JP2001252796A - Clutch/brake of machine press - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wet-type clutch/brake of a machine press which can improve the cooling performance and the lubrication performance by changing the direction of the substantially total quantity of the oil flowing an annular space to the axial direction to promote the circulation of the oil. SOLUTION: A partition plate 90 to partition most part of the annular space 81 is fixed to an outer circumferential portion of a brake case 54, and the direction of the substantially total quantity of the oil flowing in the annular space 81 is changed to the axial side as a case member 6 is rotated by the partition plate 90.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wet clutch / brake device for a mechanical press, and in particular, changes a flow direction of oil from an outer peripheral side to an axial center side to promote oil circulation to improve cooling performance and circulation performance. It relates to an enhanced clutch and brake device.

[0002]

2. Description of the Related Art Conventionally, a clutch / brake device of a mechanical press includes a stationary member fixed to a press body and rotatably supporting a flywheel, an output shaft rotatably supported by the stationary member, and a flywheel. A case member that rotates integrally with the housing and houses the clutch mechanism and the brake mechanism, a clutch mechanism that transmits the rotational driving force of the flywheel from the case member to the output shaft, a brake mechanism that brakes the rotation of the output shaft, and a clutch mechanism that is turned on. A switching mechanism including a fluid pressure cylinder for commonly switching on / off and off / on of the brake mechanism is provided.

A multi-plate structure (a plurality of disks and plates) of a clutch mechanism is provided between a rotation input portion of an output shaft and a case member. A brake case is provided inside the case member, and the brake case is fixed to the stationary member. A multi-plate structure (a plurality of disks and plates) of a brake mechanism is provided between the brake case and the rotation input unit. When the clutch mechanism is switched to the connected state by the switching mechanism, the brake mechanism is switched to the disconnected state,
When the clutch mechanism is switched to the disconnected state, the brake mechanism is switched to the connected state.

Normally, in a wet type clutch / brake device, an annular space is formed between a case member and a brake case, oil is contained in the case member, and the brake mechanism and the clutch mechanism are lubricated with the oil to cool. Is done. Oil flowing in the annular space in the same direction as the rotation direction of the case member tends to stick to the inner peripheral surface of the case member due to centrifugal force, so it is difficult for the oil to flow to the axis side, and the oil circulation to the axis side is insufficient. Become. Various techniques have been proposed as countermeasures.

For example, in the clutch / brake device disclosed in Japanese Patent Application Laid-Open No. 10-305400, a radially oriented oil recovery hole is formed in a brake body (clutch body) in order to allow oil flowing in an annular space to flow toward the axial center. And an inclined surface or an upright surface is formed at the outer peripheral end of the oil recovery hole. On the other hand, in the clutch / brake disclosed in Japanese Patent Application Laid-Open No. 9-42340, a box-shaped guide member that opens in the flow direction of the oil in the annular space is fixedly provided on the outer peripheral portion of the brake case. A part of the oil flowing in the space is changed in direction toward the axial center to flow.

[0006]

SUMMARY OF THE INVENTION In a conventional wet-type clutch / brake device for a mechanical press, oil flowing in an annular space as the case member rotates tends to stick to the inner peripheral surface of the case member due to centrifugal force. However, it is difficult for the oil to circulate to the axis side, so that the oil circulation is poor and it is difficult to enhance the cooling performance and the lubrication performance. As a countermeasure, it is conceivable to increase the amount of oil in the case member. However, the rotational resistance of a rotating member such as the case member also increases, the power loss increases, and the oil circulation cannot be improved. Since the rise in the oil temperature due to the stirring of the oil also increases, it is difficult to enhance the cooling performance.

In the clutch / brake device disclosed in Japanese Patent Application Laid-Open No. H10-305400, an oil recovery hole, an inclined surface, and an upright surface are formed in a brake body (clutch body). However, it is difficult to improve the circulation of oil, and the structure is complicated and disadvantageous.

[0008] Japanese Patent Application Laid-Open No. 9-42340 discloses a clutch.
In the brake, the guide member extends only from the brake case to the clutch side, does not extend to both sides of the brake case, and is provided so as to partition a part (about 1/2) of the annular space outside the brake case. Because
Only a part of the oil flowing in the annular space can be changed in the axial direction by the guide member. In addition, since a large-diameter hydraulic cylinder is disposed between the brake mechanism and the clutch mechanism, the oil whose direction has been changed by the guide member hardly flows toward the shaft center. There is.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wet clutch / brake device for a mechanical press, in which the amount of oil accommodated in a case member is reduced to suppress oil agitation and power loss, and to flow in an annular space. To change the direction of almost all the oil to be applied to the axial center side to promote the circulation of the oil to enhance the cooling performance and the lubrication performance.

