JPH0770834A - Method for lubricating gear in spinning machine and device therefor - Google Patents

Abstract

PURPOSE:To provide the subject method and device designed to prevent a gear row to be driven in such a mode that at least part thereof is dipped in a lubricating oil from being delayed in startup by the lubricating oil as a load. CONSTITUTION:The oil discharge tube 2 of a gear box 1 is connected to the suction side of a pump 6 through hoses 3, 5 via an oil filter 4. The delivery side of the pump 6 is connected to a joint member 12 connected, through hoses 7, 8, 11 via two changeover valves 9,10, to the oil feed tube 13 of the gear box 1. The changeover valve 9 is connected to the oil feed tube 16a of an oil tank 16, while the changeover valve 10 is connected to the drain of the oil tank 16. The joint member 12 is connected via a hose 15 to an oil feed tube 14. Before frame start-up, lubricating oil is drawn, in advance, into the oil tank 16, and simultaneously with the frame start-up, both the pump 6 and the changeover valves 9,10 are driven, and a lubricating oil is fed from the oil tank 16 into the gear box 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gear lubrication method and a gear lubrication device in a spinning machine, which lubricates a gear train by driving the gear train at least partially immersed in lubricating oil.

[0002]

2. Description of the Related Art As a method of lubricating a gear in a spinning machine, there is a lubricating method in which a gear is driven in a state where a part thereof is immersed in lubricating oil. For example, a lifting device in a ring spinning machine has a switching mechanism housed in a gear box. The gear train that constitutes the switching mechanism is lubricated by being driven while being partially immersed in the lubricating oil stored in the gear box. The switching mechanism includes an input shaft and an output shaft, and has a function of converting unidirectional rotation input from the input shaft into forward and reverse rotations via a gear train and outputting the same to the output shaft. Then, the ring rail is moved up and down based on the forward / reverse rotation of the line shaft caused by the rotational force from the motor being converted into the forward / reverse rotation via the switching mechanism.

The input shaft and the output shaft are axially supported in parallel with each other in a positional relationship such that the input shaft is on the lower side in the gear box with a predetermined space therebetween in the vertical direction, and a forward rotation gear train is provided between both shafts. A reverse gear train is provided. Both gear trains are equipped with multi-plate clutches consisting of several clutch plates on the input shaft side, so that the input shaft and the output shaft are operatively connected via the gear train on the side corresponding to the engaged clutch. It has become. That is, the output shaft rotates normally through the forward rotation gear train, and the output shaft rotates reversely through the reverse rotation gear train. Both clutches are alternately connected in a predetermined cycle, and the line shaft operatively connected to the output shaft is normally and reversely rotated, so that the ring rail is moved up and down with a predetermined stroke. Normally, the gear and clutch plate on the input shaft side are soaked to about half with the lubricating oil stored in the gear box.

As shown in FIG. 4, the gear box 41 has one
One drain pipe 42 and two oil feed pipes 43, 44 are provided, and the oil drain pipe 42 is connected to a joint member 50 fixed to the oil feed pipe 43 via an oil filter 48 and a pump 49 sequentially through hoses 45, 46, 47. It is connected. The joint member 50 and the oil supply pipe 44 are connected via the hose 51. Pump 49 is driven during machine operation,
The lubricating oil stored in the gear box 41 is the hose 45-
It is circulated in the direction of the arrow in the figure through 47 and 51, filtered by the oil filter 48, and then supplied from the oil supply pipes 43 and 44. And the gear box 41
Lubrication of the internal gear train and each rotating shaft is performed by the lubricating oil supplied from the oil supply pipes 43 and 44 and the lubricating oil carried upward by the rotation of the input shaft side gear that is partially immersed in the lubricating oil. Was there.

[0005]

However, since the gear on the input shaft side is immersed in the lubricating oil, the lubricating oil may act as a load resistance at the time of starting the machine stand, and a delay in starting the gear may occur. It was Also, in the case where the clutch is soaked in the lubricating oil, the lubricating oil is present between the clutch plates, so that the clutch plates slip and a clutch connection delay occurs. In some cases, it became noticeable. In particular, since the viscosity of the lubricating oil becomes high during cold weather, the delay in starting the gear was significant.

