CN210591368U - Rigidity-adjustable power assembly suspension - Google Patents

Abstract

The utility model discloses a rigidity adjustable power assembly suspension, including suspension lower frame, the bottom of suspension lower frame has the power assembly lower carriage through second fastening bolt fixed connection, the second fixed orifices has been seted up on one side outer wall of power assembly lower carriage, the internal thread hole has been seted up at the top of suspension lower frame, and the top position department swing joint that the top of suspension lower frame is close to the internal thread hole has the nut, the top position department of suspension lower frame is provided with the suspension upper frame. According to the power assembly suspension with the adjustable rigidity, the pretightening force of the bolt can be adjusted to enable rubber to be at different heights, the rigidity and the damping of the rubber are adjusted, the vibration isolation effect of the rubber on the whole system is verified, repeated manufacturing of sample pieces with different rigidities, assembling, testing and other work are avoided, time, labor and cost are saved, and the rubber deformation is within a controllable range when a power system jumps up through increasing the limit, so that the service life of the suspension assembly is ensured.

Description

Rigidity-adjustable power assembly suspension

Technical Field

The utility model relates to the field of automotive technology, specifically a rigidity adjustable power assembly suspension.

Background

The block engine mount used on commercial vehicles such as light trucks and mini trucks in automobiles has the characteristics of simple structure and process, low cost and the like, and is widely applied.

However, in the design of the suspension system of the power assembly of the automobile, the natural frequency of the suspension system of the power assembly is kept in a reasonable range, resonance caused by the fact that the suspension system is close to other modal frequencies of the whole automobile is avoided as much as possible, namely, the suspension system of the power assembly is guaranteed to have a high modal decoupling degree, but due to errors of the process and simulation, vibration caused by the suspension still occurs in the loading stage, the rigidity of the rubber suspension cannot be adjusted generally, the vibration isolation performance of the system can be improved by only repeatedly adjusting the hardness of the rubber to manufacture, assemble and test a new suspension assembly again, a large amount of manpower, material resources and time are consumed, the structure generally has only lower limit and side limit, and the engine can be limited forwards by being combined with other suspensions with front limit, but does not have upper limit, so that the service life of the engine is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a rigidity adjustable power assembly suspension to current automobile power assembly suspension that proposes in solving above-mentioned background art is difficult to the rigidity problem of adjusting.

In order to achieve the above object, the utility model provides a following technical scheme: a power assembly suspension with adjustable rigidity comprises a suspension lower framework, wherein the bottom of the suspension lower framework is fixedly connected with a power assembly lower support through a second fastening bolt, a second fixing hole is formed in the outer wall of one side of the power assembly lower support, an internal threaded hole is formed in the top of the suspension lower framework, a nut is movably connected to the position, close to the upper portion of the internal threaded hole, of the top of the suspension lower framework, a suspension upper framework is arranged at the position, above the suspension lower framework, the interior of the nut is connected with an adjusting bolt in a screwing mode through threads, rubber is arranged between the suspension lower framework and the suspension upper framework, and an upper rubber cushion layer is arranged at the position, close to the lower portion of the suspension lower framework, of the top of the suspension upper framework; the bottom of skeleton is close to one side position department of rubber on the suspension and is provided with down the rubber bed course, and the top of skeleton has the power assembly upper bracket through a fastening bolt fixed connection on the suspension, first fixed orifices has been seted up on one side outer wall of power assembly upper bracket.

Preferably, in order to prevent the upper rubber cushion layer from being damaged in the rigidity adjusting process, the rubber cushion layer is not covered in the outer diameter area right below the adjusting bolt on the upper plane of the suspension upper framework, so that the upper rubber cushion layer cannot be pressed when the adjusting bolt descends to be in contact with the suspension upper framework.

Preferably, the number of the first fixing holes is three, and the three first fixing holes are uniformly formed in the outer wall of one side of the power assembly upper support.

Preferably, the outer walls of one sides of the suspension lower framework and the suspension upper framework are provided with 90-degree bent angles.

Preferably, the number of the internal thread holes is two, and the two internal thread holes are symmetrically arranged at the top of the suspension lower framework.

Preferably, the suspension lower framework and the suspension upper framework are vulcanized with rubber into a whole.

