CN216867450U

CN216867450U - Gearbox second speed gear structure capable of preventing jamming

Info

Publication number: CN216867450U
Application number: CN202220413491.2U
Authority: CN
Inventors: 邹德; 牟建红; 杨钢; 张天其; 李中
Original assignee: Chongqing Taiqi Gear Co ltd
Current assignee: Chongqing Taiqi Gear Co ltd
Priority date: 2022-02-28
Filing date: 2022-02-28
Publication date: 2022-07-01
Anticipated expiration: 2032-02-28

Abstract

The utility model discloses a gearbox second-speed gear structure capable of preventing jamming, and relates to the technical field of gearboxes, in particular to a gearbox second-speed gear structure capable of preventing jamming. This can prevent gearbox second speed gear structure that card dun, through setting up the lubrication groove along the rotatory direction of gear body, when lubricating oil was thrown away along with the rotation of gear body to one side, the lubrication groove that the slope set up can coincide with the orbit that lubricating oil was thrown to one side, more is favorable to the outflow of lubricating oil, through setting up the cone-shaped nozzle, speed can accelerate and can produce the efflux phenomenon when lubricating oil is located the blowout from the cone-shaped nozzle, can make lubricating oil expand and scatter, improve lubricated effect.

Description

Gearbox second speed gear structure capable of preventing jamming

Technical Field

The utility model relates to the technical field of gearboxes, in particular to a second-speed gear structure of a gearbox capable of preventing jamming.

Background

In order to adapt to different working conditions, the driving force and the speed of the automobile need to be changed within a certain range during running of the automobile, but the torque and the speed change range of the existing engine cannot meet the requirement, so that a gearbox is arranged and is a device for changing the rotating speed ratio and the moving direction. The torque, the rotating speed and the moving direction transmitted from the driving shaft to the driven shaft are changed according to different working conditions. Geared gearboxes generally consist of a housing and a number of gear pairs.

The second speed gear is installed in the variable case, in order to reach the purpose that changes the rotational speed, current second speed gear is in the course of the work, lubricated effect is not very good, the tooth friction is great when the meshing, will make the resistance of putting into gear rise greatly like this, thereby make the gear unsmooth, arouse the gearbox stuck, and lead to the quick wearing and tearing and ageing of tooth easily, shorten its life, the design of the oil groove of current gear is for radially extending along the gear simultaneously, when the gear is rotatory, be unfavorable for improving lubricated effect, the gearbox second speed gear structure that can prevent stuck is provided for this.

SUMMERY OF THE UTILITY MODEL

In view of the deficiencies of the prior art, the present invention provides a second speed gear structure of a transmission that prevents jamming, which solves the problems set forth in the background above.

In order to achieve the purpose, the utility model is realized by the following technical scheme: the utility model provides a can prevent gearbox second speed gear structure of card dun, includes the gear body, the outside fixedly connected with external tooth of gear body is one, scarf I has been seted up to the up end of external tooth is one, protruding circle on the inside fixedly connected with of gear body, the lubrication groove has been seted up to the inside of going up protruding circle, the outer end of lubrication groove is provided with the cone-shaped nozzle, protruding circle under the bottom fixedly connected with of gear body, the outside fixedly connected with external tooth of protruding circle two down.

Optionally, the oblique cutting surfaces are symmetrically distributed on the upper side and the lower side of the first external tooth teeth, and an included angle between the oblique cutting surfaces and the vertical surface is 60 degrees.

Optionally, the inner side surface of the gear body is fixedly connected with inner helical teeth.

Optionally, the top of the upper convex ring is provided with a butt joint groove, and the butt joint grooves are distributed symmetrically about the center of the upper convex ring.

Optionally, the lubricating oil groove is inclined towards the rotation direction of the gear body, the inclination angle of the lubricating oil groove is 30-60 degrees, and one end of the conical nozzle, which is close to the outer surface of the upper convex ring, is gradually narrowed inwards.

Optionally, a second chamfer plane is formed at the top of the second external tooth, and the angle of the second chamfer plane is 45 degrees.

The utility model provides a second-speed gear structure of a gearbox capable of preventing jamming, which has the following beneficial effects:

1. this can prevent gearbox second speed gear structure of card dun sets up scarf one and scarf two respectively through two up-and-down terminal surfaces at external tooth one and the up end of external tooth two, is favorable to meshing between the gear, avoids the in-process of shifting because gear engagement is not smooth the appearance card dun.

2. This can prevent gearbox second speed gear structure that blocks, set up the lubrication groove through the direction of following the gear body rotation, when lubricating oil was thrown along with the rotation of gear body to one side, the lubrication groove that the slope set up can coincide with the orbit that lubricating oil was thrown to one side, more be favorable to the outflow of lubricating oil, set up the cone-shaped nozzle through the end at the lubrication groove, because the cone-shaped nozzle is inwards narrowed gradually, speed can accelerate and can produce the efflux phenomenon when lubricating oil is spout from the cone-shaped nozzle like this, can make lubricating oil expand and scatter, improve lubricated effect, reduce the blocking of gearbox and block.

Drawings

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

FIG. 2 is a schematic view of another embodiment of the present invention;

FIG. 3 is a schematic view showing a structure of a lubricating oil sump according to the present invention;

fig. 4 is a schematic cross-sectional structure of the present invention.

