CN212148261U - Half shaft movable joint, half shaft, power assembly and vehicle - Google Patents

Abstract

The utility model belongs to the vehicle spare part field discloses a semi-axis removes festival, semi-axis, power assembly and vehicle, semi-axis removes festival (1) and includes casing (11), be equipped with extracting tool's the structure of exerting oneself on casing (11), the surface of the structure of exerting oneself does not outstanding casing (11). The utility model discloses add the recess that convenient to detach instrument is exerting oneself on removing the festival casing, solved the unable problem of exerting oneself in big inclined plane of the semi-axis sliding closure of current structure, as long as insert the recess with extracting tool and can dismantle the semi-axis sliding closure convenient and fast, labour saving and time saving.

Description

Half shaft movable joint, half shaft, power assembly and vehicle

Technical Field

The utility model belongs to the vehicle spare part field specifically, relates to a semi-axis removes festival, semi-axis, power assembly and vehicle.

Background

The half shaft moving joint belongs to a part of the half shaft and is connected with the output end of the speed changer. Each half shaft is provided with a half shaft moving joint, and the whole vehicle is divided into a left half shaft and a right half shaft. The half shaft movable joint is a process for disassembling the half shaft from the whole vehicle, and is used for maintaining/replacing the half shaft or a power assembly.

At present, the torque of an engine is generally larger, the capacity of bearing the torque of a half shaft needs to be larger, the external dimension of the half shaft is larger, and the arrangement space left for the half shaft is very limited, so that the structure of a half shaft moving joint is required to be compact. However, the half shaft is a high-speed rotating member, and a certain clearance is required to be left between the half shaft and the peripheral member, and if the clearance does not meet the design requirement, the problem of interference and damage to the transmission occurs. In order to solve the contradiction that the arrangement space of the half shaft movable joint is limited but a gap is still left between the half shaft movable joint and a peripheral part (such as an engine cylinder), in order to avoid the peripheral part, the outline and the size of the half shaft movable joint need to be optimized, and a part of the end surface of a shell of the half shaft movable joint is cut off to enlarge an inclined surface, so that the structural strength is not influenced, and the improved gap between the end surface and the peripheral part can also meet the design requirement. However, this entails a further problem in that rapid disassembly of the half-shaft mobile joint is difficult because of the lack of suitable points of attack on the inclined surfaces of the housing.

In addition, in order to reduce the oil consumption of the vehicle, the requirement on the lightweight of parts is more and more strict, and because the half shaft directly bears the torque, the structural strength of the half shaft is influenced by the lightweight improvement of the half shaft, and certain potential safety hazards are caused. At present, no effective technical measure for solving the contradiction exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a semi-axis removes festival through add the structure that can put forth effort on current removal festival casing to convenient to detach.

In order to achieve the above object, in a first aspect, the present invention provides a half axle movable joint, including a housing, a force applying structure of a disassembling tool is arranged on the housing, and the force applying structure does not protrude out of the outer surface of the housing.

Further, the force application structure is recessed in the outer surface of the shell.

Further, the force application structure is at least one groove.

Further, the grooves are six, every two grooves are arranged side by side along the axial direction of the shell to form a group, and three groups of grooves are uniformly arranged along the circumferential direction of the shell.

Further, the groove has a plateau-shaped profile.

Furthermore, the inside block structure who matches with extracting tool that is equipped with of recess.

Further, the clamping structure is a clamping groove.

In a second aspect, the present invention provides a half shaft, including any one of the above technical solutions of the first aspect.

In a third aspect, the present invention provides a power assembly, including the half shaft of the second aspect.

In a fourth aspect, the present invention provides a vehicle comprising the powertrain of the third aspect.

Through the technical scheme, on the one hand, the groove which is convenient for the dismounting tool to exert force is additionally arranged on the moving joint shell, the problem that the large inclined plane of the existing structure half shaft moving joint cannot exert force is solved, the half shaft moving joint can be dismounted conveniently and quickly by only inserting the dismounting tool into the groove, and time and labor are saved. On the other hand, set up the recess and equallyd divide a part of entity structure, can alleviate the quality of semi-axis sliding joint itself naturally like this, reach the effect of spare part lightweight, because the recess sets up on the sliding joint casing, can not produce any adverse effect to the structural strength of the sliding joint body of direct load.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a half-axle moving joint of the present invention;

FIG. 2 is a schematic cross-sectional structure at the location of the groove of FIG. 1;

FIG. 3 is a schematic view of a conventional half-axle movable joint disassembled by a common crowbar;

FIG. 4 is a schematic view of the half-axle movable joint of the present invention disassembled by a common crowbar;

fig. 5 is a schematic diagram of the half-axle moving joint of the present invention disassembled by a special disassembling tool.

Description of the reference numerals

A half shaft moving joint 1; a housing 11; a groove 12; a bevel 13; a common crowbar 2; a special removal tool 3.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

It should be noted that, in the following description of the technical solutions of the present invention, the orientation or positional relationship indicated by the orientation word "outer surface" is used as the orientation or positional relationship shown in the drawings, and is only for convenience of description of the present invention and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the present invention, "axial" refers to the direction of extension of the axis of the housing 11, and "circumferential" refers to the direction around the outer circumference of the housing 1.

