JPH0721307U - Washing pulley - Google Patents

Abstract

(57) [Summary] [Purpose] A washing pulley for guides that can automatically follow the movement of the wire saw loop and a wire saw that effectively rinses the chips attached to the wire saw and supplies water to the working surface of the wire saw. Provided is a drive water washing pulley having high power transmission efficiency. A guide water washing pulley having a pulley inner water channel pivotally mounted on a fixed shaft having an inner shaft water channel, wherein a pair of water seals are provided inside the pair of bearings of the pivotally attached portion on the outer side of the bearing. A drive water washing pulley having a pair of dust seals and an in-shaft water channel, and having a pulley inner water channel fixed to a rotating shaft driven by an external power, the pair being a driving water-washing pulley supporting the rotating shaft. A water supply coupling is provided on one of the outer sides of the bearing in the axial direction via a water seal, and a dust seal is provided on the other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water washing pulley, and more particularly to a water washing pulley suitable for washing or supplying water to a wire saw with chips.

[0002]

[Prior art and problems]

 Conventionally, it is often the case that marble or concrete is cut by winding a wire saw and driving it with a drive pulley.

In this case, since the wire saw generates heat due to friction during the cutting operation, water is applied to the cutting portion entry side with a hose to cool it. At the same time, the chips attached to the wire saw are also cleaned and removed, but this is not enough.

[0004] Therefore, there is a problem that the cutting efficiency with respect to the portion to be cut is lowered by the chips remaining on the wire saw.

In addition, in the method of sprinkling water with a hose, it is impossible to continuously supply water to a correct place unless an operator adjusts the position of the hose occasionally as the wire saw loop moves. There was a problem. This adjustment work had to be done after stopping the wire saw once in a dangerous place, which was dangerous and troublesome, and the operating rate did not increase. Further, in the conventional drive pulley 5, it was not uncommon for slip to occur due to pasty chips adhering to the wire saw 19 resulting in uncertain power transmission. Then, as a result of earnest research, the present inventor effectively washed the wire saw and / or the wire saw by radially discharging the water supplied from the pulley itself by using a swivel joint or the like. We arrived at the present invention knowing that water could be supplied to.

[0006]

[Object of the Invention] The purpose of the present invention is to effectively wash the chips attached to the wire saw and to supply water to the wire saw.

An object of the present invention is to provide a water rinsing pulley for guides that can be automatically followed by the movement of the wire saw loop by being arranged at at least one position of the loop of the wire saw. In addition, it is to provide a driving water washing pulley with high power transmission efficiency for the wire saw.

[0008]

[Constitution of device]

 According to the present invention, the fixed shaft 27 having the in-shaft water passages 30 and 31 and the water supplied from the in-shaft water passages 30 and 31 having the pulley inner water passage 41 are distributed to the wire saw 19 which engages with the concave section tire 42. Pulley 40 for rinsing and / or supplying water to the wire saw 19, and at least one pair of bearings 34, 34 for pivotally attaching the pulley 40 to the fixed shaft 27, and at least one bearing provided between the bearings 34, 34. A guide water washing pulley (claim 1) and an axial water passage, characterized by comprising a pair of water seals 32, 32 and a pair of dust seals 50, 50 provided outside the bearings 34, 34. 30 and 31, supported on the casing via at least one pair of bearings 34, 34, pivotally connected via a water seal 32 to a stationary water supply coupling 35, and externally Water is supplied to the wire saw 19 which has a rotary shaft 54 driven by power and a pulley inner water passage 41 and which is supplied from the shaft inner water passages 30 and 31 and which engages with the concave section tire 42. A drive water washing pulley (claim 2) is provided, which comprises a pulley 40A for supplying water and / or water, and a fixing mechanism for fixing the pulley 40A to the rotary shaft 54 (claim 2).

The present invention will be described in detail below with reference to examples.

[0010]

【Example】

 1 is a plan view of a guide washing pulley according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view of a drive washing pulley according to another embodiment of the present invention. Is a perspective view showing the action of the guide washing pulley according to the embodiment, FIG. 5 is a partial sectional view of the essential part of the embodiment as seen from the tangential direction of the pulley, and FIGS. FIG. 9 is an overall side view showing a usage example A, B, C of the devised embodiment, FIG. 9 is a sectional view of a main part showing a conventional example, and FIG.

1, 2, 3, 4, 5, 6, 7, 7, 8, 9, and 10, 1 is an object to be cut, 1 B is an uncut portion, 5 is a drive pulley, 5 A is a drive washing pulley, 6 Is a guide pulley, 7 is an inlet side guide pulley, 7A is an inlet side guide washing pulley, 8 is an outlet side guide pulley, 8A is an outlet side guide washing pulley, 10 is cooling water, 11 is a hose (nozzle), 19 Is a wire saw, 20 is a wire, 21 is a wire coating, 22 is diamond beads, 23 is a water supply valve, 24 is a water supply nipple, 25 is a water supply tank / frame, 27 is a fixed shaft, 28 is a fixed shaft mounting screw, 30, 31 Is a water channel in the shaft, 32 and 32A are water seals, 33 is a collar, 34 is a bearing, 35 is a water supply coupling, 36 is a drain hole, 40 is a water washing pulley for guide, 40A is a water washing pulley for drive, and 41 is a pulley. Within Water channel, 42 a tire with a concave section (rubber ring), 44 an external force (hydraulic motor), 46 a gear, 47 a gear, 48 a casing (gearbox), 50 a dust seal, 53 a drive shaft, 54 a rotation The shaft and 55 are bolts.