When the gear is delayed in starting, the starting timing of the ring rail is delayed by one breath with respect to the starting of the front roller and the spindle, and the rotation speed of the front roller and the spindle is always larger than the moving speed of the ring rail by the delay in starting the ring rail. It will be in a state of leading only. Therefore, in the reversing process in which the ring rail is reversed at the first top position, a yarn length longer than the proper spun yarn length in the reversing process is spun out from the front roller, and between the front roller and the ring rail. Thread slack occurs. Thereafter, as the ring rail descends, the once loosened yarn is pulled with a force, so that excessive tension is applied to the yarn and the yarn is broken. For this reason, during cold weather, more yarn breakages than usual occurred at the start of machine operation due to the delay in gear start.

The present invention has been made in view of the above problems, and an object thereof is to apply a lubricating oil as a load in a gear mechanism driven in a state where at least a part of a gear train is immersed in the lubricating oil. It is an object of the present invention to provide a lubricating method and a lubricating device for a lifting device in a spinning machine, which can prevent a starting delay of a generated gear.

[0008]

In order to solve the above-mentioned problems, the invention according to claim 1 is such that at least part of the gear train is driven while the spinning machine is operating, and the clutch is driven by being immersed in the lubricating oil. In a gear lubrication device for a spinning machine that lubricates a gear train, the lubricant oil is reserved from a lubricant oil storage tank that stores the lubricant oil in advance so that at least a part of the gear train is immersed in the lubricant oil before starting machine operation. The lubricating oil stored in the auxiliary tank was supplied to the lubricating oil storage tank so that the gear train was temporarily extracted from the tank and the gear train was not soaked in the lubricating oil at the time of starting the machine stand operation.

According to the second aspect of the present invention, it is possible to store a predetermined amount of lubricating oil which has an oil discharge port and an oil supply port and which makes at least part of a gear train provided with a clutch immersed in the lubricating oil. A gear box, a backup tank for temporarily storing the lubricating oil in the gear box, a pump for sucking the lubricating oil in the gear box from the oil discharge port and discharging the lubricating oil into the backup tank or the oil supply port, and from the pump A flow passage switching valve is provided which can switch between a withdrawal position for storing the discharged lubricating oil in a spare tank and a circulation position for circulating the lubricating oil to the oil supply port.

According to a third aspect of the present invention, in the gear lubrication device for a spinning machine according to the second aspect, a gear shaft fitted with a gear housed in the gear box is opened to the outside through an opening. A hollow portion and a communication hole that communicates the hollow portion and the outer peripheral surface are formed, and the oil supply port is connected to the opening.

[0011]

According to the first aspect of the present invention, the lubricating oil in the lubricating oil storage tank is drained in advance to the spare tank so that at least the gear train is not substantially immersed in the lubricating oil before the operation of the machine base is started.
Then, the lubricating oil stored in the spare tank at the time of starting the machine operation is supplied to the lubricating oil storage tank, and the gear train is started to be driven in a state where it is not soaked in the lubricating oil at the time of starting. for that reason,
Since the gear train is in a state where it is not substantially immersed in the lubricating oil, there is no delay in starting.

According to the second aspect of the present invention, before the gear train is started, the pump is driven in a state where the flow path switching valve is arranged at the extraction position in advance and the lubricating oil is stored in the spare tank. . As a result, the gear train in the gearbox is in a state where it is almost not immersed in the lubricating oil. Then, the gear train is started. When the gear train is started, the flow path switching valve is switched to the circulation position and the pump is driven. Then, the lubricating oil is supplied from the spare tank into the gearbox so that the gear train is not substantially immersed in the lubricating oil when the gear train is started. Therefore, since the gear train is started in a state where it is not soaked in lubricating oil, there is no delay in starting. After the gear train is started, at least a part of the gear train is immersed in the lubricating oil and lubricated.

