CN113263898B - Torsion-resistant pull rod rear suspension, manufacturing method and vehicle - Google Patents

Abstract

The invention relates to a torsion-resistant pull-rod rear mount, a manufacturing method and a vehicle. The torsion-resistant pull-rod rear mount includes a rod body and a forward gear limit block; the forward gear limiter is detachably mounted on the pull rod body piece. In the torsion-resistant pull-rod rear mount, the manufacturing method and the vehicle provided by the present invention, the forward gear limit block of the torsion-resistant pull-rod rear mount is detachably mounted on the rod body, so that the hardness of the forward gear limit block can be independently and freely set , is not limited by the hardness setting of the main rubber rib; in addition, the structural shape of the forward gear limit block can be independently matched according to the different powertrain requirements of different models, and is not affected by the rubber main rib mold; the independent assembly and setting of the forward gear limit block can be convenient Quickly change the structural shape of the rubber limit block to speed up the actual vehicle debugging and matching progress and improve development efficiency.

Description

A kind of anti-twist rod rear suspension, manufacturing method and vehicle

technical field

The invention relates to the technical field of automobile engines, in particular to a torsion-resistant tie rod rear suspension, a manufacturing method and a vehicle.

Background technique

At present, the three-point pendulum suspension system has been widely used in various vehicle models because of its light weight, low cost, small footprint, and good vibration isolation performance. As an important part of the three-point suspension system, the torsion-resistant pull-rod rear mount is responsible for the main anti-engine torsion effect, and has a great impact on engine start-up vibration, vehicle start-up vibration/noise, rapid acceleration vehicle vibration/noise and powertrain displacement. Control plays a vital role.

The key factor affecting the performance of the actual vehicle under these working conditions is whether the stiffness performance design of the forward gear rubber limiter and reverse gear rubber limiter matches the actual needs of the vehicle. Among them, since the reverse gear is rarely used in real vehicles, it is generally considered as a secondary consideration. The forward gear is used most frequently in real vehicles, so the matching design of the forward gear rubber limit block and the real vehicle is the most critical.

In the traditional torsion-resistant tie-rod rear suspension, the structural form shown in Figure 1 is the most common, which consists of a tie rod 10, an inner core 20, a first main rib 30, a second main rib 40, a reverse gear limit block 50, and a forward gear The limit block 60 consists of six parts. Among them, the first main rib 30, the second main rib 40, the reverse gear limiting block 50, and the forward gear limiting block 60 are vulcanized in one piece, and form a non-detachable assembly with the tie rod 10 and the inner core 20 through the chemical reaction of the adhesive during the vulcanization process. , so its structure is simpler.

However, just because the first main rib 30, the second main rib 40, the reverse gear limiting block 50, and the forward gear limiting block 60 are integrally vulcanized and molded, it is very difficult to optimize and adjust the stiffness of the forward gear limiting block. Mainly: 1. Integral vulcanization molding, the rubber hardness must be consistent, and different rubber hardness cannot be set for each; 2. Integral vulcanization molding, which is produced by a pair of molds. If one part is modified, the entire pair of molds will be related. Modification, therefore: (1) In the platform modular design, if the structure is designed for the first model, the rubber limit block of subsequent models can only be used, and different rubbers cannot be matched for different powertrains of different models Limiting block; (2), during the development process, to modify the structural shape of the rubber limiting block, it is necessary to modify the suspended mold after rectification and re-vulcanize the suspension after rectification, which is time-consuming and laborious, and the effect is not good.

The foregoing description is provided to provide general background information and does not necessarily constitute prior art.

Contents of the invention

The object of the present invention is to provide a torsion-resistant tie rod rear mount, a manufacturing method and a vehicle. The hardness of the forward gear limit block of the torsion-resistant tie rod rear mount can be independently and freely set, and is not limited by the hardness setting of the rubber main rib; The structural shape of the forward gear limit block can be independently matched according to different powertrain requirements of different models, and is not affected by the rubber main rib mold.

