JPH07214400A - Clearance regulating device without shim-plate for clutch of press machine and that for brake - Google Patents

Abstract

PURPOSE:To easily and speedily regulate the clearance in a friction clutch or brake of disk type of a press machine without using a shim plate and to easily execute the maintenance of the periodic inspection or the like. CONSTITUTION:Plural female screw holes 11 are formed in the circumferential direction on a position nearby the outer circumference of a fixed member 3 being a cylinder or a piston fixed on the side end part of a housing, an adjusting bolt 12 is screwed in each female screw hole 11, and each adjusting bolt 12 is turned by a prescribed angle after its depth end part 14 or head part is brought into contact with a reference surface, moved back and forth by the pitch corresponding to the turning angle and positioning is executed. In such a way, the backward moving amount of a pressing plate 7 can be regulated with the adjusting bolt 12 so that the interval between the friction plate 6 and the pressing plate 7 is made a clearance S suitable for the clutch or the brake.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gap adjusting device for a press machine clutch without a shim plate and a gap adjusting device for a brake without a shim plate. The gap can be easily and quickly adjusted without the shim plate. It was done like this.

[0002]

2. Description of the Related Art A clutch and a brake that assists the clutch are the most important parts of a press machine. Their performance greatly affects the production capacity of a press, and 80% of press accidents are said to be related to the clutch. (Refer to page 271 of "Press Handbook" published by Maruzen Co., Ltd.). Therefore, they must be adjusted so that they can exert their full functions. There are various types of clutches and brakes, and high-speed medium and large-sized machines or small-sized machines often use a single-plate or multi-plate friction type that is operated by pneumatic cylinders and pistons.

By the way, in clutches and brakes, if the pressure plates and friction plates (including the lining) on the driving side and the passive side are worn and thinned after long-term use, the gap between them becomes large. If the gap between the pressing plate and the friction plate is large, the amount of movement of the piston (or cylinder) as a movable member must be large in order to reliably operate the clutch and brake. However, when the amount of movement of the piston (or cylinder) increases, the collision force increases with the cylinder (or piston) as the fixing member or with the pressing plate, and a large collision noise is produced. The friction plate may be damaged and fragments may enter the gap.

Therefore, conventionally, there has been the following as a gap adjusting mechanism when the gap between the pressing plate and the friction plate becomes large. That is, between the side end surface of the clutch housing and the outer peripheral portion of the clutch cylinder (or piston) as the fixing member, or between the side end surface of the brake housing and the outer peripheral portion of the brake cylinder (or piston) as the fixing member. Between and, each fixing screw provided with a large number in the circumferential direction to fix each of them is provided with a horseshoe-shaped shim plate for gap adjustment, which is common (for example, "Press machine you want to know", published by Japan Machinist, page 2-22 (a) on page 62, and Figure 2-24 on page 66].

This is because when the gap between the pressing plate and the friction plate becomes large, the shim plate for adjusting the gaps described above is replaced with a shim plate having an appropriate thickness smaller than the shim plate so that the gap becomes a minimum necessary gap. The amount of movement of the piston and the pressing plate that moves integrally with the shim plate is regulated by replacing the shim plate to prevent the occurrence of the above troubles.

However, although the number of the fixing screws varies depending on the size of the press machine and the like, the number of the fixing screws is as small as ten or more, and as large as 50 or more (see FIG. 16). To adjust the gap between the pressure plate and friction plate of the clutch or brake, loosen all of the fixing screws, pull out each gap adjustment shim plate that has been inserted up to that point, and put it there than before. It was necessary to insert another thin shim plate for gap adjustment and tighten all fixing screws again. Therefore, this clearance adjustment work requires a great deal of time and labor, and regular inspection and other maintenance are difficult.

The present invention is intended to solve the problems of the conventional clearance adjusting mechanism for clutches and brakes of a press machine. That is, the object of the present invention is to make it easier to adjust the gap when the gap between the pressing plate and the friction plate is increased by the clutch or brake of the press machine without using a shim plate, unlike the conventional one, though it has a relatively simple structure. (EN) Provided are a shim plateless clearance adjusting device for a clutch of a press machine and a shim plateless clearance adjusting device for a brake, which can be quickly performed and can easily perform periodic inspection and other maintenance.

[0008]

[Means for Solving the Problems]

A First of the clearance adjusting device in the clutch of the press machine according to the present invention is to fix the side of the clutch housing 2 to the outer peripheral portion of the fixing member 3 which is a cylinder or a piston with a plurality of fixing screws 4 in the circumferential direction. Then, the friction plate 6 on the crankshaft 5 side and the pressing plate 7 on the clutch housing 2 side so as to be in pressure contact with the friction plate 6 are internally provided, and

A spring 8 for retracting the pressing plate 7 toward the fixed member 3 for separating the plates 6, 7 and a movable member 9 which is a piston or a cylinder for advancing the pressing plate 7 inward when air is supplied. In the provided clutch of the press machine,

One friction plate 6 and one pressing plate 7 that can be pressed against the friction plate 6 are provided, and the pressing plate 7 is formed so as to be movable integrally with the movable member 8.

A plurality of female screw holes 11 are formed in the circumferential direction at a position near the outer peripheral portion of the fixing member 3, and adjusting bolts 12 are screwed into the female screw holes 11, and a rear end portion 14 thereof is pressed. The lock nut 1 is provided outside the fixing member 3 so that it can be brought into contact with the plate 7.
By screwing 3

The retreat movement amount of the pressing plate 7 can be regulated to a pitch corresponding to the turning angle of each of the adjusting bolts 12.

B The second shim plate-less clearance adjusting device for a clutch of a press machine according to the present invention is a fixing member 3 which is a cylinder or a piston at a side end portion of a clutch housing 2 with a plurality of fixing screws 4 in a circumferential direction. Is fixed on the outer peripheral portion side, and a friction plate 6 on the crankshaft 5 side and a pressing plate 7 on the clutch housing 2 side so that the friction plate 6 can be pressed into contact with the friction plate 6 are internally provided.

