CN104295676B - Hydraulic control automatic transmission and hydraulic control speed change automobile - Google Patents

Abstract

The invention discloses a hydraulically controlled automatic transmission and a hydraulically controlled variable speed vehicle, wherein the hydraulically controlled automatic transmission comprises an input gear shaft assembly, a tower wheel assembly, a sleeve gear assembly for realizing changes in different gear positions, and a hydraulic clutch Plunger and output shaft assembly. The hydraulically controlled automatic transmission and the hydraulically controlled variable-speed automobile provided by the present invention, wherein the hydraulically controlled automatic transmission uses a hydraulic clutch plunger to realize the fastening and separation of the transmission mechanism and the final power output mechanism, and realizes the clutch through hydraulic control. The structure is simple and the operation is reliable , is also easy to process and manufacture.

Description

A hydraulically controlled automatic transmission and a hydraulically controlled shifting vehicle

technical field

The invention relates to the technical field of transmission manufacturing, in particular to a hydraulically controlled automatic transmission and a hydraulically controlled transmission vehicle.

Background technique

During the development of human society, with the mature development of various technologies, the transmission has been continuously developed and updated. The transmission is a transmission device that can change the transmission ratio of the output shaft and the input shaft in a fixed, stepless or step-by-step manner, also known as a gearbox.

In various fields where mechanical equipment is used, most of the systems that need to transmit speed and power need transmission devices. Especially in the automobile industry, all kinds of vehicles that use fuel as power must be equipped with a transmission to change speed without exception, so as to adapt to the needs of speed and power matching in different road conditions. Automobile transmission is to change the torque of the engine crankshaft by changing the transmission ratio, so as to adapt to the different needs of the traction force and vehicle speed of the driving wheels under different driving conditions such as starting, accelerating, driving and overcoming various road obstacles. Popularly divided into manual transmission (MT), automatic transmission (AT), manual / automatic transmission, continuously variable transmission.

For example: speed changer is generally made up of transmission mechanism and speed change mechanism, can be made into independent speed change mechanism or is combined with transmission mechanism in the same housing. Most of the transmission mechanisms are driven by ordinary gears, and some are driven by planetary gears. Ordinary gear transmission transmission mechanisms generally use slip gears and clutches. Sliding gears mainly include multiple sliding gears and single sliding gears.

However, most of the current automatic transmissions use many gears on parallel shafts or planetary gears for matching and shifting in structure, and corresponding multi-plate clutches need to be configured. Such as Volkswagen DSG dual-clutch gearbox, Volvo POWERSHIFT dual-clutch gearbox, Porsche PDK dual-clutch gearbox, Mitsubishi TC-SST dual-clutch gearbox, etc., all have similar structural forms. For example: refer to the technical content disclosed in the Volkswagen DSG dual-clutch gearbox in Figure 1a; in the above-mentioned structures, gears on parallel shafts or planetary gears are used for matching and shifting, so multi-disc clutches or synchronizers are necessary for cooperation; In this structure, the multi-plate clutch mainly plays the role of combining and separating the transmission, but the traditional gearbox equipped with multi-plate clutch or synchronizer is often complex in structure, and the parts in the transmission mechanism in the gearbox The quantity is large, and the dimensional accuracy and position accuracy of parts processing and manufacturing are required to be high (that is, the traditional transmission has high assembly accuracy requirements), which reduces production efficiency, increases production costs, and is inconvenient to use and maintain.

Contents of the invention

The object of the present invention is to provide a hydraulically controlled automatic transmission and a hydraulically controlled variable-speed automobile to solve the above problems.

In order to achieve the above object, the technical solution of the present invention is achieved in that:

A hydraulically controlled automatic transmission, including an input gear shaft assembly, a tower wheel assembly, a sleeve gear assembly for realizing different gear changes, a hydraulic clutch plunger, and an output shaft assembly, wherein:

The input gear shaft assembly includes a drive shaft and a drive gear sleeved on one end of the drive shaft;

The cone wheel assembly includes a driven shaft and several gear gears sleeved on the driven shaft; the driven shaft is meshed with the driving shaft through the driving gear;

One end of the output shaft assembly is a locking sleeve with a cavity wall, and the other end is a power output shaft; several hydraulic clutch plungers are built in the locking sleeve of the cavity wall on the output shaft assembly ;

