26 results about "Portal axle" patented technology

The invention relates to a single-motor-driven double-opening vertical hinged door driving device capable of being synchronously and independently opened and closed, which comprises a driving motor (1) and a synchronous transmission device (2), the driving motor (1) is provided with two output shafts (11) with opposite rotating directions, clutches (3) are respectively arranged on the two output shafts (11), the output part of one clutch (3) is connected with a door shaft (4) of one side door, and the output part of the other clutch (3) is connected with a door shaft (5) of the other side door. Or the clutch (3) is connected with the door spindle (4) of one side door through a synchronous transmission device (2), the output part of the other clutch (3) is connected with the door spindle (4) of the other side door through the synchronous transmission device (2), and the synchronous transmission device (2) is composed of two transmission wheels, a transmission belt, a transmission chain, a transmission rope or a transmission rod which are arranged on the output part of the clutch (3) and the door spindle (4) respectively. The door is better in using effect and convenient to control, the two doors can be opened and closed synchronously, and one door can be opened and closed independently. And when the two doors are not synchronous, the two doors are easier to recover to a synchronous state.

1. The name of the design product: low-floor portal axle. 2. The use of the design product: for light-weight passenger car axle. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention discloses a transfer case, which relates to the technical field of vehicle engineering and comprises a case body, a double-output-shaft reducing mechanism, a steering driving mechanism, two planetary gear mechanisms and two output transmission mechanisms, gear rings in the planetary gear mechanisms are fixedly connected with the corresponding output shafts; a third gear is fixedly arranged on a sun gear shaft in each planetary gear mechanism, and the two third gears are meshed with each other; each output transmission mechanism comprises a door bridge input shaft coaxially and fixedly connected with a planet carrier in the corresponding planet gear mechanism and a door bridge output shaft in transmission connection with the door bridge input shaft, one door bridge output shaft is used for driving wheels on one side of the vehicle to rotate, and the other door bridge output shaft is used for driving wheels on the other side of the vehicle to rotate. The steering driving mechanism is used for driving a sun wheel shaft to rotate. Zero steering of the vehicle and steering in the running process can be achieved.

The invention discloses a slope out-swinging steel structure safety door device. According to the device, an upper sub-door and a lower sub-door are hinged to form a composite door body. The upper sub-door is hinged to the door shaft frame through a rotating shaft hinge and can horizontally rotate around the door shaft frame; the lower sub-door is hinged to the lower bevel edge of the upper sub-door through a sub-door hinge, and the far end of the bottom is provided with a roller dynamically abutting against the slope. During opening, the electric control motor drives the upper sub-door to horizontally rotate outwards by 90 degrees + alpha, and alpha is the inclination angle of the upper bevel edge of the lower sub-door and is matched with the slope gradient; and meanwhile, the sub-door is driven by force generated when the slope faces abut against the rolling wheels to automatically turn to the horizontal storage state from the vertical protection state around the hinge points. In the completely-opened state, the lower sub-door is flattened and attached to the slope face, the projection width is consistent with the clear width of the frame, it is ensured that the clear width of the channel is completely released, and space zero-occupation is achieved. And during closing, the upper sub-door is retracted inwards, and the lower sub-door automatically resets to a vertical state under the action of self weight after slope collision is relieved and collides with the frame to form gravity self-locking, so that continuous closed protection is completed. According to the invention, the slope surface is used as an element for driving the state conversion of the door body, so that space zero-occupation and gradient self-adaption of slope channel protection are realized; the steel structure door body and the wear-resistant rollers are combined to absorb vibration impact, so that the impact resistance and the reliability are improved; and safety guarantee and energy efficiency optimization are enhanced through the dual mechanisms of electric control driving and gravity self-locking.

