Universal ball

Abstract

The utility model relates to the technical field of mechanical parts, and discloses a universal ball. The utility model provides a universal ball capable of avoiding jamming. The universal ball provided by the utility model comprises a main body; the base is rotationally arranged in the main body; a sliding groove is formed in the base, and a plurality of small balls are placed on the sliding groove; a large ball, wherein the plurality of small balls are placed together with the large ball; and the end cover is arranged on the main body in a sliding manner. The cavity of the main body is designed to be cylindrical, so that the processing difficulty is reduced, and the small balls are stored on the sliding grooves, so that the phenomenon of jamming caused by accumulation of a large amount of the small balls can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical parts and discloses a universal ball. Background Art

[0002] Universal ball is a kind of mechanical part, also known as universal conveying ball or universal ball. It is usually used in transmission system, feeding system, processing system, processing machinery and packaging machinery auxiliary equipment, suitable for electronics, hardware, machinery, chemical industry, food, forestry, mining, books, supermarkets, rubber and other industries. The main application forms of universal ball include universal ball conveyor and universal ball table.

[0003] The small balls in the existing universal ball bearings are generally all close together. When subjected to eccentric force, they will be concentrated together, affecting the rolling of the large universal ball of the universal ball bearing and increasing the friction coefficient. The effect of replacing sliding with the rolling of the small balls cannot be achieved. In addition, the cavity of the base is an arc shape, which requires high machining precision, great difficulty, and high detection techniques. When the arc machining deviates, it is easy to cause the small ball and the main ball to get stuck.

[0004] Therefore, a universal ball that can avoid jamming is needed. Utility Model Content

[0005] In order to overcome the disadvantages that the small balls in the existing universal ball bearings are generally all close together and will be concentrated together when subjected to eccentric force, affecting the rolling of the large universal ball of the universal ball bearing, increasing the friction coefficient, and failing to achieve the effect of replacing sliding with the rolling of the small balls, and the cavity of the base is an arc shape, which requires high machining accuracy, great difficulty, and high detection techniques. When deviations occur in the arc machining, it is easy to cause the small balls and the main ball to get stuck, the utility model provides a universal ball that can avoid jamming.

[0006] The technical solution of the utility model is: a universal ball, comprising: a main body; a base, the base is rotatably arranged inside the main body; and a small ball, the base is provided with a sliding groove, a plurality of the small balls are placed on the sliding groove; a large ball, a plurality of the small balls are placed together with the large ball; and an end cover, the end cover is slidably arranged on the main body.

[0007] Furthermore, it also includes: a retaining frame, the retaining frame is arranged on the base, a limiting groove is provided on the retaining frame, and a plurality of positioning holes are provided on the limiting groove.

[0008] Furthermore, it also includes: a card block, two card slots are provided on the inside of the main body, and the two card blocks are fixedly connected to the end cover, and the card blocks can be inserted into the card slots; and a shielding ring, the shielding ring is fixedly connected to the top of the end cover.

[0009] Furthermore, it also includes: a mounting plate, and the bottom of the main body is fixedly connected to the mounting plate.

[0010] Furthermore, it also includes: a sealing gasket, and the sealing gasket is fixedly connected to the large ball.

[0011] Furthermore, the main body cavity is cylindrical.

[0012] Furthermore, the card slot is an L-shaped slot.

[0013] Compared with the prior art, the utility model provides a universal ball with the following beneficial effects: 1. By designing the cavity of the main body into a cylindrical shape, the processing difficulty is reduced, and the small balls are stored on the sliding groove, thereby avoiding the jamming phenomenon caused by a large number of small balls being pushed and accumulated.

[0014] 2. By placing the small ball on the positioning hole, the positioning hole limits the small ball so that the small ball cannot roll at will, thereby preventing the large ball from deviating and getting stuck.

[0015] 3. When the end cover needs to be taken out, rotate the blocking ring in the opposite direction to disengage the card block from the card slot, and then pull the end cover upward to facilitate opening the end cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0017] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the main body, end cover and large ball of the utility model.

[0018] Figure 3 It is an exploded view of the big ball, small ball and base of the utility model.

[0019] Figure 4 It is a three-dimensional cross-sectional structural schematic diagram of the small ball, the retaining frame and the base of the utility model.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the retaining frame of the utility model.

[0021] Figure 6 It is an exploded view of the main body, the clamping block and the shielding ring of the utility model.

[0022] Figure 7 It is a three-dimensional structural schematic diagram of the main body, mounting plate and sealing gasket of the utility model.