First, the use example A will be described. In the use example A, a guide washing pulley as shown in FIGS. 1 and 2 which is one of the embodiments (apparatus) is used.

In FIGS. 1 and 2, a water supply nipple 24 is screwed into the left side of the water supply tank / frame 25 that also functions as a buffer for water pressure fluctuations. A fixed shaft 27 is screwed into the right side of the water tank / combined frame 25 via a fixed shaft mounting screw. The fixed shaft 27 is provided with in-shaft water passages 30 and 31. The water supplied from the water supply nipple 24 moves in the direction of the arrow, passes through the radial or spiral radial pulley inner water passage 41, and has a concave cross section. Water is supplied to the wire saw 19 wound around the tire (rubber ring) 42. The pulley 40 is pivotally attached to the fixed shaft 27 via a pair of bearings 34, 34. A pair of water seals 32, 32 are provided between the pair of bearings 34, 34 in the axial direction with a water passage extending from the shaft inner water passage 31 to the pulley inner water passage 41 interposed therebetween. In this embodiment, the water seals 32, 32 are fixedly attached to the inner diameter of the pulley 40, and the lip of the water seal 32, 32 is slidably rotated on the collar 33. Therefore, water does not wet the bearings 34, 34. Further, a pair of dust seals 50, 50 are provided adjacent to both outer sides of the bearings 34, 34 so that the lips of the left and right bosses of the pulley are licked, and it is possible to prevent dust of chips from entering the bearing. .

When such a guide water washing pulley 7A is arranged at the inlet of the cutting portion as shown in FIG. 6 to supply water, water is not wasted as compared with the conventional water supply using a hose (see FIG. 10). Water is supplied to Yaso 19.

The usage example B of FIG. 7 is an example in which the guide water washing pulley 8A which is the device of the present invention is also used for the cut outlet.

As described above, when the guide water washing pulley is used at the entrance and the exit of the cut end, the chips attached to the wire saw are immediately washed away, so that the chips do not dry and adhere even during a long loop.

Further, the driving water washing pulley will be described.

In FIG. 3, a rotary shaft 54 is pivotally attached to a casing (gear box) 48 via a pair of bearings 34 and 34.

A driven gear 47 is fixed to the center of the rotary shaft 54. A dust seal 50 is provided on the left side of the pair of bearings 34, 34 to prevent dust such as chips and water from entering the bearing 34. The dust seal 50 may be a water seal, and may have two stages.

A water supply coupling 35 is fixed to the casing 48 on the right side of the rotary shaft 54 in a lid-like manner, and a water supply valve 23 is fixed to the right end thereof. Two water seals 32, 32 are provided on the inner diameter of the water supply coupling. Water flows through the in-shaft water passages 30, 31 and the in-pulley passage 41 as shown by arrows, and engages with the concave section tire 42. Water is supplied to the combined wire saw 19.

Further, another water seal 32A of the same type is provided on the inner side of the right side of the rotary shaft 54 at a slight distance, and water entering due to abrasion of the two water seals on the right side is centrifugal force or Due to gravity, it is discharged through the drain hole 36. Here, the water seal 32A also serves as a dust seal for the right bearing. In driving the water washing pulley 40A, torque is transmitted from the hydraulic motor 44 to the driving gear 46, and the driving gear 46 is meshed with a driven gear fixed to the rotary shaft 54 and drives it. A bolt 55 is screwed into the right end portion of the rotary shaft 54, and the drive pulley 40A is fixed to the rotary shaft 54 by a spline, a key (not shown) or the like.

Here, the use example C shown in FIG. 8 will be described.

In FIG. 8, a usage example C is the same as the usage example B except that a driving water washing pulley 5A is used instead of the driving pulley 5 in FIG.

When the driving water washing pulley is applied, the washing effect of the wire saw is further improved, and the coefficient of friction between the tire having the concave section and the wire saw becomes large, so that the power transmission efficiency is significantly improved. In addition to the usage examples A, B, and C, even if only the driving water washing pulley 5A is used, there is a considerable effect in improving the driving force transmission efficiency. Naturally, the combined use of the inlet-side guide washing pulley 7A and the driving washing pulley 5A as in Use Example A is most effective in terms of cost.

[0025]

[Function of the device]

 The operation of the present invention will be described with reference to FIGS.

