A kind of anti-swing structure

Abstract

The utility model belongs to the technical field of engineering machinery, concretely relates to a kind of anti-swing structure, and it includes: anti-swing frame assembly and arc limit plate, anti-swing frame assembly is installed on the working arm of operation equipment, and the upper end of power head assembly is connected to the upper end of anti-swing frame assembly;Arc limit plate is set to the lower end of anti-swing frame assembly, and arc limit plate has a arc limit surface, the projection of arc limit surface in first plane is arc, and arc limit surface is formed by stretching arc along the direction perpendicular to first plane, and arc is inferior arc, the outside wall of power head assembly can be abutted on arc limit surface, and arc limit surface is matched with the outside wall of power head assembly.The utility model plays the connecting effect by anti-swing frame assembly, and by the matching of arc limit surface and power head outside wall, the radial movement of power head can be constrained from circumferential direction, play the anti-swing effect, and the arc of arc limit plate is inferior arc, not complete circularly surrounds power head assembly, reserves rotating space, avoids jamming.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to an anti-sway structure. Background Technology

[0002] In the field of engineering machinery, especially in scenarios such as rock and soil drilling and foundation construction, drilling rigs, excavators and other operating equipment rely on drill rods to complete core construction tasks such as drilling and pile driving. Among them, the power head assembly, as a key functional component that drives the rotation of the drill rod and realizes the feeding action, directly determines the drilling accuracy, construction efficiency and equipment operation safety through its connection stability with the operating equipment and its adaptability to multiple working conditions.

[0003] Currently, existing assembly schemes for power head assemblies mostly employ rigid brackets and flange connections to directly fix the power head assembly to the machine body, boom, or dedicated rails of the drilling equipment. However, in recent years, to adapt to complex construction needs, the connection method between the power head assembly and the working arm of the drilling equipment has been improved—adopting a hinged connection. This hinged structure significantly improves the degree of freedom of movement of the power head assembly, flexibly adapting to drilling operations at various angles.

[0004] However, if existing rigid supports and flange connections are used for this type of articulated connection structure, it would restrict the overall freedom of motion of the power head, contradicting the original intention of the articulated design. Therefore, designing a structure that effectively prevents the power head assembly from swaying when drilling vertical holes without interfering with its normal rotation function has become a critical problem that urgently needs to be solved in the industry. Utility Model Content

[0005] The technical problem to be solved by this utility model is: In order to solve the technical problems in the prior art, this utility model provides an anti-sway structure that can effectively prevent the power head assembly from swaying when drilling vertical holes, without interfering with its normal rotation function.

[0006] The technical solution adopted by this utility model to solve its technical problem is: an anti-sway structure for installing a power head assembly, comprising: an anti-sway frame assembly and an arc-shaped limiting plate. The anti-sway frame assembly is mounted on the working arm of the operating equipment, and the upper end of the power head assembly is connected to the upper end of the anti-sway frame assembly; The arc-shaped limiting plate is disposed at the lower end of the anti-sway frame assembly. The arc-shaped limiting plate has an arc-shaped limiting surface. The projection of the arc-shaped limiting surface onto the first plane is arc-shaped. The arc-shaped limiting surface is formed by stretching along a direction perpendicular to the first plane. The arc-shaped limiting surface is a minor arc. The outer wall of the power head assembly can abut against the arc-shaped limiting surface. The arc-shaped limiting surface matches the outer wall of the power head assembly.

[0007] The specific technical effects are as follows: the anti-sway frame assembly plays a major connecting role through its fixed assembly with the working arm of the operating equipment and its connection with the upper end of the power head assembly. The arc-shaped limiting plate does not obstruct the free feed of the drill rod in the vertical direction, but only restricts radial sway. By matching the arc-shaped limiting surface with the outer wall of the power head, it can restrict the radial movement of the power head in the circumferential direction. Furthermore, the arc-shaped limiting plate is formed by stretching and has a certain height. During the relocation and transportation of the operating equipment, the arc-shaped limiting plate can support the power head assembly and prevent it from shaking significantly during transportation, thus preventing damage. The arc of the limiting plate is a minor arc, rather than a complete circle, surrounding the power head assembly, leaving room for rotation and preventing jamming.

[0008] Furthermore, the arc length ranges from 1 / 3 to 1 / 2 of the outer perimeter of the contact point between the power head assembly and the arc-shaped limiting surface.