Door spindle which can be opened and closed in two directions, characterized in that it has an outer sleeve (6), a first cover part, a second cover part, an output shaft (1203), a slide column (12), a central shaft (9), a return spring (7) and a spring locking part, wherein one end of the outer sleeve (6) is provided with a flange on which a flange installation hole (601) is provided, and wherein the second cover part is arranged in a tubular cavity of the outer sleeve (6) located close to the flange installation hole (601), and wherein the first cover part is arranged in a tubular cavity at the other end of the outer sleeve (6), and wherein the outer sleeve (6) is firmly connected to the first cover part and the second cover part, and wherein a first end section (9001) of the central shaft (9) projects into the inner cavity of the first cover part, and wherein the central shaft (9) and the first cover part form a fitting structure which is axially displaceable and rotates synchronously, and wherein a second end section (9002) of the central shaft (9) projects into the inner cavity of the slide column (12), and wherein the second end section (9002) is provided with a first drive shaft (901) and a second drive shaft (902) which are arranged opposite each other, offset upwards and downwards, wherein the slide column is provided with a first slide (1201) and a second slide (1202) which are arranged opposite each other, offset upwards and downwards, and wherein the first slide (1201) and the second slide (1202) are each V-shaped, and wherein the first drive shaft (901) extends into the first slide (1201) and the second drive shaft (902) extends into the second slide (1202), and wherein the output shaft (1203) protrudes from the cylinder base of the slide column (12), and wherein the output shaft (1203) protrudes from the inner cavity of the second cover part, and wherein the output shaft (1203) and the slide column (12) are movably connected to the second cover part, and wherein the output shaft (1203) and the slide column (12) move only in the circumferential direction in the tubular cavity of the outer sleeve (6), and wherein the spring locking element is firmly embedded in the central section of the central shaft (9), and wherein the assembly method of the return spring (7) consists of placing the return spring (7) on the shaft body of the central shaft (9) between the upper end face of the spring locking element and the inner end face of a non-axially moving component located above the spring locking element; and wherein the spring locking part moves axially and compresses the return spring (7) when the output shaft (1203) and the slide column (12) move circumferentially in the tubular cavity of the outer sleeve (6) and the first drive shaft (901) slides in the first slide (1201) and slides from the lowest position of the V-shape to the highest position of the V-shape and the second drive shaft (902) slides in the second slide (1202) and slides from the lowest position of the V-shape to the highest position of the V-shape.

Electric portal axle (1) for the electric drive of a motor vehicle, with two spur gear stages (13, 14) for driving two wheels of the axle, wherein the portal axle (1) has a single electric machine (2) to which a transmission (5) and a differential (7) are arranged, and wherein the portal axle (1) further comprises a housing (28), characterized by the fact that the transmission (5) is a switchable transmission (5) with freewheel (6), the switchable transmission (5) is designed as a planetary gear set, and for switching two gear stages of the portal axle (1) the latter has a switching means (23), wherein in a first gear stage a ring gear (9) of the transmission (5) and a housing-fixed clutch body (27) are connected and a clutch (29) which is arranged between the ring gear (9) and a planet carrier (11) of the transmission (5) is open, and wherein in a second gear stage the ring gear (9) and the housing-fixed clutch body (27) are separated and the clutch (29) is closed, the clutch (29) is designed as a friction-fit clutch, wherein the clutch (29) is arranged between the switching means (23) which is connected to the ring gear (9) in a torque-transmitting manner and the planet carrier (11).

The utility model discloses a hot air door shaft sealing device, and belongs to the technical field of shaft sealing. The sealing device comprises a dynamic sealing sleeve and a static sealing sleeve which are sleeved inside and outside, wherein a sealing assembly is arranged between the dynamic sealing sleeve and the static sealing sleeve; the sealing assembly comprises an elastic piece, a first sealing ring and a shaft sleeve which are sequentially arranged on the movable sealing sleeve in a sleeving mode from top to bottom. The outer circumferential wall of the movable sealing sleeve and the inner circumferential wall of the static sealing sleeve are each provided with an annular table, the first sealing ring is located above the annular tables, the shaft sleeve is located below the annular tables, and a steering channel is formed between the first sealing ring and the shaft sleeve. The steering channel is used for converting axial sealing at the peripheral wall of the dynamic sealing sleeve into plane sealing at an air outlet of the steering channel, and the air outlet of the steering channel is arranged far away from an axial sealing surface between the shaft sleeve and the dynamic sealing sleeve; the first sealing ring is a high-temperature-resistant metal sealing ring, and the metal sealing ring conducts elastic compensation through the extrusion elastic force of the elastic piece.

A portal axle arrangement 1 for a motor vehicle includes at least one portal housing 2 and at least one suspension arm 5, 6. The at least one portal housing 2 includes a receiving section 7 for a portal gear and at least one connecting section 8, 9 for the at least one suspension arm 5, 6, in which the at least one connecting section 8, 9 is designed as a support section. A motor vehicle including such a portal axle arrangement is also provided.

The application relates to a vehicle external modular bearing device, belonging to the technical field of vehicle accessories, which comprises a first climbing rod, a second climbing rod arranged on one side of the first climbing rod, an upper step plate assembly arranged between the first climbing rod and the second climbing rod, a door shaft connecting handle arranged on the side of the first climbing rod away from the second climbing rod, and at least one lower step rod arranged below the upper step plate assembly. The lower step rod comprises a side hinge base and a hinge rod. The side hinge base is arranged on the side of the first climbing rod close to the door shaft connecting handle. One end of the hinge rod is connected to the side of the side hinge base away from the first climbing rod through a hinge shaft, so that the hinge rod can rotate around the hinge shaft and has a horizontal expansion working state and a storage state of being inwardly retracted close to the first climbing rod. The application can effectively avoid the possibility that a user climbs the lower step rod in a dangerous state of a vehicle tail door being open, thereby improving the safety.