A spring 8 for retracting the pressing plate 7 toward the fixed member 3 for separating the plates 6, 7 and a movable member 9 which is a piston or a cylinder for advancing the pressing plate 7 inward when air is supplied. In the provided clutch of the press machine,

Two or more friction plates 6 are provided, such as the back friction plate 6a and the fixing member 3 side friction plate 6b, and the pressure plates 7 such as the back side pressing plate 7a and the fixing member 3 side pressing plate 7b. , Springs 8a and 8b for independently retracting the pressing plates 7a and 7b to the fixing member 3 side are provided,

A plurality of female screw holes 11a are formed in the circumferential direction at positions near the outer peripheral portion of the fixing member 3, and a plurality of through holes corresponding to the female screw holes 11a are formed in the pressing plate 7b on the fixing member 3 side. A hole 15 is formed, an adjusting bolt 12a is screwed into each female screw hole 11a, and the back end 14a is passed through each through hole 15.
Can contact the pressing plate 7a on the back side, and the lock nut 13 is screwed on the outside of the cylinder 3,

At a position near the outer peripheral portion of the fixing member 3,
A plurality of female screw holes 11b are formed in the circumferential direction, adjustment bolts 12b are screwed into the respective female screw holes 11b, and the rear end portion 14b thereof can abut the pressing plate 7b on the fixing member 3 side.
By screwing the lock nut 13 on the outside of the fixing member 3,

The amount of backward movement of each pressing plate 7a, 7b can be regulated to a pitch corresponding to the rotation angle of each adjusting bolt 12a, 12b.

C. The third shim plateless clearance adjusting device for a clutch of a press machine according to the present invention is a fixing member 3 which is a cylinder or a piston at a side end portion of a clutch housing 2 with a plurality of fixing screws 4 in a circumferential direction. The inner periphery of the friction plate 6 on the crankshaft 5 side and the pressing plate 7 on the clutch housing 2 side that can be pressed against the friction plate 6 are fixed.

A press machine provided with a spring 8 for retracting the pressing plate 7 toward the fixing member 3 for separating the plates 6, 7 and a movable member 9 for advancing the pressing plate 7 inward when air is supplied. In the clutch of

Female screw holes 11 are formed on the fixing member 3 at points or axisymmetrical positions with respect to the respective fixing screws 4, and from the outside of the fixing member 3 into the female screw holes 11, the rear end portion 14 has a clutch housing. Adjusting bolt 12 so that it can contact the side end of 2
By screwing

The amount of backward movement of the pressing plate 7 can be regulated to a pitch corresponding to the turning angle of each adjusting bolt 12.

D A first shim plate-less clearance adjusting device for a brake of a press machine according to the present invention is a fixing member 17 which is a cylinder or a piston at a side end portion of a brake housing 16 and is circumferentially provided with a plurality of fixing screws 18. The outer peripheral portion of the brake plate 16 is fixed, and the friction plate 19 on the crankshaft 5 side and the pressing plate 2 on the brake housing 16 side that can be pressed against the friction plate 19.
With 0 and interior,

The pressing plate 2 for press-contacting the two plates 19 and 20
In a brake of a press machine, which is provided with a spring 21 for moving 0 backward and a movable member 22 for retracting the pressing plate 20 to the fixed member 17 side during air supply,

A plurality of female screw holes 24 are formed in the circumferential direction at positions near the outer peripheral portion of the movable member 22, and a fixed member 17 has a through hole 25 with a step 26 corresponding to each female screw hole 24. Forming a plurality of

A step 26 is formed in each of the through holes 25 and the head 2
7 is inserted through the T-shape adjusting bolt 28 which can be locked, and is screwed into each female screw hole 24 of the movable member 22,
By screwing the lock nut 29 on the outside of the movable member 22,

The amount of backward movement of the pressing plate 20 can be regulated to a pitch corresponding to the turning angle of each adjusting bolt 28.

E A second embodiment of the shim plate-less clearance adjusting device for a brake of a press machine according to the present invention is that a fixing member 17 which is a cylinder or a piston is circumferentially provided at a side end portion of a brake housing 16 with a plurality of fixing screws 18. The outer peripheral portion of the brake plate 16 is fixed, and the friction plate 19 on the crankshaft 5 side and the pressing plate 2 on the brake housing 16 side that can be pressed against the friction plate 19.
With 0 and interior,

The pressure plate 2 for press-contacting both plates 19 and 20
In a brake of a press machine, which is provided with a spring 21 for moving 0 backward and a movable member 22 for retracting the pressing plate 20 to the fixed member 17 side during air supply,

Female screw holes 24 are formed at points or axisymmetrical positions around the respective fixing screws 18 of the fixing member 17,

From the outside of the fixing member 17, each female screw hole 2
4, by screwing the adjusting bolt 28 so that the rear end portion 30 can come into contact with the side end portion of the brake housing 16,

The amount of backward movement of the pressing plate 20 can be regulated to a pitch corresponding to the turning angle of each adjusting bolt 28.

In each of the above constructions, the fixed members 3 and 17 are members fixed to the housings 2 and 16, and the movable members 9 and 22 are members movable relative to them.
Although the terms fixed member and movable member are used here, the clutch cylinder and the brake cylinder are normally on the fixed side, and the piston is on the movable side (see FIGS. 1, 4, 4, and 14). In some cases, the piston is on the fixed side and the cylinder is on the movable side (see FIG. 11, for example).

The springs 8, 8a, 8b, 21 may be provided inside the clutch or the brake or may be provided outside them. Further, the pressing plate 7 of the single plate type and the pressing plates 7b and 20 of the fixed member side of the multiple plate type may be integrally formed with the movable members 9 and 22 or may be separate members.

