CN217081245U - Hydraulic suspension - Google Patents

Abstract

The utility model provides a hydraulic suspension, main part and suspension lower main part on the suspension including the equipment together, and fix the runner subassembly between the main part under main part and the suspension on the suspension, and the both sides of runner subassembly are formed with liquid chamber and lower liquid chamber respectively, the main part has the main part inner core on the suspension, main part suit is on last main part inner core in proper order under runner subassembly and the suspension, and the runner subassembly passes through runner inner core interference suit on last main part inner core, the main part is through main part inner core interference suit down on last main part inner core under the suspension, and the parcel has the rubber coating layer on the outer surface of runner inner core. Hydraulic pressure suspension, the parcel has the rubber coating on the runner inner core surface, through parcel rubber coating, have metal residue between runner inner core and the last main part inner core fitting surface when can preventing the interference suit, and cause sealed risk.

Description

Hydraulic suspension

Technical Field

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

Background

The vehicle body suspension is a bidirectional vibration isolation element which is used for connecting a vehicle body and a vehicle frame and has the functions of restraining and protecting the motion trend, and the bidirectional vibration isolation element is mainly used for connecting the vehicle frame and the vehicle body, bearing dynamic and static forces, isolating the vibration of the vehicle frame or the vehicle body and the like caused by excitation. Compared with pure rubber vehicle body suspension, the damping characteristic of the hydraulic vehicle body suspension can absorb the vibration of a fixed frequency band to a greater extent, so that the hydraulic vehicle body suspension is applied more and more. And for hydraulic suspension, the leakproofness is very important, and in case there is the sealed problem, light then influences suspension damping performance, and the weight then can lead to the suspension function to become invalid, causes whole car trouble unable use.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a hydraulic suspension to can improve hydraulic suspension leakproofness, reduce the weeping risk.

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

the utility model provides a hydraulic suspension, is including the suspension upper main part and the suspension lower main part of equipment together, and fix main part on the suspension with runner assembly between the main part under the suspension, just runner assembly's both sides are formed with upper liquid chamber and lower liquid chamber respectively, main part has the upper main part inner core in the suspension, runner assembly with the suspension lower main part suit is in proper order on the upper main part inner core, just runner assembly passes through runner inner core interference suit on the upper main part inner core, the suspension lower main part pass through lower main part inner core interference suit on the upper main part inner core, and the parcel has the rubber coating layer on the runner inner core surface.

Further, the suspension upper main body comprises an upper main body colloid, an upper main body outer tube fixedly connected to the bottom of the upper main body colloid, and an upper main body inner core fixedly connected to the middle of the upper main body colloid, wherein the upper main body outer tube is connected with the suspension lower main body.

Furthermore, the top of the upper main body colloid is fixedly connected with an upper limiting plate.

Further, the main part includes the lower main part colloid under the suspension, links firmly the lower main part outer tube in the main part colloid outside down, and link firmly the main part colloid is inboard down the main part inner core, lower main part outer tube interference suit is in on the last main part outer tube.

Furthermore, part in the lower main body colloid is located between the lower main body outer pipe and the connecting surface of the upper main body outer pipe, a sealing groove is formed in the upper main body outer pipe, and a sealing line embedded in the sealing groove is formed in the lower main body colloid.

Furthermore, the runner assembly comprises a runner outer pipe, a runner inner core embedded in the runner outer pipe, and a runner colloid fixedly connected between the runner outer pipe and the runner inner core, the runner outer pipe is inserted into the lower main body outer pipe in an interference manner, a spiral runner is formed on the peripheral wall of the runner outer pipe, and two ends of the runner are respectively communicated with the upper liquid chamber and the lower liquid chamber.

Furthermore, go up the main part outer tube with the top butt of runner outer tube links to each other, and go up the main part outer tube with be equipped with between the runner outer tube go up the main part colloid, be equipped with part on the inner wall of lower main part outer tube down the main part colloid, the runner outer tube passes through down the main part colloid with the main part outer tube links to each other down.

Furthermore, the top of the lower main body inner core is connected with the runner inner core in an abutting mode, and a part of the lower main body colloid is arranged on the top of the lower main body inner core.

