Manual locking mechanism of fan gearbox brake

Abstract

The utility model provides a manual locking mechanism of a fan gear box brake, which relates to the technical field of fan gear box brakes and comprises a bolt component and a placing component, and the bolt component is fixed on a brake body through the placing component. The brake body comprises a main machine body, an auxiliary machine body, a first baffle fixed to the side face of the main machine body, a second baffle fixed to the side face of the auxiliary machine body and friction plates fixed to the auxiliary machine body and the main machine body. According to the manual locking mechanism of the fan gear box brake, the lower inserting rod is inserted into the pin hole, in the inserting process, the guide groove passes through the guide screw, then the lower inserting rod is rotated, the guide screw is aligned with the locking groove, then the lower inserting rod is inserted till the guide screw relatively moves to the retaining groove, then the lower inserting rod is rotated, and the lower inserting rod is prevented from retreating; and the brake disc can be braked when the brake breaks down or emergencies occur, so that the personal safety of workers is ensured.

Description

Technical Field

[0001] The utility model relates to a locking mechanism, in particular to a manual locking mechanism of a fan gear box brake, belonging to the technical field of fan gear box brakes. Background Art

[0002] The high-speed shaft brake of the wind turbine gearbox is usually used in wind power generation systems. Its function is to quickly stop the rotating parts of the wind turbine when it needs to stop or emergency stop to ensure the safety and reliability of the system. This brake is usually designed as an electromagnetic brake or a hydraulic brake.

[0003] When performing maintenance or repair of the wind turbine gearbox, the high-speed shaft needs to be stopped by the brake. In case of a brake failure or emergency, the brake disc is no longer braked and the high-speed shaft will continue to rotate. The rotation of the high-speed shaft will be dangerous and not conducive to the safe maintenance of the staff. For this reason, we provide a manual locking mechanism for the wind turbine gearbox brake. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The utility model provides a manual locking mechanism for a fan gearbox brake, which can brake a brake disc when a brake failure or emergency occurs, so as to ensure the personal safety of workers.

[0006] (II) Technical solution

[0007] The utility model is implemented through the following technical scheme: a manual locking mechanism of a wind turbine gearbox brake, comprising a latch assembly and a placement assembly, wherein the latch assembly is fixed to a brake body through the placement assembly, wherein the brake body comprises a main body, an auxiliary body, a first baffle fixed to a side of the main body, a second baffle fixed to a side of the auxiliary body, and friction plates fixed to the auxiliary body and the main body, wherein the first baffle and the second baffle are provided with a limiting mechanism adapted to the latch assembly, and a preload assembly is provided on the top surface of the first baffle;

[0008] The latch assembly comprises a lower plug rod, one end of which is fixed with an upper plug rod, an end of the lower plug rod away from the upper plug rod is provided with a guide groove, a side of the lower plug rod is provided with a locking groove connected with the guide groove, and a side of the locking groove close to the upper plug rod is connected with a stop groove provided on the side of the lower plug rod;

[0009] The limiting mechanism includes a pin hole that passes through the first baffle and the second baffle in sequence, a guide screw is fixed to the inner wall of the first baffle, the preload assembly includes a base plate fixed to the top surface of the first baffle, the position of the base plate corresponds to the pin hole, a compression spring is fixed to the top surface of the base plate, and a top plate is fixed to the upper end of the compression spring.

[0010] Preferably, a fixing hole penetrating the lower insertion rod is formed on the guide groove, and a safety lock is installed in the fixing hole. By setting the safety lock, the lower insertion rod can be locked to prevent loss.

[0011] Preferably, the inner diameter of the pin hole is greater than the outer diameter of the lower insertion rod, and the inner diameter of the pin hole is smaller than the outer diameter of the upper insertion rod.

[0012] Preferably, the inner diameters of the bottom plate and the top plate are equal to the inner diameter of the pin hole, a rubber pad is fixed to the top surface of the top plate, and the inner diameter of the rubber pad is equal to the inner diameter of the top plate, so as to prevent the lower insertion rod from being limited by the top plate, the rubber pad and the bottom plate and being unable to be inserted into the pin hole.

[0013] Preferably, the placement component includes a bracket, the inner wall of the bracket is in sliding contact with the side of the lower insertion rod, the bracket is provided with bolts, and the bracket is fixed to the main body by bolts. The bracket and the bracket can place the lower insertion rod and the upper insertion rod.