According to the third aspect of the present invention, the lubricating oil supplied into the gear box is scattered from the communication hole through the hollow part in the gear shaft being driven through the opening connected to the oil supply port. To be done. Therefore, the lubricating oil is uniformly and surely supplied to the gear train to be lubricated.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment embodying the present invention will now be described with reference to FIGS.
It will be described with reference to FIG. As shown in FIG. 1, a gear box 1 as a lubricating oil storage tank has an upper half 1a and a lower half 1b.
Are connected to each other, and an oil drain pipe 2 as an oil drain port is fixed to the lower portion of the gear box 1. The oil drain pipe 2 is connected to the inlet side of the oil filter 4 via the hose 3,
The outlet side of the oil filter 4 is connected to the pump 6 via the hose 5.
Is connected to the suction side of. The discharge side of the pump 6 is sequentially connected to two switching valves (electromagnetic switching valves) 9 and 10 via hoses 7 and 8, and the switching valve 10 is further connected to a trifurcated joint member 12 via a hose 11. ing. The joint member 12 is connected to the gear box 1 via the oil supply pipe 13.
Is fixed at the joining position between the upper half portion 1a and the lower half portion 1b. The joint member 12 is connected to an oil supply pipe 14 fixed to the upper surface of the gear box 1 via a hose 15. An oil tank 16 is arranged at a position corresponding to the two switching valves 9 and 10. Switching valve 9
Is connected to an oil supply pipe 16a fixed to the upper surface of the oil tank 16 via a hose 17, and the switching valve 10 is connected to a drain (not shown) formed on the lower surface of the oil tank 16 via a hose 18. There is. The flow paths of the switching valves 9 and 10 can be switched between a circulating position for sending the lubricating oil from the pump 6 to the gear box 1 and an extracting position for storing the lubricating oil from the pump 6 in the oil tank 16. An air vent hole (not shown) is formed in the oil tank 16.

As shown in FIG. 2, an input shaft 19 as a gear shaft is horizontally supported at a joining position between the upper half 1a and the lower half 1b in the gear box 1 and is spaced at a predetermined interval. The output shaft 20 is axially supported in parallel with the input shaft 19 at the upper position. One end of each of the input shaft 19 and the output shaft 20 is in a state of protruding outward from the gear box 1. Three gear trains 21, 22, 23 are arranged between the input shaft 19 and the output shaft 20. Each gear train 21
˜23 on the input shaft 19 side, several clutch plates 24a,
Multi-plate type clutches 24, 25, including 25a, 26a,
26 are provided. The gears 27, 28, 29 on the input shaft 19 side that form the gear trains 21-23 are the gears 27, 2
8 meshes with gears 30 and 31 fitted to the output shaft 20, and gear 29 meshes with a gear 32 fitted to the output shaft 20 via an intermediate gear 33.

The clutches 24 to 26 are drive-controlled by a controller C (shown in FIG. 3), and any one of them is always connected. The input shaft 19 and the output shaft 20 are operatively connected via the gear trains 21 to 23 corresponding to the clutches 24 to 26 in the connected state. Each of the gear trains 21 to 23 is set to a predetermined rotation ratio, the output shaft is normally rotated at a high speed by passing through the gear train 21, is rotated at a low speed by passing through the gear train 22, and is rotated at a reverse speed by passing through the gear train 23. It is supposed to be done. The input shaft 19 is operatively connected to the lifting motor 34 (shown in FIG. 3), and the output shaft 20 is operatively connected to a line shaft (not shown). The ring rail rises when the output shaft 20 rotates in the normal direction and descends when the output shaft 20 rotates in the reverse direction.

As shown in FIG. 2, the inside of the input shaft 19 is a hollow oil passage 19a, and the oil passage 19a and the outer peripheral surface are connected by a number of oil supply holes 19b. The input shaft 19 is rotatably connected to the oil supply pipe 13 at the left end of the figure, and the lubricating oil from the oil supply pipe 13 can flow into the oil passage 19a. A worm gear (not shown) is arranged in the gear box 1 corresponding to the oil supply pipe 14, and the worm gear is mainly lubricated by the lubricating oil supplied from the oil supply pipe 14.

