CN213199456U - Suspension structure - Google Patents

Abstract

The utility model provides a suspension structure, which is arranged between a transmission and a vehicle body and is used for installing the transmission on the vehicle body, the suspension structure comprises a first bracket fixedly connected with the transmission and a second bracket fixedly connected with the vehicle body, and a connecting piece is fixedly connected on the first bracket; the elastic connecting assembly comprises an elastic body fixedly connected in the second support and an inner core fixedly connected in the elastic body and sleeved on the connecting piece, and the top end of the connecting piece is connected with the fastening piece in a threaded manner to form fastening connection between the inner core and the first support; the limiting part is arranged between the inner core and the first support to limit the rotation of the inner core relative to the first support. Suspension structure can restrict the rotation of inner core when the fastener is screwed up to effectively prevent the deformation of elastomer, do benefit to the stability of being connected between improvement automobile body and the derailleur.

Description

Suspension structure

Technical Field

The utility model relates to an automobile parts technical field, in particular to suspension structure.

Background

The transmission in the prior art generally adopts a suspension structure to be connected to a vehicle body, and since the transmission is easy to transmit Vibration force with the vehicle body in the using process, an elastic component is arranged in the suspension structure to reduce or block the transmission of the Vibration force, so as to improve the NVH (Noise, Vibration and Harshness) performance of the vehicle.

Current suspension structure is when using, because the torsional force of suspension assembly when connecting to use the fastener to screw up behind the suspension support is great, causes the deformation of inner core among the elastic component in the suspension assembly easily, leads to the vibration range grow of whole car to influence user's driving comfort. In addition, the elastic component is easy to bear torsional force for a long time, so that the service life is shortened.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to a suspension structure to improve stability and NVH performance of the suspension structure in use, and to prolong the service life of the suspension structure.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a suspension structure disposed between a transmission and a vehicle body to constitute mounting of the transmission on the vehicle body, the suspension structure comprising:

the bracket comprises a first bracket fixedly connected with the transmission and a second bracket fixedly connected with the vehicle body, and a connecting piece is fixedly connected on the first bracket;

the elastic connecting assembly is arranged between the first support and the second support and comprises an elastic body fixedly connected in the second support and an inner core fixedly connected in the elastic body and sleeved on the connecting piece, and the top end of the connecting piece is connected with a fastening piece in a threaded manner to form fastening connection between the inner core and the first support;

and the limiting part is arranged between the inner core and the first bracket so as to limit the rotation of the inner core relative to the first bracket.

Furthermore, the limiting part comprises a limiting groove formed at one end of the inner core close to the first bracket, and a limiting bulge constructed on the first bracket and inserted into the limiting groove.

Furthermore, the inner core is sleeved on the connecting piece through a through hole formed in the inner core, and the limiting groove is formed on the inner wall of the through hole along the radial direction of the inner core in a concave mode.

Furthermore, the limiting grooves are symmetrically arranged on the inner wall of the through hole.

Furthermore, a first pressing plate is arranged at one end, far away from the first support, of the inner core, a first through hole for the connecting piece to pass through is formed in the first pressing plate, the fastening piece abuts against the first pressing plate and is opposite to the first pressing plate, a second pressing plate is arranged at the other end of the inner core, a second through hole for the connecting piece to pass through is formed in the second pressing plate in a penetrating mode, and the limiting protrusion penetrates through the third through hole.

Furthermore, a first inserting bulge and a second inserting bulge which are connected with the first pressing plate and the second pressing plate in an inserting mode are respectively arranged at two ends of the inner core.

Furthermore, a damping body is arranged on the end face, facing the second support, of the second pressing plate corresponding to at least one side of the second support.

Furthermore, a plurality of shock absorption bulges are formed on one side of the shock absorption body facing the second bracket at intervals.

Furthermore, the first pressing plate is in a long strip shape, elastic blocks fixedly connected to the second support are formed on two opposite sides of the elastic body, and two ends of the first pressing plate can be abutted to the elastic blocks at corresponding ends along with the swinging of the inner core.

