Braking device of hydraulic generator

Abstract

The utility model discloses a hydro-generator braking device, which belongs to the technical field of hydro-generator braking and comprises a base, a welding block fixedly connected to the bottom of the base, a support arranged on one side of the base, a bearing arranged on one side, far away from the base, of the side face of the support, a rotating shaft arranged on the inner side of the bearing, and a rotating disc fixedly connected to the outer side of the rotating shaft. Braking assemblies are arranged on the two sides of the rotating disc, a perforated plate is arranged at the top of the base, an inserting rod is arranged on the side, close to the perforated plate, of the top of the base, a braking rod mechanism is arranged on the side, away from the inserting rod, of the side face of the perforated plate, and a thrust device is arranged on the outer side of the braking rod mechanism. The brake disc is fixed in the circular groove in the rotary disc through the threaded hole and the bolt, meanwhile, the gasket can reinforce connection of the bolt and prevent looseness, the conical hole in the surface of the brake disc can reduce the weight of the brake disc and enhance friction force, and through connection of the bolt and the rotary disc, the brake disc can be replaced, and friction loss of the rotary disc is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the water turbine brake technology field, concretely relates to a water turbine generator brake device. BACKGROUND

[0002] The water turbine is a power machine for converting the energy of water flow into rotating mechanical energy, and belongs to the turbine in fluid machinery. The brake is a device having the function of reducing the speed, stopping or keeping the stopped state of the moving part, and is a mechanical part for stopping or reducing the speed of the moving part in machinery. The brake mainly consists of a brake frame, a brake member and a control device, and some brakes are also provided with an automatic adjusting device for the gap between the brake members.

[0003] Chinese patent application No. CN202123141945. X discloses a novel water turbine generator brake device, which comprises a base, two insertion slots are formed in the upper surface of the base, rod grooves are formed in the left and right surfaces of the base, the rod grooves are connected with the two insertion slots, a long rod is movably sleeved in the rod groove, a cross rod and a threaded block are fixedly connected to the right end of the long rod, a threaded ring is fixedly connected to the right slot of the rod groove, and the threaded ring is threadedly sleeved with the threaded block. The position of the sliding block in the vertical groove is moved, and the sliding bar in the sliding groove plays a limiting role. With the movement of the sliding block, the lower ends of the two insertion blocks move in the two insertion slots. When the rod groove and the circular groove are in position, the long rod is inserted to prevent the sliding block from moving, thereby achieving the effect of adjusting the height of the horizontal rod on the sliding block. By adjusting the position of the horizontal rod, the horizontal rod can rub the different positions of the rotating disc, avoiding the horizontal rod always rubbing the same position on the rotating disc during mechanical braking, thereby greatly prolonging the service life of the rotating disc.

[0004] 1. The above-mentioned published patent cannot solve the problem of excessive friction loss of the rotating disc. The above-mentioned device relies on the friction between the horizontal rod and the rotating disc to brake the rotating shaft, and the friction loss is borne by the rotating disc, which affects the braking effect and daily maintenance; 2. The above-mentioned published patent needs to be manually pressed to brake the horizontal rod, which has a certain risk in the case of mechanical failure. UTILITY MODEL CONTENTS

[0005] To solve the problems in the above background art, the utility model provides a water turbine generator brake device, which has the characteristics of reducing loss with a brake disc and automatically pressing a horizontal rod.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a water -turbine generator brake device, including the base, the bottom fixed connection of base has the welding block, one side of base is provided with the support, the side away from base of support side is provided with bearing, the inboard of bearing is provided with the pivot, the outside fixed connection of pivot has the turntable, both sides of turntable are provided with brake assembly, the top of base is provided with the hole plate, the side close to hole plate of base top is provided with the plug rod, the side away from plug rod of hole plate side is provided with brake lever mechanism, the outside of brake lever mechanism is provided with the push device.

[0007] Preferably, the brake assembly comprises a brake disc, a circular groove, a threaded hole, a bolt and a gasket, wherein both sides of the turntable are provided with brake discs, a circular groove is formed on the side of the turntable close to the brake disc, a threaded hole is formed on the inner side of the circular groove, a bolt is threadedly connected to the inner side of the threaded hole, and a gasket is arranged on the side of the bolt close to the brake disc.

[0008] Preferably, a plurality of conical holes are formed on the outer side of the brake disc.

[0009] Preferably, a steel ring is fixedly connected to the side of the bearing close to the brake disc.

[0010] Preferably, the push device comprises a housing, an electric push rod, a sliding block, a sliding groove and a connecting block, wherein one side of the housing is provided with an electric push rod, one side of the electric push rod is fixedly connected to the brake lever mechanism, the side away from the electric push rod of the housing is provided with a sliding block, a sliding groove is formed on the side of the support close to the sliding block, the inner side of the housing is fixedly connected to a connecting block, and the side of the connecting block is fixedly connected to the hole plate.

[0011] Preferably, a gas cylinder is fixedly connected to the side of the base close to the housing, one side of the gas cylinder is provided with a connecting frame, and one end of the connecting frame away from the gas cylinder is fixedly connected to the hole plate.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. The utility model is provided with a brake assembly, the brake disc is a metal disc, which is fixed in the circular groove on the turntable through the threaded hole and the bolt, and the gasket can reinforce the connection of the six bolts to prevent loosening. The conical holes on the surface of the brake disc can reduce the weight of the brake disc and enhance the friction. The brake disc can be replaced through the connection of the bolt and the turntable, thereby reducing the friction loss of the turntable.

[0014] 2. The utility model is provided with a push device, the sliding block is slidably connected to the sliding groove on the support, and when the gas cylinder pushes the connecting frame to move, the housing will move along the sliding groove. The electric push rod can push the brake lever mechanism to press the brake disc, thereby achieving the effect of braking the pivot. Through the electric push rod pushing the brake lever mechanism, human contact with the device can be avoided, and the risk of danger is reduced.BRIEF DESCRIPTION OF DRAWINGS BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of the utility model;

[0016] Figure 2 is a structural schematic view of the utility model from the side;

[0017] Figure 3 is a structural schematic view of the brake assembly of the utility model;

[0018] Figure 4 is a structural schematic view of the utility model Figure 3 is a structural schematic view of the utility model from the side;

[0019] Figure 5 is a structural schematic view of the utility model from the side;

[0020] In the drawing: 1, base; 2, support; 3, bearing; 4, rotating shaft; 5, brake assembly; 51, brake disc; 52, circular groove; 53, threaded hole; 54, bolt; 55, gasket; 56, conical hole; 6, rotating disc; 7, insertion rod; 8, perforated plate; 9, thrust device; 91, shell; 92, electric push rod; 93, sliding block; 94, sliding groove; 95, connecting block; 10, welding block; 11, air cylinder; 12, connecting frame; 13, brake lever mechanism; 14, steel ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] Please refer to Figures 1-5 The utility model provides the following technical scheme: a water turbine generator brake device, including base 1, the bottom of base 1 is fixedly connected with welding block 10, one side of base 1 is provided with support 2, the side of support 2 away from base 1 is provided with bearing 3, the inner side of bearing 3 is provided with rotating shaft 4, the outer side of rotating shaft 4 is fixedly connected with rotating disc 6, both sides of rotating disc 6 are provided with brake assembly 5, the top of base 1 is provided with perforated plate 8, one side of base 1 top close to perforated plate 8 is provided with insertion rod 7, the side of perforated plate 8 away from insertion rod 7 is provided with brake lever mechanism 13, the outer side of brake lever mechanism 13 is provided with thrust device 9.

[0024] Specifically, the brake assembly 5 comprises a brake disc 51, a circular groove 52, a threaded hole 53, a bolt 54 and a gasket 55, wherein both sides of the rotating disc 6 are provided with the brake disc 51, one side of the rotating disc 6 close to the brake disc 51 is provided with the circular groove 52, the inner side of the circular groove 52 is provided with the threaded hole 53, the inner side of the threaded hole 53 is threadedly connected with the bolt 54, and one side of the bolt 54 close to the brake disc 51 is provided with the gasket 55.

[0025] By adopting the above technical scheme, the brake disc 51 is a metal disc, which is fixed in the circular groove 52 on the rotating disc 6 through the threaded hole 53 and the bolt 54, and the gasket 55 can reinforce the connection of the six bolts 54 to prevent loosening.

[0026] Specifically, the outer side of the brake disc 51 is provided with a plurality of tapered holes 56.

[0027] By adopting the above technical scheme, the tapered holes 56 on the surface of the brake disc 51 can reduce the weight of the brake disc 51 and enhance the friction.

[0028] Specifically, the outer side of the bearing 3 close to the brake disc 51 is fixedly connected with a steel ring 14.

[0029] By adopting the above technical scheme, when adding lubricating oil into the bearing 3, cotton is inserted into the steel ring 14 to prevent the lubricating oil from dropping onto the brake disc 51.

[0030] When the embodiment is used, the base 1 is provided with two supports 2, the supports 2 fix the bearing 3, the welding surface of the rotating shaft 4 is welded and connected with the rotating shaft of the hydraulic generator, and the welding block 10 is welded with the water turbine shell to fix the whole device. When the hydraulic generator rotates, the rotating shaft 4 and the rotating disc 6 rotate around the bearing 3, the plug rod 7 is pulled out, the perforated plate 8 can be stretched and retracted, the perforated plate 8 can drive the brake lever mechanism 13 to the specified position, and the state of the brake disc 51 is observed. The brake disc 51 is a metal disc, which is fixed in the circular groove 52 on the rotating disc 6 through the threaded hole 53 and the bolt 54, and the gasket 55 can reinforce the connection of the six bolts 54 to prevent loosening. The tapered holes 56 on the surface of the brake disc 51 can reduce the weight of the brake disc 51 and enhance the friction. When the hydraulic generator needs to be braked, the thrust device 9 pushes the brake lever mechanism 13 to press the brake disc 51 to achieve the purpose of braking. When the brake disc 51 reaches the scrap requirement, the bolt 54 is unscrewed, the brake disc 51 is cut off by a cutting tool, and a new brake disc 51 is replaced. When adding lubricating oil into the bearing 3, cotton is inserted into the steel ring 14 to prevent the lubricating oil from dropping onto the brake disc 51. Through the connection of the bolt 54 and the rotating disc 6, the brake disc 51 can be replaced, and the friction loss of the rotating disc 6 is reduced.

[0031] Embodiment 2

[0032] The difference between the embodiment and embodiment 1 is that the thrust device 9 comprises a shell 91, an electric push rod 92, a sliding block 93, a sliding groove 94 and a connecting block 95, wherein the electric push rod 92 is arranged on one side of the shell 91, the electric push rod 92 is fixedly connected with the brake lever mechanism 13 on one side, the sliding block 93 is arranged on the side of the shell 91 away from the electric push rod 92, the sliding groove 94 is arranged on the side of the support 2 close to the sliding block 93, the connecting block 95 is fixedly connected with the inside of the shell 91, and the connecting block 95 is fixedly connected with the hole plate 8 on the side.

[0033] By adopting the above technical scheme, the sliding block 93 is slidably connected with the sliding groove 94 on the support 2, the electric push rod 92 can push the brake lever mechanism 13 to press the brake disc 51, so as to achieve the effect of braking the rotating shaft 4, and the shell 91 and the hole plate 8 can be moved together through the connecting block 95.

[0034] Specifically, the base 1 is fixedly connected with the air cylinder 11 on the side close to the shell 91, the air cylinder 11 is provided with the connecting frame 12 on one side, and the connecting frame 12 is fixedly connected with the hole plate 8 on the side away from the air cylinder 11.

[0035] By adopting the above technical scheme, when the air cylinder 11 drives the connecting frame 12 and the hole plate 8 to move, the shell 91 will move along the sliding groove 94.

[0036] In use, the electric push rod 92 is connected with an external power supply, the sliding block 93 is slidably connected with the sliding groove 94 on the support 2, the electric push rod 92 can push the brake lever mechanism 13 to press the brake disc 51, so as to achieve the effect of braking the rotating shaft 4, the shell 91 and the hole plate 8 can be moved together through the connecting block 95, and when the air cylinder 11 drives the connecting frame 12 and the hole plate 8 to move, the shell 91 will move along the sliding groove 94.

[0037] The base 1, the support 2, the bearing 3, the rotating shaft 4, the rotating disc 6, the plug rod 7 and the hole plate 8 in the utility model have been disclosed in a novel hydraulic generator brake device in Chinese patent application No. CN202123141945.X.

