CN209839023U - Guide structure in hydraulic generator brake's jar - Google Patents
Guide structure in hydraulic generator brake's jar Download PDFInfo
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- CN209839023U CN209839023U CN201920178323.8U CN201920178323U CN209839023U CN 209839023 U CN209839023 U CN 209839023U CN 201920178323 U CN201920178323 U CN 201920178323U CN 209839023 U CN209839023 U CN 209839023U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model discloses a guide structure in hydraulic generator stopper's jar, including the cylinder body, the front surface of cylinder body is close to bottom edge and has seted up the air inlet oil inlet, and the top of cylinder body is fixed with the braking layer board, and the top of braking layer board is fixed with the braking brake shoe, and the top of braking brake shoe is fixed with the brake ring. The utility model discloses in, through hole and guide bar on the guide piston slide to inlay and establish, thereby make the guide piston when reciprocating, stability more that can, slide at the interior table wall of spout through the slide, because the effect of smooth pearl, thereby can be better reduce frictional force, make the slide in the spout when the table wall is gliding, can be more convenient, make it can be better drive the guide piston through the slide and carry out stable reciprocating, be convenient for make the guide piston carry out accurate removal, make that it can be better use the stopper, thereby the damage of reduction equipment that can be better.
Description
Technical Field
The utility model relates to a hydraulic generator stopper technical field especially relates to an in-cylinder guide structure of hydraulic generator stopper.
Background
The brake of the water turbine generator set is the most main part of a mechanical brake device of the water turbine generator set, when the rotating speed is reduced to 30-40% of the rated rotating speed in the shutdown process of a generator, continuous braking is carried out on a rotor of the generator so as to avoid the problem that a thrust bearing is damaged to cause the burnout of a tile surface due to the fact that an oil film at a low speed is damaged, high-pressure oil (or gas) is injected into the brake to jack up a rotating part of the generator before installation, maintenance and starting, and when the brake is used, a guide piston in a cylinder body can move.
However, in the conventional art, while the guide piston in the brake is moving up and down, the guide key guides the up-and-down movement direction of the guide piston. But in long-term use, the guide key is worn and torn easily to unable performance leads to the guide piston to take place the skew easily at the in-process that reciprocates, and then makes the braking effect greatly reduced of stopper, makes it can not be fine brake hydraulic generator, thereby can cause the damage of equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an in-cylinder guide structure of a hydraulic generator brake.
In order to achieve the above purpose, the utility model adopts the following technical scheme: an in-cylinder guide structure of a hydraulic generator brake comprises a cylinder body, wherein an air inlet is formed in the front surface of the cylinder body close to the bottom edge, a brake supporting plate is fixed to the top of the cylinder body, a brake shoe is fixed to the top of the brake supporting plate, a brake ring is fixed to the top of the brake shoe, a guide piston is embedded in the cylinder body in a sliding mode, a working piston is fixed to the bottom surface of the inside of the cylinder body, a sealing ring is attached to the outer surface of the working piston, the outer surface of the sealing ring and the inner surface wall of the cylinder body are arranged in a sliding mode, guide blocks are welded to the inner surface walls of the two sides of the cylinder body along a vertical center line, a sliding groove is formed in the outer surface of one side of each guide block along the vertical center line, threaded holes are formed in the centers of the outer surfaces, and one end of the adjusting screw rod extends to the outside of the cylinder body, and a handle is welded at one end of the adjusting screw rod.
As a further description of the above technical solution:
the interior table wall equidistance of spout slides and inlays and be equipped with a plurality of sliding balls, the interior table wall of spout slides and inlays and be equipped with the slide, and the outside of slide and the surface slip of sliding ball inlay and establish.
As a further description of the above technical solution:
the sliding plates are arranged in two, and the other outer sides of the two sliding plates are fixed with the outer surface of the guide piston.
As a further description of the above technical solution:
and guide rods are fixed on two sides of the top of the working piston close to the center along the vertical direction.
As a further description of the above technical solution:
through holes are formed in the two sides of the inner part of the guide piston, which are close to the center, along the vertical direction, and the inner surface wall of each through hole is embedded with the outer surface of the guide rod in a sliding mode.