Further, the connecting piece is a stud bolt, and the fastening piece is a fastening nut.

Compared with the prior art, the utility model discloses following advantage has:

(1) suspension structure, through setting up elastic connection subassembly, can reduce the transmission of vibration force between automobile body and the derailleur, thereby improve the NVH performance of vehicle, and through setting up spacing portion, can be when the fastener is screwed up, restrict the rotation of inner core, make the inner core after the assembly targets in place can not arrive in first support rotation relatively, thereby effectively prevent the deformation of elastomer, do benefit to the stability of being connected between improvement automobile body and the derailleur, and extension elastic connection subassembly's life.

(2) The limiting protrusion and the limiting groove are matched for limiting, and the device has the advantages of simple structure and convenience in processing and forming.

(3) The limiting groove is formed on the inner wall of the through hole, can be integrally processed and formed with the through hole, and is beneficial to improving the production efficiency of products.

(4) Through setting up two spacing grooves, do benefit to and further improve spacing effect.

(5) The first pressing plate and the second pressing plate are arranged, so that the connecting effect between the inner core and the first support can be improved; and the first pressing plate and the second pressing plate are simple in structure and convenient to machine and form.

(6) The first pressing plate and the second pressing plate are connected to the inner core in a plug-in mounting mode, and the inner core connecting device has the advantages of being convenient to install and good in connecting effect.

(7) The arrangement of the shock absorber can reduce abnormal sound generated between the second support and the second pressure plate due to collision, and the NVH performance of the suspension structure can be improved.

(8) The shock absorption bulge has the advantages of simple structure, convenience in processing and forming, good shock absorption effect and contribution to eliminating abnormal sound.

(9) Through setting up the elastic block can reduce the abnormal sound because of the collision production when the second support collides with the both ends of first clamp plate.

(10) The stud and the fastening nut are mature in product, convenient to install and good in using effect.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic structural diagram of a suspension structure according to an embodiment of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a sectional view taken along line A-A of FIG. 2;

fig. 4 is a schematic structural diagram of a first bracket according to an embodiment of the present invention;

fig. 5 is a schematic structural view of the inner core according to an embodiment of the present invention at a viewing angle;

fig. 6 is a schematic structural view of the inner core according to an embodiment of the present invention at another viewing angle;

fig. 7 is a schematic structural view of a second pressing plate according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a second bracket according to an embodiment of the present invention;

fig. 9 is a schematic structural view of an elastic body according to an embodiment of the present invention;

description of reference numerals:

1-a first bracket, 11-a first mounting hole and 12-a limiting bulge;

2-a connector;

3-a first platen, 31-a boss;

4-second bracket, 41-second mounting hole, 42-mounting groove, 43-flange;

5-an elastic body, 51-a first elastic block, 52-a cavity and 53-a second elastic block;

6-a second pressure plate, 61-a second through hole, 62-a second plug-in hole, 63-a damping bulge, 64-a damping body and 65-a third through hole;

7-inner core, 71-first inserting projection, 72-through hole, 73-second inserting projection and 74-limiting groove.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do 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. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The embodiment relates to a suspension structure which is arranged between a transmission and a vehicle body and used for mounting the transmission on the vehicle body. On the whole constitution, this suspension structure includes in order to with the first support that the derailleur links firmly to and the second support that links firmly with the automobile body, and link firmly the connecting piece on first support. In addition, the suspension structure further comprises an elastic connecting component arranged between the first support and the second support and a limiting part.

The elastic connecting assembly comprises an elastic body fixedly connected in the second support and an inner core fixedly connected in the elastic body and sleeved on the connecting piece, and the top end of the connecting piece is connected with the fastening piece in a threaded manner to form fastening connection between the inner core and the first support. The limiting part is arranged between the inner core and the first support to limit the rotation of the inner core relative to the first support.

