CN113062968B - Universal integrated air passage arrangement structure of automatic gearbox and application method thereof - Google Patents
Universal integrated air passage arrangement structure of automatic gearbox and application method thereof Download PDFInfo
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- CN113062968B CN113062968B CN202110287282.8A CN202110287282A CN113062968B CN 113062968 B CN113062968 B CN 113062968B CN 202110287282 A CN202110287282 A CN 202110287282A CN 113062968 B CN113062968 B CN 113062968B
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- air
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- front shell
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H2057/02017—Gearboxes; Mounting gearing therein characterised by special features related to the manufacturing of the gear case, e.g. special adaptations for casting
Abstract
The invention provides a universal integrated air passage arrangement structure of an automatic gearbox and an application method thereof, belonging to the technical field of automobile manufacturing. One end of the first air passage reserved structure and one end of the second air passage reserved structure face the outer peripheral face of the front shell of the gearbox respectively, and the other ends of the first air passage reserved structure and the second air passage reserved structure are located in the first installation position respectively. One end of the fourth air passage reserved structure is located on the inner side face of the front shell of the gearbox, and the other end of the fourth air passage reserved structure is located on the outer side face of the front shell of the gearbox except the first installation position. The invention has the beneficial effects that: through the integrated general design of the clutch actuator and the brake air inlet channel, the installation matching requirements of the clutch actuator and the brake of different types (different manufacturers) can be met, the interference risk of an air passage inside the front shell of the gearbox is reduced, and the manufacturing cost is reduced.
Description
Technical Field
The application relates to the technical field of automobile manufacturing, in particular to an automatic Transmission (AMT) generalized integrated air passage arrangement structure and an application method thereof.
Background
With the development of the automobile transmission of the domestic commercial vehicle, the comfort and the simplicity of operation are more and more emphasized by the market, so that the AMT transmission is well developed. The AMT gearbox is improved on the basis of the traditional manual gear type transmission; the mechanical-electrical-hydraulic integrated automatic transmission combines the advantages of AT and MT; the AMT has the advantages of automatic speed change of a common automatic transmission, and retains the advantages of high transmission efficiency, low cost, simple structure and easiness in manufacturing of the original manual transmission. Under the condition that the overall transmission structure of the mechanical gearbox is not changed, the automation of gear shifting is realized by additionally arranging an automatic control system controlled by a microcomputer. Therefore, the AMT actually completes the working process of operating the clutch, selecting and shifting gears by an automatic gear shifting system, and as the AMT gearbox is modified on the existing manual transmission, most of the original assembly components are reserved, only the gear shifting rod part of the manual operating system is changed, the production succession is good, the modification investment cost is low, and the AMT is very easy to accept by manufacturers.
As shown in fig. 1, in the clutch actuator air passage arrangement and brake air passage arrangement of the existing AMT gearbox, a clutch actuator (only a clutch actuator mounting interface a2 is illustrated in fig. 1, and a clutch actuator is not illustrated) and a brake a3 of the AMT gearbox are fixedly mounted on a gearbox front shell a1, and the clutch actuator and the brake a3 need to introduce an air source with a certain pressure to work normally. The existing air sources of the clutch actuator and the brake a3 need to be introduced into a vehicle air source through an AMT gearbox shift actuator (the shift actuator is not shown in fig. 1), and then the air sources are distributed in the clutch actuator and the brake a3 through the shift actuator (the shift actuator can control the on-off of the air sources), the air source transmission between the shift actuator and the clutch actuator and the brake a3 is transmitted through a clutch actuator air inlet pipe assembly a4 and a brake air inlet pipe assembly a5, the clutch actuator air inlet pipe assembly a4 and the brake air inlet pipe assembly a5 are both pipelines exposed outside a transmission front shell a1, and the clutch actuator air inlet pipe assembly a4 and the brake air inlet pipe assembly a5 both obtain the air sources through air passages in the transmission front shell a1 and respectively transmit the air sources to the clutch actuator and the brake a 3.
The clutch actuator air inlet pipe assembly a4 and the brake air inlet pipe assembly a5 are specially designed air inlet pipe assemblies, one end of each air inlet pipe assembly is fixedly installed on a front shell a1 of the gearbox, the other end of each air inlet pipe assembly is installed on the clutch actuator and the brake a3 respectively, and the positions, the number and the structures of the air inlet pipe assemblies are fixed.
The air passage arrangement of a clutch actuator and an air passage arrangement of a brake of the conventional AMT have the following defects:
(1) the air inlet channel of the clutch actuator and the air inlet channel of the brake are fixedly arranged, and when the clutch actuator and the brake of different models (or different manufacturers) are matched, the air inlet channel structure is difficult to adjust, an air inlet pipe assembly needs to be redesigned, or the structural design of a front shell of a gearbox needs to be adjusted, so that the design change is complex and the cost is high.
(2) The space of the inner cavity of the front shell of the gearbox is narrow, the air pipe in the cavity is difficult to arrange, the arrangement has interference risk, and the manufacturing cost of the special air inlet pipe assembly is increased.
Disclosure of Invention
Aiming at the defects in the prior art, the application aims to provide a generalized integrated air passage arrangement structure of an automatic gearbox and an application method thereof, under the condition that the appearance structures and installation interfaces of a clutch actuator and a brake assembly are not changed, the installation matching requirements of clutch actuators and brakes of different types (different manufacturers) can be met through the generalized integrated design of the clutch actuator and a brake air inlet channel, the interference risk of an air passage in a front shell of the gearbox is reduced, and the manufacturing cost is reduced.
