CN211398370U - Novel wind-powered electricity generation hydraulic pressure yaw brake of seal structure - Google Patents
Novel wind-powered electricity generation hydraulic pressure yaw brake of seal structure Download PDFInfo
- Publication number
- CN211398370U CN211398370U CN202020050700.2U CN202020050700U CN211398370U CN 211398370 U CN211398370 U CN 211398370U CN 202020050700 U CN202020050700 U CN 202020050700U CN 211398370 U CN211398370 U CN 211398370U
- Authority
- CN
- China
- Prior art keywords
- piston
- elastic diaphragm
- accommodating space
- shell
- yaw brake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
The utility model discloses a novel seal structure's wind-powered electricity generation hydraulic pressure driftage stopper, it contains: the pair of caliper bodies are arranged on two sides of the brake disc, and an accommodating space is formed in the caliper bodies; the shell is arranged in the accommodating space, and the top of the shell is provided with an oil inlet hole communicated with an oil way of the caliper body; the elastic diaphragm is fixed on the inner wall of the accommodating space of the shell and forms a variable volume sealed accommodating cavity with the shell; the piston is arranged outside the shell and is arranged in the accommodating space from the inlet of the accommodating space, and the elastic diaphragm is stretched by the pressure oil to push the piston to move axially; the friction plate is arranged on the outer side of the piston and positioned in a mounting groove formed in the caliper body, and the piston moves axially to push the friction plate to press the brake disc. The advantages are that: the elastic diaphragm is adopted to isolate pressure oil from the piston, the sealing structure of the wind power hydraulic yaw brake is improved, the volume of the containing cavity is changed by the deformation of the elastic diaphragm, and the problem that a dynamic sealing element is easily damaged is thoroughly solved.
Description
Technical Field
The utility model relates to a wind-powered electricity generation hydraulic pressure yaw brake field, concretely relates to novel seal structure's wind-powered electricity generation hydraulic pressure yaw brake.
Background
As shown in fig. 1 and fig. 2, a wind power hydraulic yaw brake widely used at present mainly includes a caliper body (caliper) 101, a piston 102, a seal 103, a friction plate 104, a mounting bolt 105, and other parts. The two caliper bodies 101 are arranged on two sides of the brake disc 106 in a group, the two caliper bodies 101 are overlapped in pairs to form a set of complete brake, the complete brake is arranged on a front rack of the fan through a mounting bolt 105, and a plurality of sets of brakes are distributed along the circumference of a yaw gear ring to form a yaw stopping system. Generally, the seal 103 in the caliper body 101 is typically made of a resilient non-metallic material, such as rubber, teflon plastic, or polyurethane. The sealing element 103 is compressed and then installed in the sealing element groove in the caliper body 101, the sealing element 103 can restore the original state after being installed due to the elasticity of the material, and the piston 102 is installed from the opening of the piston hole and can axially move along the inner wall of the piston hole. The above structure can make the gap between the piston 102 and the caliper body 101 filled up by the sealing element 103, so that after pressure oil (hydraulic oil) enters the closed cavity formed by the caliper body 101 and the piston 102 through the oil path in the caliper body 101, the piston 102 is pushed out (axially moved outwards along the inner wall of the piston hole) under the action of the pressure oil, the friction plate 104 is pressed on the brake disc 106, and the magnitude of the braking force can be controlled by controlling the oil pressure of the pressure oil.
However, the above structure is prone to generate a problem of hydraulic oil leakage, because the brake piston 102 is under the action of a radial load, the sealing element 103 has a very serious unbalance loading condition, and is in a high-pressure working condition for a long time, and is very easy to damage, and the damaged sealing element 103 can generate a material peeling phenomenon, so that the pollution condition of the hydraulic oil is aggravated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel seal structure's wind-powered electricity generation hydraulic pressure yaw brake, the device combines together the caliper body, a housing, elastic diaphragm, piston, devices such as friction disc, adopt elastic diaphragm to keep apart pressure oil and piston, the seal structure of wind-powered electricity generation hydraulic pressure yaw brake has been improved, move seal structure by the piston and change elastic diaphragm material isolated structure into, the elastic diaphragm who leans on the preparation of elastic sealing material warp and changes and hold the chamber volume, do not adopt the dynamic seal sealing spare, the easy problem of damaging of dynamic seal sealing spare has thoroughly been stopped.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
the utility model provides a wind-powered electricity generation hydraulic pressure yaw brake of novel seal structure, the device contains:
the pair of caliper bodies are arranged on two sides of the brake disc, and an accommodating space is formed in each caliper body;
the pair of shells are respectively arranged in the accommodating spaces, and the top of each shell is provided with an oil inlet which is communicated with an oil way of the caliper body;
the elastic diaphragms and the shells form a variable-volume sealed cavity to contain pressure oil provided by a hydraulic station to an oil way of the caliper body;
the pair of pistons are respectively arranged on the outer side of each shell and are arranged in the accommodating space from the inlet of the accommodating space, and the elastic diaphragm is pulled by pressure oil to push the pistons to axially move along the inner wall of the accommodating space;
and the pair of friction plates are respectively arranged on the outer side of each piston and positioned in a mounting groove formed in the caliper body, and the pistons can push the friction plates to move in the mounting grooves when moving axially so as to press the brake disc tightly.
