CN216684078U

CN216684078U - Suspension structure capable of supporting transmission shaft

Info

Publication number: CN216684078U
Application number: CN202122761770.6U
Authority: CN
Inventors: 刘国兵; 成佳伟; 翁辉; 裴亦辰
Original assignee: Zhiji Automobile Technology Co Ltd
Current assignee: Zhiji Automobile Technology Co Ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-06-07
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a suspension structure capable of supporting a transmission shaft, which comprises a suspension bracket arranged on an engine shell, wherein a support hole is formed in the suspension bracket, the transmission shaft is rotatably supported in the support hole, a mounting ring is rotatably sleeved on the transmission shaft, a limiting block protruding outwards is arranged at one end of the mounting ring along the circumferential direction, the limiting block is embedded into the support hole through the mounting ring and is fixedly connected with the suspension bracket through the limiting block, and the suspension bracket is used for rotatably supporting the transmission shaft. Compared with the prior art, the utility model has the following advantages: the suspension bracket is used for supporting the transmission shaft, the original transmission shaft supporting bracket is eliminated, and the problem that the arrangement space of front cabin parts is increasingly tense is solved.

Description

Suspension structure capable of supporting transmission shaft

Technical Field

The utility model relates to an automobile suspension, in particular to a suspension structure capable of supporting a transmission shaft.

Background

The automobile power assembly suspension system is an elastic connecting piece between a power assembly and an automobile body/auxiliary frame and mainly used for supporting the weight of the power assembly, limiting the displacement of the power assembly under various working conditions, ensuring that the power assembly is in a stable state under various working conditions and attenuating the vibration transmitted to the automobile body by the excitation of the power assembly, so that the design quality of the suspension system has direct influence on the reliability and comfort of an automobile, and the structure of the suspension system is more diversified along with the increase of automobile types.

The suspension bracket is used as an important component of an automobile power assembly suspension system, and mainly is an elastic element for connecting the power assembly and an auxiliary frame, so that the vibration of an automobile body and a carriage can be relieved, and the stable operation of an automobile transmission device can be ensured. If the suspension bracket is not well designed, the suspension bracket cannot absorb the jolt of the vehicle in running, the engine vibrates during running, and the engine is easy to move back and forth during acceleration and braking of the vehicle, so that related parts are easy to break. Therefore, the design of the suspension bracket is crucial.

The propeller shaft is a member connecting the transmission/reducer and the drive wheels, and mainly functions to transmit power therebetween. When the transmission/reducer arrangement causes the moment arm of the transmission shaft part to be too long, a transmission shaft supporting bracket is required to be added on the engine shell for rotatably supporting the transmission shaft to bear part of the load.

Among the existing product, be suspension support and transmission shaft support separate design usually, two kinds of supports are two kinds of independent parts, and two kinds of independent supports are installed respectively on engine housing, and this kind of structural style has following defect:

1. at present, the arrangement space of a front cabin is increasingly tense due to pursuing the space in a vehicle, a suspension bracket and a transmission shaft belong to moving parts, and a certain dynamic clearance is required to be formed between the suspension bracket and surrounding parts in the space arrangement so as to ensure the normal movement of the moving parts; the suspension bracket and the transmission shaft supporting bracket are used as two independent parts, so that the whole occupied space is large, the problem that the whole arrangement space of the two brackets is insufficient frequently exists, and the problems that the dynamic clearance between the suspension bracket and surrounding parts is insufficient and the dynamic clearance between the transmission shaft and the surrounding parts is insufficient exist;

2. the existing product designs the suspension support and the transmission shaft support into two independent parts, has large overall weight and high cost, and is not beneficial to lightweight design and low-cost design.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provides a suspension structure capable of supporting a transmission shaft, wherein the transmission shaft is supported by a suspension bracket, the transmission shaft support bracket is eliminated, and the transmission shaft is directly integrated on the suspension bracket, so that the problem that the arrangement space of front cabin parts is increasingly tense is solved.

The utility model is realized by the following technical scheme:

the utility model provides a can support suspension structure of transmission shaft, is including installing the suspension support on engine housing, it has the supported hole to open on the suspension support, it has the transmission shaft to rotate the support in the supported hole, it is equipped with the collar to rotate the cover on the transmission shaft, collar one end is equipped with outside convex stopper along circumference, imbeds to the supported hole through the collar in to through stopper and suspension support fixed connection, realize that the suspension support supports the rotation of transmission shaft.