Based on the above general description, an exemplary structure of the suspension structure of the present embodiment is shown in fig. 1 to 3, wherein the first bracket 1 is located at the bottom, the elastic connection assembly is sleeved on the connection member 2 and abuts against the first bracket 1, and the top end of the connection member 2 penetrates through the elastic connection assembly. The fastening piece is screwed on the external thread at the top end of the connecting piece 2 so as to realize the fastening of the elastic connecting component on the first bracket 1.

Among them, the first bracket 1 of the present embodiment may adopt a structure that is well-known in the art, and as an example, as shown in fig. 4, a mounting plane is formed to protrude upward at the middle of the first bracket 1, and three first mounting holes 11 for connecting to a transmission are formed at both ends of the bottom of the first bracket 1. The connecting piece 2 is a stud bolt screwed on the mounting plane, and the fastening piece is a fastening nut in the prior art. Here, the stud is used as the connecting member 2, which has advantages of mature product and easy installation. The stud bolt and the fastening nut are simple in matching mode, easy to operate and good in fastening effect. Of course, the connecting member 2 in this embodiment may also adopt a connecting rod in addition to the stud, and the bottom end of the connecting rod may be fixedly connected to the first bracket 1.

The structure of the inner core 7 in this embodiment is as shown in fig. 5 and 6, the top of the inner core 7 is in a circular truncated cone shape with a small diameter end arranged downward, and the middle and the bottom of the inner core 7 are in a column shape. The inner core 7 is sleeved on the connecting piece 2 through a through hole 72 formed in the inner core, wherein the through hole 72 is a long round hole in particular, so that the connecting piece 2 can pass through the through hole, and the assembly efficiency of the production line is improved. Of course, the through hole 72 in this embodiment may have other shapes besides the oblong hole, as long as the cross-sectional area of the through hole 72 is larger than the cross-sectional area of the connecting member 2.

As shown in fig. 3 and 5, the position-limiting portion includes a position-limiting groove 74 formed at an end of the core 7 adjacent to the first bracket 1, and a position-limiting protrusion 12 formed on the first bracket 1 and inserted into the position-limiting groove 74. Here, the cooperation of the limiting protrusion 12 and the limiting groove 74 is adopted for limiting, and the device has the advantages of simple structure and convenience in processing and forming. The limiting groove 74 in this embodiment is formed on the inner wall of the through hole 72 along the radial direction of the inner core 7 in a concave manner, so as to be integrally formed with the through hole 72, which is beneficial to improving the production efficiency of the product. In addition, the two limiting grooves 74 are symmetrically arranged on the inner wall of the through hole 72, so that the limiting effect is further improved.

As shown in fig. 3 and 4, the tip of each stopper protrusion 12 is tapered with its tip portion facing upward so as to be inserted into the corresponding stopper groove 74. The limiting protrusion 12 can be integrally formed with the first support 1, so that the production efficiency is improved, and the production cost is reduced. Of course, the limiting protrusion 12 can be installed on the first bracket 1 by other fixed connection methods in the prior art besides the processing method of integrally processing and forming with the first bracket 1.

As shown in fig. 1 and 5, a first pressing plate 3 is disposed at an end of the inner core 7 away from the first bracket 1, the first pressing plate 3 is in a strip shape, a first through hole for the connecting member 2 to pass through is formed on the first pressing plate 3, and the fastening member abuts against the first pressing plate 3 when being fastened to the connecting member 2. And relative to the first pressing plate 3, the other end of the inner core 7 is provided with a second pressing plate 6, and a second through hole 61 for the connecting piece 2 to pass through and a third through hole 65 for the limiting protrusion 12 to pass through are formed through the second pressing plate 6.

As shown in fig. 1, 5 and 6, a first insertion protrusion 71 and a second insertion protrusion 73 are respectively disposed at two ends of the inner core 7 and connected to the first pressing plate 3 and the second pressing plate 6. The first insertion projections 71 are two and are arranged at the end part of the inner core 7, and the first insertion projections 71 are columnar. Corresponding to the two first inserting protrusions 71, first inserting holes are formed in the first pressing plate 3, the first pressing plate 3 is connected with the inner core 7 through the inserting of the first inserting protrusions 71 in the first inserting holes, and the first inserting holes and the first inserting protrusions 71 are in interference fit.

