Integrated diaphragm brake coupling

Abstract

The present invention discloses an integrated diaphragm brake coupling, comprising a housing, a main shaft, a coupling bearing, an output flange, a diaphragm, a clutch connector and a clutch drive device. The main shaft coaxially connected to the motor is axially stopped and can be rotated in the circumferential direction and is installed in the housing. The coupling bearing is sleeved on the outside of the main shaft, the outer ring of the coupling bearing is fixedly connected to the housing, the inner ring of the coupling bearing is fixedly connected to the output flange, one end of the diaphragm is fixedly connected to the main shaft and the inner ring of the coupling bearing, the clutch connector is movably installed on the housing, the clutch connector can connect or separate the other end of the diaphragm to the outer ring of the coupling bearing, and the clutch drive device drives the clutch connector to move. The present invention improves the braking efficiency, protects the motor main shaft, and is beneficial to extending the service life of the motor.

Description

Technical Field

[0001] The invention relates to a coupling, in particular to an integrated diaphragm brake coupling. Background Art

[0002] The power output of the motor is connected through the main shaft and the rotating part through a key structure. When the rotating part needs to stop, the motor is powered off and the brake structure directly brakes the rotating part. This causes the motor main shaft to generate huge torque, which can easily damage the motor. Summary of the invention

[0003] In order to overcome the above-mentioned defects, the present invention provides an integrated diaphragm brake coupling, which can achieve synchronous braking of the motor main shaft and the output flange, thereby avoiding damage to the motor main shaft during braking.

[0004] The technical solution adopted by the present invention to solve its technical problems is: an integrated diaphragm brake coupling, including a housing, a main shaft, a coupling bearing, an output flange, a diaphragm, a clutch connecting piece and a clutch driving device, which is used to axially stop the main shaft coaxially connected to the motor and is installed in the housing for rotation in the circumferential direction, the coupling bearing is sleeved on the outside of the main shaft, the outer ring of the coupling bearing is fixedly connected to the housing, the inner ring of the coupling bearing is fixedly connected to the output flange, one end of the diaphragm is fixedly connected to the main shaft and the inner ring of the coupling bearing, the clutch connecting piece is movably installed on the housing, the clutch connecting piece can connect or separate the other end of the diaphragm with the outer ring of the coupling bearing, and the clutch driving device drives the clutch connecting piece to move.

[0005] As a further improvement of the present invention, the diaphragm is in a ring-shaped structure, the inner ring end of the diaphragm is fixedly connected to the main shaft, the outer ring end of the diaphragm is opposite to the axial end face of the clutch bearing, and the diaphragm is fixedly connected to one end of the inner ring of the clutch bearing by a connecting piece, and there is a set gap between the diaphragm and the outer ring of the clutch bearing, the diaphragm can be elastically deformed along its radial direction, and the clutch connecting piece can force the diaphragm to deform and be fixedly connected to the end face of one end of the outer ring of the clutch bearing.

[0006] As a further improvement of the present invention, the clutch connecting piece can be installed in the outer shell so as to slide along the axial direction of the main shaft, and the end of the clutch connecting piece can be tightly pressed against the surface of one end of the diaphragm facing away from the outer ring of the clutch bearing, so that the diaphragm is tightly fitted with the end surface of one end of the outer ring of the clutch bearing, and the clutch driving device drives the clutch connecting piece to slide.

[0007] As a further improvement of the present invention, a piston groove is provided on the outer shell, a piston is provided in the piston groove in a dynamic sealing manner, an air inlet connected to the external air path is provided at the bottom of the piston groove, and the end of the piston can extend out of the piston groove and tightly abut against the surface of the diaphragm.

[0008] As a further improvement of the present invention, a radial outer convex ring is fixedly provided on the outer circumferential side of the main shaft, and one end of the inner ring of the diaphragm is in contact with an axial end surface of the radial outer convex ring and is fixedly connected via a connecting piece.

[0009] As a further improvement of the present invention, the radial outer convex ring includes an outer ring, a building block and a pressure ring. The outer ring is sleeved on the outside of the main shaft circumference, the inner side of the outer ring is a conical surface with an inner diameter at one end smaller than the inner diameter at the other end, the building block is a conical sleeve-shaped structure with an outer diameter at one end smaller than the outer diameter at the other end, the building block is tightly inserted in the gap between the outer ring and the main shaft, the pressure ring is fixedly installed on the outer ring, the surface of one end of the pressure ring is tightly against the other end surface of the building block, and one end of the inner ring of the diaphragm is fixedly installed on the surface of one end of the outer ring.