As an optimal scheme of the suspension structure capable of supporting the transmission shaft, one end of the limiting block of the mounting ring belt is arranged as a rear end, the other end of the limiting block is arranged as a front end, the supporting hole of the suspension bracket is a stepped hole with a small front part and a large rear part, a limiting step is formed between the large-aperture section and the small-aperture section of the supporting hole, the shape of the outer side wall of the mounting ring is matched with the shape of the inner side wall of the supporting hole, a clearance fit is formed between the outer side wall and the supporting hole, and the limiting block at the rear end of the mounting ring is lapped on the suspension bracket and is fixedly connected with the suspension bracket.

As a preferred scheme of the suspension structure capable of supporting the transmission shaft, at least two first mounting holes and at least one positioning pin are arranged on a limiting block of the mounting ring, at least two second mounting holes corresponding to the at least two first mounting holes one to one are arranged on the suspension bracket, at least one positioning hole matched with the at least one positioning pin is arranged on the suspension bracket, the axial line of each first mounting hole and the axial line of each positioning hole are parallel to the axial line of the corresponding supporting hole, and the circumferential positioning of the limiting block is realized through the matching of the positioning pin and the positioning hole; the bolts sequentially penetrate through the first mounting holes and the corresponding second mounting holes and then nuts are screwed, so that the limiting blocks of the mounting rings are fixedly connected with the suspension support.

As a preferable scheme of the suspension structure capable of supporting the transmission shaft, a surface of the suspension bracket, which is overlapped with the limiting block of the mounting ring, is an overlapped surface, a surface of the limiting block, which faces the overlapped surface, is an overlapping surface, and the overlapping surface and the overlapped surface are both flat surfaces and are in contact with each other.

As a preferable scheme of the suspension structure capable of supporting the transmission shaft, the mounting ring is rotatably sleeved on the transmission shaft through a bearing.

As an optimal scheme of the suspension structure capable of supporting the transmission shaft, two first mounting holes and one positioning pin are arranged on the limiting block of the mounting ring, two second mounting holes corresponding to the two first mounting holes one to one are arranged on the suspension bracket, and one positioning hole matched with one positioning pin is arranged on the suspension bracket.

As a preferable scheme of the suspension structure capable of supporting the transmission shaft, the positioning hole on the suspension bracket is a blind hole.

As a preferable scheme of the suspension structure capable of supporting the transmission shaft, the suspension bracket is provided with a bushing mounting hole, the bushing mounting hole is located on one side of the support hole and is parallel to an axial line of the support hole, a bushing is installed in the bushing mounting hole of the suspension bracket in a pressing manner, and a third mounting hole is formed in the center of an inner core of the bushing and is connected with the auxiliary frame through the third mounting hole.

As a preferable scheme of the suspension structure for supporting the transmission shaft, the suspension bracket is provided with an engine mounting plate perpendicular to the axis of the support hole on one side of the support hole, and the suspension bracket is connected with the engine shell through the engine mounting plate.

As a preferable scheme of the suspension structure capable of supporting the transmission shaft, four engine mounting holes and two engine positioning holes are formed in the engine mounting plate.

Compared with the prior art, the utility model has the following advantages:

1. according to the suspension structure capable of supporting the transmission shaft, the original transmission shaft support bracket is omitted, the transmission shaft is supported through the suspension bracket, so that the arrangement of the two parts is more compact, less space is occupied, the problem that the arrangement space of the front cabin part is increasingly tense is solved, and the problem that the dynamic clearance between the suspension bracket or the transmission shaft and the surrounding parts is insufficient is solved;

2. according to the suspension structure capable of supporting the transmission shaft, the original transmission shaft support bracket is omitted, the transmission shaft is directly supported through the suspension bracket, namely, the transmission shaft and the suspension bracket are integrated together, so that the overall weight is reduced, the overall cost is reduced, and the low-cost design and the light-weight design are facilitated;

