Produits et services

Rolling stock for railways; gear boxes for land vehicles; transmission mechanisms for land vehicles; clutches for land vehicles; cars; transmission shafts for land vehicles; reduction gears for land vehicles; wheels for automobiles; tipping apparatus [parts of truck and wagons]; automobile chassis; axles for land vehicles; air vehicles.

Produits et services

Rolling stock for railways; gear boxes for land vehicles; transmission mechanisms for land vehicles; clutches for land vehicles; cars; transmission shafts for land vehicles; reduction gears for land vehicles; wheels for automobiles; tipping apparatus [parts of truck and wagons]; automobile chassis; axles for land vehicles; air vehicles.

Produits et services

Rolling stock for railways; gear boxes for land vehicles; transmission mechanisms for land vehicles; clutches for land vehicles; cars; transmission shafts for land vehicles; reduction gears for land vehicles; wheels for automobiles; automobile chassis; axles for land vehicles

Produits et services

(1) Rolling stock for railways; transmission mechanisms for land vehicles; gear boxes for land vehicles; cars; transmission shafts for land vehicles; reduction gears for land vehicles; wheels for automobiles; automobile chassis; axles for land vehicles.

Abrégé

A supporting structure for a reverse countershaft of a transmission includes a transmission case, a partition wall and a boss, wherein the transmission case, the partition wall and the boss are formed integrally; a reverse idler gear installation space is provided between a side, close to a transmission main case, of the partition wall and the boss; and the partition wall is provided with a second reverse countershaft supporting hole and an auxiliary case countershaft supporting hole which are not concentric. In supporting structure for the reverse countershaft of the transmission, multiple ribs are used to support the boss of the reverse countershaft, the boss of the reverse intermediate shaft is cast until reaching the rear auxiliary case partition wall, and in combination with machining work, the reverse idle wheel space is milled by a disc milling cutter.

Classes IPC  ?

• F16H 57/021 - Structures de support d'arbres, p. ex. parois de séparation, orifices de logement de paliers, parois de carter ou couvercles avec paliers
• F16H 3/08 - Transmissions à engrenages pour transmettre un mouvement rotatif à rapport de vitesse variable ou pour inverser le mouvement rotatif sans engrenages à mouvement orbital exclusivement ou principalement à engrenages constamment en prise, pouvant être libérés de leurs arbres
• F16H 57/02 - Boîtes de vitessesMontage de la transmission à l'intérieur

Abrégé

A transmission operating mechanism includes an operating housing, wherein an inner shifting shaft is provided in the operating housing, and the operating housing is provided with, from left to right, a first position-limiting structure installation hole, a shifting block installation cavity, a second position-limiting structure installation hole and a balancing spring installation cavity; and a shifting block is installed in the shifting block installation cavity and is connected to the inner shifting shaft via a shifting block positioning pin. The spatial position of the operating housing is fully utilized to effectively arrange each functional component, and the requirement for modification is fully considered within the limited dimensional range. Therefore, various operation modes may be achieved by simply providing several modified parts without changing the operating housing.

Classes IPC  ?

• F16H 59/02 - Appareils de sélection
• F16H 63/20 - Mécanismes finals de sortie à cet effetMoyens de manœuvre pour les mécanismes finals de sortie plusieurs mécanismes finals de sortie étant mus par un seul mécanisme final de manœuvre commun par présélection, suivie d'un mouvement de chaque mécanisme final de sortie qui est provoqué par le mouvement que le mécanisme final de manœuvre effectue de deux manières différentes, p. ex. lorsqu'il est guidé par un secteur à grille
• F16H 63/30 - Caractéristiques de structure des mécanismes finals de sortie

Abrégé

A structure for reducing the effort required to shift gears in a heavy-duty transmission. A shifting fork shaft (3) is arranged in the case (1) of a transmission. A linear bearing (5) is arranged between the outer surface of the shift fork shaft (3) and the inner surface of the case (1), thus transforming the sliding friction of a large area into the rolling friction of each rolling element of the linear bearing. The present structure effectively reduces the effort required to shift gears, improves shift smoothness and overcomes the poor wear-resistance and damage caused by pulling in conventional shift fork structures, while also reducing the likelihood of irreparable damage to the transmission case caused by over-grinding of holes on said case.

Classes IPC  ?