As a further description of the above technical solution:
a butterfly spring is fixed at the center of the top of the working piston, the top end of the butterfly spring is fixedly connected with the center of the bottom of the guide piston, a first rubber tube is sleeved on the outer surface of the butterfly spring, and the top and the bottom of the first rubber tube are respectively adhered to the bottom of the guide piston and the top of the working piston.
As a further description of the above technical solution:
the top of working piston is close to both sides edge and all is fixed with the telescopic link, and the top of telescopic link and guide piston's bottom fixed connection, the surface cover of telescopic link is equipped with reset spring, reset spring's surface cover is equipped with the second rubber tube, the top and the bottom of second rubber tube respectively with guide piston's bottom and working piston's top adhesion.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses in, at first slide with the guide bar through the through hole on the guide piston and inlay and establish, thereby make the guide piston when reciprocating, stability more that can, slide at the interior table wall of spout through the slide in addition, because the effect of smooth pearl, thereby can be better reduce frictional force, make the slide in the spout interior table wall gliding time, can be more convenient, make it can be better drive the guide piston through the slide and carry out stable reciprocating, be convenient for make the guide piston carry out accurate removal, make that it can be better use the stopper, thereby the damage of reduction equipment that can be better.
2. The utility model discloses in, guidance quality for the stopper is better, both sides surface center department all sets up threaded hole along the horizontal direction around the cylinder body, the interior table wall threaded connection of screw hole has adjusting screw, this adjusting screw top is provided with the screw thread, the tip that is close to guide piston is the polished rod, do not set up the screw thread, the tip that is used for making adjusting screw is offered in its gliding spout in guide piston's both sides, along with guide piston reciprocates, adjusting screw does not set up threaded tip and slides in the spout, lead, on the basis of above-mentioned effect, guide structure's guidance quality is better.
3. The utility model discloses in, through reset spring's effect to make the direction piston when removing, can compress reset spring and telescopic link, through reset spring's restoring force, make that it can be better reset the telescopic link, thereby can be better reset the direction piston through the telescopic link, thereby make its when using the direction piston, can be more convenient, be convenient for use.
Drawings
Fig. 1 is a front sectional view of an in-cylinder guide structure of a hydraulic generator brake according to the present invention;
fig. 2 is a left side sectional view of the in-cylinder guide structure of the hydraulic generator brake according to the present invention;
fig. 3 is a top sectional view of a guide block portion of an in-cylinder guide structure of a hydraulic generator brake according to the present invention;
fig. 4 is a partially cut-away enlarged view of a portion in fig. 2 of the in-cylinder guide structure of the hydraulic generator brake according to the present invention.
In the figure: 1. a cylinder body; 2. a working piston; 3. a seal ring; 4. a guide block; 5. a chute; 6. a sliding bead; 7. braking the supporting plate; 8. a brake shoe; 9. a brake ring; 10. a belleville spring; 11. a first rubber tube; 12. a guide bar; 13. a through hole; 14. a pilot piston; 15. a slide plate; 16. an air inlet oil inlet; 17. adjusting the screw rod; 18. a handle; 19. a threaded hole; 20. a second rubber tube; 21. a return spring; 22. a telescopic rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides an embodiment: the utility model provides a hydraulic generator brake's guide structure in jar, includes cylinder body 1, and the bottom edge of this cylinder body 1 and the position that is located the front surface have seted up air inlet 16, and the top of this cylinder body 1 is fixed with braking layer board 7, and the top of braking layer board 7 is fixed with brake shoe 8, and brake shoe 8 is arc platelike structure, holds the braking piece tightly when braking with the tile form brake pad that cast iron or other materials made, makes braking piece stall through friction. In this process, the braking device converts the huge kinetic energy into heat energy to be dissipated into the atmosphere. A brake ring 9 is fixed on the top of the brake shoe 8, and when the brake is used, the brake ring 9 can generate heat and deform to brake; above-mentioned brake layer board 7 and brake shoe 8 to and the fixed connection structure between the brake ring 9 all designs the non-directivity, can adapt to angle of adjustment when the unit overhauls at every turn, convenient the maintenance, it is even to make brake shoe 8 atress simultaneously, brake layer board 7 and brake shoe 8, and the mounting means and the fixed connection structure between the brake ring 9 all adopt the mode commonly used in China, its mounting means and fixed connection structure are known, consequently no longer repeated explanation.