[0010] As a further improvement of the present invention, the diaphragm is an annular spring steel sheet, on which a plurality of hollow structures are evenly spaced, and the spring steel sheet is also provided with a plurality of mounting holes for connecting with the inner ring of the clutch bearing and the radial outer convex ring on the main shaft.

[0011] As a further improvement of the present invention, the outer shell includes a mounting table, a support frame and a sleeve. The mounting table is fixedly arranged on the upper end of the support frame. A space for accommodating the motor is formed between the support frame and the mounting table. A motor connection structure for fixing the motor is also provided on the lower side of the mounting table. A spindle hole for the spindle to pass through is provided on the mounting table. The sleeve is fixedly installed on the upper end of the mounting table through a connecting piece. The sleeve is sleeved on the outer side of the coupling bearing. An annular groove is provided on the upper surface of the mounting table. A sealing cover is sealed on the opening side of the annular groove, and the lower end surface of the sleeve is tightly against the upper surface of the cover. One side of the upper end of the cover is opposite to the clutch bearing. A cooling water channel for cooling water to flow is formed between the annular groove and the cover.

[0012] As a further improvement of the present invention, the output flange covers the surface of one end of the main shaft facing away from the motor, an air path channel extending axially is formed on the inner side of the main shaft, and a connecting hole connected to the internal air path channel is also provided on the side wall of the main shaft. Sealing rings are respectively provided at both axial ends of the main shaft hole of the mounting table, and the sealing ring is dynamically sealed with the main shaft. An air supply channel connected to the section of the main shaft hole located between the two sealing rings is provided on the mounting table, and the connecting hole on the main shaft is located exactly between the two sealing rings. A center hole opposite to the air path channel on the main shaft is formed in the center of the output flange.

[0013] As a further improvement of the present invention, a radial groove located between two sealing rings is formed on the inner surface of the spindle hole on the mounting table, and the air supply channel on the mounting table is connected to the radial groove.

[0014] The beneficial effects of the present invention are as follows: the present invention realizes a fixed connection between the motor main shaft and the inner ring of the coupling bearing through the diaphragm, thereby realizing power output to the output flange connected to the inner ring of the coupling, and further realizes a stopping connection between the inner ring and the outer ring of the bearing through deformation of the diaphragm and a stopping connection with the outer ring of the coupling bearing, thereby realizing synchronous braking of the motor main shaft and the output flange, avoiding damage to the main shaft due to huge torque generated by the inertia force caused by braking of the output flange, improving the braking efficiency, protecting the motor main shaft, and helping to extend the service life of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structural principle of the present invention;

[0016] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0017] Figure 3 It is a front view of the diaphragm of the present invention;

[0018] Figure 4 It is a right side view of the diaphragm of the present invention. DETAILED DESCRIPTION

[0019] Embodiment: An integrated diaphragm 3 brake coupling comprises a housing, a main shaft 1, a coupling bearing, an output flange 2, a diaphragm 3, a clutch connector and a clutch drive device, and is installed in the housing for axial stop of the main shaft 1 coaxially connected to the motor and rotatable in the circumferential direction. The coupling bearing is sleeved on the outside of the main shaft 1, the outer ring 20 of the coupling bearing is fixedly connected to the housing, the inner ring 21 of the coupling bearing is fixedly connected to the output flange 2, one end of the diaphragm 3 is fixedly connected to the main shaft 1 and the inner ring 21 of the coupling bearing, the clutch connector is movably installed on the housing, the clutch connector can connect or separate the other end of the diaphragm 3 with the outer ring of the coupling bearing, and the clutch drive device drives the clutch connector to move. The motor 4 drives the main shaft 1 to rotate, and the main shaft 1 is fixedly connected to the inner ring 21 of the coupling bearing through the diaphragm 3 to achieve synchronous rotation, and the inner ring 21 of the coupling is fixedly connected to the output flange 2, so that the motor power is output to the output flange 2. When braking, the diaphragm 3 and the outer ring 20 of the coupling bearing are fixedly positioned through the clutch connection, that is, the output flange 2 is stopped. At the same time, the diaphragm 3 also performs synchronous braking on the main shaft 1 of the motor. The main shaft 1 of the motor and the output flange 2 are always in a synchronous motion state, thereby avoiding the generation of a large torque on the main shaft 1 of the motor when the output flange 2 is braked, and avoiding damage to the main shaft 1 of the motor.