[0010]

According to a first aspect of the present invention, there is provided a clutch / brake device for a mechanical press, which is capable of transmitting a rotational driving force of a flywheel of a mechanical press to an output shaft, and capable of braking the rotation of the output shaft. A wet-type clutch / brake device provided with a brake mechanism, a case member integrally rotating with the flywheel, a brake case disposed inside the case member and fixed to a stationary member, And an annular space formed so that oil circulates between the case member and at least one partition plate for partitioning most of the annular space is fixedly provided on the outer peripheral portion of the brake case. Characterized in that substantially the entire amount of oil flowing in the annular space with the rotation of the case member is changed in the axial direction. It is.

When the flywheel rotates, the case member also rotates, and the oil flows in the rotational direction in the annular space between the case member and the brake case. At this time, since the brake case is provided with at least one partition plate that partitions most of the annular space and does not rotate, the partition plate allows substantially the entire amount of oil flowing in the annular space to move along the axial center. The direction is changed to the side.

Thus, the oil whose direction has been changed toward the axis is
Since the oil flows toward the brake mechanism and the clutch mechanism on the shaft center side and then returns to the annular space on the outer peripheral side, the circulation of oil is promoted and the cooling performance is remarkably improved. The partition plate suppresses oil agitation, thereby suppressing an increase in oil temperature. Also, since almost the entire amount of oil flowing in the annular space can be changed in the direction of the axis, the amount of oil stored in the case member can be reduced, and power loss and agitation loss due to oil in the case member can be reduced. It can also be reduced.

According to a second aspect of the present invention, there is provided a clutch / brake device for a mechanical press according to the first aspect of the present invention, wherein the partition plate has a projecting portion extending to both sides in the axial direction of the brake case, and a distal end on the outer peripheral side of the partition plate. The portion is curved in a direction opposite to the flow direction of the oil. The partition plate is provided with overhangs that protrude on both sides in the axial direction of the brake case, so that the oil flowing in the annular space can be redirected from both sides of the brake case to the shaft center, so that the shaft on both sides of the brake mechanism Oil flows. Since the outer peripheral end of the partition plate is curved in the direction opposite to the flow direction of the oil, the oil flowing in the annular space can be surely changed in the direction of the axial center smoothly.

According to a third aspect of the present invention, there is provided a clutch / brake device for a mechanical press according to the first or second aspect of the present invention, wherein an oil flow gap is formed between a clutch disk and a support disk supporting a multi-plate structure of the brake mechanism. It is characterized by the following. The oil whose direction has been changed from the annular space toward the shaft center can be guided from the oil flow gap toward the shaft center and flow to the clutch mechanism. By appropriately setting the arrangement position of the support disk and the shape of the outer peripheral portion, the flow rate ratio of the amount of oil introduced into the brake mechanism and the clutch mechanism from the annular space can be appropriately set.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. This embodiment is an example in which the present invention is applied to a wet clutch / brake device of a mechanical press. Note that the left side of FIG. 1 is described as a left side.

As shown in FIGS. 1 and 2, a clutch / brake device 1 of a mechanical press has a stationary member 3 rotatably supporting a flywheel 2 and a support shaft 4c rotatably supported on the stationary member 3. Output shaft 4, a rotary input member 5 externally fitted and fixed to an input shaft portion 4f on the right side of the output shaft 4, a clutch fixed to the flywheel 2 and extending rightward to rotate integrally with the flywheel 2 and engage the clutch. A case member 6 that accommodates the mechanism 7 and the brake mechanism 8, and a clutch mechanism 7 that can transmit the rotational driving force of the flywheel 2 from the case member 6 to the output shaft 4.
And a switching mechanism 9 including an air cylinder 60 for commonly switching on / off of the clutch mechanism 7 and off / on of the brake mechanism 8.

The stationary member 3 includes a large-diameter cylindrical portion 10 and a small-diameter cylindrical portion 1.
1, a flange 12, an outer cylinder 14, and the like are integrally formed, and an outer peripheral portion of the flange 12 is bolted to a press body 13. An annular member 16 is bolted to the right end of the small-diameter cylindrical portion 11, and a cylindrical member 17 is attached to an outer peripheral portion of the annular member 16.
Are connected to each other by bolts and extend rightward. The annular member 16 and the tubular member 17 constitute a brake case 54.
The flywheel 2 is externally fitted to the small-diameter cylindrical portion 11 via a pair of radial bearings 20 and 21, and the outer cylindrical portion 14 and the left end disk portion 2a of the flywheel 2 located inside the outer cylindrical portion 14.
An annular seal 22 is provided therebetween. Large diameter cylinder 10
The ring member 15 is bolted to the left end of the.