Firstly, the inside slip of cylinder body 1 inlays and is equipped with guide piston 14, the inside bottom surface of cylinder body 1 is fixed with work piston 2, the attached sealing washer 3 that is equipped with in surface of work piston 2, sealing washer 3 adopts rubber class elastic material, and sealing washer 3 slides with the interior table wall of cylinder body 1 and sets up, all there is guide block 4 along vertical central line welding on the interior table wall of cylinder body 1 inside and lie in both sides, spout 5 has inwards been seted up along vertical central line to the surface of guide block 4, it is 5 the purpose to have seted up spout along vertical central line in order to make slide 15 when gliding, can reciprocate along vertical direction, avoid the skew, play good guide effect to slide 15, the length of guide block 4 is less than the height of cylinder body 1 inner chamber and is greater than the gliding maximum distance of slide 15, avoid guide block 4 length overlength, influence the slip of work piston 2 in cylinder body 1.
Furthermore, a sliding ball 6 is arranged in the sliding groove 5 along the vertical center line, and when the sliding plate 15 slides on the inner surface wall of the sliding groove 5, the sliding friction force can be reduced due to the action of the sliding ball 6, so that the sliding plate 15 can slide more smoothly when sliding in the sliding groove 5.
Further, two sliding plates 15 are provided in total, and the two sliding plates 15 are fixed to the outer surfaces of the guide pistons 14, respectively.
Secondly, threaded holes 19 are formed in the centers of the outer surfaces of the front side and the rear side of the cylinder body 1 along the horizontal direction, an adjusting screw 17 is in threaded connection with the inner surface wall of each threaded hole 19, threads are formed in the upper portion of each adjusting screw 17, a polished rod is arranged at the end portion close to the guide piston 14, threads are not formed, sliding grooves for enabling the end portions of the adjusting screws 17 to slide in the sliding grooves are formed in the two sides of the guide piston 14, and the end portions, which are not provided with the threads, of the adjusting screws 17 slide in the sliding grooves along with the up-; one end of the adjusting screw 17 extends to the outside of the cylinder body 1, the other end of the adjusting screw 17 is welded with a handle 18, and the tightness of the top-mounted guide piston 14 body of the adjusting screw 17 is controlled by rotating the handle 18 in a threaded hole 19 through controlling the adjusting screw 17 to rotate.
And thirdly, a through hole 13 is formed in the guide piston 14, the through hole 13 is arranged in parallel, a guide rod 12 is embedded in the through hole 13 in a sliding manner, one end of the guide rod 12 is fixedly propped against the brake shoe 8, the other end of the guide rod 12 is fixedly arranged on the working piston, the guide piston 14 slides up and down on the guide rod 12, and the guide piston 14 has good guidance performance and is more stable in the process of sliding up and down.
The utility model discloses an among the embodiment, the top center department of working piston 2 is fixed with disc spring 10, and disc spring 10's top and the bottom center department fixed connection of guide piston 14 set up the messenger working piston 2 that disc spring 10 can be better and reset. The outside cover of belleville spring 10 is equipped with first rubber tube 11, and the top and the bottom of first rubber tube 11 respectively with the bottom of guide piston 14 and the top adhesion of working piston 2, and belleville spring 10 sets up first rubber tube 11 outward, improves belleville spring 10's stability.
