A speed increasing gearbox for tidal power generation with brake cooling and heat dissipation functions

Abstract

The present invention relates to the technical field of speed increaser, and in particular to a speed increaser for tidal power generation with brake cooling and heat dissipation function. The present invention discloses a speed increaser for tidal power generation with brake cooling and heat dissipation function, comprising a box body and a speed increaser body arranged inside the box body, the speed increaser body comprising an output shaft and an input shaft, the outer wall of the output shaft is fixedly provided with a power rod, the side wall of the box body is fixedly provided with a storage box and a bracket; as well as a feeding piece and a discharging piece, the feeding piece is located at the top of the storage box, and the discharging piece is fixed at the top of the feeding piece; the outer wall of the input shaft is fixedly provided with a brake disc, the outer wall of the box body is fixedly provided with a support frame 1, the support frame 1 is provided with an electric push rod, the electric push rod drives the brake pad 1 to approach the brake disc through a telescopic rod; as well as a brake mechanism and a limit mechanism. The present invention can reduce the wear on the brake surface of the disc body, brake pad 1 and brake pad 2, save the use of resources, and extend the service life of components.

Description

Technical Field

[0001] The invention relates to the technical field of speed increaser boxes, in particular to a speed increaser box for tidal power generation with brake cooling and heat dissipation functions. Background Art

[0002] Tidal power generation is a type of hydroelectric power generation. In a bay or tidal inlet with suitable conditions, dams, gates and powerhouses are built to form a reservoir. A certain tidal difference (i.e. working head) is formed between the reservoir water level and the offshore tide level, which converts the kinetic energy of the waves into electrical energy, thereby driving a hydro-turbine generator set to generate electricity.

[0003] The speed increaser for tidal power generation includes an output shaft, an input shaft and a speed increaser body. The power source is connected to the speed increaser body through the input shaft, thereby driving the input shaft to rotate at a low speed. The main operating principle of the speed increaser body is to transfer mechanical energy through gears of different radii, so as to drive the output shaft to rotate at a speed greater than the input shaft, thereby achieving speed increase. After a long period of rotation, the surface temperature of the input and output shafts will increase. If the components are operated under high temperature, the service life of the components will be shortened, and they need to be cooled in time.

[0004] In the prior art, a pump body is often used to spray water onto the shaft at a fixed time. This method requires the pump body to be provided with electric energy to be completed, resulting in a large amount of energy consumption in the cooling process. For operational needs, after receiving a shutdown command, it is necessary to stop transmitting power to the input shaft and control the input shaft to stop rotating in the shortest possible time. The prior art directly uses a resistance block to contact the input shaft, and increases the friction between the resistance block and the output shaft by squeezing the resistance block until the output shaft stops rotating. However, the greater the friction, the greater the wear on the resistance block, resulting in an increase in the wear rate of the resistance block and a decrease in the service life of the resistance block. Summary of the invention

[0005] The object of the present invention is to provide a tidal power generation speed increasing gearbox with brake cooling and heat dissipation functions to solve the existing problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a speed increasing box for tidal power generation with brake cooling and heat dissipation function, comprising a box body and a speed increasing device body arranged inside the box body, the speed increasing device body comprising an output shaft and an input shaft, a power rod is fixedly provided on the outer wall of the output shaft, and a storage box and a bracket are fixedly provided on the side wall of the box body;

[0007] and a feeding piece and a discharging piece, wherein the feeding piece is located at the top of the storage box, the top end of the feeding piece extends to the top of the box body, the discharging piece is fixedly located at the top end of the feeding piece, an extrusion piece is fixedly provided on the inner wall of the bracket, the power rod extrude the extrusion piece, and one end of the extrusion piece away from the power rod is connected to the discharging piece;

[0008] A brake disc is fixedly arranged on the outer wall of the input shaft, a support frame 1 is fixedly arranged on the outer wall of the box body, an electric push rod is arranged on the support frame 1, the electric push rod comprises a telescopic rod and a housing, a brake pad 1 and a brake pad 2 are arranged side by side on the outer wall of the telescopic rod, and the electric push rod drives the brake pad 1 to approach the brake disc through the telescopic rod;

[0009] As well as a braking mechanism and a limiting mechanism, the support frame 1 pushes the brake pad 2 towards the brake disc through the braking mechanism, and the support frame 1 limits the moving trajectory of the brake pad 2 through the limiting mechanism; the outer walls of the brake pad 1 and the brake pad 2 are both provided with a locking mechanism, and the brake pad 1 and the brake pad 2 perform secondary braking on the brake disc through the locking mechanism.