An index is preferably formed on each of the adjusting bolts 12 and 28 so that the turning angle thereof can be easily understood. The friction plates 6 and 19 are meant to include a lining. In the figure, reference numeral 1 denotes a drive rotating portion, which is a flywheel when power transmission to a clutch or a brake is belt drive, and a large gear when gear drive. Also 13, 29
Is a lock nut, 31 is a pinion, 32 is an air supply port, 33
Is a connecting pin S, S1, S2 is a gap, and T is a gap.

[0036]

According to the shim plateless clearance adjusting device and the shimless clearance adjusting device in the clutch of the press machine according to the present invention, in the clutch and the brake, the driving side and the passive side pressing plates and friction plates are used for a long period of time. If it becomes worn and thinned and the gap becomes large, adjust it as follows.

(A) The first shim plate-less clearance adjusting device for the clutch of the press machine according to the present invention (see FIG. 1) has the friction plate 6 and the pressing plate 7 of a single plate type. Prior to the adjustment, air is supplied between the fixed member 3 and the movable member 9, and the pressing plate 7 that moves integrally with the movable member 9 is pressed against the friction plate 7 (see FIG. 2). Next, while keeping the fixing screws 4 for fixing the side end portion of the clutch housing 2 and the outer peripheral portion of the fixing member 3 as they are, loosen the lock nut 13 and turn the adjustment bolts 12 in the direction of once tightening them. The rear end portion 14 of each adjusting bolt 12 is brought into contact with the pressing plate 7 serving as a reference surface (see the adjusting bolt 12 shown by the two-dot chain line in FIG. 2).

Then, each adjusting bolt 12 is slightly rotated in the loosening direction to be retracted. The rotation of the adjusting bolt 12 at this time causes the pressing plate 7 to move backward in accordance with the pitch of the adjusting bolt 12 so that the gap S between the friction plate 6 and the pressing plate 7 and the like becomes an appropriate gap S as a friction clutch. Is a rotation angle for. For example, an appropriate gap S required on each side of the friction plate 6
Assuming that 1 is 0.5 mm and the pitch of the adjusting bolts 12 is 3 mm, the required clearance for both sides of the friction plate 6 is 1 mm.
Therefore, the rotation angle for rotating the adjustment bolt 12 is 120 degrees, which is one third rotation.

As a result, the adjusting bolt 12 is retracted (see the adjusting bolt 12 shown by the solid line in FIG. 2) so that the space between the rear end portion 14 and the pressing plate 7 is increased during operation of the press machine. A gap T is formed on each side surface of the friction plate 6 to generate an appropriate gap S (see FIG. 2). Fixing nut 13 in this state
Tighten and fix each adjustment bolt 12.

As a result, when the pressing plate 7 advanced to the friction plate 6 side by the movement of the movable member 9 is moved backward by the spring 8 to the movable member 3 side during the operation of the press machine, the amount of the backward movement is It is regulated by the rear end portion 14 of each adjustment bolt 12 (see FIG. 3), and the gap between the pressing plate 7 and the friction plate 6 which is increased due to wear is eliminated and normal operation can be performed. (See FIG. 1).

(B) The second type (see FIG. 4) of the shim plate-less clearance adjusting device in the clutch of the press machine according to the present invention is the above-mentioned single plate type because the friction plate 6 and the pressing plate 7 are multi-plate type. The operating state is slightly different from the one.

That is, prior to the adjustment, air is supplied between the fixed member 3 and the movable member 9 so that the pressing plate 7 integral with the movable member 9 is pressed against the friction plate 6 in the same manner as in the above-mentioned a). is there.

Then, the fixing screws 4 are left as they are, and the adjusting bolts 12a and 12b in which the lock nut 13 is loosened are provided.
Is once rotated in the direction of tightening and moved forward so that the rear end portions 14a, 14b of the adjusting bolts 12a, 12b come into contact with the pressing plates 7a, 7b serving as reference surfaces (Fig.
(Refer to the adjusting bolt indicated by the two-dot chain line in FIG. 6). After that,
The adjustment bolts 12a and 12b are slightly rotated in the loosening direction to be retracted.

At this time, the adjustment bolt 12a on the back side is rotated so that a clearance S1 suitable for a clutch is formed between the friction plate 6a on the back side and the pressing plate 7a (see FIG. 7). This is a rotation angle for retracting the pressing plate 7a toward the fixing member 3 side according to the pitch of the adjusting bolts 12a. In this case,
For example, if the appropriate clearance S1 required on each side of the friction plate 6a is 0.5 mm and the pitch of the adjusting bolts 12 is 3.0 mm, the required clearance on both sides of the friction plate 6a is 1.
The rotation angle for rotating the adjusting bolt 12a is 120 degrees, which is one third rotation.

Then, the adjustment bolt 12a on the back side is retracted (see the adjustment bolt 12 shown by the solid line in FIG. 5),
Between the inner end portion 14 and the inner pressure plate 7a, an appropriate gap S that requires each side surface of the friction plate 6a during operation of the press machine.
A gap T1 is generated to generate 1 (see FIG. 5 above). In this state, the fixing nut 13 is tightened to fix the adjusting bolts 12a.

On the other hand, the adjusting bolt 12b on the fixing member 3 side
The rotation of the pressing plate 7b is adjusted so that the gap S2 between the friction plate 6b and the pressing plate 7b on the fixed member 3 side is appropriate as a clutch (see FIG. 7). Accordingly, the rotation angle for retreating to the fixed member 3 side is the sum of the rotation angle for the back side friction plate 6a and the pressing plate 7a to form an appropriate gap S1. For example, an appropriate gap S2 required for each side surface of the friction plate 6b on the fixed member 3 side is 0.5 mm, and a gap required for both side surfaces is 1.0 mm.
1.0 for the amount of clearance required on both sides of the back friction plate 6a
In order to obtain 2.0 mm which is the sum of mm, the adjustment bolts 12b on the fixing member 3 side having a pitch of 3.0 mm are
The rotation angle is 240 degrees, which is two-thirds rotation.

