Grinding mechanism

Abstract

The grinding mechanism comprises a supporting frame and a grinding disc, a connecting pin is arranged on the supporting frame, a lifting lug is arranged at the top of the grinding disc, a vertical long-strip-shaped hole is formed in the lifting lug, the inner diameter of the long-strip-shaped hole is larger than the outer diameter of the connecting pin, and the connecting pin is arranged in the long-strip-shaped hole in a penetrating mode and connected with the long-strip-shaped hole in a sliding mode. The long-strip-shaped holes are formed in the lifting lugs of the millstones, the millstones can move up and down and move back and forth and swing on the supporting frame, the supporting frame is flexibly connected with the millstones, and the millstones are independently suspended on the supporting frame. The position of the millstone can be adjusted at any time according to terrain conditions, so that the millstone is always attached to the ground, the millstone missing phenomenon is avoided, the operation efficiency is improved, and the grinding quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding equipment, in particular to a grinding mechanism. Background Art

[0002] Floor grinders are primarily used for grinding and polishing stone, tile, and concrete floors to enhance their aesthetics, durability, and service life. Existing grinding mechanisms consist of a support frame and a grinding disc mounted on it. However, the disc and support frame are rigidly connected. When the floor is uneven, the disc cannot adhere tightly to the surface. This can lead to missed areas and uneven polishing, resulting in uneven overall floor finish. Utility Model Content

[0003] In view of the above problems, the purpose of the present invention is to provide a grinding mechanism to solve the problem that the existing grinding mechanism may leak during grinding, resulting in uneven overall floor brightness.

[0004] The utility model is achieved in this way:

[0005] A grinding mechanism includes a support frame and a grinding disc. The support frame is provided with a connecting pin. The top of the grinding disc is provided with a lifting ear. The lifting ear is provided with a vertical long hole. The inner diameter of the long hole is larger than the outer diameter of the connecting pin. The connecting pin is inserted into the long hole and is slidably connected to the long hole.

[0006] Furthermore, a connecting hole is provided on the support frame, the connecting hole and the elongated hole are arranged correspondingly, and the connecting pin passes through the connecting hole and the elongated hole in sequence.

[0007] Furthermore, a through hole is formed at one end of the connecting pin away from the supporting frame, and a cotter pin is inserted into the through hole.

[0008] Furthermore, two vertical rods are erected at one end of the support frame, and the outer sliding sleeves of the two vertical rods are provided with connecting components.

[0009] Furthermore, the connecting assembly includes a top plate and a bottom plate arranged parallel to each other, and the top plate and the bottom plate are connected by multiple vertical ribs. Two sleeves are fixedly connected to the top of the ribs. The two sleeves are arranged horizontally and are respectively located at both ends of the top plate. The vertical rod passes through the top plate and the bottom plate.

[0010] Furthermore, a first telescopic device is provided on the support frame, the first telescopic device is vertically arranged, the fixed end of the first telescopic device is fixedly connected to the support frame, and the free end of the first telescopic device extends downward and is connected to a walking wheel.

[0011] Furthermore, a second telescopic device is provided on the support frame, which is tilted. One end of the second telescopic device is hinged to the top of the grinding disc, and the other end of the second telescopic device is hinged to the support frame.

[0012] Furthermore, the first telescopic device and the second telescopic device are any one of a telescopic motor, a hydraulic cylinder or a pneumatic cylinder.

[0013] Furthermore, there are three grinding discs, which are arranged in a triangle shape, and each grinding disc is slidably connected to the support frame via a connecting pin.

[0014] Furthermore, a protective cover is provided above the support frame.

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

[0016] The grinding mechanism of the utility model has long holes on the lifting ears of the grinding disc, which form a flexible connection between the support frame and the grinding disc, and can enable the grinding disc to move up and down, back and forth and swing on the support frame. The grinding disc is independently suspended on the support frame. When the grinding disc is grinding on an inclined or bumpy ground, the grinding disc can adjust its position at any time according to the terrain conditions so that it always fits the ground, avoiding the phenomenon of missing grinding, ensuring the overall brightness and uniformity of the ground, and avoiding secondary rework in case of missing grinding, thereby improving the working efficiency and ensuring the grinding quality.