Correspondingly, the second inserting projections 73 are two arranged at the bottom end of the inner core 7, each second inserting projection 73 is arc-shaped, a second inserting hole 62 is formed in the second pressing plate 6 corresponding to the two second inserting projections 73, the second pressing plate 6 is connected with the inner core 7 through the insertion of the second inserting projections 73 in the second inserting holes 62, and the second inserting holes 62 and the second inserting projections 73 are in interference fit. Here, the first pressing plate 3 and the second pressing plate 6 can be mounted on the inner core 7 by press fitting.

As shown in fig. 8, an elastic body 5 is provided in the hollow inside of the second holder 4, and is fitted inside the second holder 4. A flange 43 arranged in the circumferential direction is formed at the top end of the second bracket 4, and four second mounting holes 41 arranged at intervals for fixedly connecting with a mounting frame on a vehicle body are formed on the flange 43. The elastic body 5 in this embodiment may adopt a well-known structure in the prior art based on the shape of the second bracket 4, and as an example, as shown in fig. 9, the cross-sectional area of the elastic body 5 is set to be larger from the top to the middle and smaller from the middle to the bottom in the height direction, a mounting hole adapted to the shape of the inner core 7 is penetrated through the middle of the elastic body 5, and the inner core 7 is inserted into the mounting hole.

In addition, two elastic blocks which protrude outwards and are symmetrically arranged are arranged in the middle of the elastic body 5, and two ends of the first pressing plate 3 can be abutted against the elastic blocks at the corresponding ends along with the swinging of the inner core 7. For convenience of description, the elastic block disposed to the left in fig. 9 will be referred to as a first elastic block 51, and the other elastic block will be referred to as a second elastic block 53. Corresponding to the two first elastic blocks 51 and the second elastic blocks 53, mounting grooves 42 are respectively provided on the flanges 43, and the elastic body 5 is positioned on the second bracket 4 by mounting the two elastic blocks in the mounting grooves 42.

As shown in fig. 1, a boss 31 for abutting against the elastic block is respectively configured at two ends of the first pressing plate 3, and the boss 31 is arranged corresponding to the two elastic blocks 51 on the outer elastic member, so as to play a better limiting role, reduce the friction noise generated by the second bracket 4 and the first pressing plate 3 during collision, and facilitate further improvement of the NVH performance of the suspension structure.

The elastic body 5 is made of rubber material, and in order to facilitate the processing and molding of the elastic body 5, a framework arranged circumferentially is arranged at the bottom of the elastic body 5. When the elastic body 5 is assembled on the second support 4, the framework is matched with the inner wall of the mounting hole, and the framework and the second support 4 can also adopt a mature connecting structure in the prior art to improve the connecting strength.

In order to further improve the use effect of the elastic connection assembly, in this embodiment, as shown in fig. 3, a cavity 52 with a ring circumferentially arranged is disposed at the bottom of the elastic body 5, a buffering body not shown in the figure is sleeved in the cavity 52, and a distance between an outer circumferential surface of the buffering body and an inner wall of the cavity 52 is set, so that the shock absorption, buffering and noise reduction effects of the suspension structure in use can be improved. The cushion body in this embodiment is also made of rubber material, and the installation of the cushion body on the elastic body 5 can refer to the prior art, and for example, the publication number is CN 206841152U, and the patent name is as the engine suspension cushion assembly and its assembly and the patent document of the vehicle, and the details thereof are not repeated herein.

