185results about "Controlled members" patented technology

The invention relates to a disengagement device, in particular to a mechanical disengagement device for a subway gear box, and solves the problems that according to an existing speed reducer dynamic disengagement device, when inner teeth of a gear sleeve are combined with outer teeth of combination teeth, a synchronous ring is used for a long time, friction force is reduced, and the failure rate is increased. The outer spline section is arranged on the axle, the out-of-gear sliding sleeve is meshed with the outer spline section of the axle through the inner spline on the inner wall and is in sliding fit with the axle in the axial direction, and when the traction motor breaks down, the shifting fork is driven by the executing mechanism to shift the out-of-gear sliding sleeve, so that the outer spline of the out-of-gear sliding sleeve is separated from the inner spline of the sliding groove of the driven gear; at the moment, torque is input from the axle and transmitted into the out-of-gear sliding sleeve, the out-of-gear sliding sleeve is not meshed with the driven gear any more, the driven gear is only rotationally connected with the axle, torque transmission is interrupted, the structure is simple, meshing of the out-of-gear sliding sleeve and the driven gear does not need a synchronizing ring, and fault points are reduced.

The application discloses a gear shifting mechanism, a transmission, an electric assembly and a vehicle. The gear shifting mechanism comprises a first gear, a second gear and a shift fork. The first gear and the second gear are arranged at intervals along a first direction. The shift fork is movable along the first direction and is used for cooperating with the first gear or the second gear. The shift fork is provided with a first oil passage and a second oil passage. A first oil outlet of the first oil passage is used for supplying oil to a side of the first gear facing the second gear. A second oil outlet of the second oil passage is used for supplying oil to a side of the second gear facing the first gear. A first oil inlet of the first oil passage is automatically opened when the first gear is shifted, and is automatically closed before the first gear is shifted and at the end of the shifting. A second oil inlet of the second oil passage is automatically opened when the second gear is shifted, and is automatically closed before the second gear is shifted and at the end of the shifting. According to the gear shifting mechanism, the gear shifting mechanism can guarantee lubrication and cooling effects, and the circulation and disconnection of lubricating oil can be realized without the participation of a control mechanism, so that the cost is reduced.

The invention relates to the field of gearboxes, in particular to a precise forced lubrication structure and method for a gear pair of a gearbox. Comprising an upper cover, fixed spraying holes and a plurality of shifting fork shafts. A lubricating oil channel is arranged in the upper cover and provided with an oil inlet communicated with an external oil source. The fixed spraying holes are formed in the upper cover and communicated with the lubricating oil channel, and lubricating oil is continuously sprayed to a long meshing gear pair in the gearbox. The multiple shifting fork shafts are installed on the gearbox, and an in-shaft oil duct extending in the axial direction is arranged in each shifting fork shaft. The upper cover is further provided with upper cover spraying holes corresponding to the shifting fork shafts, and the upper cover spraying holes are communicated with the lubricating oil channel. Each shifting fork shaft is provided with a shaft spraying hole, and the shaft spraying holes are communicated with the corresponding in-shaft oil way fluid. According to the invention, the problem of insufficient lubrication of key parts caused by ineffective dissipation of lubricating oil by an irrelevant gear pair is solved, and the lubrication reliability and heat dissipation efficiency of the key gear pair are greatly improved.

The gear selecting and shifting executing mechanism comprises a gear selecting air cylinder, the gear selecting air cylinder is connected with a gear selecting shaft, the gear selecting shaft is connected with a pin connecting block, the pin connecting block is connected with a gear selecting fork, the gear selecting fork comprises a U-shaped connecting section and a U-shaped fork foot, the U-shaped connecting section comprises a first U-shaped cavity, and the first U-shaped cavity is used for installing the pin connecting block in a matched mode; the U-shaped fork foot comprises a second U-shaped cavity, a gear shifting shaft is sleeved with the second U-shaped cavity in a matched mode, and the gear shifting shaft is connected with a gear shifting air cylinder. According to the gear selecting and shifting executing mechanism of the AMT, the gear selecting air cylinder and the gear shifting air cylinder are arranged in the 90-degree mode, the height difference exists in the height direction, the space occupied by the whole system is reduced to the maximum extent through the arrangement mode, and the compatibility of the gear selecting and shifting executing mechanism is improved to the maximum extent; the gear selecting and shifting executing mechanism can be matched with different transmission bodies, and the product serialization design from a 10-gear AMT transmission to a 20-gear AMT transmission is achieved.