[0017] When the grinding mechanism of the present invention needs to be transported and transferred, the first telescopic device is extended to drive the traveling wheel to move downward until the bottom of the traveling wheel is lower than the bottom of the grinding disc. The traveling wheel contacts the ground and the grinding disc is lifted, thereby realizing rapid transfer without manual loading and unloading, saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model without the protective cover;

[0020] Figure 3 This is a schematic diagram of the partial connection structure between the grinding disc and the support frame of the utility model Figure 1 ;

[0021] Figure 4 This is a schematic diagram of the partial connection structure between the grinding disc and the support frame of the utility model Figure 2 .

[0022] Description of reference numerals:

[0023] 1. Support frame; 11. Vertical rod; 12. Second ear; 2. Grinding disc; 21. Lifting ear; 211. Long hole; 22. First ear; 3. Connecting pin; 4. Travel wheel; 5. Connecting assembly; 51. Sleeve; 52. Rib plate; 53. Top plate; 54. Bottom plate; 6. Split pin; 7. First telescopic device; 8. Second telescopic device; 9. Protective cover. DETAILED DESCRIPTION

[0024] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] like Figures 1 to 4 The figure shows the grinding mechanism of the present invention, comprising a support frame 1 and a grinding disc 2. The support frame 1 is provided with a connecting pin 3. A lifting lug 21 is provided at the top of the grinding disc 2. The lifting lug 21 defines a vertical elongated hole 211. The inner diameter of the elongated hole 211 is larger than the outer diameter of the connecting pin 3. The connecting pin 3 is inserted into the elongated hole 211 and slidably connected thereto. The support frame 1 defines a connecting hole, which corresponds to the elongated hole 211. The connecting pin 3 passes through the connecting hole and the elongated hole 211 in sequence. A through hole is defined at the end of the connecting pin 3 away from the support frame 1. A cotter pin 6 is inserted into the through hole.

[0026] In this embodiment, there are two lifting ears 21, and both lifting ears 21 are slidably connected to the support frame 1 via the connecting pin 3. Moreover, the elongated hole 211 formed on the lifting ear 21 enables the lifting ear 21, which is mounted on the connecting pin 3, to drive the grinding disc 2 fixed at its bottom to float up and down along the length direction of the elongated hole 211, thereby achieving a flexible connection between the grinding disc 2 and the support frame 1. In addition, since the inner diameter of the elongated hole 211 is larger than the outer diameter of the connecting pin 3, the lifting ear 21 can also move radially along the connecting pin 3 and swing outside the connecting pin 3, thereby enabling the lifting ear 21 to drive the grinding disc 2 to move up and down, back and forth, and swing, so that the grinding disc 2 is independently suspended on the support frame 1. When grinding on a tilted or uneven ground, the grinding disc 2 can be adjusted according to the terrain conditions so that it always fits tightly with the ground, avoiding the phenomenon of missing grinding, ensuring the overall brightness and uniformity of the ground, and avoiding secondary rework in the event of missing grinding, thereby improving work efficiency and ensuring grinding quality.