The sleeve-type gear assembly includes several sleeves with smooth inner surfaces that are successively sleeved on the driving shaft, and one end of each sleeve is provided with a transmission gear, and the other end is provided with a hydraulic force bearing shaft; the sleeve-type The transmission gears on the shaft sleeves at different positions on the gear assembly mesh with the corresponding gear gears on the tower wheel assembly one by one, and the outer surface of the hydraulic pressure shaft is in contact with the output The end face bonding of several hydraulic clutch plungers built in the shaft assembly;

Wherein: the hydraulic clutch plunger on the output shaft assembly is used to protrude and position when subjected to hydraulic pressure and form a fast connection with the hydraulically stressed shaft on the sleeve gear assembly.

Preferably, as a possible implementation, the hydraulically controlled automatic transmission also includes a gearbox housing;

The input gear shaft assembly and the output shaft assembly respectively pass through both ends of the gearbox housing; and the drive shaft on the input gear shaft assembly and the power drive shaft on the output shaft assembly Output shaft coaxial setting;

Preferably, as a possible implementation, the input gear shaft assembly, the cone wheel assembly, the sleeve gear assembly, and the output shaft assembly are arranged in a row from left to right in the gearbox housing.

Preferably, as a possible embodiment, in the structure of the tower wheel assembly;

There are multiple tower wheel assemblies; multiple tower wheel assemblies are arranged and distributed around the drive shaft on the input gear shaft assembly; The driving shafts are arranged parallel to the drive shaft on the input gear shaft assembly.

Preferably, as a possible embodiment, in the structure of the tower wheel assembly;

The multiple gear gears on the cone wheel assembly are sequentially reduced or proportional to the transmission ratios of the transmission gears on the sleeves at different positions on the sleeve gear assembly corresponding to them one by one. is increasing.

Preferably, as a possible implementation, in the structure of the output shaft assembly;

The hydraulic pressure bearing shaft is a cylinder, and the outer surface of the cylinder is provided with a plurality of end faces at intervals of a certain arc surface; the multiple end faces on the hydraulic pressure bearing shaft are combined with the output shaft The positions of the end surfaces of several built-in hydraulic clutch plungers correspond to and fit together.

Preferably, as a possible implementation, in the structure of the output shaft assembly;

The hydraulic pressure receiving shaft can also be a regular prism, and the multiple end faces of the regular prism correspond to and fit with the end faces of several hydraulic clutch plungers built in the output shaft assembly.

Preferably, as a possible implementation, there are 6 end faces arranged along the outer surface of the hydraulically stressed shaft; There are 6 plungers, which correspond uniformly to the end faces.

Preferably, as a possible implementation, in the structure of the output shaft assembly;

One end of the output shaft assembly has a cavity wall locking bushing and the power output shaft at the other end is an integral structure;

Or one end of the output shaft assembly has a locking sleeve with a cavity wall and the power output shaft at the other end is a segmented structure, and the locking sleeve on the output shaft assembly is fixed to the power output shaft connect.

Correspondingly, the present invention also provides a hydraulically controlled transmission vehicle, including the above hydraulically controlled automatic transmission.

Compared with the prior art, the advantages of the embodiments of the present invention are:

The present invention provides a hydraulically controlled automatic transmission and a hydraulically controlled variable speed vehicle, wherein, analyzing the main structure of the hydraulically controlled automatic transmission provided by the present invention, it can be seen that the transmission is mainly composed of two parts: a transmission mechanism part and a speed change mechanism part; Among them, the transmission mechanism part includes the input gear shaft assembly, the cone wheel assembly, the sleeve gear assembly for realizing different gear changes, and the output shaft assembly; the transmission mechanism part mainly includes the above cone wheel assembly, sleeve type gear assembly;

When performing power transmission and output, the input gear shaft assembly is the main body of the power drive; wherein, the input gear shaft assembly includes a drive shaft and a drive gear sleeved on one end of the drive shaft; the cone wheel assembly includes a driven shaft and Several gears socketed on the driven shaft; the driven shaft and the driving shaft are meshed and connected through the driving gear;

First, the driving shaft on the input gear shaft assembly rotates, and drives the tower wheel assembly to follow through the driving gear sleeved at one end of the driving shaft; after that, the driven shaft on the tower wheel assembly rotates and drives several The gear gear rotates coaxially and synchronously;

