A universal ball chain plate

Abstract

A universal ball chain plate relates to the technical field of conveying chain plates. It includes a chain plate body, on which a row of ball accommodating holes are provided. A universal ball is rotatably arranged in the ball accommodating hole, and the universal ball is in clearance fit with the ball accommodating hole and protrudes from the conveying surface of the chain plate body. The universal ball includes a hard sphere and an elastic material layer coated on the outside of the hard sphere. The universal ball of the present invention adopts a coated structure, with a hard material used for the inner core of the sphere to prevent the universal ball from deforming under heavy pressure. The surface of the sphere is coated with an elastic material layer. This design can increase the friction between the sphere and the surface of the conveyed object, effectively play the conveying role of the sphere. At the same time, when the sphere is pressed, the elastic coating deforms, increasing the contact area with the conveyed object and further improving the friction.

Description

Technical Field

[0001] The present invention relates to the technical field of conveyor chain plates, and specifically to a universal ball chain plate. Background Art

[0002] The existing universal ball conveyor chain plate realizes universal conveying by using the relative movement generated between the chain plate and the dynamic cushion rail. The balls roll by friction with the cushion rail, and the movement direction of the dynamic cushion rail drives the balls to roll in different directions, driving the articles on the ball surface to move and rotate relative to the chain plate.

[0003] Generally, the balls of the existing universal ball conveyor chain plates are made of hard materials without coatings on the surface. When the balls contact the dynamic cushion rail and the conveyed objects, sliding friction occurs between the smooth hard plastic surface of the balls and the conveyed objects, with relatively small frictional force, resulting in mutual sliding and errors. The frictional force between the balls and the conveyed objects cannot accurately drive the conveyed objects to move. If the universal balls are directly made of soft materials, they will deform under the pressure of heavy objects and cannot play the role of rolling conveyance.

[0004] Moreover, during the conveying process of the universal ball conveyor chain plate, the balls rub against the four walls of the ball receiving holes, enlarging the apertures of the ball receiving holes. The balls get stuck in the worn ball receiving holes, further reducing the contact surface with the conveyed objects and unable to play the role of conveying the conveyed objects. Summary of the Invention

[0005] The purpose of the present invention is to provide a universal ball chain plate, which can effectively solve the problems in the background art.

[0006] The technical solution to achieve the above purpose is: a universal ball chain plate, including a chain plate body, on which a row of ball receiving holes is provided. A universal ball is rotatably arranged in the ball receiving holes, and the universal ball is in clearance fit with the ball receiving holes and protrudes from the conveying surface of the chain plate body. Its characteristics are that: the universal ball includes a hard sphere and an elastic material layer coated on the outside of the hard sphere.

[0007] The universal ball of the present invention adopts a coated structure. The inner core of the ball is made of a hard material to prevent the universal ball from deforming under heavy pressure. The surface of the ball is coated with an elastic material layer. This design can increase the frictional force between the ball and the surface of the conveyed object, effectively playing the conveying role of the ball. At the same time, when the ball is pressed, the elastic coating deforms, increasing the contact area with the conveyed object and further improving the frictional force.

[0008] Furthermore, the hard sphere is injection molded from engineering plastic, and the engineering plastic is not easy to deform, which can effectively play the role of maintaining the functional shape of the universal ball.

[0009] Furthermore, the elastic material layer is made of rubber and plastic material, and the rubber and plastic material has good elasticity.

[0010] Furthermore, the diameter of the hard sphere is slightly larger than the thickness of the chain plate body, and the thickness of the elastic material layer is 0.8 - 1.2 mm. The elastic material layer increases the friction between the universal rolling ball and the surface of the conveyed object, effectively playing the role of the sphere in conveying.

[0011] Furthermore, a ring of annular ridges is provided on the inner wall of the middle part of the ball receiving hole, and the universal rolling ball is in rolling fit with the annular ridges.

[0012] Furthermore, the annular ridges are made of polytetrafluoroethylene.

[0013] During the rotation of the universal rolling ball in the ball receiving hole, it contacts and frictions with the annular ridges and does not contact the inner wall of the ball receiving hole, so it will not cause wear to the inner wall of the ball receiving hole, avoiding the sphere getting stuck in the ball receiving hole, thereby reducing the contact surface with the conveyed object. And polytetrafluoroethylene has a self-lubricating effect and has the smallest friction coefficient (0.04) among solid materials.

[0014] Furthermore, arc-shaped ridges are arranged at intervals on the circumferential inner wall of the ball receiving hole, and the arc-shaped ridges are arranged along the axial direction, and the universal rolling ball is in rolling fit with the arc-shaped ridges.

[0015] Furthermore, the arc-shaped ridges are made of polytetrafluoroethylene.

[0016] During the rotation of the universal rolling ball in the ball receiving hole, it contacts and frictions with the arc-shaped ridges and does not contact the inner wall of the ball receiving hole, so it will not cause wear to the inner wall of the ball receiving hole, avoiding the sphere getting stuck in the ball receiving hole, thereby reducing the contact surface with the conveyed object. And polytetrafluoroethylene has a self-lubricating effect and has the smallest friction coefficient (0.04) among solid materials.

[0017] Furthermore, a row of square grooves is provided on the back surface of the chain plate body, and a cover plate that is snap-connected to the chain plate body is fitted in the square grooves. The ball receiving holes are respectively arranged between the chain plate body and the cover plate. Opening the cover plate can achieve the rapid installation or replacement of the universal rolling balls.