[0027] like Figure 2As shown, the support frame 1 is welded from rectangular tubes into a frame structure as a load-bearing carrier. Two vertical rods 11 are vertically provided at one end of the support frame 1, and a connecting assembly 5 is provided on the outer sliding sleeve of the two vertical rods 11. The connecting assembly 5 is used to quickly connect the grinding mechanism to the driving assembly that drives it to move. The driving assembly can be any vehicle body with a mobile function and is not limited here. The connecting assembly 5 includes a top plate 53 and a bottom plate 54 arranged in parallel up and down, and the top plate 53 and the bottom plate 54 are connected by a plurality of vertical ribs 52. Two sleeves 51 are fixedly connected to the top of the rib 52. Specifically, an arc-shaped groove is provided on the top of the rib 52. The shape and size of the arc-shaped groove are adapted to the sleeve 51 so that the sleeve 51 is fixedly clamped in the arc-shaped groove. The two sleeves 51 are arranged horizontally and are respectively located at the two ends of the top plate 53. The vertical rods 11 pass through the top plate 53 and the bottom plate 54 and are slidably connected thereto. This arrangement creates a sliding connection between the support frame 1 and the connecting assembly 5, enabling relative vertical movement of the two components. This, in turn, allows the grinding disc 2 connected to the support frame 1 to move up and down relative to the connecting assembly 5. When the ground has a large height difference, the vertical movement of the grinding disc 2 drives the support frame 1 up and down relative to the connecting assembly 5. The vertical rod 11 acts as a guide, allowing the support frame 1 to drive the grinding disc 2 up and down vertically to adapt to terrain with large height differences.

[0028] The grinding disc 2 is used to grind the ground. The grinding disc 2 is driven by a driving motor (not shown in the figure). A cover is provided on the outside of the grinding disc 2. The grinding disc 2 belongs to the prior art. Its specific structure and working principle are not described here. The number of grinding discs 2 can be set according to actual needs. It can be one, two or more, etc., which is not limited here and falls within the scope of protection of the present utility model. In this embodiment, if Figure 1 and Figure 2 As shown, there are three grinding discs 2, which are arranged in a triangle. Each grinding disc 2 is slidably connected to the support frame 1 through a connecting pin 3. Each grinding disc 2 is independently suspended from the support frame 1. Each grinding disc 2 is in close contact with the ground to better grind complex terrain and avoid missing grinding in some places.

[0029] like Figure 2As shown, a first telescopic device 7 is provided on the support frame 1. The first telescopic device 7 is vertically arranged, and the fixed end of the first telescopic device 7 is fixedly connected to the support frame 1. The free end of the first telescopic device 7 extends downward and is connected to the travel wheel 4. The first telescopic device 7 is extended to drive the travel wheel 4 to move downward in the vertical direction, and the first telescopic device 7 is retracted to drive the travel wheel 4 to move upward in the vertical direction. When the grinding mechanism needs to be transported to a new location, the first telescopic device 7 is extended to drive the travel wheel 4 to move downward until the bottom of the travel wheel 4 is lower than the bottom of the grinding disc 2. The travel wheel 4 contacts the ground and the grinding disc 2 is lifted. The grinding mechanism is moved by the travel wheel 4, and no manual loading and unloading is required, saving manpower.

[0030] like Figure 2 As shown, the support frame 1 is also provided with a second telescopic device 8. The second telescopic device 8 is arranged at an angle. One end of the second telescopic device 8 is hinged to the first support ear 22 provided on the top of the grinding disc 2, and the other end of the second telescopic device 8 is hinged to the second support ear 12 provided on the support frame 1. The second telescopic device 8 is extended to drive the grinding disc 2 to flip, causing the grinding disc 2 to flip upward, making it easier for users to replace the grinding discs and facilitating daily maintenance and repair. The first telescopic device 7 and the second telescopic device 8 can be any one of a telescopic motor, a hydraulic cylinder, or a pneumatic cylinder, as long as they have a telescopic function, and are not limited here.

[0031] like Figure 1 As shown, a protective cover 9 is provided above the support frame 1 to protect the first telescopic device 7 and the second telescopic device 8 provided on the support frame 1 from being soaked by rainwater and affecting their service life.