In addition, the sleeve-type gear assembly includes several sleeves that are sequentially sleeved on the driving shaft, and one end (for example, the left end) of each sleeve is provided with a transmission gear, and the other end (for example, the right end) is provided with a hydraulic pressure shaft. ; The transmission gears on the bushing are meshed with different gear gears on the corresponding tower wheel assembly, and the outer surface of the hydraulic pressure shaft is in contact with the end faces of several hydraulic clutch plungers built in the output shaft assembly. One end of the output shaft assembly is a shaft sleeve with a cavity wall, and the other end is a power output shaft; several hydraulic clutch plungers are built in the shaft sleeve of the cavity wall on the output shaft assembly;

When the shift gear rotates, the corresponding sleeves on the sleeve gear combination that meshes with it one by one rotate; because there are different transmission ratios between different gears and the corresponding sleeves, the rotation of the sleeves has been realized. After that, the hydraulically stressed shafts at one end of the different shaft sleeves (for example, the right end) will also rotate accordingly; due to the different hydraulically stressed shafts on different shaft sleeves, they will be affected by several built-in output shaft assemblies. A hydraulic clutch plunger exerts a fastening effect, so if among several bushings, a certain hydraulic clutch plunger on the combination of the hydraulically stressed shaft and the output shaft on the current bushing (that is, the hydraulic clutch plunger is subjected to After the hydraulic pressure is applied), the current shaft sleeve drives the output shaft assembly to rotate synchronously, and finally the power after the speed change is output through the power output shaft at the other end of the output shaft assembly;

It can be seen that the hydraulically controlled automatic transmission provided by the present invention uses a hydraulic clutch plunger to fasten and separate the transmission mechanism from the final power output mechanism, and realizes clutching through hydraulic control. It has a simple structure, reliable operation, and is easy to manufacture.

In the hydraulically controlled automatic transmission provided by the present invention, the number of gears can be increased or decreased as required, and can satisfy the continuous shifting of multiple gears.

The hydraulically controlled automatic transmission provided by the present invention only needs the hydraulic system to pressurize and release the pressure on the hydraulic clutch plunger during the gear shifting process; when pressurized, it can be in gear, and when the pressure is released, it can be in neutral, which is convenient to realize The mechanical, electrical and hydraulic integration is automatically controlled, and the positions of all gears remain fixed throughout the process. Obviously, during the motion control process, the gear shifting becomes smoother and easier.

The hydraulically controlled automatic transmission provided by the present invention avoids the use of synchronizers or plate clutches and other complex transmission mechanisms. It uses hydraulic clutch plungers for clutching, which completely changes and subverts the structure of traditional clutches. Type gear combination, several gears are coaxially arranged, which not only simplifies the overall structure, but also facilitates processing and manufacturing. The hydraulically controlled automatic transmission provided by the present invention overcomes technical defects such as complex structure of the transmission transmission, large number of parts, high requirements on the dimensional accuracy and position accuracy of the processing and manufacturing of the parts, resulting in reduced production efficiency and inconvenient use and maintenance.

Similarly, the hydraulically controlled variable-speed vehicle provided by the present invention includes the use of the above-mentioned hydraulically controlled automatic transmission, and the hydraulically controlled variable-speed vehicle has the advantages of flexible and smooth transmission, simple and stable transmission structure, etc., and finally the above-mentioned hydraulically controlled automatic transmission realizes the driving of the vehicle. and perform shifting operations.

Description of drawings

Fig. 1a is a brief structural diagram of the Volkswagen DSG dual-clutch gearbox in the prior art;

Fig. 1 is a schematic sectional view of the main structure of a hydraulically controlled automatic transmission provided by the present invention;

Fig. 2 is a schematic cross-sectional view of the assembly structure of the hydraulic clutch plunger 7, the transmission housing 8, and the output shaft assembly 9 in the structure of the hydraulically controlled automatic transmission provided by the present invention;

3 is a schematic cross-sectional view of the assembly structure of the input gear shaft assembly 1, the cone wheel assembly 2, and the transmission housing 8 in the structure of the hydraulically controlled automatic transmission provided by the present invention;

4 is a schematic diagram of the assembly structure of the input gear shaft assembly 1 and the cone wheel assembly 2 in the structure of the hydraulically controlled automatic transmission provided by the present invention;