Furthermore, the upper main body inner core is provided with suspension connecting holes which are axially arranged, and the upper main body outer pipe and/or the lower main body outer pipe are provided with suspension mounting holes.

Further, the bottom of main part is equipped with down the limiting plate under the suspension, down the limiting plate with the bottom butt of going up the main part inner core, just be equipped with on the limiting plate down with the connection via hole that the suspension connecting hole link up.

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

hydraulic pressure suspension, through wrap up the rubber coating layer on the flow channel inner core surface, utilize this rubber coating layer, produce metal residue between flow channel inner core and the last main part inner core fitting surface when not only can avoiding the interference suit, the sealed risk that causes to also can utilize the elastic sealing effect of rubber coating layer, improve the leakproofness between flow channel inner core surface and the last main part inner core fitting surface, thereby can improve hydraulic pressure suspension leakproofness, reduce the weeping risk.

Furthermore, the utility model discloses the limiting plate is gone up in the setting, is favorable to promoting the reliability when suspension uses, goes up and forms the seal groove on the main part outer tube to set up on the main part colloid down and inlay the seal line of dress in the seal groove, can further promote the sealed effect of suspension. The flow channel is arranged on the outer peripheral wall of the flow channel outer tube, and compared with the flow channel formed at the flow channel inner core, the length of the flow channel can be increased, so that the damping characteristic of the suspension can be improved.

Additionally, the utility model discloses well runner outer tube links to each other with lower main part outer tube through lower main part colloid, can guarantee the leakproofness of runner for the top and the runner inner core butt of lower main part inner core, and the main part colloid under the top setting of lower main part inner core also can promote the leakproofness of suspension. And the lower limiting plate is arranged at the bottom, so that the reliability of the suspension in use can be improved.

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 cross-sectional view of a hydraulic mount according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a suspension upper main body according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a suspension lower body according to an embodiment of the present invention;

FIG. 4 is an enlarged view of portion A of FIG. 1;

fig. 5 is a schematic structural diagram of a flow channel assembly according to an embodiment of the present invention.

Description of reference numerals:

1. an upper main body colloid; 2. an upper main body inner core; 3. an upper body outer tube; 4. wrapping an adhesive layer; 5. an upper limiting plate; 6. a lower body colloid; 7. a lower body outer tube; 8. a lower body inner core; 9. a flow channel assembly; 10. a liquid feeding chamber; 11. a lower liquid chamber; 12. a lower limiting plate; 13. a blocking member;

20. suspending the connecting hole; 30. a sealing groove; 31. suspending the mounting hole; 60. a seal line; 90. a flow passage outer pipe; 91. a runner inner core; 92. a runner colloid; 120. connecting the vias.

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, if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. appear, they are based on the orientation or positional relationship 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 appearances of the terms first, second, etc. in this specification are not necessarily all referring to the same item, but are instead intended to cover the same item.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

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

The present embodiment relates to a hydraulic mount, which is shown in fig. 1, and comprises a mount upper body and a mount lower body assembled together, and a flow channel assembly 9 fixed between the mount upper body and the mount lower body, and an upper liquid chamber 10 and a lower liquid chamber 11 are formed on both sides of the flow channel assembly 9, respectively.

Specifically, the main part has upper main body inner core 2 in the suspension, and runner assembly 9 and suspension lower main part suit in proper order is on upper main body inner core 2, and runner assembly 9 passes through runner inner core 91 interference suit on upper main body inner core 2, and the main part is through 8 interference suits of lower main body inner core on upper main body inner core 2 under the suspension to the parcel has rubber coating layer 4 on runner inner core 91 surface.

With the above structure, in this embodiment, the adhesive tape layer 4 is wrapped on the outer surface of the flow channel inner core 91, so that the sealing risk caused by metal residues between the matching surfaces of the flow channel inner core 91 and the upper main body inner core 2 during the interference fit can be prevented, and the sealing performance between the outer surface of the flow channel inner core 91 and the matching surface of the upper main body inner core 2 can be improved.

Based on the above overall design, as shown in fig. 2, as an exemplary structure, the suspension upper main body of this embodiment includes an upper main body colloid 1, an upper main body outer tube 3 fixedly connected to the bottom of the upper main body colloid 1, and an upper main body inner core 2 fixedly connected to the middle of the upper main body colloid 1. Wherein the upper body outer tube 3 is connected to the suspended lower body.

