CN209196003U - A kind of wind power generating set fluid brake - Google Patents
A kind of wind power generating set fluid brake Download PDFInfo
- Publication number
- CN209196003U CN209196003U CN201822153198.3U CN201822153198U CN209196003U CN 209196003 U CN209196003 U CN 209196003U CN 201822153198 U CN201822153198 U CN 201822153198U CN 209196003 U CN209196003 U CN 209196003U
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- piston
- brake
- cylinder
- wind power
- power generating
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Abstract
The utility model relates to a kind of wind power generating set fluid brakes, technical solution is, brake disc including wind power generating set brake system and the braking mechanism for being separately positioned on brake disc two sides, braking mechanism includes hydraulic cylinder, hydraulic cylinder includes cylinder body and is placed in the intracorporal piston of cylinder in being slidingly sealed, the inner chamber of cylinder block of piston two sides respectively constitutes pressure chamber and pressure-releasing chamber, it is connected on the cylinder body of side and always with pressure chamber where pouring orifice and oil return opening are respectively positioned on pressure chamber, the piston end end face center of side is coaxially connected with the piston rod for stretching out cylinder ends where pressure-releasing chamber, brake block is on the piston rod end of extension, drain tap is provided on cylinder side wall where piston sliding scale, the utility model is transformed on the basis of existing wind power generating set brake system hydraulic cylinder, play the role of early warning, it mentions Show staff, is replaced to serious brake block is worn, easy to use, effect is good.
Description
Technical field
The utility model relates to a kind of wind power generating set fluid brakes.
Background technique
Wind power generating set brake system includes yaw brake and main shaft brake.After the completion of set yaw is to wind, investment
Yaw brake can make unit keep face wind state, and when wind direction changes, yaw brake is opened, and unit carries out partially again
Boat is to wind；In the case where unit breaks down or needs emergency shutdown, main shaft brake investment can make unit quick shutdown, and lock
Main shaft avoids blower wind wheel from rotating.Currently, unit brake system mainly uses hydraulic brake system, component part is mainly wrapped
Fuel tank, the cylinder body of hydraulic cylinder, pouring orifice, oil return opening, piston and brake block, brake disc etc. are included, principle is driven by oil pressure
Piston straight reciprocating motion makes brake block compress brake disc and is braked.
With the increase of brake number, brake block can be gradually worn out, and when brake block is worn to a certain extent, be needed
Maintenance replacement is carried out, to keep brake system reliable and stable.But brake block state of wear needs artificial judgment, additionally, due to wind-powered electricity generation
Field unit is more, overhauls task weight, and usually not in time, the safe and stable operation of fan brings great threat to brake pad replacing,
Repeatedly occur because unit brake system maintenance it is not in place caused by accident, such as on September 19th, 2017, No. 62 wind of Hebei wind power plant
The brake pad wear of machine high speed brake system lock 2 causes itself and brake disc continuous frictional to generate high temperature extremely, causes machinery space fire thing
Therefore it eventually leads to whole unit and is burned out.Brake system alarm without exception and self-protection function, to the maintenance work of brake system
Great difficulty is brought, also brings very big uncertainty to unit safety stable operation, therefore, to Wind turbines water brake system
It is imperative that system is transformed.
Utility model content
For above situation, for the defect for overcoming the prior art, the purpose of the utility model is just to provide a kind of wind-force hair
Motor group fluid brake can effectively solve brake block alarm without exception and self-protection function, and replacement brings safety not in time
The problem of hidden danger.
The technical solution that the utility model solves is a kind of wind power generating set fluid brake, including wind-power electricity generation
The brake disc of unit brake system and the braking mechanism for being separately positioned on brake disc two sides, braking mechanism include hydraulic cylinder, liquid
Brake block corresponding with brake disc, for brake is housed, the pouring orifice of hydraulic cylinder passes through oil inlet pipe on the piston end of cylinder pressure
Road is connected with the oil outlet of fuel tank, and the oil return opening of hydraulic cylinder is connected by oil return line with fuel tank oil inlet, sets on oil inlet pipe
It is equipped with oil inlet valve, is provided with oil return valve on oil return line, hydraulic cylinder includes cylinder body and to be placed in cylinder intracorporal in being slidingly sealed
Piston, the inner chamber of cylinder block of piston two sides respectively constitute pressure chamber and pressure-releasing chamber, and pouring orifice and oil return opening are respectively positioned on where pressure chamber
It is connected on the cylinder body of side and always with pressure chamber, the piston end end face center of side is coaxially connected with stretching cylinder body where pressure-releasing chamber
The piston rod of end, brake block are set on the cylinder side wall where piston sliding scale on the piston rod end of extension
Be equipped with drain tap, the original depth of brake block is D, after the pad wear that brakes with a thickness of d, when d > D/2, piston and inboard wall of cylinder block
Sealing range cover drain tap always, i.e., drain tap is not connected to pressure chamber, as d < D/2, piston and inboard wall of cylinder block it is close
Drain tap is not completely covered for envelope range, i.e. drain tap is connected with pressure chamber, and drain tap is through drain line and oil return valve, fuel tank
Between oil return line be connected.