In FIG. 4, as described above, water is supplied to the wire saw 19 wound through the radial pulley inner water passage 41, and the wire saw 19 is engaged with the guide washing pulley 7 A. During the process, the lower surface, that is, the side of the object to be cut that comes into contact with the uncut portion 1B is supplied with water to be washed and replenished. Therefore, not only the most dirty surface of the wire saw is washed, but also when the wire saw 19 is detached from the water-washing pulley 7A, fresh water adheres to the lower surface of the wire saw mainly as the concave portion between the diamond beads as the adhering water 10A and is cut. Since it is carried to the surface, the cleaning and cooling effects are significantly improved compared to the conventional case.

Further consideration of this action is as shown in FIG.

That is, conventionally, as shown in FIG. 9, the water 10 supplied from the hose 11 is applied to the wire saw 19 at the position shown in FIG. Therefore, even when the hose 11 is placed at the proper position, the water 10 is splashed from the upper side as shown in FIG. 9, so most of the water is reflected on the upper surface of the wire saw and escapes as a splash. Moreover, since water does not splash directly under the most necessary wire saw, the cooling and washing effect was insufficient.

However, in the present invention, as shown in FIG. 5, the wire saw 19 engaged with the washing pulley is always supplied with water from the inner diameter direction (lower side), and therefore, the side which comes into contact with the uncut portion 1B of the object to be cut is important. It is cooled, washed, and supplied with water (supplemented water).

This effect is the same as in the large-sized drive washing pulley 5A. Therefore, no slippage occurs between the pulley and the wire saw as in the conventional case.

[0031]

[Effect of device]

 By carrying out the present invention, all of the above objects can be achieved.

That is, there is provided a water washing pulley which has high work safety, requires a small amount of water, and can achieve a high operating rate. The flushing pulley of the present invention can effectively wash the chips attached to the wire saw and supply water to the working surface of the wire saw. By providing the wire saw loop at least at one position, a guide water washing pulley capable of automatically following the movement of the wire saw loop is provided. In addition, it is possible to provide a drive washing pulley with high power transmission efficiency for the wire saw.

[Brief description of drawings]

FIG. 1 is a plan view of a water washing pulley for a guide according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a cross-sectional view of a drive washing pulley according to another embodiment of the present invention.

FIG. 4 is a perspective view showing the action of the guide washing pulley according to the embodiment.

FIG. 5 is a partial cross-sectional view of the essential parts of the embodiment as seen from the tangential direction of the pulley.

FIG. 6 is an overall side view showing a usage example A of the embodiment of the present invention.

FIG. 7 is an overall side view showing a usage example B of the embodiment of the present invention.

FIG. 8 is an overall side view showing a usage example C of the embodiment of the present invention.

FIG. 9 is a sectional view of a main part showing a conventional example.

FIG. 10 is an overall side view showing a conventional example.

[Explanation of symbols]

 1 Cut Object 1B Uncut Part 5 Drive Pulley 5A Drive Washing Pulley 6 Guide Pulley 7 Entry Guide Pulley 7A Entry Guide Washing Pulley 8 Exit Guide Pulley 8A Exit Guide Washing Pulley 10 Cooling Water 11 Hose (Nozzle) ) 19 wire saw 20 wire 21 wire coating 22 diamond beads 23 water supply valve 24 water supply nipple 25 frame for water supply tank 27 fixed shaft 28 fixed shaft mounting screw 30 shaft inner water channel 31 shaft inner water channel 32 water seal 32A water seal 33 color 34 bearing 35 water supply Coupling 36 Drain hole 40 Washing pulley for guide 40A Washing pulley for driving 41 Water passage in pulley 42 Tire with concave section (rubber ring) 44 External power (hydraulic motor) 46 Gear 47 Gear 48 Casing (gear box) 50 Dust 53 Drive shaft 54 Rotation shaft 55 Bolt

Claims (2)

[Scope of utility model registration request] 1. A fixed shaft 27 having in-shaft water channels 30, 31.
And a wire saw 1 that has a pulley inner water passage 41 and engages water supplied from the shaft inner water passages 30 and 31 with the concave section tire 42.
And a pair of bearings 34, 34 for pivotally attaching the pulley 40 to the fixed shaft 27 by distributing it to the wire saw 19 and washing and / or supplying water to the wire saw 19.
And at least a pair of water seals 32, 32 provided between the bearings 34, 34 and a pair of dust seals 50, 50 provided outside the bearings 34, 34. Washing pulley for guide. 2. An axial water channel 30, 31 is provided, and at least 1.
A water supply coupling 35 supported on the casing via a pair of bearings 34, 34 and stationary via a water seal 32.
A rotary shaft 5 that is pivotally attached to and is driven by external power.
4 and a pulley 40A which has a pulley inner water passage 41 to wash and / or supply water to the wire saw 19 by distributing the water supplied from the shaft inner water passages 30 and 31 to the wire saw 19 which engages with the concave section tire 42. And a fixing mechanism for fixing the pulley 40A to the rotary shaft 54.