[0009] The specific technical effect is that the arc length range of the arc is designed in this way, which ensures that the power head assembly will not get stuck and can meet the limit requirements to avoid swinging.

[0010] Furthermore, the projection of the arc-shaped limiting plate onto the first plane is a fan-shaped annular structure, and the fan-shaped annular structure is stretched in a direction perpendicular to the first plane to form the arc-shaped limiting plate. The outer wall of the arc-shaped limiting plate is connected to the lower end of the anti-sway frame assembly, and the inner wall of the arc-shaped limiting plate is the arc-shaped limiting surface.

[0011] Furthermore, the anti-sway structure also includes a shock-absorbing pad, which is located between the arc-shaped limiting surface and the outer wall of the power head assembly. The inner wall of the shock-absorbing pad matches the outer wall of the power head assembly, and the outer wall of the shock-absorbing pad matches the arc-shaped limiting surface.

[0012] The specific technical effect is that the shock-absorbing pad is used to reduce the vibration and impact between the power head assembly and the anti-sway frame assembly.

[0013] Furthermore, the shock-absorbing pad includes a pad body, an upper convex edge, and a lower convex edge. The projection of the pad body onto the first plane is a fan-shaped ring. The fan-shaped ring is stretched in a direction perpendicular to the first plane to form the pad body. The pad body is located between the arc-shaped limiting surface and the outer wall of the power head assembly. The upper convex edge and the lower convex edge are respectively connected to the upper and lower ends of the pad body and both protrude to the outside of the pad body. The upper convex edge abuts against the upper end surface of the arc-shaped limiting plate, and the lower convex edge abuts against the lower end surface of the arc-shaped limiting plate.

[0014] The specific technical effect is that by setting the upper and lower convex edges, they can abut against the upper and lower end surfaces of the arc-shaped limiting plate, forming a limit in the vertical direction to prevent detachment. Furthermore, this connection method facilitates the replacement of the shock-absorbing pad.

[0015] Furthermore, the shock-absorbing pad also includes an upper stop edge and a lower stop edge. The upper stop edge is connected to the upper convex edge and abuts against the outer wall of the arc-shaped limiting plate. The lower stop edge is connected to the lower convex edge and abuts against the outer wall of the arc-shaped limiting plate. The upper stop edge extends toward the lower stop edge, and the lower stop edge extends toward the upper stop edge.

[0016] The specific technical effect is as follows: by setting the upper stop edge, a limiting space is formed with the upper convex edge and the upper end of the pad body, which can lock the upper end of the arc limiting plate. By setting the lower stop edge, a limiting space is formed with the lower convex edge and the lower end of the pad body, which can lock the lower end of the arc limiting plate. It plays a limiting role in the vertical and radial directions, further preventing the shock-absorbing pad from falling off.

[0017] Furthermore, the anti-sway frame assembly includes two main boards and two limiting fixing plates. The two main boards are arranged opposite each other, forming a first installation space between them. The upper end of the power head assembly is located in the first installation space and connected to the main boards. Each limiting fixing plate is connected to the outer wall of the lower end of one of the main boards. An installation space for installing an arc-shaped limiting plate is formed between the two limiting fixing plates. The outer wall of the arc-shaped limiting plate is connected to the two main boards and the two limiting fixing plates.

[0018] Furthermore, the anti-sway structure also includes a clamping ring, and clamping blocks are respectively provided at both ends of the arc-shaped limiting plate. The clamping ring and the arc-shaped limiting plate are respectively located on both sides of the outer side wall of the power head assembly. The clamping ring and the arc-shaped limiting plate together form a clamping space, and the power head assembly is located in the clamping space. Both ends of the clamping ring are respectively connected to the clamping blocks.

[0019] The specific technical effect is as follows: In the case where the working arm of the working equipment drives the entire anti-sway structure and the power head assembly to drill at an angle or horizontally and the upper end of the power head assembly does not need to rotate, in order to ensure that the power head assembly will not swing, a clamping ring and an arc-shaped limiting plate are set to form a clamping space, which forms an anti-sway limit around the circumference of the power head assembly.

[0020] Furthermore, the clamping ring includes a fixed ring and two clamping blocks, which are respectively installed on both ends of the fixed ring. Each clamping block is connected to a clamping fixed block, and the fixed ring is arranged in an arc shape to surround the outer wall of the power head assembly.

