CN221857472U - A gear shifting mechanism housing and gear shifting mechanism - Google Patents

Abstract

The utility model provides a box body of a gear shifting mechanism and the gear shifting mechanism, wherein the box body of the gear shifting mechanism comprises: a body; the body is provided with at least two accommodation grooves, the accommodation grooves are used for accommodating a shifting fork structure of a shifting mechanism, a first material reduction groove is arranged between the accommodation grooves and adjacent to the accommodation grooves, a second material reduction groove is further arranged on the body, high-pressure casting is integrally adopted, the first material reduction groove and the second material reduction groove are beneficial to optimizing the wall thickness of the body, the wall thickness of the body is thinner, the rapid cooling is realized, the production efficiency is high, and the deformation is small. A drain hole is formed in the first material reduction groove and communicated to the outer side face of the body. Compared with the prior art, the box body of the gear mechanism has the advantages that the pollution discharge hole is formed in the first material reduction groove, so that the problem of pollution accumulation in the first material reduction groove is avoided, the integral structure of the body is stable and simple, the position of the pollution discharge hole is reasonable, and the influence of corrosion on the service life of the gear mechanism structure caused by pollution accumulation in the first material reduction groove can be avoided.

Description

A gear shifting mechanism housing and gear shifting mechanism

Technical Field

The utility model relates to the technical field of gear shifting, in particular to a box body of a gear shifting mechanism and the gear shifting mechanism.

Background Art

The transmissions used in pure electric, hybrid and other new energy vehicles usually have many gears, such as four or six gears. The actuators that control the shifting of such multi-speed transmissions are installed on the transmission housing, and the transmission structure is adjusted through the shift fork structure to achieve the shifting of the transmission.

In order to facilitate quick gear shifting, two gears of the transmission are usually controlled by one actuator. A four-speed transmission, a six-speed transmission and other multi-speed transmissions require at least two actuators for gear shifting operations. Each actuator is connected to a fork structure, so multiple accommodating grooves are designed on the housing, and the fork structures are installed in the accommodating grooves accordingly. On the housing, the wall thickness between two adjacent accommodating grooves is too thick, resulting in the overall housing being too heavy. For this reason, a material reduction groove is set between adjacent accommodating grooves. However, the current material reduction groove is too deep and easily accumulates dirt, which affects the life of the housing. Excessive accumulation of dirt can also easily cause water to flow out of the material reduction groove, affecting the operation and life of the actuator and the fork structure.

Utility Model Content

The purpose of the utility model is to overcome the shortcomings and deficiencies in the prior art and to provide a case body of a shift mechanism and a shift mechanism.

An embodiment of the utility model provides a case of a shift mechanism, comprising: a body;

At least two accommodating grooves are arranged on the main body, and the accommodating grooves are used to accommodate the shift fork structure of the shift mechanism. A first material reduction groove is arranged between adjacent accommodating grooves, and a drainage hole is arranged in the first material reduction groove, and the drainage hole is connected to the outer side surface of the main body.

In some optional embodiments, the accommodating groove is formed with an extension opening for the fork structure to extend out on the first side of the main body, the first material reduction groove is formed with an opening on the second side of the main body, the first side of the main body and the second side of the main body are respectively opposite sides of the main body, and the sewage hole is connected to the outer side surface of the body located between the first side of the main body and the second side of the main body.

In some optional embodiments, the main body is provided with a plurality of second material reduction grooves on the outer surface between the first side of the main body and the second side of the main body, and the sewage discharge hole is connected to the second material reduction grooves.

In some optional embodiments, a boss is provided in the second material reducing groove, the boss gradually extends toward the opening of the second material reducing groove, and the orifice of the drain hole is located at the end of the boss.

In some optional embodiments, a plurality of drain holes are provided in the first material reduction tank.

In some optional embodiments, a plurality of drain holes are provided in the first material reduction tank, and different drain holes are connected to different second material reduction tanks.