The application belongs to the technical field of vehicle electric drive, and provides a main-aid collaborative double-motor electric drive axle configuration and a control method thereof, and the technical scheme comprises a gear shaft system matched with a main motor and comprising at least one first synchronizer, a gear shaft system matched with an auxiliary motor and comprising at least one second synchronizer; each three-stage planetary gear set reduction gear shifting mechanism comprises at least one third synchronizer and one planetary gear reduction mechanism, a gear shifting fork is arranged on each first synchronizer, second synchronizer and third synchronizer, and the gear shifting fork is connected to a controller; in each driving mode, a corresponding motor driving control strategy is adopted to output a driving torque distributed by a motor; based on the output driving torque distributed by the motor and a gear shifting switching strategy, the gear shifting forks of the synchronizers are switched to realize multi-gear shifting. On the premise of compact overall arrangement, system efficiency optimization is ensured in the whole working condition range.

The application discloses a variable speed system and an all-terrain vehicle, and the variable speed system comprises a box, an input shaft, a free gear, a synchronous gear, a shift fork shaft, a shift fork and an electromagnetic clutch assembly. The box is arranged to form a containing cavity. The input shaft is installed on the box. The free gear is installed on the input shaft and is in clearance fit with the input shaft. The synchronous gear is connected with the input shaft through a spline and can move along the input shaft in the axial direction to make the synchronous gear engage or separate from the free gear. The shift fork shaft is fixed to the box, and the shift fork is sleeved on the shift fork shaft and can move along the shift fork shaft in the axial direction. The electromagnetic clutch assembly comprises two electromagnetic clutches arranged along the shift fork shaft in the axial direction, and the shift fork is located between the two electromagnetic clutches. The electromagnetic clutches are switched to switch the combination of the synchronous gear and the free gear. Through the above arrangement, the structure of the variable speed system is simpler, and the overall cost is lower.

The utility model relates to the field of vehicle parts, in particular to an electric sub-drive type gear packet and a vehicle, which comprises an input shaft, a synchronizing ring, an electric driving source and a driving unit for moving the synchronizing ring, the electric driving source is connected with the driving unit, and the synchronous ring is rotationally connected to the driving unit; the input shaft comprises a first input shaft body and a second input shaft body used for stretching into the tooth bag shell, and the first input shaft body and the second input shaft body are coaxially arranged. The synchronizing ring simultaneously acts on the first input shaft and the second input shaft, and at the moment, the first input shaft is in power connection with the second input shaft; the synchronizing ring only acts on one of the first input shaft and the second input shaft, and at the moment, power transmission of the first input shaft and the second input shaft is cut off. According to the scheme, switching of power input cutting and power connection transmission of the tooth bag is achieved in an electric mode, and switching of vehicle driving modes is achieved.

The utility model relates to a hybrid shifting fork assembly of an automobile transmission, which comprises a first shifting fork, a second shifting fork, a third shifting fork and a fourth shifting fork. The first shifting fork and the fourth shifting fork are oppositely distributed and located on the sides, away from each other, of the second shifting fork and the third shifting fork. The first shifting fork, the second shifting fork, the third shifting fork and the fourth shifting fork are fixedly connected with one ends of the wave-shaped blocks respectively, and the end faces of the other ends of the four wave-shaped blocks are of a corrugated structure respectively and used for being matched with wave-shaped grooves in the corresponding portions in a gearbox. The gear shifting fork assembly has the advantages that the structure is compact, the occupied space is small, the gear shifting fork assembly is assembled in a gearbox, gear shifting and speed changing are achieved, the gear shifting accuracy and efficiency are high, abrasion resistance is good, the noise reduction effect is good, and cost is low.

