JPH08383Y2 - Oil lubrication system for gears in spinning machines - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to an oil lubrication device for gears in a spinning machine such as a ring spinning machine and a ring twisting machine.

[Prior Art] In a spinning machine such as a ring spinning machine and a ring twisting machine, a single drive motor drives a plurality of rotating shafts, and the rotating shafts are connected by gears. In recent years, oil has been used instead of grease for lubricating gears and bearings for high-speed operation of machine bases. Conventionally, oil is supplied to gears and bearings as shown in FIG.
21 and the gear housing 22 via the oil pan 23 disposed above the gear 22 and the tubes 24 and 25.
Each is done independently. The oil O supplied to the gear 22 is collected in the lower oil pan 26 along the tooth flanks and side surfaces, and the oil O supplied to the bearing housing 21 lubricates the bearing 27 and then overflows from the bearing housing 21 to lower the oil pan. Collected in 26. Lower oil pan
The oil O collected in 26 is pumped up by the oil pump 28 and supplied again to the oil pan 23.

[Problems to be Solved by the Invention] However, in the conventional device, the bearing housing 21
Since it is supplied to the gear 22 and the gear 22 via independent tubes 24 and 25, respectively, the number of tubes attached to the oil pan 23 increases and the total amount of oil flowing through the tubes increases. Bread 23 is needed. Therefore, there is a problem that not only the installation space of the oil pan becomes large, but also an oil pump having a large capacity is required, the size of the entire apparatus becomes large, and the oil use efficiency decreases. Also, since oil is dripped from above the gear, a large amount of oil splashes, and unless the gear accommodating chamber is fully sealed, the oil may leak to the outside. There is also the problem that becomes complicated.

The present invention has been made in view of the above problems, and an object thereof is to reduce the number of oil supply tubes and the capacity of an oil pan and an oil pump, and further, to provide an oil seal for a gear accommodating chamber. An object of the present invention is to provide an oil lubrication device for gears in a spinning machine having a simple structure.

[Means for Solving the Problems] In order to achieve the above-mentioned object, in the present invention, a gear is attached to a protruding portion from a bearing housing of a rotating shaft rotatably supported with respect to the bearing housing. Was integrally rotatably fixed, a collar for transmitting lubricating oil was mounted between the gear of the rotating shaft and the bearing housing with an appropriate clearance, and an oil supply pipe from an oil pan was connected to the bearing housing.

[Operation] Lubricating oil is supplied from the oil supply pipe connected to the oil pan to the bearing housing, temporarily collects in the bearing housing to lubricate the bearing, and then flows out of the bearing housing. The oil that has flowed out travels along the surface of the collar and moves to the side surface of the gear. Furthermore, gravity and centrifugal force cause the oil to flow toward the tooth tips and lubricate the tooth tips.

[Embodiment] An embodiment embodying the present invention will be described below with reference to FIGS.

As shown in FIG. 1, a rotary shaft 4 is rotatably supported via bearings 2 and 3 housed in a bearing housing 1. Gears 5 and 6 are provided at both ends of the rotary shaft 4
It is fixed so that it can rotate together with. The gears 5 and 6 mesh with the other gears 7 and 8, respectively. The rotating shaft 4 has a gear
Collar for lubricating oil transmission between 5,6 and bearings 2,3
Reference numerals 9 and 10 are fitted between the side surfaces of the gears 5 and 6 and the outer surface of the bearing housing 1 with appropriate clearances. The clearance is set to a size that allows the oil to penetrate between them due to surface tension. The collars 9 and 10 are made of resin and have an outer diameter slightly smaller than the tooth circles of the gears 5 and 6.

An oil pan 11 is arranged above the bearing housing 1, and an oil supply pipe 12 is connected to the oil pan 11 and one end thereof is connected to an oil supply portion 13 formed in the bearing housing 1. A lower oil pan 14 is arranged below the bearing housing 1 and the gears 5 and 6, and oil O in the lower oil pan 14 is pumped up by an oil pump 15 and supplied to the oil pan 11. .

 Next, the operation of the device configured as described above will be described.

The oil O in the oil pan 11 is supplied into the bearing housing 1 via the oil supply pipe 12 and the oil supply section 13,
Bearing in the bearing housing 1
It flows out of the bearing housing 1 through 2, 3 and the bearings 2, 3 are lubricated. The oil O flowing out enters the gap between the collars 9 and 10 and the bearing housing 1 due to surface tension, moves to the outer peripheral side of the collars 9 and 10 by centrifugal force and gravity, and is transmitted to the side faces of the gears 5 and 6. , Further toward the tooth tips of the gears 5,6 by moving them to the gears 5,6
Lubrication of the tooth tips is performed. Since the oil O is continuously supplied to the bearing housing 1 from the oil supply pipe 12, the oil O continuously flows out of the bearing housing 1, and the oil O is continuously supplied to the gears 5 and 6 as described above. Is supplied to. Then, the oil O that has moved to the tips of the gears 5 and 6 falls into the lower oil pan 14 due to its own weight,
Oil O collected in the lower oil pan 14 is an oil pump
It is returned to the upper oil pan 11 again by 15 and reused.

Unlike the conventional case, the oil O is not directly dropped and supplied to the gears 5 and 6, but is supplied to the gears 5 and 6 along the surfaces of the collars 9 and 10, so that the oil O is not splashed. Therefore, the oil seal structure of the gear housing is simplified. or,
When a resin is used as the material for the collars 9 and 10 as in this embodiment, sound is less generated as compared with the case where the collar is made of metal, and the possibility of damaging the rotary shaft when mounted on the rotary shaft is also low.

The present invention is not limited to the above-described embodiment. For example, as shown in FIG. 3, the peripheral edges of the collars 9 and 10 are tapered so that the gears 5 and 6 side (only one side is shown) are expanded. You may form. When formed in this way, the oil O that has moved to the peripheral portions of the collars 9 and 10 will move along the tapered surfaces to the gears 5 and 6
It becomes easy to move to the side.

[Effects of the Invention] As described in detail above, according to the present invention, it is not necessary to directly supply oil from the oil pan to the gears, so that an oil supply tube for the gears is unnecessary and the number of oil supply tubes is reduced. As a result, the amount of oil required is reduced, the capacity of the oil pan can be reduced, the oil flow rate can be reduced, the oil pump can be downsized, and the space occupied by the entire apparatus can be reduced. In addition, the oil is not splashed when the oil is directly dropped on the gear, and the oil seal structure of the gear accommodating chamber is simplified, which is an excellent effect.

[Brief description of drawings]

FIGS. 1 and 2 show an embodiment embodying the present invention. FIG. 1 is a partially omitted front sectional view, FIG. 2 is a partially enlarged view, and FIG. 3 is a main sectional front view of a modified example. FIG. 4 is a partially omitted front sectional view of a conventional example. Bearing housing 1, bearings 2, 3, rotating shaft 4,
Gears 5, 6, collars 9, 10, oil pan 11, oil supply pipe 12, oil O.

Claims (1)

[Scope of utility model registration request] 1. A gear, which is rotatably supported by a bearing housing via a bearing, is fixed to a protruding portion from the bearing housing of the rotary shaft so as to rotate integrally with the rotary shaft, and the gear of the rotary shaft and the bearing housing. An oil lubrication device for gears in spinning machines, in which a collar for transmitting lubricating oil is mounted between the bearing and the housing with an appropriate clearance, and an oil supply pipe from the oil pan is connected to the bearing housing.