The first aspect of the application provides a generalized integrated air channel arrangement structure of an automatic gearbox, which comprises a gearbox front shell and a gearbox middle shell which are arranged together, wherein a first installation position for installing a clutch actuator and a second installation position for installing a brake are arranged on the outer side surface, far away from the gearbox middle shell, of the gearbox front shell; the gearbox front shell is provided with a first air passage reserved structure, a second air passage reserved structure, a third air passage reserved structure, a fourth air passage reserved structure and a plurality of process holes for air passage processing which are integrally formed;
the first air passage reserved structure and the fourth air passage reserved structure are positioned on two sides of the second air passage reserved structure, and the first air passage reserved structure is provided with a third air passage reserved structure;
one end of the first air passage reserved structure and one end of the second air passage reserved structure face the outer peripheral surface of the front shell of the gearbox respectively, and the other ends of the first air passage reserved structure and the second air passage reserved structure are located at a first installation position respectively;
one end of the fourth air passage reserved structure is located on the inner side face of the front shell of the gearbox, and the other end of the fourth air passage reserved structure is located on the outer side face of the front shell of the gearbox except the first installation position.
In some embodiments, the first mounting position is located above the second mounting position on the outer side surface of the front shell of the gearbox, and the first air passage reservation structure, the second air passage reservation structure, the third air passage reservation structure and the fourth air passage reservation structure are located above the first mounting position.
In some embodiments, three pairs of contact holes which are mutually butted are formed in two inner side surfaces of the front gearbox shell and the middle gearbox shell which are mutually contacted;
three contact holes on the front shell of the gearbox are respectively contacted with the first air passage reserved structure, the second air passage reserved structure and the fourth air passage reserved structure;
three contact holes on the gearbox middle shell are respectively used for being in butt joint with a gear shifting actuator.
In some embodiments, the first air duct reservation structure is at least partially exposed on the outer side surface of the front shell of the gearbox; and
the second air passage reserved structure is at least partially exposed on the outer side surface of the front shell of the gearbox; and
one end of the fourth air passage reserved structure is exposed on the outer side face of the front shell of the gearbox, and the other end of the fourth air passage reserved structure is exposed on the inner side face of the front shell of the gearbox.
In some embodiments, one end of the third air passage reservation structure is exposed on the outer side surface of the front shell of the transmission case, and the other end of the third air passage reservation structure is located inside the first air passage reservation structure.
The application provides an application method of a universal integrated air channel arrangement structure of an automatic gearbox, and the application method comprises the following steps:
processing according to the structural characteristics of the clutch actuator and the brake to obtain an air inlet channel processing strategy;
according to an air inlet channel machining strategy, air channel machining is carried out on at least one of the first air channel reserved structure and the second air channel reserved structure through at least one process hole to form an air inlet channel used for supplying air to the clutch actuator, and air channel machining is carried out on at least one of the third air channel reserved structure and the fourth air channel reserved structure through at least one process hole to form an air inlet channel used for supplying air to the brake;
when the third air passage reserved structure is subjected to air passage processing, the first air passage reserved structure is subjected to air passage processing to form a first air passage, and then the third air passage reserved structure is subjected to air passage processing to form a third air passage communicated with the first air passage.
In some embodiments, the structural characteristics of the clutch actuator include clutch actuator cylinder diameter size;
the structural features of the brake include a brake air inlet interface orientation.
In some embodiments, the processing strategy comprises:
when the automatic gearbox is provided with a clutch actuator with a small cylinder diameter and an air inlet interface of the brake faces to the left, the first air passage reserved structure, the second air passage reserved structure and the third air passage reserved structure are processed through the process holes to form a corresponding first air passage, a second air passage and a third air passage, and the third air passage is communicated with the second air passage;
the contact holes corresponding to the positions of the first air passage and the second air passage on the inner surface of the front shell of the transmission respectively transmit an air source transmitted by the middle shell of the transmission to the first air passage and the second air passage, the second air passage transmits the air source to the third air passage, the first air passage is used for transmitting the air source to the clutch brake, and the third air passage is used for transmitting the air source to the brake.
In some embodiments, the processing strategy comprises:
when the automatic gearbox is provided with a clutch actuator with a small cylinder diameter and an air inlet interface of the brake faces right, the second air passage reserved structure and the fourth air passage reserved structure are processed through the process holes to form a corresponding second air passage and a corresponding fourth air passage;
and contact holes corresponding to the positions of the second air passage and the fourth air passage on the inner surface of the front shell of the transmission respectively transmit the air source transmitted by the middle shell of the transmission to the second air passage and the fourth air passage, the second air passage is used for transmitting the air source to the clutch brake, and the fourth air passage is used for transmitting the air source to the brake.
In some embodiments, the processing strategy comprises:
when the clutch actuator with a large cylinder diameter is installed on the automatic gearbox, air passages are processed on the first air passage reserved structure and the fourth air passage reserved structure through the process holes to form a corresponding first air passage and a corresponding fourth air passage;
and contact holes corresponding to the positions of the first air passage and the fourth air passage on the inner surface of the front shell of the transmission respectively transmit the air source transmitted by the middle shell of the transmission to the first air passage and the fourth air passage, the first air passage is used for transmitting the air source to the clutch brake, and the fourth air passage is used for transmitting the air source to the brake.
The beneficial effect that technical scheme that this application provided brought includes:
1. a plurality of air flue structures are reserved when the shell is poured before the gearbox, the air flue that satisfies different matching requirements and installation requirements is obtained through the alternative processing air flue reservation structure of fabrication hole in the later stage, and the later stage can satisfy the matching requirements and the installation requirements of different models (different manufacturers) clutch executor and brake assembly under the condition of not adjusting casing design and intake pipe assembly structure, realizes that the air flue is rational in infrastructure, arrange in a flexible way, reduces development cost, shortens development time.
2. A plurality of air flue structures reserved are directly integrated and processed on the front shell of the gearbox, and manufacturing cost is reduced.