[0021] The specific technical effect is that the clamping block enhances the connection rigidity, achieves precise docking, and further improves the anti-sway effect.

[0022] Furthermore, the fixing ring includes an arc portion and two straight edges. The arc portion matches the outer wall of the power head assembly. The two straight edges are respectively installed on the two ends of the arc portion. Each clamping block is welded to a straight edge. Each clamping block has two mounting holes for mounting bolts. The two mounting holes are arranged in a vertical direction. The clamping block and the clamping fixing block are fixed by bolts.

[0023] Compared with the prior art, the beneficial effects of this utility model are: (1) The anti-sway frame assembly of this utility model plays a major connecting role by fixing and assembling with the working arm of the working equipment and connecting with the upper end of the power head assembly. The arc limit plate does not hinder the free feed of the drill rod in the vertical direction, but only restricts the radial swing. (2) This utility model can constrain the radial movement of the power head from the circumferential direction by matching the arc-shaped limiting surface with the outer wall of the power head. In addition, the arc-shaped limiting plate is formed by stretching and has a certain height. During the relocation and transportation of the work equipment, the arc-shaped limiting plate can support the power head assembly and prevent it from shaking significantly during transportation, which would cause damage. (3) The arc of the arc limiting plate of this utility model is a minor arc, rather than a complete circle that surrounds the power head assembly, leaving room for rotation and avoiding jamming. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a schematic diagram of an anti-sway structure according to Embodiment 1 of this utility model.

[0026] Figure 2 This is a schematic diagram of the shock-absorbing pad in Embodiment 2 of this utility model.

[0027] Figure 3 This is a schematic diagram of the shock-absorbing pad in Embodiment 3 of this utility model.

[0028] Figure 4 This is a schematic diagram of an anti-sway structure according to Embodiment 4 of this utility model.

[0029] Figure 5 This is a schematic diagram of the clamping ring in Embodiment 4 of this utility model.

[0030] In the diagram: 1. Anti-sway frame assembly; 101. Main board; 102. Limiting and fixing plate; 103. Clamping and fixing block; 2. Arc-shaped limiting plate; 201. Arc-shaped limiting surface; 3. Power head assembly; 4. Shock-absorbing pad; 401. Pad body; 402. Upper convex edge; 403. Lower convex edge; 404. Upper stop edge; 405. Lower stop edge; 5. Clamping ring; 501. Fixing ring; 502. Clamping block; 503. Mounting hole. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not 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. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] like Figure 1The diagram shows a preferred embodiment of the present invention, a sway-prevention structure for mounting a power head assembly 3. It includes an anti-sway frame assembly 1 and an arc-shaped limiting plate 2. The anti-sway frame assembly 1 is mounted on the working arm of the operating equipment. Specifically, the anti-sway frame assembly 1 can be mounted on the connecting bracket of the working arm of the operating equipment. The upper end of the power head assembly 3 is connected to the upper end of the anti-sway frame assembly 1. The arc-shaped limiting plate 2 is disposed at the lower end of the anti-sway frame assembly 1. The arc-shaped limiting plate 2 has an arc-shaped limiting surface 201. The projection of the arc-shaped limiting surface 201 onto the first plane is arc-shaped. The arc is stretched along a direction perpendicular to the first plane to form the arc-shaped limiting surface 201. The arc is a minor arc. The outer wall of the power head assembly 3 can abut against the arc-shaped limiting surface 201, and the arc-shaped limiting surface 201 matches the outer wall of the power head assembly 3. Specifically, the first plane is a horizontal plane.

[0035] Specifically, when the power head assembly 3 needs to rotate at a specific angle according to construction needs, the upper end of the power head assembly 3 is hinged to the upper end of the anti-sway frame assembly 1. The arc-shaped limiting plate 2 with a slight arc design forms an open area, which provides space for the rotation of the power head assembly 3 and will not be blocked by the completely circular limiting surface. This ensures that the power head assembly 3 can smoothly complete the angle adjustment, such as the rotation action when switching from vertical hole to inclined hole operation, thereby realizing multi-angle operation adjustment and no longer being limited to vertical drilling construction.

[0036] In this embodiment, the arc length ranges from 1 / 3 to 1 / 2 of the outer perimeter of the contact point between the power head assembly 3 and the arc-shaped limiting surface 201.

