Secure sand circle with anti-drop barb assembly

Abstract

The utility model discloses a firm sand ring with anti -drop barb subassembly, concretely relates to sand ring technical field, including the sand ring body of installation in the outer portion of axle rod, the sand ring body includes the base layer, reinforcing layer and sand layer fixed setting in order from inside to outside, and the connecting place of sand ring body and axle rod is provided with barb structure, and one end of axle rod is provided with locking structure. The utility model can enhance the connection stability of sand ring and axle rod, prevent falling when rotating and be convenient to dismouting, and can realize the double fixing of sand ring axial, improve the firmness of sand ring greatly, and the whole sand ring has high strength and high toughness, can improve the service life of sand ring whole.

Description

Technical Field

[0001] This utility model relates to the field of sanding ring technology, and more specifically, to a secure sanding ring with anti-fall-off barb components. Background Technology

[0002] Abrasive rings are grinding tools made of resin-bonded abrasive cloth and a lining cloth spirally joined together. They are widely used in mold processing, dental restoration, precision metal manufacturing and other fields. They can be used to perform grinding, deburring, leveling, fine grinding and polishing on various metal workpieces.

[0003] However, the connection between the sand ring and the shaft is not strong enough. When rotating at high speed or subjected to external impact, the sand ring is prone to loosening or even falling off. This not only affects the processing effect, but may also lead to safety accidents. In view of this, this utility model proposes a strong sand ring for the anti-fall-off barb assembly. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a sturdy sand ring with anti-detachment barb assembly to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sturdy sand ring with an anti-detachment hook assembly, comprising a sand ring body installed on the outside of a shaft, wherein the sand ring body comprises a base layer, a reinforcing layer and a sand layer fixedly arranged from the inside to the outside, the base layer being woven from glass fiber and the reinforcing layer being woven from metal mesh.

[0006] It can be seen that the sand ring body is composed of a base layer, a reinforcing layer and a sand layer, which can improve the strength of the sand ring body and make it less prone to deformation and bending.

[0007] To prevent the sand ring body from detaching due to centrifugal force or external force during rotation and to improve the stability of the installation, preferably, a barb structure is provided at the connection between the sand ring body and the shaft. The barb structure includes a support sleeve, which is fixedly installed on the outside of the shaft. The surface of the support sleeve is provided with a number of oblique tooth grooves in an annular shape. The inner wall of the base layer to which the sand ring body belongs is provided with a number of oblique tooth blocks in an annular shape. The number of oblique tooth blocks and oblique tooth grooves are set to be the same and the structures are compatible. The oblique tooth blocks slide in the oblique tooth grooves.

[0008] To prevent the sand ring from falling off axially along the shaft, preferably, one end of the shaft is provided with a locking structure, which includes a feed screw. One end of the shaft has a threaded groove, and the outer wall of the feed screw is threaded to the inner wall of the threaded groove. A limiting plate is fixedly installed at one end of the feed screw. The depth of the threaded groove is the same as the length of the feed screw. The outer diameter of the limiting plate is larger than the inner diameter of the base layer and smaller than the outer diameter of the reinforcing layer. Two finger grooves are formed on the surface of the limiting plate.

[0009] The technical effects and advantages of this utility model are as follows:

[0010] 1. By setting up a barbed structure, the connection reliability between the sand ring and the shaft can be significantly enhanced by using the annular oblique tooth groove on the outside of the support sleeve and the annular oblique tooth blocks on the inner wall of the base. The oblique tooth blocks and oblique tooth grooves effectively resist the centrifugal force and axial impact force generated during rotation by using the oblique surface friction and mechanical hooking action, preventing the sand ring from falling off. At the same time, the sliding fit of the oblique tooth blocks in the oblique tooth grooves makes the sand ring easier to disassemble and assemble, greatly improving work safety and maintenance efficiency.

[0011] 2. By setting a locking structure, the feed screw is screwed into the threaded groove of the shaft, and the limiting plate can press against the inner side of the reinforcing layer to form a mechanical block, which realizes the double fixation of the sand ring in the axial direction, further preventing the sand ring from loosening and improving the firmness of the sand ring;

[0012] 3. By constructing the sanding ring body from a base layer, a reinforcing layer, and a sand layer, the fiberglass base layer provides lightweight and high-strength support, the metal mesh reinforcing layer enhances tear resistance, and the outer abrasive layer ensures efficient grinding. The three-layer structure works synergistically to maintain the stable shape of the sanding ring under high-speed rotation, extend its service life, and reduce the overall weight and energy consumption of the equipment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the connection structure between the feed screw and the shaft of this utility model.