The application discloses a gear box for integrated variable speed gear shifting synchronization and multifunctional test bed, belonging to the field of rail transit technology, comprising an input shaft group, an output shaft group, a right synchronization shaft group, a left synchronization shaft group, a box body, a sealing structure, a lubricating system and a state monitoring module; the input shaft group comprises an input shaft and bearing one, and two groups of fixed gears with different teeth numbers are arranged on the input shaft; the output shaft group comprises bearing two, bearing three and gear one. The core of the gear box is integrated with the input shaft group, the output shaft group, the right synchronization shaft group, the left synchronization shaft group, the matched box body, the sealing structure, the lubricating system and the state monitoring module, three core functions of variable speed, gear shifting and synchronization are integrated, and no additional auxiliary equipment such as independent gear box and synchronization box is needed, so that the equipment layout of the test bed is greatly simplified, the occupied space is reduced, the installation and debugging difficulty caused by the connection of multiple devices is reduced, and the space utilization and overall compactness of the test bed are improved.

The embodiment of the utility model provides a gear selecting device and a gear selecting and shifting system, and relates to the technical field of vehicle gear selecting, the gear selecting device comprises a gear selecting mechanism and a limiting mechanism, the gear selecting mechanism is used for being arranged on a box body of a gearbox, the gear selecting mechanism comprises a shifting fork and an adjusting assembly connected to the shifting fork, and the adjusting assembly is used for driving the shifting fork to move in the horizontal direction; the shifting fork is moved to the position of the gear selecting guide block for gear selecting; the limiting mechanism comprises a driving part and a limiting assembly, and the driving part is used for driving the limiting assembly to move to the positions of the multiple gear selecting guide blocks on the box body so that the shifting fork can abut against the limiting assembly, the position, corresponding to the gear selecting guide blocks, of the shifting fork can be limited, shifting fork offset positioning is avoided, the gear shifting precision is improved, and therefore the operation comfort of a driver is improved.

The invention provides an integral track gearbox. The gearbox comprises an input gear shaft assembly, a gear shifting shaft assembly, a speed changing shifting fork assembly, a speed changing shaft assembly, a steering shaft assembly, an idle shaft assembly, a left output shaft assembly, a right output shaft assembly and a gearbox shell. The gear shifting shaft assembly is composed of a gear shifting shaft, a third bearing, a gear shifting main gear, a first-gear gear, a first needle bearing, a first needle bearing inner ring, a first spline housing, a first gear switch, a third-gear gear, a second needle bearing, a second needle bearing inner ring, a first spacer bush, a second-gear gear, a third needle bearing, a third needle bearing inner ring, a second spline housing, a second gear switch, a gear shifting shaft collar and a fourth bearing. Accumulated errors are eliminated, the part installation position precision is improved, and the operation performance is improved; the maintenance efficiency is improved and the maintenance cost is reduced; the strength performance of the gearbox assembly is improved; the failure rate of crawler driving wheel parts is reduced, and the safety performance is improved; machining difficulty of the track driving wheel is reduced, cost is saved, and efficiency is improved.

The invention belongs to the technical field of vehicle differential mechanisms, and discloses a vehicle differential mechanism device integrated with a gear shifting function, which comprises a shell, a basin gear, a rotating shaft, a forward gear, a reverse gear, a planetary gear set and a gear shifting mechanism. The basin teeth serve as power input ends, and rotating shafts are symmetrically arranged on two sides; the forward gear is connected with a basin gear ring fixed on the basin gear through a one-way bearing, and the backward gear is meshed with the forward gear through a planetary gear set; the gear shifting mechanism can select one of the rotating shaft and the forward gear or the backward gear to be combined so as to achieve forward movement or backward movement. When the wheels on one side of the vehicle are suspended and lose adhesive force, the one-way bearing on the side automatically overruns and idles to cut off power transmission, torque is completely transferred to the wheels on the landing side, and automatic escape is achieved; during normal steering, differential speed of left and right wheels is realized through locking and overrunning characteristics of the one-way bearing. The differential function and the forward and reverse gear function are integrated, the structure is compact, transmission is efficient, and the transmission is suitable for two-wheel drive vehicles, four-wheel drive vehicles and crawler-type vehicles.

