A spindle brake

Abstract

The utility model discloses a main shaft brake relates to the field of wind power generation equipment, this brake includes brake body, upper brake mechanism, lower brake mechanism and base, and upper, lower brake mechanism is arranged respectively on the upper portion of brake body, lower portion. Upper brake mechanism includes upper brake piece installation platform, hydraulic installation platform and piston bolt with return spring, and hydraulic equipment moves through piston and promotes brake piece installation platform, and piston bolt penetrates spacing support and is fixed with installation platform, and return spring can store elastic potential energy when braking, and the quick release of in reset stage realizes the efficient reset of friction plate, and brake piece adopts split detachable structure, and is composed of independent brake block and brake block bottom piece, realizes the self -adaptation of with brake disc and is attached to through elastic component, reduces local wear and tear, and can replace the brake block of wear and tear seriously alone, and the material reserve cost and maintenance cost are reduced significantly. The utility model effectively promotes the brake response speed, the performance of attaching and economy.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation equipment, and more specifically, to a main shaft brake. Background Technology

[0002] The main shaft brake is the core component of the wind turbine generator's main shaft braking system. It is a mechanical part that stops or slows down the moving parts of the main shaft. Its working principle is: by driving and controlling the friction pads to contact the main shaft brake disc to generate braking torque, thereby controlling the movement state of the main shaft.

[0003] The current spindle brake has a long reset waiting time, resulting in a high delay in braking response. This is because after completing one braking operation, the spindle brake needs to wait for its friction pads to reset before it can perform the next braking operation. However, the current spindle brake does not consider how to accelerate the reset process.

[0004] Because current spindle brakes (such as the spindle brake described in application number 201020666238.5) use an integrated friction pad design, the friction pad cannot fully fit the spindle brake disc, which easily causes severe local wear of the friction pad, resulting in a decrease in braking effect. In addition, when the friction pad is severely worn in a localized area, it is often necessary to replace the entire friction pad, which results in a large material reserve for the friction pad and makes it impossible to fully utilize the friction pad.

[0005] Therefore, there is a need to provide a spindle brake to solve the technical problems of existing technology, such as slow friction plate reset speed, inability to fully fit the spindle brake disc, resulting in severe local wear and high material storage costs. Utility Model Content

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide a spindle brake that optimizes the friction plate reset speed, promotes the contact between the friction plate and the spindle brake disc, and reduces material storage costs.

[0007] The objective of this utility model is achieved through the following technical solution:

[0008] This utility model provides a spindle brake, including a brake body, an upper braking mechanism, a lower braking mechanism, and a base; wherein, the brake body is fixedly mounted on the base, and the upper braking mechanism and the lower braking mechanism are respectively mounted on the upper and lower parts of the brake body;

[0009] The upper braking mechanism includes: an upper brake pad mounting platform, a hydraulic mounting platform, and a first limiting bracket that extends from both sides of the hydraulic mounting platform; wherein, the hydraulic mounting platform is provided with a hydraulic device, and the upper brake pad mounting platform is limited to the left and right and movable up and down in the middle of the first limiting bracket;

[0010] The hydraulic device performs hydraulic braking through a piston. The bottom of the upper brake pad mounting platform is fixedly connected to the piston, and fixed points are provided at the left and right ends of the bottom. The first limiting bracket has a hole through the corresponding screw hole, and a piston bolt with a nested return spring passes through the hole from top to bottom. The bottom of the piston bolt is fixed at the fixed point.

[0011] The lower braking mechanism includes: a lower brake pad mounting platform and a second limiting bracket; wherein, the second limiting bracket is disposed at a position below the first limiting bracket, and the lower brake pad mounting platform is fixedly mounted on the second limiting bracket;

[0012] The upper and lower brake pad mounting platforms are provided with embedded mounting slots, and detachable brake pads are respectively embedded and installed through side connectors; wherein, the detachable brake pads include several independently arranged brake blocks and brake block bases; the brake blocks are evenly distributed on the brake block bases, and the brake block bases are embedded in the upper and lower brake pad mounting platforms.

[0013] As a further solution, the brake block is a movable brake block, including a brake block head, a brake block base, and an elastic component; wherein, the brake block head is disposed on the upper part of the brake block base, and the elastic component is disposed at the bottom of the brake block base.

[0014] As a further solution, the brake block head is a circular brake block, and the brake block base is a square brake block base.

[0015] As a further solution, the elastic component is one of a spring, an elastic piston, a rubber block, or a leaf spring.

[0016] As a further solution, the brake block base is provided with a mounting groove corresponding to the brake block; wherein, the mounting groove exposes the head of the brake block and defines and fixes the brake block base.