Fig. 5 is a schematic diagram of the detailed assembly structure of Fig. 4;

Fig. 6 is a schematic diagram of the part structure of a bushing of a bushing gear assembly 30 in the structure of the hydraulically controlled automatic transmission provided by the present invention;

Fig. 7 is a schematic diagram of the assembly structure of the sleeve gear assembly 30 formed after assembling a plurality of bushes in Fig. 6;

Fig. 8 is a schematic structural view of the parts of the output shaft assembly 9 in the structure of the hydraulically controlled automatic transmission provided by the present invention;

Fig. 9 is a schematic diagram of an exploded assembly structure of the input gear shaft assembly 1, the cone wheel assembly 2, the sleeve gear assembly 30, and the output shaft assembly 9 in the structure of the hydraulically controlled automatic transmission provided by the present invention;

Fig. 10 is a schematic diagram of a transmission route of gear I in a case of the present invention;

Fig. 11 is a schematic diagram of a case II gear transmission route of the present invention;

Fig. 12 is a schematic diagram of a gear transmission route of case III of the present invention;

Fig. 13 is a schematic diagram of a case IV gear transmission route of the present invention;

Fig. 14 is a schematic diagram of the transmission route of V gear in a case of the present invention;

Explanation of reference signs:

Input gear shaft assembly 1; driving shaft 11, driving gear 12;

Tower wheel assembly 2; driven shaft 20; in the structure of the tower wheel assembly: primary gear 21; IV gear 22; III gear 23; II gear 24; I gear 25;

Sleeve gear assembly 30; transmission gear 31; hydraulic pressure shaft 32;

I gear bushing 3;

II file shaft sleeve 4;

III gear bushing 5;

IV file shaft sleeve 6;

Hydraulic clutch plunger 7;

Transmission housing 8;

Output shaft assembly 9; locking sleeve 91; power output shaft 92.

detailed description

The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

Referring to Fig. 1, an embodiment of the present invention provides a hydraulically controlled automatic transmission, including an input gear shaft assembly 1, a cone wheel assembly 2, a sleeve gear assembly 30 for realizing different gear changes, and a hydraulic clutch plunger 7 and the output shaft assembly 9, wherein:

The input gear shaft assembly 1 includes a driving shaft 11 and a driving gear 12 socketed on one end of the driving shaft 11 (it should be noted that the socketing mode of the driving shaft 11 and the driving gear 12 is that the driving gear and the driving shaft For the fixed connection of the sleeve, it can realize the connection of the driving gear and the driving shaft by means of, for example, a key connection);

The tower wheel assembly 2 includes a driven shaft 20 and several gear gears sleeved on the driven shaft (that is, when there are 5 gear gears, the tower wheel assembly shown in Figure 1 One-stage gear 21 in; IV gear 22; III gear 23; II gear 24; I gear 25); said driven shaft 20 and said driving shaft 11 are meshedly connected by said driving gear 12 (specifically See the assembly structure of the input gear shaft assembly 1 and the cone wheel assembly 2 shown in Fig. 4 and Fig. 5);

One end of the output shaft assembly 9 is a locking sleeve 91 with a cavity wall, and the other end is a power output shaft 92 (refer to FIG. 1, or refer to 8 and FIG. 9); on the output shaft assembly 9 Several hydraulic clutch plungers 7 are built into the locking bushing 91 of the cavity wall;

The sleeve-type gear assembly 30 includes several bushes with smooth inner surfaces that are sequentially sleeved on the drive shaft 11 (that is, when the number of bushes is also 4 gears, that is, including the I gear bushing 3; the II gear shaft Sleeve 4; III gear sleeve 5; IV gear sleeve 6. Since the above-mentioned sleeve is a smooth structural part on the inner surface, the sleeve is not linked with the driving shaft, and it is only linked with the corresponding gear gear meshed at one end of the sleeve. ), and one end of each bushing is provided with a transmission gear 31, and the other end is provided with a hydraulically stressed shaft 32 (for the above structure, refer to the single bushing structure shown in Figure 6 and Figure 7, and the assembly of multiple bushings the structure of the gear assembly); the transmission gears on the bushes at different positions on the sleeve gear assembly 30 mesh with the different gear gears on the corresponding tower wheel assembly 2 one by one, The outer surface of the hydraulically stressed shaft is attached to the end faces of several hydraulic clutch plungers 7 built into the output shaft assembly 9;

Wherein: as shown in FIG. 1, the hydraulic clutch plunger 7 on the output shaft assembly 9 is used to protrude and position when subjected to hydraulic pressure and form a support for the sleeve gear assembly 30. The hydraulically stressed shaft 32 is tightly connected.