• F16H 63/32 - Fourchettes de boîtes de vitesse

Abrégé

A reverse gear intermediate shaft supporting structure of a transmission comprises a transmission housing (100), a partition wall (101) and a boss (Q). The transmission housing (100), the partition wall (101) and the boss (Q) are in an integrated structure; a reverse gear idle wheel installation space (J) is arranged between one side, close to a main box of the transmission, of the partition wall (101) and the boss (Q); the partition wall (101) is provided with a second reverse gear intermediate shaft supporting hole (K2) and an auxiliary box intermediate shaft supporting hole (K) that are non-concentric; one side, close to the transmission housing (100), of the boss (Q) is supported on the transmission housing (100) through several ribs (a) and web plates (b, c) are arranged among the several ribs (a). In the reverse gear intermediate shaft supporting structure of the transmission, multiple ribs (a) are used to support the boss (Q) of the reverse gear intermediate shaft, the boss (Q) of the reverse gear intermediate shaft is cast to the back auxiliary box partition wall (101), and in combination with machining work, a disc milling cutter is used to mill the reverse gear idle wheel space (J).

Classes IPC  ?

• F16H 57/021 - Structures de support d'arbres, p. ex. parois de séparation, orifices de logement de paliers, parois de carter ou couvercles avec paliers

Abrégé

A transmission operating mechanism comprises a operating housing (1), and an inner shifting shaft (3) is arranged in the operating housing (1). A first limiting structural installation hole (100), a shifting fork installation cavity (200), a second limiting structural installation hole (300) and a balance spring installation cavity (400) are sequentially arranged in the operating housing (1) from left to right. A shifting fork (4) which is connected with the inner shifting shaft through a shifting fork positioning pin (13) is arranged in the shifting fork installation cavity. The transmission operating mechanism can complete various operating types through making full use of the space in the operating housing, effectively configuring each functional component in a limited size range, with fully considering the need of a variant, just only changing several modified parts without changing the operating housing. The transmission operating mechanism can be applied to various operational types and any combination among single pole, double poles, single H, double H, left operating, right operating, with booster, without booster and the like, therefore, the number of modified parts is effectively reduced, production cost and stock cost are reduced, and the misloading phenomenon caused by excessive peripheral parts is avoided.

Classes IPC  ?

• F16H 59/02 - Appareils de sélection

Abrégé

A front auxiliary box cylinder of an automobile transmission comprises a cylinder housing (1), a cylinder head (6), a piston (10), a seal ring (13), a fastening apparatus (11, 12) and a fork shaft (15). The cylinder housing (1) is disposed on a front end surface of a main box and in a clutch housing. The cylinder head (6) is fixedly connected to the cylinder housing (1) by a locking bolt. One end of the fork shaft (15) is connected to the piston (10), and the other end is disposed in the clutch housing or a fork shaft hole (16) of an upper cover of the transmission. A seal ring of the fork shaft and the cylinder housing can be replaced by sequentially dismounting the cylinder head, the piston and fastening apparatus, so as to solve the problem that the fork shaft needs to be dismounted to replace the seal ring.

Classes IPC  ?

• F16H 61/38 - Commande des transmissions exclusivement à fluide
• B60K 20/00 - Agencement ou montage sur les véhicules des dispositifs de commande des boîtes de changement de vitesses

Abrégé

A gear position detecting device of a secondary gearbox of a transmission. The device transmits a signal of the gear position of the secondary gearbox to a signal switch (5) by a step on a shifting fork (8) of the secondary gearbox or a step on a shifting fork shaft of the secondary gearbox. The signal switch (5) is arranged on the side of a back cover (7) and is lower than a maximum outline plane of the transmission. A step for pushing the signal switch (5) of the secondary gearbox is arranged on the shifting fork (8) or the shifting fork shaft of the secondary gearbox. Therefore, the signal of the gear position can be transmitted to the signal switch (5) by the shifting fork (8) or the shifting fork shaft of the secondary box so as to guide the driver.

Classes IPC  ?

• F16H 63/42 - Dispositifs indicateurs du rapport de vitesse

Abrégé

A lock pin-type automobile synchronizer includes a higher gear conical ring (1) and a lower gear conical ring (4) which are arranged at the sides of a sliding gear sleeve (3). A higher gear lock pin (2) is fixed to one side of the higher gear conical ring (1). A lower gear lock pin (5, 6) is fixed to one side of the lower gear conical ring (4). A pin hole corresponding to the higher gear (2) lock pin and the lower gear lock pin (5, 6) is arranged on the sliding gear sleeve (3). The number of lower gear lock pins (5, 6) is higher than the number of higher gear lock pins (2).

Classes IPC  ?