[0017] As a further solution, the depth of the mounting slot is set as follows:

[0018] When the elastic component is fully compressed, the head of the brake block is not lower than the bottom plane of the brake block base;

[0019] When the elastic component is fully extended, the brake block base fits tightly against the bottom of the brake block base.

[0020] As a further solution, a screw hole is provided at the fixing point, and the bottom outer periphery of the piston bolt is threaded and installed in the screw hole at the fixing point.

[0021] As a further solution, the left and right sides of the brake pad base are respectively provided with screw holes; the connector is set by a detachable screw and passes through the upper brake pad mounting platform and the lower brake pad mounting platform, and is connected to the screw hole of the brake pad base.

[0022] The spindle brake of this utility model has at least the following beneficial effects:

[0023] 1. Significantly Improved Braking Response Speed ​​and Working Efficiency: This invention utilizes a piston bolt with a nested return spring between the limiting bracket and the brake pad mounting platform to store elastic potential energy during braking. During the reset phase, this elastic potential energy is converted into kinetic energy, actively and rapidly pushing the friction pads to reset, greatly shortening the reset waiting time. This effectively reduces braking response delay and improves the overall working efficiency and frequency of the main shaft brake.

[0024] 2. Significantly improves wear uniformity and extends service life: This utility model adopts a detachable friction plate structure composed of multiple independent brake blocks, combined with elastic components at its bottom (such as springs and rubber blocks), so that each brake block can independently and adaptively fine-tune, maintaining a more complete fit with the surface of the main shaft brake disc. This avoids the problem of localized uneven wear caused by uneven contact in traditional integrated friction plates, making the wear more uniform and significantly extending the overall service life of the friction plate.

[0025] 3. Significantly Reduced Material Storage and Maintenance Costs: The modular brake block design of this invention allows for targeted replacement of individual or partial brake blocks with severe localized wear, eliminating the need to replace the entire friction pad. This not only reduces the types and quantities of spare friction pads required for storage, lowering inventory costs, but also maximizes the utilization of friction materials, saving on maintenance costs.

[0026] 4. Enhanced stability and safety during braking: The piston bolt and return spring structure symmetrically distributed on the left and right sides of this utility model make the force more balanced and stable during the downward and return processes of the hydraulic device, reducing jamming and impact, improving the reliability and consistency of braking action, and also optimizing the mechanical response to changes in oil pressure, thus enhancing the safety of the equipment.

[0027] 5. Simplified installation and replacement process: The brake pad base of this utility model is connected to the mounting platform with screws, and the piston bolt is fixed by a threaded connection. These modular and standardized detachable connection designs make on-site installation, daily maintenance, and friction pad replacement operations simpler and faster, reducing the time and labor costs required for maintenance. Attached Figure Description

[0028] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0029] Figure 1 A schematic diagram of the overall structure of a spindle brake provided by this utility model;

[0030] Figure 2 A side view of a spindle brake provided by this utility model;

[0031] Figure 3 Schematic diagram of the overall structure of the detachable brake pad provided by this utility model Figure 1 ;

[0032] Figure 4 Schematic diagram of the overall structure of the detachable brake pad provided by this utility model Figure 2 ;

[0033] Figure 5 A schematic diagram of the overall structure of the brake block substrate provided by this utility model;

[0034] Figure 6 A schematic diagram of the overall structure of the movable brake block provided by this utility model;

[0035] The reference numerals in the attached drawings are as follows: 1. Brake body; 2. Upper braking mechanism; 21. Hydraulic device; 22. First limiting bracket; 23. Upper brake pad mounting platform; 24. Piston bolt; 3. Lower braking mechanism; 31. Lower brake pad mounting platform; 4. Base; 51. Embedded mounting groove; 52. Brake block base; 53. Brake block; 54. Fixing point; 55. Elastic component; 56. Mounting groove; 57. Brake block base; 58. Brake block head.

[0036] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] It should be noted that in this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an apparatus or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an apparatus or system. Without further limitations, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the apparatus or system including that element. In this application, unless otherwise expressly specified and limited, the terms "connected," "fixed," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements.

[0039] In this application, descriptions involving terms such as "left and right" or "up and down" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the orientation of the indicated technical feature. Therefore, features defined as "left and right" or "up and down" may explicitly or implicitly include at least one orientation. Those skilled in the art can understand the specific meaning of the orientation of the above terms in this application based on the specific circumstances. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0040] See attached document Figure 1 This embodiment provides a spindle brake, which aims to optimize the return speed of the friction pad, promote the contact between the friction pad and the spindle brake disc, and reduce material storage costs.