In some optional embodiments, the drain holes are provided on at least two sides of the first material reduction trough.

In some optional embodiments, a reinforcement portion is further provided in the first material reduction trough.

In some optional embodiments, a plurality of mounting holes are provided on the main body, and the mounting holes pass through two opposite sides of the main body.

Another embodiment of the utility model provides a shift mechanism, comprising: a shift fork structure, an actuator assembly and a shift mechanism housing as described above, wherein the shift fork structure is arranged in a receiving groove of the shift mechanism housing, the actuator assembly is arranged on the main body of the shift mechanism housing and is transmission-connected to the shift fork structure.

Compared with the prior art, the box body of the shift mechanism of the utility model avoids the problem of dirt accumulation in the first material reduction groove by setting a drain hole in the first material reduction groove. The overall structure of the main body is stable and streamlined, and the position of the drain hole is reasonably set, which can avoid dirt accumulation in the first material reduction groove and corrosion that affects the life of the shift mechanism structure. The whole adopts high-pressure casting, and the first material reduction groove optimizes the wall thickness of the main body to ensure fast cooling, high production efficiency and small deformation.

In order to more clearly understand the present invention, the specific implementation of the present invention will be described below in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of one side of a housing of a shift mechanism according to an embodiment of the present invention;

FIG2 is a schematic diagram of the structure of the other side of the housing of the shift mechanism of one embodiment of the utility model;

FIG3 is a cross-sectional view of a housing of a shift mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a shift mechanism according to an embodiment of the present invention.

Description of reference numerals:

10. Main body; 11. Accommodating groove; 111. Extension opening; 112. Through opening; 12. First material reduction groove; 121. Drain hole; 122. Reinforcement portion; 13. Second material reduction groove; 131. Boss; 14. Mounting hole; 20. Fork structure; 30. Actuator assembly.

DETAILED DESCRIPTION

The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. In the description of the utility model, unless otherwise specified, "multiple" means 2 or more, and "several" means 1 or more. In addition, unless otherwise specified, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the description of the utility model, the description with reference to the terms "one embodiment", "some optional implementations" or "some optional embodiments" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Please refer to FIG. 1 , an embodiment of the present invention provides a housing of a shift mechanism, including a body 10 .

At least two accommodating grooves 11 are provided on the body 10, and the accommodating grooves 11 are used to accommodate the fork structure 20 of the shifting mechanism. Please refer to Figures 2 and 3 at the same time. A first material reduction groove 12 is provided between adjacent accommodating grooves 11, and a drainage hole 121 is provided in the first material reduction groove 12. The drainage hole 121 is connected to the outer side of the body 10. By providing the drainage hole 121 in the first material reduction groove 12, water, oil, etc. accumulated in the first material reduction groove 12 can be discharged to the outer side of the body 10 through the drainage hole 121, avoiding the problem of dirt accumulation in the first material reduction groove 12, and preventing the body 10 from being corroded and affecting the actuator 30 and the fork structure 20.

The main body 10 is cast by high pressure casting, and the first material reduction groove 12 makes the wall thickness of the main body 10 thinner, so as to achieve rapid cooling, high production efficiency and small deformation when producing the main body.

Please refer to FIG. 4 , the number of the accommodating grooves 11 corresponds to the number of the actuators 30 and the fork structures 20. For example, in this embodiment, when the shift mechanism is a four-speed shift structure, two accommodating grooves 11 can be provided on the body 10, a first material reduction groove 12 will be arranged on the body 10, each accommodating groove 11 is correspondingly provided with a fork structure 20, and the actuator 30 is arranged on the outside of the body 10 and is drivingly connected to the fork structure 20. Alternatively, in some other embodiments, when the shift mechanism is a six-speed shift structure, three accommodating grooves 11 can be provided on the body 10, two first material reduction grooves 12 will be arranged on the body 10, each accommodating groove 11 is correspondingly provided with a fork structure 20, and the actuator 30 is arranged on the outside of the body 10 and is drivingly connected to the fork structure 20, without limiting this example.