The invention discloses a multi-gear double-speed power output small four-wheel tractor gearbox, and relates to the technical field of tractor gearboxes. The power input shaft is installed between the upper portions of the inner walls of the two sides of the gearbox body through a bearing, and a high-low gear change gear and a shuttle type gear shifting meshing sleeve are sequentially installed on the outer wall of the power input shaft from left to right; through cooperative work of the high and low gear speed change gear, the shuttle type gear shifting meshing sleeve, the reverse gear transmission gear, the reverse gear first idle gear, the reverse gear second idle gear and other components, original two reverse gears are expanded into eight reverse gears, so that the number of the reverse gears is equal to that of forward gears; the problems that an existing small four-wheel tractor is deficient in reverse gear number and narrow in speed ratio selection range are effectively solved, then the efficiency of back-up operation such as ditching and backfilling is remarkably improved, meanwhile, the torque is amplified through a low-gear mode of the high-gear and low-gear speed change gear, the problem that power is insufficient under the back-up heavy-load working condition is solved, clutch abrasion is reduced, and potential safety hazards are avoided.

The utility model discloses a two gear rack type gear shift mechanism relates to gear shift mechanism technical field, and the utility model discloses a shell, one side surface fixedly connected with side box has of shell, one side surface fixedly connected with servo motor has of side box, servo motor output fixedly connected with rotating column, rotating column outside surface fixedly connected with gear disc, gear disc outside surface is connected with rack plate with meshing, the bottom surface fixedly connected with follow board has of rack plate, the bottom surface fixedly connected with the lamination board has of follow board, through being provided with servo motor, rotating column, gear disc, rack plate, follow board, lamination board and yoke, more fast and accurate completion gear shift operation, simple structure, and transmission efficiency is high, and the cost is lower, through servo motor drive rotating column, gear disc rotates, and then drive rack plate, follow board, lamination board and yoke movement, and the yoke is inserted into the gear shift yoke groove in gearbox.

A device for converting a rotational motion (D) into a linear motion (A) for an electronic transmission actuator of a utility vehicle is disclosed. The device comprises a gear shift drum assembly (110, 120) for performing the rotational motion (D); at least two gates (111, 112) on a surface of the gear shift drum assembly (110, 120), each gate (111, 112) having at least one neutral position (115, 125); and at least two shift forks (131, 132) for performing the linear motion (A), the at least two shift forks (131, 132) each engaging in one of the gates (111, 112) in order to convert the rotational motion (D) of the gear shift drum assembly (110, 120) into the linear motion (A).

A modular shifting system is provided. The modular shifting system comprises a transmission including an input shaft and an output shaft, a transmission housing, gear trains accommodated in the transmission housing and constituting at least two shiftable gear ratios for establishing a transmission ratio between the output shaft and the input shaft, and a shift device for shifting between the at least two gear ratios. The shift device is detachably attached to the transmission housing. The shift device is one of an electrically actuated shift device and a pneumatically actuated shift device. The modular shifting system is configured such that the electrically actuated shift device is interchangeable with the pneumatically actuated shift device and vice versa.

This application relates to the field of vehicle technology, and provides a method, device, and electronic device for handling gear positions in a hybrid transmission. The method includes the following steps: S1: In response to a gear shifting command, determine whether the gear actuator meets the emergency gear conditions; S2: If it does, collect the operating data of the gear actuator; wherein, the operating data includes at least: the position of the shift fork, the oil pressure, and the shift fork action time of the gear actuator; S3: Based on the operating data of the gear actuator, determine the failure type of the gear actuator; S4: Based on the gear failure type and the number of failures, trigger a corresponding preset processing strategy to adjust the fluid operating parameters of the gear actuator; wherein, the fluid operating parameters include at least: the oil pressure and flow rate of the gear actuator. This invention solves the technical problem of hybrid transmissions being unable to engage or disengage gears unexpectedly due to complex road conditions.