A portal axle as well as a method for manufacturing a portal axle for a rail vehicle, which has an axle centre part extending along a longitudinal axis and two kingpins, one of which sits on a first end section of the axle centre part and a second on a second end section of the axle centre part formed opposite to the first end section. The kingpins are oriented away from the axle centre part and form an axis of rotation in use for a rail wheel rotatably mounted on the respective kingpin. The portal axle has optimised usage properties with minimised weight. This is achieved by a longitudinal opening extending in the longitudinal direction of the portal axle being formed in at least one of the mould components. The invention further provides a method for manufacturing an axle of this type.

This invention belongs to the field of air circuit sealing for off-road vehicle chassis, and particularly to a rotary sealing structure for the central inflation / deflation system of a vehicle portal axle. It includes a stationary component, a rotating component, a bearing component, and a pair of dynamically and statically mating mirror-finish silicon carbide sealing components. The stationary and rotating components are coaxially arranged, with a central through-hole inside the stationary component for compressed air to pass through. The bearing component is positioned between the stationary and rotating components to support the free rotation of the rotating component relative to the stationary component. The mirror-finish silicon carbide sealing component includes a stationary ring and a rotating ring. The stationary ring is fixed to the stationary component, and the rotating ring is fixed to the rotating component. The mirror-finished end faces of the two rings are fitted together to form a gas sealing surface. This invention achieves a non-entangled connection between the vehicle body fixed pipeline and the portal axle rotating pipeline through the relative rotation of the stationary and rotating ends, avoiding pipeline twisting and breakage, and improving system reliability.

The utility model discloses a transmission structure of an automobile door axle gear box, and particularly relates to the field of gear boxes, which comprises a first gear box body, a second gear box body is arranged on one side of the first gear box body, a first bolt is inserted in the second gear box body, and the first bolt is connected in the first gear box body through threads. And a plurality of through holes are formed in the first gear box body, second bolts are inserted into the through holes, the second bolts are connected into the second gear box body through threads, and a positioning rod is fixedly connected to one side of the second gear box body. By arranging the first gear, the second gear and the third gear, a series of problems that a straight-tooth gear is loud in noise at a high speed, a helical-tooth gear is quick in side face abrasion and low in strength, and a chain and a chain wheel are large in size and low in torque during transmission are solved; the herringbone gear applied to the automobile door bridge has the advantages of low noise, small size, strong structure, easiness in layout, low heat generated during transmission, high durability and the like.

The utility model discloses a kind of throttle shaft edge grinding positioning tool, including loading platform, bottom, electric rotary table, lateral frame and axle seat raw edge pressurized polishing unit, the utility model is in the process of using, by driving stepper motor one and stepper motor two, stepper motor one drives rotating seat one part reverse up, in rotating seat one reverse up process, the edge grinding roller one installed on rotating seat one will close in door shaft piece surface raw edge area, synchronous drive stepper motor two will drive rotating seat two follow-up, the edge grinding roller two installed on rotating seat two surface will be inserted and adhere in door shaft piece inner cavity raw edge area, subsequently by driving electric rotary table door axle workpiece rotation, edge grinding roller one and edge grinding roller two will realize door axle workpiece outer surface and inner cavity surface edge grinding step, guarantee door axle workpiece edge grinding effect.

The utility model discloses a double-turning-plate air locker used in a flue negative pressure area. Relates to the field of flue ash buckets. When the interior of an existing ash hopper is in a negative pressure state, a single-turning-plate air lock often cannot achieve automatic ash discharging or cannot discharge ash due to the fact that air is sucked at the opening moment to bring the ash into a flue again, and therefore the double-turning-plate air lock used in the flue negative pressure area is provided. The valve comprises a valve body, a dust inlet and a dust outlet are formed in the top of the valve body, an upper-layer turning plate and a lower-layer turning plate are installed in the valve body respectively, the tail of the upper-layer turning plate and the tail of the lower-layer turning plate are connected with a shaft body of a door shaft, and a sleeve is fixedly connected to the shaft face, close to the end, of any end of the door shaft. And the sleeve is fixed to the shaft face of the door shaft, the outer cylinder face of the sleeve is fixedly connected with an adjustable counter weight hammer, when the door shaft rotates, the counter weight hammer is driven to rotate synchronously, and the upper-layer turning plate and the lower-layer turning plate are automatically reset after being turned over through the counter weight hammer. The turning plate air lock is applied to the field of turning plate air locks in the negative pressure area of the flue.

