CN207378149U - For the sealing element of liquid compound spring - Google Patents
For the sealing element of liquid compound spring Download PDFInfo
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- CN207378149U CN207378149U CN201721330437.7U CN201721330437U CN207378149U CN 207378149 U CN207378149 U CN 207378149U CN 201721330437 U CN201721330437 U CN 201721330437U CN 207378149 U CN207378149 U CN 207378149U
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- groove
- sealing element
- substrate
- lip portion
- pressing plate
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Abstract
The utility model is related to a kind of sealing element for liquid compound spring, wherein the liquid compound spring includes the elastic element with accommodating chamber, the sealing element includes：Substrate；Pressing plate on the substrate is set；And it is arranged in the compressive resilience film of the liquid containing intracavitary, the end of the compressive resilience film is equipped with the lip portion extended radially out, wherein, the pressing plate and substrate are equipped with the groove being radially staggered, for sealingly accommodating the lip portion, to form the sealing to the liquid containing chamber.
Description
Technical field
The utility model is related to mechanical seal field, more particularly to a kind of sealing element for liquid compound spring.
Background technology
In recent years, people's active development clean energy resource, wherein wind energy are a kind of new energy for cleaning and continuing forever.With to wind energy
Continually develop, wind generating technology has obtained development at full speed.With the continuous development of MW class wind turbine group, wind turbine
Load it is increasing.Therefore, the damping of the key components and parts of generating set is also particularly important.
The supporting way of wind-driven generator group wheel box of the prior art mainly uses hydraulic pressure support.Hydraulic pressure support is main
It is a kind of novel damping support to grow up on traditional elastic brace foundation for four-point supporting type.Hydraulic pressure support is pacified
Mounted in the left and right sides of the gear-box of wind power generating set, per each one of side, the torsional load of gear-box is primarily subjected to, is mainly held
Load component is liquid compound spring.Wherein, the liquid compound spring of lower end and the compound bullet of liquid of right side upper end on the left of gear-box
Spring is connected by high-pressure hose, and the liquid compound spring of left side upper end and the liquid compound spring of right side lower end are soft also by high pressure
Pipe connects.The hydraulic pressure support of this structure is when bearing torsional load, since the two pieces elastomer of pressure-bearing is connected by high-pressure hose
Logical, liquid is not flowable, shows as very big torsion stiffness.And when bearing vertical load, the compound bullet of liquid of two pieces lower end
The liquid of spring intracavitary flow to the liquid compound spring intracavitary of upper end by high-pressure hose, shows as the vertical stiffness of very little and larger
Damping.
After liquid compound spring installation, its build-in cavities need to be vacuumized and filling liquid, after filling liquid, it is necessary to liquid
Bluk recombination spring is sealed.Hydraulic support system is very high to sealing requirements, therefore, to the Seal Design of liquid compound spring
It is particularly important.
The Seal Design for being presently used for liquid compound spring mainly uses compressive resilience film.Pressure bullet of the prior art
Property film lip seal structure design be T-shaped sealing structure, act on forming sealing by the pressing of top board and lower plate.This structure
Design comparison is simple, and the seal point formed is few.During the work time, since the volume of compressive resilience film can become larger, thus
Compressive resilience film generates larger pulling force with pressing plate for sealing junction so that the lip of compressive resilience film loosens even pull-off.
This can cause sealing performance to be deteriorated, so as to influence the rigidity property of the gear-box of wind power generating set.
In addition, wind power station usually build remote place in, and unit is in high dry running, repair and maintenance it is inconvenient and into
This is very high.
Utility model content
For it is at least some as described above the technical issues of, the utility model is intended to provide a kind of for liquid compound spring
Sealing element.The sealing element can form self sealing structure, with good sealing performance, while can prevent seal point from pulling out
It takes off and causes seal failure.
For this purpose, according to the utility model, a kind of sealing element for liquid compound spring is provided, wherein the liquid is answered
Closing spring includes the elastic element with accommodating chamber, and the sealing element includes：Substrate；Pressing plate on the substrate is set；With
And the compressive resilience film of the liquid containing intracavitary is arranged in, the end of the compressive resilience film is equipped with the lip extended radially out
Oral area, wherein, the pressing plate and substrate are equipped with the groove being radially staggered, for sealingly accommodating the lip portion, with shape
The sealing of the paired liquid containing chamber.