In the specific structural configuration, it has the following system structure layout and connection driving mode: The present invention provides a hydraulically controlled automatic transmission, the main components of which include an input gear shaft assembly 1, a cone wheel assembly 2, and sleeves for different gear positions. Type gear assembly 30, several hydraulic clutch plungers 7, output shaft assembly 9, and transmission case 8 etc.;

The above-mentioned hydraulic control automatic transmission provided by the present invention is mainly composed of a transmission mechanism part and a speed change mechanism part;

Among them, the transmission mechanism part includes the input gear shaft assembly 1, the cone wheel assembly 2, the sleeve gear assembly 30 for realizing different gear changes, and the output shaft assembly 9; the speed change mechanism part mainly includes the above sleeve type gear assembly 30;

Wherein, the input gear shaft assembly and the output shaft assembly respectively pass through both ends of the gearbox housing; and the drive shaft on the input gear shaft assembly and the output shaft assembly on the The power output shaft is arranged coaxially; wherein, the input gear shaft assembly, the cone wheel assembly, the sleeve gear assembly, and the output shaft assembly in the gearbox housing are arranged in a row from left to right. The position of the axis of the input gear shaft assembly (that is, the drive shaft) coincides with the position of the axis of the output shaft assembly (that is, the power output shaft), and is parallel to the axis of the cone wheel assembly, and the axis positions of multiple sets of cone wheel assemblies are uniform. Distributed on a circle centered on the axis of the input gear shaft and the axis of the output shaft assembly. The sleeve-type gear assemblies of different gear positions are arranged coaxially on the outer circle of the input gear shaft sequentially, taking the axis of the input gear shaft assembly as a reference. Apparently, the above-mentioned structure has the advantages of simple layout, small volume, low manufacturing cost and stable speed change. In addition, the hydraulically controlled automatic transmission provided in the embodiment of the present invention is not limited to the above-mentioned structural arrangement and layout, and other structural layouts will not be described one by one.

In the actual process of power transmission and speed change, since each group of hydraulic clutch plungers corresponds to the hydraulic stress axis of the sleeve of the corresponding sleeve gear assembly, it is evenly distributed on the circumference in the radial direction. When the hydraulically stressed shaft on the shaft sleeve corresponding to a certain gear position on the sleeve gear assembly is squeezed by the hydraulic clutch plunger of the output shaft assembly (that is, the hydraulic clutch plunger will be aligned with the gear position after hydraulic pressurization control) The gear is fastened, and then the gear is realized); the motion is transmitted to the tower wheel assembly through the driving gear on the input gear shaft assembly, and the bushing of the corresponding gear selected by a certain gear gear in the tower wheel assembly rotates, Finally, the sleeve gear is transmitted to the output shaft assembly to realize the speed and power transmission from input to output. When direct transmission of speed and power is used, after the corresponding hydraulic clutch plunger is hydraulically controlled and pressurized, the speed and power transmission from input to output can be completed only through the combination of the input gear shaft and the output shaft.

The basic working principle of the present invention is that when a certain gear is required to transmit power, hydraulic pressure is applied to the hydraulic clutch plunger of a certain gear, and the power can be input through the gear shaft assembly 1 and the tower wheel assembly 2 Corresponding gears in the gear, the corresponding shaft sleeves in the sleeve gear combination 30 (that is, when the number of shaft sleeves is also 4 gears, it includes the I gear sleeve 3; the II gear sleeve 4; the III gear sleeve 5; the IV The gear shaft sleeve 6), the corresponding hydraulic clutch plunger 7, and the output shaft assembly 9 output the power to complete the transmission process of power from input to output and the transmission of mechanical energy (mainly including the transmission torque and the speed after speed regulation);

The specific description is as follows:

1. When the hydraulic pressure is applied to the hydraulic clutch plunger corresponding to the I gear, the power transmission route is shown in Figure 10, that is, through the I gear 25 and the I gear in the input gear shaft assembly 1 and the tower wheel assembly 2. Gear shaft sleeve 3, hydraulic clutch plunger 7, output shaft assembly 9 output power;