The upper main body colloid 1 is columnar, and the upper main body inner core 2 is fixedly connected with the middle part of the upper main body colloid 1 and is vulcanized and fixedly connected with the upper main body colloid 1. The middle position of the outer side wall of the upper main body colloid 1 is also provided with a groove, and the groove can provide better elasticity for the upper main body colloid 1 so as to be beneficial to improving the overall vibration reduction performance of the suspension.

In addition, the upper body colloid 1 is provided with a liquid filling hole so as to fill damping liquid into a liquid chamber inside the suspension after the suspension is assembled and molded. And after the pouring is finished, the liquid pouring hole can be plugged by arranging a plugging piece 13. The block piece 13 is generally made of steel balls, and the filling opening can also be designed in a gourd shape, so that the block piece 13 is reliably arranged in the filling opening.

As a preferable embodiment, in order to ensure the reliability of connection between the vehicle frame and the vehicle body when the suspension is in use, the upper limiting plate 5 is fixedly connected to the top of the upper body colloid 1 in the embodiment. The upper limiting plate 5 and the upper body colloid 1 are fixedly connected together in a vulcanization and fixing mode, and in specific implementation, the upper limiting plate 5 can be preferably designed into an inverted disc structure, so that the upper limiting plate 5 is buckled on the top of the upper body colloid 1 as shown in fig. 3. So set up, not only can improve the joint strength between spacing board 5 and the last main part colloid 1, can also reduce the hydraulic pressure and hang the interference that probably produces with peripheral part when using to do benefit to the use of suspension.

In addition, the top of the upper main body inner core 2 can be fixedly connected with the upper limiting plate 5 in a welding or riveting mode, meanwhile, suspension connecting holes 20 which are axially arranged are also formed in the upper main body inner core 2, and the suspension connecting holes 20 penetrate through the upper suspension main body, the flow channel assembly 9 and the lower suspension main body along with the upper main body inner core 2 so as to be connected with a vehicle body through bolts.

In connection with fig. 3, as an exemplary structure, the suspended lower main body includes a lower main body rubber 6, a lower main body outer tube 7 fixedly connected to the outer side of the lower main body rubber 6, and a lower main body inner core 8 fixedly connected to the inner side of the lower main body rubber tube 6, wherein the lower main body outer tube 7 is shrink-fitted on the upper main body outer tube 3. In addition, the lower body colloid 6, the lower body outer pipe 7 and the lower body inner core 8 are fixedly connected in a vulcanization mode.

Wherein, lower main part inner core 8 is the tubular structure, and the bottom of last main part inner core 2 is worn to establish in lower main part inner core 8, and simultaneously, runner assembly 9 is fixed by the centre gripping between upper main part inner core 2 and lower main part inner core 8. And, along with the connection of upper main body outer tube 3 and lower main body outer tube 7, the bottom of upper main body colloid 1 then with the top butt of lower main body colloid 6 together, thereby guarantee the leakproofness of the liquid chamber that the suspension formed inside.

The lower outer body tube 7 of this embodiment is cylindrical and is turned inside out at its top for fitting with the upper outer body tube 3. And, the upper outer body tube 3 has a bent section for receiving the everted top of the lower outer body tube 7 to be fixed in a better fit with the lower outer body tube 7. In addition, a suspension mounting hole 31 is provided on the upper-body outer tube 3 for mounting the hydraulic suspension on the vehicle frame. The suspension mounting hole 31 is preferably a plurality of holes arranged on the upper body outer tube 3, and it is generally a circular hole. However, in order to improve the convenience of operation, one of the mounting holes may be a long hole, so that a certain adjustment margin can be obtained when mounting.

In addition, in addition to the above-mentioned manner of disposing the suspension mounting hole 31 on the upper body outer tube 3, it is of course possible to dispose the suspension mounting hole 31 on the lower body outer tube 7, or to dispose the suspension mounting hole 31 through both the upper body outer tube 3 and the lower body outer tube 7, and the specific disposition thereof may be modified adaptively according to the actual application, and is not limited in this embodiment.