[0032] The grinding mechanism of the present invention is configured such that when it is necessary to transport the grinding mechanism, the first telescopic device 7 is extended, and the first telescopic device 7 drives the running wheel 4 to descend until the bottom of the running wheel 4 contacts the ground. At this time, the grinding disc 2 is lifted, and there is a certain height between the bottom of the grinding disc 2 and the ground, which is convenient for protecting the grinding disc 2 when the grinding mechanism is transferred and does not require manual loading and unloading, saving manpower. When the grinding mechanism is performing a grinding operation, the first telescopic device 7 contracts and drives the running wheel 4 to move upward until the bottom of the running wheel 4 is flush with the bottom of the grinding disc 2 or slightly higher than the bottom of the grinding disc 2. At this time, the bottom of the grinding disc 2 is in contact with the ground, and the drive motor is started. The drive motor rotates to drive the grinding disc 2 to rotate and grind the ground. When it is necessary to grind low-lying, uneven or inclined ground, since each grinding disc 2 is flexibly connected to the support frame 1 and each grinding disc 2 is independently suspended from the support frame 1, each grinding disc 2 can adaptively adjust its position according to the ground conditions to ensure that it can always maintain a close fit with the ground, so as to better grind complex terrain and avoid some places that cannot be ground and form missed grinding.

[0033] Although the present invention discloses preferred specific embodiments to achieve the above-mentioned objectives, it is not intended to limit the structural features of the present invention. Any person skilled in the art should know that within the technical spirit of the present invention, any easily conceivable changes or modifications are possible and are all covered by the scope of the patent application of the present invention.

Claims

1. A grinding mechanism, characterized in that: The invention comprises a support frame (1) and a grinding disc (2), wherein the support frame (1) is provided with a connecting pin (3), the top of the grinding disc (2) is provided with a lifting ear (21), the lifting ear (21) is provided with a vertical long hole (211), the inner diameter of the long hole (211) is larger than the outer diameter of the connecting pin (3), and the connecting pin (3) is inserted into the long hole (211) and is slidably connected thereto.

2. The grinding mechanism according to claim 1, characterized in that: A connecting hole is provided on the support frame (1), the connecting hole being arranged corresponding to the elongated hole (211), and the connecting pin (3) passes through the connecting hole and the elongated hole (211) in sequence.

3. The grinding mechanism according to claim 1, characterized in that: A through hole is formed at one end of the connecting pin (3) away from the support frame (1), and a cotter pin (6) is inserted into the through hole.

4. The grinding mechanism according to claim 1, characterized in that: Two vertical rods (11) are erected at one end of the support frame (1), and connecting components (5) are provided on the outer sliding sleeves of the two vertical rods (11).

5. The grinding mechanism according to claim 4, characterized in that: The connecting assembly (5) comprises a top plate (53) and a bottom plate (54) arranged in parallel above and below. The top plate (53) and the bottom plate (54) are connected via a plurality of vertical ribs (52). Two sleeves (51) are fixedly connected to the top of the ribs (52). The two sleeves (51) are arranged horizontally and are respectively located at the two ends of the top plate (53). The vertical rod (11) passes through the top plate (53) and the bottom plate (54).

6. The grinding mechanism according to claim 1, characterized in that: The support frame (1) is provided with a first telescopic device (7), the first telescopic device (7) is vertically arranged, the fixed end of the first telescopic device (7) is fixedly connected to the support frame (1), and the free end of the first telescopic device (7) extends downward and is connected to a walking wheel (4).

7. The grinding mechanism according to claim 6, characterized in that: The support frame (1) is further provided with a second telescopic device (8), which is arranged at an angle, one end of which is hinged to the top of the grinding disc (2), and the other end of which is hinged to the support frame (1).

8. The grinding mechanism according to claim 7, characterized in that: The first telescopic device (7) and the second telescopic device (8) are any one of a telescopic motor, a hydraulic cylinder or a pneumatic cylinder.

9. The grinding mechanism according to claim 1, characterized in that: The number of the grinding discs (2) is three, and the three grinding discs (2) are arranged in a triangle. Each grinding disc (2) is slidably connected to the support frame (1) via a connecting pin (3).

10. The grinding mechanism according to claim 1, characterized in that: A protective cover (9) is also provided above the support frame (1).

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