[0014] Preferably, the guide groove, locking groove and anti-retraction groove are all in sliding contact with the side of the guide screw, and the locking effect of the brake disc can be improved by the coordinated arrangement of the guide screw, the guide groove, the locking groove and the anti-retraction groove.

[0015] Preferably, the main body is also provided with an early warning component for early warning, the early warning component includes a control circuit board installed on the top surface of the main body, a locking alarm is installed on one side of the pin hole, the locking alarm is electrically connected to the control circuit board, and the top surface of the main body is also provided with a temperature sensor, the temperature sensor passes through the main body and extends to the friction plate, the temperature sensor is electrically connected to the control circuit board, and the signal indication of the locking alarm can prompt the operator whether the lower insertion rod is inserted into the pin hole.

[0016] The utility model provides a manual locking mechanism for a fan gearbox brake, which has the following beneficial effects:

[0017] 1. The manual locking mechanism of the wind turbine gearbox brake is achieved by inserting the lower plug rod into the pin hole. During the insertion process, the guide groove will pass through the guide screw. Then the lower plug rod is rotated to align the guide screw with the locking groove. Then the lower plug rod is inserted until the guide screw moves relatively to the stop groove. Then the lower plug rod is rotated to prevent the lower plug rod from retreating. In the event of a brake failure or emergency, the brake disc can also be braked to ensure the personal safety of the staff. During the movement of the lower plug rod, the compression spring will be squeezed by the top plate and the rubber pad. The elastic force generated by the deformation of the compression spring can keep the lower plug rod in a certain tightening state at all times, thereby effectively reducing the instability caused by looseness and further improving the locking effect of the brake disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the utility model from a top view perspective;

[0020] Figure 3 For the utility model Figure 1 A schematic diagram of the structure enlargement in the middle;

[0021] Figure 4 For the utility model Figure 2 A magnified schematic diagram of the structure at B in the middle;

[0022] Figure 5 It is an enlarged schematic diagram of the latch assembly structure of the utility model.

[0023] Description of Reference Numerals

[0024] 1. Latch assembly; 101. Lower plug rod; 102. Upper plug rod; 103. Guide groove; 104. Locking groove; 105. Stop groove; 106. Fixing hole; 107. Safety lock;

[0025] 2. Limiting mechanism; 201. Pin hole; 202. Guide screw;

[0026] 3. Preload assembly; 301. Bottom plate; 302. Compression spring; 303. Top plate; 304. Rubber pad;

[0027] 4. Early warning component; 401. Control circuit board; 402. Lock alarm; 403. Temperature sensor;

[0028] 5. Brake body; 501. Main body; 502. Sub-body; 503. First baffle; 504. Friction plate; 505. Second baffle;

[0029] 6. Place components; 601. Bracket; 602. Bolts. DETAILED DESCRIPTION

[0030] The embodiment of the utility model provides a manual locking mechanism for a fan gear box brake.

[0031] See also Figure 1 , Figure 2 and Figure 4 , including a latch assembly 1 and a placement assembly 6, the latch assembly 1 is fixed on the brake body 5 through the placement assembly 6, the brake body 5 includes a main body 501, an auxiliary body 502, a first baffle 503 fixed on the side of the main body 501, a second baffle 505 fixed on the side of the auxiliary body 502, and a friction plate 504 fixed on the auxiliary body 502 and the main body 501.

[0032] The placement component 6 includes a bracket 601, the inner wall of the bracket 601 is in sliding contact with the side of the lower insertion rod 101, and a bolt 602 is provided on the bracket 601. The bracket 601 is fixed to the main body 501 by the bolt 602. When no repair or maintenance is required, the inner diameter of the bracket 601 is smaller than the outer diameter of the upper insertion rod 102. The lower insertion rod 101 can be placed in the bracket 601 and locked to the bracket 601 by the cooperation of the safety lock 107 and the fixing hole 106 to avoid loss.

[0033] See also Figure 1 , Figure 2 and Figure 5 The latch assembly 1 includes a lower plug rod 101, one end of which is fixed with an upper plug rod 102, a guide groove 103 is provided at the end of the lower plug rod 101 away from the upper plug rod 102, a locking groove 104 is provided on the side of the lower plug rod 101 and is connected to the guide groove 103, the locking groove 104 is connected to a stop groove 105 provided on the side of the lower plug rod 101 on the side close to the upper plug rod 102, a fixing hole 106 is provided on the guide groove 103 and passes through the lower plug rod 101, and a safety lock 107 is installed in the fixing hole 106, and the lower plug rod 101 can be prevented from withdrawing by locking the safety lock 107.