3. The clutch actuator air inlet pipe assembly externally connected to the front shell of the gearbox in the prior art is omitted, a plurality of reserved air channel structures are directly integrated and processed on the front shell of the gearbox, part of the air channel structures which are used for supplying air to the brake after being processed are integrated on the air channel structures which are used for supplying air to the clutch actuator after being processed, the air channel design is flexibly configured, the requirement is met by the minimum number of air channels, mutual interference between the air channels in the front shell of the gearbox when different models (different manufacturers) of clutch actuators and brakes are matched is avoided, and difficulty in installation of parts and the gearbox is avoided.
Drawings
FIG. 1 is a schematic diagram of a clutch actuator air passage arrangement and a brake air passage arrangement of a prior art automatic transmission.
FIG. 2 is a schematic diagram of a generalized integrated air path arrangement for an automatic transmission in accordance with a preferred embodiment of the present invention;
FIG. 3 is a side view of an automated transmission generalized integrated airway arrangement.
Fig. 4 is a view from another perspective of fig. 2.
Fig. 5 is a view from another perspective of fig. 2.
Reference numerals are as follows:
1-a front shell of a gearbox, 2-a middle shell of the gearbox, 3-a first installation position, 4-a second installation position, and 5-a first air passage reserved structure; 6-a second air passage reservation structure; 7-a third air passage reservation structure; 8-a fourth gas channel reservation structure; 9-fabrication holes; 10-contact holes; 11-bolt holes; 12-reinforcing ribs; 13-a first air inlet; 14-second air inlet.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples.
Referring to fig. 2 and 3, the embodiment of the application provides a generalized integrated air passage arrangement structure for an automatic transmission, which includes a transmission front shell 1 and a transmission middle shell 2, wherein the transmission front shell 1 and the transmission middle shell 2 are installed together, a gear shifting actuator sends an air source into the transmission middle shell 2, the transmission middle shell 2 sends the air source into the transmission front shell 1, the transmission front shell 1 is cast by an integral forming method in advance when the shell is cast, and the air source is respectively sent into a clutch actuator and a brake by a plurality of air passages processed by an air passage processing method when the shell is used.
The outer side surface of the gearbox front shell 1 far away from the gearbox middle shell 2 is provided with a first mounting position 3 for mounting a clutch actuator and a second mounting position 4 for mounting a brake.
The gearbox front shell 1 is provided with a first air passage reserved structure 5, a second air passage reserved structure 6, a third air passage reserved structure 7, a fourth air passage reserved structure 8 and a plurality of process holes 9 for air passage processing which are integrally formed. Can carry out the air flue processing to first air flue preformed structure 5, second air flue preformed structure 6, third air flue preformed structure 7 and fourth air flue preformed structure 8 according to the matching requirement and the installation demand selectivity of different models (different producers) clutch executor and stopper assembly through fabrication hole 9, first air flue preformed structure 5 can form first air flue after the air flue processing, second air flue preformed structure 6 can form the second air flue after the air flue processing, third air flue preformed structure 7 can form the third air flue after the air flue processing, fourth air flue preformed structure 8 can form the fourth air flue after the air flue processing. The first and second air passages may be used to mate the clutch actuator and the third and fourth air passages may be used to mate the brake.
First air flue reserved structure 5 and fourth air flue reserved structure 8 are located the both sides of second air flue reserved structure 6, are equipped with third air flue reserved structure 7 on the first air flue reserved structure 5 (if set up third air flue reserved structure on second air flue reserved structure, then the stopper intake pipe is arranged and can be difficult, leads to stopper intake pipe turn amplitude too big influence response speed that admits air, and produces easily and interfere with clutch executor intake pipe). When the air passage processing is needed to be carried out on the third air passage, the first air passage reserved structure 5 is processed to obtain the first air passage, then the air passage processing is carried out on the first air passage to obtain the third air passage, the first air passage is communicated with the third air passage, and the air source is sent into the third air passage through the first air passage after being sent into the front gearbox shell 1 from the middle gearbox shell 2.
One end of the first air passage reservation structure 5 and one end of the second air passage reservation structure 6 face the outer peripheral surface of the front gearbox shell 1 respectively, and the other ends of the first air passage reservation structure 5 and the second air passage reservation structure 6 are located at the first mounting position 3 respectively (the end of the first air passage reservation structure 5 located at the first mounting position 3 is a first air inlet 13 in fig. 2, and the end of the second air passage reservation structure 6 located at the first mounting position 3 is a second air inlet 14 in fig. 2. the first air passage reservation structure 5 is processed into a first air passage and then connected with a clutch actuator through the first air inlet 13, and the second air passage reservation structure 6 is processed into a second air passage and then connected with the clutch actuator through the second air inlet 14). The end, facing the outer peripheral surface of the gearbox front shell 1, of the first air passage reserved structure 5 and the end, facing the outer peripheral surface of the gearbox front shell 1, of the second air passage reserved structure 6 can be exposed out of the outer peripheral surface, a fabrication hole 9, formed by air passage machining of the first air passage reserved structure 5 and the second air passage reserved structure 6 to form an air inlet channel for air supply of the clutch actuator, can also be arranged on the outer peripheral surface of the gearbox front shell 1 according to matching requirements and installation requirements of the clutch actuator in use, and the position of the fabrication hole 9 can correspond to the position of the end, facing the outer peripheral surface of the gearbox front shell 1, of the first air passage reserved structure 5 and the second structure reserved structure.
Both ends of the third air passage reservation structure 7 are located on the first air passage reservation structure 5, and the third air passage reservation structure 7 may be perpendicular to the first air passage reservation structure 5.
One end of the fourth air passage reserved structure 8 is located on the inner side face of the front shell 1 of the gearbox, and the other end of the fourth air passage reserved structure is located on the outer side face of the front shell 1 of the gearbox except the first installation position 3. The fabrication hole 9 for selectively processing the fourth air passage reservation structure 8 into the air inlet channel for supplying air to the brake according to the matching requirement and the installation requirement of the brake when in use can also be arranged on the inner side surface of the front gearbox shell 1 or the outer peripheral surface of the front gearbox shell 1, and the position of the fabrication hole 9 needs to meet the requirement of processing the fourth air passage reservation structure 8 into the fourth air passage.