Preferably, the elastic diaphragm is pressed on the inner wall of the accommodating space of the shell through a pressing ring;
or the elastic diaphragm is in compression connection with the end face of the shell through threads.
Preferably, the edge of the elastic diaphragm is provided with a flanging boss.
Preferably, the elastic diaphragm and the pressure ring are an integral component.
Preferably, a plurality of rings of grooves are formed in the side wall of the accommodating space contacted with the piston, and a plurality of dust seals are respectively arranged in the grooves.
Preferably, the dust seal is a piston dust ring.
Preferably, when the variable volume sealed cavity expands, the contact part of the elastic diaphragm and the piston is thickened or a wear-resistant plate is adopted.
Preferably, the housing has a width less than a width of the piston.
Compared with the prior art, the utility model has the following advantage:
the utility model discloses a novel seal structure's wind-powered electricity generation hydraulic pressure yaw brake, through combining together devices such as the caliper body, casing, elastic diaphragm, piston, friction disc, adopt elastic diaphragm to keep apart pressure oil and piston, improved wind-powered electricity generation hydraulic pressure yaw brake's seal structure, moved seal structure by the piston and changed into elastic diaphragm material isolated structure, the elastic diaphragm who leans on the preparation of elastic sealing material warp and changes and hold the chamber volume, does not adopt the dynamic seal sealing spare, has thoroughly stopped the easy problem of damaging of dynamic seal sealing spare.
Drawings
FIG. 1 is a schematic structural diagram of a caliper body part of a conventional wind power hydraulic yaw brake;
FIG. 2 is a partial structural schematic diagram of a conventional wind power hydraulic yaw brake;
FIG. 3 is a schematic structural diagram of a part of the wind power hydraulic yaw brake of the present invention;
FIG. 4 is a schematic view of a portion of a diaphragm brake including a housing and a compression ring in compression engagement;
fig. 5 is a schematic view of a diaphragm brake including a housing and a pressure ring that are threadedly coupled.
Detailed Description
The present invention will be further described by the following detailed description of a preferred embodiment thereof, taken in conjunction with the accompanying drawings.
As shown in fig. 3 and fig. 4, for the utility model discloses a wind-powered electricity generation hydraulic yaw brake of novel seal structure, the device contains: at least one pair of caliper bodies 201, a housing 202 matched with the caliper bodies 201, an elastic diaphragm 203 capable of bearing high pressure, a piston 205 and a friction plate 208. In this embodiment, the brake includes a pair of caliper bodies 201.
The caliper body 201 is installed on both sides of the brake disc 209 in pairs, and an accommodation space is formed in the caliper body 201. The housing 202 is arranged in the accommodating space and is in contact with the side wall of the accommodating space, an oil inlet 207 is formed in the top of the housing 202, the oil inlet 207 is communicated with the oil way of the caliper body 201, the elastic diaphragm 203 is fixed on the inner wall of the accommodating space of the housing 202, and the elastic diaphragm 203 and the housing 202 form a variable-volume sealed cavity to accommodate pressure oil provided by a hydraulic station to the oil way of the caliper body 201.
The piston 205 is disposed outside the housing 202, and is installed in the accommodating space from the entrance of the accommodating space, and contacts with the sidewall of the accommodating space, the elastic diaphragm 203 is pulled by the pressurized oil to push the piston 205 to move axially along the inner wall of the accommodating space, as shown in fig. 4, the piston 205 moves axially along the inner wall of the accommodating space, that is, moves in the direction of the arrow. The friction plate 208 is disposed outside the piston 205 (see fig. 4), the caliper body 201 is provided with a rectangular mounting groove, and the friction plate 208 is disposed in the mounting groove. In the present embodiment, the friction plate 208 includes a steel plate and a friction material sintered on the steel plate to increase friction. The piston 205 can push the friction plate 208 to move in the mounting groove to press the brake disc when moving axially. Wherein the width of the housing 202 is smaller than the width of the piston 205.