• F16D 13/30 - Embrayages à friction avec organes d'embrayage mobiles selon l'axe à surfaces de friction coniques dans lesquels l'organe ou chacun des organes mobiles selon l'axe est pressé exclusivement contre un organe situé dans l'axe avec moyens pour augmenter la force effective entre le manchon d'actionnement ou l'organe équivalent et l'organe de pression dans lesquels la pression d'embrayage est produite uniquement par des ressorts
• F16H 3/38 - Transmissions à engrenages pour transmettre un mouvement rotatif à rapport de vitesse variable ou pour inverser le mouvement rotatif sans engrenages à mouvement orbital utilisant exclusivement ou principalement des engrenages qui peuvent être désengrenés avec dispositif d'engrènement synchronisé

Produits et services

(1) Gearboxes; transmissions for motor vehicles; transmission gears for industrial machinery; torque converters; drive gears; motor vehicle engines; clutches for motor vehicles; drive shafts for motor vehicles; connecting rods for land vehicles; wheel bearings for motor vehicles.

Abrégé

A lock pin-type automobile synchronizer includes a higher gear conical ring (1) and a lower gear conical ring (4) which are arranged at the sides of a sliding gear sleeve (3). A higher gear lock pin (2) is fixed to one side of the higher gear conical ring (1). A lower gear lock pin (5, 6) is fixed to one side of the lower gear conical ring (4). A pin hole corresponding to the higher gear (2) lock pin and the lower gear lock pin (5, 6) is arranged on the sliding gear sleeve (3). The number of lower gear lock pins (5, 6) is higher than the number of higher gear lock pins (2).

Classes IPC  ?

• F16D 23/02 - Dispositions pour la synchronisation

Abrégé

A lock pin-type automobile synchronizer includes a higher gear conical ring (1) and a lower gear conical ring (4) which are arranged at the sides of a sliding gear sleeve (3). A higher gear lock pin (2) is fixed to one side of the higher gear conical ring (1). A lower gear lock pin (5, 6) is fixed to one side of the lower gear conical ring (4). A pin hole corresponding to the higher gear (2) lock pin and the lower gear lock pin (5, 6) is arranged on the sliding gear sleeve (3). The number of lower gear lock pins (5,6) is higher than the number of higher gear lock pins (2).

Classes IPC  ?

• F16D 23/02 - Dispositions pour la synchronisation

Produits et services

(1) Gearboxes; transmissions for motor vehicles; transmission gears for industrial machinery; torque converters; drive gears; motor vehicle engines; wheel bearings for motor vehicles; clutches for motor vehicles; roller bearings for motor vehicles; shock absorbers for motor vehicles.

Abrégé

A multi-speed compound vehicular transmission having an auxiliary section with three countershafts is composed of a main section and an auxiliary section. The main section includes an input shaft (1), a main shaft (40) and a number of synchronizers (39´). There are two countershafts (5) disposed symmetrically and equidistantly on two sides of the main shaft (40). The auxiliary section includes an auxiliary main shaft (25) and a synchronizer (23). The main shaft (25) is provided with a reduction gear (22). There are three countershafts (19) disposed parallel and distributed with equal distance around the main shaft (25). The output end of the auxiliary main shaft (25) is connected with a flange (26).

Classes IPC  ?

• B60K 17/08 - Agencement ou montage des transmissions sur les véhicules caractérisées par la disposition, l'emplacement ou le type de mécanisme de transmission du changement de vitesse du type mécanique
• F16H 3/02 - Transmissions à engrenages pour transmettre un mouvement rotatif à rapport de vitesse variable ou pour inverser le mouvement rotatif sans engrenages à mouvement orbital

Abrégé

A main section and auxiliary section type dual-countershaft twelve-speed transmission for vehicle is comprised of a main section and an auxiliary section. The main section includes a first shaft (1), a second shaft (10) and several countershafts (14) provided on both sides of the second shaft (10). There is gear drive provided between the second shaft and the countershaft. There are six gears on the second shaft, each of which is positioned independently. There are three synchronizers (4) on the second shaft. A shifting fork (5) of the synchronizer is connected to the control mechanism and gear lever by a fork shaft (16). A main shaft (20) and a countershaft (22) are provided in the auxiliary section. The gear (29) engages with the gear (28), and the gear (25) engages with the gear (30). A synchronizer (9), the shifting fork (15) and the fork shaft (31) are provided between the gear (25) and the gear (29). The synchronizer is self-locked by the reverse taper teeth. The fork shaft is self-locked by the mechanism composed of a spring (18) and a steel ball (19).

Classes IPC  ?

• B60K 17/08 - Agencement ou montage des transmissions sur les véhicules caractérisées par la disposition, l'emplacement ou le type de mécanisme de transmission du changement de vitesse du type mécanique
• F16H 61/00 - Fonctions internes aux unités de commande pour changements de vitesse ou pour mécanismes d'inversion des transmissions transmettant un mouvement rotatif

Produits et services

Gear boxes for land vehicles; transmissions for land vehicles; reduction gears for land vehicles; torque converters for land vehicles.