The present invention provides a torsion-resistant tie rod rear mount, which includes a tie rod body, an inner core, a first main rib, a second main rib, a reverse gear limiting block and a forward gear limiting block, the first main rib, the second main rib and the reverse gear limit block are integrally formed, the forward gear limit block is detachably installed on the rod body, the rod body is provided with a buffer cavity, and the inner wall of the buffer cavity is provided with a matching groove or The connecting seat, the forward gear limit block is provided with a protrusion, and the protrusion is detachably snapped into the matching groove or between the connecting seats, through the transition between the protrusion and the matching groove, Fit or pass through the connecting rod of the protrusion and the connecting seat, the forward gear stopper is detachably installed on the rod body, and connected with the first main rib and the second main rib and a space is formed between the reverse gear limit block.

Further, the matching groove is a dovetail groove, the protrusion is a dovetail pin, and the dovetail pin is inserted into the dovetail groove.

Further, the width of the matching groove is 10mm-20mm, and the angle between the two sides of the matching groove is 0-180 degrees.

Further, the two ends of the forward gear limit block are symmetrically provided with anti-off pieces, and the anti-off pieces are clamped on the rod body of the tie rod.

Further, the matching groove extends along the first direction, and the anti-loosening piece is clamped on the end surface of the pull rod body that is flush with the two ends of the matching groove along the first direction.

Further, an assembly insertion groove is formed between the protrusion and the anti-off piece, and the forward gear limit block is provided with a limit body on a side away from the protrusion.

Further, the first main rib, the second main rib and the reverse gear limiting block are connected to the inner wall of the buffer cavity, and the first main rib, the second main rib and the reverse gear limiting block The head and tail are connected in turn to form a cavity, the inner core is connected in the cavity, and the inner core is used for connecting with the sub-frame of the vehicle.

A method for manufacturing a torsion-resistant pull rod rear suspension, comprising the following steps:

Provide the tie rod body and the inner core, and integrally form the first main rib, the second main rib and the reverse gear limit fixedly combined with the tie rod body and the inner core on the tie rod body and the inner core A block, so that the tie rod body, the inner core, the first main rib, the second main rib and the reverse gear limit block form a small assembly;

A forward gear limit block is provided, a protrusion is provided on the forward gear limit block, a buffer chamber is provided on the rod body of the tie rod, and a matching groove or a connecting seat is provided on the inner wall of the buffer chamber, and the protrusion can be detachably snap into the matching groove or between the connecting seats, and through the interference fit between the protrusion and the matching groove or through the connecting rod between the protrusion and the connecting seat, the The forward gear limiting block is detachably installed on the tie rod body, and forms a space between the first main rib, the second main rib and the reverse gear limiting block.

The present invention also provides a vehicle, including the above-mentioned torsion-resistant pull-rod rear suspension.

The invention provides a torsion-resistant tie rod rear mount, a manufacturing method and a vehicle. The forward gear limit block is detachably installed on the rod body, so that the hardness of the forward gear limit block can be independently and freely set, and is not subject to the hardness setting of the rubber main rib. In addition, the structural shape of the forward gear limit block can be independently matched according to different powertrain requirements of different models, and is not affected by the rubber main rib mold; the independent assembly setting of the forward gear limit block can facilitate and quickly replace the rubber limit block structure shape in order to speed up the actual vehicle debugging and matching progress and improve development efficiency.

Description of drawings

Fig. 1 is a schematic plan view of a conventional torsion-resistant tie rod rear suspension.

Fig. 2 is a schematic plan view of the structure of the torsion bar rear suspension provided by the first embodiment of the present invention.

FIG. 3 is a schematic plan view of the structure of the rod body of the rear suspension of the torsion-resistant rod in FIG. 2 .

Fig. 4 is a structural schematic diagram of the forward gear limit block of the rear suspension of the torsion-resistant tie rod in Fig. 2 .