In this embodiment, the elastic diaphragm 203 is made of rubber, and is pressed against the inner wall of the accommodating space of the housing 202 by a pressing ring 204 (see fig. 3). The edge of the elastic diaphragm 203 is provided with a flanging boss, so that the elastic diaphragm 203 can be ensured not to slide from the pressing ring 204 in the pressing process. Preferably, the elastic diaphragm 203 and the press ring 204 are made into an integral component, and are inserted and pressed in the housing 202. In the pressing process, a mould pressing process is adopted, the pressing ring 204 and the shell 202 are subjected to plastic deformation under the action of a mould, and the installation quality of the elastic diaphragm 203 can be ensured. The mounting process has the advantages of simple and reliable process and good mounting quality, and the working pressure of the mounting process can reach more than 300 bar.
In another embodiment, as shown in fig. 5, the elastic diaphragm 203 is in threaded compression connection with the end face of the housing 202 (compression of the end face of the threaded housing 202). The elastic diaphragm 203 is provided with a flanging boss, the outer side of the end face of the shell 202 is provided with a thread, the top of the inner side of the press ring 204 is provided with a thread, the bottom of the press ring 204 extends towards the inside of the shell 202 to press the elastic diaphragm 203 on the end face of the shell 202, the boss of the elastic diaphragm 203 is also pressed on the end face of the shell 202, and the press ring 204 can press the elastic diaphragm 203 on the shell 202 after being screwed down. Because the brake is compact, the use of such a connection may result in an oversized brake structure, and it is generally preferred to use a compression molding process for installation.
In addition, when the variable volume sealed cavity is expanded, the contact part of the elastic diaphragm 203 and the piston 205 is thickened or a wear-resistant plate is adopted, so that the wear resistance of the elastic diaphragm 203 is enhanced. The surface of the elastic diaphragm 203 is appropriately pre-lubricated, and because the elastic diaphragm 203 is separately installed in the caliper body 201, the elastic diaphragm 203 can be replaced after the piston 205 is taken out when the elastic diaphragm 203 is replaced, and the operation is simpler.
The side wall of the accommodating space contacted with the side wall of the piston 205 is provided with a plurality of circles of grooves, and a plurality of dust seals 206 are respectively arranged in the grooves. In this embodiment, the dust seal 206 is a piston dust ring made of an elastomeric material, preferably a polyurethane material. The dust seal 206 can effectively prevent particle pollutants such as dust from entering the bottom of the piston 205, and avoid abrasion of the elastic diaphragm 203 caused by invasion of solid particle pollutants, so as to protect the elastic diaphragm 203. After the dust seal 206 is installed, the piston 205 is inserted into the accommodating space from the entrance of the accommodating space of the housing 202.
In use, pressure oil from the hydraulic station is introduced through the line into the oil passages in the pair of caliper bodies 201, and then in each caliper body 201, the pressure oil is introduced into the variable volume sealed cavity formed by the elastic diaphragm 203 and the housing 202 through the oil inlet 207 of the housing 202. As the hydraulic oil increases, the elastic diaphragm 203 is compressed and stretched by the pressure oil, and the volume of the variable volume seal chamber increases until the piston 205 is pushed to move and maintain a certain brake pressure. The friction plates 208 in front of the piston 205 can be further moved by pushing the piston 205, and then tightly cling to the brake disc 209, and the friction plates 208 on both sides of the brake disc 209 tightly cling to the brake disc 209 together, so that the braking effect can be realized. In addition, the pressure of the pressure oil is adjusted, so that the magnitude of the yaw braking force can be effectively controlled.
To sum up, the utility model discloses a novel seal structure's wind-powered electricity generation hydraulic pressure driftage stopper, with the caliper body 201, casing 202, elastic diaphragm 203, piston 205, devices such as friction disc 208 combine together, adopt elastic diaphragm 203 to come isolation pressure oil and piston 205, the seal structure of wind-powered electricity generation hydraulic pressure driftage stopper has been improved, move seal structure by piston 205 and change elastic diaphragm 203 material isolated structure into, the elastic diaphragm 203 who leans on the elastic sealing material preparation warp and change and hold the chamber volume, have the reliability height, the advantage that the risk is low, the device does not adopt the dynamic seal sealing spare, the problem of the easy damage of dynamic seal spare has thoroughly been stopped, the advantage that stability is high.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (8)
1. The utility model provides a wind-powered electricity generation hydraulic pressure yaw brake of novel seal structure which characterized in that, the device contains:
the pair of caliper bodies are arranged on two sides of the brake disc, and an accommodating space is formed in each caliper body;
the pair of shells are respectively arranged in the accommodating spaces, and the top of each shell is provided with an oil inlet which is communicated with an oil way of the caliper body;
the elastic diaphragms and the shells form a variable-volume sealed cavity to contain pressure oil provided by a hydraulic station to an oil way of the caliper body;
the pair of pistons are respectively arranged on the outer side of each shell and are arranged in the accommodating space from the inlet of the accommodating space, and the elastic diaphragm is pulled by pressure oil to push the pistons to axially move along the inner wall of the accommodating space;
and the pair of friction plates are respectively arranged on the outer side of each piston and positioned in a mounting groove formed in the caliper body, and the pistons can push the friction plates to move in the mounting grooves when moving axially so as to press the brake disc tightly.