The gear lubrication device is driven and controlled by a control device C for driving and controlling the machine base. As shown in FIG. 3, the control device C includes a pump 6, two switching valves 9, 1
0 and the lifting motor 34 are electrically connected. When the control device C receives the operation start signal S1 from the machine base, it drives the pump 6 and switches the switching valves 9 and 10 to the circulation position. When the controller C receives the operation stop signal S2 from the machine base, the controller C stops driving the pump 6 and switches the switching valves 9 and 10 to the extraction positions. After the control device C inputs the operation stop signal S2, the pump 6 is stopped after being continuously driven for a predetermined time capable of extracting all the lubricating oil in the gear box 1 into the oil tank 16. .

Next, the operation of the gear lubrication device constructed as described above will be described. Before the operation of the machine base, all the lubricating oil is drained from the gear box 1 to the oil tank 16 at the end of the previous machine operation, so that the lubricating oil is almost empty in the gear box 1 and each switching is performed. Valve 9,1
0 is arranged at the extraction position. When the control device C receives the operation start signal S1 from the machine base, it drives the pump 6 and the lifting motor 34 and switches the switching valves 9 and 10 to the circulation position. In the gear box 1, the input shaft 19 is rotationally driven based on the driving of the lifting motor 34 and the clutches 24 to 26 are sequentially and repeatedly connected at a predetermined cycle, and the output shaft 19 is connected via the gear trains 21 to 23.
Sequentially repeats high-speed forward rotation, low-speed forward rotation, and reverse rotation. Simultaneously with this start, in the gear box 1, the lubricating oil is scattered from a large number of oil supply holes 19b formed on the outer peripheral surface of the input shaft 19, and the lubricating oil is supplied from a position above the worm gear via the oil supply pipe 14. To be done.

At the time of starting, the lubricating oil is almost empty in the gear box 1 and the gear 2 on the input shaft 19 side is
7 to 29 and some of the clutch plates 24a to 26a are not in a state of being immersed in the lubricating oil. Therefore, for example, even if the viscosity of the lubricating oil becomes high during cold weather, the gear 2 can be changed from the highly viscous lubricating oil.
7 to 29 do not receive load resistance at the time of starting. Further, since there is no lubricating oil between the gears 27 to 29 and the clutch plates 24a to 26a, the clutches 24 to 26 are immediately engaged without slipping. As a result, each gear train 21-23 is driven at an appropriate start timing.

Then, the ring rail is started up at substantially the same time as the setting of the front roller and the spindle, and when the ring rail reaches the first top position, the spinning speed of the front roller corresponds to the moving speed of the ring rail. It will be speed. Therefore, the yarn length spun from the front roller when the ring rail is reversed becomes an appropriate yarn length, and the yarn is not excessively loosened between the front roller and the ring rail. As a result, the excessively loosened yarn is not suddenly pulled when the ring rail descends, and the yarn breakage does not occur.

When a predetermined time has passed from the start of operation of the machine base,
All the lubricating oil in the oil tank 16 moves into the gear box 1. In this state, the gears 27 to 2 on the input shaft 19 side
9 and the clutch plates 24a to 26a are soaked in the lubricating oil up to about half. During operation of the machine base, the lubricating oil in the gearbox is circulated through the oil filter 4 based on the drive of the pump 6, and is fed into the gearbox 1 from the oil supply hole 19b and the oil supply pipe 14. And each gear train 21-2
3, the input shaft 19 and the output shaft 20 are mainly the oil supply holes 19
The lubricating oil from b and the lubricating oil carried upward by the rotation of the gears 27 to 29 are lubricated and cooled.
~ 26 are cooled by the immersed lubricating oil.

