Fan brake device
By designing a braking device on a small wind turbine, using hydraulically driven brake pads that engage with a semi-circular groove, and combining this with a laser rangefinder to monitor wear, efficient use and automatic replacement of brake pads are achieved. This solves the problems of high brake pad wear and frequent replacement, ensuring the stability and convenience of the wind turbine.
Patent Information
- Application Number
- CN202520088271.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-01-14
AI Technical Summary
The brake pads of existing small wind turbines wear out quickly and need to be replaced frequently. Furthermore, there is a lack of effective wear monitoring and replacement mechanisms, which affects the stability and ease of use of the equipment.
Design a wind turbine braking device that uses two brake pads that respectively engage with the semi-circular grooves of the brake disc. The brake pads are driven by a hydraulic cylinder to rub against the brake disc to reduce speed, and a laser rangefinder is used to monitor wear, so as to realize automatic replacement of brake pads and balanced use of wear.
It reduces brake pad wear, extends service life, ensures stable operation of the fan, and improves ease of use through automatic monitoring and replacement mechanisms.
Smart Images
Figure CN223662414U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of wind power generation, concretely is a fan brake device. BACKGROUND
[0002] Wind power generation is one of important ways of using natural resources to generate electricity at present, and most of wind power generation adopts wind driven generators to convert wind energy and electric energy, and most of current wind driven generators are constructed in remote areas, so that an intelligent control system is generally used to monitor the wind driven generators, if the rotating speed of the rotating shaft of the wind driven generator is too fast, the temperature inside the wind driven generator will be increased, and if the high temperature lasts for a long time, the wind driven generator may be damaged or even self-ignition and explosion, so that the rotating speed of the rotating shaft of the wind driven generator during wind power generation needs to be monitored, and when the rotating speed exceeds the specified rotating speed, a brake device needs to be used to brake to ensure long-term stability of the wind driven generator, and the brake device for large wind driven generators is relatively complex, and for small wind driven generators, a brake disc is generally arranged on the rotating shaft of the wind driven generator, and when braking, the brake disc and the brake pad are contacted and rubbed to achieve the braking effect, but the brake pad of the current brake device is worn out and needs to be replaced frequently, which is inconvenient to use. SUMMARY
[0003] The utility model provides a fan brake device to solve the defects in the prior art.
[0004] The utility model discloses a fan brake device to solve the defects in the prior art.
[0005] A fan brake device, comprising a brake disc, wherein the brake disc is vertically arranged, the rotating shaft of the fan is fixedly connected to the middle part of the brake disc, one fixed plate is vertically arranged on each side of the brake disc, the middle part of the fixed plate is fixedly connected with the outer ring of a bearing, the inner ring of the bearing is fixedly connected with the rotating shaft of the fan, a first brake groove and a second brake groove are arranged on each side surface of the brake disc, the first brake groove and the second brake groove are semicircular grooves, a first hydraulic cylinder and a second hydraulic cylinder are horizontally arranged on the side of the fixed plate facing the brake disc, one end of the first hydraulic cylinder and the second hydraulic cylinder is fixedly connected with the fixed plate, the other end of the first hydraulic cylinder is connected with a first brake pad, the first brake pad can be inserted and matched with the first brake groove, the other end of the second hydraulic cylinder is connected with a second brake pad, and the second brake pad can be inserted and matched with the second brake groove.
[0006] The utility model discloses a fan brake device, the piston rod of first hydraulic cylinder and second hydraulic cylinder is fixedly provided with a moving plate, and a laser range finder is arranged at the corresponding position of the fixed plate and the moving plate.
[0007] A fan brake device as described above, the two ends of the first brake pad and the second brake pad are provided with impact-resistant blocks with good elasticity.
[0008] A fan brake device as described above, the fixed plate is provided with two first hydraulic cylinders and second hydraulic cylinders on the side facing the brake disc as the center of symmetry of the fan rotating shaft.
[0009] A fan brake device as described above, the first brake pad and the second brake pad are provided with fixed sleeves on the side facing the first hydraulic cylinder and the second hydraulic cylinder, and the piston rod of the first hydraulic cylinder and the second hydraulic cylinder can be inserted into the corresponding fixed sleeves on the first brake pad and the second brake pad and fixedly connected through bolts.