In this embodiment, the lower body gel 6 forms substantially full coverage of the inner wall of the lower body outer tube 7 except for the eversion portion connected to the upper body outer tube 3, and a portion of the lower body gel 6 also extends outside the bottom end of the lower body outer tube 7 to cover the bottom end surface of the lower body outer tube 7. By coating the bottom end surface of the lower-body outer tube 7, when the lower limit plate 12 described below is provided, abnormal noise due to collision caused by hard contact between the lower-body outer tube 7 and the lower limit plate 12 can be prevented.

In addition, in order to improve the sealing performance between the lower body colloid 6 and the upper body outer tube 3, as shown in fig. 4, a portion of the lower body colloid 6 is located between the connection surfaces of the lower body outer tube 7 and the upper body outer tube 3, a sealing groove 30 is formed on the upper body outer tube 3, and a sealing line 60 embedded in the sealing groove 30 is formed on the lower body colloid 6. The sealing line 60 is a circle of protrusions formed on the lower body colloid 6, and when the upper body outer tube 3 is in interference fit with the lower body colloid 6, the sealing effect between the upper body outer tube 3 and the lower body colloid 6 can be enhanced through the fit of the sealing line 60 and the sealing groove 30, and liquid in the suspension can be prevented from leaking and flowing out between the upper body outer tube 3 and the lower body colloid.

Referring to fig. 5, in the present embodiment, as an exemplary structure, the flow channel assembly 9 specifically includes an outer flow channel tube 90, an inner flow channel tube 91 embedded in the outer flow channel tube 90, and a flow channel colloid 92 fixedly connected between the outer flow channel tube 90 and the inner flow channel tube 91, where the outer flow channel tube 90 is inserted into the outer flow channel tube 7 in an interference manner, and a spiral flow channel is formed on an outer peripheral wall of the outer flow channel tube 90, and two ends of the flow channel respectively communicate with the upper liquid chamber 10 and the lower liquid chamber 11.

Specifically, the runner assembly 9 is located the suspension body down, and the top butt of going up main part outer tube 3 and runner outer tube 90 links to each other to be equipped with main part colloid 1 between last main part outer tube 3 and runner outer tube 90, be equipped with part lower main part colloid 6 on the inner wall of lower main part outer tube 7, runner outer tube 90 links to each other with lower main part outer tube 7 through lower main part colloid 6.

In addition, the flow passage inner core 91 is also tubular, and the upper body inner core 2 passes through the flow passage inner core 91. Meanwhile, referring back to fig. 1, a spigot structure similar to a shaft shoulder is formed in the middle of the upper main body inner core 2, the upper end of the flow channel inner core 91 is abutted against the spigot structure, the lower end of the flow channel inner core 91 is abutted against the top end of the lower main body inner core 8, and a part of the lower main body colloid 6 is arranged at the top of the lower main body inner core 8. Thereby, the flow channel inner core 91, namely the flow channel assembly 9 is clamped and fixed between the upper main body inner core 2 and the lower main body inner core 8, and the axial positioning of the flow channel assembly 9 is ensured.

It should be noted that, generally, the upper main body inner core 2 is made of a rigid material, and the flow channel inner core 91 is made of an aluminum material, so that through the encapsulating layer 4 on the flow channel inner core 91, metal residues, that is, aluminum chips, can be avoided when the upper main body inner core 2 and the flow channel inner core 91 are in interference fit, and thus, oil can be prevented from leaking between the upper main body inner core 2 and the flow channel inner core 91. In specific implementation, the encapsulating layer 4 is a colloid structure integrally wrapped on the outer surface of the runner inner core 91 with the runner colloid 92.

In this embodiment, the spiral flow channel is formed on the outer wall of the flow channel outer tube 90 in an inward concave manner, and the outer peripheral wall of the flow channel inner core 91 is covered by the flow channel colloid 92, so that the flow channel is formed in a closed manner, and two ends of the flow channel are respectively communicated with the upper liquid chamber 10 and the lower liquid chamber 11 through openings formed at the upper end and the lower end of the flow channel outer tube 90. In addition, it should be noted that the number of turns of the flow passage should generally not be lower than 3 in practical implementation, and the number of turns of the flow passage may take a larger value on the premise of meeting the requirement for better ensuring the axial damping of the suspension.