[0015] Figure 3 This is a schematic diagram of the inner wall structure of the sand ring body of this utility model.

[0016] Figure 4 This is a schematic diagram of the connection structure between the support sleeve and the shaft of this utility model.

[0017] Figure 5 This is a schematic diagram of another angle structure of this utility model.

[0018] The attached diagram is labeled as follows: 1. Shaft; 2. Sand ring body; 20. Base layer; 21. Reinforcing layer; 22. Sand layer; 3. Support sleeve; 4. Inclined tooth groove; 5. Inclined tooth block; 6. Feed screw; 7. Threaded groove; 8. Limiting plate; 9. Finger groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] As attached Figure 1-5 The sturdy sand ring with anti-detachment barb assembly shown includes a sand ring body 2 installed on the outside of the shaft 1. The sand ring body 2 includes a base layer 20, a reinforcing layer 21 and a sand layer 22 fixedly arranged from the inside to the outside. The base layer 20 is made of woven glass fiber and the reinforcing layer 21 is made of woven metal mesh.

[0021] Specifically, in this structure, the sanding ring body 2 is installed on the outside of the shaft 1, which enables the driving device to drive the shaft 1 to rotate, so that the sanding ring body 2 can achieve the effect of rotational grinding.

[0022] The base layer 20, woven from glass fiber, provides basic mechanical support and maintains the shape of the sand ring through the high strength and toughness of the fiber material, resisting tensile and bending stresses during operation.

[0023] A reinforcing layer 21 woven from metal mesh is superimposed on the base layer 20. The rigidity of the metal is used to further enhance the tear resistance and deformation resistance of the sand ring, ensuring structural stability under high-speed rotation or stress.

[0024] The outermost abrasive layer 22 is fixed with a bonding material, such as silicon carbide, to achieve the grinding and polishing function of the workpiece by utilizing the hardness of the abrasive particles.

[0025] In this embodiment, as shown in the appendix Figure 3 , 4 As shown, a barb structure is provided at the connection between the sand ring body 2 and the shaft 1. The barb structure includes a support sleeve 3, which is fixedly installed on the outside of the shaft 1. The surface of the support sleeve 3 is provided with several oblique tooth grooves 4 in an annular shape. Several oblique tooth blocks 5 are fixedly distributed in an annular shape on the inner wall of the base layer 20 to which the sand ring body 2 belongs. The number of oblique tooth blocks 5 and oblique tooth grooves 4 are the same and the structures are compatible. The oblique tooth blocks 5 slide in the oblique tooth grooves 4.

[0026] Specifically, in this structure, the support sleeve 3 is tightly fitted onto the outside of the shaft 1, forming a connecting base between the sand ring body 2 and the shaft 1, ensuring structural stability. The number and structure of the annularly distributed oblique tooth grooves 4 on the surface of the support sleeve 3 are matched one-to-one with the oblique tooth blocks 5 on the inner wall of the sand ring base 20. During installation, the oblique tooth blocks 5 are slidably embedded into the oblique tooth grooves 4. The friction of the oblique surface and the mechanical hook action are used to restrict the sand ring from sliding along the axial direction of the shaft 1, thereby avoiding the tendency to fall off due to centrifugal force or external force during rotation, improving the firmness of the installation, and facilitating the disassembly and assembly of the sand ring body 2 and the shaft 1.

[0027] In this embodiment, as shown in the appendix Figure 2 , 5 As shown, a locking structure is provided at one end of the shaft 1. The locking structure includes a feed screw 6. A threaded groove 7 is opened at one end of the shaft 1. The outer wall of the feed screw 6 is threadedly connected to the inner wall of the threaded groove 7. A limiting plate 8 is fixedly installed at one end of the feed screw 6. The opening depth of the threaded groove 7 is the same as the length of the feed screw 6. The outer diameter of the limiting plate 8 is larger than the inner diameter of the base layer 20 and smaller than the outer diameter of the reinforcing layer 21. Two finger grooves 9 are opened on the surface of the limiting plate 8.