Now, the adjusting bolt 1 on the fixing member 3 side
2b is retracted (the adjustment bolt 12 shown by the solid line in FIG.
), The rear end portion 14b and the pressing plate 7b on the side of the fixed member 3
Between the side and the side of the friction plate 6a on the fixed member 3 side and a side of the side of the friction plate 6b on the fixed member 3 side while the press machine is operating. A gap T2 is created to allow it (see FIG. 6). In this state, the lock nut 13 is tightened to fix the adjusting bolts 12b.

As a result, during operation of the press machine, the pressing plates 7a and 7b advanced to the friction plates 6a and 6b side by the movement of the movable member 9 are pushed by the springs 8a and 8b, and are fixed to the fixing member 3 side. When moving backward, the amount of movement to be moved back is regulated by the rear end portions 14a, 14b of the adjusting bolts 12a, 12b adjusted as described above, and the friction plates 6a increased by the wear. , 6b and the pressure plates 7a, 7b are eliminated, and normal operation can be performed (FIG. 4).
reference).

C) The operation of the third shim plateless clearance adjusting device (see FIG. 8) in the clutch of the press machine according to the present invention is slightly different from that of a) and b) above,
Before the adjustment, air is supplied between the fixed member 3 and the movable member 9, and the pressing plate 7 that moves integrally with the movable member 9 is pressed against the friction plate 6 in the same manner as in the above a) and b). is there.

In this state, each fixing screw 4 is left as it is, and each adjusting bolt 12 provided at a point or an axisymmetric position around the fixing screw 4 is rotated once in the tightening direction to move forward.
The rear end portion 14 is brought into contact with the side end portion of the clutch housing 2 (see the adjustment bolt 12 on the upper side in FIG. 9).

Next, each adjusting bolt 12 is rotated in the loosening direction to be retracted. The rotation of the adjusting bolt 12 is appropriate between the friction plate 6 and the pressing plate 7 as a clutch. This is a rotation angle for retracting the pressing plate 7 according to the pitch of the adjusting bolts 12 so that the gap S is formed (see FIG. 8). For example, the appropriate clearance S required on each side surface of the friction plate 6 is 0.5 mm, and the pitch of the adjusting bolts 12 is 3.0 m.
If the distance is m, the necessary clearance for both side surfaces of the friction plate 6 is 1.0 mm, and therefore, the rotation angle for rotating the adjusting bolt 12 is one third rotation, 120 degrees.

Now, each adjusting bolt 12 is retracted,
A clearance T is provided between the friction plate 6 and the pressing plate 7 or the like between the rear end 14 and the side end of the clutch housing 2 which has been in contact therewith. (See the adjusting bolt 12 on the lower side in FIG. 9). After that, each fixing screw 4 is turned in the tightening direction, and is tightened until the rear end portion 14 of each adjusting bolt 12 comes into contact with the side end portion of the clutch housing 2, and the fixing member 3 is advanced to the housing 2 side by the adjustment amount. It should be set to (see FIG. 10).

As a result, when the pressing plate 7 moved forward to the friction plate 6 side by the movable member 9 is moved backward to the fixed member 3 side by the spring 8 during the operation of the press machine, it is moved to the forward movement position by the above adjustment. The coming fixing member 3 locks on the inner surface. Therefore, the amount of movement of the pressing plate 7 in the backward direction is determined by the adjustment bolt 12
Is regulated by the amount adjusted by, and the gap between the pressing plate 7 and the friction plate 6, which is increased due to wear, is eliminated, and normal operation can be performed (see FIG. 8).

D) In the first one (see FIG. 11) of the shim plateless clearance adjusting device for the brake of the press machine according to the present invention, the fixed member 17 and the movable member 22 are evacuated before the adjustment, and the fixed member is discharged. The pressing plate 20 on the 17 side is pressed against the friction plate 19 by the force of the spring 21.

Next, with the fixing screws 18 still in place, the adjusting bolts 28 are once turned in the loosening direction and retracted so that their heads 27 come into contact with the stepped portions 26 in the through holes 25 of the fixing member 17. (See the adjusting bolt 28 shown by the chain double-dashed line in FIG. 12).

After that, the adjusting bolts 28 are rotated in the tightening direction and moved inward (see the adjusting bolts shown by the solid line in FIG. 12).
The rotation of the pressing plate 20 on the side of the fixing member 17 is adjusted according to the pitch of the adjusting bolt 28 so that an appropriate gap S is formed between the friction plate 19 and the pressing plate 20 as a brake (see FIG. 13). Is a rotation angle for retracting. For example, the appropriate gap S required on each side surface of the two friction plates 19 is 0.5 mm.
Assuming that the pitch of the adjusting bolts 28 is 3.0 mm, as shown in the figure, if there are two friction plates 19, the clearance required on both side surfaces is 2.0 mm. Therefore, the adjusting bolts 28 are rotated for that purpose. The rotation angle is 240 degrees, which is two-thirds of the rotation.

Now, the adjusting bolts 28 move forward,
Between the head portion 27 and the stepped portion 26 in the through hole 25, there is a gap T (see FIG. 12) enough to generate an appropriate gap S (see FIG. 13) required on each side surface of the friction plate 19. . In this state, the fixing nut 29 may be tightened to fix the adjusting bolts 28.

As a result, when the pressing plate 20 is retracted via the connecting pin 33 due to the retraction of the movable member 22 during the operation of the press machine, the amount of movement of the movable member 22 is determined by the head of the adjusting bolt 28. A gap T until the portion 27 abuts against the step portion 26 in the through hole 25 and is regulated, which is the pressure plate 20.
Is also the amount of movement that can be moved backward (see FIG. 13). Therefore, the gap between the friction plate 19 and the pressing plate 20 which is increased due to the wear is eliminated, and the normal brake operation can be performed (see FIG. 11).