The output shaft 4 extends to the left and right sides through the cylindrical portions 10 and 11 of the stationary member 3, and from the left side, the output shaft portion 4a, the large-diameter shaft portion 4b, the support shaft portions 4c and 4d, and the insertion shaft portion 4e. , The input shaft 4f and the like are integrally formed. The support shaft portion 4c is internally fitted to and supported by the large-diameter cylindrical portion 10 of the stationary member 3 via a two-row conical roller bearing 30, and the support shaft portion 4g located on the left side of the output shaft portion 4a of the output shaft 4 is connected to the radial bearing 31. And is rotatably supported on the press body 13 side. Output shaft 4
A gear member 34 is fixed to a, and the gear member 34 meshes with a gear 33 connected to a crankshaft (not shown). An annular seal 35 is provided between the support shaft 4 d and the stationary member 3.

The rotary input member 5 is externally fitted to the insertion shaft portion 4e and the input shaft portion 4f, and is spline-connected to the input shaft portion 4f so as to be relatively non-rotatable. A locking plate 40 having a larger diameter than the input shaft 4f is bolted to the right end surface of the input shaft 4f. The case member 6 includes a cylindrical case 45 bolted to the flywheel 2 and extending rightward,
A head-side case cover 46 is bolted to the right end of the cylindrical case 45. A ring-shaped receiving portion 45a projecting toward the axial center is formed integrally with a central portion in the left-right direction of the cylindrical case 45, and a cylindrical member 47 extending rightward is bolted to a right end of the receiving portion 45a.

The clutch mechanism 7 has a plurality of (for example, eight) clutch plates 50 spline-connected to the cylindrical member 47 so as to be fitted inside, and is spline-coupled to the right half of the rotary input member 5 so as to be fitted outside. It has a multi-plate structure including a plurality of (for example, seven) clutch disks 51. These clutch plates 5
0 and the clutch discs 51 are alternately arranged, and the clutch discs 50 are located at the left and right ends of the multi-plate structure.
Receiving portion 45a and the piston member 62 of the air cylinder 60
, Respectively.

The multi-plate structure is pressed by the output portion 63 of the piston member 62, the multi-plate structure is sandwiched between the output portion 63 and the receiving portion 45a, and the clutch mechanism 7 is connected, and the flywheel 2 The rotation driving force is transmitted from the case member 6 to the rotation input member 5 (output shaft 4). On the other hand, if the multi-plate structure is not pressed by the output portion 63 of the piston member 62, the clutch mechanism 7 is in the disconnected state, and the rotational driving force is not transmitted to the rotational input member 5.

The brake mechanism 8 includes a plurality of (for example, four) brake plates 55 spline-connected to the tubular member 17 of the brake case 54 in an in-fit manner, and an outer-fit shape on the left half of the rotation input member 5. (For example, 4
Of the brake disc 56. The brake plates 55 and the brake disks 56 are alternately arranged, and the brake disks 56 and the brake disks 56 are provided at the left end of the multi-plate structure.
And the brake disk 55 is located at the right end of the multi-plate structure,
8. With this support disk 58,
The multi-plate structure of the brake mechanism 8 is received.

The multi-plate structure is pressed by the brake-side annular member 71, and the multi-plate structure is sandwiched between the brake-side annular member 71 and the support disk 58, and the brake mechanism 8
Is connected, and the rotation of the rotation input member 5 (output shaft 4) is braked. On the other hand, if the plurality of brake plates 55 and the brake disks 56 are not pressed by the brake-side annular member 71, the brake mechanism 8 will be in a divided state, and the rotation input member 5
Will not be braked. Here, the support disk 58 is externally fitted to the rotation input member 5 and non-rotatably spline-coupled, and a plurality of pins 58a for regulating the rightward movement of the support disk 58 are implanted in the rotation input member 5. ing.

The switching mechanism 9 performs the connection of the clutch mechanism 7 and the disconnection of the brake mechanism 8 in conjunction with each other, and performs the disconnection of the clutch mechanism 7 and the connection of the brake mechanism 8 in conjunction with each other. The switching mechanism 9 includes a single-acting air cylinder 60,
It has an annular member 70, a brake-side annular member 71, a plurality of bolts 72, a thrust bearing 73, a plurality of brake springs 74, a compression spring 75, and the like.