In this embodiment, air passage structures (i.e., the first air passage reservation structure 5, the second air passage reservation structure 6, the third air passage reservation structure 7, and the fourth air passage reservation structure 8) and a plurality of process holes 9 for processing air passages are reserved in a casting blank design of the front shell 1 of the transmission, a first air inlet 13 and a second air inlet 14 are reserved in the design, the plurality of air passage structures (i.e., the first air passage reservation structure 5, the second air passage reservation structure 6, the third air passage reservation structure 7, and the fourth air passage reservation structure 8) reserved in the casting of the front shell 1 of the transmission can be selectively processed through the plurality of process holes 9 in a later stage to obtain air passages meeting different matching requirements and installation requirements, and the first air passage reservation structure 5, which is used for being respectively connected with a clutch actuator and a brake in a matching manner, can be used in the later stage without adjusting a shell design and an air inlet pipe assembly structure (i.e., the front shell 1 of the transmission is used for being respectively connected with the clutch actuator and the brake in a matching manner, Second air passage reservation structure 6, third air passage reservation structure 7 and fourth air passage reservation structure 8), the matching requirements and the installation requirements of clutch actuators and brake assemblies of different models (different manufacturers) are met, the air passages are reasonably and flexibly arranged, the development cost is reduced, and the development time is shortened.
Furthermore, a plurality of reserved air passage structures are directly integrated and processed on the front shell 1 of the gearbox, a clutch actuator air inlet pipe assembly in the existing structure is eliminated, the first air passage reserved structure 5 and the second air passage reserved structure 6 are used for replacing the clutch actuator air inlet pipe assembly in the existing structure, and the first air passage reserved structure 5 and the second air passage reserved structure 6 are integrated and processed on the front shell 1 of the gearbox, so that the manufacturing cost can be reduced.
Furthermore, a clutch actuator air inlet pipe assembly externally connected to a gearbox front shell 1 in the prior art is omitted, a plurality of reserved air channel structures are directly integrated and machined on the gearbox front shell 1, air channel structures used for supplying air for a brake after partial machining are integrated on the air channel structures used for supplying air for the clutch actuator after machining, air inlet channels of partial brakes are integrally designed on air inlet channels of the clutch actuator, flexible configuration air channel design is displayed, the requirement is met with the minimum number of air channels, mutual interference between air channels inside the gearbox front shell 1 is avoided when different models (different manufacturers) of clutch actuators and brakes are matched, and difficulty in component part forming and gearbox installation is avoided.
In a preferred embodiment, on the outer side surface of the front shell 1 of the gearbox, the first installation position 3 is located above the second installation position 4, and the first air passage reservation structure 5, the second air passage reservation structure 6, the third air passage reservation structure 7 and the fourth air passage reservation structure 8 are all located above the first installation position 3.
The outer side surface of the gearbox front shell 1 is provided with a plurality of bolt holes 11 and a plurality of reinforcing ribs 12 besides the first mounting positions 3 and the second mounting positions 4. The first air passage reservation structure 5, the second air passage reservation structure 6, the third air passage reservation structure 7 and the fourth air passage reservation structure 8 need to avoid all bolt holes 11 and all reinforcing ribs 12 during design.
Based on the intensity requirement consideration of shell 1 and gearbox mesochite 2 before the gearbox to and based on the consideration to fixing bolt installation quantity and arrangement space, design third air flue reserved structure 7 on first air flue reserved structure 5, but not also design third air flue reserved structure 7 and fourth air flue reserved structure 8 into the mutually independent structure the same with first air flue reserved structure 5 and second air flue reserved structure 6, can guarantee that shell 1 has enough fixing torque in the gearbox and gearbox mesochite 2, satisfy the leakproofness requirement, guarantee that the casing has enough intensity.
And, design third air flue reserved structure 7 on first air flue reserved structure 5, but not design third air flue reserved structure 7 and fourth air flue reserved structure 8 into the same mutually independent structure as first air flue reserved structure 5 and second air flue reserved structure 6, can satisfy current casting process requirement, avoid producing because air flue interference, air flue and bolt hole 11 interference and the loose phenomenon such as gas leakage of casting that design too many air flues and lead to.
And, design third air flue reserved structure 7 on first air flue reserved structure 5, but not design third air flue reserved structure 7 and fourth air flue reserved structure 8 into the same mutually independent structure as first air flue reserved structure 5 and second air flue reserved structure 6, can avoid producing the problem that the machining degree of difficulty increases that leads to because design too many air flues.
In the preferred embodiment, three pairs of contact holes 10 are arranged on two inner side surfaces of the front gearbox shell 1 and the middle gearbox shell 2, which are in contact with each other. Three contact holes 10 on the gearbox front shell 1 are respectively in contact with the first air passage reservation structure 5, the second air passage reservation structure 6 and the fourth air passage reservation structure 8. Three contact holes 10 on the gearbox middle shell 2 are respectively used for butting with a gear shifting actuator (not shown in the figure).
An opening of one side of a plurality of contact holes 10 on the gearbox middle shell 2 is in butt joint with the gear shifting actuator, an opening of the other side of the gear shifting actuator is in butt joint with a plurality of contact holes 10 on the gearbox front shell 1, and the contact holes 10 on the gearbox front shell 1 are in contact with the first air passage reserved structure 5, the second air passage reserved structure 6 and the fourth air passage reserved structure 8 respectively. Several contact holes 10 in the casing 2 of the gearbox are obtained by vertical machining. Several contact holes 10 on the gearbox middle shell 2 and several contact holes 10 on the gearbox front shell 1 are in one-to-one correspondence, and the butt joint of each pair of contact holes 10 is provided with sealing rubber or other sealing components to improve the sealing property.