3. the utility model provides a suspension structure capable of supporting a transmission shaft, wherein a mounting ring is rotatably sleeved on the transmission shaft, the mounting with a suspension bracket is realized through the mounting ring, and the axial limiting of the mounting ring is realized by designing a supporting hole of the suspension bracket as a step hole and matching with a step surface on the outer side wall of the mounting ring; the positioning pin is matched with the positioning hole, so that the circumferential positioning of the limiting block is realized; therefore, the accuracy of the relative positions of the transmission shaft and the suspension bracket in the axial direction and the circumferential direction is ensured; the mounting ring is fixedly connected with the suspension bracket through the bolts, so that the mounting accuracy and stability of the mounting ring and the suspension bracket are further ensured;

4. according to the suspension structure capable of supporting the transmission shaft, the overlapped surface on the suspension bracket and the overlapping surface of the limiting block are both planes, so that the two parts are better jointed, and the problem of relative abnormal sound caused by the shake of the two parts in the driving process of a vehicle is avoided.

Drawings

FIG. 1 is a perspective assembly view of a suspension bracket and drive shaft of the present invention;

FIG. 2 is a perspective view of the suspension mount of the present invention;

FIG. 3 is a perspective view of the drive shaft of the present invention;

fig. 4 is a side view of the suspension bracket of the present invention.

Reference numbers in the figures: 1. a suspension bracket; 2. an engine mounting hole; 3. an engine positioning hole; 4. a support hole; 5. a drive shaft; 6. a bearing; 7. a mounting ring; 8. a limiting block; 9. a limiting step; 10. a step surface; 11. a lapping surface; 12. a lapped surface; 13. a first mounting hole; 14. positioning pins; 15. a second mounting hole; 16. positioning holes; 17. a bushing.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 4, the present embodiment discloses a suspension structure that can support a propeller shaft, including a suspension bracket 1 mounted on an engine case. In this embodiment, the suspension bracket 1 is an aluminum alloy bracket. The suspension bracket 1 is provided with a supporting hole 4, and a transmission shaft 5 is rotatably supported in the supporting hole 4. The suspension bracket 1 is provided with an engine mounting plate which is vertical to the axial lead of the support hole 4 at one side of the support hole 4, and the suspension bracket 1 is connected with the engine shell through the engine mounting plate. The engine mounting plate is provided with four engine mounting holes 2 and two engine positioning holes 3, the four engine mounting holes 2 are positioned at four corners of the engine mounting plate, and the two engine positioning holes 3 are respectively positioned at one side of two adjacent engine mounting holes 2. The two engine positioning holes 3 are matched with two engine positioning pins on the engine shell to realize the positioning of the suspension bracket 1 and the engine shell; the four bolts respectively pass through the four engine mounting holes 2 and are screwed on the engine shell, so that the suspension bracket 1 can be accurately mounted on the engine shell, and the accuracy of the mounting position of the suspension bracket 1 on the engine shell is ensured.

It has the bush mounting hole to open on the suspension support 1, the bush mounting hole is located support hole 4 one side, and the axial lead of bush mounting hole and support hole 4 parallels, bush 17 is equipped with to the bush mounting hole middling pressure of suspension support 1, the design has four lightening holes on the inner core of bush 17, adopt interference fit to assemble between bush 17 and the bush mounting hole, open at the inner core center of bush 17 has the diameter to be 15 mm's third mounting hole, the coaxial axle center of third mounting hole and bush mounting hole, be connected with the sub vehicle frame through the third mounting hole, during the installation, install the linking bridge of sub vehicle frame in the third mounting hole.

The transmission shaft 5 is rotatably sleeved with a mounting ring 7 through a bearing 6. Installing ring 7 one end is equipped with outside convex stopper 8 along circumference, and the one end of establishing installing ring 7 and having stopper 8 is the rear end, the other end is the front end, through installing ring 7 embedding to support hole 4 to through stopper 8 and suspension support 1 fixed connection, realize suspension support 1 to the rotation support of transmission shaft 5.

In this embodiment, the support hole 4 of the suspension bracket 1 is a stepped hole with a small front and a large rear, the depth of the support hole 4 in the front-rear direction is 58mm, the diameter of the large-diameter section of the support hole 4 is 68.5mm, and the diameter of the small-diameter section of the support hole 4 is 66.5 mm. A limit step 9 is formed between the large-aperture section and the small-aperture section of the support hole 4, the shape of the outer side wall of the mounting ring 7 is matched with that of the inner side wall of the support hole 4, and the mounting ring and the inner side wall are in clearance fit. The axial position of the mounting ring 7 can be limited by the matching of the step surface 10 on the outer side wall of the mounting ring 7 and the limiting step 9 on the inner side wall of the supporting hole 4.