The utility model discloses an in the embodiment, the top of working piston 2 is close to both sides edge and all is fixed with telescopic link 22, and the top of telescopic link 22 and the bottom fixed connection of guide piston 14, the surface cover of telescopic link 22 is equipped with reset spring 21, the surface cover of reset spring 21 is equipped with second rubber tube 20, the top and the bottom of second rubber tube 20 respectively with the bottom of guide piston 14 and the top adhesion of working piston 2, the purpose that sets up reset spring 21 is, working piston 2 carries out the in-process that removes at the pressurized, can compress reset spring 21 and telescopic link 22, promote guide piston 14 and move upwards, guide piston 14 is at the in-process that rises, pulling telescopic link 22 stretches out. The telescopic rod 22 can be better reset through the elastic restoring force of the reset spring 21, and the guide piston 14 is more stable in the using process.
In the utility model, firstly, the guide block 4 is welded on the inner side of the cylinder body 1 and the inner surface walls at the two sides along the vertical central line, the outer surface of the guide block 4 is provided with a chute 5 inwards along the vertical central line, and the sliding plates 15 fixedly arranged at the two sides of the guide piston 14 slide in the chute 5 for guiding, thereby improving the guidance of the guide structure in the cylinder; in addition, the sliding ball 6 is arranged in the sliding groove 5 along the vertical center line, and when the sliding plate 15 slides on the inner surface wall of the sliding groove 5, the sliding friction force can be reduced due to the action of the sliding ball 6, so that the sliding plate 15 can slide more smoothly when sliding in the sliding groove 5.
Secondly, threaded holes 19 are formed in the centers of the outer surfaces of the front side and the rear side of the cylinder body 1 along the horizontal direction, an adjusting screw 17 is in threaded connection with the inner surface wall of each threaded hole 19, threads are formed in the upper portion of each adjusting screw 17, a polished rod is arranged at the end portion close to the guide piston 14, threads are not formed, sliding grooves for enabling the end portions of the adjusting screws 17 to slide in the sliding grooves are formed in the two sides of the guide piston 14, and the end portions, which are not provided with the threads, of the adjusting screws 17 slide in the sliding grooves along with the up-; on the basis, the guidance performance of the guide piston 14 is further improved, and the structural stability is better.
And thirdly, a through hole 13 is formed in the guide piston 14, the through hole 13 is arranged in parallel, a guide rod 12 is embedded in the through hole 13 in a sliding manner, one end of the guide rod 12 is fixedly propped against the brake shoe 8, the other end of the guide rod 12 is fixedly arranged on the working piston, the guide piston 14 slides up and down on the guide rod 12, and the guide piston 14 has good guidance performance and is more stable in the process of sliding up and down.
The utility model discloses well guide piston 14 leads from the extroversion to the inside, and stable in structure has overcome the guide piston and has taken place the skew easily at the in-process that reciprocates, and then makes the braking effect greatly reduced of stopper, makes it can not be fine brake hydraulic generator to can cause the problem of the damage of equipment.
The utility model discloses a theory of operation: oil or gas enters the cylinder body 1 from the air inlet and oil inlet 16, the pressure in the cylinder body 1 is increased, the working piston 2 moves upwards, the belleville spring 10 and the return spring 21 contract, and at the moment, the telescopic rod 22 contracts to push the guide piston 14 to move upwards; in the process of moving the guide piston 14, the through hole 13 penetrates through the outer surface of the guide rod 12 in a sliding manner, so that the guide piston 14 moves along the vertical direction, and meanwhile, the sliding plate 15 slides on the inner surface wall of the sliding chute 5, and due to the action of the sliding ball 6, the friction force during sliding is reduced, so that the sliding plate 15 slides more smoothly when sliding. Secondly, as the guide piston 14 moves up and down, the end part of the adjusting screw 17 without threads slides in the sliding groove to guide, and the inner part and the outer part of the guide piston 14 are guided simultaneously, so that the stability is better. After braking is completed, the pilot piston 14 moves downward, and the pilot piston 14 can be better returned by the restoring force of the return spring 21 and the belleville spring 10.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. The utility model provides a hydraulic generator brake's guide structure in jar, includes cylinder body (1), its characterized in that: an air inlet (16) is formed in the front surface of the cylinder body (1) close to the edge of the bottom, a brake supporting plate (7) is fixed to the top of the cylinder body (1), a brake shoe (8) is fixed to the top of the brake supporting plate (7), a brake ring (9) is fixed to the top of the brake shoe (8), a guide piston (14) is embedded in the cylinder body (1) in a sliding mode, a working piston (2) is fixed to the bottom of the inside of the cylinder body (1), a sealing ring (3) is attached to the outer surface of the working piston (2), the outer surface of the sealing ring (3) and the cylinder body (1) are arranged in a sliding mode, guide blocks (4) are welded to the inner surface walls of the two sides of the cylinder body (1) along a vertical center line, sliding grooves (5) are formed in the outer surface of one side of each guide block (4), threaded holes (19) are formed in the, the inner surface wall of the threaded hole (19) is in threaded connection with an adjusting screw rod (17), one end of the adjusting screw rod (17) extends to the outside of the cylinder body (1), and a handle (18) is welded at one end of the adjusting screw rod (17).