Several contact holes 10 on the gearbox center casing 2 serve as air supply channels for delivering air supply to the gearbox front casing 1.
The contact holes 10 on the front shell 1 of the gearbox are used as air source channels and used for receiving an air source transmitted by the middle shell 2 of the gearbox and transmitting the air source to the first air passage, the second air passage, the third air passage and the fourth air passage processed by the first air passage reserved structure 5, the second air passage reserved structure 6 and the fourth air passage reserved structure 8. Several contact holes 10 on the gearbox front shell 1 can be in contact with one end of the first air passage reservation structure 5, the second air passage reservation structure 6 and the fourth air passage reservation structure 8, and can also be in contact with any air passage structure between openings at two ends of the first air passage reservation structure 5, the second air passage reservation structure 6 and the fourth air passage reservation structure 8.
In a preferred embodiment, the first air duct reservation structure 5 is at least partially exposed on the outer side surface of the front shell 1 of the transmission case. At least part of the second air passage reserved structure 6 is exposed out of the outer side face of the gearbox front shell 1. One end of the fourth air passage reservation structure 8 is exposed on the outer side surface of the front shell 1 of the gearbox, and the other end is exposed on the inner side surface of the front shell 1 of the gearbox.
The first air passage reservation structure 5 is partially or completely exposed on the outer side surface of the gearbox front shell 1, and a contact hole 10 (the contact hole 10 positioned on the rightmost side of the gearbox front shell 1 in fig. 4 and 5) on the gearbox front shell 1 corresponding to the first air passage reservation structure 5 is in contact with the air passage structure between openings at two ends of the first air passage reservation structure 5. After the air passage of the first air passage reservation structure 5 is processed through the process hole 9 (the process hole 9 positioned at the rightmost side of the front shell 1 of the gearbox in fig. 4 and 5) to form the first air passage, the contact hole 10 contacted with the first air passage is communicated with the side wall of the first air passage, and the contact hole 10 sends an air source into the first air passage from the contact position of the contact hole 10 and the first air passage.
The second air passage reserved structure 6 is partially or completely exposed on the outer side surface of the transmission case front shell 1, and a contact hole 10 (the contact hole 10 in the middle of the transmission case front shell 1 in fig. 4 and 5) corresponding to the second air passage reserved structure 6 on the transmission case front shell 1 is in contact with the air passage structures between openings at two ends of the second air passage reserved structure 6. After the air passage of the second air passage reservation structure 6 is processed through the process hole 9 (the process hole 9 in the middle of the front shell 1 of the gearbox in fig. 4 and 5) to form a second air passage, the contact hole 10 in contact with the second air passage is communicated with the side wall of the second air passage, and the contact hole 10 sends an air source into the second air passage from the contact position of the contact hole 10 and the second air passage.
One end of the fourth air passage reservation structure 8 is exposed on the outer side surface of the front shell 1 of the gearbox, and the other end is exposed on the inner side surface of the front shell 1 of the gearbox. A contact hole 10 (the leftmost contact hole 10 in fig. 4 and 5) on the transmission front shell 1 corresponding to the fourth air passage reservation structure 8 is in contact with one end of the fourth air passage reservation structure 8 facing the inner side surface of the transmission front shell 1. After the fourth air passage reservation structure 8 is processed by the process hole 9 (not shown in the figure) to form a fourth air passage, the contact hole 10 contacting the fourth air passage is communicated with an opening at one end of the fourth air passage, and the contact hole 10 sends an air source into the fourth air passage from the contact position of the contact hole and the fourth air passage.
In a preferred embodiment, one end of the third air passage reservation structure 7 is exposed on the outer side surface of the front shell 1 of the transmission case, and the other end is located inside the first air passage reservation structure 5.
When the third air passage reservation structure 7 needs to be processed by the air passage to obtain the third air passage so as to utilize the third air passage to be matched and connected with the brake, the first air passage reservation structure 5 needs to be processed by the air passage to form the first air passage, and then the third air passage reservation structure 7 needs to be processed by the air passage to obtain the third air passage communicated with the first air passage. And after the air source is sent into the front shell 1 of the gearbox from the middle shell 2 of the gearbox, the air source is sent into the third air passage through the first air passage.
As described above, when the first air passage reservation structure 5 is subjected to air passage processing, part or all of the first air passage reservation structure 5 is exposed on the outer side surface of the transmission case front shell 1, and the contact hole 10 (the contact hole 10 located on the rightmost side of the transmission case front shell 1 in fig. 4 and 5) on the transmission case front shell 1 corresponding to the first air passage reservation structure 5 is in contact with the air passage structure between the openings at the two ends of the first air passage reservation structure 5. After the air passage of the first air passage reservation structure 5 is processed through the process hole 9 (the process hole 9 positioned at the rightmost side of the front shell 1 of the gearbox in fig. 4 and 5) to form the first air passage, the contact hole 10 contacted with the first air passage is communicated with the side wall of the first air passage, and the contact hole 10 sends an air source into the first air passage from the contact position of the contact hole 10 and the first air passage. After the first air passage is processed, air passage processing is carried out on the third air passage reserved structure 7 through a fabrication hole 9 (not shown in the figure) to obtain a third air passage communicated with the first air passage, and an air source is sent into the third air passage through the first air passage after being sent into the front shell 1 of the gearbox from the middle shell 2 of the gearbox.
The invention also provides an application method of the generalized integrated air passage arrangement structure of the automatic gearbox, and based on the generalized integrated air passage arrangement structure of the automatic gearbox, the application method comprises the following steps:
and processing according to the structural characteristics of the clutch actuator and the brake to obtain an air inlet channel processing strategy.