The air cylinder 60 includes a cylinder body composed of the right side of the cylindrical case 45 of the case member 6 and the head-side case cover 46, and a piston member 62 movably fitted in the cylindrical case 45 via an annular seal 69. Have. An air chamber 64 is formed between the piston member 62 and the head-side case cover 46. The head-side case cover 46 has an air supply port 65 for supplying pressurized air to the air chamber 64.
Are formed.

A ring-shaped output portion 63 projecting leftward is provided at a portion of the piston member 62 facing the clutch plate 50.
The output portion 63 transmits the pressing force of the piston member 62 to the clutch plate 50. A plurality of radially oriented oil passages 63a for oil circulation are formed in the output portion 63 at appropriate circumferential intervals. A convex portion 62a projecting leftward is formed at the center of the piston member 62, and the piston member 62 is elastically urged leftward between the piston member 62 and the head-side case cover 46 on the right side of the convex portion 62a. A compression spring 75 is mounted.

The annular member 70 is disposed between the rotation input member 5 and the piston member 62, and the brake-side annular member 71 is disposed between the rotation input member 5 and the annular member 16 of the brake case 54. A plurality of bolt holes 5a are formed in the rotation input member 5 in the axial direction, and the two annular members 70, 71 are integrally connected by a plurality of bolts 72 and the like slidably inserted through the bolt holes 5a. I have. This allows
The two annular members 70 and 71 can move integrally in the axial direction, and rotate integrally with the input member 5.

The thrust bearing 73 includes an annular member 70
And the compression spring 7
The piston member 62 elastically biased to the left by 5 is always in pressure contact with the thrust bearing 73. A plurality of brake springs 74 for disengaging the clutch mechanism 7 and connecting the brake mechanism 8 (braking state) to the plurality of spring receiving holes 44 of the rotation input member 5.
Are housed respectively.

The urging force of the plurality of brake springs 74 is greater than the urging force of the compression springs 75. When the air cylinder 60 is not operating, the brake spring 74 moves the annular member 70 and the brake-side annular member 71 rightward. The clutch mechanism 7 is separated and the brake mechanism 8 is connected. On the other hand, when the air cylinder 60 operates and the piston member 62 is driven to the left, the annular member 70 and the brake-side annular member 71 move to the left against the urging force of the compression spring 75, and the clutch mechanism 7 operates. The connection state is established, and the brake mechanism 8 enters the disconnected state.

As shown in FIG. 2 to FIG.
The brake device 1 includes a flywheel 2, a stationary member 3,
In a portion surrounded by the case member 6, the piston member 62, and the like,
An oil storage unit 80 that stores oil for cooling and lubrication is provided. An annular space 81 is formed between the brake case 54 and the case member 6 in the oil storage portion 80 so as to circulate oil. The oil in the annular space 81 is rotated by rotation of the case member 6. It flows in the direction of rotation of the case member 6.

As shown in FIG. 3 to FIG.
Two partition plates 90 for partitioning most of 1 are fixedly provided on the outer peripheral portion of the brake case 54. These two partition plates 90 are provided at symmetrical positions with respect to the axis, and are disposed at positions shifted from the upper and lower ends of the brake case 54 by about 30 degrees in the rotation direction (oil flow direction) of the case member 6. I have.

Each partitioning plate 90 extends from the right overhanging portion 90b to the axial center side from the overhanging portions 90a, 90b which extend to both sides in the axial direction of the brake case 54, and reaches to the right side of the outer peripheral portion of the brake case 54. It has an extended portion 90c and is provided with almost no gap between members (the flywheel 2 and the case member 6) constituting the annular space 81. Each partition 9
Numeral 0 is curved so as to face in the direction opposite to the oil flow direction, and the end of the partition plate 90 on the oil flow direction side is supported by a pair of support pieces 90d.

As shown in FIGS. 4 and 5, an annular space 81 is provided in the cylindrical member 17 of the brake case 54 on the side opposite to the oil flow direction with respect to each partition plate 90 and near the partition plate 90. An oil introduction hole 54a for introducing oil into the inside of the brake case 54 is formed.
An oil discharge hole 54b through which oil inside the brake case 54 can be discharged to the annular space 81 is formed at a substantially intermediate position of the oil discharge hole 54b. In the annular member 16 of the brake case 54, a plurality of oil introduction holes 54c for introducing the oil on the left side of the annular member 16 into the inside of the brake case 54 are formed.

