A safety supporting device for a speed regulating mechanism of a new energy power generation system

Abstract

This utility model relates to the technical field of safety support devices for power generation systems, and provides a safety support device for a speed regulation mechanism in a new energy power generation system. The device includes a support base, a speed regulation mechanism transmission rod, a safety protection mechanism, and a linkage drive mechanism. The support base has an internal mounting cavity. The speed regulation mechanism transmission rod is rotatably connected to the support base via bearings, and the safety protection mechanism is housed within the mounting cavity. In this design, a belt enables the speed regulation mechanism transmission rod to synchronously drive a second driven rod, and gear transmission causes the first driven rod to rotate, driving the connecting rod and linkage rod to move centrifugally. The centrifugal structure generates radial displacement as the rotational speed increases, pushing the wedge block to move axially, causing the two brake pads to clamp and contact the brake disc. This structure automatically triggers when the rotational speed exceeds the limit, and the centrifugal force is proportional to the rotational speed. The wedge block displacement increases linearly with increasing rotational speed, and the brake pad pressure increases synchronously, achieving precise matching between braking torque and rotational speed.

Description

Technical Field

[0001] This utility model belongs to the technical field of safety support devices for power generation systems, and particularly relates to a safety support device for a speed regulation mechanism of a new energy power generation system. Background Technology

[0002] The speed control mechanism of a new energy power generation system is the core control system for achieving dynamic balance between the output power of new energy units such as wind and solar power and the grid frequency. Essentially, it is a technical device that maintains the rated speed (corresponding to the grid's rated frequency) by adjusting the mechanical input or electrical parameters of the generator set in real time. When the grid load suddenly increases, the electromagnetic resistance torque of the generator increases, causing the speed to drop. The speed control mechanism restores the rated speed by increasing the energy input of the prime mover, such as adjusting the pitch angle of the wind turbine or increasing the power of the photovoltaic inverter. Conversely, when the load decreases, the energy input is reduced to prevent overspeed. The speed control mechanism needs to be supported by safety support devices.

[0003] Although there are various types of safety support devices available today, some problems still exist. For example, traditional mechanical support structures can only provide physical load-bearing functions and lack an active protection mechanism when the speed exceeds the limit. When the generator shaft speed exceeds the safety threshold, it cannot trigger automatic braking or dynamically adjust the braking force, which significantly increases the risk of motor overspeed damage.

[0004] In existing technologies, although wind power pitch systems use braking resistors for overload protection, their response speed and control accuracy are insufficient to meet the real-time speed regulation requirements under high-speed conditions. While electromagnetic braking devices have fast response characteristics, they have not formed an integrated safety solution with the support structure. This single-function design can no longer meet the increasingly complex operating conditions and safety and reliability requirements of new energy power generation systems. Utility Model Content

[0005] This utility model provides a safety support device for the speed regulation mechanism of a new energy power generation system, aiming to solve the problem that the current support devices have only a single function, can only provide physical load bearing function, and lack an active protection mechanism when the speed exceeds the limit.

[0006] This utility model is implemented as follows: a safety support device for a speed regulation mechanism of a new energy power generation system includes: a support base, a speed regulation mechanism transmission rod, a safety protection mechanism, and a linkage drive mechanism. The support base has an internal mounting cavity. The speed regulation mechanism transmission rod is rotatably connected to the support base through a bearing. The safety protection mechanism is located inside the mounting cavity. The linkage drive mechanism is located on the top of the support base.

[0007] The safety protection mechanism includes a brake disc, a support rod, a linkage plate, brake pads, an abutment end, a wedge block, and a push-pull rod. The brake disc is coaxially fixed on the transmission rod of the speed regulating mechanism and located within the mounting cavity. The support rod is horizontally fixed within the mounting cavity and located above the brake disc. Two linkage plates are symmetrically arranged and rotatably connected to the support rod. The brake disc is located between the two linkage plates. The brake pads are fixed on the linkage plate near the brake disc. The abutment end is located at the top of the linkage plate and has an inclined structure. The push-pull rod is slidably connected to the top of the support base. The wedge block is fixed to the bottom of the push-pull rod and slidably abuts between two adjacent abutment ends.

[0008] Preferably, the linkage drive mechanism includes a linkage seat, a fixed frame, a first driven rod, a docking seat, a docking rod, and a linkage rod. The linkage seat is rotatably connected to the top of the push-pull rod. The fixed frame is fixed above the support seat. The first driven rod is rotatably connected to the center of the top of the fixed frame and is located on the same axis as the push-pull rod. The docking seat is fixed to the bottom of the first driven rod. One end of the docking rod is rotatably connected to the docking seat. One end of the linkage rod is rotatably connected to the linkage seat, and the other end is rotatably connected to the docking rod.