According to the air inlet channel machining strategy, air channel machining is carried out on at least one of the first air channel reserved structure 5 and the second air channel reserved structure 6 through at least one processing hole 9 to form an air inlet channel for supplying air to the clutch actuator, and air channel machining is carried out on at least one of the third air channel reserved structure 7 and the fourth air channel reserved structure 8 through at least one processing hole 9 to form an air inlet channel for supplying air to the brake.
A structure 7 is reserved for the third airway. When the air passage is processed, the first air passage is reserved with a structure 5. And (5) processing the air passage to form a first air passage, and reserving a structure (7) for the third air passage. And processing the air passage to form a third air passage communicated with the first air passage.
The first air passage, the second air passage, the third air passage and the fourth air passage can be used for air supply and air exhaust.
In this embodiment, a plurality of air passage structures (i.e., the first air passage reservation structure 5, the second air passage reservation structure 6, the third air passage reservation structure 7 and the fourth air passage reservation structure 8) are reserved when the front shell 1 of the gearbox is poured, according to the air passage processing strategy, the air passages which meet different matching requirements and installation requirements can be obtained by selectively processing the air passage reservation structures through a plurality of process holes 9 in the later stage, and the matching requirements and installation requirements of clutch actuators and brake assemblies of different models (different manufacturers) can be met without adjusting the shell design and the air inlet pipe assembly structure (i.e., the first air passage reservation structure 5, the second air passage reservation structure 6, the third air passage reservation structure 7 and the fourth air passage reservation structure 8 which are respectively used for being in matching connection with the clutch actuators and the brakes on the front shell 1 of the gearbox), so that the air passage structure is reasonable, the air passage structure is achieved, The flexible arrangement reduces the development cost and shortens the development time.
Furthermore, a plurality of reserved air passage structures are directly integrated and processed on the front shell 1 of the gearbox, a clutch actuator air inlet pipe assembly in the existing mechanism is eliminated, the first air passage reserved structure 5 and the second air passage reserved structure 6 are used for replacing the clutch actuator air inlet pipe assembly in the existing mechanism, and the first air passage reserved structure 5 and the second air passage reserved structure 6 are integrated and processed on the front shell 1 of the gearbox, so that the manufacturing cost can be reduced.
Furthermore, a clutch actuator air inlet pipe assembly externally connected to a gearbox front shell 1 in the prior art is omitted, a plurality of reserved air channel structures are directly integrated and machined on the gearbox front shell 1, air channel structures used for supplying air for a brake after partial machining are integrated on the air channel structures used for supplying air for the clutch actuator after machining, air inlet channels of partial brakes are integrally designed on air inlet channels of the clutch actuator, flexible configuration air channel design is displayed, the requirement is met with the minimum number of air channels, mutual interference between air channels inside the gearbox front shell 1 is avoided when different models (different manufacturers) of clutch actuators and brakes are matched, and difficulty in component part forming and gearbox installation is avoided.
In a preferred embodiment, the structural characteristics of the clutch actuator include the size of the clutch actuator cylinder diameter. The structural features of the brake include a brake air inlet interface orientation.
In a preferred embodiment, the processing strategy comprises:
when the automatic gearbox is provided with a clutch actuator with a small cylinder diameter and an air inlet interface of the brake faces left, the first air passage reserved structure 5, the second air passage reserved structure 6 and the third air passage reserved structure 7 are processed through the fabrication holes 9 to form a corresponding first air passage, a corresponding second air passage and a corresponding third air passage, and the third air passage is communicated with the second air passage.
Contact holes 10 corresponding to the positions of the first air passage and the second air passage on the inner surface of the front shell of the transmission respectively transmit air sources transmitted by the middle shell of the transmission to the first air passage and the second air passage, the second air passage transmits the air sources to the third air passage, the first air passage is used for transmitting the air sources to a clutch brake, and the third air passage is used for transmitting the air sources to the brake.
In this embodiment, when the air passage is processed on the second air passage reservation structure 6, the contact hole 10 (the contact hole 10 located in the middle of the front shell 1 of the transmission in fig. 4 and 5) on the front shell 1 of the transmission corresponding to the second air passage reservation structure 6 is in contact with the air passage structure between the openings at the two ends of the second air passage reservation structure 6. After the air passage of the second air passage reservation structure 6 is processed through the process hole 9 (the process hole 9 in the middle of the front shell 1 of the gearbox in fig. 4 and 5) to form a second air passage, the contact hole 10 in contact with the second air passage is communicated with the side wall of the second air passage, and the contact hole 10 sends an air source into the second air passage from the contact position of the contact hole 10 and the second air passage.
Air flue processing is carried out on the first air flue reserved structure 5 before air flue processing is carried out on the third air flue reserved structure 7, when the air flue processing is carried out on the first air flue reserved structure 5, part or all of the first air flue reserved structure 5 is exposed out of the outer side face of the gearbox front shell 1, and an air flue structure between a contact hole 10 (the contact hole 10 located on the rightmost side of the gearbox front shell 1 in the figures 4 and 5) on the gearbox front shell 1 corresponding to the first air flue reserved structure 5 and openings at two ends of the first air flue reserved structure 5 is in contact. After the air passage of the first air passage reservation structure 5 is processed through the process hole 9 (the process hole 9 positioned at the rightmost side of the front shell 1 of the gearbox in fig. 4 and 5) to form the first air passage, the contact hole 10 contacted with the first air passage is communicated with the side wall of the first air passage, and the contact hole 10 sends an air source into the first air passage from the contact position of the contact hole 10 and the first air passage. After the first air passage is processed, the air passage of the third air passage reserved structure 7 is processed through a fabrication hole 9 (not shown in the figure) to obtain a third air passage communicated with the first air passage, and an air source is sent into the third air passage through the first air passage after being sent into the front shell 1 of the gearbox from the middle shell 2 of the gearbox.