[0028] Specifically, in this structure, the feed screw 6 and the threaded groove 7 of the shaft 1 are threaded together. When the feed screw 6 is rotated, it is moved axially along the shaft 1 by means of threaded transmission. The outer diameter of the limiting plate 8 is between the inner diameter of the base layer 20 and the outer diameter of the reinforcing layer 21. During installation, after the sand ring base layer 20 is fitted into the shaft 1, the limiting plate 8 is tightened by axial movement of the thread, which can press against the inner side of the sand ring reinforcing layer 21 to form a mechanical block and prevent the sand ring from falling outward along the shaft 1. The finger groove 9 on the surface of the limiting plate 8 provides a force application point, which makes it easy to manually rotate the feed screw 6 to achieve quick installation or disassembly and improve the convenience of operation.

[0029] Since the outer diameter of the limiting plate 8 is between the inner diameter of the base layer 20 and the outer diameter of the reinforcing layer 21, it does not affect the use of the outer sand layer 22.

[0030] Working principle of this utility model:

[0031] This application provides a robust sand ring with an anti-detachment hook assembly. In practical use, the support sleeve 3 is first tightly fitted onto the outside of the shaft 1 as a connecting base. Then, the sand ring body 2 is fitted into the shaft 1, so that the inclined tooth block 5 on the inner wall of the sand ring base 20 is aligned with the inclined tooth groove 4 on the surface of the support sleeve 3. The inclined tooth block 5 is slidably embedded into the inclined tooth groove 4, thus initially completing the connection between the sand ring body 2 and the shaft 1. The inclined friction and mechanical hook action are used to restrict the sand ring from sliding along the shaft 1 axial direction.

[0032] By manually rotating the feed screw 6 through the finger groove 9 on the surface of the limiting plate 8, the feed screw 6 is moved axially along the shaft 1 using the threaded transmission. Since the outer diameter of the limiting plate 8 is between the inner diameter of the base layer 20 and the outer diameter of the reinforcing layer 21, as the feed screw 6 is tightened, the limiting plate 8 gradually presses against the inner side of the sand ring reinforcing layer 21, forming a mechanical block, further preventing the sand ring from falling outward along the shaft 1, thus completing the secure installation of the sand ring.

[0033] The entire sanding ring is installed at the drive device, which drives the shaft 1 to rotate, and the shaft 1 then drives the sanding ring body 2 to rotate. At this time, the base layer 20, which is woven from glass fiber, provides basic mechanical support, maintains the shape of the sanding ring, and resists tensile and bending stress. The reinforcing layer 21, which is woven from metal mesh, enhances the sanding ring's resistance to tearing and deformation, ensuring the structural stability of the sanding ring under high-speed rotation. The outermost sand layer 22 is made of abrasive sand fixed by bonding material. The abrasive sand is used to grind and polish the workpiece by utilizing the hardness of the abrasive grains, thus completing the predetermined work task.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A robust sand ring with an anti-detachment barb assembly, comprising a sand ring body (2) mounted on the outside of a shaft (1), characterized in that: The sand ring body (2) includes a base layer (20), a reinforcing layer (21) and a sand layer (22) fixedly arranged from the inside to the outside. A barb structure is provided at the connection between the sand ring body (2) and the shaft (1), and a locking structure is provided at one end of the shaft (1).

2. The secure sanding ring with anti-detachment barb assembly according to claim 1, characterized in that: The barb structure includes a support sleeve (3), which is fixedly installed on the outside of the shaft (1). The surface of the support sleeve (3) is provided with a number of oblique tooth grooves (4) in an annular shape. The inner wall of the base layer (20) to which the sand ring body (2) belongs is provided with a number of oblique tooth blocks (5) in an annular shape.

3. The secure sanding ring with anti-detachment barb assembly according to claim 2, characterized in that: The number of the helical tooth blocks (5) and the helical tooth grooves (4) are set to be the same and the structures are compatible. The helical tooth blocks (5) slide in the interior of the helical tooth grooves (4).

4. The secure sanding ring with anti-detachment barb assembly according to claim 1, characterized in that: The locking structure includes a feed screw (6), one end of the shaft (1) is provided with a threaded groove (7), the outer wall of the feed screw (6) is threadedly connected to the inner wall of the threaded groove (7), and a limit plate (8) is fixedly installed at one end of the feed screw (6).

5. The secure sanding ring with anti-detachment barb assembly according to claim 4, characterized in that: The depth of the threaded groove (7) is the same as the length of the feed screw (6). The outer diameter of the limiting plate (8) is greater than the inner diameter of the base layer (20) and less than the outer diameter of the reinforcing layer (21). Two finger grooves (9) are opened on the surface of the limiting plate (8).

6. The secure sanding ring with anti-detachment barb assembly according to claim 1, characterized in that: The base layer (20) is woven from glass fiber, and the reinforcing layer (21) is woven from metal mesh.

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