2. The wind power hydraulic yaw brake with the novel sealing structure is characterized in that,
the elastic diaphragm is pressed on the inner wall of the accommodating space of the shell through a pressing ring;
or the elastic diaphragm is in compression connection with the end face of the shell through threads.
3. The wind power hydraulic yaw brake with the novel sealing structure is characterized in that,
and the edge of the elastic diaphragm is provided with a flanging boss.
4. The wind power hydraulic yaw brake with the novel sealing structure is characterized in that,
the elastic diaphragm and the pressing ring are integrated parts.
5. The wind power hydraulic yaw brake with the novel sealing structure is characterized in that,
a plurality of circles of grooves are formed in the side wall of the containing space, which is contacted with the piston, and a plurality of dustproof sealing pieces are respectively arranged in the grooves.
6. The wind power hydraulic yaw brake with the novel sealing structure is characterized in that,
the dustproof sealing part is a piston dustproof ring.
7. The wind power hydraulic yaw brake with the novel sealing structure is characterized in that,
when the variable volume sealed containing cavity expands, the contact part of the elastic diaphragm and the piston is thickened or a wear-resistant plate is adopted.
8. The wind power hydraulic yaw brake with the novel sealing structure is characterized in that,
the width of the housing is less than the width of the piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020050700.2U CN211398370U (en) | 2020-01-10 | 2020-01-10 | Novel wind-powered electricity generation hydraulic pressure yaw brake of seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020050700.2U CN211398370U (en) | 2020-01-10 | 2020-01-10 | Novel wind-powered electricity generation hydraulic pressure yaw brake of seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211398370U true CN211398370U (en) | 2020-09-01 |
Family
ID=72214887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020050700.2U Active CN211398370U (en) | 2020-01-10 | 2020-01-10 | Novel wind-powered electricity generation hydraulic pressure yaw brake of seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211398370U (en) |
-
2020
- 2020-01-10 CN CN202020050700.2U patent/CN211398370U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3716245A (en) | Ring seal | |
| CN105422715B (en) | Hydraulic auxiliary elastic support device | |
| CN202768683U (en) | Disc type hydraulic multi-disc brake | |
| CN111486233A (en) | Hydraulic self-tightening packing sealing structure | |
| CN104564646A (en) | Sealing device for plunger pump and plunger pump | |
| CN211398370U (en) | Novel wind-powered electricity generation hydraulic pressure yaw brake of seal structure | |
| CN101532523A (en) | Novel hydraulic cylinder | |
| CN201801346U (en) | Novel hydraulic jack | |
| CN216112167U (en) | Axial buffering type mechanical seal structure | |
| CN101531331A (en) | Novel hydraulic lifting jack | |
| CN102777529A (en) | Nitrogen cushion | |
| CN202833818U (en) | Nitrogen cushion | |
| CN107654673B (en) | High-temperature high-pressure three-eccentric metal sealing butterfly valve | |
| CN201992077U (en) | End surface sealing structure | |
| CN220470188U (en) | Double-sealing packing box component of high-pressure plunger pump | |
| CN212251129U (en) | Hydraulic self-tightening packing sealing structure | |
| CN211053579U (en) | Automatic pressing mechanism | |
| CN201650312U (en) | Novel hydraulic monomer strut rod | |
| CN219366471U (en) | Piston sealing device for hydraulic cylinder | |
| CN112943932B (en) | High-reliability zero-leakage steam turbine shaft end sealing method | |
| CN212004070U (en) | Nitrogen spring with explosion-proof air-leakage piston rod | |
| CN210715958U (en) | High-pressure tandem type dry gas sealing device | |
| CN112943933B (en) | High-reliability low-torque zero-leakage steam turbine shaft end sealing device | |
| CN118667348A (en) | Sealing ring applied to ultrahigh pressure field and preparation method thereof | |
| CN221401441U (en) | Wind power generation wind power hydraulic braking device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |