CN210890004U

CN210890004U - Automobile gearbox body

Info

Publication number: CN210890004U
Application number: CN201921786292.0U
Authority: CN
Inventors: 朱玲
Original assignee: Chongqing Vocational College of Transportation
Current assignee: Chongqing Vocational College of Transportation
Priority date: 2019-10-23
Filing date: 2019-10-23
Publication date: 2020-06-30
Anticipated expiration: 2029-10-23

Abstract

The utility model relates to an automobile transmission box belongs to gearbox technical field, include the box body and set up the dead eye on the box body, the dead eye is seted up the center of pylon, be provided with at least one sealed annular that is used for holding ring type seal in the extension section, the pylon includes upper prop platform and lower pylon, upper prop platform and lower pylon all are half cylinder type and both closely cooperate each other and form the pylon, first half annular has been seted up in the upper prop platform, second half annular has been seted up in the lower pylon, first half annular and second half annular trench are located the coplanar and make up and form sealed annular. The utility model discloses gearbox body structure can increase the leakproofness of box, prevents the in-process oil leak of gearbox using.

Description

Automobile gearbox body

Technical Field

The utility model belongs to the technical field of the gearbox, concretely relates to automobile transmission box.

Background

The gearbox is an important part of the vehicle, and can change the transmission ratio and enlarge the torque and the rotating speed of a driving wheel. With the development of modern science and technology, the gearbox is also upgraded, and the control is more and more convenient from the original manual gearbox to the current stepless gearbox from the synchronizer-free gearbox to the synchronizer-containing gearbox. At present, the engineering machinery widely adopts a diesel engine, the torque and rotating speed change range of the diesel engine is small, the requirements of a vehicle on traction force and running speed under various working conditions cannot be met, and a gearbox is required to solve the contradiction. The quality of the performance of the gearbox is the key for measuring the dynamic property, the economical efficiency and the drivability of the engineering machinery. The current speed change systems mainly comprise: mechanical transmission, hydraulic transmission, hydrostatic transmission. The gearbox has manual gear shifting and power gear shifting, and the structure has a fixed shaft type and a planetary type.

After the existing gearbox body is assembled, because the box body is assembled, the fatigue life or the structure is short, and because the sealing element is aged and other reasons, the oil leakage phenomenon often appears in the bearing hole on the box body, the use effect is poor, the maintenance is inconvenient, and great inconvenience is brought to the automobile in the use process.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application mainly provides an automobile transmission case, which can increase the sealing performance of the case and prevent oil leakage during the use of the transmission.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides an automobile transmission box, includes the box body and sets up the dead eye on the box body, a through-hole has been seted up on the box body, coaxial fixed connection is provided with a pylon in the through-hole, the pylon is followed box body inner wall inwards extends there is an extension section, the dead eye sets up the center of pylon, be provided with at least one sealed annular groove that is used for holding ring type in the extension section, the pylon includes pylon and lower pylon, pylon and lower pylon all are half cylinder type and both closely cooperate each other and form the pylon, first half annular has been seted up in the pylon, second half annular has been seted up in the lower pylon, first half annular and second half annular groove are located the coplanar and make up and form sealed annular groove.

Furthermore, rib plates used for reinforcing the column base are arranged on the periphery of the column base.

Further, an air pressure hole is formed in the outer wall of the column base, the air pressure hole extends to the annular groove from the outer wall of the column base and is communicated with the annular groove, and the axis of the air pressure hole coincides with the center of the annular groove.

Further, the length of the column platform extending inwards along the inner wall of the box body is 10 mm-50 mm.

Further, the box body comprises an upper box body and a lower box body, an upper combining surface matched with the lower box body is formed at the lower end of the upper box body, and a lower combining surface matched with the upper box body is formed at the upper end of the lower box body.

Further, an oil drain hole is formed in the bottom of the box body and sealed through a sealing device.

Further, the sealing device comprises a sealing sleeve and a bolt, the sealing sleeve is made of elastic materials and fixedly arranged in the oil drainage hole, and the inner side of the sealing sleeve is matched with the bolt through threads.

