CN215891029U - Gearbox shell structure and gearbox - Google Patents
Gearbox shell structure and gearbox Download PDFInfo
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- CN215891029U CN215891029U CN202121437945.1U CN202121437945U CN215891029U CN 215891029 U CN215891029 U CN 215891029U CN 202121437945 U CN202121437945 U CN 202121437945U CN 215891029 U CN215891029 U CN 215891029U
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Abstract
The utility model discloses a gearbox shell structure and a gearbox, which comprise a gearbox shell body, wherein the gearbox shell body is provided with an air passage, one end of the air passage is connected with a reverse gear electromagnetic valve, and the other end of the air passage is connected with a reverse gear cylinder; the reverse gear electromagnetic valve and the reverse gear cylinder are respectively arranged on the gearbox shell body; according to the utility model, the air passage is arranged on the gearbox shell body, and the air passage arranged on the shell body is used for replacing an external air pipe, so that the connection of the reverse gear electromagnetic valve and the reverse gear cylinder is realized; the interference between the air pipe joint and the whole vehicle is avoided, and the failure rate of the air pipe in the later operation is reduced; simple structure, convenient to use has saved tracheal cost simultaneously.
Description
Technical Field
The utility model belongs to the technical field of gearboxes, and particularly relates to a gearbox shell structure and a gearbox.
Background
At present, AMT gearboxes are mainly structurally divided into two types; one is an integrated AMT, which integrates a Transmission Controller (TCU), an operating device assembly, a clutch actuator and the like inside the transmission, and has high integration level and compact structure; another is a modular AMT that attaches a Transmission Controller (TCU), an operator assembly, a clutch actuator, etc. external to the transmission; compared with an integrated AMT, the modularized AMT has the advantages that the universality of parts can be improved, the cost is reduced, the maintenance is convenient, and the reliability is high.
AMT gearbox actuating mechanisms can be divided into three types according to different power sources; the first type is a hydraulic actuating mechanism, the mechanism has high response speed, but has large hydraulic energy loss and low transmission efficiency, and hydraulic components have higher requirements on processing precision and sealing performance and high cost; the second type is an electric actuating mechanism which has high transmission efficiency and small energy loss, but has a complex structure and large occupied space and is not beneficial to the arrangement of the whole vehicle; the third type is a pneumatic type actuating mechanism, the pneumatic type actuating mechanism is high in response speed, if the vehicle is provided with an air source, the supply of an additional power source can be reduced, the fuel economy of the vehicle is improved, the requirements on the machining precision of parts are general, and the cost is low.
Most of the existing AMT gearbox pneumatic actuating mechanisms are provided with external air pipes to realize connection of all parts of mechanisms, and the existing AMT gearbox pneumatic actuating mechanisms are complex in pipeline structure, high in failure rate and large in occupied space.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems in the prior art, the utility model provides a gearbox shell structure and a gearbox, and aims to solve the problems that most of existing AMT gearbox pneumatic actuating mechanisms are provided with external air pipes to realize connection of various parts of mechanisms, the pipeline structure is complex, the failure rate is high, and the occupied space is large.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a gearbox shell structure which comprises a gearbox shell body, wherein an air passage is formed in the gearbox shell body, one end of the air passage is connected with a reverse gear electromagnetic valve, and the other end of the air passage is connected with a reverse gear cylinder; the reverse gear electromagnetic valve and the reverse gear cylinder are respectively installed on the gearbox shell body.
Further, a reverse gear piston is arranged in the reverse gear cylinder, and the reverse gear piston divides the reverse gear cylinder into a front end of the cylinder and a rear end of the cylinder; the air passage comprises a first air passage and a second air passage, one end of the first air passage is connected with a first output end of the reverse gear electromagnetic valve, and the other end of the first air passage is communicated with the rear end of the reverse gear cylinder; one end of the second air passage is connected with a second output end of the reverse gear electromagnetic valve, and the other end of the second air passage is connected with the front end of the cylinder of the reverse gear cylinder.
Furthermore, the first air channel comprises a first ventilation section, a first through hole and a second ventilation section; the first ventilation section is arranged on the top surface of the gearbox shell body, and the second ventilation section penetrates through the interior of the gearbox shell body; one end of the first ventilation section is connected with a first output end of the reverse gear electromagnetic valve, the other end of the first ventilation section is connected with one end of the second ventilation section through the second through hole, and the other end of the second ventilation section is communicated with the rear end of the cylinder of the reverse gear cylinder.