The utility model structure novel is unique, and advantages of simple is easy to produce, easy to operate, at low cost, in existing wind-power electricity generation
It is transformed on the basis of unit brake system hydraulic cylinder, i.e., increases drain tap on the side wall of hydraulic cylinder body,
By the drain tap, when brake block state of wear in the normal range when (half that thickness is greater than original depth), piston
Drain tap is covered always with the sealing range of inboard wall of cylinder block, i.e. drain tap does not work, and brake system can work normally；Work as brake
When vehicle pad wear need to seriously be replaced (half that thickness is less than original depth), since brake block thickness is reduced, piston
Shift motion will increase, and be exposed to drain tap within the scope of pressure chamber, and coupled logical, the intracavitary oil that presses is by letting out
Hydraulic fluid port flow back into fuel tank, so that the indoor pressure of oil cannot keep, pressure is also not enough to that piston is pushed to continue to travel, and causes to brake
Piece cannot embrace brake disc, therefore the effect of brake is not achieved, and can thus play the role of early warning, prompt staff,
It is replaced to serious brake block is worn, easy to use, effect is good, is the innovation in wind power generating set brake system.
Detailed description of the invention
Fig. 1 is the oil circuit connection schematic diagram of the utility model.
Fig. 2 is the main view of the utility model hydraulic cylinder.
Fig. 3 is the cross-sectional view of the utility model hydraulic cylinder.
Fig. 4 is that (brake block is not worn, and is contacted with brake block, real for the cross-sectional view of the utility model hydraulic cylinder use state
Border is with a thickness of original depth D).
Fig. 5 is that (brake pad wear is more than D/2, and is connect with brake block for the cross-sectional view of the utility model hydraulic cylinder use state
Touching, actual (real) thickness are less than original depth D/2).
Specific embodiment
Specific embodiment of the present utility model is described in further detail below in conjunction with attached drawing.
It is provided by Fig. 1-5, the utility model includes the brake disc 1 of wind power generating set brake system and is separately positioned on
The braking mechanism of brake disc two sides, braking mechanism include hydraulic cylinder (as shown in Fig. 2, the hydraulic cylinder A and hydraulic cylinder of respectively two sides
B), brake block 7 corresponding with brake disc, for brake is housed, the pouring orifice 10 of hydraulic cylinder is logical on the piston end of hydraulic cylinder
It crosses oil inlet pipe 13 to be connected with the oil outlet of fuel tank 18, the oil return opening 11 of hydraulic cylinder passes through oil return line 14 and 18 oil inlet of fuel tank
It is connected, oil inlet valve 16 is provided on oil inlet pipe 13, oil return valve 17 is provided on oil return line 14, hydraulic cylinder includes cylinder body
2 and in the piston being placed in cylinder body 23 is slidingly sealed, the inner chamber of cylinder block of 3 two sides of piston respectively constitutes pressure chamber 8a and pressure-releasing chamber
It is connected on the cylinder body 2 of side and always with pressure chamber 8a where 8b, pouring orifice 10 and oil return opening 11 are respectively positioned on pressure chamber 8a, pressure release
The piston end end face center of side where chamber 8b is coaxially connected with the piston rod 4 for stretching out 2 end of cylinder body, and brake block 7 is mounted in extension
Point 4 end of piston rod on, be provided with drain tap 12 on 2 side wall of cylinder body where 3 sliding scale of piston, brake block 7 it is initial
With a thickness of D, brake block 7 wear after with a thickness of d, when d > D/2, the sealing range of piston 3 and inboard wall of cylinder block covers draining always
Mouth 12, i.e. drain tap 12 are not connected to pressure chamber 8a, and as d < D/2, piston 3 and the sealing range of inboard wall of cylinder block do not cover completely
Lid drain tap 12, i.e. drain tap 12 are connected with pressure chamber 8a, and drain tap 12 is through drain line 15 and oil return valve 17, fuel tank 18
Between oil return line be connected.
Equipped with the locating support 9 for stationary housing position on the cylinder body 2, when installation, cylinder body passes through locating support
Fixed, fixed form can be welding, be bolted, the fixed form of the routine such as flanged joint, and the purpose is to consolidate cylinder body
It is fixed, so that piston rod can do piston motion relative to cylinder body, so that brake block compresses brake disc, play braking action.
The first sliding ring 5 is provided between 3 outer wall of piston and inboard wall of cylinder block；The piston rod 4 and cylinder body
Between be provided with the second sliding ring 6, first sliding ring 5 and the second sliding ring 6 are the prior art, can
To prevent oil pressure from leaking, such as the piston seal technology of y-shaped ring routine can be used.By taking the first sliding ring 5 as an example,
It along the circumferential direction slots on the outer wall of piston, y-shaped ring is arranged in slot by support pads, plays the role of being slidingly sealed this
Technology is the routine techniques of the field technical staff.
