Brake structure and silent variable frequency generator set

Abstract

The utility model provides a kind of brake structure and mute variable frequency generator set, brake structure includes brake disc, mounting seat, pin shaft, connecting arm, limit rod, brake arm and tension spring. Multiple limit notches are arranged in annular array along the center of brake disc, connecting arm and brake arm are rotationally arranged on pin shaft around the axis of pin shaft, limit rod is arranged on connecting arm, and limit rod can be clamped into any limit notch. Tension spring is connected with brake arm and limit rod respectively, and tension spring is used to drive limit rod to clamp into or exit limit notch during the rotation of brake arm. When limit rod clamps into limit notch, brake arm and connecting arm have first preset angle in space. When exiting limit notch, brake arm and connecting arm have second preset angle in space. By operating brake arm to rotate, limit rod is driven by tension spring to clamp into or exit limit notch, convenient operation of brake and releasing brake is realized, structure is simple and easy to realize, and reliability and stability of brake can also be improved.

Description

Technical Field

[0001] This utility model relates to the field of generator set technology, specifically to a braking structure and a silent variable frequency generator set. Background Technology

[0002] Currently, silent variable frequency generator sets are widely used due to their advantages such as low noise, stable power supply, and precise frequency regulation. To facilitate the movement and transportation of silent variable frequency generator sets, wheels are usually installed on the generator set frame to enable equipment mobility.

[0003] Most commercially available silent inverter generator sets brake by increasing tire tread friction, such as through a structure where brake pads directly contact the tire tread. However, for large, heavy, high-power silent inverter generator sets, this braking method relying solely on increased tire tread friction has significant limitations. It is prone to failure and cannot effectively brake and secure the generator set. The generator set may slide along slopes, affecting normal equipment operation and potentially causing collision damage, personal injury, and other safety accidents, posing a serious safety hazard. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of this utility model is to provide a braking structure and a silent variable frequency generator set to solve or at least alleviate one or more of the above-mentioned technical problems or other problems existing in the prior art.

[0005] To achieve the above objectives, this utility model provides a brake structure, including a brake disc with multiple limiting notches on its outer periphery, the multiple limiting notches being arranged in a circular array along the center of the brake disc; a mounting base disposed on one side of the brake disc; a pin disposed on the mounting base, the axis of the pin being parallel to the axis of the brake disc; a connecting arm rotatably disposed on the pin about its axis; a limiting rod disposed on the connecting arm, the limiting rod being capable of engaging any of the limiting notches; a brake arm rotatably disposed on the pin about its axis; and a tension spring connecting the brake arm and the limiting rod respectively, the tension spring being used to drive the limiting rod to engage or disengage from the limiting notches during the rotation of the brake arm; when the limiting rod engages in the limiting notch, the brake arm and the connecting arm have a first preset angle in space; when the limiting rod disengages from the limiting notch, the brake arm and the connecting arm have a second preset angle in space.

[0006] Preferably, the brake arm is provided with a connecting post, and the axes of the connecting post, the limiting rod and the pin are arranged in parallel, and the tension spring connects the connecting post and the limiting rod respectively.

[0007] Preferably, the mounting base has an inner cavity, in which the pin, the connecting arm, the brake arm, and the limiting rod are all disposed, and the brake arm and the limiting rod extend out of the mounting base respectively; the connecting column and the tension spring are both disposed outside the mounting base, and the tension spring is located on the side of the mounting base away from the brake disc.

[0008] Preferably, the mounting base is provided with a first clearance hole and two second clearance holes communicating with the inner cavity. The brake arm passes through the first clearance hole, and the two second clearance holes are respectively arranged on both sides of the mounting base. The second clearance holes are arc-shaped, and the two ends of the limiting rod pass through the two second clearance holes respectively.

[0009] Preferably, the mounting base has a shell structure, and the mounting base includes a first shell and a second shell that are fastened together.