In a preferred embodiment, the groove has arc-shaped section, and is arranged on the groove on pressing plate
Radial direction radius be more than the radial direction radius of groove being disposed on the substrate.
In a preferred embodiment, the footpath that the groove being arranged on pressing plate is in the groove being disposed on the substrate is inside
Side.
In a preferred embodiment, after pressing, the radially inner side of the groove of the pressing plate and outside are being arranged at
It is respectively formed seal point.
In a preferred embodiment, the lip portion is made of rubber material.
In a preferred embodiment, the reinforcer of steel ring form is embedded in the lip portion, the steel ring has
Circular section.
In a preferred embodiment, the steel ring be arranged in the lip portion with the pressing plate and the ditch of substrate
The corresponding region of slot.
In a preferred embodiment, fillet processing is made at the edge being bonded with pressing plate of the groove on the substrate, and
Arc-shaped seam allowance is formed in its afterbody.
In a preferred embodiment, the compression ratio in the lip portion of the compressive resilience film is 15% to 40%.
Description of the drawings
The utility model is illustrated below with reference to accompanying drawings.
Fig. 1 shows the structure of liquid compound spring according to the present utility model, which is included according to this
The sealing element of utility model.
Fig. 2 shows that the lip portion of sealing element shown in Fig. 1 is in the state before pressing.
Fig. 3 shows that the lip portion of sealing element shown in Fig. 1 is in the state after pressing.
Fig. 4 shows the structure for the sealing element that another groove is equipped on substrate and pressing plate.
Fig. 5 shows the structure of the sealing element equipped with another groove on substrate and pressing plate.
In this application, all attached drawings are schematical attached drawing, are merely to illustrate the principle of the utility model, and not
It is drawn to scale.
Specific embodiment
The utility model is introduced below by attached drawing.
Fig. 1 shows liquid compound spring 100 according to the present utility model, including sealing element according to the present utility model
120.As shown in Figure 1, liquid compound spring 100 includes elastic element 110.Elastic element 110 is included with cylindrical structure
Rubber body 111, an end face (such as lower face) of rubber body 111 are equipped with liquid containing chamber 113.In rubber body 111
It is interior to be equipped with steel plate 112 of the polylith as reinforcer.Steel plate 112 for example can rounded disk shape, and pass through vulcanization with rubber body
Mode forms one.The said structure of the elastic element 110 of liquid compound spring 100 is known in the art, is omitted here
It is described in detail.
Sealing element 120 according to the present utility model is arranged on the bottom of liquid compound spring 100, holds including being arranged in liquid
The compressive resilience film 130 received in chamber 113.The outer shape of compressive resilience film 130 and the structure of liquid containing chamber are adapted so that
The outer surface of compressive resilience film 130 and the inner wall of liquid containing chamber 113 fit.Footpath is equipped in the end of compressive resilience film 130
To outwardly directed lip portion 131.The lip portion 131 generally forms a L-shaped structure.In the utility model, term
" radial direction " refers to along the horizontal direction in Fig. 1.
In addition, sealing element 120 further includes the substrate 121 for being arranged on elastic element lower end and the pressure being arranged on substrate 121
Plate 122.Pressing plate 122 is embedded in rubber body 111, and substrate 121 is connected with elastic element 110 by unshowned assembling screw
Together.Wherein, the groove slot 123 and 125 being radially staggered is respectively equipped on substrate 121 and pressing plate 122.It is installed in pressing
Afterwards, the lip portion 131 of compressive resilience film 130 is pressed together in the groove 123 and 125 on substrate 121 and pressing plate 122, so as to be formed
Sealing to liquid containing chamber 113.
In addition, in liquid containing chamber 113 and the center of substrate 121 is preferably at equipped with locating part 140./V
Part 140 is mounted on by connecting stud (not shown) on substrate 121, realizes the /V to rubber body 111.
Fig. 2 shows that the lip portion 131 of sealing element 120 is in the structure before pressing.As shown in Fig. 2, it is arranged on substrate 121
On groove 125 of the groove 123 with being arranged on pressing plate 122 section be respectively provided with it is in the arc-shaped.It will be understood, however, that groove
123 and groove 125 can also be arranged to other shapes, such as triangle, rectangle etc..The groove 123 being arranged on substrate 121
Radial direction radius be more than the radial direction radius for being arranged on groove 125 on pressing plate 122, and groove 123 is arranged on the radial direction of groove 125
Inside.