[0038] The utility model discloses a working principle and use flow: the utility model discloses when using, base 1 is with two support 2, and support 2 is fixed to bearing 3, and the welding surface of rotating shaft 4 is connected with the rotation axis of water turbine generator and is welded with the water turbine casing, and the welding block 10 is welded to this fixed whole device, when water turbine generator rotates, will drive rotating shaft 4 and carousel 6 rotate around bearing 3, and pull out the plug rod 7, so that the hole plate 8 can extend contraction, and the hole plate 8 can drive brake lever mechanism 13 to reach the designated position, and the state of the brake disc 51 is observed, and the brake disc 51 is a kind of metal disc, is fixed in the circular groove 52 on carousel 6 by threaded hole 53 and bolt 54, simultaneously, and gasket 55 will reinforce the connection of six bolts 54, prevent loosening, and the taper hole 56 on the surface of brake disc 51 can reduce brake disc 51 weight, and enhance friction, when needing to brake water turbine generator, pushing device 9 pushes brake lever mechanism 13 and presses brake disc 51, to reach the purpose of braking, when brake disc 51 reaches the scrap requirement, unscrew bolt 54, and cut brake disc 51 with cutting tool and replace new brake disc 51, when adding lubricating oil into bearing 3, cotton is inserted into steel ring 14, can prevent lubricating oil from dropping on brake disc 51, and through the connection of bolt 54 and carousel 6, brake disc 51 can be replaced, and the friction loss of carousel 6 is reduced;Electric push rod 92 is connected with external power supply, sliding block 93 is slidably connected with sliding slot 94 on support 2, and electric push rod 92 can push brake lever mechanism 13 and press brake disc 51, to reach the effect of braking rotating shaft 4, and through connecting block 95, shell 91 and hole plate 8 can be moved together, when cylinder 11 pushes connecting frame 12 and hole plate 8 to move, shell 91 will move along sliding slot 94.

[0039] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A water turbine generator braking device comprising a base (1), characterized in that: The bottom of the base (1) is fixedly connected with a welding block (10), one side of the base (1) is provided with a support (2), the side of the support (2) away from the base (1) is provided with a bearing (3), the inner side of the bearing (3) is provided with a rotating shaft (4), the outer side of the rotating shaft (4) is fixedly connected with a rotating disc (6), both sides of the rotating disc (6) are provided with a brake assembly (5), the top of the base (1) is provided with a perforated plate (8), the side of the top of the base (1) close to the perforated plate (8) is provided with a plug rod (7), the side of the perforated plate (8) away from the plug rod (7) is provided with a brake lever mechanism (13), and the outer side of the brake lever mechanism (13) is provided with a thrust device (9).

2. A hydroelectric generator braking device as claimed in claim 1, wherein: The brake assembly (5) comprises a brake disc (51), a circular groove (52), a threaded hole (53), a bolt (54) and a gasket (55), wherein both sides of the rotating disc (6) are provided with the brake disc (51), the side of the rotating disc (6) close to the brake disc (51) is provided with the circular groove (52), the inner side of the circular groove (52) is provided with the threaded hole (53), the inner side of the threaded hole (53) is threadedly connected with the bolt (54), and the side of the bolt (54) close to the brake disc (51) is provided with the gasket (55).

3. A hydroelectric generator braking device as claimed in claim 2, wherein: The outer side of the brake disc (51) is provided with a plurality of tapered holes (56).

4. A hydroelectric generator braking device as claimed in claim 2, wherein: The outer side of the bearing (3) close to the brake disc (51) is fixedly connected with a steel ring (14).

5. A hydroelectric generator braking device as claimed in claim 1, wherein: The thrust device (9) comprises an outer shell (91), an electric push rod (92), a sliding block (93), a sliding groove (94) and a connecting block (95), wherein one side of the outer shell (91) is provided with the electric push rod (92), one side of the electric push rod (92) is fixedly connected with the brake lever mechanism (13), the side of the outer shell (91) away from the electric push rod (92) is provided with the sliding block (93), the side of the support (2) close to the sliding block (93) is provided with the sliding groove (94), and the inner side of the outer shell (91) is fixedly connected with the connecting block (95), and the side of the connecting block (95) is fixedly connected with the perforated plate (8).

6. A hydroelectric generator braking device as claimed in claim 5, wherein: The side of the base (1) close to the outer shell (91) is fixedly connected with an air cylinder (11), one side of the air cylinder (11) is provided with a connecting frame (12), and one end of the connecting frame (12) away from the air cylinder (11) is fixedly connected with the perforated plate (8).

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