(E) In the second type of the shim plate-free clearance adjusting device for the brake of the press machine according to the present invention (see FIG. 14), the fixed member 17 and the movable member 22 are evacuated before the adjustment, and the fixed member is discharged. The pressing plate 20 on the 17 side is pressed against the friction plate 19 by the force of the spring 21, as in the case of the above-mentioned item D).

After that, each fixing screw 18 is left as it is,
Each adjusting bolt 28 provided at a point or a line symmetrical position around the fixing screw 18 is once turned in the tightening direction so that the rear end 30 thereof comes into contact with the side end of the brake housing 16 (FIG. 15). (See the upper adjusting bolt 28).

Next, the adjusting bolts 28 are rotated in a loosening direction, and the adjusting bolts 28 are rotated so that a gap S between the friction plate and the pressing plate is suitable as a brake. This is a rotation angle for retracting the pressing plate 20 on the fixing member 17 side in accordance with the pitch of the adjusting bolt 28.

For example, the appropriate clearance required on each side of the friction plate is 0.5 mm, and the pitch of the adjusting bolt 28 is 3.0 m.
If it is m, the required clearance for both sides of the friction plate is 1.
The rotation angle for rotating the adjusting bolt 28 is 120 mm, which is one third rotation.

Now, each adjusting bolt 28 is retracted,
Between the rear end 30 and the side end of the brake housing 16 that has been in contact so far, a gap T is provided so that an appropriate gap S is provided between the friction plate 19 and the pressing plate 20. (See FIG. 15). After that, each fixing screw 18 is turned in the tightening direction and tightened until the rear end 30 of each adjusting bolt 28 comes into contact with the side end of the brake housing 16, and the fixing member 17 is advanced toward the housing 16 side by the adjustment amount. Just keep it in a state.

As a result, during operation of the press machine, the pressing plate 20 advanced to the friction plate side by the spring 8 retracts to the fixed member 17 side via the connecting pin 33 as the movable member 22 retracts due to air supply. In this case, the fixing member 1 as in (c) above
7 will be locked on the inner surface. Therefore, the pressing plate 20
The amount of movement for retreating is restricted by the amount adjusted by the adjusting bolt 28, and the gap between the wear plate and the pressing plate, which has increased due to wear, is eliminated, and normal brake operation can be performed. (See FIG. 14).

[0065]

The representative examples of the shim plateless clearance adjusting device in the clutch of the press machine and the shim plateless clearance adjusting device in the brake according to the present invention are as described in the claims, and in each case thereof. I will describe. In addition,
The diagonal parallel lines (hatching) showing the cut surface in the figure are omitted.

A) First, FIG. 1 to FIG. 3 relate to the one described in claim 1, and the clutch of this press machine is a disc type friction type, and the friction plate 6 is a single plate type. There is.

At a side end portion of a clutch housing 2 which is integral with a flywheel 1 as a driving / rotating portion, an outer peripheral portion of a clutch cylinder 3 as a fixing member is fixed in the circumferential direction by a plurality of fixing screws 4. However, the fixing screw 4 here is screwed to the end portion on the housing 2 side through the through hole of the cylinder 3. A gap adjusting shim plate is not provided between the fixed housing 2 side end portion and the cylinder 3 side portion.

Inside the housing 2 and the cylinder 3, similar to a general type of this kind, a friction plate 6 on the crankshaft 5 side and a pressing plate on the clutch housing 2 side so as to be able to press the friction plate 6. 7 and the interior, and both plates 6,
A spring 8 for retracting the pressing plate 7 toward the cylinder 3 side for detaching 7 and a piston 9 as a movable member for advancing the pressing plate 7 to the inner side, that is, the friction plate 6 side when air is supplied to the cylinder 3 are provided. is there.

One pressing plate 7 that can be pressed against the friction plate 6 is also provided, and it can move integrally with the piston 8. Here, both 7 and 8 are formed separately and fixed. is there.

Then, a plurality of female screw holes 11 are formed at equal intervals in the circumferential direction at positions near the outer peripheral portion of the cylinder 3,
A lock nut 13 is provided outside the cylinder 3 in each of the female screw holes 11.
The adjustment bolt 13 which can be screwed is screwed so that the rear end portion 14 thereof can come into contact with the pressing plate 7 so that the clearance can be adjusted.

B) FIGS. 4 to 7 relate to the second aspect of the present invention. The clutch of this press machine is a disc type friction type and the friction plate 6 is a multi-plate type.

Similar to the above a), at the side end of the clutch housing 2 which is integral with the flywheel 1 as the driving / rotating portion, the outer peripheral portion of the cylinder 3 as the fixing member is provided with a plurality of fixing screws in the circumferential direction. 4 is fixed, and a shim plate for adjusting the clearance is not provided between the fixed housing 2 side end and the fixed cylinder 2 side.

Inside, the friction plate 6 on the crankshaft 5 side is provided.
And two pressing plates 7 on the side of the clutch housing 2 capable of pressing the friction plates 6 are alternately provided. The friction plates 6 are a friction plate 6a on the back side, a friction plate 6b on the cylinder 3 side, and a pressing plate 7. Also comprises a pressing plate 7a on the back side and a pressing plate 7b on the cylinder 3 side. Further, a piston 9 is provided as a movable member for pressing the pressing plate 7b on the cylinder 3 side inward, that is, the friction plate 6 side, when air is supplied to the cylinder 3.

The spring 8 for retracting the pressing plate 7 toward the cylinder 3 side is also provided on the cylinder 3 side through the spring 8a for pressing the rear pressing plate 7a and the through hole formed in the rear pressing plate 7a. A spring 8b for retracting the pressing plate 7b to the cylinder 3 side is provided separately. The two springs 8a and 8b are alternately provided on a concentric circle.