[0010] The discharge piece includes an arc segment e and a nozzle, the arc segment e is located at one end of the discharge piece close to the feeding piece, the nozzle is located at one end of the discharge piece away from the feeding piece, and the extrusion piece is connected to the arc segment e.

[0011] The storage box includes an oil collecting trough, and the feeding parts include oil supply pipe 1, oil supply pipe 2, a support plate, spring 1 and a glass ball. The top of the storage box is fixedly provided with oil supply pipe 1, the bottom end of the oil supply pipe 1 is fixedly provided with oil supply pipe 2, the oil supply pipe 2 extends into the oil collecting trough, the bottom end of the oil supply pipe 1 is provided with a funnel section f, the inside of the oil supply pipe 1 is fixedly provided with a support plate, and the bottom end of the support plate is connected to the glass ball through spring 1.

[0012] The funnel section f includes an opening section and a closing section g fixedly connected from top to bottom. When the feeding piece is in an on state, the glass ball is located above the closing section g. When the feeding piece is in a closed state, the glass ball contacts the closing section g, and the glass ball blocks the closing section g.

[0013] The extrusion piece includes an extrusion cylinder, a second spring and a slider. The inner wall of the bracket is fixedly provided with an extrusion cylinder. A second spring is provided at one end of the extrusion cylinder close to the arc segment e. A slider is provided at a section of the second spring away from the arc segment e. The slider is slidably connected to the inner wall of the extrusion cylinder. An inclined power surface h is provided at the end of the slider away from the arc segment e. The power rod pushes the slider to slide in the extrusion cylinder through the power surface h.

[0014] The limiting mechanism includes a support frame 2, a limiting rod and a spring 3. The outer wall of the support frame 1 is fixedly provided with a support frame 2, the side wall of the support frame 2 is fixedly provided with a limiting rod and a spring 3, the inner wall of the brake pad 2 is slidably connected to the limiting rod, and the end of the spring 3 is fixedly connected to the brake pad 2.

[0015] The brake mechanism includes a rotating seat, a connecting rod, an L-shaped push rod and a spring four. The side wall of the support frame one is fixedly provided with a rotating seat, the end of the rotating seat is rotatably connected with a connecting rod, the side wall of the shell is fixedly provided with an L-shaped push rod and a spring four, the end of the spring four is fixedly connected with the connecting rod, and the electric push rod drives the L-shaped push rod to push the connecting rod to rotate by contraction;

[0016] The connecting rod includes a short end a and a long end b, the end of the spring four is fixedly connected to the short end a, the connecting rod pushes the brake pad two toward the brake disc through the long end b, and the L-shaped push rod pushes the connecting rod to rotate through the short end a.

[0017] The brake disc comprises a disc body, a first positioning groove and a second positioning groove. The inner wall of one side of the disc body is provided with the first positioning groove, and the inner wall of the other side of the second positioning groove is provided with the second positioning groove. The first positioning groove and the second positioning groove are centrally symmetrical. The first positioning groove and the second positioning groove both comprise a straight groove and an oblique groove.

[0018] The locking mechanism comprises a motor and a rotating rod. The outer walls of the first brake pad and the second brake pad are both provided with a motor, and the output shaft of the motor is fixedly provided with a rotating rod.

[0019] The rotating rod comprises a rotating end c and a positioning end d, wherein one of the positioning ends d is used to position the brake disc via positioning groove one, and the other positioning end d is used to position the brake disc via positioning groove two.

[0020] The brake pad 1 and the brake pad 2 are respectively located on both sides of the brake disc, the brake pad 1 is fixedly connected to the telescopic rod, and the brake pad 2 is slidably connected to the telescopic rod.

[0021] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0022] The present invention converts the mechanical energy generated during the rotation of the input shaft into the power of liquid sprayed from the storage tank through the nozzle, and can evenly spray the liquid to cool the input shaft during the rotation of the input shaft, and there is no need to use a delivery pump to continuously spray the input shaft for cooling, thereby saving the use of resources and extending the service life of the input shaft; because the first positioning groove and the second positioning groove are centrally symmetrical, the two rotating rods can position the disc body from two opposite directions, and the braking process of the input shaft is divided into two times, and the electric push rod simultaneously controls the brake pads 1 and 2 to move in opposite directions, and the brake disc is braked for the first time. During the first braking process, brake pads 1 and 2 are not used to brake the brake disc with maximum force, reducing the friction between brake pads 1, 2 and the brake disc, thereby reducing the wear on components. After the rotation speed of the input shaft is reduced to a preset value, the brake disc is braked for a second time. During the second braking process, the rotating rod directly contacts the straight groove and the oblique groove instead of directly contacting the brake surface of the disc body. The surface of the disc body that directly contacts brake pads 1 and 2 is the brake surface, which can reduce the wear on the brake surface of the disc body, brake pads 1 and 2, and extend the service life of components. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0024] Figure 1 is a stereogram of the present invention;

[0025] Figure 2 is a front cross-sectional view of the present invention;

[0026] Figure 3 The present invention Figure 2 A partial enlarged view of the middle A;

[0027] Figure 4 The present invention Figure 2 A partial enlarged view of point B in the middle;

[0028] Figure 5 is a three-dimensional diagram of the brake disc of the present invention;

[0029] Figure 6 is a three-dimensional diagram of a support frame 1 in the present invention;

[0030] Figure 7 is a top cross-sectional view of the brake disc of the present invention;

[0031] Figure 8 is a three-dimensional diagram of a connecting rod in the present invention;

[0032] In the figure: 1, box body; 2, input shaft; 3, power rod; 4, storage box; 5, discharging part; 6, feeding part; 7, extrusion part; 8, limit mechanism; 9, brake mechanism; 10, brake disc; 11, support frame 1; 12, electric push rod; 13, telescopic rod; 14, housing; 15, brake pad 1; 16, brake pad 2; 17, oil collecting tank; 18, motor; 19, rotating rod;

[0033] 60. Oil supply pipe 1; 61. Oil supply pipe 2; 62. Support plate; 63. Spring 1; 64. Glass ball;

[0034] 70. Extrusion cylinder; 71. Spring 2; 72. Slider;

[0035] 80. Support frame 2; 81. Limit rod; 82. Spring 3;

[0036] 90, rotating seat; 91, connecting rod; 92, L-shaped push rod; 93, spring four;

[0037] 101. disk body; 102. positioning groove 1; 103. positioning groove 2; 104. straight groove; 105. oblique groove. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figure 1-Figure 2 The present invention provides a technical solution: a tidal power generation speed increasing box with brake cooling and heat dissipation function, comprising a box body 1 and a speed increasing device body arranged inside the box body 1, the speed increasing device body comprising an output shaft and an input shaft 2, a power rod 3 is fixedly arranged on the outer wall of the output shaft, and a storage box 4 and a bracket are fixedly arranged on the side wall of the box body 1;

[0040] And a feeding piece 6 and a discharging piece 5, wherein the feeding piece 6 is located at the top of the storage box 4, the top end of the feeding piece 6 extends to the top of the box body 1, and the discharging piece 5 is fixedly located at the top of the feeding piece 6, and an extrusion piece 7 is fixedly arranged on the inner wall of the bracket, and the power rod 3 extrude the extrusion piece 7, and the end of the extrusion piece 7 away from the power rod 3 is connected with the discharging piece 5; the storage box 4 is filled with a liquid that can cool down, and the slider 72 will slide along the inner wall of the extrusion cylinder 70 into the extrusion cylinder 70, and the slider 72 squeezes the spring 2 71. After the slider 72 is separated from the power rod 3, the slider 72 loses its thrust, and the spring 2 71 drives the slider 72 to slide in the opposite direction and reset under the action of its own elastic force. In this process The air will quickly enter the extrusion cylinder 70, because the greater the fluid speed, the water will automatically flow from high pressure to low pressure, so the air near the nozzle will flow quickly at this time, and the pressure will decrease; however, the air pressure inside the storage box 4 will increase, so that the water in the storage box 4 will push the glass ball 64 upward under the action of high pressure, the spring 1 63 is squeezed, the glass ball 64 moves to the top of the closing section g, and the upper opening of the closing section g is opened; the liquid in the storage box 4 enters the oil supply pipe 2 61 from the lower mouth of the oil supply pipe 2 61 under the action of high pressure, and then enters the oil supply pipe 1 60 through the closing section g, moves forward along the oil supply pipe 1 60 and the discharge piece 5, and moves to the arc section e, preparing for the subsequent liquid to be sprayed out from the nozzle.

[0041] Figure 5 A brake disc 10 is fixedly provided on the outer wall of the input shaft 2, a support frame 11 is fixedly provided on the outer wall of the box body 1, an electric push rod 12 is provided on the support frame 11, the electric push rod 12 includes a telescopic rod 13 and a housing 14, a brake pad 15 and a brake pad 2 16 are arranged side by side on the outer wall of the telescopic rod 13, and the electric push rod 12 drives the brake pad 15 to approach the brake disc 10 through the telescopic rod 13;

[0042] As well as a brake mechanism 9 and a limiting mechanism 8, the support frame 11 pushes the brake pad 2 16 towards the brake disc 10 through the brake mechanism 9, and the support frame 11 limits the moving trajectory of the brake pad 2 16 through the limiting mechanism 8; the outer walls of the brake pad 15 and the brake pad 2 16 are both provided with a locking mechanism, and the brake pad 15 and the brake pad 2 16 perform secondary braking on the brake disc 10 through the locking mechanism.

[0043] The discharge piece 5 includes an arc segment e and a nozzle. The arc segment e is located at one end of the discharge piece 5 close to the feeding piece 6. The nozzle is located at one end of the discharge piece 5 away from the feeding piece 6. The extrusion piece 7 is connected to the arc segment e.

[0044] Figure 3The storage box 4 includes an oil collecting groove 17, and the feeding member 6 includes an oil supply pipe 60, an oil supply pipe 61, a support plate 62, a spring 63 and a glass ball 64. The top of the storage box 4 is fixedly provided with an oil supply pipe 60, the bottom end of the oil supply pipe 60 is fixedly provided with an oil supply pipe 61, the oil supply pipe 61 extends into the oil collecting groove 17, the bottom end of the oil supply pipe 60 is provided with a funnel section f, the inside of the oil supply pipe 60 is fixedly provided with a support plate 62, and the bottom end of the support plate 62 is connected to the glass ball 64 through a spring 63.

[0045] The funnel section f includes an opening section and a closing section g fixedly connected from top to bottom. When the feeding piece 6 is in an on state, the glass ball 64 is located above the closing section g. When the feeding piece 6 is in a closed state, the glass ball 64 contacts the closing section g, and the glass ball 64 blocks the closing section g.

[0046] Figure 4 The extrusion member 7 includes an extrusion cylinder 70, a spring 71 and a slider 72. The inner wall of the bracket is fixedly provided with an extrusion cylinder 70. A spring 71 is provided at one end of the extrusion cylinder 70 close to the arc segment e. A slider 72 is provided at a section of the spring 71 away from the arc segment e. The slider 72 is slidably connected to the inner wall of the extrusion cylinder 70. An inclined power surface h is provided at the end of the slider 72 away from the arc segment e. The power rod 3 pushes the slider 72 to slide in the extrusion cylinder 70 through the power surface h.

[0047] Figure 6 The limiting mechanism 8 includes a support frame 80, a limiting rod 81 and a spring 82. The outer wall of the support frame 11 is fixedly provided with the support frame 80, and the side wall of the support frame 80 is fixedly provided with a limiting rod 81 and a spring 3 82. The inner wall of the brake pad 2 16 is slidably connected to the limiting rod 81, and the end of the spring 3 82 is fixedly connected to the brake pad 2 16.

[0048] Figure 7 and Figure 8 The brake mechanism 9 includes a rotating seat 90, a connecting rod 91, an L-shaped push rod 92 and a spring 93. The side wall of the support frame 11 is fixed with a rotating seat 90, and the end of the rotating seat 90 is rotatably connected to the connecting rod 91. The side wall of the shell 14 is fixed with an L-shaped push rod 92 and a spring 93. The end of the spring 93 is fixedly connected to the connecting rod 91. The electric push rod 12 drives the L-shaped push rod 92 to push the connecting rod 91 to rotate by contraction;

[0049] The connecting rod 91 includes a short end a and a long end b, and the end of the spring four 93 is fixedly connected to the short end a. The connecting rod 91 pushes the brake pad two 16 to approach the brake disc 10 through the long end b, and the L-shaped push rod 92 pushes the connecting rod 91 to rotate through the short end a.

[0050] The brake disc 10 comprises a disc body 101, a positioning groove 102 and a positioning groove 2 103. The inner wall of one side of the disc body 101 is provided with a positioning groove 102, and the inner wall of the other side of the positioning groove 103 is provided with a positioning groove 2 103. The positioning groove 102 and the positioning groove 2 103 are centrally symmetrical. The positioning groove 102 and the positioning groove 2 103 both comprise a straight groove 104 and an oblique groove 105.

[0051] The locking mechanism includes a motor 18 and a rotating rod 19 . The outer walls of the brake pad 15 and the brake pad 2 16 are both provided with a motor 18 , and the rotating rod 19 is fixedly provided on the output shaft of the motor 18 .

[0052] The rotating rod 19 includes a rotating end c and a positioning end d, wherein one of the positioning ends d positions the brake disc 10 through a positioning groove 102 , and the other positioning end d positions the brake disc 10 through a positioning groove 2 103 .

[0053] The brake pad 1 15 and the brake pad 2 16 are respectively located on both sides of the brake disc 10 , the brake pad 15 is fixedly connected to the telescopic rod 13 , and the brake pad 2 16 is slidably connected to the telescopic rod 13 .

[0054] The specific implementation is as follows: when in use, the storage box 4 is filled with a cooling liquid, which can be cooling oil or cooling water. The output shaft and input shaft 2 of the speed increasing device body are respectively connected to the external device, and the input shaft 2 rotates counterclockwise. During the rotation of the input shaft 2, the power rod 3 is driven to rotate. After the power rod 3 contacts the power surface h, it pushes the slider 72. Because the slider 72 is inclined, the slider 72 slides along the inner wall of the extrusion cylinder 70 into the extrusion cylinder 70. The slider 72 squeezes the spring 71. After the slider 72 is separated from the power rod 3, the slider 72 loses its thrust. The spring 71 drives the slider 72 to slide in the opposite direction and reset under the action of its own elastic force. In this process, During the process, the air will quickly enter the extrusion cylinder 70, because the greater the fluid speed, the water will automatically flow from high pressure to low pressure, so the air near the nozzle will flow quickly at this time, and then the pressure will decrease; however, the air pressure inside the storage box 4 will increase, so that the water in the storage box 4 will push the glass ball 64 upward under the action of the high pressure, the spring 1 63 is squeezed, the glass ball 64 moves to the top of the closing section g, and the upper opening of the closing section g is opened; the liquid in the storage box 4 enters the oil supply pipe 2 61 from the lower opening of the oil supply pipe 2 61 under the action of high pressure, and then enters the oil supply pipe 1 60 through the closing section g, moves forward along the oil supply pipe 1 60 and the discharge piece 5, and moves to the arc section e;

[0055] After the next power rod 3 contacts the slider 72, it pushes the slider 72 into the extrusion cylinder 70 again. The slider 72 squeezes the air in the extrusion cylinder 70 outward, and the air is divided into two parts and flows in two directions. The airflow in the first direction flows forward along the oil supply pipe 1 60, and the airflow in the second direction flows forward along the discharge piece 5. The water flow is affected by the impact of the airflow. In the first direction, the glass ball 64 falls down and resets, closing the upper opening of the closing section g. In the second direction, the airflow drives the water flow of the arc section e to be sprayed outward from the nozzle, spraying to the outer wall of the brake disc 10, the input shaft 2, the brake pad 1 15 and the brake pad 2 16, thereby cooling the brake disc 10 and the input shaft 2. The larger the volume and internal capacity of the storage box 4, the longer the liquid can be continuously sprayed to the outside. The volume and internal capacity of the storage box 4 can be selected according to needs, but it is necessary to ensure that the oil supply pipe 2 61 extends into the oil collection groove 17, so as to ensure that the oil supply pipe 2 61 extends into the liquid and ensure the subsequent smooth oil supply. The mechanical energy generated during the rotation of the input shaft 2 is converted into the power of liquid sprayed from the storage tank 4 from the nozzle. The liquid can be evenly sprayed during the rotation of the input shaft 2 to cool the input shaft 2, and there is no need to use a delivery pump to continuously spray and cool the input shaft 2, which saves the use of resources and extends the service life of the input shaft 2.

[0056] When the power transmission to the input shaft 2 stops and the input shaft 2 needs to be stopped quickly, the telescopic rod 13 of the electric push rod 12 contracts and drives the brake pad 15 to move closer to the brake disc 10; the telescopic rod 13 drives the L-shaped push rod 92 to push the short end a of the connecting rod 91, and the connecting rod 91 rotates under the support of the rotating seat 90, and the long end b pushes the brake pad 2 16, so that the brake pad 2 16 moves closer to the brake disc 10. The approach distance value and force are preset by the program, but the distance value and force are not enough to stop the rotation of the input shaft 2 completely, which will reduce the rotation speed of the input shaft 2. After being lowered to the preset value, the motor 18 drives the rotating rod 19 to rotate, and the rotating rod 19 on one side enters into the positioning groove 102, and the rotating rod 19 on the other side enters into the positioning groove 2 103. During the rotation of the rotating rod 19, the positioning end d of the rotating rod 19 slides through the inclined groove 105 and enters into the straight groove 104. Because the positioning groove 102 and the positioning groove 2 103 are centrally symmetrical, the two rotating rods 19 can position the disk body 101 from two opposite directions. The rotating rod 19 limits the position of the disk body 101 through the straight groove 104, thereby positioning the input shaft 2. The braking process of the input shaft 2 is divided into two steps. The electric push rod 12 is used to simultaneously control the brake pad 15 and the brake pad 2 16 to move in opposite directions, and the brake disc 10 is braked for the first time. During the first braking process, the brake pad 15 and the brake pad 2 16 are not used to brake the brake disc 10 with the maximum force, thereby reducing the friction between the brake pad 15, the brake pad 2 16 and the brake disc 10, thereby reducing the wear on the components. After the rotation speed of the input shaft 2 is reduced to a preset value, the brake disc 10 is braked for the second time. During the second braking process, the rotating rod 19 directly contacts the straight groove 104 and the inclined groove 105, but does not directly contact the braking surface of the disc body 101. The surface of the disc body 101 that directly contacts the brake pad 15 and the brake pad 2 16 is the braking surface, which can reduce the wear on the braking surface of the disc body 101, the brake pad 15 and the brake pad 2 16, and extend the service life of the components.

[0057] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tidal power generation speed increaser with brake cooling and heat dissipation function, characterized in that: It comprises a box body (1) and a speed increasing device body arranged inside the box body (1), the speed increasing device body comprising an output shaft and an input shaft (2), a power rod (3) is fixedly provided on the outer wall of the output shaft, and a storage box (4) and a bracket are fixedly provided on the side wall of the box body (1); and a feeding member (6) and a discharging member (5), wherein the feeding member (6) is located at the top of the storage box (4), the top end of the feeding member (6) extends above the box body (1), the discharging member (5) is fixedly located at the top end of the feeding member (6), an extrusion member (7) is fixedly provided on the inner wall of the bracket, the power rod (3) extrude the extrusion member (7), and the end of the extrusion member (7) away from the power rod (3) is connected to the discharging member (5); A brake disc (10) is fixedly provided on the outer wall of the input shaft (2); a support frame 1 (11) is fixedly provided on the outer wall of the box body (1); an electric push rod (12) is provided on the support frame 1 (11); the electric push rod (12) comprises a telescopic rod (13) and a housing (14); a brake pad 1 (15) and a brake pad 2 (16) are arranged side by side on the outer wall of the telescopic rod (13); the electric push rod (12) drives the brake pad 1 (15) to approach the brake disc (10) via the telescopic rod (13); and a brake mechanism (9) and a limit mechanism (8), wherein the support frame 1 (11) pushes the brake pad 2 (16) toward the brake disc (10) through the brake mechanism (9), and the support frame 1 (11) limits the movement trajectory of the brake pad 2 (16) through the limit mechanism (8); the outer walls of the brake pad 1 (15) and the brake pad 2 (16) are both provided with a locking mechanism, and the brake pad 1 (15) and the brake pad 2 (16) perform secondary braking on the brake disc (10) through the locking mechanism; The brake mechanism (9) comprises a rotating seat (90), a connecting rod (91), an L-shaped push rod (92) and a spring four (93); the rotating seat (90) is fixedly provided on the side wall of the support frame one (11); the end of the rotating seat (90) is rotatably connected to the connecting rod (91); the side wall of the shell (14) is fixedly provided with an L-shaped push rod (92) and a spring four (93); the end of the spring four (93) is fixedly connected to the connecting rod (91); the electric push rod (12) drives the L-shaped push rod (92) to push the connecting rod (91) to rotate by contraction; The connecting rod (91) comprises a short end a and a long end b, the end of the spring four (93) is fixedly connected to the short end a, the connecting rod (91) pushes the brake pad two (16) toward the brake disc (10) through the long end b, and the L-shaped push rod (92) pushes the connecting rod (91) to rotate through the short end a; The brake disc (10) comprises a disc body (101), a first positioning groove (102) and a second positioning groove (103); the inner wall of one side of the disc body (101) is provided with the first positioning groove (102); the inner wall of the other side of the second positioning groove (103) is provided with the second positioning groove (103); the first positioning groove (102) and the second positioning groove (103) are centrally symmetrical; the first positioning groove (102) and the second positioning groove (103) both comprise a straight groove (104) and an oblique groove (105); The locking mechanism comprises a motor (18) and a rotating rod (19); the outer walls of the first brake pad (15) and the second brake pad (16) are both provided with a motor (18); and the output shaft of the motor (18) is fixedly provided with a rotating rod (19); The rotating rod (19) comprises a rotating end c and a positioning end d, wherein one of the positioning ends d positions the brake disc (10) via a first positioning groove (102), and the other positioning end d positions the brake disc (10) via a second positioning groove (103).

2. The tidal power generation speed increasing gearbox with brake cooling and heat dissipation function according to claim 1 is characterized in that: The discharge member (5) comprises an arc segment e and a nozzle, the arc segment e is located at one end of the discharge member (5) close to the feeding member (6), the nozzle is located at one end of the discharge member (5) away from the feeding member (6), and the extrusion member (7) is connected to the arc segment e.

3. The tidal power generation speed increasing gearbox with brake cooling and heat dissipation function according to claim 1 is characterized in that: The storage box (4) comprises an oil collecting groove (17), and the feeding member (6) comprises an oil supply pipe 1 (60), an oil supply pipe 2 (61), a support plate (62), a spring 1 (63) and a glass ball (64). The top of the storage box (4) is fixedly provided with an oil supply pipe 1 (60), the bottom end of the oil supply pipe 1 (60) is fixedly provided with an oil supply pipe 2 (61), the oil supply pipe 2 (61) extends into the oil collecting groove (17), the bottom end of the oil supply pipe 1 (60) is provided with a funnel section f, the inside of the oil supply pipe 1 (60) is fixedly provided with a support plate (62), and the bottom end of the support plate (62) is connected to the glass ball (64) via a spring 1 (63).

4. The tidal power generation speed increasing gearbox with brake cooling and heat dissipation function according to claim 3 is characterized in that: The funnel section f comprises an opening section and a closing section g which are fixedly connected from top to bottom; when the feeding member (6) is in an on state, the glass ball (64) is located above the closing section g; when the feeding member (6) is in a closed state, the glass ball (64) is in contact with the closing section g, and the glass ball (64) blocks the closing section g.

5. The tidal power generation speed increasing gearbox with brake cooling and heat dissipation function according to claim 2 is characterized in that: The extrusion member (7) comprises an extrusion cylinder (70), a second spring (71) and a slider (72); the inner wall of the bracket is fixedly provided with the extrusion cylinder (70); the inner end of the extrusion cylinder (70) close to the arc segment e is provided with a second spring (71); a section of the second spring (71) away from the arc segment e is provided with a slider (72); the slider (72) is slidably connected to the inner wall of the extrusion cylinder (70); the end of the slider (72) away from the arc segment e is provided with an inclined power surface h; the power rod (3) pushes the slider (72) to slide in the extrusion cylinder (70) via the power surface h.

6. The tidal power generation speed increasing gearbox with brake cooling and heat dissipation function according to claim 1, characterized in that: The limiting mechanism (8) comprises a support frame 2 (80), a limiting rod (81) and a spring 3 (82); the outer wall of the support frame 1 (11) is fixedly provided with the support frame 2 (80); the side wall of the support frame 2 (80) is fixedly provided with the limiting rod (81) and the spring 3 (82); the inner wall of the brake pad 2 (16) is slidably connected to the limiting rod (81); and the end of the spring 3 (82) is fixedly connected to the brake pad 2 (16).

7. The tidal power generation speed increasing gearbox with brake cooling and heat dissipation function according to claim 1, characterized in that: The brake pad 1 (15) and the brake pad 2 (16) are respectively located on two sides of the brake disc (10); the brake pad 1 (15) is fixedly connected to the telescopic rod (13); and the brake pad 2 (16) is slidably connected to the telescopic rod (13).

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