KR0134720Y1 - Torque limiter device for power transmission - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

The present invention relates to a power transmission device attached between drive shafts for power transmission of a power generating unit in an industrial machine.

2. The technical problem the invention is trying to solve

It is difficult to control the load force precisely because it is difficult to control the torque of the load force that exceeds the disc plate specified value and causes the power loss due to the disc plate breakage and sliding friction.

3. Summary of solution of design

Power transmission is achieved by joint friction application of external tooth copper sintering lining and internal gear friction plate. When the load exceeds the specified value, the power is interrupted by sliding friction and the proper torque adjustment is made to the power generating part and the driving shaft or driven shaft. Being able to prevent the load exactly.

4. Important uses of the devise

Attached to the power transmission part of an industrial machine with a large load.

Description

Torque limiter device for power transmission

1 is a perspective view showing an exploded embodiment of the present invention

2 is a cross-sectional view showing a state in which the subject innovation is coupled between the drive shaft

3 is a partial cross-sectional view showing the torque control state of the present invention

4 is a side view showing a partial cross-sectional view of the torque adjustment nut according to an embodiment of the present invention

5 is a plan view showing a state coupled to the reducer and the driven shaft as another embodiment of the present invention

6 is a cross-sectional view showing another embodiment of the present invention

* Explanation of symbols for main parts of the drawings

2: housing 3: internal gear

5: friction plate 7: coupling jaw

10: spline gear shaft 11: spline gear

12: torque adjusting bolt 14: external car copper sintering lining

14b: meshing gear 15: inner tooth friction plate

15b: meshing gear 20: torsion spring cover

22: meshing gear 24: torsion spring

30: torque adjustment nut 40: sprocket

43: reducer 44: circular shaft

The present invention relates to a power transmission device attached between drive shafts for the purpose of power transmission of a power generating unit in an industrial machine. In detail, when a load generated on a drive shaft exceeds a specified level, sliding friction occurs at a joint surface that transmits rotational force. It relates to a power transmission torque limiter device that can prevent the load of the drive shaft more than specified to prevent damage to the machine.

Rotational force generated from power generators such as power motors or power engines of industrial machines is usually transmitted to the driving and driven shafts and converted into linear or reciprocating motion to perform various tasks. If a large load over the specified value acts on the driven shaft that transmits the gear, the corresponding large load will be applied to the gear shaft or the driving shaft coupled with the chain and the gear and chain or the power generator will be damaged. do.

Recently, a power transmission device made of asbestos disk plate is used to reduce the damage of motor, engine, motor shaft, and driven shaft, which are the power generating units. This power transmission device is difficult to control the torque of the load force acting more than the specified value is difficult to accurately prevent the load force, the problem that causes the power loss due to the breakage and sliding friction of the disk plate.

The present invention is devised to solve the above problems, attached to the drive shaft is connected to the power transmission by the joint friction action, when the load over the specified value, the power is shut off by sliding friction and the appropriate torque control is enabled to generate power It is an object of the present invention to provide a torque limiter device for power transmission that can accurately prevent loads on the negative and driven shafts or driven shafts.

The present invention for achieving the above object is an outer groove copper sintering lining and the insertion groove is formed on the inner side and the toothed gear is formed on the outer circumference and both sides are copper sintered friction surface,

Internal tooth friction plate having a meshing gear formed therein and a friction surface on both sides thereof;

A spline gear shaft having a coupling groove into which a driving shaft is fitted and forming a spline gear on the circumferential surface such that the outer tooth copper sintering lining and the inner tooth friction plate are stacked and stacked, and a torque adjusting bolt is formed at a side end thereof;

A torsion spring cover having a toothed gear formed to allow torque adjustment by bonding friction to the outer tooth copper sintering lining and the inner tooth friction plate that are coupled to the spline gear to be stacked, and the torsion spring is fitted to one side thereof; ,

A torque adjusting nut which is loaded on the torque adjusting bolt of the spline gear shaft and presses the torsion spring cover to enable power transmission and torque adjustment;

The external gear copper sintering lining and the internal gear friction plate is fitted into the internal gear is formed so that the laminated spline gear shaft is coupled, the friction plate is attached to the inner surface so that the external friction copper sintering lining and the joint friction action for power transmission is made It is a structural feature that consists of a housing in which the engaging groove is fitted.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing the torque limiter device 1 for power transmission according to the present invention, and the torque adjusting nut 30 located on the outside is cut and cut on the upper side to make the inner diameter smaller or larger. Insert the washer 33 and cut to tighten the tightening bolt 32 to form a side to form a fastening and the torque adjustment nut 30 and the torsion spring cover 20 is pressed into a coil form on one side A plurality of insertion grooves 23 into which a plurality of torsion springs 24 are fitted are formed, and gear teeth-like engagement gears 22 are formed in the inner center thereof, and torque adjustment nuts 30 are formed on opposite sides of the insertion grooves 23. ) Is formed by protruding the contact portion 21 in compression contact.