[0018] Furthermore, a plurality of grooves are arranged circumferentially on the surface of the hard sphere, and convex lines that are fitted and embedded in the grooves are arranged on the inner wall of the elastic material layer. The cooperation between the convex lines and the grooves can effectively improve the connection strength between the hard sphere and the elastic material layer. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of this first embodiment;

[0020] Figure 2 is a cross-sectional view of the first embodiment;

[0021] Figure 3Schematic diagram of the structure of the second embodiment;

[0022] Figure 4 Cross-sectional view of the universal ball in the third embodiment;

[0023] Figure 5 Front view of the hard sphere in the third embodiment. Specific implementation manners

[0024] As shown in Figure 1 and 2 , the present invention includes a link plate body 1. A row of square grooves 11 are provided on the back of the link plate body 1. A cover plate 2 which is snap-connected with the link plate body 1 is arranged in the square grooves 11 in a matching manner. Universal ball accommodating holes 3 which penetrate through the upper and lower parts are respectively arranged between the link plate body 1 and the cover plate 2. The universal ball accommodating holes 3 are in an hourglass shape. A universal ball 4 is rotatably arranged in the universal ball accommodating holes 3. The universal ball 4 protrudes from the conveying surface of the link plate body 1. Opening the cover plate 2 can realize the quick installation or replacement of the universal ball 4.

[0025] As a further description of this embodiment, the snap structure of the cover plate 2 belongs to the prior art and will not be elaborated here.

[0026] The universal ball 4 includes a hard sphere 5 and an elastic material layer 6 coated outside the hard sphere 5. The hard sphere 5 is injection molded by using, but not limited to, engineering plastics (such as PP). The elastic material layer 6 is made of, but not limited to, rubber and plastic materials (such as polyurethane).

[0027] As a further description of this embodiment, a ring of annular ridges 7 are arranged on the inner wall of the middle part of the universal ball accommodating hole 3. The universal ball 4 is in rolling fit with the annular ridges 7. The annular ridges 7 are made of polytetrafluoroethylene material, and the universal ball 4 is in rolling fit with the annular ridges 7.

[0028] The diameter of the hard sphere 5 is slightly larger than the thickness of the link plate body 1, so that the universal ball 4 protrudes from the conveying surface of the link plate body 1. The thickness of the elastic material layer 6 is 0.8 - 1.2 mm.

[0029] Second embodiment

[0030] As shown in Figure 3 , the difference between the second embodiment and the first embodiment is that: arc-shaped ridges 8 are arranged at intervals on the circumferential inner wall of the universal ball accommodating hole 3. The arc-shaped ridges 8 are arranged along the axial direction of the universal ball accommodating hole 3. The arc-shaped ridges 8 are used to replace the annular ridges 7 in the first embodiment. The arc-shaped ridges 8 are made of polytetrafluoroethylene material, and the universal ball 4 is in rolling fit with the arc-shaped ridges 8.

[0031] Third embodiment

[0032] As shown in Figure 4 and 5As shown in the figure, the difference between the third embodiment and the first embodiment is that: a plurality of grooves 9 are provided on the surface of the hard sphere 5 along the circumferential direction, and ridges 10 that are fitted in the grooves 9 are provided on the inner wall of the elastic material layer 6.

Claims

1. A universal ball chain plate, comprising a chain plate body, wherein a row of ball accommodating holes are arranged on the chain plate body, universal balls are rotatably arranged in the ball accommodating holes, the universal balls are in clearance fit with the ball accommodating holes and protrude from the conveying surface of the chain plate body, and it is characterized in that: The universal rolling ball includes a hard sphere and an elastic material layer coated on the outer surface of the hard sphere; the diameter of the hard sphere is slightly larger than the thickness of the chain plate body, and the thickness of the elastic material layer is 0.8 - 1.2 mm; a ring of annular ridges is provided on the inner wall of the middle part of the ball accommodating hole, and the universal rolling ball is in rolling fit with the annular ridges, and the annular ridges are made of polytetrafluoroethylene material.

2. The universal ball chain plate according to claim 1, characterized in that: The hard sphere is injection molded from engineering plastic.

3. The universal rolling ball chain plate according to claim 1, characterized in that: The elastic material layer is made of rubber and plastic material.

4. A universal ball chain plate according to claim 1, characterized in that: A row of square grooves is provided on the back surface of the chain plate body, and a cover plate that is snap-connected to the chain plate body is fitted in the square grooves, and the ball accommodating holes are respectively provided between the chain plate body and the cover plate.

5. The universal ball chain plate according to claim 1, characterized in that: A plurality of grooves are circumferentially provided on the surface of the hard sphere, and convex stripes that are fitted in the grooves are provided on the inner wall of the elastic material layer.

6. A universal ball chain plate, comprising a chain plate body, wherein a row of ball accommodating holes are arranged on the chain plate body, universal balls are rotatably arranged in the ball accommodating holes, the universal balls are in clearance fit with the ball accommodating holes and protrude from the conveying surface of the chain plate body, and it is characterized in that: The universal rolling ball includes a hard sphere and an elastic material layer coated on the outer surface of the hard sphere; the diameter of the hard sphere is slightly larger than the thickness of the chain plate body, and the thickness of the elastic material layer is 0.8 - 1.2 mm; arc-shaped ridges are spacedly provided on the circumferential inner wall of the ball accommodating hole, and the arc-shaped ridges are arranged axially, and the universal rolling ball is in rolling fit with the arc-shaped ridges.

7. The universal rolling ball chain plate according to claim 6, characterized in that: The arc-shaped ridges are made of polytetrafluoroethylene material.

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