CN207514227U - For the sealing element of liquid compound spring - Google Patents
For the sealing element of liquid compound spring Download PDFInfo
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- CN207514227U CN207514227U CN201721339549.9U CN201721339549U CN207514227U CN 207514227 U CN207514227 U CN 207514227U CN 201721339549 U CN201721339549 U CN 201721339549U CN 207514227 U CN207514227 U CN 207514227U
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- sealing element
- free end
- lip portion
- substrate
- 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 liquid containing chamber, the sealing element includes：Substrate；The pressing plate of setting on the substrate, the pressing plate and substrate collectively define card slot；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, the lip portion has T shapes free end, and the T shapes free end includes the horizontal component of radially inner side and the vertical component of the radial outside in the card slot；And it is arranged on the hold-down mechanism for being used for applying radial load to the T shapes free end in the lip portion in the card slot.
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 the installation of hydraulic pressure complex spring, its build-in cavities need to be vacuumized and filling liquid, after filling liquid, it is necessary to liquid
Pressure complex spring is sealed.Hydraulic support system is very high to sealing requirements, therefore, to the Seal Design of hydraulic pressure complex spring
It is particularly important.
The Seal Design for being presently used for hydraulic pressure complex spring mainly uses compressive resilience film.Pressure bullet of the prior art
Property film lip seal structure design be T shape sealing structures, 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 and the lip of compressive resilience film loosens even pull-off,
Sealing performance is caused 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 leads to 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
It closes spring and includes the elastic element with liquid containing chamber, the sealing element includes：Substrate；The pressure of setting on the substrate
Plate, the pressing plate and substrate collectively define card slot；It is arranged in the compressive resilience film of the liquid containing intracavitary, the pressure bullet
Property film end be equipped with the lip portion that extends radially out, the lip portion has T shapes free end, and the T shapes free end includes
The vertical component of the horizontal component of radially inner side and the radial outside in the card slot；And it is arranged on the card slot
In be used to apply the T shapes free end in the lip portion hold-down mechanism of radial load.
In a preferred embodiment, the hold-down mechanism includes the sealing pressure for lip portion described in radial compaction
Block and the voussoir for pushing lip portion radial motion.
In a preferred embodiment, the cross sectional shape of the sealed briquette and the voussoir is respectively provided with ladder at a right angle
Shape, their bevel edge is interconnected and right-angle side is respectively facing radially inner side and radial outside.
In a preferred embodiment, on the surface of the T shapes free end in the direction of the sealed briquette lip portion
It is equipped at least two pressing protrusions.
In a preferred embodiment, the pressing plate structure is into inverted U-shaped, and the vertical portion of radially inner side is inserted into described
Between the ontology of compressive resilience film and the T shapes free end in the lip portion, and the vertical portion of radial outside and the voussoir is straight
The arm of angle engages.
In a preferred embodiment, the pressing plate and the substrate pressing after, the sealed briquette with it is described
The first seal point is convexed to form by the pressing between the vertical component of the T shapes free end in lip portion.
In a preferred embodiment, after the pressing plate and substrate pressing, in the pressing plate and the lip
The second seal point is formed between the horizontal component of the T shapes free end in portion.
In a preferred embodiment, the area being in contact with the T shapes free end in the lip portion on the substrate
The seam allowance of rectangular cross-section is equipped in domain.
In a preferred embodiment, the voussoir and substrate setting are integral.
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 the state before hold-down mechanism pressing.
Fig. 3 shows the state after hold-down mechanism pressing.
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 is 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 above 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.Diameter 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 connect with elastic element 110 by unshowned assembling screw
Together.In addition, in liquid containing chamber 113 and the center of substrate 121 is preferably at equipped with locating part 140.Limiting
Part 140 is mounted on by connecting stud (not shown) on substrate 121, realizes the limiting to rubber body 111.