A plurality of female screw holes 11a are formed at equal intervals in the circumferential direction at a position near the outer peripheral portion of the cylinder 3 and outside the seal portion 10 with the piston 9, and the cylinder 3
A plurality of through holes 15 are formed at equal intervals in the circumferential direction in the side pressing plate 7b corresponding to the female screw holes 11a. And
The adjusting bolt 12a is screwed into each of the female screw holes 11a so that the rear end portion 14a of each of the female screw holes 11a can contact the pressing plate 7a on the rear side through each of the through holes 15, and the lock nut 13 is screwed on the outside of the cylinder 3. I am allowed.

Further, female screw holes 11b are alternately formed at equal intervals on the concentric circles with the female screw holes 11a of the adjusting bolts 12a of the pressing plate 7a on the back side, and the adjusting screws are formed in the respective female screw holes 11b. The bolt 12b is screwed so that the rear end portion 14b of the bolt 12b can come into contact with the pressing plate 7b on the cylinder 3 side, and the lock nut 13 is screwed on the outside of the cylinder 3 to adjust the clearance.

C) FIGS. 8 to 10 relate to the above-mentioned claim 3, wherein the clutch of this press machine is a disc type friction type and single plate type, but a little from the above a). different.

At the side end of the clutch housing 2 which is integral with the flywheel 1 as the driving / rotating part, the outer peripheral portion of the clutch cylinder 3 as the fixing member is fixed in the circumferential direction by a plurality of fixing screws 4. However, as for the fixing screw 4 here, an embedded bolt is provided in the housing 2 and a lock nut is screwed to the outside of the cylinder 3. A gap adjusting shim plate is not provided between the fixed housing 2 side end portion and the cylinder 3 side portion.

Inside the housing 2 and the cylinder 3, a friction plate 6 on the crankshaft 5 side and a pressing plate 7 on the clutch housing 2 side capable of pressing the friction plate 6 are provided. A spring 8 for retracting the pressing plate 7 toward the cylinder 3 side for detaching 7 and a piston 9 as a movable member for advancing the pressing plate 7 to the inner side, that is, the friction plate 6 side when air is supplied to the cylinder 3 are provided. is there.

Then, two or more female screw holes 11 are formed in line symmetric positions with respect to each of the plurality of fixing screws 4, and the adjusting bolts are inserted into the female screw holes 11 from the cylinder 3 side. 12 are screwed into each other, and the rear end portion 14 thereof can be brought into contact with the side end portion of the housing 2 so that the clearance can be adjusted (see FIGS. 9 and 10).

D) FIG. 11 to FIG. 13 relate to the one described in claim 4, and the brake of this press machine is a general disc type friction type and multiple plate type,
Unlike the brakes shown in the above a), b), c) and the conventional example, the piston is the fixed member 17 and the cylinder is the movable member 22.

A plurality of fixing screws 18 are circumferentially fixed to a side end portion of the brake housing 16 so as to fix the piston 17 as a fixing member toward the outer peripheral portion, and a friction plate 19 on the crankshaft 5 side and the friction plates. The press plate 20 on the housing 16 side is internally mounted so as to be capable of press-contacting with the plate 19, and both plates 19 and 20 are provided.
Spring 21 for advancing the pressing plate 20 inward due to the pressure contact with the cylinder 2 and the cylinder 2 as a movable member for retracting the pressing plate 20 toward the piston 17 side against the spring force during air supply.
2 is provided. End of housing 16 and piston 17
A shim plate for adjusting the clearance is also not provided between the side portions.

A plurality of female screw holes 24 are formed at equal intervals in the circumferential direction at positions near the outer peripheral portion of the cylinder 22, and the step portion 2 is formed in the piston 17 in correspondence with each female screw hole 24.
A plurality of through holes 25 with 6 are formed.

Then, T-shaped adjusting bolts 28 whose heads 27 are locked at the step portions 26 are inserted into the through holes 25 of the piston 17, and the female screw holes 24 of the cylinder 22 are inserted. The lock nut 29 is screwed on the protruding portion to the outside of the cylinder 22 so that the clearance can be adjusted.

In this case, the piston 17 and the cylinder 22 move only the pressing plate 20 on the cylinder 22 side, although the friction plate 19 is a multi-plate. This differs from the case of the clutch in that the braking force is the piston 1
Since it depends on the force of the spring 21 regardless of the cylinder 7 and the cylinder 22, it is sufficient for the cylinder 22 and the piston 17 to exert a force for releasing the brake.

E) FIG. 14 to FIG. 15 relate to the one described in claim 5, and the brake of this press machine is a general disc type friction type and multi-plate type.

A plurality of fixing screws 18 are circumferentially fixed to the side end of the brake housing 16 so as to fix the outer peripheral portion of the cylinder 17 as a fixing member to the friction plate 19 on the crankshaft 5 side and the friction plate. The press plate 20 on the housing 16 side is internally mounted so as to be capable of press-contacting with the plate 19, and both plates 19 and 20 are provided.
Spring 21 for advancing the pressing plate 20 inward due to pressure contact with the piston 2 and piston 2 as a movable member for retracting the pressing plate 20 toward the cylinder 17 side against the spring force during air supply.
2 is provided. End of housing 16 and piston 17
A shim plate for adjusting the clearance is also not provided between the side portions.

The fixing screw 18 here is the housing 16
An embedded bolt is provided on the cylinder 17 and a lock nut is screwed on the outside of the cylinder 17. Two or more female screw holes 24 are formed at line symmetric positions with respect to each of the fixing screws 18 as described above. The adjusting bolts 28 are respectively screwed into the female screw holes 24 from the cylinder 17 side, and the rear end portions 30 thereof can come into contact with the side end portions of the housing 16 so that the clearance can be adjusted (Fig. 15 and (See FIG. 10).