Further, first through-hole setting is in the inside of transmission housing body for link up the head and the tail of first section of ventilating and second section of ventilating.
Further, the second air passage comprises a third air passage section, a second through hole and a fourth air passage section; the third ventilation section is arranged on the top surface of the gearbox shell body, and the fourth ventilation section is arranged in the gearbox shell body in a penetrating manner; one end of the third air passing section is connected with the second output end of the reverse gear electromagnetic valve, the other end of the third air passing section is connected with one end of the fourth air passing section through the second through hole, and the other end of the fourth air passing section is communicated with the front end of the cylinder of the reverse gear cylinder.
Furthermore, the second through hole is arranged inside the gearbox shell body and used for penetrating through the head and the tail of the third ventilation section and the fourth ventilation section.
Furthermore, the reverse gear piston is connected with a reverse gear piston rod through a nut, and the reverse gear piston rod is installed in a piston rod hole of the gearbox shell body.
Furthermore, the input end of the reverse gear electromagnetic valve is connected with an air source.
Further, first air flue and second air flue are all through casting the shaping with gearbox housing body integral type.
The utility model also provides a gearbox, which comprises a gearbox body and a gearbox shell, wherein the gearbox body is arranged in the gearbox shell; the gearbox shell adopts the gearbox shell structure.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a gearbox shell structure and a gearbox, wherein an air passage is arranged on a gearbox shell body, and the air passage arranged on the shell body is used for replacing an external air pipe, so that a reverse gear electromagnetic valve and a reverse gear air cylinder are connected; the interference between the air pipe joint and the whole vehicle is avoided, and the failure rate of the air pipe in the later operation is reduced; simple structure, convenient to use has saved tracheal cost simultaneously.
Furthermore, by arranging the first air passage and the second air passage, when the reverse gear is engaged, air pressure pushes the reverse gear piston to move through the front end of the first access cylinder to realize the engagement of the gear; when reverse gear is picked, air pressure is introduced into the rear end of the air cylinder through the second air passage to push the reverse gear piston to move in the opposite direction so as to realize gear picking.
Furthermore, the first air passage and the second air passage are respectively divided into two sections through respective through holes, one section is positioned in the shell and obtained through machining, and the other section is positioned on the top surface of the shell and obtained through casting; adopt partly air flue to obtain through machining, effectively guarantee the accuracy of gas circuit transmission position, and obtain the remaining air flue through the casting, can effectively reduce the machining cost of gearbox housing body.
Drawings
FIG. 1 is a cross-sectional view of a first air passage in the transmission housing structure in the embodiment;
FIG. 2 is a sectional view of a second air passage in the transmission housing structure according to the embodiment;
FIG. 3 is a schematic view showing an assembly structure of the transmission case, the reverse solenoid valve and the reverse cylinder in the embodiment.
The transmission comprises a transmission shell body 1, an electromagnetic valve 2 and a reverse gear cylinder 3, wherein the transmission shell body is provided with a transmission shell body; 11 a first air passage, 12 a second air passage, 13 a first through hole and 14 a second through hole; 31 reverse gear piston.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects of the present invention more apparent, the following embodiments further describe the present invention in detail. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
Examples
In the embodiment, a six-gear AMT gearbox is taken as an example.
As shown in fig. 1-3, the present embodiment provides a transmission case structure, including a transmission case body 1, where the transmission case body 1 is provided with an air passage, one end of the air passage is connected to a reverse electromagnetic valve 2, and the other end is connected to a reverse cylinder 3; the reverse gear electromagnetic valve 2 and the reverse gear cylinder 3 are respectively installed on the gearbox shell body 1.
The input end of the reverse gear electromagnetic valve 2 is connected with an air source, the reverse gear electromagnetic valve 2 is provided with a first output end and a second output end, and the first output end and the second output end are respectively communicated with the reverse gear cylinder 3.
A reverse gear piston 31 is arranged in the reverse gear cylinder 3, the reverse gear piston 31 is connected with a reverse gear piston rod through a nut, the reverse gear piston rod is arranged in a piston rod hole of the gearbox shell body 1, and a shifting fork is arranged on the reverse gear piston rod; the reverse piston 31 divides the reverse cylinder 3 into a cylinder front end and a cylinder rear end; the air passage comprises a first air passage 11 and a second air passage 12, one end of the first air passage 11 is connected with a first output end of the reverse gear electromagnetic valve 2, and the other end of the first air passage is communicated with the rear end of the reverse gear cylinder 3; one end of the second air passage 12 is connected with the second output end of the reverse gear electromagnetic valve 2, and the other end is connected with the front end of the reverse gear cylinder 3.
The first air passage 11 comprises a first ventilation section, a first through hole 13 and a second ventilation section; the first ventilation section is arranged on the top surface of the gearbox shell body 1, and the second ventilation section is arranged in the gearbox shell body 1 in a penetrating mode; one end of the first ventilation section is connected with the first output end of the reverse gear electromagnetic valve 2, the other end of the first ventilation section is connected with one end of the second ventilation section through a second through hole 13, and the other end of the second ventilation section is communicated with the rear end of the cylinder of the reverse gear cylinder 3; the first through hole 13 is arranged in the gearbox shell body 1 and is used for penetrating the head and the tail of the first ventilation section and the second ventilation section; one end of the first through hole 13 is communicated with the tail end of the first ventilation section, and the other end of the first through hole is communicated with the head part of the second ventilation section; preferably, the first through hole 13 is machined.
The second air passage 12 comprises a third air passage section, a second through hole 14 and a fourth air passage section; the third ventilation section is arranged on the top surface of the gearbox shell body 1, and the fourth ventilation section is arranged inside the gearbox shell body 1 in a penetrating mode; one end of the third air passing section is connected with the second output end of the reverse gear electromagnetic valve 2, the other end of the third air passing section is connected with one end of the fourth air passing section through a second through hole 14, and the other end of the fourth air passing section is communicated with the front end of the cylinder of the reverse gear cylinder 3; the second through hole 14 is arranged inside the gearbox shell body 1 and is used for penetrating the head and the tail of the third through air section and the fourth through air section; one end of the second through hole 14 is communicated with the tail end of the third air passing section, and the other end is communicated with the head part of the fourth air passing section; preferably, the second through hole 14 is machined.
The first ventilation section and the third ventilation section are respectively open through grooves formed in the top surface of the gearbox shell body 1, the reverse gear electromagnetic valve 2 is hermetically mounted on the top surface of the gearbox shell body 1 and is positioned above the first ventilation section and the second ventilation section, and the reverse gear electromagnetic valve 2 is matched with the two open through grooves to form an air pressure passage; reverse gear solenoid valve 2 passes through the top fixed surface of bolt and gearbox housing body 1 and is connected, and is provided with sealing material between reverse gear solenoid valve 2 and the gearbox housing body 1.
Preferably, the first air duct 11 and the second air duct 12 are formed by casting integrally with the transmission case body 1.
The embodiment also provides a gearbox, which comprises a gearbox body and a gearbox shell, wherein the gearbox body is arranged in the gearbox shell; the gearbox shell adopts the gearbox shell structure in the embodiment.
The working principle is as follows:
according to the gearbox shell structure, the first air passage and the second air passage are arranged on the gearbox shell body; utilize first air flue to communicate the first output of the solenoid valve 2 that reverses gear with the cylinder rear end of cylinder 3 that reverses gear, utilize the second air flue to communicate the second output of the solenoid valve 2 that reverses gear with the cylinder front end of cylinder 3 that reverses gear.
When the gearbox is shifted in reverse, air pressure is introduced into the rear end of the cylinder of the reverse gear cylinder 3 through a first air passage through a first output end of the reverse gear electromagnetic valve 2 to push a reverse gear piston to move towards the front end of the cylinder of the reverse gear cylinder 3, the reverse gear piston drives a shifting fork on a piston rod to move, and the shifting fork drives a reverse gear tooth sleeve to realize gear disengagement; wherein, the shifting fork is fixed on the piston rod through a pin.
When the gearbox is in reverse gear, air pressure is introduced into the front end of the cylinder of the reverse gear cylinder 3 through the second output end of the reverse gear electromagnetic valve 2 through the second air passage to push the reverse gear piston to move towards the rear end of the cylinder of the reverse gear cylinder 3, the reverse gear piston drives the shifting fork on the piston rod to move, and the shifting fork drives the reverse gear sleeve to realize reverse gear engagement.
This embodiment has replaced the effect of external trachea through the gearbox shell structure that adopts to have the air flue, makes pneumatic actuator efficiency higher during operation, and the security reliability further promotes.