[0037] Therefore, the arc length range of the arc is designed in this way to ensure that the power head assembly 3 will not get stuck, while also meeting the limit requirements to prevent swaying.

[0038] In this embodiment, the projection of the arc-shaped limiting plate 2 onto the first plane is a fan-shaped ring structure. The fan-shaped ring structure is stretched along a direction perpendicular to the first plane to form the arc-shaped limiting plate 2. The outer wall of the arc-shaped limiting plate 2 is connected to the lower end of the anti-sway frame assembly 1. The inner wall of the arc-shaped limiting plate 2 is an arc-shaped limiting surface 201.

[0039] In this embodiment, the anti-sway frame assembly 1 includes two main boards 101 and two limiting fixing plates 102. The two main boards 101 are arranged opposite to each other, and a first installation space is formed between the two main boards 101. The upper end of the power head assembly 3 is disposed in the first installation space and connected to the main board 101. Each limiting fixing plate 102 is welded to the outer wall of the lower end of one main board 101. An installation space for installing an arc-shaped limiting plate 2 is formed between the two limiting fixing plates 102. The outer wall of the arc-shaped limiting plate 2 is connected to the two main boards 101 and the two limiting fixing plates 102.

[0040] Example 2 differs from Example 1 in that: In this embodiment, the anti-sway structure also includes a shock-absorbing pad 4, which is located between the arc-shaped limiting surface 201 and the outer wall of the power head assembly 3. The inner wall of the shock-absorbing pad 4 matches the outer wall of the power head assembly 3, and the outer wall of the shock-absorbing pad 4 matches the arc-shaped limiting surface 201.

[0041] Therefore, the shock-absorbing pad 4 is used to reduce the vibration and impact between the power head assembly 3 and the anti-sway frame assembly 1. Especially when the power head assembly 3 needs to rotate at a specific angle according to the construction needs, the power head assembly 3 and the arc limit plate 2 are frequently separated and engaged, which can easily generate large vibrations and collision noise during contact.

[0042] Specifically, the shock-absorbing pad 4 is made of rubber.

[0043] In this embodiment, the shock-absorbing pad 4 is connected to the arc-shaped limiting plate 2 by screws, and the shock-absorbing pad 4 is bonded to the arc-shaped limiting plate 2 by hot melt adhesive or adhesive structure.

[0044] Therefore, by using screw connections and other fixing methods such as adhesive bonding, the shock-absorbing pad 4 is prevented from falling off.

[0045] like Figure 2 As shown, in a preferred embodiment, the shock-absorbing pad 4 includes a pad body 401, an upper convex edge 402, and a lower convex edge 403. The projection of the pad body 401 onto the first plane is a fan-shaped ring. The fan-shaped ring is stretched in a direction perpendicular to the first plane to form the pad body 401. The pad body 401 is located between the arc-shaped limiting surface 201 and the outer wall of the power head assembly 3. The upper convex edge 402 and the lower convex edge 403 are respectively connected to the upper end and the lower end of the pad body 401, and both protrude to the outside of the pad body 401. The upper convex edge 402 abuts against the upper end surface of the arc-shaped limiting plate 2, and the lower convex edge 403 abuts against the lower end surface of the arc-shaped limiting plate 2.

[0046] Therefore, by setting the upper convex edge 402 and the lower convex edge 403, they can abut against the upper and lower end surfaces of the arc-shaped limiting plate 2, forming a limit in the vertical direction to prevent detachment. Furthermore, this connection method facilitates the replacement of the shock-absorbing pad 4.

[0047] Example 3, as Figure 3 As shown, the difference from Example 2 is that: In this embodiment, the shock-absorbing pad 4 further includes an upper stop 404 and a lower stop 405. The upper stop 404 is connected to the upper convex edge 402 and abuts against the outer wall of the arc-shaped limiting plate 2. The lower stop 405 is connected to the lower convex edge 403 and abuts against the outer wall of the arc-shaped limiting plate 2. The upper stop 404 extends toward the lower stop 405, and the lower stop 405 extends toward the upper stop 404.