A damper 64 is provided on an end surface of the second presser plate 6 facing the second bracket 4, on the side corresponding to the second bracket 4. As shown in fig. 3 and 9, in the present embodiment, a portion of the second bracket 4 is suspended on the first bracket 1, so that the whole shock absorbing body 64 is arc-shaped, and the shock absorbing body 64 is provided with a plurality of shock absorbing protrusions 63 arranged at intervals, so as to improve the shock absorbing effect when the second bracket 4 collides with the shock absorbing body 64, and significantly reduce the friction abnormal sound caused by the collision through the shock absorbing protrusions 63, thereby achieving a better noise reduction effect. It should be noted that, when the whole second bracket 4 is suspended on the first bracket 1, the shock absorbing pads 64 are disposed corresponding to two sides of the second bracket 4, or the shock absorbing bodies 64 are disposed in a ring shape, so as to achieve a better shock absorbing effect.

The suspension structure shown in the embodiment can reduce the transmission of vibration force between the vehicle body and the transmission by arranging the elastic connecting assembly, thereby improving the NVH performance of the vehicle. And through setting up spacing portion, can restrict the rotation of inner core 7 when the fastener is screwed up for inner core 7 after the assembly targets in place can not rotate in first support 1 relatively, thereby effectively prevent the deformation of elastomer 5, do benefit to the stability of being connected between improvement automobile body and the derailleur, and extension elastic connection subassembly's life.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A suspension structure disposed between a transmission and a vehicle body to constitute mounting of the transmission on the vehicle body, characterized by comprising:

the support comprises a first support (1) fixedly connected with the transmission and a second support (4) fixedly connected with the vehicle body, and a connecting piece (2) is fixedly connected to the first support (1);

the elastic connecting assembly is arranged between the first support (1) and the second support (4), the elastic connecting assembly comprises an elastic body (5) fixedly connected in the second support (4) and an inner core (7) fixedly connected in the elastic body (5) and sleeved on the connecting piece (2), and the top end of the connecting piece (2) is connected with a fastening piece in a threaded manner to form fastening connection between the inner core (7) and the first support (1);

the limiting part is arranged between the inner core (7) and the first support (1) to limit the rotation of the inner core (7) relative to the first support (1).

2. The suspension structure of claim 1, wherein: the limiting part comprises a limiting groove (74) formed at one end, close to the first bracket (1), of the inner core (7), and a limiting protrusion (12) which is constructed on the first bracket (1) and inserted into the limiting groove (74).

3. The suspension structure of claim 2, wherein: the inner core (7) is sleeved on the connecting piece (2) through a through hole (72) formed in the inner core, and the limiting groove (74) is formed on the inner wall of the through hole (72) along the radial direction of the inner core (7) in an inwards concave mode.

4. The suspension structure of claim 3, wherein: the limiting grooves (74) are symmetrically arranged on the inner wall of the through hole (72).

5. The suspension structure of claim 2, wherein: in keeping away from of inner core (7) the one end of first support (1) is equipped with first clamp plate (3), be formed with the confession on first clamp plate (3) the first via hole that connecting piece (2) passed, the fastener is to arranging in on the first clamp plate, and for first clamp plate (3), in the other end of inner core (7) is equipped with second clamp plate (6), and in second clamp plate (6) go up penetrating be formed with for the confession second via hole (61) that connecting piece (2) passed, and for spacing arch (12) pass third via hole (65).

6. The suspension structure of claim 5, wherein: and a first inserting bulge (71) and a second inserting bulge (73) which are connected with the first pressing plate (3) and the second pressing plate (6) in an inserting manner are respectively arranged at two ends of the inner core (7).

7. The suspension structure of claim 5, wherein: and a damping body (64) is arranged on the end surface of the second pressing plate (6) facing the second support (4) corresponding to at least one side of the second support (4).

8. The suspension structure of claim 7, wherein: a plurality of shock absorption bulges (63) are formed at intervals on one side of the shock absorption body (64) facing the second bracket (4).

9. The suspension structure of claim 5, wherein: the first pressing plate (3) is in a long strip shape, elastic blocks fixedly connected to the second support (4) are formed on two opposite sides of the elastic body (5), and two ends of the first pressing plate (3) can be abutted to the elastic blocks at the corresponding ends along with the swinging of the inner core (7).

10. The suspension structure according to any one of claims 1 to 9, wherein: the connecting piece (2) is a stud, and the fastening piece is a fastening nut.

Images