FIG. 5 is a structural schematic diagram of the rod body of the torsion-resistant pull rod rear suspension and the forward gear limit block in FIG. 2 .

FIG. 6 is a schematic structural diagram of the rear suspension of the torsion-resistant tie rod in FIG. 2 .

Fig. 7 is a schematic structural diagram of the torsion-resistant tie rod rear suspension provided by the second embodiment of the present invention.

Fig. 8 is a schematic structural diagram of the torsion-resistant tie rod rear suspension provided by the third embodiment of the present invention.

The reference signs and components involved in the accompanying drawings are as follows:

1. Tie rod body

11. Tie rod

12. Buffer cavity

13. Cooperating groove

2. Inner core

3. The first main rib

4. The second main rib

5. Reverse limit block

6. Forward gear limit block

61. Raised

611. The first connection hole

62. Anti-off sheet

63. Limiting body

64. Assembly insertion slot

7. Connecting seat

71. The second connecting hole

8. Connecting rod

Detailed ways

The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

The terms "first", "second", "third", "fourth" and the like in the description and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence .

first embodiment

Fig. 2 is a schematic plan view of the structure of the torsion bar rear suspension provided by the embodiment of the present invention. Please refer to FIG. 2 , the torsion-resistant tie rod rear suspension provided by the embodiment of the present invention includes a tie rod body 1 and a forward gear limiter 6 ; the forward gear limiter 6 is detachably mounted on the rear suspension body 1 .

It should be noted that since the forward gear limit block 6 is used most frequently in real vehicles, the matching design between the forward gear limit block 6 and the real vehicle is the most critical; and the forward gear limit block 6 can be independent from the tie rod body 1 Remove it, so that it is very easy to optimize and adjust the stiffness of the forward gear limit block 6; at the same time, the detachable design of the forward gear limit block 6 can set different hardnesses by selecting appropriate materials according to requirements; in addition, the forward gear limit The detachable design of the block 6 can select the appropriate structure of the forward gear limit block 6 according to the needs, so as to achieve the best buffering effect; at the same time, the structure change of the forward gear limit block 6 does not need to change the entire production mold. Further, the hardness of the forward gear limit block 6 can be independently and freely set, and is not limited by the hardness setting of the rubber main rib; in addition, the structural shape of the forward gear limit block 6 can be independently matched according to different powertrain requirements of different models, and is not limited Affected by the rubber main rib mold; the independent assembly setting of the forward gear limit block 6 can conveniently and quickly change the structural shape of the rubber limit block, so as to speed up the debugging and matching progress of the actual vehicle and improve the development efficiency.

FIG. 3 is a schematic plan view of the rod body of the rear mount of the torsion rod in FIG. 2 , and FIG. 4 is a schematic view of the structure of the forward limit block of the rear mount of the torsion rod in FIG. 2 . Please refer to Fig. 3 and Fig. 4, a buffer chamber 12 is provided on the tie rod body 1 provided by the embodiment of the present invention, and the inner wall of the buffer chamber 12 is provided with a matching groove 13, and a protrusion 61 is provided on the forward gear limit block 6, and the protrusion 61 is detachably snapped into the matching groove 13, and the protrusion 61 and the matching groove 13 are interference fit, and the interference fit can be 1mm-2mm.

Specifically, the matching groove 13 is a dovetail groove, and the protrusion 61 is a dovetail pin; when the forward gear limit block 6 is installed on the rod body 1, the dovetail pin is inserted into the dovetail groove. When assembling, apply a small amount of rubber-absorbable lubricating fluid (such as Turkish red oil) on the surface of the dovetail pin to facilitate the smooth assembly of the dovetail pin. In addition, the width of the dovetail groove is 10mm-20mm, preferably 16mm. The angle of the dovetail groove can be 0-180 degrees, preferably 70 degrees, as shown in FIG. 3 , where the angle of the dovetail groove refers to the angle between two inclined sides of the dovetail groove.