In a preferred embodiment, the processing strategy comprises:
when the automatic gearbox is provided with a clutch actuator with a small cylinder diameter and an air inlet interface of the brake faces right, the second air passage reserved structure 6 and the fourth air passage reserved structure 8 are processed through the fabrication hole 9 to form a corresponding second air passage and a corresponding fourth air passage.
Contact holes 10 corresponding to the positions of a second air passage and a fourth air passage on the inner surface of the front shell of the transmission respectively transmit air sources transmitted by the middle shell of the transmission to the second air passage and the fourth air passage, wherein the second air passage is used for transmitting the air sources to a clutch brake, and the fourth air passage is used for transmitting the air sources to the brake.
In this embodiment, when the air passage processing is performed on the second air passage reservation structure 6, the contact hole 10 (the contact hole 10 located in the middle of the transmission case front shell 1 in fig. 4 and 5) on the transmission case front shell 1 corresponding to the second air passage reservation structure 6 is in contact with the air passage structure between the openings at the two ends of the second air passage reservation structure 6. After the air passage of the second air passage reservation structure 6 is processed through the process hole 9 (the process hole 9 in the middle of the front shell 1 of the gearbox in fig. 4 and 5) to form a second air passage, the contact hole 10 in contact with the second air passage is communicated with the side wall of the second air passage, and the contact hole 10 sends an air source into the second air passage from the contact position of the contact hole 10 and the second air passage.
When the fourth air passage reservation structure 8 is subjected to air passage processing, one end of the fourth air passage reservation structure 8 is exposed on the outer side surface of the front shell 1 of the gearbox, and the other end of the fourth air passage reservation structure is exposed on the inner side surface of the front shell 1 of the gearbox. A contact hole 10 (the leftmost contact hole 10 in fig. 4 and 5) on the transmission front shell 1 corresponding to the fourth air passage reservation structure 8 is in contact with one end of the fourth air passage reservation structure 8 facing the inner side surface of the transmission front shell 1. After the fourth air passage reservation structure 8 is processed through the fabrication hole 9 (not shown in the figure) to form a fourth air passage, the contact hole 10 contacting the fourth air passage is communicated with an opening at one end of the fourth air passage, and the contact hole 10 sends an air source into the fourth air passage from the contact position of the contact hole and the fourth air passage.
In a preferred embodiment, the processing strategy comprises:
when the clutch actuator with the large cylinder diameter is installed on the automatic gearbox, the first air passage reserved structure 5 and the fourth air passage reserved structure 8 are subjected to air passage machining through the fabrication hole 9 to form a corresponding first air passage and a corresponding fourth air passage.
Contact holes 10 corresponding to the positions of a first air passage and a fourth air passage on the inner surface of the front shell of the transmission respectively transmit air sources transmitted by the middle shell of the transmission to the first air passage and the fourth air passage, wherein the first air passage is used for transmitting the air sources to a clutch brake, and the fourth air passage is used for transmitting the air sources to the brake.
In this embodiment, when the air passage is processed on the first air passage reservation structure 5, part or all of the first air passage reservation structure 5 is exposed on the outer side surface of the transmission case front shell 1, and the contact hole 10 (the contact hole 10 located on the rightmost side of the transmission case front shell 1 in fig. 4 and 5) on the transmission case front shell 1 corresponding to the first air passage reservation structure 5 is in contact with the air passage structure between the openings at the two ends of the first air passage reservation structure 5. After the air passage of the first air passage reservation structure 5 is processed through the process hole 9 (the process hole 9 positioned at the rightmost side of the front shell 1 of the gearbox in fig. 4 and 5) to form the first air passage, the contact hole 10 contacted with the first air passage is communicated with the side wall of the first air passage, and the contact hole 10 sends an air source into the first air passage from the contact position of the contact hole 10 and the first air passage.
When the fourth air passage reservation structure 8 is subjected to air passage processing, one end of the fourth air passage reservation structure 8 is exposed on the outer side surface of the front shell 1 of the gearbox, and the other end of the fourth air passage reservation structure is exposed on the inner side surface of the front shell 1 of the gearbox. A contact hole 10 (the leftmost contact hole 10 in fig. 4 and 5) on the transmission front shell 1 corresponding to the fourth air passage reservation structure 8 is in contact with one end of the fourth air passage reservation structure 8 facing the inner side surface of the transmission front shell 1. After the fourth air passage reservation structure 8 is processed by the process hole 9 (not shown in the figure) to form a fourth air passage, the contact hole 10 contacting the fourth air passage is communicated with an opening at one end of the fourth air passage, and the contact hole 10 sends an air source into the fourth air passage from the contact position of the contact hole and the fourth air passage.
When the gearbox is matched with the large-cylinder-diameter clutch actuator, the air inlet channel of the brake can only be matched and connected with the fourth air channel. When a quick response type brake is used (a common type brake shares one air passage for intake and exhaust), it is necessary to use a fourth air passage and a third air passage simultaneously, one for intake and the other for exhaust.
The present application is not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present application, and such modifications and improvements are also considered to be within the scope of the present application.
Claims (10)
1. A universal integrated air channel arrangement structure of an automatic gearbox comprises a gearbox front shell (1) and a gearbox middle shell (2) which are arranged together, wherein a first installation position (3) for installing a clutch actuator and a second installation position (4) for installing a brake are arranged on the outer side surface, far away from the gearbox middle shell (2), of the gearbox front shell (1); the gearbox front shell (1) is provided with a first air passage reserved structure (5), a second air passage reserved structure (6), a third air passage reserved structure (7), a fourth air passage reserved structure (8) and a plurality of process holes (9) for air passage processing, wherein the first air passage reserved structure, the second air passage reserved structure, the third air passage reserved structure, the fourth air passage reserved structure and the process holes are integrally formed;
the first air passage reserved structure (5) and the fourth air passage reserved structure (8) are positioned on two sides of the second air passage reserved structure (6), and the first air passage reserved structure (5) is provided with a third air passage reserved structure (7);
one end of the first air passage reserved structure (5) and one end of the second air passage reserved structure (6) face the peripheral surface of the front shell (1) of the gearbox respectively, and the other end of the first air passage reserved structure is located in the first mounting position (3) respectively;
one end of the fourth air channel reserved structure (8) is located on the inner side face of the front shell (1) of the gearbox, and the other end of the fourth air channel reserved structure is located on the outer side face of the front shell (1) of the gearbox except the first mounting position (3).