An access system for a vehicle has a door mounted to rotate about a door shaft and steps to facilitate entry into the vehicle, the steps being adjacent to the door. The access system has a fairing for covering at least one of the steps The fairing is mounted so as to rotate about a fairing shaft. The fairing is able to be driven in rotation by the door, in the same direction of rotation as that of the door, via a gear system comprising a first gear wheel secured to the door shaft and cooperating with a second gear wheel secured to the fairing shaft.

This invention discloses an electric press mold frame gantry shaft and an electric press, belonging to the field of powder press technology. The gantry shaft consists of multiple lower punch motors and lead screws. The lower punch motors are symmetrically arranged on both sides of the mold plate, with each lower punch plate corresponding to two centrally symmetrical lower punch motors, ensuring balanced driving force. The lower punch motors employ a stepped hollow shaft, with the lead screw threaded into the hollow part of the shaft. A force sensor is installed at the connecting rod, enabling real-time force control of the gantry shaft and significantly improving multi-axis synchronization accuracy. Each lower punch plate is equipped with an adjustment mechanism consisting of a wedge groove, a wedge block stop, and an adjusting screw, allowing for fine adjustment of the stop's forming position and convenient compensation for mold length errors without the need to replace the mold or connecting parts. This invention features a compact structure, stable drive, and convenient adjustment, effectively improving powder forming accuracy and production efficiency.

The present invention provides a method for disassembling and assembling a spherical bearing for a large-sized hydraulic cylinder, comprising the following steps: installing a temporary work platform for removing a pin shaft of a support hinge seat bearing, lifting the construction worker to the hinge door shaft of the hydraulic cylinder using a vehicle-mounted hanging basket, removing the hinge door shaft using a hinge door shaft removal tool, lifting the hydraulic cylinder so that the support hinge seat is above the temporary work platform, and having the construction worker on the temporary work platform remove the pin shaft of the support hinge seat bearing; lifting the hydraulic cylinder to the designated position and removing the spherical bearing with a bearing removal tool;Checking the removed pin shaft and joint bearing, determining the cause of jamming, and repairing or replacing them. The present invention can shorten the processing time for the problem of joint bearing jamming of a large hydraulic cylinder, improve work efficiency, ensure the personal safety of operators, reduce the risk and maintenance cost of long-distance transportation, improve the reliability of the gate system, and provide a strong guarantee for the flood control and spillway control tasks of the hydropower station.

The invention relates to the technical field of urban public transport vehicle doors, in particular to an electric inner swing door based on a six-rod motion executing mechanism, which comprises a vehicle body, a driving mechanism, the six-rod motion executing mechanism, a left door shaft assembly, a right door shaft assembly, a left door plate assembly, a right door plate assembly and a control module, according to the electric inner swing door mechanism, through cooperative operation of the driving mechanism and the six-rod motion executing mechanism, synchronous opening and closing of the door plate assembly are achieved through the auxiliary effect of the door shaft assembly, waste of thrust of a traditional push rod structure and abrasion and noise of a door shaft are reduced, and the electric inner swing door mechanism is high in practicability. And the driving force directly acts on the door plate, so that the power transmission path of the inner swing door is optimized, and the stability and the high efficiency of vehicle door movement are improved.

A single-leaf large-opening-degree sliding plug door system comprises a door plate and a fixed frame module fixed to a vehicle body, and a sliding frame module is arranged on the fixed frame module in a sliding mode; the door plate is connected with the sliding cylinder assembly through the door carrying frame, and the sliding cylinder assembly is arranged on the sliding frame module in a sliding mode. The sliding cylinder assembly is connected with the driving connecting rod module, and the driving connecting rod module drives the sliding cylinder assembly to move; a rocker arm assembly is arranged in the driving connecting rod module and connected with a door shaft through a connecting rod, and the door plate is connected with the door shaft. Compared with the prior art, the invention has the following beneficial effects: 1, a parallel-bar structure is used, the overall rigidity is improved, the space occupied by the mechanism is greatly reduced, the structure is compact, the overall size of the mechanism is small, the requirements of more vehicle types are met, and the vehicle is not limited by an air duct any more; 2, a plane crank sliding block dead point structure is adopted as a locking structure, and the vehicle door unlocking problem occurring in the vehicle bumping or emergency braking process is solved;