Fig. 3 shows that the lip portion 131 of sealing element 120 is in the structure after pressing.As shown in figure 3, after pressing is installed,
Lip portion 131 is subject to the collective effect of substrate 121 and pressing plate 122 and is compressed in groove 123 and groove 125 and forms wave
The sealing of shape.Meanwhile the first seal point 150 is formed in the radially inner side of groove 125 in pressing plate 122 and lip portion 131, in groove
125 radial outside forms the second seal point 160, so as to fulfill effective sealing to liquid containing chamber 113.
When liquid compound spring 100 is in running order, the liquid in compressive resilience film 130 can be compressed and cause to press
The top of power elastic membrane 130 is pulled up, so as to generate outside pull-out force at lip 131.In the present embodiment, substrate
121 press lip portion 131 jointly with pressing plate 122, and lip portion 131 is pressed together in groove 123 and groove 125 and forms waveform
Sealing.In this way, when lip 131 bears outside pull-out force, the corrugated sealing structure of formation can be close to by pressing plate 122
The corrugated opening formed is pressed with substrate 121, so as to form a self sealing structure.Also, for this self seals
For structure, the pull-out force born is bigger, and sealing is more reliable.Sealing element 120 according to the present utility model is effectively as a result,
Prevent the seal failure caused by seal point pull-off so that liquid compound spring 100 possesses good sealing performance.
In addition, in order to improve the anti-de- performance pulled out in lip portion 131 and the sealing performance in lip portion 131, according to this practicality
A new preferred embodiment can bury reinforcer in the inside in lip portion 131.As shown in figures 2 and 3, reinforcer constructs
For steel ring 180.Steel ring 180 is arranged on corresponding with the groove 123 and 125 of pressing plate 122 and substrate 121 in lip portion 131
In region, and the cross sectional shape of steel ring 180 is arranged to the cross sectional shape phase of the groove with being arranged on substrate 121 or pressing plate 122
Adaptation.In addition, the maximum gauge size of steel ring 180 is preferentially selected larger than pressing plate 122 with being formed after the installation pressing of substrate 121
Opening size, to further improve the anti-pulling-and-doffing performance energy in lip portion 131.In the illustrated embodiment, the section shape of steel ring 180
Shape is arranged to circle.
In the present embodiment, fillet processing is made at the edge being bonded with pressing plate 122 of the groove 123 on substrate 121, meanwhile,
Do fillet processing in the end face of groove 125 on pressing plate 122.In a unshowned embodiment, in substrate 121 and pressing plate 122
The bottom of groove 123 and 125 be equipped with annular seam allowance (not shown), the cross sectional shape of annular seam allowance is for example arranged to circular arc
Shape.In this way, when compressive resilience film 130 is installed in pressing, lip portion 131 can be pressed sufficiently ring-type due to compressive deformation
In seam allowance, so that it is guaranteed that fitting closely between pressing plate 122 and substrate 121.
As shown in figure 4, in one embodiment, the section of the groove 223 and 225 of substrate 221 and pressing plate 222 is arranged to three
Angular, correspondingly, the section for being arranged on the steel ring 280 in lip portion 131 is arranged to substantially isosceles trapezoid, and the isosceles trapezoid is upper
Base is radially oriented inside and bottom is radially oriented outside.In this way, after pressing, pressing plate 221 is with lip portion 231 in groove
225 radially inner side forms the first seal point 250, and the second seal point 260, this structure are formed in the radial outside of groove 225
It can equally realize effective sealing to liquid containing chamber 113.
In addition, in the present embodiment, annular seam allowance (not shown) is equipped in the bottom of groove 223 and groove 225, it is annular
The cross sectional shape of seam allowance sets in the arc-shaped.Meanwhile the bottom of groove 223 and groove 225 is equipped with fillet.Preferably, groove 223
It is more than the radius of corner of annular seam allowance 227 with the radius of corner of the bottom of groove 225.In this way, compressive resilience film is installed in pressing
When 230, lip portion 231 can be pressed sufficiently in annular seam allowance due to compressive deformation, so that it is guaranteed that pressing plate 222 and substrate
Fitting closely between 221.