[0010] Preferably, one end of the connecting arm is provided with a first connecting head, and one end of the brake arm is provided with a second connecting head, both the first connecting head and the second connecting head being rotatably sleeved on the pin.

[0011] Preferably, both the first preset angle and the second preset angle are obtuse angles.

[0012] Preferably, the opening of the limiting notch gradually increases in the direction away from the center of the brake disc.

[0013] Preferably, the top of the mounting base is provided with a clearance groove.

[0014] This utility model also provides a silent variable frequency generator set, including the above-mentioned braking structure.

[0015] The beneficial effects of this utility model are:

[0016] This utility model discloses a braking structure and a silent variable frequency generator set. By rotating the brake arm, a tension spring drives a limit rod to engage or disengage from a limit notch, enabling convenient braking and deactivation. The structure is simple and easy to implement. When the limit rod engages or disengages from the limit notch, different preset angles are formed between the brake arm and the connecting arm. The angle settings of the first and second preset angles ensure that the tension spring is always under reasonable stress, ensuring stable driving force of the tension spring on the limit rod. This braking structure achieves brake fixation through the engagement of the limit rod with the upper limit notch of the brake disc, acting directly on the brake disc rather than the tire surface. This greatly improves the reliability and stability of the brake, solves the problem of easy failure of existing braking methods on inclined slopes, and significantly enhances the safety of equipment use. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of a brake structure provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure after the limiting rod is inserted into the limiting notch;

[0020] Figure 3 This is a structural diagram showing the concealed mounting base.

[0021] Figure 4 This is a schematic diagram of the structure after the limit rod exits the limit notch;

[0022] Figure 5 This is a schematic diagram of the mounting base.

[0023] Figure 6 This is a schematic diagram of the vehicle in braking mode.

[0024] Figure 7 This is a diagram showing the state after the brakes have been released.

[0025] Figure 8 This is a schematic diagram of the structure with the first preset included angle;

[0026] Figure 9 This is a schematic diagram of the structure for the second preset included angle;

[0027] Figure label:

[0028] 10. Brake disc; 11. Limiting notch; 12. Through hole; 13. Flanged edge; 20. Mounting base; 21. First clearance hole; 22. Second clearance hole; 23. First housing; 24. Second housing; 25. Clearance groove; 30. Pin; 40. Connecting arm; 41. First connector; 50. Limiting rod; 60. Brake arm; 61. Connecting column; 62. Second connector; 70. Tension spring; 80. Traveling wheel; 90. Axle. Detailed Implementation

[0029] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0030] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0031] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0032] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] like Figure 1-9As shown, in one embodiment of this utility model, a brake structure is provided, including a brake disc 10, a mounting base 20, a pin 30, a connecting arm 40, a limiting rod 50, a brake arm 60, and a tension spring 70. The brake disc 10 has a disc structure and concentric through holes 12. The edge of the through holes 12 has a flange 13. The brake disc 10 is sleeved on the inner side of the traveling wheel 80 and is welded and fixed to the traveling wheel 80 by the flange 13. The outer periphery of the brake disc 10 has multiple limiting notches 11, which are arranged in a circular array along the center of the brake disc 10. The mounting base 20 is fixedly mounted on the frame (not shown in the figure) and located on one side of the brake disc 10.

[0036] The pin 30 can be mounted on the mounting base 20 by rotation or fixation, and the axis of the pin 30 is parallel to the axis of the brake disc 10. Both the connecting arm 40 and the brake arm 60 are rotatably mounted on the pin 30 around its axis. The limiting rod 50 is fixed to the connecting arm 40 and can be engaged in either limiting notch 11. A tension spring 70 connects the brake arm 60 and the limiting rod 50, and the tension spring 70 is used to drive the limiting rod 50 into or out of the limiting notch 11 during the rotation of the brake arm 60. (See reference...) Figure 8 When the limiting rod 50 engages with the limiting notch 11, the brake arm 60 and the connecting arm 40 form a first preset angle in space. (See reference...) Figure 9 When the limit rod 50 exits the limit notch 11, the brake arm 60 and the connecting arm 40 have a second preset angle in space.