[0041] The objective of this utility model is achieved through the following technical solution:

[0042] like Figure 2 As shown, this utility model provides a spindle brake, including a brake body 1, an upper braking mechanism 2, a lower braking mechanism 3, and a base 4; wherein, the brake body 1 is fixedly installed on the base 4, and the upper braking mechanism 2 and the lower braking mechanism 3 are respectively installed at the upper and lower parts of the brake body 1.

[0043] like Figure 1As shown, the upper braking mechanism 2 includes: an upper brake pad mounting platform 23, a hydraulic mounting platform, and a first limiting bracket 22 that unfolds from both sides of the hydraulic mounting platform; wherein, the hydraulic mounting platform is provided with a hydraulic device 21, and the upper brake pad mounting platform 23 is limited to the left and right and movable up and down in the middle of the first limiting bracket 22.

[0044] like Figure 1 As shown, the hydraulic device 21 performs hydraulic braking through a piston. The bottom of the upper brake pad mounting platform 23 is fixedly connected to the piston, and fixed points 54 are provided at the left and right ends of the bottom. The first limiting bracket 22 has a hole through the corresponding screw hole, and a piston bolt 24 with a nested return spring passes through the hole from top to bottom. The bottom of the piston bolt 24 is fixed on the fixed point 54.

[0045] The lower braking mechanism 3 includes: a lower brake pad mounting platform 31 and a second limiting bracket; wherein, the second limiting bracket is located at a position opposite to the first limiting bracket 22, and the lower brake pad mounting platform 31 is fixedly mounted on the second limiting bracket;

[0046] like Figure 3 and Figure 4 As shown, the upper brake pad mounting platform 23 and the lower brake pad mounting platform 31 are provided with embedded mounting grooves 51, and detachable brake pads are respectively embedded and installed through side connectors; wherein, the detachable brake pad includes several independently arranged brake blocks 53 and brake block base plates 52; the brake blocks 53 are evenly distributed on the brake block base plates 52, and the brake block base plates 52 are embedded in the upper brake pad mounting platform 23 and the lower brake pad mounting platform 31.

[0047] It should be noted that: after the piston of the hydraulic device 21 is pressed down in a traditional spindle brake, it is necessary to wait for the negative pressure to drive or for the hydraulic pressure to rebound before the friction plate can be reset; this process limits the reset speed of the friction plate, thus affecting the working efficiency of the spindle brake.

[0048] Therefore, in this embodiment, a hole is provided through the screw hole corresponding to the first limiting bracket 22, and a piston bolt 24 with a nested return spring is used to pass through the hole from top to bottom and the bottom of the piston bolt 24 is fixed to the fixing point 54. During braking, the hydraulic device 21 presses down the detachable brake pad, and the piston bolt 24 with the nested return spring is fixedly connected to the detachable brake pad. Under the action of the detachable brake pad, it will compress the return spring and store elastic potential energy. During reset, since the elastic potential energy stored in the return spring is converted into kinetic energy during reset, it will drive the detachable brake pad to reset quickly, thereby improving the reset efficiency.

[0049] In addition, since piston bolts 24 with nested return springs are installed at both ends of the first limiting bracket 22, the force applied during the piston pressing process is smoother and the force applied on both sides is more uniform during braking, which further enhances the practicality of the device.

[0050] In addition, in order to reduce material storage costs and enhance the reusability of the device, this embodiment adopts independently set brake blocks 53 on the basis of detachable brake pads. When the friction pads are severely worn in some areas, each brake block 53 can be disassembled and replaced independently, thereby achieving the effect of "targeted replacement of local parts".

[0051] Furthermore, the brake block 53 is a movable brake block 53, including a brake block head 58, a brake block base 57 and an elastic component 55; wherein, the brake block head 58 is disposed on the upper part of the brake block base 57, and the elastic component 55 is disposed on the bottom of the brake block base 57.

[0052] like Figure 6 As shown, the brake block head 58 is a circular brake block 53, and the brake block base 57 is a square brake block base 57; the elastic component 55 is one of a spring, an elastic piston, a rubber block, or a leaf spring.

[0053] It should be noted that using a circular brake block 53 can better enable the brake block head 58 to adapt to forces acting in different directions, ensuring uniform force distribution throughout the brake.

[0054] like Figure 5 As shown, the brake block base 52 has a mounting groove 56 corresponding to the brake block 53; wherein, the mounting groove 56 exposes the brake block head 58 and defines and fixes the brake block base 57.

[0055] Using a square brake block base 57 can better ensure that the brake block base 57 is stably snapped into the mounting groove 56, and the elastic component 55 can be selected and set according to the actual situation.