In some optional embodiments, the accommodating groove 11 is formed with an extension port 111 for the fork structure 20 to extend out on the first side of the body 10, and the first material reduction groove 12 is formed with an opening on the second side of the body 10. The first side of the body 10 and the second side of the body 10 are the opposite sides of the body 10 respectively. The drainage hole 121 is connected to the outer side surface of the body 10 between the first side of the body 10 and the second side of the body 10. The position of the drainage hole 121 is reasonably designed. The orifice of the drainage hole 121 is located on the side surface outside the first side and the second side of the body 10, thereby preventing the discharged water from entering the accommodating groove 11 from the extension port 111, or returning to the first material reduction groove 12 from the opening of the first material reduction groove 12. In this embodiment, the accommodating groove 11 is also provided with a through port 112 for the actuator 30 to pass through on the third side of the body 10, and the through port 112 is arranged on the outer side surface of the body 10 between the first side of the body 10 and the second side of the body 10. For example, the first side is the front side of the body 10 , and the second side is the rear side of the body 10 , and the drain hole 121 is connected to one of the upper side, the lower side, the left side, and the right side of the body 10 .

The actuator 30 of the shift mechanism is usually an electric cylinder, a hydraulic cylinder or a pneumatic cylinder. The actuator 30 is connected to the fork structure 20 and can drive the fork structure 20 to swing, thereby realizing the shifting operation of the transmission. Of course, the structure of the actuator 30 and the movement mode of the fork structure 20 are not limited to this. Those skilled in the art can also choose other suitable designs according to the teachings of the utility model, without limitation to this example.

In some optional embodiments, the body 10 is provided with a plurality of second material reduction grooves 13 on the outer surface between the first side of the body 10 and the second side of the body 10, and the drain hole 121 is connected to the second material reduction groove 13. The design of the second material reduction groove 13 can reduce the weight of the body 10. The position of the second material reduction groove 13 can be designed according to actual needs. For example, the first side is the front side of the body 10, and the second side is the rear side of the body 10. The second material reduction groove 13 can be arranged on at least one side of the upper side, the lower side, the left side, and the right side of the body 10. Due to the obstruction of the accommodating groove 11, the second material reduction groove 13 is shallower than the first material reduction groove 12, and it is not easy to accumulate dirt. The drain hole 121 is connected to the second material reduction groove 13, which is convenient for draining dirt and also helps to shorten the length of the drain hole 121.

The second material reduction groove 12 makes the wall thickness of the main body 10 thinner, so as to achieve rapid cooling, high production efficiency and small deformation when producing the main body 10.

In some optional embodiments, a boss 131 is provided in the second material reduction trough 13, and the boss 131 gradually extends toward the opening of the second material reduction trough 13. The orifice of the drain hole 121 is located at the end of the boss 131, so as to facilitate the extension of the drain hole 121 to the opening of the second material reduction trough 13, facilitate sewage discharge, and help avoid the accumulation of water discharged from the drain hole 121 in the second material reduction trough 13.

In some optional embodiments, a plurality of drainage holes 121 are provided in the first material reduction tank 12, so as to facilitate the removal of accumulated dirt at different positions of the first material reduction tank 12, improve the efficiency of drainage, and reduce dead corners prone to dirt accumulation.

In some optional embodiments, different drain holes 121 are connected to different second material reduction tanks 13, so as to facilitate the dispersed discharge of accumulated dirt in the first material reduction tank 12, and avoid all accumulated dirt being discharged from a single drain hole 121, resulting in excessive discharge of dirt at a certain location, resulting in poor drainage effect.