[0009] Preferably, a counterweight ball is fixed to the other end of the connecting rod, and two sets of the overall structure composed of the connecting rod, the linkage rod and the counterweight ball are symmetrically arranged.

[0010] Preferably, the linkage drive mechanism further includes a second driven rod, a passive bevel gear, a linkage bevel gear, and a belt. The second driven rod is rotatably connected to the top of the fixed frame and is arranged parallel to the transmission rod of the speed regulating mechanism. The passive bevel gear is coaxially fixed to one end of the second driven rod. The linkage bevel gear is coaxially fixed to the top of the first driven rod and meshes with the passive bevel gear. The belt is arranged between the transmission rod of the speed regulating mechanism and the second driven rod.

[0011] Preferably, the other end of the second driven rod and the transmission rod of the speed regulating mechanism are both coaxially fixed with pulleys, and the belt is disposed between two adjacent pulleys.

[0012] Preferably, a torsion spring is fitted on the support rod, with one end of the torsion spring fixed to the support rod and the other end fixed to the linkage plate.

[0013] Compared with the prior art, the embodiments of this application have the following main advantages:

[0014] This solution incorporates a safety protection mechanism and a linkage drive mechanism. A belt drives the speed regulating mechanism's transmission rod to synchronously move the second driven rod, which in turn rotates via gear transmission, causing the connecting rod and linkage rod to move centrifugally. As the rotational speed increases, the centrifugal structure generates radial displacement, pushing the wedge block to move axially. This causes the two brake pads to clamp and contact the brake disc. This structure automatically triggers when the speed exceeds the limit, and the centrifugal force is proportional to the rotational speed. The wedge block displacement increases linearly with the rotational speed, and the brake pad pressure increases synchronously, achieving precise matching between braking torque and rotational speed. The safety protection mechanism and the linkage drive mechanism work together to adaptively adjust the rotational speed of the speed regulating mechanism's transmission rod, overcoming the limitations of traditional single-function support devices. This combines structural support and speed protection into one, preventing equipment damage caused by overspeeding. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall external structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal connection structure of the support base of this utility model;

[0017] Figure 3 This is a schematic diagram of the safety protection mechanism structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the linkage drive mechanism of this utility model;

[0019] In the diagram: 1. Support seat; 2. Speed ​​regulating mechanism transmission rod; 3. Safety protection mechanism; 31. Brake disc; 32. Support rod; 33. Linkage plate; 34. Brake pad; 35. Abutment end; 36. Wedge block; 37. Push-pull rod; 38. Torsion spring; 4. Linkage drive mechanism; 41. Linkage seat; 42. Fixing frame; 43. First driven rod; 44. Connecting seat; 45. Connecting rod; 46. Linkage rod; 47. Counterweight ball; 48. Second driven rod; 49. Driven bevel gear; 410. Linkage bevel gear; 411. Belt; 412. Belt pulley. Detailed Implementation

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] This utility model embodiment provides a safety support device for the speed regulation mechanism of a new energy power generation system, such as... Figure 1-4 As shown, it includes: a support base 1, a speed regulating mechanism transmission rod 2, a safety protection mechanism 3, and a linkage drive mechanism 4. The support base 1 has an internal mounting cavity. The speed regulating mechanism transmission rod 2 is rotatably connected to the support base 1 through a bearing. The safety protection mechanism 3 is located inside the mounting cavity. The linkage drive mechanism 4 is located on the top of the support base 1.

[0023] The safety protection mechanism 3 includes a brake disc 31, a support rod 32, a linkage plate 33, a brake pad 34, an abutment end 35, a wedge block 36, and a push-pull rod 37. The brake disc 31 is coaxially fixed on the transmission rod 2 of the speed regulating mechanism and is located in the mounting cavity. The support rod 32 is horizontally fixed in the mounting cavity and is located above the brake disc 31. The linkage plate 33 is rotatably connected to the support rod 32 and there are two symmetrically arranged. The brake disc 31 is located between the two linkage plates 33. The brake pad 34 is fixed on the linkage plate 33 on the side close to the brake disc 31. The abutment end 35 is located at the top of the linkage plate 33 and has an inclined structure. The push-pull rod 37 is slidably connected to the top of the support base 1. The wedge block 36 is fixed to the bottom of the push-pull rod 37 and slides between two adjacent abutment ends 35.