In the figure: 1. a gear body; 2. a first external tooth; 21. a first chamfer plane; 3. inner helical teeth; 4. an upper convex ring; 5. a butt joint groove; 6. a lubricating oil groove; 61. a conical mouth; 7. a lower convex ring; 8. a second external tooth; 81. And a second chamfer surface.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 and fig. 4, the present invention provides a technical solution: the utility model provides a can prevent gearbox second speed gear structure that card is dun, including gear body 1, gear body 1's outside fixedly connected with external tooth 2, one 21 of scarf has been seted up to the up end of external tooth 2, one 21 symmetric distribution of scarf is in the upper and lower both sides of external tooth 2, one 21 of scarf is 60 with the contained angle of vertical face, set up one 21 of scarf through two upper and lower terminal surfaces at external tooth 2, be favorable to meshing between the gear, avoid unsmooth the card of appearing in the in-process of shifting because gear engagement, skewed tooth 3 in gear body 1's the medial surface fixedly connected with.

Referring to fig. 1 to 3, an upper convex ring 4 is fixedly connected to the inside of a gear body 1, a butt joint groove 5 is formed at the top of the upper convex ring 4, the butt joint groove 5 is centrally and symmetrically distributed with respect to the upper convex ring 4, a lubricating oil groove 6 is formed in the upper convex ring 4, the lubricating oil groove 6 inclines towards the direction of rotation of the gear body 1, the lubricating oil groove 6 is formed along the direction of rotation of the gear body 1, when lubricating oil is obliquely thrown out along with the rotation of the gear body 1, the obliquely-arranged lubricating oil groove 6 coincides with the obliquely-thrown track of the lubricating oil, so that the lubricating oil can flow out more easily, the inclination angle of the lubricating oil groove 6 is 30 to 60 degrees, a conical nozzle 61 is arranged at the outer end of the lubricating oil groove 6, one end of the conical nozzle 61 close to the outer surface of the upper convex ring 4 is gradually narrowed inwards, and the conical nozzle 61 is gradually narrowed inwards, so that the speed of the lubricating oil is increased and a jet phenomenon can be generated when the lubricating oil is sprayed from the conical nozzle 61, lubricating oil can be spread, the lubricating effect is improved, and the jamming of the gearbox is reduced.

Referring to fig. 2 to 4, the bottom of the gear body 1 is fixedly connected with the lower convex ring 7, the outer portion of the lower convex ring 7 is fixedly connected with the second external teeth 8, the top of the second external teeth 8 is provided with the second chamfered surface 81, the angle of the second chamfered surface 81 is 45 degrees, and the second chamfered surface 81 is arranged on the top of the second external teeth 8, so that the gears can be meshed with each other, and the gear can be prevented from being blocked due to unsmooth meshing in the gear shifting process.

In conclusion, this can prevent gearbox second speed gear structure of card pause, during the use, set up chamfer one 21 and chamfer two 81 respectively through two upper and lower terminal surfaces at external tooth one 2 and the up end of external tooth two 8, avoid the in-process of shifting because gear engagement is not smooth to appear blocking pause, be favorable to meshing between the gear, set up lubrication groove 6 through the direction of following gear body 1 rotation, more be favorable to the outflow of lubricating oil, and because taper mouth 61 narrows down inwards gradually, speed can accelerate and can produce efflux phenomenon when lubricating oil is spout from taper mouth 61 like this, can make lubricating oil expand and scatter, improve lubricated effect, can.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A gearbox second speed gear structure capable of preventing jamming comprises a gear body (1), and is characterized in that: the outside fixedly connected with external tooth of gear body (1) (2), scarf one (21) has been seted up to the up end of external tooth (2), protruding circle (4) on the inside fixedly connected with of gear body (1), lubrication groove (6) have been seted up to the inside of going up protruding circle (4), the outer end of lubrication groove (6) is provided with cone-shaped nozzle (61), protruding circle (7) under the bottom fixedly connected with of gear body (1), the outside fixedly connected with external tooth two (8) of protruding circle (7) down.

2. A gear box secondary speed gear structure for preventing seizure as defined in claim 1, wherein: the first inclined cutting surfaces (21) are symmetrically distributed on the upper side and the lower side of the first external teeth (2), and the included angle between the first inclined cutting surfaces (21) and the vertical surface is 60 degrees.

3. A gear box secondary speed gear structure for preventing seizure as defined in claim 1, wherein: the inner side surface of the gear body (1) is fixedly connected with inner helical teeth (3).

4. A gear box secondary speed gear structure for preventing seizure as defined in claim 1, wherein: the top of the upper convex ring (4) is provided with a butt joint groove (5), and the butt joint groove (5) is distributed in a central symmetry mode about the upper convex ring (4).

5. A gear box secondary speed gear structure for preventing seizure as defined in claim 1, wherein: the lubricating oil groove (6) inclines towards the rotating direction of the gear body (1), the inclination angle of the lubricating oil groove (6) is 30-60 degrees, and one end, close to the outer surface of the upper convex ring (4), of the conical nozzle (61) is gradually narrowed inwards.

6. A gear box secondary speed gear structure for preventing seizure as defined in claim 1, wherein: the top of the second external tooth (8) is provided with a second inclined plane (81), and the angle of the second inclined plane (81) is 45 degrees.