In addition, a gear tooth-shaped engagement gear 15b is formed in the inner center, and a disc-shaped inner tooth friction plate 15 is formed on both sides of the friction surface 15a, and a circular insertion groove 14c is formed in the inner center. Both sides are formed of a copper sintered friction surface 14a formed of copper sintering, and toothed toothed gears 14b are formed on an outer circumferential surface of a disk shape to form an external tooth sintered lining 14.

The torque adjusting nut 12 is filled with the torque adjusting nut 12 is formed to one side, and a plurality of outer tooth copper sintering lining 14 and a plurality of inner tooth friction plate 15 is stacked so that the tooth teeth form a long stack. The spline gear 11 of the spline gear shaft (10) is formed on the outer circumferential surface and the coupling groove (13) to which the driving shaft (44) of the power transmission is coupled to the center is formed, the upper and lower grooves (13a) to form a spline gear shaft (10) Is achieved.

In addition, the plurality of outer tooth copper sintering lining 14 and the plurality of inner tooth friction plate 15 is provided with an inner space (4) so that the spline gear shaft (10) in which a plurality of layers are laminated, the inner space (4) On the inner circumferential surface is formed an internal gear (3) in which the meshing gear (14b) of the outer tooth sintering lining (14) is bitten, To form a coupling groove 9 in which a key groove 9a is formed so that another cylindrical shaft 44 is coupled to the inner space 4 and is fixed to the opposite side of the inner space 4. The housing 2 is constructed by protruding the engaging jaw 7 in which the fastening groove 8a into which the bolt 8 is fitted is formed.

An annular friction plate (5) having a plurality of fixing grooves (6b) formed by a plurality of fixing grooves (6b) to be coupled to the fixing surface (5a) formed on the inner side of the housing (2) to friction with the externally sintered lining (14). ) Is formed and attached to the fixed surface (5a) with a fixing bolt (6) constitutes a torque limiter device (1) for power transmission of the present invention.

2 and 3 are cross-sectional views of the present invention coupled between the main shaft 44, first attaching the annular friction plate 5 to the fixing surface (5a) of the housing (2) with a fixing bolt (6) Inserting the outer tooth copper sintering lining 14 into the spline gear shaft 10 through the insertion groove 14c and engaging the spline gear 11 with the fitting gear 15b formed in the inner tooth friction plate 15. A plurality of outer tooth copper sintering lining 14 and a plurality of inner tooth friction plate 15 is coupled to the spline gear shaft 10 so as to be stacked in a stack, and the torque by compression to the inner tooth friction plate 15 coupled to the outside The torsion spring cover 20 in which a plurality of torsion springs 24 are fitted is connected to each other by fitting the spline gear 11 and the engagement gear 22 formed therein to each other and then compressing the torsion spring cover 20. Torque jaws formed to provide fine torque control By tightening the torque adjustment bolt 12 in the nut 30, the clamping groove (31) a spline gear shaft 10 of the body are integrated together hanmom.

External gearless sintering linings having a plurality of internal gears 3 formed on the inner circumferential surface of the inner space 4 and the spline gear shafts 10 formed to couple the integrated spline gear shaft 10 to the housing 2. Assembling is performed by engaging the engagement gear 14b formed on the outer circumferential surface of 14) to be engaged with each other.

Attachment of the assembled torque transmission limiter device 10 of the present invention can be attached between the driving shaft 44 or on one side of the power generating unit, and the mounting of the driving shaft 44 is performed by the spline gear shaft 10. The driving shaft 44 is configured on both sides to be coupled to the key groove 13a and the key groove 9a of the housing 2, and first, the coupling jaw 47 is formed in the coupling groove 13 of the spline gear shaft 10. A side end of the torque adjusting bolt 12 formed on one side of the spline gear shaft 10 and the coupling jaw 47 of the circular shaft 44 fitted with the primary shaft 44 is fitted in close contact with the opposite side of the primary shaft. (44) is inserted into the coupling groove (9) of the housing (2) and tightening the fixing bolt (8) to secure the driving shaft (44) to complete the attachment.