[0024] The linkage drive mechanism 4 includes a linkage seat 41, a fixed frame 42, a first driven rod 43, a docking seat 44, a docking rod 45, and a linkage rod 46. The linkage seat 41 is rotatably connected to the top of the push-pull rod 37. The fixed frame 42 is fixed above the support seat 1. The first driven rod 43 is rotatably connected to the top center of the fixed frame 42 and is located on the same axis as the push-pull rod 37. The docking seat 44 is fixed to the bottom of the first driven rod 43. One end of the docking rod 45 is rotatably connected to the docking seat 44. One end of the linkage rod 46 is rotatably connected to the linkage seat 41, and the other end is rotatably connected to the docking rod 45.

[0025] The linkage drive mechanism 4 also includes a second driven rod 48, a passive bevel gear 49, a linkage bevel gear 410, and a belt 411. The second driven rod 48 is rotatably connected to the top of the fixed frame 42 and is arranged parallel to the transmission rod 2 of the speed regulating mechanism. The passive bevel gear 49 is coaxially fixed to one end of the second driven rod 48. The linkage bevel gear 410 is coaxially fixed to the top of the first driven rod 43 and meshes with the passive bevel gear 49. The belt 411 is arranged between the transmission rod 2 of the speed regulating mechanism and the second driven rod 48.

[0026] It should be noted that, since the existing support structure can only provide physical load-bearing function and lacks an active protection mechanism when the speed exceeds the limit, when the generator shaft speed exceeds the safety threshold, it cannot trigger automatic braking or dynamically adjust the braking force, resulting in a significant increase in the risk of motor overspeed damage. To solve this problem, this solution includes a safety protection mechanism 3 and a linkage drive mechanism 4. The speed regulating mechanism transmission rod 2 is driven by the belt 411 to drive the second driven rod 48 synchronously, and the first driven rod 43 is rotated by gear transmission, which in turn drives the docking rod 45 and the linkage rod 46 to centrifugal motion. As the rotational speed increases, the structure generates radial displacement, pushing the wedge block 36 to move axially, causing the two brake pads 34 to form a clamping force and abut against the brake disc 31. This structure is automatically triggered when the rotational speed exceeds the limit, and the centrifugal force is proportional to the rotational speed. The displacement of the wedge block 36 increases linearly with the increase of rotational speed, and the pressure of the brake pads 34 increases synchronously, achieving precise matching between braking torque and rotational speed. Through the linkage of the safety protection mechanism 3 and the linkage drive mechanism 4, the speed of the speed regulating mechanism transmission rod 2 is adaptively adjusted, breaking through the single-function limitation of traditional support devices, combining structural support and speed protection into one, and avoiding equipment damage caused by overspeed.

[0027] Specifically, in this embodiment, the solution mainly includes a support base 1, a speed regulating mechanism transmission rod 2, a safety protection mechanism 3, and a linkage drive mechanism 4. During operation, the speed regulating mechanism transmission rod 2 drives the second driven rod 48 synchronously via the belt 411. The second driven rod 48 drives the passive bevel gear 49 to rotate and drives the linkage bevel gear 410 to mesh and link, thereby causing the first driven rod 43 to rotate and drive the docking rod 45, the linkage rod 46, and the counterweight ball 47 to move centrifugally. The centrifugal motion generates radial displacement, and the wedge block 36 is pulled axially through the linkage base 41 and the push-pull rod 37 to abut against the abutment end 35, causing the linkage plate 33 to drive the brake pad 34 to move. The clamping force formed by the two brake pads 34 abutting against the brake disc 31 can realize the automatic control of the speed of the speed regulating mechanism transmission rod 2.

[0028] In a further preferred embodiment of this utility model, such as Figure 1-4 As shown, a counterweight ball 47 is fixed to the other end of the connecting rod 45, and two sets of the overall structure composed of the connecting rod 45, the linkage rod 46 and the counterweight ball 47 are symmetrically arranged.

[0029] In this embodiment, the counterweight ball 47 is provided so that the centrifugal force generated by the docking seat 44 and the docking rod 45 during centrifugal motion can drive the linkage seat 41 to undergo axial displacement.

[0030] In a further preferred embodiment of this utility model, such as Figure 1-4 As shown, the other end of the second driven rod 48 and the transmission rod 2 of the speed regulating mechanism are both coaxially fixed with pulleys 412, and belts 411 are arranged between two adjacent pulleys 412.