[0037] Specifically, when braking is required, the brake arm 60 rotates upward around the pin 30. During this process, the tension spring 70 connected to the brake arm 60 is subjected to tension. Since the tension spring 70 is also connected to the limiting rod 50, the tension will drive the limiting rod 50 to rotate around the pin 30 towards the brake disc 10. When the limiting rod 50 rotates to the limiting notch 11 of the brake disc 10, the tension of the tension spring 70 will "pull" the limiting rod 50 into the notch, achieving engagement. The brake disc 10 is locked by the limiting rod 50 and cannot rotate, and the traveling wheel 80 also cannot rotate, thereby restricting the movement of the frame and achieving braking.

[0038] When it is necessary to release the brake, the brake arm 60 is rotated downward around the pin 30. During this process, the tension of the tension spring 70 changes direction, causing the limit rod 50 to rotate around the pin 30 in a direction away from the brake disc 10. This causes the limit rod 50 to retract from the limit notch 11 of the brake disc 10, and the brake disc 10 is no longer restricted. The travel wheel 80 can then resume rotation, thereby releasing the brake.

[0039] This embodiment discloses a braking structure that uses the rotation of the brake arm 60 to cause the tension spring 70 to engage or disengage the limiting rod 50 into the limiting notch 11, achieving convenient braking and deactivation operations. The structure is simple and easy to implement. When the limiting rod 50 engages or disengages from the limiting notch 11, different preset angles are formed between the brake arm 60 and the connecting arm 40. The angle settings of the first and second preset angles ensure that the tension spring 70 is always under reasonable stress, ensuring stable driving force of the tension spring 70 on the limiting rod 50. This braking structure achieves brake fixation through the engagement of the limiting rod 50 with the upper limiting notch 11 of the brake disc 10, directly acting on the brake disc 10 rather than the tire tread of the traveling wheel 80, greatly improving the reliability and stability of the brake, solving the problem of easy failure of existing braking methods on inclined slopes, and significantly improving the safety of equipment use.

[0040] In one embodiment, a connecting post 61 is fixedly mounted on the brake arm 60. The axes of the connecting post 61, the limiting rod 50, and the pin 30 are parallel. A tension spring 70 connects the connecting post 61 and the limiting rod 50 respectively. The connecting post 61 is perpendicular to the brake arm 60, and the limiting rod 50 is perpendicular to the connecting arm 40. This structural design makes the direction of the tension force of the tension spring 70 more matched with the direction of movement of the limiting rod 50. When the tension spring 70 drives the limiting rod 50 to move, it can maximize the conversion of the tension force into the driving force for the limiting rod 50 to engage or disengage from the limiting notch 11.

[0041] Meanwhile, the parallel arrangement of the axes prevents the tension spring 70 from twisting and deforming during operation, avoiding shortened service life or failure caused by the twisting of the tension spring 70, and ensuring the stability and reliability of the tension spring 70. In addition, the setting of the connecting post 61 provides a stable connection point for the connection between the tension spring 70 and the brake arm 60, further enhancing the overall strength and durability of the brake structure.

[0042] In one embodiment, the mounting base 20 has an inner cavity in which the pin 30, connecting arm 40, brake arm 60, and limiting rod 50 are all located, with the connecting arm 40 and limiting rod 50 extending out of the mounting base 20. The connecting post 61 and tension spring 70 are both located outside the mounting base 20, with the tension spring 70 located on the side of the mounting base 20 away from the brake disc 10.