As shown in FIG. 4 , anti-off pieces 62 are symmetrically provided at both ends of the forward gear limit block 6 . Specifically, the anti-off piece 62 is in the shape of a cuboid, and the anti-off piece 62 is arranged behind the two ends of the forward gear limit block 6, so that the whole is in the shape of "匚".

Fig. 5 is a schematic structural diagram of the rod body of the torsion-resistant tie-rod rear mount in Fig. 2 and a forward limit block, and Fig. 6 is a structural schematic diagram of the torsion-resistant tie-rod rear mount in Fig. 2 . As shown in FIG. 5 and FIG. 6 , the matching groove 13 extends along the first direction, and the anti-loosening piece 62 is clamped on the end surface of the tie rod body 1 that is flush with the two ends of the matching groove 13 in the first direction. Thus, the cooperation of the matching groove 13 and the protrusion 61 prevents the forward gear limiter 6 from coming out in the second direction perpendicular to the first direction, and the cooperation of the matching groove 13 and the protrusion 61 can also prevent the forward gear limiter from moving out to a certain extent. The position block 6 moves in the first direction, and the anti-off sheet 62 can further prevent the forward gear limit block 6 from slipping in the first direction. It should be noted that the anti-off piece 62 can be deformed, and when the protrusion 61 needs to be snapped into the matching groove 13 , the anti-off piece 62 can be broken apart to facilitate the installation of the forward gear limit block 6 .

The forward gear limit block 6 is provided with a limit body 63 on the side away from the protrusion 61. The limit body 63 is used to contact the inner core 2 during use and then compress, so as to attenuate the vibration of the powertrain and control the displacement of the powertrain. It can design different structural shapes according to the needs of different models. An assembly insertion groove 64 is formed between the protrusion 61 and the anti-off piece 62 for facilitating the smooth insertion of the protrusion 61 into the fitting groove 13 .

As shown in Figure 2, the torsion bar rear suspension provided by the embodiment of the present invention also includes an inner core 2, a first main rib 3, a second main rib 4, a reverse gear limit block 5, a first main rib 3, a second main rib 4 And the reverse gear limit block 5 is connected with the inner wall of the buffer cavity 12), the first main rib 3, the second main rib 4 and the reverse gear limit block 5 are connected from head to tail in turn to form a cavity, and the inner core 2 is connected in the cavity, and the inner core 2 The core 2 is used to connect with the subframe of the vehicle.

In this embodiment, the first main rib 3 , the second main rib 4 and the reverse gear limiting block 5 are integrally formed. Specifically, the first main rib 3, the second main rib 4 and the reverse gear limiting block 5 can be non-detachably connected to the rod body 1 and the inner core 2 during the molding process, and the integral molding method can be vulcanization molding or insert molding. When the vulcanization molding method is adopted, the first main rib 3, the second main rib 4, the reverse gear limit block 5 and the inner wall of the buffer cavity 12 form a non-detachable small assembly through the chemical reaction of the adhesive during the vulcanization process. The inner core 2 is connected in the cavity formed by the first main rib 3 , the second main rib 4 and the reverse gear limiting block 5 through the adhesive in the vulcanization process. Specifically in this embodiment, the forward gear limiting block 6 is separated from the first main rib 3, the second main rib 4 and the reverse gear limiting block 5. More specifically, the forward gear limiting block 6 is relatively opposite to the first main rib 3, the second The two main ribs 4 and the reverse gear limiting block 5 are spaced at a certain distance. A pull rod 11 is also arranged on the pull rod rod body 1, and the pull rod 11 is connected with the vehicle engine bracket.

Specifically, the tie rod body 1 is generally processed in one piece, such as cast aluminum. The first main rib 3, the second main rib 4 and the reverse gear limiting block 5 are integrally formed rubber parts.