In this embodiment, referring to fig. 1, preferably, the bottom of the suspended lower main body is provided with a lower limiting plate 12, the lower limiting plate 12 abuts against the bottom end of the upper main body inner core 2, and the lower limiting plate 12 is provided with a connecting through hole 120 penetrating through the suspended connecting hole 20.

When the hydraulic suspension of the embodiment is used, the hydraulic suspension is connected between the vehicle frame and the vehicle body through connecting pieces such as bolts and the like which are arranged in the suspension connecting holes 20 and the suspension mounting holes 31 in a penetrating manner, so that the vibration damping connection between the vehicle body and the vehicle frame can be realized.

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 hydraulic suspension comprises an upper suspension main body and a lower suspension main body which are assembled together, and a flow channel assembly (9) fixed between the upper suspension main body and the lower suspension main body, wherein an upper liquid chamber (10) and a lower liquid chamber (11) are respectively formed on two sides of the flow channel assembly (9), and the hydraulic suspension is characterized in that:

the main part has upper main part inner core (2) in the suspension, runner subassembly (9) with the suspension is down the main part suit in proper order on upper main part inner core (2), just runner subassembly (9) through runner inner core (91) interference suit on upper main part inner core (2), the suspension is down main part inner core (8) interference suit through down on upper main part inner core (2), and the parcel has encapsulating layer (4) on runner inner core (91) surface.

2. The hydraulic mount of claim 1 wherein:

the suspension upper main body comprises an upper main body colloid (1), an upper main body outer tube (3) at the bottom of the upper main body colloid (1) and an upper main body inner core (2) at the middle part of the upper main body colloid (1), wherein the upper main body outer tube (3) is connected with the suspension lower main body.

3. The hydraulic mount of claim 2 wherein:

the top of the upper main body colloid (1) is fixedly connected with an upper limiting plate (5).

4. The hydraulic mount of claim 2 wherein:

the main part includes lower main part colloid (6) under the suspension, links firmly lower main part outer tube (7) in the lower main part colloid (6) outside, and link firmly lower main part colloid (6) is inboard lower main part inner core (8), lower main part outer tube (7) interference suit is in go up on main part outer tube (3).

5. The hydraulic mount of claim 4 wherein:

the part in the lower main body colloid (6) is located between the lower main body outer pipe (7) and the connecting surface of the upper main body outer pipe (3), a sealing groove (30) is formed in the upper main body outer pipe (3), and a sealing line (60) embedded in the sealing groove (30) is formed in the lower main body colloid (6).

6. The hydraulic mount of claim 4 wherein:

runner subassembly (9) are including runner outer tube (90), nested in runner outer tube (90) runner inner core (91), and link firmly runner outer tube (90) with runner colloid (92) between runner inner core (91), just runner outer tube (90) interference cartridge is in down in main part outer tube (7), and be formed with the spiral runner on the periphery wall of runner outer tube (90), the both ends of runner communicate respectively go up liquid chamber (10) with down liquid chamber (11).

7. The hydraulic mount of claim 6 wherein:

go up main part outer tube (3) with the top butt of runner outer tube (90) links to each other, and go up main part outer tube (3) with be equipped with between runner outer tube (90) go up main part colloid (1), be equipped with the part on the inner wall of lower main part outer tube (7) lower main part colloid (6), runner outer tube (90) pass through lower main part colloid (6) with lower main part outer tube (7) link to each other.

8. The hydraulic mount of claim 4 wherein:

the top of the lower main body inner core (8) is connected with the runner inner core (91) in an abutting mode, and a part of the lower main body colloid (6) is arranged at the top of the lower main body inner core (8).

9. The hydraulic mount of claim 4 wherein:

the upper main body inner core (2) is provided with suspension connecting holes (20) which are axially arranged, and the upper main body outer tube (3) and/or the lower main body outer tube (7) is provided with suspension mounting holes (31).

10. The hydraulic mount of claim 9 wherein:

the bottom of the suspension lower main body is provided with a lower limiting plate (12), the lower limiting plate (12) is abutted to the bottom end of the upper main body inner core (2), and the lower limiting plate (12) is provided with a connecting through hole (120) communicated with the suspension connecting hole (20).

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