As shown in Fig. 2, step part 129, lip portion 131 are equipped on an end face (such as upper surface) of substrate 121
It is arranged on step part 129.Rectangular channel 123 is equipped on an end face (such as lower face) of pressing plate 122.It is installed in pressing
Afterwards, the rectangular channel 123 on the step part 129 and pressing plate 122 of substrate 121 collectively defines card slot 125.The tail in lip portion 131
End is arranged to substantially T-shaped free end, the horizontal component and the radial direction in card slot 125 that T shapes free end includes radially inner side
The vertical component in outside.After pressing installation, the lip portion 131 of compressive resilience film 130 is pressed together between substrate 121 and pressing plate 122,
And the T shapes free end in lip portion 131 is pressed together in card slot 125.
In addition, the hold-down mechanism 150 for applying radial load to T shapes free end is additionally provided in card slot 125.Such as Fig. 2 institutes
Show, hold-down mechanism 150 includes the sealed briquette 160 of the T shapes free end for radial compaction lip portion 131 and for pushing T shapes
The voussoir 170 of free end radial motion.The cross sectional shape of sealed briquette 160 and voussoir 170 be respectively provided with it is at a right angle trapezoidal, and by it
Bevel edge be interconnected and right-angle side is respectively facing radially inner side and radial outside is arranged in card slot 125.
In the present embodiment, it is equipped at least on the surface towards the T shapes free end in lip portion 131 of sealed briquette 160
Two pressing protrusion 161, such as set in the embodiment depicted in figure 2 there are two pressing protrusion 161.The section shape of pressing protrusion 161
Shape can be set to arc-shaped, rectangle or triangle.Such as in the illustrated embodiment, the cross sectional shape of pressing protrusion 161 is preferred
It is arc-shaped.After pressing is installed, pressing protrusion 161 compresses the T in lip portion 131 under the action of the radial pressure of voussoir 170
Shape free end, so as to form the sealing to liquid containing chamber 113.
In the embodiment depicted in figure 2, the cross-sectional configuration for being provided with rectangular channel 123 of pressing plate 122 is into inverted U-shaped, the inverted U-shaped diameter
Vertical portion inwardly is inserted between the ontology of compressive resilience film 130 and the T shapes free end in lip portion 131, and radial outside
Vertical portion engaged with the right-angle side of voussoir 170.The structure can not only improve the anti-pull-off performance in lip portion 131, additionally it is possible to
Improve the sealing performance of liquid compound spring 100.
Fig. 3 shows the state after the pressing of hold-down mechanism 150.As shown in figure 3, the height of voussoir 170 is arranged to pressing
It is less than the height of sealed briquette 160 afterwards, so that voussoir 170 can be fully pressed into card slot 125, it is ensured that sealing
The radial load of briquetting 160 and the sealing performance in lip portion 131.
After pressing plate 122 tightens pressing with substrate 121 by bolt (not shown), in the radial direction that the inclined-plane of voussoir 170 provides
Power and radial push sealed briquette 160 is closed so that the T shapes free end in 160 radial compaction lip portion 131 of sealed briquette, so as to
The pressing protrusion 161 of sealed briquette 160 is made to compress T shapes free end.As a result, in the T shapes with lip portion 131 of sealed briquette 160
Between the vertical component of free end the first seal point 165 is formd by pressing protrusion 161.Meanwhile in pressing plate 122 and substrate
After 121 pressings, the second seal point 166 is formd between the horizontal component of the T shapes free end in pressing plate 122 and lip portion 131.From
And multiple seal points are formed at lip portion 131, realize 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, and T shapes free end is pressed together in card slot 125 jointly with pressing plate 122.In this way, it is born in lip 131
During outside pull-out force, constructing the vertical component of T-shaped free end can be close to be pressed and formed by pressing plate 122 and substrate 121
The side wall of card slot 125, so as to form a self sealing structure.Also, for this self sealing structure, the pull-off born
Power is bigger, and sealing is more reliable.Sealing element 120 according to the present utility model is effectively prevented due to seal point pull-off as a result,
Caused seal failure so that liquid compound spring 100 has good sealing performance.