2. When the hydraulic pressure is applied to the hydraulic clutch plunger corresponding to the II gear position, the power transmission route is shown in Figure 11, that is, through the input shaft gear assembly 1 and the tower wheel assembly 2 in the II gear 24, II gear Shaft sleeve 4, hydraulic clutch plunger 7, output shaft assembly 9 output power;

3. When the hydraulic pressure is applied to the hydraulic clutch plunger corresponding to the III gear position, the power transmission route is shown in Figure 12, that is, through the input shaft gear assembly 1, the gear assembly 2 of the III gear 23, and the III gear Shaft sleeve 5, hydraulic clutch plunger 7, output shaft assembly 9 output power;

4. When the hydraulic pressure is applied to the hydraulic clutch plunger corresponding to the IV gear position, the power transmission route is shown in Figure 13, that is, through the input shaft gear assembly 1 and the tower wheel assembly 2 in the IV gear 22, IV gear Shaft sleeve 6, hydraulic clutch plunger 7, output shaft assembly 9 output power;

5. When the hydraulic pressure is applied to the hydraulic clutch plunger corresponding to the V gear position, the power transmission route is shown in Figure 14, that is, the power is output through the input shaft gear assembly 1, the hydraulic clutch plunger 7, and the output shaft assembly 9 .

The specific structure of the hydraulically controlled automatic transmission provided by the embodiment of the present invention is described in detail below:

In the structure of the tower wheel assembly;

The tower wheel assembly is multiple (for example: include 2, as a preferred solution can be two); a plurality of the tower wheel assembly are arranged and distributed around the drive shaft on the input gear shaft assembly ; and the driven shafts in the plurality of tower wheel assembly structures are arranged in parallel with the driving shaft on the input gear shaft assembly.

It should be noted that the tower wheel assembly in the structure of the hydraulically controlled automatic transmission provided by the embodiment of the present invention is only a structural assembly for realizing speed change adjustment, and it can be distributed in multiple arrangements around the input gear shaft assembly. A tower wheel combination is conducive to smooth and smooth power transmission.

In the structure of the tower wheel assembly;

The multiple gear gears on the cone wheel assembly are sequentially reduced or proportional to the transmission ratios of the transmission gears on the sleeves at different positions on the sleeve gear assembly corresponding to them one by one. is increasing.

It should be noted that the above-mentioned cone-wheel combination is designed by several gears according to the transmission ratio of the transmission gears on the relative shaft sleeves, which can include various forms of structures; for example, the cone-wheel combination The gear gear in the body can be a combination of several gears whose number of teeth decreases successively, and can also be made into a multi-connected gear form. The mechanical gearbox mainly applies the deceleration principle of gear transmission. Simply put, there are multiple sets of gear pairs with different transmission ratios in the gearbox, and the shifting behavior when the car is running is to make different gear pairs in the gearbox work through the operating mechanism. For example, at low speed, let the gear pair with large transmission ratio work, and at high speed, let the gear pair with small transmission ratio work.

In the structure of the output shaft assembly;

The hydraulic pressure bearing shaft is a cylinder, and the outer surface of the cylinder is provided with a plurality of end faces at intervals of a certain arc surface; the multiple end faces on the hydraulic pressure bearing shaft are combined with the output shaft The positions of the end surfaces of several built-in hydraulic clutch plungers correspond to and fit together.

It should be noted that the sleeves on the sleeve-type gear shaft assembly are rotatably sleeved on the driving shaft in sequence, and the left end of each sleeve drives the gear, and the right end is a hydraulic force shaft (that is, a polygonal circle); and At the same time, the hydraulically stressed shaft is a cylinder, and the outer surface of the cylinder is provided with a plurality of end faces (preferably 6 end faces, compared to the present invention, which does not specifically limit the number); As a key structure, the multiple end faces on different hydraulically stressed shafts on different shaft sleeves correspond to and fit with the end faces of a set of hydraulic clutch plungers built in the output shaft assembly; such a As long as the hydraulic clutch plunger is pressurized and stretched out to squeeze the corresponding hydraulic force shaft of a certain bushing to achieve coaxial rotation, the output shaft assembly and the sleeve gear shaft assembly will finally be mechanically linked, that is, gear . Conversely, neutral in that gear is achieved after the hydraulic clutch plunger is depressurized. The neutral position is realized, that is, the hydraulic clutch plunger is separated from the hydraulic force bearing shaft, and the gearbox does not output power at this time.

