Automatic lubricating structure of universal coupling

Abstract

The invention provides an automatic lubricating structure of a universal coupling, and relates to the technical field of coupling equipment. The automatic lubricating structure of the universal coupling comprises a connector shell, a plurality of oil storage cavities are formed in the inner side wall of the connector shell, the oil storage cavities are distributed in an annular array mode, and connecting balls are rotationally connected into the oil storage cavities in a clamped mode. In the moving process, when the connecting balls and the center balls are extruded and rotate, lubricating oil adsorbed in the oil storage cotton can be brought out to lubricate the connecting component, meanwhile, the lubricating oil can be extruded out of the small oil outlet holes, and the lubricating effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of coupling equipment, in particular to an automatic lubrication structure of a universal coupling. Background Art

[0002] Universal couplings are mainly used to connect two shafts (driving shaft and driven shaft) in different mechanisms, so that they rotate together to transmit torque and motion. Its biggest feature is that the structure has a large angular compensation ability, which allows the two shafts to achieve continuous rotation and reliably transmit torque and motion even if they are not on the same axis and there is an axis angle. In addition, universal couplings also have the advantages of compact structure and high transmission efficiency.

[0003] When a traditional coupling is in use, its internal related parts are difficult to lubricate, especially when it is working under the condition of transmitting power at a large angle for a long time, the internal connection structure is very easy to wear, which affects its service life. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the deficiencies in the prior art, the present invention provides an automatic lubrication structure for a universal coupling, which solves the problem that the internal related parts of a traditional coupling are difficult to lubricate when in use, especially when transmitting power at a large angle for a long time, the internal connection structure is very easy to wear, thus affecting its service life.

[0005] (II) Technical solution To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic lubrication structure of a universal joint, including a connector shell, the inner side wall of the connector shell is provided with a plurality of oil storage chambers, the plurality of oil storage chambers are distributed in a circular array, the interiors of the plurality of oil storage chambers are rotatably clamped with connecting balls, the inner bottom of the connector shell is provided with a central cavity, the central cavity, the interior of the central cavity is embedded with a central ball rotatably clamped, a connecting channel is provided between two adjacent oil storage chambers, the two ends of the connecting channel are respectively connected to the two oil storage chambers, the plurality of oil storage chambers and the central cavity are connected through connecting pipes, and the interiors of the oil storage chambers, connecting channels, connecting pipes and central cavities are all filled with oil storage cotton.

[0006] Preferably, a plurality of oil outlet holes are formed on the tops of the plurality of connecting pipes.

[0007] Preferably, half of the volume of the connecting balls and the central balls is outside.

[0008] Working principle: When in use, the double shafts are connected by a coupling. When the shaft needs to transmit power at an angle, one side will be inserted into the inside of the connector housing and transmit power by rotating or presenting an angle. In the process of transmitting power, relative movement will occur between the connector housing, and then connected through the center ball and multiple connecting balls, changing the traditional sliding friction, reducing the friction between devices, and extending the service life of the components. During the movement, when the connecting balls and the center balls are squeezed and rotated, the lubricating oil adsorbed on the oil storage cotton will be brought out to lubricate the connecting components. At the same time, the lubricating oil will also be squeezed out from multiple oil outlet holes to improve the lubrication effect.

[0009] (III) Beneficial effects The present invention provides an automatic lubrication structure for a universal coupling, which has the following beneficial effects: 1. The automatic lubrication structure of the universal coupling will produce relative movement with the connector housing during the power transmission process, and then connect through the central ball and multiple connecting balls, changing the traditional sliding friction, reducing the friction between components, and extending the service life of the components.

[0010] 2. The automatic lubrication structure of the universal coupling will bring out the lubricating oil absorbed in the oil storage cotton when the connecting ball and the center ball are squeezed and rotated during movement, lubricating the connecting components. At the same time, the lubricating oil will also be squeezed out from multiple oil outlet holes to improve the lubrication effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A top sectional view of the present invention; Figure 2 It is a front view of the present invention.

[0012] Among them, 1. Connector housing; 2. Oil storage chamber; 3. Connecting ball; 4. Connecting channel; 5. Central cavity; 6. Connecting pipe; 7. Oil outlet hole; 8. Central ball. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0014] like Figure 1-2As shown, an embodiment of the present invention provides an automatic lubrication structure of a universal joint, including a connector housing 1, an inner side wall of the connector housing 1 is provided with a plurality of oil storage chambers 2, the plurality of oil storage chambers 2 are distributed in a ring array, the interiors of the plurality of oil storage chambers 2 are rotatably clamped with connecting balls 3, an inner bottom of the connector housing 1 is provided with a central cavity 5, the central cavity 5, the interior of the central cavity 5 is embedded with a central ball 8 rotatably clamped, a connecting channel 4 is provided between two adjacent oil storage chambers 2, the two ends of the connecting channel 4 are respectively connected to the two oil storage chambers 2, the plurality of oil storage chambers 2 and the central cavity 5 are connected through a connecting pipe 6, and the interiors of the oil storage chambers 2, the connecting channel 4, the connecting pipe 6 and the central cavity 5 are all filled with oil storage cotton.

[0015] A plurality of oil outlet holes 7 are formed on the tops of the plurality of connecting pipes 6; half of the volume of the connecting balls 3 and the central ball 8 is outside.

[0016] 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. An automatic lubrication structure for a universal coupling, comprising a connector housing (1), characterized in that: The inner side wall of the connector housing (1) is provided with a plurality of oil storage chambers (2), the plurality of oil storage chambers (2) being distributed in a ring array, the interior of the plurality of oil storage chambers (2) being rotatably clamped with connecting balls (3), the inner bottom of the connector housing (1) being provided with a central cavity (5), the interior of the central cavity (5) being embedded with a central ball (8) being rotatably clamped, a connecting channel (4) being provided between two adjacent oil storage chambers (2), the two ends of the connecting channel (4) being respectively connected to the two oil storage chambers (2), the plurality of oil storage chambers (2) and the central cavity (5) being connected via a connecting pipe (6), and the interior of the oil storage chamber (2), the connecting channel (4), the connecting pipe (6) and the central cavity (5) being filled with oil storage cotton.

2. The automatic lubrication structure of a universal coupling according to claim 1, characterized in that: A plurality of oil outlet holes (7) are provided on the tops of the plurality of connecting pipes (6).

3. The automatic lubrication structure of a universal coupling according to claim 1, characterized in that: Half of the volume of the connecting ball (3) and the central ball (8) is outside.

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