According to the utility model, in one embodiment, as shown in figure 3, the T shapes with lip portion 131 on substrate 121
Seam allowance 127 is equipped in the region that free end is in contact, the section of seam allowance 127 can be set as rectangle or arc-shaped.For example, illustrating
In embodiment, the section of seam allowance 127 is preferably set to rectangle.In this way, when compressive resilience film 130 is installed in pressing, lip portion
131 T shapes free end can be pressed sufficiently in seam allowance 127 due to compressive deformation, so that it is guaranteed that pressing plate 122 and substrate
Fitting closely between 121.
A unshowned embodiment according to the present utility model, voussoir 170 can be set integrally with substrate 121.This
Sample can reduce installation steps, easy to operate.
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 range of compression ratio be set as 15% to 40%, can ensure lip portion 131 while the rigidity for ensuring lip portion 131
Toughness and tension take off performance, so as to ensure the sealing performance of liquid containing chamber 113.
The sealing element 120 of liquid compound spring according to the present utility model is by setting press mechanism 150, while by lip
Portion 131 sets T-shaped free end.This sealing structure not only increases the quantity of seal point, also improves the firm of lip portion 131
Degree is added significantly to the anti-pull-off performance of compressive resilience film 130, so as to strengthen the sealability of liquid compound spring 100.
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 replacement.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；
The pressing plate of setting on the substrate, the pressing plate and substrate collectively define card slot；
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, the lip portion have T shapes free end, and the T shapes free end includes the horizontal component of radially inner side and in institute
State the vertical component of the radial outside in card slot；And
It is arranged on the hold-down mechanism for being used for applying radial load to the T shapes free end in the lip portion in the card slot.
2. sealing element according to claim 1, which is characterized in that the hold-down mechanism is included for lip described in radial compaction
The sealed briquette of oral area and the voussoir for pushing lip portion radial motion.
3. sealing element according to claim 2, which is characterized in that the cross sectional shape of the sealed briquette and the voussoir is equal
It is arranged to right-angled trapezium, their bevel edge is interconnected and right-angle side is respectively facing radially inner side and radial outside.
4. sealing element according to claim 3, which is characterized in that the T in the direction of the sealed briquette lip portion
The surface of shape free end is equipped at least two pressing protrusions.
5. sealing element according to claim 4, which is characterized in that the pressing plate structure into inverted U-shaped, radially inner side it is perpendicular
Straight portion is inserted between the ontology of the compressive resilience film and the T shapes free end in the lip portion, and the vertical portion of radial outside
It is engaged with the right-angle side of the voussoir.
6. sealing element according to claim 4 or 5, which is characterized in that after the pressing plate and substrate pressing, in institute
It states and the first sealing is convexed to form by the pressing between the vertical component of the T shapes free end in sealed briquette and the lip portion
Point.
7. sealing element according to claim 5, which is characterized in that after the pressing plate and substrate pressing, described
The second seal point is formed between the horizontal component of the T shapes free end in pressing plate and the lip portion.
8. sealing element according to any one of claim 1 to 5, which is characterized in that on the substrate with the lip
The seam allowance of rectangular cross-section is equipped in the region that the T shapes free end of oral area is in contact.
9. the sealing element according to any one of claim 2 to 5, which is characterized in that the voussoir is set with the substrate
Integrally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721339549.9U CN207514227U (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 |
|---|---|---|---|
| CN201721339549.9U CN207514227U (en) | 2017-10-17 | 2017-10-17 | For the sealing element of liquid compound spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207514227U true CN207514227U (en) | 2018-06-19 |
Family
ID=62534669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721339549.9U Active CN207514227U (en) | 2017-10-17 | 2017-10-17 | For the sealing element of liquid compound spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207514227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725782A (en) * | 2017-10-17 | 2018-02-23 | 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 CN201721339549.9U patent/CN207514227U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725782A (en) * | 2017-10-17 | 2018-02-23 | 株洲时代新材料科技股份有限公司 | Seal and liquid compound spring for liquid compound spring |
| CN107725782B (en) * | 2017-10-17 | 2023-09-08 | 株洲时代新材料科技股份有限公司 | Seal for liquid compound spring and liquid compound spring |
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