[0043] The pin 30, connecting arm 40, brake arm 60, and limiting rod 50 are housed within the inner cavity, effectively protecting the connection points between the connecting arm 40 and brake arm 60 and the pin 30, ensuring smooth rotation, and extending the service life of the brake structure. The connecting post 61 and tension spring 70 are located outside the mounting base 20, with the tension spring 70 situated on the side of the mounting base 20 away from the brake disc 10. This not only facilitates the installation, replacement, and maintenance of the tension spring 70 but also prevents interference between the tension spring 70 and the brake disc 10, ensuring the normal operation of the tension spring 70. Furthermore, it makes the overall layout more rational and compact.

[0044] In one embodiment, the mounting base 20 is provided with a first clearance hole 21 communicating with the inner cavity and two second clearance holes 22. The brake arm 60 passes through the first clearance hole 21, and the two second clearance holes 22 are respectively arranged on both sides of the mounting base 20. The second clearance holes 22 are arc-shaped, and the two ends of the limiting rod 50 pass through the two second clearance holes 22 respectively.

[0045] The first clearance hole 21 provides the necessary space for the movement of the brake arm 60, ensuring that the brake arm 60 can rotate smoothly around the pin 30 to achieve braking and releasing operations. The two arc-shaped second clearance holes 22 play a precise guiding role for the movement of the limit rod 50. Since the second clearance holes 22 are arc-shaped and match the trajectory of the limit rod 50 rotating around the pin 30, they can ensure that the limit rod 50 always moves smoothly along the preset trajectory during the movement, avoiding deviation or jamming of the limit rod 50, and ensuring that the limit rod 50 can accurately and smoothly engage or disengage from the limit notch 11, further improving the reliability and stability of the brake structure.

[0046] In one embodiment, the mounting base 20 has a shell structure, comprising a first shell 23 and a second shell 24 that snap together. The first shell 23 and the second shell 24 are connected and fixed by two sets of bolts and nuts. This split shell structure design makes the processing and manufacturing of the mounting base 20 simpler, as the first shell 23 and the second shell 24 can be processed separately, reducing processing difficulty and production costs.

[0047] In one embodiment, one end of the connecting arm 40 is provided with a first connecting head 41 fixedly connected thereto, and one end of the brake arm 60 is provided with a second connecting head 62 fixedly connected thereto. Both the first connecting head 41 and the second connecting head 62 are rotatably sleeved on the pin 30. By providing the first connecting head 41 and the second connecting head 62, the contact area between the connecting arm 40, the brake arm 60 and the pin 30 is increased, making the rotation of the connecting arm 40 and the brake arm 60 around the pin 30 more stable, flexible and smooth, reducing rotational resistance, improving the response speed of the brake structure, and extending the service life of the pin 30, the connecting arm 40 and the brake arm 60. At the same time, this structural design also makes the connection between the connecting arm 40 and the brake arm 60 and the pin 30 more firm and reliable, avoiding loosening between the connecting arm 40 or the brake arm 60 and the pin 30 during long-term use, and ensuring the stability of the brake structure operation.

[0048] In one embodiment, both the first and second preset angles are obtuse angles. This structural design ensures that the tension spring 70 is in a reasonable tension state in both braking and de-braking states, preventing the tension spring 70 from losing elasticity due to excessive compression or failing to provide sufficient driving force due to insufficient tension. When the limit rod 50 engages with the limit notch 11 (braking state), the first preset angle allows the tension spring 70 to maintain a certain tension, providing continuous and stable pressure to the limit rod 50, ensuring a firm engagement between the limit rod 50 and the limit notch 11, preventing the limit rod 50 from accidentally disengaging from the limit notch 11 under generator vibration or external force, and ensuring the reliability of the brake.

[0049] When the limit rod 50 exits the limit notch 11 (releasing the brake), the second preset angle keeps the tension spring 70 in a certain tension state, preventing the tension spring 70 from slackening. In this way, when braking is needed again, the tension spring 70 can respond quickly and drive the limit rod 50 to quickly engage the limit notch 11, improving the convenience and timeliness of the braking operation.