Preferably, as another possible implementation, in the structure of the output shaft assembly; the hydraulically stressed shaft can also be a regular prism, and the multiple end faces of the regular prism are connected to the output shaft The positions of the end faces of several hydraulic clutch plungers built in the combination correspond to and fit together.

It should be noted that two faces are parallel to each other, and the other faces are quadrilaterals, and the common sides of every two adjacent quadrilaterals are parallel to each other. The geometry surrounded by these faces is called a prism. In the preferred technical solution of the embodiment of the present invention, the hydraulic force axis can also be a regular prism (that is, a right prism whose base is a regular polygon is called a regular prism.), and the sides of the regular prism are 6 optimal, each The hydraulically stressed shaft in the shape of a regular prism at one end of the sleeve can also be fastened and attached to and separated from the hydraulic clutch plunger (that is, to play a clutching role).

There are 6 end faces arranged along the outer surface of the hydraulically stressed shaft; and there are 6 hydraulic clutch plungers built on the same circumferential surface on the cavity wall of the output shaft assembly, and are connected with the The end faces are in one-to-one correspondence.

Preferably, as a possible implementation, in the structure of the output shaft assembly;

One end of the output shaft assembly has a shaft sleeve with a cavity wall and a power output shaft at the other end as an integral structure;

Or the shaft sleeve with a cavity wall at one end of the output shaft assembly and the power output shaft at the other end have a segmented structure, and the shaft sleeve on the output shaft assembly is fixedly connected to the power output shaft. That is to say, the left end of the above-mentioned output shaft assembly is provided with a shaft sleeve for installing a hydraulic clutch plunger (the radial cylindrical hole on the inner cavity wall of the shaft sleeve is used for a built-in hydraulic clutch plunger), and the right end is provided with a power output shaft. It can be a whole structure or a composite structure.

Correspondingly, the embodiment of the present invention also provides a hydraulically controlled variable-speed vehicle, which includes the above-mentioned hydraulically controlled automatic transmission, wherein the input gear shaft assembly 1 in the structure of the above-mentioned hydraulically controlled automatic transmission will realize mechanical linkage with the engine mechanism ( For example: in the fuel engine structure, due to the deflagration effect of the combustion chamber, the head of the piston can be pushed to reciprocate in the combustion chamber, and the protruding end of the piston realizes the rotational power output through the eccentric mechanism (or the corresponding crankshaft rotation of the coaxially connected flywheel) to the drive shaft of the input gear shaft assembly 1), after the above-mentioned hydraulically controlled automatic transmission shifting action, finally rely on the power output shaft output shifting power on the output shaft assembly 9 (the power output shaft finally passes the power through the automobile transmission system) output down). The hydraulically controlled transmission vehicle provided by the embodiment of the present invention has the advantages of flexible and smooth transmission, simple and stable transmission structure, etc. The above-mentioned hydraulically controlled automatic transmission realizes the driving of the vehicle and the operation of gear shifting.

To sum up, in the hydraulically controlled automatic transmission provided by the present invention, the number of gears can be increased or decreased according to needs, which can satisfy the continuous shifting of multiple gears.

The hydraulically controlled automatic transmission provided by the present invention only needs the hydraulic system to pressurize and release the pressure on the hydraulic clutch plunger during the gear shifting process; when pressurized, it can be in gear, and when the pressure is released, it can be in neutral, which is convenient to realize The mechanical, electrical and hydraulic integration is automatically controlled, and the positions of all gears remain fixed throughout the process. Obviously, during the motion control process, the gear shifting becomes smoother and easier.

The hydraulically controlled automatic transmission provided by the present invention avoids the use of synchronizers or plate clutches and other complex transmission mechanisms. It uses hydraulic clutch plungers for clutching, which completely changes and subverts the structure of traditional clutches. Type gear combination, several gears are coaxially arranged, which not only simplifies the overall structure, but also facilitates processing and manufacturing. The hydraulically controlled automatic transmission provided by the present invention overcomes technical defects such as complex structure of the transmission transmission, large number of parts, high requirements on the dimensional accuracy and position accuracy of the processing and manufacturing of the parts, resulting in reduced production efficiency and inconvenient use and maintenance.