In any of the above cases, the shim plate for adjusting the clearance is not used, but the adjustment plate is rotated by the pitch corresponding to the rotation angle of each adjustment bolt, whereby the pressing plate is rotated. The amount of backward movement of is regulated. In each drawing, a key is used to fix the crankshaft 5 and the pinion 31 in the illustrated example, but the invention is not limited to this, and a keyless fastening ring (Sparn ring) may be used. Reference numeral 34 indicates a bearing.

[0090]

As is apparent from the above, the shim plateless clearance adjusting device in the clutch of the press machine according to the present invention,
Also, the shim plate-less clearance adjusting device in the brake can easily and quickly adjust the clearance.

That is, when the pressing plate and the friction plate (including the lining) are worn and thinned, the gap between them becomes large, the moving amount of the piston / pressing plate becomes large, and the collision force between them becomes large. , The collision sound becomes loud,
There was a problem that the friction plate was damaged and debris got into the gap.

Therefore, conventionally, a horseshoe-shaped shim plate for adjusting a clearance is provided on each of a plurality of fixing screws, and when the clearance becomes large, each shim plate is replaced with a thin one.
The above gap was made smaller. However, it takes a lot of time and labor to pull out each shim plate and insert another shim plate for each of a large number of fixing screws, so that regular inspection and other maintenance are difficult.

On the other hand, in the shim plateless clearance adjusting device in the clutch of the press machine and the shim plateless clearance adjusting device in the brake according to the present invention, both of them are rotated by rotating the adjusting bolt. The pressing plate can be moved by a pitch corresponding to the rotation angle, so that the clearance between the friction plate and the pressing plate can be adjusted to an appropriate gap for operating as a clutch or a brake.

Therefore, unlike the conventional one using the gap adjusting shim plate, the gap can be adjusted easily and quickly, and periodic inspection and other maintenance of the press machine can be performed easily.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional front view of a first embodiment of a shim plateless clearance adjusting device in a clutch of a press machine.

FIG. 2 is a partially enlarged vertical front view showing a state in which a clearance is adjusted by rotating an adjustment bolt in the thing shown in FIG.

FIG. 3 is a partially enlarged vertical front view showing a state in which the pressing plate is retracted at the time of operation after the clearance adjustment in the thing shown in FIG. 1.

FIG. 4 is a vertical sectional front view of a second embodiment of the shim plate-less clearance adjusting device in the clutch of the press machine.

FIG. 5 is a partially enlarged vertical sectional front view showing a state at the time of adjusting the clearance by rotating the adjustment bolt for the pressing plate on the back side in the thing shown in FIG.

FIG. 6 is a partially enlarged vertical front view showing a state during adjustment of the gap by rotating the adjusting bolt for the pressing plate on the fixing member side in the arrangement shown in FIG.

FIG. 7 is a partially enlarged vertical sectional front view showing a state in which the pressing plate on the fixing member side is retracted at the time of operation after the clearance adjustment in the thing shown in FIG.

FIG. 8 is a vertical cross-sectional front view of a third embodiment of the shim plate-less clearance adjusting device in the clutch of the press machine.

FIG. 9 is a partially enlarged cross-sectional view showing a state when the clearance is adjusted by rotating the adjustment bolt in the thing shown in FIG.

FIG. 10 is a partially enlarged vertical front view showing a state after the clearance adjustment in the thing shown in FIG.

FIG. 11 is a vertical front view of the first embodiment of the shim plate-less clearance adjusting device in the brake of the press machine.

FIG. 12 is a partially enlarged vertical front view showing a state when the clearance is adjusted by rotating the adjustment bolt in the thing shown in FIG. 11.

FIG. 13 is a partially enlarged vertical front view showing a state in which the pressing plate is retracted at the time of operation after the clearance adjustment in the thing shown in FIG. 11.

FIG. 14 is a vertical cross-sectional front view of a second embodiment of the shim plate-less clearance adjusting device in the brake of the press machine.

FIG. 15 is a partially enlarged cross-sectional view showing a state when the clearance is adjusted by rotating the adjustment bolt in the thing shown in FIG.

16 is a side view of what is shown in FIG. 1. FIG.

[Explanation of symbols]

1-Drive Rotating Unit 2-Clutch Housing 3-Fixing Member 4-Fixing Screw 5-Crankshaft 6-Friction Plate 6a-Friction Plate 6b-Friction Plate 7-Pressing Plate 7a-Pressing Plate 7b-Pressing Plate 8-Spring 8a- Pressing plate 8b-Pressing plate 9-Movable member 10-Seal part 11-Female screw hole 11a-Female screw hole 11b-Female screw hole 12-Adjusting bolt 12a-Adjusting holt 12b-Adjusting bolt 13-Lock nut 14- Back end 14a-Back end 14b-Back end 15-Through hole 16-Brake housing 17-Fixing member 18-Fixing screw 19-Friction plate 20-Pressing plate 21-Spring 22-Movable member 23-Seal part 24-- Female screw hole 25-Through hole 26-Step portion 27-Head 28-Adjusting bolt 29-Lock nut 30-Deep end 31-Pinion 32-Charge port 33-Connecting pin 34- Receiving S- gap S1 - Clearance S2 - Clearance T- gap

Claims (5)