In some optional embodiments, the first material reduction tank 12 is provided with drainage holes 121 on at least two sides, thereby improving the drainage effect and reducing dead corners where dirt is easily accumulated. In this embodiment, the drainage holes 121 are close to the bottom of the first material reduction tank 12, so as to facilitate the discharge of dirt accumulated in the first material reduction tank 12. Of course, the drainage holes 121 can also be directly provided at the bottom of the first material reduction tank 12, without limiting this example.

Due to the design of the first material reducing groove 12, the wall thickness between the receiving groove 11 and the first material reducing groove 12 is relatively thin, which is easy to deform. Therefore, in some optional embodiments, a reinforcement portion 122 is also provided in the first material reducing groove 12, and the reinforcement portion 122 is used to strengthen the structure of the first material reducing groove 12 to prevent the receiving groove 11 from deforming near the inner wall of the first material reducing groove 12.

In some optional embodiments, a plurality of mounting holes 14 are provided on the main body 10 , and screws can pass through the mounting holes 14 to facilitate fixation of the main body 10 . The mounting holes 14 run through opposite sides of the main body 10 to avoid dirt accumulation inside the mounting holes 14 .

The above-mentioned gear shift mechanism housing can be applied to a gear shift mechanism, which includes: a shift fork structure 20, an actuator 30, and a gear shift mechanism housing as described above, wherein the shift fork structure 20 is disposed in the receiving groove 11 of the gear shift mechanism housing, and the actuator 30 is disposed on the body 10 of the gear shift mechanism housing and is transmission-connected to the shift fork structure 20. The structures of the shift fork structure 20 and the actuator 30 are well known to those skilled in the art, and will not be described in detail herein.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A case of a shift mechanism, comprising: a body;

The automatic transmission device is characterized in that at least two accommodating grooves are formed in the body, the accommodating grooves are used for accommodating shifting fork structures of a shifting mechanism, a first material reduction groove is formed between the adjacent accommodating grooves, a sewage draining hole is formed in the first material reduction groove, and the sewage draining hole is communicated to the outer side face of the body.

2. A gear shift mechanism housing according to claim 1, wherein: the holding groove is in the first side of body is formed with the mouth that stretches out that supplies the shift fork structure to stretch out, first subtracting the silo is in the second side of body is formed with the opening, the first side of body with the second side of body is respectively the opposite both sides of body, the blowdown hole intercommunication to the body is located the first side of body with the lateral surface between the second side of body.

3. A gear shift mechanism housing according to claim 2, wherein: the body is provided with a plurality of second and subtracts the silo on the lateral surface between the first side of body and the second side of body, the blowdown hole intercommunication to in the second subtracts the silo.

4. A gear shift mechanism housing according to claim 3, wherein: the second subtracting inslot is provided with the boss, the boss gradually to the opening of second subtracting inslot extends, the drill way of blowoff hole is located the tip of boss.

5. A gear shift mechanism housing according to any one of claims 1 to 4, wherein: a plurality of drain holes are formed in the first material reduction groove.

6. A gear shift mechanism housing according to claim 3, wherein: a plurality of blow-down holes are formed in the first material reduction groove, and different blow-down holes are communicated to different second material reduction grooves.

7. A gear shift mechanism housing according to any one of claims 1 to 4, wherein: at least two sides of the first material reduction groove are provided with the sewage draining holes.

8. A gear shift mechanism housing according to any one of claims 1 to 4, wherein: and a reinforcing part is further arranged in the first material reduction groove.

9. A gear shift mechanism housing according to any one of claims 1 to 4, wherein: the body is provided with a plurality of mounting holes, and the mounting holes penetrate through two opposite sides of the body.

10. A gear shift mechanism, comprising: a fork structure, an actuating assembly and a box of a gear shifting mechanism according to any one of claims 1 to 9, wherein the fork structure is arranged in a containing groove of the box of the gear shifting mechanism, and the actuating assembly is arranged on a body of the box of the gear shifting mechanism and is in transmission connection with the fork structure.