The limiting block 8 at the rear end of the mounting ring 7 is lapped on the suspension bracket 1 and is fixedly connected with the suspension bracket 1. The face of the suspension bracket 1 overlapped with the limiting block 8 of the mounting ring 7 is a lapped face 12, the face of the limiting block 8 facing the lapped face 12 is a lapping face 11, and the lapping face 11 and the lapped face 12 are both planes and are in mutual contact. The structural form of plane joint is adopted, so that the better joint of the two parts is ensured, and the problem of relative abnormal sound caused by the shaking of the two parts in the driving process of the vehicle is avoided.

At least two first mounting holes 13 and at least one positioning pin 14 are arranged on a limiting block 8 of the mounting ring 7, at least two second mounting holes 15 corresponding to the at least two first mounting holes 13 one to one are arranged on the suspension bracket 1, at least one positioning hole 16 matched with the at least one positioning pin 14 is arranged on the suspension bracket 1, the positioning hole 16 is a blind hole, and the axial lead of the first mounting hole 13 and the axial lead of the positioning hole 16 are both parallel to the axial lead of the support hole 4.

In this embodiment, two first mounting holes 13 and a positioning pin 14 are arranged on the limiting block 8, two second mounting holes 15 corresponding to the two first mounting holes 13 one to one and a positioning hole 16 matched with the positioning pin 14 are arranged on the suspension bracket 1, and the diameter of the positioning pin 14 is 6 mm. Through the cooperation of locating pin 14 and locating hole 16, realized the circumference location to stopper 8. The two M12 bolts sequentially pass through the first mounting hole 13 and the corresponding second mounting hole 15 and then are screwed, so that the fixed connection between the limiting block 8 of the mounting ring 7 and the suspension bracket 1 is realized. Because the two parts of the transmission shaft 5 and the suspension bracket 1 have high requirements on the installation position, in the embodiment, the positioning pin 14 is matched with the positioning hole 16, and the two first installation holes 13 and the two second installation holes 15 are in one-to-one correspondence and installed through bolts, so that the transmission shaft 5 and the suspension bracket 1 are accurately and stably installed, and the installation accuracy of the transmission shaft 5 on the suspension bracket 1 is ensured.

The assembly process of the suspension structure capable of supporting the transmission shaft provided by the embodiment is as follows:

during specific assembly, firstly, two engine positioning holes 3 in the suspension support 1 are respectively butted with two engine positioning pins in an engine shell, the assembly position is determined, then the four bolts respectively penetrate through the four engine mounting holes 2 and are screwed on the engine shell, and in the process of tightening the four bolts, better fitting installation between the suspension support 1 and the engine shell is ensured through a diagonal tightening mode.

Then pass the supported hole 4 of suspension support 1 with transmission shaft 5 front end from back to front, and make the collar 7 on the transmission shaft 5 enter into supported hole 4, spacing step 9 on 4 inside walls of supported hole carries on spacingly to the inserted degree of depth of collar 7 forward, in this process, rotate transmission shaft 5, make locating pin 14 on the stopper 8 of collar 7 just in time insert the locating hole 16 on the suspension support 1, after 7 axial of collar and circumferential position all fix a position, screw the nut after passing first mounting hole 13 and the second mounting hole 15 that corresponds through two bolts in proper order, realize the fixed connection of stopper 8 and the suspension support 1 of collar 7, and then realized suspension support 1 to the rotation support of transmission shaft 5.

The design of the suspension bracket 1 in the embodiment takes the interface design with the transmission shaft 5 into consideration, namely, the support holes 4 and the corresponding lapped surfaces 12 are designed in the suspension bracket 1 in advance. In the embodiment, positioning devices formed by matching positioning pins and positioning holes are designed between the suspension support 1 and the limiting block 8 of the mounting ring 7 on the transmission shaft 5 and between the suspension support 1 and the engine shell mounting interface of the power assembly, so that accurate assembly can be realized in the assembly process, the performance is ensured, the assembly time is saved, and the assembly efficiency is improved. The suspension bracket 1 of this embodiment has both the function of suspension bracket 1 itself, has the function of supporting transmission shaft 5 again, and with suspension function and the 5 integrated functions of supporting of transmission shaft together, effectively saved the arrangement space in front deck to make the overall design lighter-weight and low cost more.