2. The generalized integrated air passage arrangement structure of an automatic transmission according to claim 1, characterized in that, at the outer side of the front shell (1) of the transmission, the first installation location (3) is located above the second installation location (4), and the first air passage reservation structure (5), the second air passage reservation structure (6), the third air passage reservation structure (7) and the fourth air passage reservation structure (8) are located above the first installation location (3).
3. The generalized integrated air passage arrangement structure of an automatic transmission according to claim 1, characterized in that three pairs of contact holes (10) which are butted with each other are arranged on two inner side surfaces of the front transmission shell (1) and the middle transmission shell (2) which are contacted with each other;
three contact holes (10) on a front shell (1) of the gearbox are respectively contacted with a first air passage reserved structure (5), a second air passage reserved structure (6) and a fourth air passage reserved structure (8);
three contact holes (10) on the gearbox middle shell (2) are respectively used for being butted with a gear shifting actuator.
4. The generalized integrated air passage arrangement structure of an automatic transmission according to claim 1, characterized in that the first air passage reservation structure (5) is at least partially exposed at the outer side of the transmission front shell (1); and
the second air passage reserved structure (6) is at least partially exposed on the outer side surface of the gearbox front shell (1); and
one end of the fourth air passage reserved structure (8) is exposed on the outer side face of the front shell (1) of the gearbox, and the other end of the fourth air passage reserved structure is exposed on the inner side face of the front shell (1) of the gearbox.
5. The generalized integrated air passage arrangement structure of an automatic transmission according to claim 4, wherein one end of the third air passage reservation structure (7) is exposed out of the outer side surface of the transmission front shell (1), and the other end is located inside the first air passage reservation structure (5).
6. An application method of a universal integrated air passage arrangement structure of an automatic gearbox, which is based on the universal integrated air passage arrangement structure of the automatic gearbox of any one of the claims 1-5; the application method is characterized by comprising the following steps:
processing according to the structural characteristics of the clutch actuator and the brake to obtain an air inlet channel processing strategy;
according to an air inlet channel machining strategy, air channel machining is carried out on at least one of the first air channel reserved structure (5) and the second air channel reserved structure (6) through at least one process hole (9) to form an air inlet channel for supplying air to the clutch actuator, and air channel machining is carried out on at least one of the third air channel reserved structure (7) and the fourth air channel reserved structure (8) through at least one process hole (9) to form an air inlet channel for supplying air to the brake;
when the third air passage reservation structure (7) is subjected to air passage processing, the first air passage reservation structure (5) is subjected to air passage processing to form a first air passage, and then the third air passage reservation structure (7) is subjected to air passage processing to form a third air passage communicated with the first air passage.
7. The method of applying the generalized integrated airway structure of an automatic transmission of claim 6 wherein the structural characteristics of the clutch actuator include clutch actuator cylinder diameter size;
the structural features of the brake include the brake air inlet interface orientation.
8. The method of applying the generalized integrated airway structure of an automatic transmission of claim 7 wherein the machining strategy includes:
when the automatic gearbox is provided with a clutch actuator with a small cylinder diameter and an air inlet interface of a brake faces to the left, a first air passage reserved structure (5), a second air passage reserved structure (6) and a third air passage reserved structure (7) are processed through a fabrication hole (9) to form a corresponding first air passage, a second air passage and a third air passage, and the third air passage is communicated with the second air passage;
contact holes (10) corresponding to the positions of the first air passage and the second air passage on the inner surface of the front shell (1) of the transmission respectively convey air sources conveyed by the middle shell (2) of the transmission to the first air passage and the second air passage, the second air passage conveys the air sources to a third air passage, the first air passage is used for conveying the air sources to a clutch brake, and the third air passage is used for conveying the air sources to the brake.
9. The method of applying the generalized integrated airway structure of an automatic transmission of claim 7 wherein the machining strategy includes:
when the automatic gearbox is provided with a clutch actuator with a small cylinder diameter and an air inlet interface of the brake faces right, the second air passage reserved structure (6) and the fourth air passage reserved structure (8) are processed through the fabrication hole (9) to form a corresponding second air passage and a corresponding fourth air passage;
and contact holes (10) corresponding to the positions of a second air passage and a fourth air passage on the inner surface of the front shell (1) of the transmission respectively convey air sources conveyed by the middle shell (2) of the transmission to the second air passage and the fourth air passage, the second air passage is used for conveying the air sources to a clutch brake, and the fourth air passage is used for conveying the air sources to the brake.
10. The method of applying the generalized integrated airway structure of an automatic transmission of claim 7 wherein the machining strategy includes:
when the clutch actuator with a large cylinder diameter is installed on the automatic gearbox, air passages of the first air passage reserved structure (5) and the fourth air passage reserved structure (8) are processed through the fabrication hole (9) to form a corresponding first air passage and a corresponding fourth air passage;
contact holes (10) corresponding to the positions of a first air passage and a fourth air passage on the inner surface of the front shell (1) of the transmission respectively convey air sources conveyed by the middle shell (2) of the transmission to the first air passage and the fourth air passage, the first air passage is used for conveying the air sources to a clutch brake, and the fourth air passage is used for conveying the air sources to the brake.
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