[0010] The utility model discloses the advantages are: the utility model discloses through setting up the first brake pad and the second brake pad in the contact process with the brake disc will directly or with the brake disc rotation finally enter the first brake groove and the second brake groove, and through the first brake pad and the second brake pad in the friction deceleration process with the first brake groove and the second brake groove and move to the first brake groove and the second brake groove end and thus jam realize the quick braking after deceleration, thereby reduce the abrasion of the first brake pad and the second brake pad, the utility model discloses simultaneously adopt the first brake pad and the second brake pad two brake pads and set up brake disc on the both sides of brake disc to be able to play the role of quick deceleration, and the utility model discloses the first brake pad and the second brake pad one side set up two, and can monitor its abrasion condition in real time, when one first brake pad or second brake pad is seriously worn, another first brake pad or second brake pad can be used, and the seriously worn first brake pad or second brake pad is replaced during this period, thereby ensuring the normal operation of fan brake braking. BRIEF DESCRIPTION OF DRAWINGS
[0011] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, below will to the drawing needed to use in the embodiment or prior art description a simple introduction, obviously, the drawing in the following description is some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.
[0012] Figure 1 It is the structure schematic diagram of the utility model;
[0013] Figure 2 It is Figure 1 The sectional view along the line A-A.
[0014] Mark No. : 1, brake disc; 2, fan shaft; 3, fixed plate; 4, bearing; 5, first brake groove; 6, second brake groove; 7, first hydraulic cylinder; 8, second hydraulic cylinder; 9, first brake pad; 10, second brake pad; 11, moving plate; 12, laser range finder; 13, impact-resistant block; 14, fixed sleeve; 15, bolt. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are 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 the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.
[0016] A fan brake device, comprising a brake disc 1, the brake disc 1 is vertically arranged, the fan shaft 2 is fixedly connected in the middle position of the brake disc 1, one fixed plate 3 is vertically arranged on the both sides of the brake disc 1 respectively, the outer ring of the bearing 4 is fixedly connected with the middle part of the fixed plate 3, the inner ring of the bearing 4 is fixedly connected with the fan shaft 2, the first brake groove 5 and the second brake groove 6 are arranged on the both side faces of the brake disc 1 respectively, the first brake groove 5 and the second brake groove 6 are semicircular ring grooves, the first hydraulic cylinder 7 and the second hydraulic cylinder 8 are horizontally arranged on the side of the fixed plate 3 towards the brake disc 1, one end of the first hydraulic cylinder 7 and the second hydraulic cylinder 8 is fixedly connected with the fixed plate 3, the other end of the first hydraulic cylinder 7 is connected with the first brake pad 9, the first brake pad 9 can be inserted and matched with the first brake groove 5, the other end of the second hydraulic cylinder 8 is connected with the second brake pad 10, the second brake pad 10 can be inserted and matched with the second brake groove 6. When the fan shaft rotates at a speed exceeding the specified speed during use, the first hydraulic cylinder 7 and the second hydraulic cylinder 8 are elongated to drive the first brake pad 9 and the second brake pad 10 to contact the brake disc 1 and slow down through the friction between them, at the same time, the first brake pad 9 and the second brake pad 10 will directly or with the brake disc 1 rotate during the process of contacting the brake disc 1 and finally enter the first brake groove 5 and the second brake groove 6, and move to the end of the first brake groove 5 and the second brake groove 6 during the process of slowing down by the friction between the first brake pad 9 and the second brake pad 10 and the first brake groove 5 and the second brake groove 6, so as to be locked to realize the rapid braking after slowing down, thereby reducing the wear of the first brake pad 9 and the second brake pad 10.
[0017] Specifically, the first hydraulic cylinder 7 and the second hydraulic cylinder 8 of the embodiment are fixedly provided with a moving plate 11 on the piston rod, and the fixed plate 3 and the corresponding position of the moving plate 11 are provided with a laser range finder 12. The laser range finder 12 can read the distance between the moving plate 11 and the laser range finder 12 after the first brake pad 9 and the second brake pad 10 enter the first brake groove 5 and the second brake groove 6 during the fan braking process. When the distance exceeds the predetermined distance, it indicates that the first brake pad 9 and the second brake pad 10 are severely worn and need to be replaced in time.