Similarly, the hydraulically controlled variable-speed vehicle provided by the present invention includes the use of the above-mentioned hydraulically controlled automatic transmission, and the hydraulically controlled variable-speed vehicle has the advantages of flexible and smooth transmission, simple and stable transmission structure, etc., and finally the above-mentioned hydraulically controlled automatic transmission realizes the driving of the vehicle. and perform shifting operations.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (8)

1. A hydraulic control automatic transmission, characterized in that, It includes the input gear shaft assembly, the tower wheel assembly, the sleeve gear assembly for realizing different gear changes, the hydraulic clutch plunger and the output shaft assembly, of which: The input gear shaft assembly includes a drive shaft and a drive gear sleeved on one end of the drive shaft; The cone wheel assembly includes a driven shaft and several gear gears sleeved on the driven shaft; the driven shaft is meshed with the driving shaft through the driving gear; One end of the output shaft assembly is a locking sleeve with a cavity wall, and the other end is a power output shaft; several hydraulic clutch plungers are built in the locking sleeve of the cavity wall on the output shaft assembly ; The sleeve-type gear assembly includes several sleeves with smooth inner surfaces that are successively sleeved on the driving shaft, and one end of each sleeve is provided with a transmission gear, and the other end is provided with a hydraulic force bearing shaft; the sleeve-type The transmission gears on the shaft sleeves at different positions on the gear assembly mesh with the corresponding gear gears on the tower wheel assembly one by one, and the outer surface of the hydraulic pressure shaft is in contact with the output The end face bonding of several hydraulic clutch plungers built in the shaft assembly; Wherein: the hydraulic clutch plunger on the output shaft assembly is used to protrude and position when subjected to hydraulic pressure and form a fastened connection to the hydraulically stressed shaft on the sleeve gear assembly; There are multiple tower wheel assemblies; multiple tower wheel assemblies are arranged and distributed around the drive shaft on the input gear shaft assembly; The moving shafts are arranged parallel to the driving shaft on the input gear shaft assembly; The multiple gear gears on the cone wheel assembly are sequentially reduced or proportional to the transmission ratios of the transmission gears on the sleeves at different positions on the sleeve gear assembly corresponding to them one by one. is increasing. 2. The hydraulically controlled automatic transmission of claim 1, wherein: Also includes gearbox housing; The input gear shaft assembly and the output shaft assembly respectively pass through both ends of the gearbox housing; and the drive shaft on the input gear shaft assembly and the power drive shaft on the output shaft assembly The output shaft is set coaxially. 3. The hydraulically controlled automatic transmission of claim 2, wherein: The input gear shaft assembly, the tower wheel assembly, the sleeve gear assembly, and the output shaft assembly in the gearbox housing are arranged in a row from left to right. 4. The hydraulically controlled automatic transmission of claim 1, wherein: In the structure of the output shaft assembly, The hydraulic pressure bearing shaft is a cylinder, and the outer surface of the cylinder is provided with a plurality of end faces at intervals of a certain arc surface; the multiple end faces on the hydraulic pressure bearing shaft are combined with the output shaft The positions of the end surfaces of several built-in hydraulic clutch plungers correspond to and fit together. 5. The hydraulically controlled automatic transmission of claim 1, wherein: In the structure of the output shaft assembly, The hydraulic pressure receiving shaft can also be a regular prism, and the multiple end faces of the regular prism correspond to and fit with the end faces of several hydraulic clutch plungers built in the output shaft assembly. 6. The hydraulically controlled automatic transmission of claim 1, wherein: There are 6 end faces arranged along the outer surface of the hydraulically stressed shaft; and there are 6 hydraulic clutch plungers built on the same circumferential surface on the cavity wall of the output shaft assembly, and are connected with the The end faces are in one-to-one correspondence. 7. The hydraulically controlled automatic transmission of claim 1, wherein: In the structure of the output shaft assembly, One end of the output shaft assembly has a cavity wall locking bushing and the power output shaft at the other end is an integral structure; Or one end of the output shaft assembly has a locking sleeve with a cavity wall and the power output shaft at the other end is a segmented structure, and the locking sleeve on the output shaft assembly is fixed to the power output shaft connect. 8. A hydraulically controlled variable speed vehicle, characterized in that, The hydraulic control automatic transmission as claimed in any one of claims 1-7 is included.