Preferably, the adjusting bolt passes through the internal threaded hole.

Compared with the prior art, the beneficial effects of the utility model are that: according to the power assembly suspension with adjustable rigidity, the pretightening force of the bolts can be adjusted, so that rubber is positioned at different heights, the rigidity and the damping of the rubber are adjusted, the vibration isolation effect of the whole system is verified, the work of repeatedly manufacturing sample pieces with different rigidities, assembling, testing and the like is avoided, time, labor and cost are saved, the rubber deformation is in a controllable range when the power system jumps up through increasing and limiting, the service life of the suspension assembly is ensured, the structural change is small, the cost increase is small, the process is simple, but the function improvement is obvious, the suspension rigidity and the damping are continuously changed through adjusting the pretightening force of the bolts, the performance improvement of the power assembly suspension system is facilitated, after the suspension development is completed, the adjusting bolts are taken down, and in normal work, the upper limiting function is newly increased through the contact of an upper framework and a lower framework, and.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a front view of the upper bracket of the power assembly of the present invention.

In the figure: 1. suspending the lower framework; 2. suspending the upper framework; 3. a lower rubber cushion layer; 4. an upper rubber cushion layer; 5. rubber; 6. An internally threaded bore; 7. a second fixing hole; 8. adjusting the bolt; 9. a first fastening bolt; 10. the power assembly is arranged on the bracket; 11. a first fixing hole; 12. a second fastening bolt; 13. a power assembly lower bracket; 14. and a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a power assembly suspension with adjustable rigidity comprises a suspension lower framework 1, wherein the bottom of the suspension lower framework 1 is fixedly connected with a power assembly lower support 13 through a second fastening bolt 12, a second fixing hole 7 is formed in the outer wall of one side of the power assembly lower support 13, an internal threaded hole 6 is formed in the top of the suspension lower framework 1, a nut 14 is movably connected to the position, close to the upper portion of the internal threaded hole 6, of the top of the suspension lower framework 1, a suspension upper framework 2 is arranged at the position, close to the lower portion of the suspension lower framework 1, of the top of the suspension upper framework 2, an adjusting bolt 8 is connected to the interior of the nut 14 in a screwing mode through threads, rubber 5 is arranged between the suspension lower framework 1 and the suspension upper framework 2, an upper rubber cushion layer 4 is arranged at the position, close to the lower portion of the suspension lower framework 1, of the bottom of the suspension upper framework 2 is provided with a lower rubber, and the top of the suspension upper framework 2 is fixedly connected with a power assembly upper support 10 through a first fastening bolt 9, and the outer wall of one side of the power assembly upper support 10 is provided with a first fixing hole 11.

In order to prevent the upper rubber cushion layer 4 from being damaged in the rigidity adjusting process, the rubber cushion layer is not covered in the outer diameter area right below the adjusting bolt 8 on the upper plane of the suspension upper framework 2, so that the upper rubber cushion layer 4 cannot be pressed when the adjusting bolt 8 descends and contacts with the suspension upper framework 2.

The utility model discloses in: the number of the first fixing holes 11 is three, and the three first fixing holes 11 are uniformly arranged on the outer wall of one side of the power assembly upper bracket 10; the firmness of fixed connection is ensured.

The utility model discloses in: the outer walls of one sides of the suspension lower framework 1 and the suspension upper framework 2 are both provided with a 90-degree bend angle; limiting is convenient to realize.

The utility model discloses in: the number of the internal thread holes 6 is two, and the two internal thread holes 6 are symmetrically arranged at the top of the suspension lower framework 1; ensuring the symmetry of the pre-tightening force adjustment.

The utility model discloses in: the suspension lower framework 1 and the suspension upper framework 2 are vulcanized with rubber 5 into a whole.

The utility model discloses in: the adjusting bolt 8 penetrates through the internal thread hole 6 and then is in contact with the suspension upper framework 2.

