CN214164720U - Shock pad for power assembly suspension system of heavy commercial vehicle - Google Patents
Shock pad for power assembly suspension system of heavy commercial vehicle Download PDFInfo
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- CN214164720U CN214164720U CN202022504317.2U CN202022504317U CN214164720U CN 214164720 U CN214164720 U CN 214164720U CN 202022504317 U CN202022504317 U CN 202022504317U CN 214164720 U CN214164720 U CN 214164720U
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Abstract
The utility model provides a heavy commercial car power assembly suspension system shock attenuation, this shock pad include outer skeleton and inner frame, the inner frame part is inlayed on the outer skeleton and the outer skeleton has vertical direction and horizontal direction's restraint to the inner frame, certain clearance has between inner frame and the outer skeleton, still be provided with elastic material in the clearance. The utility model discloses the effectual technical problem who has solved traditional shock pad and have not had limit function and can not the all-round vibration volume of adaptation engine.
Description
Technical Field
The utility model belongs to the technical field of the shock pad, concretely relates to heavy commercial car power assembly suspension system shock pad.
Background
The engine suspension vibration damping pad matched with a heavy-duty car on the market at present is generally of a simple compression type, has a single structure, can only realize the vibration damping in the vertical direction particularly under the weight and vibration working state of the engine, and does not have a limiting function, so that the engine suspension vibration damping pad can not be adapted to the omnibearing vibration state of the engine during working, and the reliability of a related system is poor; meanwhile, the traditional shock pad does not have a locating pin structure, and the problems of difficult locating, high assembly difficulty and the like exist when a power assembly, particularly a heavy vehicle high-horsepower engine and a high-torque transmission are assembled.
Therefore, it is very important to develop a shock pad which can adapt to the omnibearing vibration quantity of the engine, has a limiting function and simultaneously has a positioning function.
The utility model has the following contents:
based on above-mentioned defect the utility model provides a heavy commercial car power assembly suspension shock pad. The technical problem that a traditional shock pad has no limiting function and cannot adapt to the omnibearing vibration quantity of an engine is effectively solved.
The utility model discloses a realize through following technical scheme:
the utility model provides a heavy commercial car power assembly suspension system shock pad, the shock pad includes exoskeleton and inner frame, the inner frame part is inlayed on the exoskeleton and the exoskeleton has the restraint of vertical direction and horizontal direction to the inner frame, certain clearance has between inner frame and the exoskeleton, still be provided with elastic material in the clearance.
Further, seted up on the exoskeleton and inlayed the chamber, the lower chamber wall of inlaying the chamber is V-arrangement bearing board, be provided with spacing boss on the last chamber wall of inlaying the chamber, the lower part of inner frame is the wedge, and spacing recess has been seted up to its upper portion, the lower part of inner frame with V-arrangement bearing board is corresponding, spacing boss with spacing recess is corresponding, be provided with between V-arrangement bearing board and the inner frame lower part wedge surface elastic material, the flexible volume of elastic material between V-arrangement bearing board and the inner frame lower part wedge surface is greater than the flexible volume of inlaying other part elastic material that sets up between chamber and the inner frame.
Preferably, the elastic material is vulcanized rubber.
Preferably, the inner framework is further provided with a positioning pin.
Furthermore, threaded holes are formed in the outer framework and are fine threads, bolts are matched with the threaded holes, the strength grade of each bolt is greater than or equal to 8.8, and each bolt is a bolt with a toothed flange face.
Furthermore, the inner frame and the outer frame are made of cast iron, cast steel or cast aluminum.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model discloses a improve traditional vertical compression type shock pad into wedge combined type compression type shock pad, realized the vertical direction of shock pad and the multidimension degree compression of horizontal direction, adapted the all-round vibration volume of engine to make relevant system stability better; through the arrangement of the limiting boss and the embedding cavity wall, displacement limitation can be performed when the inner framework is stressed and compressed again; the elastic material is arranged between the inner framework and the outer framework, so that the inner framework can keep the ultimate displacement constant under the action of stress, and because the elastic modulus of the same elastic material is the same, the elastic deformation resistance of the same elastic material is the same, and the accuracy of the shock pad system is improved; further, the reliability and NVH (Noise, Vibration, Harshness/Noise, Vibration and Harshness) performance of the power assembly accessory system can be greatly improved; if different extreme displacement amounts are needed, the requirements of the system can be further adapted by adjusting the formula of the rubber material.