[0034] Align the guide groove 103 on the lower plug rod 101 with the guide screw 202, and then insert the lower plug rod 101 into the pin hole 201 on the first baffle 503 and the corresponding hole on the brake disc, and continue to move the lower plug rod 101 downward. The lower end of the lower plug rod 101 will be inserted into the pin hole 201 on the second baffle 505. When the guide screw 202 reaches the top of the locking groove 104 on the lower plug rod 101, rotate the lower plug rod 101 clockwise ninety degrees to complete the locking operation.

[0035] See also Figure 2 and Figure 3 The first baffle plate 503 and the second baffle plate 505 are provided with a limiting mechanism 2 adapted to the latch assembly 1. The limiting mechanism 2 includes a pin hole 201 which passes through the first baffle plate 503 and the second baffle plate 505 in sequence. A guide screw 202 is fixed to the inner wall of the first baffle plate 503. The inner diameter of the pin hole 201 is greater than the outer diameter of the lower plug rod 101, and the inner diameter of the pin hole 201 is less than the outer diameter of the upper plug rod 102. The guide groove 103, the locking groove 104 and the stop groove 105 are all in sliding contact with the side of the guide screw 202.

[0036] See also Figure 3A preload component 3 is provided on the top surface of the first baffle plate 503, and the preload component 3 includes a bottom plate 301 fixed on the top surface of the first baffle plate 503, the inner diameter values ​​of the bottom plate 301 and the top plate 303 are equal to the inner diameter value of the pin hole 201, and a rubber pad 304 is fixed on the top surface of the top plate 303, and the inner diameter value of the rubber pad 304 is equal to the inner diameter value of the top plate 303, so as to prevent the lower insertion rod 101 from being restricted by the top plate 303, the rubber pad 304 and the bottom plate 301 and being unable to be inserted into the pin hole 201. The position of the bottom plate 301 corresponds to the pin hole 201, and a compression spring 302 is fixed on the top surface of the bottom plate 301, and the upper end of the compression spring 302 is fixed to the top plate 303.

[0037] When the upper and lower insertion rods 102, 101 move downward, the upper insertion rod 102 will squeeze the compression spring 302 through the rubber pad 304 and the top plate 303. The squeezed compression spring 302 will generate elastic force through deformation. The elastic force generated by the compression spring 302 can keep the lower insertion rod 101 in a certain tightening state at all times, thereby effectively reducing the instability caused by the loosening of the lower insertion rod 101 and further improving the locking effect of the brake disc.

[0038] See also Figure 1 , Figure 2 and Figure 3 The main body 501 is also provided with an early warning component 4 for early warning, and the early warning component 4 includes a control circuit board 401 installed on the top surface of the main body 501, and a locking alarm 402 is installed on one side of the pin hole 201, and the locking alarm 402 is electrically connected to the control circuit board 401. The top surface of the main body 501 is also provided with a temperature sensor 403, and the temperature sensor 403 passes through the main body 501 and extends to the friction plate 504, and the temperature sensor 403 is electrically connected to the control circuit board 401.

[0039] When the locking alarm 402 is inserted into the lower plug rod 101, the sensor switch senses the lower plug rod 101 and a signal indication appears. The locking alarm 402 will transmit the signal to the control circuit board 401, and then the control circuit board 401 will perform the corresponding control action according to the received signal, and prompt the operator through the locking alarm 402. At this time, the lower plug rod 101 has been locked and further operations can be performed. On the contrary, when there is no signal from the sensor switch, it means that the manual latch has not been inserted and manual locking cannot be performed. It is unsafe and it is impossible to proceed to the next step of repair and maintenance.

[0040] The temperature sensor 403 is installed in the screw hole of the main body 501 of the brake, and the contact is in contact with the surface of the friction plate 504. The temperature of the friction plate 504 is transmitted to the temperature sensor 403 through the contact. The temperature sensor 403 can transmit the temperature signal to the control circuit board 401. When the temperature of the friction plate 504 exceeds the set threshold, the control circuit board 401 will trigger the corresponding action, and the locking alarm 402 will be controlled by the control circuit board 401 to sound an alarm, reminding the staff that the brake pad temperature is too high.