[0056] Furthermore, the depth of the mounting slot 56 is set as follows:

[0057] When the elastic component 55 is fully compressed, the brake block head 58 is not lower than the bottom plane of the brake block base 57;

[0058] When the elastic component 55 is fully extended, the brake block base 57 is in close contact with the bottom of the brake block base 52.

[0059] like Figure 4As shown, a screw hole is provided at the fixing point 54, and the bottom outer periphery of the piston bolt 24 is threaded and installed in the screw hole of the fixing point 54. During installation, the piston bolt 24 only needs to be passed through the hole on the first limiting bracket 22 and fitted with the screw hole to fix the bottom of the piston bolt 24 to the fixing point 54.

[0060] like Figure 3 As shown, the left and right sides of the brake block base 52 are respectively provided with screw holes; the connecting member is set by a detachable screw and passes through the upper brake pad mounting platform 23 and the lower brake pad mounting platform 31, and is connected to the screw hole of the brake block base 52, thereby realizing the detachable installation of the brake block 53.

[0061] The above are only some embodiments of this application and do not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A spindle brake, comprising a brake body (1), an upper braking mechanism (2), a lower braking mechanism (3), and a base (4); wherein, The brake body (1) is fixedly mounted on the base (4), and the upper braking mechanism (2) and lower braking mechanism (3) are respectively mounted on the upper and lower parts of the brake body (1); characterized in that, The upper braking mechanism (2) includes: an upper brake pad mounting platform (23), a hydraulic mounting platform, and a first limiting bracket (22) that unfolds from both sides of the hydraulic mounting platform; wherein, the hydraulic mounting platform is provided with a hydraulic device (21), and the upper brake pad mounting platform (23) is limited to the left and right and movable up and down in the middle of the first limiting bracket (22); The hydraulic device (21) performs hydraulic braking through a piston. The bottom of the upper brake pad mounting platform (23) is fixedly connected to the piston, and fixed points (54) are provided at the left and right ends of the bottom. The first limiting bracket (22) has a hole through the screw hole, and a piston bolt (24) with a return spring is used to pass through the hole from top to bottom. The bottom of the piston bolt (24) is fixed on the fixed point (54). The lower braking mechanism (3) includes: a lower brake pad mounting platform (31) and a second limiting bracket; wherein, the second limiting bracket is located at a position opposite to the first limiting bracket (22), and the lower brake pad mounting platform (31) is fixedly mounted on the second limiting bracket; The upper brake pad mounting platform (23) and the lower brake pad mounting platform (31) are provided with embedded mounting grooves (51), and detachable brake pads are respectively embedded and installed through side connectors; wherein, the detachable brake pads include several independently arranged brake blocks (53) and brake block base plates (52); the brake blocks (53) are evenly distributed on the brake block base plates (52), and the brake block base plates (52) are embedded in the upper brake pad mounting platform (23) and the lower brake pad mounting platform (31).

2. A spindle brake according to claim 1, characterized in that, The brake block (53) is a movable brake block (53), including a brake block head (58), a brake block base (57) and an elastic component (55); wherein, the brake block head (58) is disposed on the upper part of the brake block base (57), and the elastic component (55) is placed at the bottom of the brake block base (57).

3. A spindle brake according to claim 2, characterized in that, The brake block head (58) is a circular brake block (53), and the brake block base (57) is a square brake block base (57).

4. A spindle brake according to claim 2, characterized in that, The elastic component (55) is one of a spring, an elastic piston, a rubber block, or a leaf spring.

5. A spindle brake according to claim 2, characterized in that, The brake block base plate (52) has an installation groove (56) corresponding to the brake block (53); wherein the installation groove (56) exposes the brake block head (58) and defines and fixes the brake block base (57).

6. A spindle brake according to claim 5, characterized in that, The depth of the mounting slot (56) is set as follows: When the elastic component (55) is fully compressed, the head (58) of the brake block is not lower than the bottom plane of the brake block base (57); When the elastic component (55) is fully extended, the brake block base (57) is in close contact with the bottom of the brake block base (52).

7. A spindle brake according to claim 1, characterized in that, A screw hole is provided at the fixed point (54), and the bottom outer periphery of the piston bolt (24) is threaded and installed in the screw hole of the fixed point (54).

8. A spindle brake according to claim 1, characterized in that, The left and right sides of the brake pad base (52) are respectively provided with screw holes; the connector is set by a detachable screw and passes through the upper brake pad mounting platform (23) and the lower brake pad mounting platform (31) to connect to the screw hole of the brake pad base (52).

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