Reference numeral 54d denotes an insertion hole through which the output shaft 4 is inserted.
54e is a bolt hole through which a bolt for fixing the annular member 16 to the stationary member 3 is inserted, and 54f is a spline tooth formed on the inner surface of the cylindrical member 17. An oil flow gap 82 is formed between the clutch mechanism 7 and the support disk 58 that supports the multi-plate structure of the brake mechanism 8.

The operation and effect of the wet clutch / brake device 1 will be described. When the case member 6 rotates integrally with the flywheel 2, the oil flows in the annular space 81 in the rotation direction of the case member 6 with this rotation. Two partition plates 9 that partition most of the annular space 81
By the two partition plates 90 which are 0 and are fixedly provided on the outer peripheral portion of the brake case 54, substantially the entire amount of oil flowing in the annular space 81 is changed in the direction toward the axis.

Most of the oil whose direction has been changed by the partition plate 90 flows toward the shaft center through the left and right sides of the brake case 54, and a part of the oil flows to the cylindrical member 17 of the brake case 54. The oil is directly introduced into the brake case 54 through the formed oil introduction hole 54a. Brake case 54
Some or all of the oil flowing to the axis side through the left side of
The oil is introduced into the brake case 54 through an oil introduction hole 54 c formed in the annular member 16 of the brake case 54.

The oil flowing toward the shaft center through the right side of the brake case 54 is distributed by the support disk 58,
Part of the oil is supplied to the brake mechanism 8 in the brake case 54.
The remaining oil is guided from the oil flow gap 82 toward the shaft center and flows toward the clutch mechanism 7. A part of the oil in the brake case 54 is discharged and returned to the annular space 81 through an oil discharge hole 54b formed in the tubular member 17. Part of the oil in the brake case 54 flows to the clutch mechanism 7 side, and the oil in the clutch mechanism 7 is
The air is returned to the annular space 81 through a predetermined return path of zero.

Since two partition plates 90 for partitioning most of the annular space 81 are fixedly provided on the outer peripheral portion of the brake case 54, the annular space 8 is rotated as the case member 6 rotates.
Almost the entire amount of the oil flowing in 1 can be changed in the direction toward the axis. As a result, the oil whose direction has been changed from the outer peripheral side (annular space 81) of the brake case 54 to the axial center side flows toward the brake mechanism 8 and the clutch mechanism 7 on the axial central side, and then flows into the annular space 81 on the outer peripheral side. Therefore, the circulation of the oil is promoted and the cooling performance and the lubrication performance can be remarkably enhanced.

Further, since the agitation of the oil is suppressed by the partition plate 90, the rise in the oil temperature can be suppressed, and almost the entire amount of the oil flowing in the annular space 81 can be changed in the axial direction.
The amount of oil stored in the oil storage section 80 in the case member 6 can be reduced, and power loss and stirring loss due to the oil in the oil storage section 80 can be reduced.

Since the partition plate 90 has the projecting portions 90a and 90b projecting to both sides in the axial direction of the brake case 54, the oil flowing in the annular space 81 is changed in direction toward the axial center on both sides of the brake mechanism 8. Can be. Partition plate 90
Is curved in the direction opposite to the flow direction of the oil, so that the oil flowing in the annular space 81 can be surely changed in the direction of the axial center smoothly.

Since the oil flow gap 82 is formed between the support disk 58 that supports the multi-plate structure of the brake mechanism 8 and the clutch mechanism 7, the oil flowing from the annular space 81 toward the shaft center is passed through the oil flow gap 82. Through the clutch mechanism 7
And the support disk 58
By appropriately setting the arrangement of the and the shape of its outer peripheral part,
Clutch mechanism 7 and brake mechanism 8 from annular space 81
The distribution ratio (flow rate ratio) of the amount of oil introduced into the tank can be appropriately adjusted.

The two partition plates 90 are provided at symmetrical positions with respect to the axis, and the rotational direction of the case member 6 (from the upper and lower ends of the brake case 54 to the clutch / brake device 1 arranged in the left-right direction). Since it is arranged at a position shifted by about 30 degrees with respect to the flow direction of the oil, especially the oil which directly hits the upper partition plate 90 and is changed in direction, and does not reach the partition plate 90 but just before it (the flow direction of the oil). The oil whose direction is changed on the opposite side) surely flows toward the axis of the case member 6 under the influence of gravity. That is, at the optimal position of the top of the annular space 80 where the gravity is directed substantially toward the axis, most of the oil can be surely changed its direction toward the axis of the case member 6 and flow. It is effective in promoting circulation.