Specifically, the reverse gear limiting block 5 and the forward gear limiting block 6 are respectively located at the front and rear ends of the inner core 2 , and the first main rib 3 and the second main rib 4 are respectively located at the left and right sides of the inner core 2 . The centers of the reverse gear limiting block 5 and the forward gear limiting block 6 are located on the same straight line, and the first main rib 3 and the second main rib 4 are arranged symmetrically about the axis of the inner core 2 .

second embodiment

The torsion bar rear suspension provided in this embodiment is basically the same as the torsion bar rear suspension provided in the first embodiment, the difference lies in the shapes of the fitting groove 13 and the protrusion 61 .

Fig. 7 is a schematic structural diagram of the torsion-resistant tie rod rear suspension provided by the second embodiment of the present invention. As shown in FIG. 7 , the cross-sections of the two sidewalls of the fitting groove 13 are in a zigzag shape, and the protrusion 61 matches the fitting groove 13 ; the protrusion 61 is detachably snapped into the fitting groove 13 . The design of the structure of the matching groove 13 and the protrusion 61 further increases the bonding strength with the matching groove 13 to prevent falling off.

third embodiment

The torsion-resistant tie-rod rear suspension provided in this embodiment is basically the same as the torsion-resistant tie-rod rear suspension provided in the first embodiment, the difference lies in the connection method between the forward gear limit block 6 and the tie-rod body 1 .

Fig. 8 is a schematic structural diagram of the torsion-resistant tie rod rear suspension provided by the third embodiment of the present invention. As shown in Figure 8, the torsion-resistant pull-rod rear suspension provided in this embodiment also includes a connecting seat 7 and a connecting rod 8; the protrusion 61 provided in the third embodiment of the present invention is provided with a first connecting hole 611, and the pull-rod body 1 Two connection seats 7 are provided on the inner wall of the buffer cavity 12 of the buffer chamber, and a second connection hole 71 is provided on the connection seat 7; Between the seats 7 , the first connecting hole 611 is aligned with the second connecting hole 71 , and the connecting rod 8 passes through the first connecting hole 611 and the second connecting hole 71 .

Based on the above description, it can be seen that the advantages of the present invention are:

1. In the rear suspension of the torsion-resistant tie rod provided by the present invention, the forward gear limit block 6 can be independently removed from the rod body 1, so that it is very simple to optimize and adjust the stiffness of the forward gear limit block 6; at the same time, the forward gear limit block 6 detachable design, you can choose the appropriate material according to your needs to set different hardness; in addition, the detachable design of the forward gear limit block 6, you can choose the appropriate structure of the forward gear limit block 6 according to your needs, so as to achieve the best buffering effect.

2. The rear suspension of the torsion-resistant tie rod provided by the present invention and the detachable design of the forward gear limit block 6 enable the structure of the forward gear limit block 6 to be changed without changing the entire production mold.

3. With the rear suspension of the torsion-resistant pull rod provided by the present invention, the hardness of the forward limit block 6 can be set independently and freely, and is not limited by the hardness setting of the main rubber rib; in addition, the structural shape of the forward limit block 6 can be adjusted according to different models Different powertrain requirements are independently matched without being affected by the rubber main rib mold; the independent assembly setting of the forward gear limit block 6 can easily and quickly change the structural shape of the rubber limit block, so as to speed up the actual vehicle debugging and matching progress and improve development efficiency.

A method for manufacturing a torsion-resistant pull rod rear suspension, comprising the following steps:

S1: Provide the tie rod body 1 and the inner core 2, and integrally form the first main rib 3, the second main rib 4 and the reverse limit block fixedly combined with the tie rod body 1 and the inner core 2 on the tie rod body 1 and the inner core 2 5. Make the tie rod body 1, the inner core 2, the first main rib 3, the second main rib 4 and the reverse gear limit block 5 form a small assembly;

S2: Install the forward limit block 6 detachably on the pull rod body 1 .