As shown in fig. 1, the first aspect of the present invention is an embodiment of a half-axle movable joint 1, which includes a housing 11, and the housing 11 is provided with a force application structure of a disassembling tool, the force application structure does not protrude from the outer surface of the housing 11, and specifically, as a preferred embodiment, the force application structure may employ a groove 12 shown in fig. 1. The opening position of the groove 12 is on the outer surface of the housing 11, and the whole groove 12 is recessed in the outer surface of the housing 11, i.e. does not protrude from the outer surface of the housing 11, and extends from the outer surface thereof all the way to the inside, and the depth can reach the moving joint body. Thus, although the acting structure belongs to a structure newly added on the shell 11, the structure is realized by hollowing out a part of the shell 11, the external dimension and the mass of the shell 11 are not increased, but the mass is reduced, on one hand, the arrangement space of the half-shaft movable joint 1 is not influenced, on the other hand, the weight of the half-shaft movable joint 1 is favorably reduced, and the original function is not influenced while a new functional structure is added. Of course, the structural form of the groove 12 itself may be various, and the three-dimensional profile thereof may be a boss type, or may be other shapes, such as a local rectangle, a trapezoid, or a circular ring, and for the case 11 with a compact outer size, a boss may be adopted, and the specific profile shape is determined according to the outer size and the wall thickness of the case 11, so as not to affect the structural strength of the groove 12.

As shown in fig. 1 and 2, in an embodiment of the first aspect of the present invention, the number of the grooves 12 is six, every two grooves 12 are arranged side by side along the axial direction of the housing 11 to form a group, and three groups of the grooves 12 are uniformly arranged along the circumferential direction of the housing 11. The number of the grooves 12 is increased to correspond to different crowbar fulcrums on the transmission shell, namely different grooves 12 at appropriate positions are selected for different crowbar fulcrums. The housing 11 itself is rotatable and the position of the recess 12 can be adjusted by manually turning the housing 11. The grooves 12 are evenly distributed in the circumferential direction to avoid unbalanced mass of the half shaft moving joint 1 and avoid vibration during high-speed rotation.

For better cooperation with the special dismounting tool 3, the recess 12 may be provided with a snap-fit structure, such as a snap-fit groove, which is specially matched with the special dismounting tool 3, and the specific size of the snap-fit groove is matched with the size of the special dismounting tool 3.

Fig. 3 is a schematic diagram of the principle of using a common crowbar 2 to disassemble a conventional half-shaft moving joint, wherein the disassembling force is in the rightward direction in fig. 3, namely, the half-shaft moving joint 1 is moved rightward during the disassembling. Because the inclined plane 13 at the end part of the half-shaft moving joint is an inclined smooth surface, an effective detaching acting point is difficult to find on the inclined plane 13 directly by the common crowbar 2, and the detaching is time-consuming and labor-consuming.

As shown in fig. 4, adopt ordinary crowbar 2 to dismantle during the semi-axis removes festival 1, insert the head of ordinary crowbar 2 in recess 12, the square head department of ordinary crowbar 2 holds the application of force point, applys hand power left, and the sled rod end of card income in recess 12 is the stress point, and the middle section of ordinary crowbar 2 is the fulcrum with the contact point of derailleur casing, and the dismantlement power right like this makes semi-axis remove festival 1 and moves right and pull it down.

As shown in fig. 5, adopt special extracting tool 3 to dismantle semi-axis sliding section 1 in the embodiment of the utility model, insert corresponding recess 12 respectively with two forked heads of special extracting tool 3 in, need not the fulcrum, hold special extracting tool 3 right-hand member and pull right and carry out the application of force, pull out semi-axis sliding section 1 from the derailleur with the hand.

On the basis of the embodiment of the half-axle movable joint, the embodiment of the half-axle of the second aspect of the present invention includes the above half-axle movable joint, and therefore has all the advantages brought by the technical solution of the embodiment of the half-axle movable joint. In a similar way, the utility model discloses the powertrain of third aspect includes the semi-axis of second aspect, and the vehicle of fourth aspect includes the powertrain of third aspect, also has all beneficial effects that above-mentioned technical scheme of semi-axis sliding joint embodiment brought at least.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto. In the technical idea scope of the present invention, it is possible to provide the technical solution of the present invention with a plurality of simple modifications, including combining each specific technical feature in any suitable manner, and in order to avoid unnecessary repetition, the present invention does not provide additional description for various possible combinations. These simple variations and combinations should also be considered as disclosed in the present invention, all falling within the scope of protection of the present invention.

Claims (10)

1. The half shaft movable joint comprises a shell (11) and is characterized in that a force application structure of a disassembling tool is arranged on the shell (11), and the force application structure does not protrude out of the outer surface of the shell (11).

2. The half-shaft moving joint as set forth in claim 1, wherein said force-exerting structure is recessed in an outer surface of said case (11).

3. The half-shaft moving joint as set forth in claim 2, wherein said force-applying structure is at least one groove (12).

4. The half-shaft moving joint according to claim 3, wherein the grooves (12) have six, two grooves (12) are arranged side by side at intervals in the axial direction of the case (11) to form one set, and three sets of grooves (12) are arranged uniformly in the circumferential direction of the case (11).

5. Half-shaft mobile joint according to claim 3 or 4, characterized in that said groove (12) has a convex profile.

6. Half-shaft mobile joint according to claim 3 or 4, characterized in that said recess (12) is internally provided with a snap-in structure matching with a removal tool.

7. The half-shaft moving joint as claimed in claim 6, wherein said engaging structure is a catch groove.

8. Half-shaft, characterized in that it comprises a half-shaft mobile joint (1) according to any one of claims 1 to 7.

9. A powertrain comprising the half shaft of claim 8.

10. A vehicle comprising the powertrain of claim 9.

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