Incidentally, only one partition plate 90 may be provided on the outer peripheral side of the brake case 54. In this case, a position shifted from the upper end (top) of the brake case 54 by an appropriate angle (preferably about 30 degrees) within the range of about 0 to 30 degrees in the rotation direction (the direction of oil flow) of the case member 6. It is desirable to arrange. In this case, as described above, the annular space 80
Of the optimal position of the upper end portion where the gravity is almost toward the axis,
Most of the oil can be surely changed in direction toward the center of the case member 6 to flow, which is effective in promoting oil circulation. Three or more partition plates 90 may be provided on the outer peripheral side of the brake case 54. In this case, it is desirable to arrange the plurality of partition plates 90 at equal intervals on the outer peripheral side of the brake case 54.

The clutch / brake device of the mechanical press according to the present invention is not limited to the clutch / brake device according to the above-described embodiment, but may be embodied in variously modified forms without departing from the spirit of the present invention. It is.

[0045]

According to the first aspect of the invention, at least one partition plate that partitions most of the annular space between the brake case and the case member is fixedly provided on the outer peripheral portion of the brake case. A substantially entire amount of the oil flowing in the annular space with the rotation of the shaft can be changed in the axial direction. As a result, the circulation of oil from the outer peripheral side of the brake case to the shaft center side is promoted, so that the cooling performance and the lubricating performance can be significantly improved. Oil agitation by the partition plate can be suppressed to prevent an increase in oil temperature as much as possible. It is not necessary to increase the amount of oil contained in the case member, and it is also possible to reduce the amount of oil. Therefore, power loss and agitation loss due to agitation of the oil in the case member can be reduced.

According to the second aspect of the present invention, since the partition plate has the projecting portions projecting to both sides in the axial direction of the brake case, the oil flowing in the annular space is changed in direction toward the axial center on both sides of the brake mechanism. can do. Since the partition plate is curved in the direction opposite to the flow direction of the oil, the oil flowing in the annular space can be surely changed in direction toward the axial center. Other effects are the same as those of the first aspect.

According to the third aspect of the present invention, since the oil flow gap is formed between the support disk supporting the multi-plate structure of the brake mechanism and the clutch mechanism, the oil whose direction has been changed from the annular space toward the shaft center can be removed. The oil can flow to the clutch mechanism through the oil flow gap, and by appropriately setting the position of the support disk and the shape of the outer peripheral portion, the distribution of the amount of oil introduced from the annular space to the clutch mechanism and the brake mechanism The ratio can also be adjusted. The other effects are the same as those of the first or second aspect.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a clutch / brake device according to an embodiment of the present invention.

FIG. 2 is an enlarged longitudinal sectional view of a main part of the clutch / brake device.

FIG. 3 is a sectional view taken along line II-II of FIG.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 1;

FIG. 5 is a perspective view of a brake case and a partition plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Clutch / brake device 2 Flywheel 3 Stationary member 4 Output shaft 6 Case member 7 Clutch mechanism 8 Brake mechanism 54 Brake case 58 Support disk 81 Annular space 82 Oil flow gap 90 Partition plates 90a, 90b Overhangs

Claims (3)

[Claims] 1. A wet clutch comprising a clutch mechanism capable of transmitting the rotational driving force of a flywheel of a mechanical press to an output shaft, and a brake mechanism capable of braking the rotation of the output shaft.
In the brake device, a case member that rotates integrally with the flywheel, a brake case that is disposed inside the case member and that is fixed to a stationary member, and allows oil to circulate between the brake case and the case member. And at least one partition plate for partitioning most of the annular space is fixedly provided on the outer periphery of the brake case, and this partition plate allows the inside of the annular space to rotate in the direction of rotation of the case member. A clutch / brake device for a mechanical press, wherein a substantially entire amount of flowing oil is changed in a direction toward an axis. 2. The partition plate according to claim 1, wherein the partition plate has a projecting portion extending to both sides in the axial direction of the brake case, and the partition plate is curved in a direction opposite to a flowing direction of the oil. Mechanical press clutch and brake equipment. 3. The clutch / brake mechanism for a mechanical press according to claim 1, wherein an oil flow gap is formed between a support disk supporting the multi-plate structure of the brake mechanism and a clutch mechanism. .