A variable eccentric gear, consisting of an inner wheel (1), an outer wheel (2), a spring (3), a locking pin (4) and a shifting fork (5). The working state of the variable eccentric gear is changed by controlling the relative position of the inner wheel (1) and the outer wheel (2) in the radial direction. In a clutch having such variable eccentric gear, the clutch is disengaged and engaged by controlling different working states of the variable eccentric gear in the clutch, the clutch using a constant mesh gear structure.

The invention provides a method and a computer program product for adjusting the position of a shift fork of a vehicle gearbox. The method comprises the steps that the distance between a shifting fork and a reference point is monitored, and the reference point is the center position between a first-gear gear and a second-gear gear; comparing the distance with a first distance threshold; and if the distance is smaller than a first distance threshold value, the torque transmitted by the two-gear gearbox is reduced. By means of the method, the shifting fork assembly deviating from the full-tooth-width joint position can be rapidly adjusted to the full-tooth-width joint position, and therefore it is ensured that a vehicle gearbox can transmit the torque as large as possible to the wheel end of a vehicle from a motor, and meanwhile the accidental out-of-gear fault of the vehicle is avoided.

A motor vehicle (1) includes a plurality of wheels (2), a propulsion motor (3), and a transmission architecture (4) to transmit the output power of the propulsion motor (3) to the wheels (2) and comprising a drive shaft (6) driven by the output power of the propulsion motor (3), a gearbox (5) having at least one input shaft (7), one output shaft (16), and at least one engagement device (17, 17') operable to engage a relative gear ratio between the input shaft (7) and the output shaft (16), a clutch (21) selectively controllable to connect the drive shaft (6) to the input shaft (7), a drive assembly (22) comprising a rod (23) coupled to the engagement device (17') and an actuator device (24) configured to translate the rod (23) along a straight axis (H) between a first position, where the rod (23) leads the engagement device (17') to engage the gear ratio, and a second position distinct from the first position, a parking brake (25) comprising a first member (26) fixed at one among the input shaft and the output shaft (7, 16), and a second member (27) movable between a locking position, in which the second member (27) cooperates with the first member (26) to lock the first member (26), thereby locking the transmission architecture (4), and a release position, in which the first and second members (26, 27) are spaced apart, characterized in that the drive assembly (22) further comprises a locking mechanism (28) configured to lead the second member (27) into the locking position in response to a translation of the rod (23) into the second position.

The utility model discloses a control mechanism and a control assembly which are suitable for a 9-gear transmission and have a gear locking function, and solves the problem that in an upper cover gear locking structure in a single H gas circuit of the existing 9-gear transmission, when a reversing function cannot be used, judgment of an operator on a currently used gear is disordered. The limiting device is provided with a telescopic end, the telescopic end retracts to an initial position and extends to a stop position, and the fixed end of the limiting device is arranged on a shell of the control mechanism; a limiting boss is arranged on the outer circumferential wall of the gear engaging shifting block and located on the side opposite to the groove, the side, close to the gear engaging arm, of the limiting boss is a limiting face, and when the gear engaging shifting block is located at the neutral gear, the limiting face corresponds to the side wall of the end of the telescopic end. The height of the limiting face in the radial direction is H, when the telescopic end is located at the initial position, the distance between the end portion of the telescopic end and the peripheral wall of the gear engaging shifting block is L0, when the telescopic end is located at the stop position, the distance between the end portion of the telescopic end and the peripheral wall of the gear engaging shifting block is L1, and H is larger than L1 and smaller than L0.