The service condition that the utility model uses is: when brake block state of wear in the normal range when (thickness be greater than just
The half of beginning thickness), oil inlet valve 16 is opened, and oil return valve 17 is closed, and the oil in fuel tank enters cylinder body by pouring orifice
Pressure chamber, piston driving piston rod under oil pressure effect pushes brake block to compress brake disc brake, piston and inboard wall of cylinder block
Sealing range covers drain tap always, i.e. drain tap does not work, and brake system can work normally；When brake block serious wear
When need to be replaced (half that thickness is less than original depth), since brake block thickness is reduced, piston shift motion will increase
After adding, it is exposed to drain tap within the scope of pressure chamber, coupled logical, the intracavitary oil that presses is flow back by drain tap
Fuel tank, so that the indoor pressure of oil cannot keep, pressure is also not enough to that piston is pushed to continue to travel, and causes brake block that cannot embrace
Brake disc, therefore the effect of brake is not achieved, it can thus play the role of early warning, staff be prompted, to serious wear
Brake block replaced, novel and unique, advantages of simple is easy to produce, and easy to operate, at low cost, easy to use, effect is good, is
Innovation in wind power generating set brake system has good social and economic benefit.
Claims (4)
1. a kind of wind power generating set fluid brake, brake disc (1) including wind power generating set brake system and point
The braking mechanism of brake disc two sides is not set, and braking mechanism includes hydraulic cylinder, is equipped on the piston end of hydraulic cylinder and brake disc
Brake block (7) corresponding, for brake, pouring orifice (10) the going out by oil inlet pipe (13) and fuel tank (18) of hydraulic cylinder
Hydraulic fluid port is connected, and the oil return opening (11) of hydraulic cylinder is connected by oil return line (14) with fuel tank (18) oil inlet, oil inlet pipe (13)
On be provided with oil inlet valve (16), oil return valve (17) are provided on oil return line (14), which is characterized in that hydraulic cylinder includes cylinder
Body (2) and in the piston (3) being placed in cylinder body (2) is slidingly sealed, the inner chamber of cylinder block of piston (3) two sides respectively constitutes pressure chamber
(8a) and pressure-releasing chamber (8b), pouring orifice (10) and oil return opening (11) are respectively positioned on the cylinder body (2) of pressure chamber (8a) place side and begin
It is connected eventually with pressure chamber (8a), the piston end end face center of side where pressure-releasing chamber (8b), which is coaxially connected with, stretches out cylinder body (2) end
The piston rod (4) in portion, brake block (7) is on piston rod (4) end of extension, the cylinder where piston (3) sliding scale
Be provided with drain tap (12) on body (2) side wall, the original depth of brake block (7) is D, after brake block (7) abrasion with a thickness of d, d
When > D/2, the sealing range of piston (3) and inboard wall of cylinder block covers drain tap (12) always, i.e. drain tap (12) and pressure chamber
(8a) is not connected to, and as d < D/2, drain tap (12), i.e. draining are not completely covered for the sealing range of piston (3) and inboard wall of cylinder block
Mouth (12) is connected with pressure chamber (8a), and drain tap (12) is through between drain line (15) and oil return valve (17), fuel tank (18)
Oil return line be connected.
2. wind power generating set fluid brake according to claim 1, which is characterized in that on the cylinder body (2)
Equipped with the locating support (9) for stationary housing position.
3. wind power generating set fluid brake according to claim 1, which is characterized in that piston (3) outer wall
The first sliding ring (5) are provided between inboard wall of cylinder block.
4. wind power generating set fluid brake according to claim 1, which is characterized in that the piston rod (4)
The second sliding ring (6) are provided between cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822153198.3U CN209196003U (en) | 2018-12-21 | 2018-12-21 | A kind of wind power generating set fluid brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822153198.3U CN209196003U (en) | 2018-12-21 | 2018-12-21 | A kind of wind power generating set fluid brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209196003U true CN209196003U (en) | 2019-08-02 |
Family
ID=67429967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822153198.3U Expired - Fee Related CN209196003U (en) | 2018-12-21 | 2018-12-21 | A kind of wind power generating set fluid brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209196003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233778A (en) * | 2021-11-26 | 2022-03-25 | 中车株洲电力机车有限公司 | Brake cylinder for rail transit and brake clamp unit thereof |
-
2018
- 2018-12-21 CN CN201822153198.3U patent/CN209196003U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114233778A (en) * | 2021-11-26 | 2022-03-25 | 中车株洲电力机车有限公司 | Brake cylinder for rail transit and brake clamp unit thereof |
| CN114233778B (en) * | 2021-11-26 | 2023-08-08 | 中车株洲电力机车有限公司 | Brake cylinder for track traffic and brake clamp unit thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190802 Termination date: 20211221 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |