Automatic deceleration braking device of hydro-generator
By designing an automatic reduction braking device including elastic support assembly, tensioning assembly, locking assembly and release assembly, the problem of traditional braking methods that brake too fast and operating hazards on the flywheel of the hydrowheel generator is solved, and the problem of high speed and risk of operation of the hydraulic turbine generator is achieved. Safe and effective braking effect.
Patent Information
- Application Number
- CN202420564525.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-21
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-03-21
AI Technical Summary
The traditional braking method brakes the flywheel of the hydrowheel generator too quickly, which can easily cause damage, and it is highly dangerous for workers to use wooden blocks to brake.
An automatic speed reduction braking device is designed, including an upper frame, a lower frame, a brake pad, an elastic support assembly, a tensioning assembly, a locking assembly and a release assembly. Through the cooperation of these components, the brake pad and the hydrowheel generate electricity. The flexible contact and separation of the flywheel of the machine realizes the braking and release of the braking.
The device reduces damage to the flywheel through flexible brakes and improves operating safety through automatic and manual release components, achieving a safe and effective braking process.
Smart Images
Figure CN222479297U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of brakes, in particular to an automatic deceleration braking device for a water turbine generator. Background Art
[0002] A hydro-turbine generator is an environmentally friendly power generation device that uses the kinetic energy of water flow to drive a water wheel to rotate, and is connected to a generator through the water wheel to convert mechanical energy into kinetic energy.
[0003] When the turbine generator is under maintenance or stopped working, it is necessary to brake it to stop rotating. The traditional braking method is used to brake the turbine generator. Because the flywheel in the turbine generator rotates too fast and the rapid braking of the braking device will damage the flywheel or the water wheel, workers will put wooden blocks in the gap between the flywheel and the ground to brake slowly during the actual braking operation. However, this operation is very dangerous. Therefore, the turbine generator braking requires a braking device that can brake slowly and is safe to use. Utility Model Content
[0004] The purpose of the utility model is to solve the problems of the traditional brake being too fast and causing damage to the flywheel and the high risk of personnel using wooden blocks for braking.
[0005] The utility model provides an automatic deceleration brake device for a hydro-turbine generator, comprising an upper frame and a lower frame, one end of the upper frame and the lower frame are arranged to rotate and cross, and a brake pad is arranged on the upper surface of the upper frame; it also comprises an elastic support component for supporting the brake pad to perform a braking action, the elastic support component is connected between the upper frame and the lower frame, so that the upper frame is inclined and arranged at the end of the lower frame; it also comprises a tensioning component for pulling down the brake pad to release the braking action, the tensioning component is arranged on the lower frame and elastically connected to the upper frame, and it also comprises a locking component and a releasing component, the locking component locks the tensioning component to end the tensioning action, and the releasing component releases the tensioning component to rebound, so that the brake pad rebounds to the braking position. When the tensioning component is tightened, the brake is released, and when the releasing component releases the tensioning component, the angle between the upper frame and the lower frame becomes larger, and braking is performed.
[0006] Preferably, the elastic support assembly includes a support spring, a support rod and an adjusting bolt, one end of the support spring is connected to the upper frame, and the other end of the support spring is connected to the adjusting bolt; one end of the support rod is connected to the lower frame, and the other end of the support rod is connected to the adjusting bolt. The tensioning assembly includes a separation spring, a pull rod, a ratchet, a central shaft, a cam and an energy storage spring, the centers of the ratchet and the cam are both located on the central shaft, one end of the separation spring is connected to the upper frame, the other end of the separation spring is connected to the protruding shaft of the cam, the cam is used to stretch the separation spring, the pull rod is vertically arranged on the central shaft, the energy storage spring is arranged around the central shaft, one end of the energy storage spring is fixed to the central shaft, and the other end of the energy storage spring is fixed to the lower frame. The elastic support assembly is used for braking, and the tensioning assembly is used to release braking.
[0007] Preferably, the locking assembly includes a pawl, a telescopic spring, a block and a slot, the block is fixedly connected to one side of the ratchet, the slot is fixedly connected to the lower frame, the pawl is arranged in a groove on the lower frame, the two ends of the telescopic spring are respectively connected to the bottom of the pawl and the bottom of the groove, and the pawl and the block respectively lock the two directions of rotation of the ratchet.
[0008] Preferably, the release assembly includes a manual brake lever, which is rotatably fixed on the lower frame, and one end of the manual brake lever contacts the ratchet. The release assembly also includes an energy release electromagnetic coil and a controller, the energy release electromagnetic coil is electrically connected to the controller, and the energy release electromagnetic coil is magnetically connected to the manual brake lever.
[0009] Preferably, a water spray device is further included, and the water outlet of the water spray device is located above the brake pad. The water spray device includes a water pipe and a switch valve, the water pipe has an opening above the brake pad, and the switch valve is fixedly connected to an extension handle, the extension handle is in contact with one end of the separation spring close to the lower frame, and the extension handle is pulled by the separation spring to trigger the switch valve to open.
[0010] Preferably, the upper frame is provided with a threaded hole, and a threaded rod is provided in cooperation with the threaded hole, and the end of the threaded rod abuts against the brake pad.
[0011] Compared with the prior art, it has the following beneficial effects:
[0012] The utility model provides an automatic deceleration braking device for a hydro-turbine generator. The contact and separation between the brake pad and the flywheel of the hydro-turbine generator are adjusted by arranging an elastic support component and a tensioning component to achieve braking and releasing the brake. The locking component is used to lock the tensioning component and end the tensioning action. The release component releases the tensioning component to rebound and brake. The release component includes two modes: automatic release and manual release. With the above technical solution, the brake pad is supported by the elastic support component to achieve flexible braking, reduce damage to the flywheel of the hydro-turbine generator, and brake is performed through the release component. The release component is divided into two modes: manual and automatic, which improves the safety of operators during braking. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.
[0014] Figure 1 It is a schematic diagram of an automatic deceleration braking device of a hydro-generator according to the utility model;
[0015] Figure 2 It is a schematic diagram of an automatic deceleration braking device of a hydro-generator according to the utility model;
[0016] Figure 3 It is a schematic diagram of a brake release module of an automatic deceleration brake device of a hydro-generator according to the utility model;
[0017] Figure 4 It is a schematic diagram of a tensioning and locking member and a releasing member of an automatic deceleration and braking device of a hydro-generator according to the utility model;
[0018] Figure 5 It is a schematic diagram of the process flow of an automatic braking device of an automatic deceleration braking device of a hydro-generator according to the utility model;
[0019] Figure 6 This is a schematic diagram of the connection between the cam and the separation spring of an automatic deceleration brake device of a hydro-generator of the utility model;
[0020] In the figure, 1-upper frame; 2-lower frame; 3-brake pad; 4-elastic support assembly; 41-support spring; 42-support rod; 43-adjusting bolt; 5-tensioning assembly; 51-separation spring; 52-pull rod; 53-ratchet; 54-center axis; 55-cam; 56-energy storage spring; 6-locking assembly; 61-ratchet; 62-telescopic spring; 63-block; 64-slot; 7-release assembly; 71-manual brake lever; 72-energy release electromagnetic coil; 73-controller; 8-water spray device; 81-water pipe; 82-switch valve; 83-extension handle; 9-threaded hole; 10-threaded rod. DETAILED DESCRIPTION
[0021] In order to make it easier to understand the structure of the present invention and the functional features and advantages that can be achieved, the preferred embodiments of the present invention are described in detail with reference to the drawings as follows:
[0022] Example:
[0023] like Figures 1 to 5As shown, the utility model provides an automatic deceleration brake device for a hydro-turbine generator, comprising an upper frame 1 and a lower frame 2, one end of the upper frame 1 and the lower frame 2 are rotated and cross-arranged, and a brake pad 3 is arranged on the upper surface of the upper frame 1; it also includes an elastic support component 4 for supporting the brake pad 3 for braking action, the elastic support component 4 is connected between the upper frame 1 and the lower frame 2, so that the upper frame 1 is tilted and arranged at the end of the lower frame 2; it also includes a tensioning component 5 for pulling down the brake pad 3 to release the braking action, the tensioning component 5 is arranged on the lower frame 2 and elastically connected to the upper frame 1, and also includes a locking component 6 and a releasing component 7, the locking component 6 locks the tensioning component 5 to end the tensioning action, and the releasing component 7 releases the tensioning component 5 to rebound, so that the brake pad 3 rebounds to the braking position. The upper frame 1 is provided with a threaded hole 9, and the threaded hole 9 is matched with a threaded rod 10, and the end of the threaded rod 10 abuts against the brake pad 3.
[0024] The brake pad 3 is preferably a hardwood block in this application. The brake pad 3 is located on the upper surface of the upper frame 1 and is framed by the upper frame 1. The brake pad 3 can be replaced. When braking, the elastic support component 4 supports the upper frame 1. The brake pad 3 on the upper frame 1 rubs against the flywheel of the hydro-turbine generator to achieve braking. Since the elastic support component 4 has a certain elasticity, the flywheel will not stop immediately when rubbing against the brake pad 3, but will gradually slow down, which plays a protective role for the flywheel. The elastic support component 4 has a certain hardness and will not jump violently when rubbing against the flywheel. When the brake needs to be released, the tensioning component 5 is pulled, and the angle between the upper frame 1 and the upper frame 2 becomes smaller, thereby driving the brake pad 3 to be out of contact with the flywheel, that is, the brake is released. In order to prevent the tensioning component 5 from rebounding when the tensioning component 5 is released, a locking component 6 is set. Since the locking component 6 tightens the tensioning component 5, a release component 7 is set to release the locking component 6 and release the tensioning component 5 to achieve braking again. In this way, the braking and brake release actions are realized in a cycle. The threaded rod 10 passes through the threaded hole 9 and abuts against the brake pad 3. The angle of the brake pad 3 can be raised by twisting the threaded rod 10. After multiple braking, the brake pad 3 is worn and needs to be raised to a certain angle to contact the flywheel.
[0025] As another example, Figure 1 As shown, the elastic support assembly 4 of the present application includes a support spring 41, a support rod 42 and an adjusting bolt 43. One end of the support spring 41 is connected to the upper frame 1, and the other end of the support spring 41 is connected to the adjusting bolt 43; one end of the support rod 42 is connected to the lower frame 2, and the other end of the support rod 42 is connected to the adjusting bolt 43.
[0026] The support spring 41 is a hard spring, and the adjusting bolt 43 adjusts the angle between the support spring 41 and the support rod 42 to adjust the supporting angle of the support spring 41 to the upper frame 1 .
[0027] As another example, Figure 2 , Figure 3 and Figure 6 As shown, the tensioning assembly 5 of the present application includes a separation spring 51, a pull rod 52, a ratchet 53, a central shaft 54, a cam 55 and an energy storage spring 56. The centers of the ratchet 53 and the cam 55 are both located on the central shaft 54. One end of the separation spring 51 is connected to the upper frame 1, and the other end of the separation spring 51 is connected to the protruding shaft of the cam 55. The cam 55 is used to stretch the separation spring 51. The pull rod 52 is vertically arranged on the central shaft 54. The energy storage spring 56 is arranged around the central shaft 54. One end of the energy storage spring 56 is fixed to the central shaft 54, and the other end of the energy storage spring 56 is fixed to the lower frame 2.
[0028] The pull rod 52 is vertically fixed at one end of the central shaft 54. Pulling the pull rod 52 drives the central shaft 54 and the ratchet 53 to rotate in the rotatable direction. At the same time, the center of the cam 55 is also on the central shaft 54. The separation spring 51 is connected to the protruding part of the cam 55 through an axis. When the cam 55 rotates, the protruding part also rotates, thereby tightening the separation spring 51 and driving the upper frame 1 to pull down. The brake pad 3 is disengaged from the flywheel to release the brake. The energy storage spring 56 twists in this process to store energy.
[0029] As another example, Figure 3 and Figure 4 As shown, the locking assembly 6 of the present application includes a pawl 61, a telescopic spring 62, a block 63 and a slot 64. The block 63 is fixedly connected to one side of the ratchet 53, and the slot 64 is fixedly connected to the lower frame 2. The pawl 61 is arranged in a groove on the lower frame 2, and the two ends of the telescopic spring 62 are respectively connected to the bottom of the pawl 61 and the bottom of the groove. The pawl 61 and the block 63 respectively lock the two directions of rotation of the ratchet 53.