In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.

Claims

1. A suspension structure capable of supporting a propeller shaft, comprising a suspension bracket (1) mounted on an engine case, characterized in that: it has supported hole (4) to open on suspension support (1), it has transmission shaft (5) to rotate to support in supporting hole (4), it is equipped with collar (7) to rotate the cover on transmission shaft (5), collar (7) one end is equipped with outside convex stopper (8) along circumference, imbeds to supporting hole (4) in through collar (7) to through stopper (8) and suspension support (1) fixed connection, realize that suspension support (1) supports the rotation of transmission shaft (5).

2. A suspension structure capable of supporting a propeller shaft according to claim 1, wherein: establish one end that collar (7) has stopper (8) is the rear end, the other end is the front end, support hole (4) of suspension support (1) are big step hole in the front and back, form spacing step (9) between the big aperture section of support hole (4) and the aperture section, collar (7) lateral wall shape is identical with support hole (4) inside wall shape and is clearance fit between the two, collar (7) rear end stopper (8) overlap joint on suspension support (1) and with suspension support (1) fixed connection.

3. A suspension structure capable of supporting a propeller shaft according to claim 2, wherein: at least two first mounting holes (13) and at least one positioning pin (14) are formed in a limiting block (8) of the mounting ring (7), at least two second mounting holes (15) corresponding to the at least two first mounting holes (13) one to one are formed in the suspension support (1), at least one positioning hole (16) matched with the at least one positioning pin (14) is formed in the suspension support (1), the axial line of each first mounting hole (13) and the axial line of each positioning hole (16) are parallel to the axial line of the support hole (4), and the limiting block (8) is circumferentially positioned by matching the positioning pin (14) with the positioning hole (16); the bolts sequentially penetrate through the first mounting holes (13) and the corresponding second mounting holes (15) and then nuts are screwed, so that the limit blocks (8) of the mounting rings (7) are fixedly connected with the suspension support (1).

4. A suspension structure capable of supporting a propeller shaft according to claim 2, wherein: the face of the suspension support (1) overlapped with the limiting block (8) of the mounting ring (7) is a lapped face (12), the face of the limiting block (8) facing the lapped face (12) is a lapped face (11), and the lapped face (11) and the lapped face (12) are both planes and are in mutual contact.

5. A suspension structure capable of supporting a propeller shaft according to claim 2, wherein: the mounting ring (7) is rotatably sleeved on the transmission shaft (5) through a bearing (6).

6. A suspension structure capable of supporting a propeller shaft according to claim 3, wherein: be equipped with two first mounting holes (13) and a locating pin (14) on stopper (8) of collar (7), be equipped with on suspension support (1) with two second mounting holes (15) of two first mounting holes (13) one-to-one, be equipped with on suspension support (1) with a locating hole (16) of locating pin (14) matched with.

7. A suspension structure capable of supporting a propeller shaft according to claim 3, wherein: the positioning holes (16) in the suspension bracket (1) are blind holes.

8. A suspension structure capable of supporting a propeller shaft according to claim 1, wherein: the suspension support is characterized in that a bushing mounting hole is formed in the suspension support (1), the bushing mounting hole is located on one side of the supporting hole (4), the bushing mounting hole is parallel to the axial lead of the supporting hole (4), a bushing (17) is installed in the bushing mounting hole of the suspension support (1) in a pressing mode, a third mounting hole is formed in the center of an inner core of the bushing (17), and the third mounting hole is connected with an auxiliary frame.

9. A suspension structure capable of supporting a propeller shaft according to claim 1, wherein: the suspension support (1) is provided with an engine mounting plate perpendicular to the axial lead of the support hole (4) on one side of the support hole (4), and the suspension support (1) is connected with the engine shell through the engine mounting plate.

10. A suspension structure capable of supporting a propeller shaft according to claim 9, wherein: the engine mounting plate is provided with four engine mounting holes (2) and two engine positioning holes (3).