Description of the drawings:
in order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic view of the fitting structure of the inner frame, the outer frame and the vulcanized rubber of the present invention;
FIG. 2 is a schematic view of the outer frame structure of the present invention;
FIG. 3 is a schematic view of the inner frame structure of the present invention;
FIG. 4 is a schematic view of the fitting structure of the inner frame and vulcanized rubber of the present invention;
FIG. 5 is a schematic diagram of the displacement of the inner and outer frames of the present invention in the horizontal direction X and the vertical direction Z;
fig. 6 is a schematic diagram of the displacement of the inner and outer frames of the present invention along another horizontal direction Y perpendicular to the X direction in fig. 5;
fig. 7 is a schematic view illustrating a structure of a vertical compression type cushion in the conventional art.
Description of reference numerals:
1-outer framework, 101-embedded cavity, 102-V-shaped bearing plate, 103-limiting boss, 2-inner framework, 201-limiting groove, 202-positioning pin, 3-vulcanized rubber pad, X-first horizontal displacement direction, Y-second horizontal displacement direction, Z-vertical displacement direction, Z1-upper displacement range of inner framework and Z2-lower displacement range of inner framework.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically connected or connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
FIG. 1 is a schematic view of the fitting structure of the inner frame, the outer frame and the vulcanized rubber of the present invention;
FIG. 2 is a schematic view of the outer frame structure of the present invention; FIG. 3 is a schematic view of the inner frame structure of the present invention;
as shown in fig. 1-3, fig. 1 shows a shock pad for a suspension system of a power assembly of a heavy-duty commercial vehicle, which comprises an outer frame 1 and an inner frame 2, wherein an embedded cavity 101 (see fig. 2) is formed on the outer frame 1, a lower cavity wall of the embedded cavity 101 is a V-shaped bearing plate 102, a limiting boss 103 is arranged on an upper cavity wall of the embedded cavity, a lower part of the inner frame is wedge-shaped (see fig. 3), a limiting groove 201 is formed in an upper part of the inner frame, a lower part of the inner frame corresponds to the V-shaped bearing plate, the limiting boss corresponds to the limiting groove, the elastic material is arranged between the V-shaped bearing plate and a wedge-shaped surface of the lower part of the inner frame, the elastic material can be preferably vulcanized rubber, and meanwhile, the elastic material expansion amount between the V-shaped bearing plate and the wedge-shaped surface of the lower part of the inner frame is greater than the expansion amount of the elastic material arranged between the embedded cavity and the inner frame, can be in order to set up multilayer vulcanized rubber pad 3 between the inclined plane of inner frame and exoskeleton for can have certain flexible volume between each layer cushion, thereby make the inner frame have great stroke in the vertical direction, because the weight predominant action of power assembly is in the vertical direction of inner frame, as for other vulcanized rubber pads that set up between inner frame and the exoskeleton, can be according to the nimble setting of the limit displacement volume of the clearance size between the inner frame and the exoskeleton and needs.
FIG. 5 is a schematic diagram of the displacement of the inner and outer frames of the present invention in the horizontal direction X and the vertical direction Z;
fig. 6 is a schematic diagram of the displacement of the inner and outer frames of the present invention along another horizontal direction Y perpendicular to the X direction in fig. 5;
as shown in fig. 5-6, due to the cooperation of the limiting boss 103 and the limiting groove 201, and the vulcanized rubber pad 3 disposed between the inner frame and the outer frame, the inner frame can have a certain displacement range in the first horizontal displacement direction X, and the inner frame can have a certain displacement range in the vertical displacement direction Z, in an embodiment, the free displacement in the X direction is ± 5mm according to the system requirement; the Z direction comprises an inner frame upper displacement range Z1 and an inner frame lower displacement range Z2, the free displacement amounts are respectively 3mm and 11mm, wherein the limit compression amount of the vulcanized rubber pad 3 is 5mm, so the X direction free gap between the limit boss and the limit groove is set to be 5mm, the free gap at the Z1 position is set to be 3mm, and the free gap at the Z2 position is set to be 11mm, so the total compression stroke amount is the free displacement amount plus the limit compression amount;
due to the matching between the inner framework and the wall of the outer framework embedding cavity 101, the inner framework can have a certain displacement range in the second horizontal displacement direction Y, and in the embodiment, the Y-direction free displacement is 3mm according to the system requirement; therefore, the clearance between the inner framework and the outer framework in the Y direction is set to be 3mm, and the total compression stroke amount in the Y direction is 8 mm.
As a further embodiment, the upper end surface of the inner frame is further provided with a positioning pin 202, the positioning pin can be used for quickly positioning when the power assembly is installed on the shock pad, particularly, when a heavy vehicle high-horsepower engine and a high-torque transmission are installed under the heavy vehicle high-horsepower engine and the high-torque transmission are installed, the positioning pin can be quickly positioned to improve the operation efficiency, the positioning pin is embedded on the inner frame and matched with a corresponding suspension support, the assembly manufacturability is improved, and the key station production tact of the overall assembly wiring of the whole vehicle is shortened by more than 20S. This wedge structure damping pad has not only guaranteed power assembly convenience, has still promoted gearbox maintenance convenience, compares traditional structure and has simplified the dismouting step in a large number, and the dismouting cycle is reduced to 2.5h by 36 h.
The outer frame is provided with a threaded hole, the threaded hole is a fine thread, the threaded hole is matched with a bolt, the strength grade of the bolt is greater than or equal to 8.8, the bolt is a bolt with a toothed flange surface or a matched anti-loosening gasket, and the anti-loosening performance of the vibration damping pad is effectively improved.
The inner frame and the outer frame may be made of cast iron, cast steel or cast aluminum. The reliability and the maximum bearing capacity of the vibration damping pad can be guaranteed, and the requirements of different working conditions such as mining, heavy load and light logistics transportation are met.
Under the limit working condition, the contact positions of the inner framework and the outer framework of the vibration damping pad are in surface contact, and the rubber layer is additionally covered on the surface of the inner framework to buffer impact, so that the limit contact positions are prevented from being in point contact or line contact, the service performance of parts is improved, and the fatigue life of the parts is prolonged. Through accurate power assembly displacement control, the decoupling rate of the suspension system can be fully improved to more than 80%. The traditional vertical compression type shock pad is improved into the wedge-shaped combined compression type shock pad, so that the multi-dimensional compression of the shock pad in the vertical direction and the horizontal direction is realized, the omnibearing vibration quantity of an engine is adapted, and the stability of a related system is better; through the arrangement of the limiting boss and the embedding cavity wall, displacement limitation can be performed when the inner framework is stressed and compressed again; the elastic material is arranged between the inner framework and the outer framework, so that the inner framework can keep the ultimate displacement constant under the action of stress, and because the elastic modulus of the same elastic material is the same, the elastic deformation resistance of the same elastic material is the same, and the accuracy of the shock pad system is improved; further, the reliability and NVH (Noise, Vibration, Harshness/Noise, Vibration and Harshness) performance of the power assembly accessory system can be greatly improved; if different extreme displacement amounts are needed, the requirements of the system can be further adapted by adjusting the formula of the rubber material.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a heavy commercial car power assembly suspension system shock pad, a serial communication port, the shock pad includes outer skeleton and inner frame, the inner frame part is inlayed on the outer skeleton and outer skeleton has the restraint of vertical direction and horizontal direction to the inner frame, certain clearance has between inner frame and the outer skeleton, still be provided with elastic material in the clearance.
2. The shock pad according to claim 1, wherein the outer frame is provided with an embedded cavity, the lower cavity wall of the embedded cavity is a V-shaped supporting plate, the upper cavity wall of the embedded cavity is provided with a limiting boss, the lower part of the inner frame is wedge-shaped, the upper part of the inner frame is provided with a limiting groove, the lower part of the inner frame corresponds to the V-shaped supporting plate, the limiting boss corresponds to the limiting groove, the elastic material is arranged between the V-shaped supporting plate and the wedge-shaped surface of the lower part of the inner frame, and the elastic material expansion amount between the V-shaped supporting plate and the wedge-shaped surface of the lower part of the inner frame is greater than the elastic material expansion amount of other parts arranged between the embedded cavity and the inner frame.
3. A cushion according to any one of claims 1 to 2, wherein the resilient material is vulcanised rubber.
4. The cushion of claim 1, wherein the inner frame is further provided with a positioning pin.
5. The shock pad according to claim 1, wherein the outer frame is provided with threaded holes, the threaded holes are fine threads, the threaded holes are matched with bolts, the strength grade of the bolts is greater than or equal to 8.8, and the bolts are bolts with toothed flange surfaces.
6. The cushion according to claim 1, wherein the inner frame and the outer frame are made of cast iron, cast steel or cast aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022504317.2U CN214164720U (en) | 2020-11-03 | 2020-11-03 | Shock pad for power assembly suspension system of heavy commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022504317.2U CN214164720U (en) | 2020-11-03 | 2020-11-03 | Shock pad for power assembly suspension system of heavy commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214164720U true CN214164720U (en) | 2021-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022504317.2U Active CN214164720U (en) | 2020-11-03 | 2020-11-03 | Shock pad for power assembly suspension system of heavy commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214164720U (en) |
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- 2020-11-03 CN CN202022504317.2U patent/CN214164720U/en active Active
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