The working principle is as follows: the suspension lower framework 1 and the power assembly lower support 13 are fixedly connected through a second fastening bolt 12, the suspension upper framework 2 and the power assembly upper support 10 are fixedly connected through a first fastening bolt 9 to realize fixation, when a new product is developed, a nut 14 is screwed to the root of an adjusting bolt 8, the adjusting bolt 8 is screwed into an internal thread hole 6 until the lower plane of the adjusting bolt 8 is contacted with the suspension upper framework 2 and the rubber 5 is compressed to a target height, the nut 14 is screwed to be contacted with the upper plane of the suspension lower framework 1 and a certain torque is applied to lock the adjusting bolt 8, the suspension rigidity and damping are continuously changed, the performance improvement of a power assembly suspension system is facilitated, the rigidity of a suspension value is finally determined, the work of repeatedly manufacturing suspension components with different rigidities, assembling, testing and the like is avoided, after the product is developed, the adjusting bolt 8 is removed, the upper limit function is newly added by means of the contact between the suspension lower framework 1 and the suspension upper framework 2, and the reliability of the suspension is improved.

In summary, the following steps: the power assembly suspension with adjustable rigidity can ensure that the rubber 5 is positioned at different heights by adjusting the pretightening force of the bolt, adjust the rigidity and the damping of the rubber, verify the vibration isolation effect of the whole system, avoid the work of repeatedly manufacturing sample pieces with different rigidities, assembling, testing and the like, save time, labor and cost, by adding the upper limit, the rubber 5 is ensured to deform in a controllable range when the power system jumps up, the service life of the suspension assembly is ensured, the structural change is small, the cost increase is small, the process is simple, but the function improvement is obvious, the suspension rigidity and the damping are continuously changed by adjusting the pretightening force of the bolt, the performance improvement of a power assembly suspension system is facilitated, after the suspension development is completed, the adjusting bolt 8 is taken down, and when the power assembly suspension system works normally, through the contact of the suspension lower framework 1 and the suspension upper framework 2, the upper limiting function is added, and the reliability of the suspension is improved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims (7)

1. The utility model provides a rigidity adjustable power assembly suspension, includes suspension lower skeleton (1), its characterized in that: the bottom of the suspension lower framework (1) is fixedly connected with a power assembly lower support (13) through a second fastening bolt (12), a second fixing hole (7) is formed in the outer wall of one side of the power assembly lower support (13), an internal threaded hole (6) is formed in the top of the suspension lower framework (1), a nut (14) is movably connected to the position, close to the upper portion of the internal threaded hole (6), of the top of the suspension lower framework (1), a suspension upper framework (2) is arranged at the position, close to the upper portion of the suspension lower framework (1), of the top of the suspension upper framework (2), an adjusting bolt (8) is connected to the interior of the nut (14) in a screwing mode through threads, rubber (5) is arranged between the suspension lower framework (1) and the suspension upper framework (2), an upper rubber cushion layer (4) is arranged at the position, close to the lower portion of the suspension lower framework (1), of, the bottom of skeleton (2) is close to one side position department of rubber (5) and is provided with down rubber cushion (3) on the suspension, and the top of skeleton (2) is gone up through first fastening bolt (9) fixedly connected with power assembly upper bracket (10) on the suspension, first fixed orifices (11) have been seted up on one side outer wall of power assembly upper bracket (10).

2. The adjustable-stiffness powertrain mount of claim 1, wherein: and an upper rubber cushion layer is not covered in an outer diameter area right below the adjusting bolt (8) on the upper plane of the suspension upper framework (2).

3. The adjustable-stiffness powertrain mount of claim 1, wherein: the number of the first fixing holes (11) is three, and the three first fixing holes (11) are uniformly formed in the outer wall of one side of the power assembly upper support (10).

4. The adjustable-stiffness powertrain mount of claim 1, wherein: and the outer walls of one sides of the suspension lower framework (1) and the suspension upper framework (2) are provided with 90-degree bent angles.

5. The adjustable-stiffness powertrain mount of claim 1, wherein: the suspension frame is characterized in that the number of the internal thread holes (6) is two, and the two internal thread holes (6) are symmetrically arranged at the top of the suspension frame (1).

6. The adjustable-stiffness powertrain mount of claim 1, wherein: the suspension lower framework (1) and the suspension upper framework (2) are vulcanized with the rubber (5) into a whole.

7. The adjustable-stiffness powertrain mount of claim 1, wherein: the adjusting bolt (8) penetrates through the internal thread hole (6).

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