[0048] Therefore, by setting the upper stop 404, a limiting space is formed with the upper convex edge 402 and the upper end of the pad body 401, which can lock the upper end of the arc limiting plate 2. By setting the lower stop 405, a limiting space is formed with the lower convex edge 403 and the lower end of the pad body 401, which can lock the lower end of the arc limiting plate 2. This plays a limiting role in the vertical and radial directions, further preventing the shock-absorbing pad 4 from falling off.

[0049] Example 4, as Figures 4 to 5 As shown, the difference from Example 2 is that: In this embodiment, the anti-sway structure also includes a clamping ring 5. The two ends of the arc-shaped limiting plate 2 are respectively provided with clamping and fixing blocks 103. The clamping ring 5 and the arc-shaped limiting plate 2 are respectively located on both sides of the outer side wall of the power head assembly 3. The clamping ring 5 and the arc-shaped limiting plate 2 together form a clamping space. The power head assembly 3 is located in the clamping space. The two ends of the clamping ring 5 are respectively connected to the clamping and fixing blocks 103.

[0050] It should be noted that the clamping ring 5 can be configured according to construction needs, especially for situations where the working arm of the operating equipment drives the entire anti-sway structure and the power head assembly 3 to tilt or horizontally drill holes, and the upper end of the power head assembly 3 does not need to rotate. Because the working arm of the operating equipment has been adjusted to the target angle, the power head assembly 3 only needs to maintain a fixed angle to complete the drilling. In order to ensure that the power head assembly 3 maintains a fixed angle and does not swing, the clamping ring 5 and the arc-shaped limiting plate 2 are set to form a clamping space, which forms an anti-sway limit for the circumference of the power head assembly 3. If only a single arc-shaped limiting plate 2 is used, it can only cover a part of the outer wall of the power head assembly 3. When drilling at an angle or horizontally, the power head assembly 3 is prone to radial movement from the opening area of ​​the inferior arc due to the change in the direction of gravity (for example, when drilling horizontally, the power head assembly 3 may swing to the side away from the arc-shaped limiting plate 2, or when drilling horizontally, the side of the power head assembly 3 without the arc-shaped limiting plate 2 is facing down). The enclosing structure of the clamping ring 5 and the arc-shaped limiting plate 2 can form a full circumference constraint.

[0051] In this embodiment, the clamping ring 5 includes a fixing ring 501 and two clamping blocks 502. The two clamping blocks 502 are respectively installed on both ends of the fixing ring 501. Each clamping block 502 is connected to a clamping fixing block 103. The fixing ring 501 is arranged in an arc shape to surround the outer wall of the power head assembly 3.

[0052] Therefore, by using clamping block 502 to enhance connection rigidity, precise docking is achieved, further improving the anti-sway effect.

[0053] Specifically, the fixing ring 501 includes an arc portion and two straight edges. The arc portion matches the outer wall of the power head assembly 3. The two straight edges are respectively installed on the two ends of the arc portion. Each clamping block 502 is welded to a straight edge. Each clamping block 502 has two mounting holes 503 for mounting bolts. The two mounting holes 503 are arranged in a vertical direction. The clamping block 502 is fixed to the clamping fixing block 103 by bolts. The arc portion can adapt to the outer wall of the power head assembly 3 to avoid swinging. The straight edges extend the two ends of the arc portion, which facilitates the connection and fixation of the clamping block 502 and the clamping fixing block 103.

[0054] The above description is based on the preferred embodiments of this utility model. Through the above description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined by the scope of the claims.

Claims

1. An anti-sway structure for mounting a power head assembly (3), characterized in that, include: Anti-sway frame assembly (1) and arc-shaped limiting plate (2), The anti-sway frame assembly (1) is installed on the working arm of the working equipment, and the upper end of the power head assembly (3) is connected to the upper end of the anti-sway frame assembly (1); The arc-shaped limiting plate (2) is disposed at the lower end of the anti-sway frame assembly (1). The arc-shaped limiting plate (2) has an arc-shaped limiting surface (201). The projection of the arc-shaped limiting surface (201) onto the first plane is arc-shaped. The arc is stretched along a direction perpendicular to the first plane to form the arc-shaped limiting surface (201). The arc is a minor arc. The outer wall of the power head assembly (3) can abut against the arc-shaped limiting surface (201). The arc-shaped limiting surface (201) matches the outer wall of the power head assembly (3).

