CN215292634U - Vibration damper for engine aftertreatment support - Google Patents

Vibration damper for engine aftertreatment support Download PDF

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Publication number
CN215292634U
CN215292634U CN202120761197.6U CN202120761197U CN215292634U CN 215292634 U CN215292634 U CN 215292634U CN 202120761197 U CN202120761197 U CN 202120761197U CN 215292634 U CN215292634 U CN 215292634U
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China
Prior art keywords
engine
aftertreatment
damping
support
vibration damping
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CN202120761197.6U
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Chinese (zh)
Inventor
徐成强
李玉松
何俊刚
陈代飞
徐俊
习富康
朱旭
徐娇
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Dongfeng Cummins Engine Co Ltd
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Dongfeng Cummins Engine Co Ltd
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Priority to CN202120761197.6U priority Critical patent/CN215292634U/en
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Abstract

The utility model discloses a vibration damper for engine aftertreatment support, including engine bracket, aftertreatment support, aftertreatment, cylinder cap and four at least damping mechanisms, damping mechanism with connect between the engine, the aftertreatment support with damping mechanism connects, aftertreatment with aftertreatment leg joint, engine bracket is located the cylinder cap and with the cylinder cap is connected, damping mechanism includes the bolt, goes up the damping pad, first gasket, lower damping pad, second gasket, nut and bush, and vibration damper is installed ingeniously between engine bracket and aftertreatment support. By adopting the vibration damper, the influence of post-treatment on an engine in the working process of the machine can be effectively reduced, and the vibration transmitted to the post-treatment can be effectively reduced by filtering through the vibration damper, so that the aim of protecting the post-treatment precise component is fulfilled. The engine is suitable for the engine.