The invention provides a bin door assembly and a feeder, and relates to the technical field of pet supplies. The bin door assembly comprises a bin door and a self-locking module, and the bin door is provided with a door shaft; the self-locking module comprises at least one stage of transmission unit; each stage of transmission unit comprises a driving transmission part and a driven transmission part, the driving transmission part is provided with a spiral tooth part, the driven transmission part is provided with a driven tooth part, and spiral teeth are meshed with the driven tooth part; when the transmission unit is in a single stage, the driven transmission piece is in transmission connection with the door shaft of the bin door; when the transmission units comprise at least two stages, in the adjacent transmission units, the driving transmission part of the transmission unit of the upper stage is in transmission connection with the driven transmission part of the transmission unit of the lower stage, and the driven transmission part of the transmission unit of the last stage is in transmission connection with the door shaft of the bin door; the lead angle of the spiral tooth part is smaller than the equivalent friction angle, and a one-way self-locking transmission pair is formed. According to the bin door assembly, the bin door locking reliability can be improved, operation is convenient, and the failure rate is low.

The present invention provides a door hinge system that is easy to disassemble and assemble, which includes a box body and a door body. An axle body is provided on the box body, and a bush is provided on the door body. A limiting device is provided on the door body and / or the box body. The bush is made of a material with elastic deformation. The door body and the box body are connected through the axle body and the bush. The limiting device restricts the rotation of the axle body in the bush when the door body is fully opened, and when the door body is fully opened: the distance between two opposite sliding contact surfaces of the bush when elastic deformation occurs under the action of the gravity of the door body itself, the limiting device, the axle body and the bush is less than the diameter of the cylinder where the axle body is located, and the distance between two opposite sliding contact surfaces of the bush when elastic deformation occurs under the action of a force F on the door body, the limiting device, the axle body and the bush can be greater than or equal to the diameter of the cylinder where the axle body is located.

The utility model relates to the technical field of civil air defense engineering, specifically relates to a kind of opening and closing device of protective door, comprising: support mechanism, the support mechanism includes first wheel frame and first wheel group;The first wheel group is installed on the first wheel frame, the first wheel frame is used to install in the lower part of protective door and is located in the end close to door shaft;Power opening and closing mechanism, the power opening and closing mechanism includes second wheel frame, second wheel group and drive assembly;The second wheel group is installed on the second wheel frame, the second wheel frame is used to install in the lower part of protective door and is located in the end away from door shaft;The drive assembly is installed on the second wheel frame, and the drive assembly is driven to connect on the second wheel frame.The utility model reduces the bearing capacity of door shaft position, solves the technical problem that protective door opening and closing device in prior art is prone to reduce the service life of protective door body.

The invention discloses a switch assembly of a sliding plug door, the sliding plug door and a railway wagon, and belongs to the technical field of vehicles. The invention relates to a switch assembly of a sliding plug door, the sliding plug door and a railway wagon. A transverse lock catch mechanism comprises a spring bolt assembly and a lock catch. The spring bolt assembly is installed on the sliding plug door in a telescopic mode, the lock stop is fixed outside the sliding plug door, and the lock stop is provided with a restraining hole allowing the end of the spring bolt assembly to be inserted. The plug-pull rotating mechanism comprises a pull rod assembly and a door shaft assembly; the door spindle assembly is rotatably installed on the sliding plug door, and the pull rod assembly is connected with the door spindle assembly and used for driving the door spindle assembly to rotate. The driving mechanism is in transmission connection with the spring bolt assembly and the plug-pull rotating mechanism and is suitable for driving the spring bolt assembly to move out of the restraining hole, and the door shaft assembly rotates. The device is labor-saving, low in operation complexity, smooth in operation process and beneficial to efficiency improvement.

The utility model relates to the technical field of dampers, in particular to a two-stage slow-closing damper which comprises an outer shell and an inner shell, the inner shell is arranged inside the outer shell, a blocking block is arranged at the opening end of the outer shell and used for blocking an opening of the outer shell and an opening of the inner shell, a shaft hole is formed in the center of the blocking block, and the opening end of the inner shell is provided with a through hole. A shaft hole is formed in the inner shell, a piston shaft penetrates through the shaft hole and extends into the inner shell, a piston is arranged at the end of the piston shaft in the inner shell, a gap exists between the piston and the inner wall of the inner shell, a spring is arranged in the inner shell, and at least one through hole is formed in the side wall of the middle of the inner shell. The two-stage slow closing damper can generate damping to a sliding door, the sliding door is rapidly closed by a certain angle and then decelerated to a slow state until the sliding door is closed, thrust to accessories on the top of a door shaft of the sliding door is effectively reduced, and the service life of the sliding door is prolonged.