Furthermore, the outer end of the seal sleeve protrudes outwards along the outer side of the box body, and a clamping groove used for clamping the outer end of the seal sleeve is formed in one side, close to the box body, of the head of the bolt.

Further, the lower part of box body is provided with the dipstick that is used for measuring the oil mass degree of depth.

Furthermore, the lower part of the box body is provided with an overflow hole, and the inner side surface of the overflow hole is provided with internal threads.

The beneficial effects of the utility model reside in that: from this at the automobile in-process of traveling, the center pin constantly rotates, and box inner wall often can be swashed has a lot of gearbox oil in addition, and the gearbox oil of gearbox inner wall can carry out the oil leak of bearing cap department in the bearing hole through the rotation of center pin, along with the axial displacement of center pin to bearing cap department again. The utility model discloses gearbox box, the pylon is fixed to be set up in the box body, and the pylon is followed one section distance of box body inner wall internal extension, the gearbox oil of gearbox box inner wall then contacts with the center pin less, and the outer wall that directly passes through the pylon drops to the box in, because the center pin is more smooth, consequently has a small amount of gearbox oil to adhere to on the center pin, has reduced the possibility of oil leak.

Drawings

For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic structural diagram of the device of the present invention;

FIG. 2 is a schematic illustration of the position of the annular groove;

FIG. 3 is an enlarged view of FIG. 1 at A-A;

fig. 4 is an enlarged view of fig. 1 at B-B.

The reference numeral, box body 1, dead eye 2, through-hole 3, pylon 4, upper pylon 401, lower pylon 402, seal ring groove 5, first ring groove 501, second ring groove 502, floor 6, atmospheric pressure hole 7, oil drain hole 8, sealing device 9, seal cover 901, bolt 902, draw-in groove 10, oil gauge 11, overflow hole 12.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.

Fig. 1 is a schematic structural diagram of the device of the present invention, fig. 2 is a schematic position diagram of the annular groove, fig. 3 is an enlarged view of fig. 1 at a-a, and fig. 3 is an enlarged view of fig. 1 at B-B. The utility model discloses an automobile gearbox body, which comprises a box body 1 and a bearing hole 2 arranged on the box body 1, the box body 1 is provided with a through hole 3, a column base 4 is coaxially and fixedly connected in the through hole 3, the column base 4 extends inwards along the inner wall of the box body 1 to form an extension section, the bearing hole 2 is arranged at the center of the column base 4, at least one sealing ring groove 5 for accommodating an annular sealing ring is arranged in the extension section, the pillar stand 4 comprises an upper pillar stand 401 and a lower pillar stand 402, the upper pylon 401 and the lower pylon 402 are both semi-cylindrical and are closely matched with each other to form the pylon 4, a first semi-ring groove is arranged in the upper column base 401, a second semi-ring groove is arranged in the lower column base 402, the first semi-ring groove and the second semi-ring groove are located in the same plane and combined to form the sealing ring groove 5.

The utility model discloses the gearbox box, the fixed setting in box body 1 of post 4, the post 4 is followed one section distance of 1 inner wall of box body inwards extending, the gearbox oil of gearbox box inner wall then less contacts with the center pin, and direct outer wall through post 4 drops to the box in, because the center pin is more smooth, consequently has a small amount of gearbox oil to adhere to on the center pin, has reduced the possibility of oil leak, simultaneously, the utility model discloses the device, through setting up post 401 and lower post 402, when assembling ring type seal, can laminate each other between last post 401 and the lower post 402 and compress tightly, can give rather than certain pressure, make it be difficult to not hard up.

In this embodiment, rib plates 6 for reinforcing the column 4 are disposed around the column 4. The stability of the column base 4 can be increased, and the matching of the column base and the central shaft is more stable.

In this embodiment, atmospheric pressure hole 7 has been seted up on the outer wall of pillar stand 4, atmospheric pressure hole 7 extends to from the outer wall of pillar stand 4 the annular and with the annular intercommunication, the axis of atmospheric pressure hole 7 with the center coincidence of annular, because ring seal is elastic to its back and annular laminating, consequently at ring seal at the in-process that the assembly got into the annular, certain atmospheric pressure exists all the time in its outer wall and the inner wall of annular, causes easily that there is certain clearance between sealing washer and the annular, consequently through setting up atmospheric pressure hole 7, can avoid the existence of above-mentioned problem, can let more stable of ring seal assembly.