[0030] When the ratchet 53 rotates, the block 63 rotates accordingly. When the block 63 rotates to the slot 64, the ratchet 53 cannot continue to rotate. At this time, the pawl 61 stops the ratchet 53. The ratchet 53 is stopped in two directions, namely, the slot 64 and the pawl 61. The coordination and locking of the ratchet 53 and the pawl 61 are achieved by setting a telescopic spring 62. The pawl 61 is set in the groove of the lower frame 2 to ensure that the pawl 61 is effectively locked.
[0031] As another example, Figure 4 and Figure 5 As shown, the release assembly 7 of the present application includes a manual brake lever 71, which is rotatably fixed on the lower frame 2, and one end of the manual brake lever 71 contacts the ratchet 61. The release assembly 7 also includes an energy release electromagnetic coil 72 and a controller 73, the energy release electromagnetic coil 72 is electrically connected to the controller 73, and the energy release electromagnetic coil 72 is magnetically connected to the manual brake lever 71.
[0032] The manual brake lever 71 is a bent folding lever. When the manual brake lever 71 is pushed, the end of the manual brake lever 71 close to the pawl 61 presses the pawl 61 to release the lock on the ratchet 53. The ratchet 53 rotates rapidly during the energy release process of the energy storage spring 56. At the same time, the separation spring 51 rebounds, and the brake pad 3 on the upper frame 1 rubs against the flywheel to achieve braking. When the brake button is pressed during automatic control, the controller 73 sends a brake signal to the energy release electromagnetic coil 72. The energy release electromagnetic coil 72 changes the state of the magnetic field energy according to the control signal, and the magnetic field energy is converted into mechanical energy. The mechanical energy is transmitted to the manual brake lever 71, and the manual brake lever 71 is pushed to achieve braking.
[0033] As another example, Figure 2 As shown, the present application further includes a water spray device 8, and the water outlet of the water spray device 8 is located above the brake pad 3. The water spray device 8 includes a water pipe 81 and a switch valve 82. The water pipe 81 is provided with an opening above the brake pad 3. The switch valve 82 is fixedly connected with an extension handle 83. The extension handle 83 contacts one end of the separation spring 51 close to the lower frame 2, and the extension handle 83 is pulled by the separation spring 51 to trigger the switch valve 82 to open.
[0034] When braking is required, the separation spring 51 contracts upward, driving the extended handle 83 in contact with the separation spring 51 to move upward, thereby opening the switch valve 82, and water flows out from the opening of the water pipe 81 above the brake pad 3 and flows onto the brake pad 3. On the one hand, the toughness of the brake pad 3 is increased and the wear is reduced. On the other hand, the wooden brake pad 3 is prone to heat up or even smoke and catch fire during the high-speed friction with the flywheel, and the water can cool it down at this time.
[0035] The present application discloses an automatic deceleration braking device for a hydro-turbine generator: an elastic support component 4 supports an upper frame 1, and a brake pad 3 on the upper frame 1 rubs against a flywheel of the hydro-turbine generator to achieve braking; when braking is not needed, the tensioning component 5 is pulled, and the tensioning component 5 drives the upper frame 1 to descend, and the friction between the brake pad 3 and the flywheel is released, that is, the braking is released. During the tensioning process of the tensioning component 5, the energy storage spring 56 stores energy, and when the buckle 63 fits with the slot 64, the pawl 61 is buckled with the ratchet 53, and the tensioning component 5 stops the tensioning action; when braking is needed, the manual brake lever 71 is pushed or the brake button is pressed, and a brake command is sent through the controller 73 to achieve braking. The above method realizes the braking and brake release actions of the hydro-turbine generator.
[0036] The above are only preferred embodiments of the present invention, and do not limit the present invention in any form. Any technician familiar with the field can make many possible changes and modifications to the technical solution of the present invention by using the above technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.