[0050] In one embodiment, the opening of the limiting notch 11 gradually increases in the direction away from the center of the brake disc 10. This flared structure design guides the limiting rod 50 during its engagement with the limiting notch 11. Even if there is a certain deviation in the alignment between the limiting rod 50 and the limiting notch 11, it can still slide smoothly into the notch under the guidance of the notch opening, improving the convenience and accuracy of the engagement of the limiting rod 50 and reducing the requirements for operational precision.

[0051] In one embodiment, the top of the mounting base 20 is provided with a relief groove 25, which is used to accommodate the axle 90 connecting the two walking wheels 80, thereby making the overall structure more compact.

[0052] This embodiment also provides a silent variable frequency generator set, including the aforementioned braking structure. Because it employs the aforementioned braking structure, it has the same working principle and technical effects as the braking structure in the above embodiments, and will not be described again here.

[0053] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A braking structure, characterized in that, include: The brake disc (10) has multiple limiting notches (11) on its outer periphery, and the multiple limiting notches (11) are arranged in a ring array along the center of the brake disc (10). Mounting bracket (20) is provided on one side of the brake disc (10); A pin (30) is provided on the mounting base (20), and the axis of the pin (30) is arranged parallel to the axis of the brake disc (10); The connecting arm (40) is rotatably mounted on the pin (30) about the axis of the pin (30); A limiting rod (50) is provided on the connecting arm (40), and the limiting rod (50) can be inserted into any of the limiting notches (11); A brake arm (60) is rotatably mounted on the pin (30) about the axis of the pin (30); and A tension spring (70) is connected to the brake arm (60) and the limiting rod (50) respectively. The tension spring (70) is used to drive the limiting rod (50) to engage or disengage from the limiting notch (11) during the rotation of the brake arm (60). When the limiting rod (50) is inserted into the limiting notch (11), the brake arm (60) and the connecting arm (40) have a first preset angle in space; when the limiting rod (50) is removed from the limiting notch (11), the brake arm (60) and the connecting arm (40) have a second preset angle in space.

2. The brake structure according to claim 1, characterized in that, The brake arm (60) is provided with a connecting post (61), the axes of the connecting post (61), the limiting rod (50) and the pin (30) are arranged in parallel, and the tension spring (70) is connected to the connecting post (61) and the limiting rod (50) respectively.

3. The brake structure according to claim 2, characterized in that, The mounting base (20) has an inner cavity, in which the pin (30), the connecting arm (40), the brake arm (60) and the limiting rod (50) are all located, and the brake arm (60) and the limiting rod (50) extend out of the mounting base (20); the connecting column (61) and the tension spring (70) are both located outside the mounting base (20), and the tension spring (70) is located on the side of the mounting base (20) away from the brake disc (10).

4. The brake structure according to claim 3, characterized in that, The mounting base (20) is provided with a first clearance hole (21) and two second clearance holes (22) communicating with the inner cavity. The brake arm (60) passes through the first clearance hole (21). The two second clearance holes (22) are respectively arranged on both sides of the mounting base (20). The second clearance holes (22) are arc-shaped. The two ends of the limiting rod (50) pass through the two second clearance holes (22) respectively.

5. The brake structure according to claim 3, characterized in that, The mounting base (20) has a shell structure, and the mounting base (20) includes a first shell (23) and a second shell (24) that are fastened together.

6. The brake structure according to claim 1, characterized in that, One end of the connecting arm (40) is provided with a first connector (41), and one end of the brake arm (60) is provided with a second connector (62). Both the first connector (41) and the second connector (62) are rotatably sleeved on the pin (30).

7. The brake structure according to claim 1, characterized in that, Both the first preset angle and the second preset angle are obtuse angles.

8. The brake structure according to claim 1, characterized in that, The opening of the limiting notch (11) gradually increases in the direction away from the center of the brake disc (10).

9. The brake structure according to claim 1, characterized in that, The top of the mounting base (20) is provided with a clearance groove (25).

10. A silent variable frequency generator set, characterized in that, The brake structure includes any one of claims 1 to 9.

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