In this embodiment, the length of the pillar 4 extending inwards along the inner wall of the box body 1 is 10mm to 50 mm.

In this embodiment, the box body 1 includes an upper box 101 and a lower box 102, an upper combining surface matched with the lower box 102 is formed at the lower end of the upper box 101, and a lower combining surface matched with the upper box 101 is formed at the upper end of the lower box 102. The bottom of box body 1 is provided with oil drain hole 8, oil drain hole 8 is sealed through a sealing device 9, when there is certain oil mass in the box inside, then can be through 8 oil drains of oil drain hole, thereby reduce the possibility of oil leak of oil mass reduction. In this embodiment, the lower part of the box body 1 is provided with a fuel gauge 11 for measuring the depth of the fuel amount, which can be used for measuring the depth of the fuel amount.

In this embodiment, the sealing device 9 includes a sealing sleeve 901 and a bolt 902, the sealing sleeve 901 is made of an elastic material, the sealing sleeve 901 is fixedly disposed in the oil drain hole 8, and the inner side of the sealing sleeve 901 is in threaded fit with the bolt 902. The outer end of the sealing sleeve 901 protrudes outwards along the outer side of the box body 1, and a clamping groove 10 used for clamping the outer end of the sealing sleeve 901 is formed in one side, close to the box body 1, of the head of the bolt 902, so that the sealing effect is better. The lower part of the box body 1 is provided with an overflow hole 12, the inner side surface of the overflow hole 12 is provided with internal threads, and the overflow hole 12 can be connected to the clutch cover body through a pipeline and used for recycling oil.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides an automobile transmission box, includes the box body and sets up the dead eye on the box body, its characterized in that: the utility model discloses a novel box, including box body, pedestal, bearing hole, column base and column base, the through-hole has been seted up on the box body, coaxial fixed connection is provided with a column base in the through-hole, the column base is followed the inside extension of box body inner wall has one to extend the section, the dead eye is seted up the center of column base, be provided with at least one sealed annular that is used for holding ring type seal in the section of extension, the column base includes upper column base and lower column base, upper column base and lower column base all are half cylinder type and both closely cooperate each other and form the column base, set up first half annular in the upper column base, set up second half.

2. The vehicle transmission case of claim 1, wherein: and rib plates for reinforcing the column base are arranged around the column base.

3. The vehicle transmission case of claim 2, wherein: the outer wall of the column base is provided with an air pressure hole, the air pressure hole extends to the annular groove from the outer wall of the column base and is communicated with the annular groove, and the axis of the air pressure hole coincides with the center of the annular groove.

4. The vehicle transmission case of claim 3, wherein: the length of the column platform extending inwards along the inner wall of the box body is 10 mm-50 mm.

5. The vehicle transmission case of claim 1, wherein: the box body comprises an upper box body and a lower box body, an upper combining surface matched with the lower box body is formed at the lower end of the upper box body, and a lower combining surface matched with the upper box body is formed at the upper end of the lower box body.

6. The vehicle transmission case of claim 1, wherein: the bottom of the box body is provided with an oil drain hole, and the oil drain hole is sealed through a sealing device.

7. The vehicle transmission case of claim 6, wherein: the sealing device comprises a sealing sleeve and a bolt, the sealing sleeve is made of elastic materials, the sealing sleeve is fixedly arranged in the oil drainage hole, and the inner side of the sealing sleeve is in threaded fit with the bolt.

8. The vehicle transmission case of claim 7, wherein: the outer end of the sealing sleeve protrudes outwards along the outer side of the box body, and a clamping groove used for clamping the outer end of the sealing sleeve is formed in one side, close to the box body, of the head of the bolt.

9. The vehicle transmission case of claim 8, wherein: the lower part of box body is provided with the dipstick that is used for measuring the oil mass degree of depth.

10. The vehicle transmission case of claim 9, wherein: the lower part of the box body is provided with an overflow hole, and the inner side surface of the overflow hole is provided with internal threads.