Self-lubricating oil feeding device for press machine gear alloy copper

Abstract

The utility model discloses a self-lubricating oil feeding device for press machine gear alloy copper, which is characterized by comprising at least one oil collecting pipe fixed on the end face of an intermediate gear, inclined oil holes are arranged in the intermediate gear, the number and the position of the inclined oil holes correspond to those of the oil collecting pipe, and two pieces of alloy copper which are oppositely arranged along the axial direction are arranged between the intermediate gear and a shaft. A gap is formed between the two pieces of alloy copper, one end of the oblique oil hole is in butt joint communication with an oil outlet of the oil collecting pipe, the other end of the oblique oil hole is in butt joint communication with the gap, a gear box is fixedly arranged on a rack of the press machine, and the intermediate gear and the shaft are both located in the gear box; the self-lubricating device has the advantages that lubricating oil in the gear box on the rack is utilized, self-lubricating of the alloy copper located between the shaft and the intermediate gear is achieved through the oil collecting pipe and the inclined oil hole in the intermediate gear, oil feeding through an external oil tank and an external power source is not needed either, cost is reduced, meanwhile, an external pipeline is omitted, and the service life of the gear box is prolonged. And the aesthetic degree of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of presses, in particular to a self-lubricating oil supply device for a gear coupling of a press. Background Art

[0002] Copper sleeves (i.e., bushings) are provided between the shaft and the intermediate gear of the press, and between the crankshaft and the connecting rod to improve their wear resistance, and the copper sleeves need to be lubricated. At present, the lubrication of the copper sleeves is basically achieved through oil supply from an external oil tank. This oil supply method requires the processing of axial and radial cross-shaped oil inlet holes on the shaft and crankshaft so that the thin oil can enter the copper sleeve position for lubrication. When the distance from the lubrication point to the end face of the shaft is long, the depth of the oil inlet hole increases to form a slender shape, and the slender oil inlet hole is difficult to process. Moreover, the external oil tank needs to be supported and suspended on the rear side of the platform through a fixed seat, which not only increases the cost of the oil tank and the fixed seat, but also increases the repair and daily maintenance work. In addition, the external oil tank needs to be connected to the oil inlet hole of the shaft through a pipeline, and the external pipeline has a certain impact on the appearance of the equipment. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a self-lubricating oil supply device for a press gear coupling, which realizes self-lubrication of the coupling arranged between a shaft and an intermediate gear without the need for oil supply through an external oil tank.

[0004] The technical solution adopted by the utility model to solve the above technical problems is: a self-lubricating oil supply device for a gear coupling of a press machine, comprising at least one oil collecting pipe fixed to the end face of an intermediate gear, the intermediate gear is provided with oblique oil holes whose number and position correspond to the oil collecting pipe, two couplings arranged opposite to each other in the axial direction are provided between the intermediate gear and the shaft, a gap is provided between the two couplings, one end of the oblique oil hole is connected to the oil outlet of the oil collecting pipe, and the other end is connected to the gap, a gear box is fixedly provided on the frame of the press, and the intermediate gear and the shaft are both located in the gear box.

[0005] Furthermore, the oil collecting pipe is arc-shaped.

[0006] Furthermore, there are multiple oil collecting pipes, which are evenly distributed along the circumferential direction of the intermediate gear.

[0007] Compared with the prior art, the advantage of the utility model is that it utilizes the lubricating oil in the gear box on the frame to achieve self-lubrication of the copper alloy between the shaft and the intermediate gear through the oil collecting pipe and the oblique oil holes in the intermediate gear, without the need for oil supply through an external oil tank or an external power source, thereby reducing costs, eliminating external piping, and improving the aesthetics of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a cross-sectional view of the present utility model;

[0009] Figure 2 is a schematic diagram of the fit between the intermediate gear and the shaft of the present utility model. Specific embodiments

[0010] The present utility model will be further described in detail below in conjunction with the embodiments with reference to the drawings.

[0011] As shown in the figure, a self-lubricating oil supply device for a press gear coupling includes a plurality of oil collecting pipes 2 arranged uniformly in the circumferential direction and fixed to the end face of the intermediate gear 1. The oil collecting pipes 2 are arc-shaped. Oblique oil holes 11 corresponding in number and position to the oil collecting pipes 2 are provided in the intermediate gear 1. Two couplings 4 arranged axially opposite to each other are provided between the intermediate gear 1 and the shaft 3. A gap 5 is provided between the two couplings 4. One end of the oblique oil hole 11 is butt-connected and communicated with the oil outlet of the oil collecting pipe 2, and the other end is butt-connected and communicated with the gap 5. A gear box 7 is fixedly provided on the frame 6 of the press. The intermediate gear 1 and the shaft 3 are both located in the gear box 7.

[0012] In the above embodiment, the number of the oil collecting pipes 2 can also be 1; and when there are multiple oil collecting pipes, the arrangement manner on the end face of the intermediate gear 1 can be various.

[0013] In the above embodiment, the process of the self-lubricating oil supply device for automatically supplying oil to the coupling 4 between the intermediate gear 1 and the shaft 3 is as follows: Since both the shaft 3 and the intermediate gear 1 are located in the gear box 7, and lubricating oil is injected into the gear box 7. While the intermediate gear 1 rotates, it drives the oil collecting pipe 2 to rotate synchronously. Since the oil collecting pipe 2 is arc-shaped, it is convenient to bring the lubricating oil in the gear box 7 into it, and at the same time, it can prevent the lubricating oil from being thrown out. The lubricating oil passes through the oblique oil hole 11 and enters the gap 5 between the two couplings 4, and then flows into the gaps between the coupling 4 and the shaft 3 and between the coupling 4 and the intermediate gear 1 through the gap 5, realizing the lubrication of the coupling 4.

[0014] The protection scope of the present utility model includes but is not limited to the above embodiments. The protection scope is subject to the claims. Any substitution, deformation, and improvement that are easily conceivable by those skilled in the art to this technology fall within the protection scope of the present utility model.

Claims

1. A self-lubricating oil supply device for a press gear engagement copper, characterized in that It includes at least one oil collecting pipe fixed to the end face of the intermediate gear. Oblique oil holes with quantities and positions corresponding to those of the oil collecting pipe are arranged in the intermediate gear. There are two copper alloys arranged axially opposite to each other between the intermediate gear and the shaft, and a gap is arranged between the two copper alloys. One end of the oblique oil hole is butt-connected and communicated with the oil outlet of the oil collecting pipe, and the other end is butt-connected and communicated with the gap. A gearbox is fixedly arranged on the frame of the press, and the intermediate gear and the shaft are both located in the gearbox.

2. The self-lubricating oil supply device for the press gear engagement copper according to claim 1, characterized in that: The oil collecting pipe is arc-shaped.

3. The self-lubricating oil supply device for the press gear engagement copper as described in claim 1, characterized in that: There are multiple oil collecting pipes, which are distributed along the circumferential direction of the intermediate gear.

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