[0018] Specifically, the first brake pad 9 and the second brake pad 10 of the embodiment are provided with impact-resistant blocks 13 at both ends. The impact-resistant blocks 13 in the utility model can play a buffering role when the first brake pad 9 and the second brake pad 10 contact the end of the first brake groove 5 and the second brake groove 6, avoiding the first brake pad 9 and the second brake pad 10 being damaged due to a large impact, and ensuring the normal use of the first brake pad 9 and the second brake pad 10.
[0019] Further, the fixed plate 3 of the embodiment is provided with two first hydraulic cylinders 7 and second hydraulic cylinders 8 on one side of the brake disc 1 as the symmetric center of the fan shaft 2. In the utility model, two first brake pads 9 and second brake pads 10 are arranged on one side, so that when one of the first brake pad 9 or the second brake pad 10 is severely worn, the other first brake pad 9 or second brake pad 10 can be used, and the first brake pad 9 or second brake pad 10 that is severely worn can be replaced during this period, thereby ensuring the normal operation of the fan brake.
[0020] Further, the first brake pad 9 and the second brake pad 10 of the embodiment are provided with a fixed sleeve 14 on one side of the first hydraulic cylinder 7 and the second hydraulic cylinder 8, and the piston rod of the first hydraulic cylinder 7 and the second hydraulic cylinder 8 can be inserted and matched with the corresponding fixed sleeve 14 on the first brake pad 9 and the second brake pad 10 and fixedly connected through the bolt 15. The fixed sleeve 14 and the bolt 15 can conveniently complete the replacement and fixation of the first brake pad 9 and the second brake pad 10, and are convenient to use.
[0021] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.
Claims
1. A fan brake device, characterized by: The utility model provides a kind of brake disc (1), the brake disc (1) is vertically arranged, fan rotating shaft (2) is fixedly connected in the middle position of the brake disc (1), one fixed plate (3) is vertically arranged in the both sides of the brake disc (1) respectively, the outer ring of bearing (4) is fixedly connected in the middle of the fixed plate (3), the inner ring of bearing (4) is fixedly connected with fan rotating shaft (2), first brake groove (5) and second brake groove (6) are respectively arranged in the both sides of the brake disc (1), first hydraulic cylinder (7) and second hydraulic cylinder (8) are transversely arranged in the side of the fixed plate (3) towards brake disc (1), first hydraulic cylinder (7) and second hydraulic cylinder (8) one end are fixedly connected with fixed plate (3), first brake pad (9) is connected in the other end of first hydraulic cylinder (7), first brake pad (9) can be inserted with first brake groove (5) cooperation, second brake pad (10) is connected in the other end of second hydraulic cylinder (8), second brake pad (10) can be inserted with second brake groove (6) cooperation.
2. A brake assembly for a fan according to claim 1, wherein: The piston rod of first hydraulic cylinder (7) and second hydraulic cylinder (8) is fixedly provided with moving plate (11), and laser range finder (12) is arranged in the corresponding position of fixed plate (3) and moving plate (11).
3. A brake assembly for a fan according to claim 1, wherein: Impact-resistant block (13) with good elasticity is arranged at the both ends of first brake pad (9) and second brake pad (10).
4. A brake assembly for a fan according to claim 1, wherein: Two first hydraulic cylinders (7) and second hydraulic cylinders (8) are transversely symmetrically arranged with fan rotating shaft (2) as the center of symmetry in the side of fixed plate (3) towards brake disc (1).
5. A brake assembly for a fan as defined in claim 1, wherein: Fixed sleeve (14) is arranged in the side of first brake pad (9) and second brake pad (10) towards first hydraulic cylinder (7) and second hydraulic cylinder (8), and the piston rod of first hydraulic cylinder (7) and second hydraulic cylinder (8) can be inserted with the corresponding fixed sleeve (14) on first brake pad (9) and second brake pad (10) cooperation and is fixedly connected by bolt (15).