[Claims] 1. A friction plate 6 on the side of a crankshaft 5 is fixed to a side end portion of a clutch housing 2 by fixing a fixing member 3 which is a cylinder or a piston in the circumferential direction with a plurality of fixing screws 4 in the circumferential direction. Clutch housing 2 that can be pressed against friction plate 6
A spring 8 for internally retracting the pressing plate 7 on the side, a spring 8 for retracting the pressing plate 7 toward the fixing member 3 for detaching the plates 6, 7, and a piston for advancing the pressing plate 7 inwardly when air is supplied. In a clutch of a press machine provided with a movable member 9 which is a cylinder, each of the friction plate 6 and one pressing plate 7 that can be pressed against the friction plate 6 is provided, and the pressing plate 7 is a movable member 8. A plurality of female screw holes 11 are formed in the circumferential direction at positions near the outer peripheral portion of the fixing member 3, and adjusting bolts 12 are screwed into the respective female screw holes 11, By allowing the rear end portion 14 to come into contact with the pressing plate 7 and screwing the lock nut 13 outside the fixing member 3, the amount of backward movement of the pressing plate 7 corresponds to the rotation angle of each of the adjusting bolts 12 described above. It is possible to control the press machine Shim plate without clearance adjustment device in. 2. A friction plate 6 on the side of a crankshaft 5 is fixed to a side end of a clutch housing 2 by fixing a plurality of fixing screws 4 in the circumferential direction to a fixing member 3 which is a cylinder or a piston. Clutch housing 2 that can be pressed against friction plate 6
A spring 8 for internally retracting the pressing plate 7 on the side, a spring 8 for retracting the pressing plate 7 toward the fixing member 3 for detaching the plates 6, 7, and a piston for advancing the pressing plate 7 inwardly when air is supplied. In a clutch of a press machine provided with a movable member 9 which is a cylinder, the friction plate 6 is fixed to the friction plate 6a on the rear side and the friction plate 6b on the fixing member 3 side, and the pressing plate 7 is fixed to the pressing plate 7a on the rear side. Two or more pressing plates 7a, 7b are provided like the pressing plate 7b on the member 3 side.
spring 8a for independently retracting b toward the fixing member 3 side,
8b is provided, a plurality of female screw holes 11a are formed in the circumferential direction at positions near the outer peripheral portion of the fixing member 3, and a plurality of female screw holes 11a corresponding to the female screw holes 11a are formed on the pressing plate 7b on the fixing member 3 side. Through hole 1
5, the adjusting bolt 12a is screwed into each female screw hole 11a, the rear end portion 14a can contact the pressing plate 7a on the rear side through each through hole 15, and the lock nut 13 is provided outside the cylinder 3. And a plurality of female screw holes 11b are formed in the circumferential direction at a position near the outer peripheral portion of the fixing member 3, and the adjusting bolts 12b are screwed into the respective female screw holes 11b, and the inner end thereof is screwed. The portion 14b can be brought into contact with the pressing plate 7b on the side of the fixing member 3, and the lock nut 13 is screwed on the outside of the fixing member 3 so that the amount of backward movement of each pressing plate 7a, 7b can be adjusted by the adjusting bolt 12a. , 12b is a shim plateless clearance adjusting device for a clutch of a press machine, which can be regulated to a pitch corresponding to a turning angle. 3. A friction plate 6 on the crankshaft 5 side is fixed to a side end portion of a clutch housing 2 by fixing a circumferential portion of a fixing member 3 which is a cylinder or a piston with a plurality of fixing screws 4 in the circumferential direction. Clutch housing 2 that can be pressed against friction plate 6
Side pressing plate 7 is internally provided, and a spring 8 for retracting the pressing plate 7 toward the fixed member 3 for detaching the plates 6 and 7 and a movable member for advancing the pressing plate 7 inward when air is supplied. In the clutch of the press machine provided with 9 and 9, female screw holes 11 are formed at points or axisymmetrical positions with respect to the respective fixing screws 4 on the fixing member 3, and the female screw holes 11 are provided from the outside of the fixing member 3. In addition, by screwing the adjusting bolt 12 so that the rear end portion 14 can come into contact with the side end portion of the clutch housing 2, the backward movement amount of the pressing plate 7 can be adjusted to the rotation angle of each adjusting bolt 12 described above. A shim plateless clearance adjustment device for clutches of press machines that can be regulated to the corresponding pitch. 4. A friction plate 19 on the crankshaft 5 side is fixed to a side end of a brake housing 16 by fixing a fixing member 17, which is a cylinder or a piston, in the circumferential direction toward the outer peripheral portion with a plurality of fixing screws 18 in the circumferential direction. A pressing plate 20 on the side of the brake housing 16 is installed so as to be capable of being pressed against the friction plate 19, and a spring 21 for advancing the pressing plate 20 inward due to the pressure contact between the both plates 19 and 20 and a pressing plate 20 at the time of air supply are provided. In a brake of a press machine provided with a movable member 22 that retracts to the fixed member 17 side, a plurality of female screw holes 24 are formed in the circumferential direction at a position near the outer peripheral portion of the movable member 22 and the fixed member 17 is provided. A plurality of through holes 25 with step portions 26 are formed corresponding to the female screw holes 24, and a T-shape adjusting bolt 28 with which the head portion 27 can be locked at the step portions 26 is formed in each of the above through holes 25. Inserted Rutotomoni, is screwed into each female screw hole 24 of the movable member 22, the movable member 22
By screwing the lock nut 29 on the outside, the backward movement amount of the pressing plate 20 can be regulated to the pitch corresponding to the rotation angle of each adjustment bolt 28, and the shim plate-less clearance in the brake of the press machine can be regulated. Adjustment device. 5. A friction plate 19 on the crankshaft 5 side is fixed to a side end portion of a brake housing 16 by fixing a peripheral portion of a fixing member 17 which is a cylinder or a piston with a plurality of fixing screws 18 in the circumferential direction. A pressing plate 20 on the side of the brake housing 16 is installed so as to be capable of being pressed against the friction plate 19, and a spring 21 for advancing the pressing plate 20 inward due to the pressure contact between the both plates 19 and 20 and a pressing plate 20 at the time of air supply are provided. In a brake of a press machine provided with a movable member 22 that retracts to the fixed member 17 side, female screw holes 24 are formed at points or line symmetric positions with respect to each fixing screw 18 of the fixed member 17, By pressing an adjusting bolt 28 into the female screw hole 24 from the outside of the fixing member 17 so that the rear end portion 30 can come into contact with the side end portion of the brake housing 16, the pressing plate 20 is pressed. Set the amount of backward movement of the
A shim plateless clearance adjusting device for a brake of a press machine, which can be regulated to a pitch corresponding to a rotation angle of 8.