Claims
1. An automatic deceleration and braking device for a hydro-generator, characterized in that The invention relates to a brake pad (3) comprising an upper frame (1) and a lower frame (2), wherein one end of the upper frame (1) and the lower frame (2) are rotatably arranged crosswise, and a brake pad (3) is arranged on the upper surface of the upper frame (1); an elastic support component (4) for supporting the brake pad (3) for braking, wherein the elastic support component (4) is connected between the upper frame (1) and the lower frame (2) so that the upper frame (1) is tiltedly arranged at the end of the lower frame (2); a tensioning component (5) for pulling down the brake pad (3) to release the braking action, wherein the tensioning component (5) is arranged on the lower frame (2) and elastically connected to the upper frame (1); and a locking component (6) and a releasing component (7), wherein the locking component (6) locks the tensioning component (5) to end the tensioning action, and the releasing component (7) releases the tensioning component (5) to rebound, so that the brake pad (3) rebounds to the braking position.
2. The automatic deceleration and braking device of a hydro-generator according to claim 1, characterized in that: The elastic support assembly (4) comprises a support spring (41), a support rod (42) and an adjusting bolt (43); one end of the support spring (41) is connected to the upper frame (1), and the other end of the support spring (41) is connected to the adjusting bolt (43); one end of the support rod (42) is connected to the lower frame (2), and the other end of the support rod (42) is connected to the adjusting bolt (43).
3. The automatic deceleration and braking device of a hydro-generator according to claim 1, characterized in that: The tensioning assembly (5) comprises a separation spring (51), a pull rod (52), a ratchet (53), a central shaft (54), a cam (55) and an energy storage spring (56); the centers of the ratchet (53) and the cam (55) are both located on the central shaft (54); one end of the separation spring (51) is connected to the upper frame (1); the other end of the separation spring (51) is connected to the protruding portion of the cam (55); the cam (55) is used to stretch the separation spring (51); the pull rod (52) is vertically arranged on the central shaft (54); the energy storage spring (56) is arranged around the central shaft (54); one end of the energy storage spring (56) is fixed to the central shaft (54); and the other end of the energy storage spring (56) is fixed to the lower frame (2).
4. The automatic deceleration and braking device of a hydro-generator according to claim 3 is characterized in that: The locking assembly (6) comprises a pawl (61), a telescopic spring (62), a clamping block (63) and a clamping slot (64); the clamping block (63) is fixedly connected to one side of the ratchet (53); the clamping slot (64) is fixedly connected to the lower frame (2); the pawl (61) is arranged in a groove on the lower frame (2); two ends of the telescopic spring (62) are respectively connected to the bottom of the pawl (61) and the bottom of the groove; the pawl (61) and the clamping block (63) respectively clamp the two directions of rotation of the ratchet (53).
5. The automatic deceleration and braking device of a hydro-generator according to claim 4, characterized in that: The release assembly (7) comprises a manual brake rod (71), the manual brake rod (71) is rotatably fixed on the lower frame (2), and one end of the manual brake rod (71) contacts the ratchet pawl (61).
6. The automatic deceleration and braking device of a hydro-generator according to claim 5, characterized in that: The release assembly (7) further comprises an energy-releasing electromagnetic coil (72) and a controller (73), wherein the energy-releasing electromagnetic coil (72) is electrically connected to the controller (73), and the energy-releasing electromagnetic coil (72) is magnetically connected to the manual brake lever (71).
7. The automatic deceleration and braking device of a hydro-generator according to claim 3 is characterized in that: It also comprises a water spray device (8), wherein a water outlet of the water spray device (8) is located above the brake pad (3).
8. The automatic deceleration and braking device of a hydro-generator according to claim 7, characterized in that: The water spray device (8) comprises a water pipe (81) and a switch valve (82), wherein the water pipe (81) is provided with an opening above the brake pad (3), and the switch valve (82) is fixedly connected with an extension handle (83), wherein the extension handle (83) contacts an end of the separation spring (51) close to the lower frame (2), and the extension handle (83) is pulled by the separation spring (51) to trigger the switch valve (82) to open.
9. The automatic deceleration and braking device of a hydro-generator according to claim 1, characterized in that: The upper frame (1) is provided with a threaded hole (9), and a threaded rod (10) is provided in cooperation with the threaded hole (9), and an end of the threaded rod (10) abuts against the brake pad (3).