Then, when the pipe is full, the control device C is moved from the machine base.
When the operation stop signal S2 is input to the control device C, the control device C stops the driving of the lifting motor 34 based on the operation stop signal S2 and switches the switching valves 9 and 10 to the extraction positions. The pump 6 is continuously driven for a predetermined time after the control device C inputs the operation stop signal S2, and the gear box 1
All of the lubricating oil inside is transferred to the oil tank 16.
The drive of the pump 6 is stopped when a predetermined time has elapsed from the input of the operation stop signal S2. In this way, the operation of the ring spinning frame is completed. At the start of the machine operation, the gears 27 to 29 and the clutch plates 24a to 2 on the input shaft 19 side.
Although 6a is not immersed in the lubricating oil, the lubricating oil is scattered from the oil supply hole 19b of the input shaft 19 at the same time as the operation is started, and the temperature is not rising due to friction, so there is no fear of wear.

As described above in detail, according to this embodiment, the gears 27 to 29 and the clutch plates 24a to 26a on the input shaft 19 side are kept in a state where they are not submerged in the lubricating oil at the time of starting the machine base operation. It is possible to prevent the starting delay of 21 to 23. In particular, it is possible to prevent the start delay of the gear trains 21 to 23 even if the lubricating oil has a high viscosity in cold weather or the like. Therefore, the moving speed of the ring rail and the spinning speed of the front roller are accurately synchronized, and the yarn breakage caused by the delay in starting the gear trains 21 to 23 is reliably prevented. or,
Since the lubricating oil supplied into the gear box 1 is scattered from the oil supply hole 19b of the input shaft 19, the gear trains 21 to 23 to be lubricated can be uniformly and surely lubricated.

The present invention is not limited to the above embodiments, but can be modified as follows, for example, without departing from the spirit of the invention. (1) In the above embodiment, the amount of lubricating oil supplied to the gear box 1 was set constant, but the amount of lubricating oil supplied to the gear box 1 such as by allowing some of the lubricating oil to remain in the oil tank 16. May be changed. For example, the amount of oil may be set to a small amount during cold weather when the temperature rise due to friction or the like is relatively small. It is also effective to change the amount of oil according to the spinning conditions.For example, when the rotation speed of the gear train is slow and the starting delay of the gear train is prone to occur, the lubricating oil amount is set to be small, A large amount of lubricating oil may be set so that wear of the gears can be suppressed when the count of the gear train is high. In this case, the oil amount can be adjusted by providing the gear box 1 and the oil tank 16 with a level sensor for detecting the oil amount.

(2) In the above embodiment, the clutches 24 to 26 are used.
However, the clutch may not always be immersed in the lubricating oil by, for example, reversing the vertical relationship between the input shaft 19 and the output shaft 20. In this case, the gear train is lubricated if a part of the gears other than the clutch forming the gear train is immersed in the lubricating oil.

(3) Although the lubricating oil is circulated during operation of the machine base in the above embodiment, it is not always necessary to circulate the lubricating oil unless there is a worm gear or the like that requires continuous oil supply during operation. . For example, lubrication oil in the oil tank 1
The drive of the pump 6 may be stopped after the supply from 6 to the gear box 1 is completed, and the gear train may be lubricated by the lubricating action based on the rotation of the gear immersed in the lubricating oil during the machine base operation.

(4) In the above-mentioned embodiment, the pump 6 removes the lubricating oil from the oil tank 16, but it does not have to rely on the pump. For example, the oil tank may be arranged at a position lower than the gear box, and the lubricating oil in the gear box may be poured into the oil tank by its own weight by opening and closing the switching valve.

(5) Although all of the lubricating oil is drained to the oil tank 16 in the above embodiment, it is not necessary to drain all the lubricating oil. For example, the gear may be simply pulled out to the extent that the gear is not immersed in the lubricating oil. In this case, a level sensor for detecting the amount of lubricating oil may be provided in the gear box 1 or the oil tank 16, and the amount of withdrawal may be controlled by the level sensor. In addition, the level sensor may detect an oil shortage and warn of the oil shortage.