2. The in-cylinder guide structure of a hydro-generator brake according to claim 1, wherein: the interior table wall equidistance of spout (5) slides and inlays and be equipped with a plurality of sliding balls (6), the interior table wall of spout (5) slides and inlays and be equipped with slide (15), and the outside of slide (15) is inlayed with the surface slip of sliding ball (6) and is established.
3. The in-cylinder guide structure of a hydro-generator brake according to claim 2, wherein: the number of the sliding plates (15) is two, and the other outer sides of the two sliding plates (15) are fixed with the outer surface of the guide piston (14).
4. The in-cylinder guide structure of a hydro-generator brake according to claim 1, wherein: guide rods (12) are fixed on two sides of the top of the working piston (2) close to the center along the vertical direction.
5. The in-cylinder guide structure of a hydro-generator brake according to claim 1, wherein: through holes (13) are formed in the two sides of the inner part of the guide piston (14) close to the center along the vertical direction, and the inner surface wall of each through hole (13) is embedded with the outer surface of the guide rod (12) in a sliding mode.
6. The in-cylinder guide structure of a hydro-generator brake according to claim 1, wherein: a butterfly spring (10) is fixed at the center of the top of the working piston (2), the top end of the butterfly spring (10) is fixedly connected with the center of the bottom of the guide piston (14), a first rubber tube (11) is sleeved on the outer surface of the butterfly spring (10), and the top and the bottom of the first rubber tube (11) are respectively adhered to the bottom of the guide piston (14) and the top of the working piston (2).
7. The in-cylinder guide structure of a hydro-generator brake according to claim 1, wherein: the top of working piston (2) is close to both sides edge and all is fixed with telescopic link (22), and the top of telescopic link (22) and the bottom fixed connection of guide piston (14), the surface cover of telescopic link (22) is equipped with reset spring (21), the surface cover of reset spring (21) is equipped with second rubber tube (20), the top and the bottom of second rubber tube (20) respectively with the bottom of guide piston (14) and the top adhesion of working piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920178323.8U CN209839023U (en) | 2019-01-31 | 2019-01-31 | Guide structure in hydraulic generator brake's jar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920178323.8U CN209839023U (en) | 2019-01-31 | 2019-01-31 | Guide structure in hydraulic generator brake's jar |
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| Publication Number | Publication Date |
|---|---|
| CN209839023U true CN209839023U (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920178323.8U Active CN209839023U (en) | 2019-01-31 | 2019-01-31 | Guide structure in hydraulic generator brake's jar |
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| CN (1) | CN209839023U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074079A (en) * | 2021-03-31 | 2021-07-06 | 湖北清江水电开发有限责任公司 | Hydraulic turbine air brake braking air pressure control self-checking device and method |
-
2019
- 2019-01-31 CN CN201920178323.8U patent/CN209839023U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113074079A (en) * | 2021-03-31 | 2021-07-06 | 湖北清江水电开发有限责任公司 | Hydraulic turbine air brake braking air pressure control self-checking device and method |
| CN113074079B (en) * | 2021-03-31 | 2022-10-04 | 湖北清江水电开发有限责任公司 | Hydraulic turbine air brake braking air pressure control self-checking device and method |
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