Description

Vibration damper for engine aftertreatment support
Technical Field
The utility model relates to a vibration damper technical field especially relates to a vibration damper for engine aftertreatment support.
Background
With the upgrade of national engine emission standards, more and more new post-processing products are used to meet the emission requirements of the whole vehicle or equipment, and these products are often integrated with more and more precise parts, which correspond to the heavy and bulky post-processing, resulting in the increase of the difficulty in the arrangement of the post-processing in the host plant. Within the industry, mainframe plants often solve the deployment problem by enlarging the engine compartment, or by placing the after-treatment outside the engine compartment.
For some compact-arrangement whole vehicles or equipment, after-treatment needs to be arranged on the engine, and according to historical experience, if only a pure mechanical structure is adopted for connection, heavy after-treatment can have great influence on the engine, and meanwhile, the vibration of the engine can also influence the service life and reliability of the after-treatment.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a be not enough to prior art, the utility model provides a vibration damper for engine aftertreatment support possesses the influence that can effectively reduce aftertreatment in the working process and can lead to the fact the engine, and the filtration through the device can reduce the vibration that transmits on the aftertreatment simultaneously, reaches advantages such as the purpose of the accurate part of protection aftertreatment, is arranged in solving among the prior art heavy aftertreatment and will lead to the fact huge influence to the engine, and the vibration of engine also can influence the life-span and the problem of reliability of aftertreatment simultaneously.
(II) technical scheme
The utility model provides a following technical scheme: a vibration damping device for an engine aftertreatment support comprises an engine support, an aftertreatment support, aftertreatment, a cylinder cover and at least four vibration damping mechanisms, wherein the vibration damping mechanisms are connected with the engine;
through the utility model provides a damping device for engine aftertreatment support can reduce the influence of aftertreatment during operation vibration to the engine, for the connected mode of ordinary aftertreatment and engine, the utility model provides a mounting means can radially reduce the vibration that the aftertreatment produced to avoid the inside precision part of engine to cause the influence.
The vibration damping mechanism comprises a bolt, an upper vibration damping pad, a first gasket, a lower vibration damping pad, a second gasket, a nut and a bushing, wherein the bolt penetrates through the engine support and the aftertreatment support and is connected with the aftertreatment support, the nut is connected with the bolt, the bushing is located on the outer wall of the bolt, the upper vibration damping pad is connected with the engine support, the first gasket is connected with the aftertreatment support, the lower vibration damping pad is connected with the first gasket, the second gasket is connected with the lower vibration damping pad, the lower vibration damping pad is connected with the nut, the first gasket and the second gasket are both made of high-strength hot rolled steel plates, and the surfaces of the first gasket and the second gasket are subjected to rust prevention treatment.
Can be connected between aftertreatment support and the engine through setting up damping mechanism, for fixed mounting means, adopt the mounting means that can carry out the damping, can effectually reduce the produced vibration of aftertreatment, produced vibration can not transmit to the engine in order to guarantee the aftertreatment during operation, the stability of the inside precision part of engine has been guaranteed, by four damping mechanisms, the engine support, the aftertreatment support, the arrangement scheme that aftertreatment and cylinder cap are constituteed jointly, can effectively solve the problem that aftertreatment is difficult to arrange on the engine, guarantee engine and aftertreatment homoenergetic safe and reliable work simultaneously.
In one possible embodiment, the upper and lower damping pads are each designed as a U-shaped structure.
The cross sections of the upper damping pad and the lower damping pad are arranged to be U-shaped, so that the problem of stress concentration can be avoided, and the purpose of changing the rigidity of the damping pad can be achieved by changing the molded line of the U-shaped.
In a possible implementation manner, the axial stiffness of the upper damping pad and the axial stiffness of the lower damping pad are both within the range of 300-700N/mm, the radial stiffness is within the range of 120-500N/mm, the upper damping pad and the lower damping pad are both made of rubber materials, according to the use conditions and the stiffness value requirements, ethylene acrylate rubber, ethylene propylene diene monomer rubber, natural rubber, butyl rubber, nitrile rubber and chloroprene rubber can be selected, the shore hardness of the materials is within the range of 50-65 ℃, and for the application scenario that the temperature of the surface of the damping pad is higher than 150 ℃, the ethylene acrylate rubber with higher temperature resistance needs to be selected.
In one possible embodiment, the engine mount has a mounting hole, and the upper and lower vibration-damping pads are located at the mounting hole.
Can fix the engine support through setting up damping pad and lower damping pad, and can weaken the produced vibration of aftertreatment support to guarantee engine support's stability.
In a possible implementation manner, the upper vibration damping pad and the lower vibration damping pad are both special-shaped structures and have the same structure, the upper vibration damping mechanism and the lower vibration damping mechanism both comprise an outer vibration damping structure and an inner vibration damping structure, the outer vibration damping structure is provided with a first groove and a second groove, the inner vibration damping structure is provided with a reinforcing rib, and the outer vibration damping structure is connected with the inner vibration damping structure.
The outer vibration damping structure is mainly used for reducing axial vibration, and the outer vibration damping structure and the inner vibration damping structure are jointly used for reducing vibration in the radial direction and the torsional direction. The first groove and the second groove on the outer vibration damping structure are structural designs applied to the low-rigidity vibration damping mechanism, when a good solution cannot be found on material selection to meet the requirement of low rigidity, the purpose of effectively reducing the rigidity can be achieved by adopting the structure, and the reinforcing ribs are uniformly distributed on the circumference of the inner vibration damping structure and can be used for improving the structural strength and the rigidity of the inner vibration damping structure. In general, the upper and lower vibration damping pads have the same rigidity and structure, and in some application scenes with harsh requirements on vibration, the upper and lower vibration damping pads can have different rigidity values, and the vibration damping can be realized by adjusting the material formula or changing the structure.
In a possible embodiment, the bushing is connected with the inner damping structure, the bushing is made of carbon steel or alloy steel, and the surface of the bushing is subjected to rust prevention treatment.
The bushing and the inner vibration reduction structure are in proper interference fit, so that the relative position of the inner vibration reduction structure can be ensured, and the inner vibration reduction structure can be supported and fixed.
In one possible embodiment, the outer damping structure of the upper damping pad is connected to the engine bracket, and the outer damping structure of the lower damping pad is connected to the first gasket.
Compared with the prior art, the utility model provides a vibration damper for engine aftertreatment support possesses following beneficial effect:
1. the utility model discloses a position to the damping structure is adjusted, can effectively solve the problem that the aftertreatment is difficult to arrange on the engine, guarantees engine and aftertreatment homoenergetic safe and reliable work simultaneously, can effectively reduce the influence that aftertreatment can lead to the fact the engine in the working process, and the filtration through the device can reduce the vibration that transmits the aftertreatment simultaneously, reaches the purpose of protection aftertreatment precision parts.
2. The utility model discloses a damping mechanism adopts split type last damping pad and lower damping pad, easily installation and dismantlement, and go up damping pad and lower damping pad, can the needle utensil need select the same or different rigidity, can change rigidity and then satisfy the rigidity demand that different were used through the size that changes the molded lines of damping pad U type and adjustment recess, this damping mechanism adopts ethylene acrylate rubber, through reasonable structural design, can guarantee that part safe and reliable ground is used in the more close high thermal environment apart from the aftertreatment.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
Fig. 1 is a schematic overall structural diagram of a vibration damping device for an engine aftertreatment support according to the present invention;
fig. 2 is a schematic position diagram of a damping mechanism of a damping device for an engine aftertreatment support according to the present invention;
fig. 3 is a sectional view of an installation state of a damping mechanism of a damping device for an engine aftertreatment support according to the present invention;
fig. 4 is a schematic structural view of an outer damping pad and an inner damping pad of a damping device for an engine aftertreatment support provided by the present invention.
Wherein: 1 engine support, 2 damping mechanism, 3 aftertreatment support, 4 aftertreatment, 5 cylinder covers, 201 bolts, 202 upper damping pad, 203 first gasket, 204 lower damping pad, 205 second gasket, 206 nut, 207 bush, 11 outer damping structure, 12 inner damping structure, 13 first groove, 14 second groove, 15 strengthening rib.
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.
Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
As shown in fig. 1-2, the present invention provides a vibration damping device for an engine aftertreatment support: the engine comprises an engine support 1, a post-processing support 3, post-processing 4, a cylinder cover 5 and at least four vibration reduction mechanisms 2, wherein the vibration reduction mechanisms 2 are connected with an engine, the post-processing support 3 is connected with the vibration reduction mechanisms 2, the post-processing 4 is connected with the post-processing support 3, and the engine support 1 is located on the cylinder cover 5 and is connected with the cylinder cover 5.
Through the utility model provides a damping device for engine aftertreatment support vibrates when can reducing 4 works of aftertreatment to the influence of engine, for the connected mode of ordinary aftertreatment 4 and engine, the utility model provides an installation mode can radially reduce the vibration that aftertreatment 4 produced to avoid the inside precision part of engine to cause the influence.
As shown in fig. 2-3, the vibration damping mechanism 2 includes a bolt 201, an upper vibration damping pad 202, a first gasket 203, a lower vibration damping pad 204, a second gasket 205, a nut 206, and a bushing 207, the bolt 201 penetrates through the engine mount 1 and the aftertreatment mount 3 and is connected to the aftertreatment mount 3, the nut 206 is connected to the bolt 201, the bushing 207 is located on the outer wall of the bolt 201, the upper vibration damping pad 202 is connected to the engine mount 1, the first gasket 203 is connected to the aftertreatment mount 3, the lower vibration damping pad 204 is connected to the first gasket 203, the second gasket 205 is connected to the lower vibration damping pad 204, the lower vibration damping pad 204 is connected to the nut 206, the first gasket 203 and the second gasket 205 are both made of high-strength hot-rolled steel, and the surface is subjected to rust-proofing treatment.
Can be connected between aftertreatment support 3 and the engine through setting up damping mechanism 2, for fixed mounting means, adopt the mounting means that can carry out the damping, can effectually reduce the produced vibration of aftertreatment 4, in order to guarantee that the produced vibration of aftertreatment 4 during operation can not transmit to the engine, the stability of the inside precision parts of engine has been guaranteed, by four damping mechanism, engine support 1, aftertreatment support 3, the arrangement scheme that aftertreatment 4 and cylinder cap 5 are constituteed jointly, can effectively solve the problem that aftertreatment 4 is difficult to arrange on the engine, guarantee engine and aftertreatment 4 homoenergetic safe and reliable work simultaneously.
Specifically, as shown in fig. 3, in one possible embodiment, both the upper damping pad 202 and the lower damping pad 204 are designed in a U-shaped configuration.
The cross sections of the upper damping pad and the lower damping pad are arranged to be U-shaped, so that the problem of stress concentration can be avoided, and the purpose of changing the rigidity of the damping pad can be achieved by changing the molded line of the U-shaped.
Specifically, as shown in fig. 3, in a possible embodiment, the axial stiffness of the upper damping pad 202 and the axial stiffness of the lower damping pad 204 are both within the range of 300-.
Specifically, as shown in fig. 3, in one possible embodiment, the engine bracket 1 has a mounting hole in which an upper vibration damping pad 202 and a lower vibration damping pad 204 are located.
The engine bracket 1 can be fixed by arranging the upper vibration damping pad 202 and the lower vibration damping pad 204, and the vibration generated by the aftertreatment bracket 3 can be weakened, so that the stability of the engine bracket 1 is ensured.
As shown in fig. 3 to 4, in one possible embodiment, the upper vibration damping pad 202 and the lower vibration damping pad 204 are both shaped structures, and have the same structure, the upper vibration damping mechanism 2 and the lower vibration damping mechanism 2 both include an outer vibration damping structure 11 and an inner vibration damping structure 12, the outer vibration damping structure 11 has a first groove 13 and a second groove 14, the inner vibration damping structure 12 has a rib 15, and the outer vibration damping structure 11 is connected with the inner vibration damping structure 12.
The outer damping structure 11 is provided to primarily reduce axial vibrations, and the outer damping structure 11 and the inner damping structure 12 are combined to reduce radial and torsional vibrations. The first groove 13 and the second groove 14 on the outer vibration damping structure 11 are structural designs applied to the low-rigidity vibration damping mechanism, when a good solution cannot be found on material selection to meet the requirement of low rigidity, the purpose of effectively reducing the rigidity can be achieved by adopting the structure, and the reinforcing ribs 15 are uniformly distributed on the circumference of the inner vibration damping structure 12 and can be used for improving the structural strength and the rigidity of the inner vibration damping structure 12. In general, the upper and lower vibration damping pads have the same rigidity and structure, and in some application scenes with harsh requirements on vibration, the upper and lower vibration damping pads can have different rigidity values, and the vibration damping can be realized by adjusting the material formula or changing the structure.
Specifically, as shown in fig. 3, in one possible embodiment, a bushing 207 is connected to the inner damping structure 12, the bushing 207 is made of carbon steel or alloy steel, and the surface is subjected to rust prevention treatment.
By adopting a proper interference fit between the bushing 207 and the inner damping structure 12, the relative position of the inner damping structure 12 can be ensured, and the inner damping structure 12 can be supported and fixed.
Specifically, as shown in fig. 3, in one possible embodiment, the outer vibration damping structure 11 of the upper vibration damping pad 202 is connected to the engine bracket 1, and the outer vibration damping structure 11 of the lower vibration damping pad 204 is connected to the first gasket 203.
In addition the utility model also provides a damping device's mounting method for engine aftertreatment support, first step will go up the damping pad and pre-install on bush 207, and the part after the re-installation is put respectively in four round holes of engine support 1.
In a second step, the first spacer 203 and the lower damping pad are mounted on the bushing 207 and the upper damping pad and the lower damping pad are adjusted to a centered position.
Thirdly, the aftertreatment support 3 is placed on the four damping mechanisms and the bolts 201 are placed.
And fourthly, sequentially installing a second gasket 205 and a nut 206, and screwing the nut 206 to a standard torque corresponding to the specification of the nut 206 to be used.
And a fifth step of mounting the post-treatment 4 on the post-treatment support 3.
Although embodiments of the present application 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.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Claims (7)

1. The utility model provides a damping device for engine aftertreatment support, includes engine support (1), aftertreatment support (3), aftertreatment (4), cylinder cap (5) and four at least damping mechanism (2), its characterized in that: the vibration damping mechanism (2) is connected with the engine, the aftertreatment support (3) is connected with the vibration damping mechanism (2), the aftertreatment (4) is connected with the aftertreatment support (3), and the engine support (1) is located on the cylinder cover (5) and connected with the cylinder cover (5);
damping mechanism (2) are including bolt (201), last damping pad (202), first gasket (203), lower damping pad (204), second gasket (205), nut (206) and bush (207), bolt (201) run through engine support (1) and aftertreatment support (3) and with aftertreatment support (3) are connected, nut (206) with bolt (201) are connected, bush (207) are located bolt (201) outer wall, go up damping pad (202) with engine support (1) is connected, first gasket (203) with aftertreatment support (3) are connected, lower damping pad (204) with first gasket (203) are connected, second gasket (205) with lower damping pad (204) are connected, lower damping pad (204) with nut (206) are connected.
2. A vibration damping device for an engine aftertreatment mount according to claim 1 wherein: the upper vibration damping pad (202) and the lower vibration damping pad (204) are both designed into U-shaped structures.
3. A vibration damping device for an engine aftertreatment mount according to claim 1 wherein: the axial rigidity of the upper vibration damping pad (202) and the axial rigidity of the lower vibration damping pad (204) are both within the range of 300-700N/mm, and the radial rigidity is within the range of 120-500N/mm.
4. A vibration damping device for an engine aftertreatment mount according to claim 1 wherein: the engine bracket (1) is provided with a mounting hole, and the upper damping pad (202) and the lower damping pad (204) are positioned in the mounting hole.
5. A vibration damping device for an engine aftertreatment mount according to claim 1 wherein: go up damping pad (202) and lower damping pad (204) and be the dysmorphism structure, its structure is the same, go up damping mechanism (2) and all contain outer damping structure (11) and interior damping structure (12) with lower damping mechanism (2), outer damping structure (11) have first recess (13) and second recess (14), interior damping structure (12) have strengthening rib (15), outer damping structure (11) with interior damping structure (12) are connected.
6. The vibration damping device for an engine aftertreatment mount according to claim 5 wherein: the bushing (207) is connected with the inner damping structure (12).
7. The vibration damping device for an engine aftertreatment mount according to claim 5 wherein: the outer vibration damping structure (11) of the upper vibration damping pad (202) is connected with the engine support (1), and the first gasket (203) of the outer vibration damping structure (11) of the lower vibration damping pad (204) is connected.
CN202120761197.6U 2021-04-14 2021-04-14 Vibration damper for engine aftertreatment support Active CN215292634U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120761197.6U CN215292634U (en) 2021-04-14 2021-04-14 Vibration damper for engine aftertreatment support

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120761197.6U CN215292634U (en) 2021-04-14 2021-04-14 Vibration damper for engine aftertreatment support

Publications (1)

Publication Number Publication Date
CN215292634U true CN215292634U (en) 2021-12-24

Family

ID=79536533

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202120761197.6U Active CN215292634U (en) 2021-04-14 2021-04-14 Vibration damper for engine aftertreatment support

Country Status (1)

Country Link
CN (1) CN215292634U (en)

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