The clutch gearbox assembly comprises a gearbox body, the gearbox body comprises a shell, a shaft cover is installed on the left side of the shell, a main shaft is installed in the middle of the shaft cover, the right side of the main shaft is in butt joint with an input spline sleeve, and the right side of the main shaft is in butt joint with the input spline sleeve. A reverse gear bushing is arranged outside the right end of the main shaft; the transmission case main body and the transfer case main body are connected together, so that the transmission case can be used for a vehicle with the axle distance smaller than 3 meters, horizontal transmission of a transmission shaft is guaranteed, dynamic balance of the transmission shaft during operation is avoided, and the problems that accessories of the transmission shaft, a transfer case assembly and a front axle are prone to being damaged are solved. Through cooperation of the shell, the gearbox, the transfer case, the input gear shaft, the front drive spline shaft, the rear drive shaft, the synchronizer, the sliding gear sleeve and other accessories, speed change and high-low gear switching can be flexibly achieved, power is reasonably distributed to a front axle and a rear axle, and the requirement for stable running of an automobile is met.

The present disclosure provides a two-speed transfer case with a single actuator that may implement both the fork axial movement function and the ball ramp operation function by using the single actuator, and can accurately identify the butting or failure state by determining the angular difference before and after the torsion spring through the MR sensor of the motor, the position sensor that directly detects the axial position of the fork, or the angle sensor that directly measures the rotation angle of the cylindrical cam.

The invention relates to a gearbox actuator for an automated manual transmission system of a vehicle, in particular a utility vehicle, an automated manual transmission system and a vehicle. Specifically, a gearbox actuator (100) for an automated manual transmission system (250) for a vehicle (200a), in particular a utility vehicle (200b), is provided; wherein the gearbox actuating mechanism (100) comprises a main body part (105); the gearbox actuator (100) includes a shift fork (120) to actuate a gearbox (260) of the automated manual transmission system (250) by pivoting the shift fork (120); the main body part (105) comprises a pivot section (130) for providing a fixed pivot point (131) for pivotally mounting the shift fork (120); the shift fork (120) includes a bearing surface (125); and the bearing surface (125) of the shift fork (120) and the pivoting section (130) of the main body portion (105) are adapted to provide sliding contact therebetween for pivoting the shift fork (120) relative to the main body portion (105).

The utility model relates to the technical field of automobile shifting forks, and discloses an adjustable self-adaptive shifting fork assembly which comprises a main body shell plate piece, a sliding groove channel is formed in the main body shell plate piece, a main adjusting cavity is fixedly connected to one side of the main body shell plate piece, and an air pipe is fixedly communicated with the main adjusting cavity. An inner adjusting cavity is fixedly connected to the interior, away from the main adjusting cavity, of the main body shell plate, a spring is fixedly connected to the interior of the inner adjusting cavity, adjustment is achieved by changing the amount of gas in the assembly, and compared with a traditional adjusting mode, operation is easier, more convenient and faster; the working state of the shifting fork can be quickly changed only through a simple gas control device without a complicated mechanical adjustment process; for example, in the running process of a vehicle, when the driving mode needs to be switched under different road conditions, the gas amount in the main adjusting cavity can be rapidly adjusted, the shifting fork can meet the new gear requirement in time, the gear shifting response speed is greatly increased, and smoother driving experience is brought to a driver.

The invention relates to a coupling device (10) for coupling and / or uncoupling a gearwheel (21) to or from a shaft (14) and to a transmission, in particular for an electrical drive assembly, comprising a corresponding coupling device (10).

A continuously variable automatic transmission for an off-road vehicle includes a power input stage, a CVT, a clutch, a forward and reverse gear assembly, and a power output stage connected in sequence. A shift mechanism connected to the forward and reverse gear assembly includes a shift drum, a shift fork, a shifting driving gear sleeve, a spring bias plate seat and a spring-with-two-moving-ends. The shift drum has a shifting track controlling the shift fork and a biasing track controlling the spring bias plate seat. An aggregate sideways force on the shift fork in an axial direction, which includes the force from the spring-with-two-moving-ends, can be controlled at least in part by relative spacing between the shifting track and the biasing track as a function of rotation of the shift drum.