2. A pendulum suppression structure according to claim 1, wherein The anti-sway structure also includes a clamping ring (5). The two ends of the arc-shaped limiting plate (2) are respectively provided with clamping and fixing blocks (103). The clamping ring (5) and the arc-shaped limiting plate (2) are respectively located on both sides of the outer side wall of the power head assembly (3). The clamping ring (5) and the arc-shaped limiting plate (2) together form a clamping space. The power head assembly (3) is located in the clamping space. The two ends of the clamping ring (5) are respectively connected to the clamping and fixing blocks (103).

3. A pendulum suppression structure according to claim 2, wherein The clamping ring (5) includes a fixing ring (501) and two clamping blocks (502). The two clamping blocks (502) are respectively installed on both ends of the fixing ring (501). Each clamping block (502) is connected to a clamping fixing block (103). The fixing ring (501) is arranged in an arc shape to surround the outer wall of the power head assembly (3).

4. The anti-sway structure as described in claim 3, characterized in that, The fixing ring (501) includes an arc portion and two straight edges. The arc portion matches the outer wall of the power head assembly (3). The two straight edges are respectively installed on the two ends of the arc portion. Each clamping block (502) is welded to a straight edge. Each clamping block (502) has two mounting holes (503) for mounting bolts. The two mounting holes (503) are arranged in a vertical direction. The clamping block (502) and the clamping fixing block (103) are fixed by bolts.

5. The anti-sway structure as described in claim 1, characterized in that, The arc length ranges from 1 / 3 to 1 / 2 of the outer perimeter of the contact point between the power head assembly (3) and the arc-shaped limiting surface (201).

6. A pendulum suppression structure as claimed in claim 1, wherein The arc-shaped limiting plate (2) is projected onto the first plane in the form of a fan-shaped ring structure. The fan-shaped ring structure is stretched in a direction perpendicular to the first plane to form the arc-shaped limiting plate (2). The outer wall of the arc-shaped limiting plate (2) is connected to the lower end of the anti-sway frame assembly (1). The inner wall of the arc-shaped limiting plate (2) is the arc-shaped limiting surface (201).

7. The anti-sway structure as described in claim 6, characterized in that, The anti-sway structure also includes a shock-absorbing pad (4), which is located between the arc-shaped limiting surface (201) and the outer wall of the power head assembly (3). The inner wall of the shock-absorbing pad (4) matches the outer wall of the power head assembly (3), and the outer wall of the shock-absorbing pad (4) matches the arc-shaped limiting surface (201).

8. The anti-sway structure as described in claim 7, characterized in that, The shock-absorbing pad (4) includes a pad body (401), an upper convex edge (402), and a lower convex edge (403). The projection of the pad body (401) onto the first plane is a fan-shaped ring. The fan-shaped ring is stretched in a direction perpendicular to the first plane to form the pad body (401). The pad body (401) is located between the arc-shaped limiting surface (201) and the outer wall of the power head assembly (3). The upper convex edge (402) and the lower convex edge (403) are respectively connected to the upper end and the lower end of the pad body (401) and both protrude to the outside of the pad body (401). The upper convex edge (402) abuts against the upper end surface of the arc-shaped limiting plate (2), and the lower convex edge (403) abuts against the lower end surface of the arc-shaped limiting plate (2).

9. The anti-sway structure as described in claim 8, characterized in that, The shock-absorbing pad (4) further includes an upper stop (404) and a lower stop (405). The upper stop (404) is connected to the upper convex edge (402) and abuts against the outer wall of the arc-shaped limiting plate (2). The lower stop (405) is connected to the lower convex edge (403) and abuts against the outer wall of the arc-shaped limiting plate (2). The upper stop (404) extends toward the lower stop (405), and the lower stop (405) extends toward the upper stop (404).

10. The anti-swing structure of claim 1, wherein The anti-sway frame assembly (1) includes two main boards (101) and two limiting fixing plates (102). The two main boards (101) are arranged opposite to each other, and a first installation space is formed between the two main boards (101). The upper end of the power head assembly (3) is arranged in the first installation space and connected to the main board (101). Each of the limiting fixing plates (102) is connected to the outer wall of the lower end of one of the main boards (101). An installation space for installing an arc-shaped limiting plate (2) is formed between the two limiting fixing plates (102). The outer wall of the arc-shaped limiting plate (2) is connected to the two main boards (101) and the two limiting fixing plates (102).

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