According to the gearbox shell structure and the gearbox, the gearbox shell body with the air passage can be directly cast through mould forming; arranging an air passage at the top of a gearbox shell, wherein the air passage is from a reverse gear electromagnetic valve to a reverse gear cylinder, and a through hole is formed in a transition position, so that air pressure can be introduced into the reverse gear cylinder through the air passage; an air passage arranged on the gearbox shell body is used for replacing an external air pipe, so that the connection between the reverse gear electromagnetic valve and the reverse gear cylinder is realized; the interference between the air pipe joint and the whole vehicle is avoided, and the failure rate of the air pipe in the later operation is reduced; the utility model has simple structure and convenient use, and saves the cost of the air pipe.
The above-described embodiment is only one of the embodiments that can implement the technical solution of the present invention, and the scope of the present invention is not limited by the embodiment, but includes any variations, substitutions and other embodiments that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed.
Claims (10)
1. A gearbox shell structure is characterized by comprising a gearbox shell body (1), wherein an air passage is formed in the gearbox shell body (1), one end of the air passage is connected with a reverse gear electromagnetic valve (2), and the other end of the air passage is connected with a reverse gear cylinder (3); the reverse gear electromagnetic valve (2) and the reverse gear cylinder (3) are respectively installed on the gearbox shell body (1).
2. A gearbox housing construction according to claim 1, characterised in that a reverse piston (31) is arranged in the reverse cylinder (3), the reverse piston (31) dividing the reverse cylinder (3) into a front cylinder end and a rear cylinder end; the air passage comprises a first air passage (11) and a second air passage (12), one end of the first air passage (11) is connected with a first output end of the reverse gear electromagnetic valve (2), and the other end of the first air passage is communicated with the rear end of the reverse gear cylinder (3); one end of the second air passage (12) is connected with the second output end of the reverse gear electromagnetic valve (2), and the other end of the second air passage is connected with the front end of the reverse gear cylinder (3).
3. A gearbox housing construction according to claim 2, characterised in that the first air duct (11) comprises a first venting section, a first through hole (13) and a second venting section; the first ventilation section is arranged on the top surface of the gearbox shell body (1), and the second ventilation section is arranged in the gearbox shell body (1) in a penetrating mode; one end of the first ventilation section is connected with a first output end of the reverse gear electromagnetic valve (2), the other end of the first ventilation section is connected with one end of the second ventilation section through a second through hole (14), and the other end of the second ventilation section is communicated with the rear end of the reverse gear cylinder (3).
4. A gearbox housing construction according to claim 3, characterised in that a first through-going bore (13) is provided in the interior of the gearbox housing body (1) for passing through the first and second venting sections end-to-end.
5. A gearbox housing arrangement according to claim 2, characterised in that the second air duct (12) comprises a third venting section, a second through hole (14) and a fourth venting section; the third ventilation section is arranged on the top surface of the gearbox shell body (1), and the fourth ventilation section is arranged inside the gearbox shell body (1) in a penetrating mode; one end of the third air passing section is connected with the second output end of the reverse gear electromagnetic valve (2), the other end of the third air passing section is connected with one end of the fourth air passing section through a second through hole (14), and the other end of the fourth air passing section is communicated with the front end of the reverse gear cylinder (3).
6. A gearbox housing construction according to claim 5, characterised in that a second through-going bore (14) is provided in the interior of the gearbox housing body (1) for passing through the third and fourth gas communication sections end to end.
7. A gearbox housing construction according to claim 2, characterised in that the reverse piston (31) is connected by a nut to a reverse piston rod, which is mounted in a piston rod bore in the gearbox housing body (1).
8. A gearbox housing construction according to claim 1, characterised in that the input of the reverse solenoid valve (2) is connected to an air supply.
9. A gearbox housing construction according to claim 2, characterised in that the first gas duct (11) and the second gas duct (12) are both formed by casting in one piece with the gearbox housing body (1).
10. A gearbox is characterized by comprising a gearbox body and a gearbox shell, wherein the gearbox body is arranged in the gearbox shell; the gearbox housing adopts the gearbox housing structure of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121437945.1U CN215891029U (en) | 2021-06-24 | 2021-06-24 | Gearbox shell structure and gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121437945.1U CN215891029U (en) | 2021-06-24 | 2021-06-24 | Gearbox shell structure and gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215891029U true CN215891029U (en) | 2022-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121437945.1U Active CN215891029U (en) | 2021-06-24 | 2021-06-24 | Gearbox shell structure and gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215891029U (en) |
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2021
- 2021-06-24 CN CN202121437945.1U patent/CN215891029U/en active Active
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