[0041] Working principle: When performing maintenance or repair on the wind turbine gearbox, first align the guide groove 103 and the guide screw 202 on the lower plug rod 101, and then insert the lower plug rod 101 into the pin hole 201 on the first baffle 503 and the corresponding hole on the brake disc. When the guide screw 202 reaches the top of the locking groove 104 on the lower plug rod 101, rotate the lower plug rod 101 clockwise ninety degrees to complete the locking operation. In the event of a brake failure or emergency, the brake disc can also be braked to ensure the personal safety of the staff.

[0042] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A manual locking mechanism for a wind turbine gearbox brake, comprising a latch assembly (1) and a placement assembly (6), wherein the latch assembly (1) is fixed to a brake body (5) via the placement assembly (6), wherein the brake body (5) comprises a main body (501), an auxiliary body (502), a first baffle (503) fixed to a side of the main body (501), a second baffle (505) fixed to a side of the auxiliary body (502), and friction plates (504) fixed to the auxiliary body (502) and the main body (501), characterized in that: The first baffle plate (503) and the second baffle plate (505) are provided with a limiting mechanism (2) adapted to the latch assembly (1), and the top surface of the first baffle plate (503) is provided with a preload assembly (3); The latch assembly (1) comprises a lower plug rod (101), one end of which is fixed with an upper plug rod (102), a guide groove (103) is provided at one end of the lower plug rod (101) away from the upper plug rod (102), a locking groove (104) connected to the guide groove (103) is provided on the side of the lower plug rod (101), and a side of the locking groove (104) close to the upper plug rod (102) is connected to a stop groove (105) provided on the side of the lower plug rod (101); The limiting mechanism (2) comprises a pin hole (201) which passes through the first baffle (503) and the second baffle (505) in sequence, a guide screw (202) is fixed to the inner wall of the first baffle (503), and the preload assembly (3) comprises a bottom plate (301) fixed to the top surface of the first baffle (503), the position of the bottom plate (301) corresponds to the pin hole (201), a compression spring (302) is fixed to the top surface of the bottom plate (301), and a top plate (303) is fixed to the upper end of the compression spring (302).

2. The manual locking mechanism of a fan gearbox brake according to claim 1, characterized in that: The guide groove (103) is provided with a fixing hole (106) penetrating the lower insertion rod (101), and a safety lock (107) is installed in the fixing hole (106).

3. The manual locking mechanism of a wind turbine gearbox brake according to claim 1, characterized in that: The inner diameter of the pin hole (201) is greater than the outer diameter of the lower insertion rod (101), and the inner diameter of the pin hole (201) is smaller than the outer diameter of the upper insertion rod (102).

4. The manual locking mechanism of a wind turbine gearbox brake according to claim 1, characterized in that: The inner diameters of the bottom plate (301) and the top plate (303) are equal to the inner diameter of the pin hole (201); a rubber pad (304) is fixed to the top surface of the top plate (303); and the inner diameter of the rubber pad (304) is equal to the inner diameter of the top plate (303).

5. The manual locking mechanism of a wind turbine gearbox brake according to claim 1, characterized in that: The placement component (6) comprises a bracket (601), the inner wall of the bracket (601) is in sliding contact with the side of the lower insertion rod (101), and the bracket (601) is provided with a bolt (602), and the bracket (601) is fixed to the main body (501) by the bolt (602).

6. The manual locking mechanism of a wind turbine gearbox brake according to claim 1, characterized in that: The guide groove (103), the locking groove (104) and the stop groove (105) are all in sliding contact with the side surface of the guide screw (202).

7. The manual locking mechanism of a wind turbine gearbox brake according to claim 1, characterized in that: The main body (501) is also provided with an early warning component (4) for early warning, the early warning component (4) comprising a control circuit board (401) mounted on the top surface of the main body (501), a locking alarm (402) is mounted on one side of the pin hole (201), the locking alarm (402) and the control circuit board (401) are electrically connected, and the top surface of the main body (501) is also provided with a temperature sensor (403), the temperature sensor (403) passes through the main body (501) and extends to the friction plate (504), and the temperature sensor (403) and the control circuit board (401) are electrically connected.

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