[0031] In this embodiment, the belt 411 is limited by the belt pulley 412.

[0032] In a further preferred embodiment of this utility model, such as Figure 1-4 As shown, a torsion spring 38 is fitted on the support rod 32. One end of the torsion spring 38 is fixed to the support rod 32, and the other end is fixed to the linkage plate 33.

[0033] In this embodiment, the spring force of the torsion spring 38 enables the linkage plate 33 to quickly reset and the brake pad 34 to quickly separate from the brake disc 31.

[0034] It should be noted that, for the sake of simplicity, the foregoing embodiments are all described as a series of actions. However, those skilled in the art should understand that the present invention is not limited to the described order of actions, as some steps may be performed in other orders or simultaneously according to the present invention. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions and modules involved are not necessarily essential to the present invention.

[0035] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative. For instance, the division of units described above may be implemented in other ways in practice. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0036] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A safety support device for a speed regulating mechanism of a new energy power generation system, characterized in that, include: The support base (1), the speed regulating mechanism transmission rod (2), the safety protection mechanism (3) and the linkage drive mechanism (4) are provided. The support base (1) has an installation cavity inside. The speed regulating mechanism transmission rod (2) is rotatably connected to the support base (1) through a bearing. The safety protection mechanism (3) is set in the installation cavity. The linkage drive mechanism (4) is set on the top of the support base (1). The safety protection mechanism (3) includes a brake disc (31), a support rod (32), a linkage plate (33), brake pads (34), an abutment end (35), a wedge block (36), and a push-pull rod (37). The brake disc (31) is coaxially fixed on the transmission rod (2) of the speed regulating mechanism and is located in the mounting cavity. The support rod (32) is horizontally fixed in the mounting cavity and is located above the brake disc (31). The linkage plate (33) is rotatably connected to the support rod (32). There are two symmetrically arranged brake discs (31) located between two linkage plates (33), brake pads (34) fixed on the linkage plate (33) on the side near the brake disc (31), the abutting end (35) is located at the top of the linkage plate (33) and has an inclined structure, the push-pull rod (37) is slidably connected to the top of the support base (1), and the wedge block (36) is fixed to the bottom of the push-pull rod (37) and slidably abuts between two adjacent abutting ends (35); The linkage drive mechanism (4) includes a linkage seat (41), a fixed frame (42), a first driven rod (43), a docking seat (44), a docking rod (45), and a linkage rod (46). The linkage seat (41) is rotatably connected to the top of the push-pull rod (37). The fixed frame (42) is fixed above the support seat (1). The first driven rod (43) is rotatably connected to the top center of the fixed frame (42) and is located on the same axis as the push-pull rod (37). The docking seat (44) is fixed to the bottom of the first driven rod (43). One end of the docking rod (45) is rotatably connected to the docking seat (44). One end of the linkage rod (46) is rotatably connected to the linkage seat (41), and the other end is rotatably connected to the docking rod (45).

2. The safety support device for the speed regulation mechanism of a new energy power generation system as described in claim 1, characterized in that, The other end of the connecting rod (45) is fixed with a counterweight ball (47), and the overall structure composed of the connecting rod (45), the linkage rod (46) and the counterweight ball (47) is symmetrically arranged in two sets.

3. The safety support device for the speed regulation mechanism of a new energy power generation system as described in claim 2, characterized in that, The linkage drive mechanism (4) further includes a second driven rod (48), a passive bevel gear (49), a linkage bevel gear (410), and a belt (411). The second driven rod (48) is rotatably connected to the top of the fixed frame (42) and is arranged parallel to the speed regulating mechanism transmission rod (2). The passive bevel gear (49) is coaxially fixed to one end of the second driven rod (48). The linkage bevel gear (410) is coaxially fixed to the top of the first driven rod (43) and meshes with the passive bevel gear (49). The belt (411) is arranged between the speed regulating mechanism transmission rod (2) and the second driven rod (48).

4. The safety support device for the speed regulation mechanism of a new energy power generation system as described in claim 3, characterized in that, The other end of the second driven rod (48) and the transmission rod (2) of the speed regulating mechanism are both coaxially fixed with pulleys (412), and the belt (411) is arranged between two adjacent pulleys (412).

5. The safety support device for the speed regulation mechanism of a new energy power generation system as described in claim 1, characterized in that, A torsion spring (38) is fitted on the support rod (32). One end of the torsion spring (38) is fixed to the support rod (32), and the other end is fixed to the linkage plate (33).

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