(6) In the above embodiment, the lubricating oil is used as the input shaft 19
However, it is not always necessary to spray the lubricating oil from the oil supply hole of the rotary shaft. Further, the lubricating oil spraying from the oil supply hole of the rotary shaft into which the gear is fitted is not limited to the input shaft 19. For example, the lubricating oil may be sprayed from the output shaft 20 or the shafts 19 and 20 may be sprayed. Good.

(7) In the above embodiment, the supply of the lubricating oil into the gear box 1 is started at the same time when the operation of the machine base is started, and the lubricating oil is drained to the oil tank 16 after the operation of the machine base is stopped. The supply start time and the sampling time may be set appropriately. For example, under the condition that the gear and the clutch are not soaked in the lubricating oil at the time of starting, the lubricating oil is extracted from the gear box to the oil tank 16 immediately before the operation of the machine base, or the lubricating oil supply start timing is shifted before and after the start of the gear. You may set it.

(8) The present invention may be applied to a spinning machine such as a ring twisting machine other than the ring spinning machine.

[0033]

As described in detail above, according to the present invention, in the gear mechanism driven in a state where at least a part of the gear train is immersed in the lubricating oil, the starting delay of the gear caused by the lubricating oil as a load. The excellent effect of being able to prevent is exhibited. According to the third aspect of the invention, the lubricating oil is scattered from the communication hole formed in the gear shaft into which the gear is fitted, so that the gear train to be lubricated is uniformly and surely lubricated.

[Brief description of drawings]

FIG. 1 is a perspective view showing a gear lubrication device in an embodiment embodying the present invention.

FIG. 2 is a partially cutaway sectional view showing a switching mechanism.

FIG. 3 is a block diagram showing an electrical configuration of a gear lubrication device.

FIG. 4 is a perspective view showing a gear lubrication device in the related art.

[Explanation of Codes] 1 ... Gear box as lubricating oil storage tank, 2 ... Oil discharge pipe as oil discharge port, 6 ... Pump, 9, 10 ... Switching valve as flow path switching valve, 13, 14 ... As oil supply port Refueling pipe, 16
... oil tank as a spare tank, 19 ... input shaft as a gear shaft, 19a ... oil passage as a hollow portion, 19
b ... Oil supply hole as communication hole, 21-23 ... Gear train, 24
~ 26 ... clutch, 24a ~ 26a ... clutch plate, 27
~ 29 ... Gear.

Claims (3)

[Claims] 1. A gear lubrication device for a spinning machine, wherein at least a part of a gear train is driven in a state where it is immersed in a lubricating oil during the operation of the spinning machine stand to lubricate a gear train provided with a clutch. Before, the lubricating oil is temporarily drained from the lubricating oil storage tank that stores the lubricating oil in a state where at least a part of the gear train is immersed in the lubricating oil, and the gear train becomes almost lubricating oil at the time of starting the machine stand operation. A method for gear lubrication in a spinning machine, which supplies lubricating oil stored in a spare tank to a lubricating oil storage tank so that the lubricating oil does not get soaked. 2. A gear box having an oil discharge port and an oil supply port and capable of storing a predetermined amount of lubricating oil so that at least a part of a gear train having a clutch is immersed in the lubricating oil, and the gear box. A reserve tank for temporarily storing the lubricating oil therein, a pump for sucking the lubricant oil in the gearbox from the oil discharge port and discharging it to the spare tank or the oil supply port, and the lubricating oil discharged from the pump, A gear lubrication device for a spinning machine, comprising: a flow path switching valve that can switch between a withdrawal position for storing in a spare tank and a circulation position for circulating the oil to the oil supply port. 3. The gear lubrication device for a spinning machine according to claim 2, wherein a hollow portion opened to the outside through an opening is formed in a gear shaft into which a gear housed in the gear box is fitted, and the hollow portion. A gear lubrication device in a spinning machine, wherein a communication hole that communicates with the outer peripheral surface is formed, and the oil supply port is connected to the opening.