[0023] In the accompanying drawings: 1-main body, 2-end cover, 3-large ball, 4-small ball, 5-retaining frame, 501-limiting groove, 502-positioning hole, 6-base, 601-sliding groove, 7-card slot, 8-card block, 9-shielding ring, 10-mounting plate, 11-sealing gasket. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: A universal ball, see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 , including a main body 1, an end cover 2, a large ball 3, a small ball 4 and a base 6. The cavity of the main body 1 is cylindrical, which reduces the difficulty of processing. A base 6 is rotatably arranged inside the main body 1, and a sliding groove 601 is opened on the base 6. Nine small balls 4 are placed on the sliding groove 601. The nine small balls 4 are placed together with the large ball 3. The end cover 2 is slidably arranged on the main body 1. A mounting plate 10 is fixedly connected to the bottom of the main body 1. The bolts are inserted into the mounting holes on the mounting plate 10, and then the bolts are tightened, so there is no need to drill additional holes, which is convenient for fixing the main body 1. A sealing gasket 11 is fixedly connected to the large ball 3. The sealing gasket 11 reduces the gap between the end cover 2 and the large ball 3, thereby preventing foreign matter from falling into the inside of the main body 1, increasing friction, and affecting the rotation of the large ball 3 and the small ball 4.

[0026] When the universal ball is needed, first fix the main body 1 on the operating table, place the base 6 inside the cavity inside the main body 1, then place multiple small balls 4 inside the sliding groove 601, then place the large ball 3 on the small ball 4, and then cover the end cover 2 on the main body 1. By designing the cavity of the main body 1 into a cylindrical shape, the processing difficulty is reduced, and the small ball 4 is stored on the sliding groove 601, so as to avoid the small ball 4 from being stuck due to a large amount of accumulation, and then open the operating table to rotate the universal ball, and then distinguish the materials on the operating table.

[0027] Example 2: Based on Example 1, please refer to Figure 4 and Figure 5 A retaining frame 5 is provided on the base 6, and a limiting groove 501 is provided on the retaining frame 5. Nine positioning holes 502 are provided on the limiting groove 501. The aperture of the positioning hole 502 is smaller than the diameter of the ball 4, so that the ball 4 will not fall out of the positioning hole 502.

[0028] When placing the small ball 4, the small ball 4 is placed on the positioning hole 502, so that the positioning hole 502 limits the small ball 4, so that the small ball 4 cannot roll freely, thereby preventing the large ball 3 from deviating and getting stuck.

[0029] See also Figure 1 and Figure 6 Two card slots 7 are provided inside the main body 1, and two card blocks 8 are fixedly connected to the end cover 2. The card blocks 8 can be inserted into the card slots 7. A shielding ring 9 is fixedly connected to the top of the end cover 2. The card slot 7 is an L-shaped slot. The card block 8 is inserted into the card slot 7 as the inside, thereby limiting the end cover 2 to prevent the end cover 2 from loosening.

[0030] When assembling the universal ball, cover the end cover 2 on the main body 1, and then rotate the shielding ring 9 to make the block 8 fit into the slot 7, thereby fixing the end cover 2, and the shielding ring 9 shields the slot 7 to prevent dust and other impurities from falling into the slot 7. When the end cover 2 needs to be opened, rotate the shielding ring 9 in the opposite direction to disengage the block 8 from the slot 7, and then pull the end cover 2 upward, thereby achieving the purpose of facilitating the opening of the end cover 2.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A universal ball, characterized in that: include: Subject (1); A base (6), the base (6) being rotatably arranged inside the main body (1); and a small ball (4), wherein the base (6) is provided with a sliding groove (601), and a plurality of the small balls (4) are placed on the sliding groove (601); A large ball (3), wherein a plurality of small balls (4) are placed together with the large ball (3); An end cover (2) is slidably arranged on the main body (1).

2. A universal ball as claimed in claim 1, characterized in that: Also includes: A retaining frame (5), the retaining frame (5) is arranged on the base (6), a limiting groove (501) is provided on the retaining frame (5), and a plurality of positioning holes (502) are provided on the limiting groove (501).

3. A universal ball transfer device as claimed in claim 1, characterized in that: Also includes: A card block (8), wherein two card slots (7) are provided inside the main body (1), and the end cover (2) is fixedly connected with two card blocks (8), and the card block (8) can be inserted into the card slots (7); A shielding ring (9), the shielding ring (9) is fixedly connected to the top of the end cover (2).

4. A universal ball transfer device as claimed in claim 1, characterized in that: Also includes: A mounting plate (10) is fixedly connected to the bottom of the main body (1).

5. A universal ball transfer device as claimed in claim 1, characterized in that: Also includes: A sealing gasket (11) is fixedly connected to the large ball (3).

6. A universal ball transfer device as claimed in claim 1, characterized in that: The main body (1) cavity is cylindrical.

7. A universal ball transfer device as claimed in claim 3, characterized in that: The card slot (7) is an L-shaped slot.

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