The present invention also provides a vehicle, including the above-mentioned torsion-resistant pull-rod rear suspension.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (9)

1. A torsion-resistant tie rod rear mount, characterized in that it includes a tie rod body (1), an inner core (2), a first main rib (3), a second main rib (4), and a reverse limit block (5) and the forward gear limiting block (6), the first main rib (3), the second main rib (4) and the reverse gear limiting block (5) are integrally formed, and the forward gear limiting block ( 6) Removably installed on the rod body (1), the rod body (1) is provided with a buffer chamber (12), and the inner wall of the buffer chamber (12) is provided with a matching groove (13) or a connecting seat (7), the forward gear limit block (6) is provided with a protrusion (61), and the protrusion (61) is detachably snapped into the matching groove (13) or the connecting seat (7 ), through the interference fit between the protrusion (61) and the matching groove (13) or through the connecting rod (8) passing through the protrusion (61) and the connecting seat (7), the The forward gear limiting block (6) is detachably installed on the tie rod body (1), and is connected with the first main rib (3), the second main rib (4) and the reverse gear limiting Spaces are formed between the blocks (5). 2. The torsion-resistant tie rod rear mount according to claim 1, characterized in that: the matching groove (13) is a dovetail groove, the protrusion (61) is a dovetail pin, and the dovetail pin is inserted into the Inside the dovetail slot. 3. The torsion-resistant tie rod rear suspension according to claim 2, characterized in that: the width of the matching groove (13) is 10 mm-20 mm, and the angle between the two sides of the matching groove (13) is 0-180 degrees . 4. The rear suspension of the torsion-resistant tie rod according to claim 1, characterized in that: the two ends of the forward gear limit block (6) are symmetrically provided with anti-off pieces (62), and the anti-off pieces ( 62) Clamped on the rod body (1) of the pull rod. 5. The torsion-resistant tie rod rear suspension according to claim 4, characterized in that: the matching groove (13) extends along the first direction, and the anti-loosening piece (62) is clamped on the tie rod body (1) The end face of the fitting groove (13) that is flush with the two ends of the matching groove (13) in the first direction. 6. The anti-torsion rod rear suspension according to claim 4, characterized in that: an assembly insertion groove (64) is formed between the protrusion (61) and the anti-off piece (62), and the forward The gear limit block (6) is provided with a limit body (63) on the side away from the protrusion (61). 7. The torsion-resistant tie rod rear suspension according to claim 1, characterized in that: the first main rib (3), the second main rib (4) and the reverse gear limiting block (5) are connected to the The inner wall of the buffer cavity (12) is connected, the first main rib (3), the second main rib (4) and the reverse gear limit block (5) are connected end to end to form a cavity, and the inner core ( 2) Connected in the cavity, the inner core (2) is used to connect with the sub-frame of the vehicle. 8. A method for manufacturing a torsion-resistant pull rod rear suspension, characterized in that it comprises the following steps: A tie rod body (1) and an inner core (2) are provided, and integrally formed with the tie rod body (1) and the inner core (2) on the tie rod body (1) and the inner core (2) Fix and combine the first main rib (3), the second main rib (4) and the reverse limit block (5), so that the tie rod body (1), the inner core (2), the first main rib (3) ), the second main rib (4) and the reverse gear limit block (5) form a small assembly; A forward gear limit block (6) is provided, a protrusion (61) is provided on the forward gear limit block (6), a buffer chamber (12) is provided on the pull rod body (1), and the buffer chamber ( 12) The inner wall is provided with a matching groove (13) or a connecting seat (7), and the protrusion (61) is detachably snapped into the matching groove (13) or between the connecting seats (7), Through the interference fit between the protrusion (61) and the matching groove (13) or through the connecting rod (8) between the protrusion (61) and the connecting seat (7), the forward gear The limiting block (6) is detachably installed on the rod body (1), and is connected with the first main rib (3), the second main rib (4) and the reverse gear limiting block (5) form an interval. 9. A vehicle, characterized by comprising the torsion-resistant tie-rod rear suspension according to any one of claims 1-7.

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