As shown in FIG. 3, the power transmission is performed by contact friction between the friction plate 5 attached to the housing 2 and the frictional friction surface 14a of the external tooth sintering lining 14. When the 44 is driven, the spline gear shaft 10 rotates, and the inner tooth friction plate 15 engaged therewith is also rotated and the outer tooth which is in contact with the inner friction plate 15 by the torsion spring 24 to be crushed by frictional contact. The differential sintering lining 14 is also rotated and the rotating copper sintering 14 and the friction plate 5 become contact friction so as to rotate the housing 2 to which the opposing motive shaft 44 is coupled to the opposite side. The driving force is transmitted to the driving shaft 44 of.

The external tooth sintering lining 14 is rotated in a state in which the internal gear 30 and the meshing gear 14b of the housing 2 are coupled.

The torque adjusting nut 30 is tightened or loosened to the torsion spring cover 20 that compresses the torsion spring friction plate 15 by the elasticity of the torsion spring 24 to finely adjust the torque of the driving shaft 44. It becomes possible.

When the load exceeds the prescribed value on the driving shaft 44, the friction plate 5, the outer tooth copper sintering lining 14 and the internal gear friction plate 15 cause sliding friction to block the load, and the sliding friction is lowered below the prescribed value. When raising, tighten the torque adjusting nut 30 to press the torsion spring cover 20 to adjust the torque of the drive shaft 44 to an appropriate prescribed value.

4 is a side view showing the torque adjusting nut 30 and tightens the upper tightening bolt 32 to prevent loosening from the torque adjusting bolt 12 after the adjustment of the torque to an appropriate prescribed value and a plurality of fastening holes 34 on the outer circumferential surface thereof. Easy to form and loosen or tighten.

5 and 6 show yet another embodiment of the present invention, the present invention is attached to the drive shaft 44 of the power motor shaft or reducer 43 is attached to the driven shaft 45 as a chain (40a) It is configured to transmit power to the sprocket 46 to insert the bearing 42 inside the housing 2 and to form one side of the spline gear shaft 10 to form an insertion shaft (10a) coupled to the bearing 42 When the housing 2 and the spline gear shaft 10 causes sliding friction due to the load, the housing 2 and the spline gear shaft 10 can be smoothly rotated, and the coupling part 8b to which the sprocket 40 is attached is fixed to one side of the housing 2. The sprocket 40 is attached to the housing 2 by the bolt 41, so that the present invention can be attached to the driving shaft 44 of the power motor shaft or the reducer 43.

The present invention made as described above is capable of adjusting torque to apply bid friction, so that the load force can be adjusted to an appropriate regulation value, so that accurate load blocking is possible when the load is applied, and it is easily attached to the driving shaft and the power generating part and Even if the power transmission torque is lowered due to wear, the manufacturing section is made simple and in case of breakage, it is easy to repair and can be used semi-permanently.

Claims (2)

Insertion groove 14c is formed, the engagement gear 14b is formed in the circumference, the outer tooth copper sintering lining 14 and the engagement gear 15b which both sides form the sintered friction surface 14a, and the engagement gear 15b are formed in both sides, The inner tooth friction surface 15 constituting the friction surface 15a and the engaging groove 13 into which the driving shaft 44 is fitted are formed, and the outer tooth copper sintering lining 14 and the inner tooth friction plate 15 are formed. Spline gear 11 is formed on the outer circumferential surface so that the overlap is inserted and stacked, and the spline gear shaft 10 having the torque adjusting bolt 12 is formed at the side end, and the spline gear 11 of the spline gear shaft 10 is coupled to the overlap. Insertion groove 23 in which a toothing gear 22 is formed on the laminated outer tooth copper sintering lining 14 and the inner tooth friction plate 15 so as to allow torque adjustment by joint friction and a torsion spring 24 is fitted on one side thereof. ) Is formed a torsion spring cover 20, and the torque adjustment bolt 12 of the spline gear shaft 10 ) Is pressed into the torsion spring cover 20 and the torque adjusting nut 30 formed to enable power transmission and torque adjustment, and the outer tooth copper sintering lining 14 and the inner tooth friction plate 15 are stacked and stacked. The internal gear 3 is formed so that the spline gear shaft 10 is coupled, and the friction plate 5 is attached to the inner surface of the external shaft copper sintering lining 14 and a joint friction action for power transmission. A torque limiter device for power transmission, characterized in that it comprises a housing (2) formed with a coupling groove (9) into which 44 is fitted. The spline gear shaft (10) is coupled to the bearing (42) inside the housing (2) to which the spline gear shaft (10) is coupled. And a coupling part 8b to which the power transmission sprocket 40 is fastened to one side end of the housing 2, wherein the torque limiter device for power transmission is formed.