As shown in figure 5, in one embodiment, the section of the groove 423 and 425 of substrate 421 and pressing plate 422 is arranged to square
Shape, correspondingly, the section for being arranged on the steel ring 480 in lip portion 431 are arranged to the rectangle being adapted with trench cross section.The rectangle
Long side is placed perpendicular to lip portion 431 in the radial direction, and the long edge size of the rectangle is selected larger than pressing plate 422 and base
The opening size formed after the installation pressing of plate 421, to further improve the anti-pulling-and-doffing performance energy in lip portion 431.After pressing, pressure
Plate 421 forms the first seal point 450 with lip portion 431 in the radially inner side of groove 425, is formed in the radial outside of groove 425
Second seal point 460, so as to fulfill effective sealing to liquid containing chamber 113.
According to the utility model, compressive resilience film 130 can be made of rubber material.The lip portion 131 of compressive resilience film 130
The scope of compression ratio be arranged to 10 five to percent four ten, can be protected while the rigidity in lip portion 131 is ensured
The toughness and tension in card lip portion 131 take off performance, so as to ensure the sealing performance of liquid containing chamber 113.
" steel ring " mentioned in this application is only the class made of other materials for convenience of the term used for the sake of discussion
It can be used like the part of ring, loop-shaped.
Finally it should be noted that the foregoing is merely the utility model preferred embodiment, do not form to this
Any restrictions of utility model.Although the utility model is described in detail with reference to foregoing embodiments, for
For those skilled in the art, it can still modify to the technical solution recorded in previous embodiment or to wherein
Some technical characteristics carry out equivalent substitution.Within the spirit and principle of the utility model, any modification for being made equally is replaced
It changes, improve, should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of sealing element for liquid compound spring, wherein the liquid compound spring includes the bullet with liquid containing chamber
Property element, the sealing element include：
Substrate；
Pressing plate on the substrate is set；And
The compressive resilience film of the liquid containing intracavitary is arranged in, the end of the compressive resilience film is equipped with what is extended radially out
Lip portion,
Wherein, the pressing plate and substrate are equipped with the groove being radially staggered, for sealingly accommodating the lip portion, to be formed
Sealing to the liquid containing chamber.
2. sealing element according to claim 1, which is characterized in that the groove has arc-shaped section, and sets
The radial direction radius of groove on pressing plate is more than the radial direction radius for the groove being disposed on the substrate.
3. sealing element according to claim 2, which is characterized in that the groove being arranged on pressing plate is in and is disposed on the substrate
Groove radially inner side.
4. the sealing element according to any one of Claim 1-3, which is characterized in that after pressing, be arranged at the pressure
The radially inner side of the groove of plate and outside are respectively formed seal point.
5. sealing element according to any one of claim 1 to 3, which is characterized in that the lip portion is by rubber material system
Into.
6. sealing element according to any one of claim 1 to 3, which is characterized in that the lip portion is by rubber material system
Into, and the lip portion is embedded with the reinforcer of steel ring form, and the steel ring has circular section.
7. sealing element according to claim 6, which is characterized in that the steel ring be arranged in the lip portion with it is described
In the corresponding region of the groove of pressing plate and substrate.
8. sealing element according to any one of claim 1 to 3, which is characterized in that groove on the substrate with pressure
Fillet processing is made at the edge of plate fitting, and forms arc-shaped seam allowance in its afterbody.
9. sealing element according to any one of claim 1 to 3, which is characterized in that the lip portion of the compressive resilience film
Compression ratio be 15% to 40%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721330437.7U CN207378149U (en) | 2017-10-17 | 2017-10-17 | For the sealing element of liquid compound spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721330437.7U CN207378149U (en) | 2017-10-17 | 2017-10-17 | For the sealing element of liquid compound spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207378149U true CN207378149U (en) | 2018-05-18 |
Family
ID=62338638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721330437.7U Active CN207378149U (en) | 2017-10-17 | 2017-10-17 | For the sealing element of liquid compound spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207378149U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906200A (en) * | 2017-10-17 | 2018-04-13 | 株洲时代新材料科技股份有限公司 | Seal and liquid compound spring for liquid compound spring |
-
2017
- 2017-10-17 CN CN201721330437.7U patent/CN207378149U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906200A (en) * | 2017-10-17 | 2018-04-13 | 株洲时代新材料科技股份有限公司 | Seal and liquid compound spring for liquid compound spring |
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