[0020] The diaphragm 3 is an annular structure, the inner ring end of the diaphragm 3 is fixedly connected to the main shaft 1, the outer ring 7 end of the diaphragm 3 is directly opposite to the end face of one axial end of the clutch bearing, and the diaphragm 3 is fixedly connected to one end of the inner ring 21 of the clutch bearing through a connecting piece, and there is a set gap between the diaphragm 3 and the outer ring of the clutch bearing. The diaphragm 3 can be elastically deformed along its radial direction, and the clutch connecting piece can force the diaphragm 3 to deform and be fixedly connected to the end face of one end of the outer ring of the clutch bearing. The diaphragm 3 can be fixedly connected to the main shaft 1 and the inner ring 21 of the clutch bearing by a connecting piece. The end of the diaphragm 3 and the outer ring of the clutch bearing remain separated when the output flange 2 is operating normally. When the output flange 2 needs to be braked, it is only necessary to make the clutch connecting piece drive the diaphragm 3 to deform and contact closely with the outer ring of the clutch bearing, so that a huge friction force is generated between the two to achieve braking. In addition to this structure, a pin that can be axially retracted and extended can be provided on the diaphragm 3, and a slot can be provided on the end face of the outer ring of the clutch bearing to achieve positioning through a plug-in structure, or the clutch connecting piece is a clamping mechanism installed on the diaphragm 3, and the outer ring of the coupling is clamped and fixed by the clamping mechanism to achieve braking. These are equivalent replacement structures that can be easily thought of by technical personnel in this field based on this patent and fall within the scope of protection of this patent.

[0021] The clutch connector can be installed in the housing so as to slide axially along the main shaft 1. The end of the clutch connector can be tightly pressed against the surface of one end of the diaphragm 3 facing away from the outer ring of the clutch bearing, so that the diaphragm 3 is tightly fitted with the end surface of one end of the outer ring of the clutch bearing, and the clutch driving device drives the clutch connector to slide. The clutch connector slides axially along the main shaft 1 to press against the diaphragm 3, thereby forcing the surface to deform and fit closely against the end surface of the outer ring of the clutch bearing to achieve braking.

[0022] The housing is provided with a piston groove 5, in which a piston 6 is provided in a dynamic seal, and an air inlet connected to an external air path is provided at the bottom of the piston groove 5, and the end of the piston 6 can extend out of the piston groove 5 and tightly abut against the surface of the diaphragm 3. The piston 6 can slide along the axial direction of the main shaft 1 by sliding in the piston groove 5, forcing the outer ring of the diaphragm 3 to deform. The structure is simple and does not occupy space.

[0023] A radial outer convex ring is fixedly arranged on the outer circumference of the main shaft 1, and one end of the inner ring 21 of the diaphragm 3 is in contact with the end face of one axial end of the radial outer convex ring and is fixedly connected through a connector. The end face of the radial outer convex ring on the main shaft 1 and the diaphragm 3 can be fixedly connected through a connector. The structure is simple and does not occupy space. In addition, the inner ring of the diaphragm 3 can also be fixedly sleeved on the outer circumference of the main shaft 1 through a key structure to realize the fixed connection between the diaphragm 3 and the main shaft 1.

[0024] The radial outer convex ring includes an outer ring 7, a building block 8 and a pressure ring 9. The outer ring 7 is sleeved on the outer side of the circumference of the main shaft 1. The inner side of the outer ring 7 is a conical surface with an inner diameter of one end smaller than the inner diameter of the other end. The building block 8 is a conical sleeve structure with an outer diameter of one end smaller than the outer diameter of the other end. The building block 8 is tightly inserted in the gap between the outer ring 7 and the main shaft 1. The pressure ring 9 is fixedly installed on the outer ring 7. The surface of one end of the pressure ring 9 is tightly against the other end surface of the building block 8. One end of the inner ring 21 of the diaphragm 3 is fixedly installed on the surface of one end of the outer ring 7. The cut block is tightly inserted between the outer ring 7 and the main shaft 1, and the gap between the main shaft 1 and the outer ring 7 is expanded, thereby achieving the clamping of the main shaft 1, and achieving the fixed connection effect of the outer ring 7 and the main shaft 1. This structure facilitates the installation and disassembly of the main shaft 1. In addition, the connection between the main shaft 1 and the radial outer convex ring can also be achieved through a key structure or an integrally formed structure.

[0025] The diaphragm 3 is an annular spring steel sheet, on which a plurality of hollow structures 10 are evenly spaced, and the spring steel sheet is also provided with a plurality of mounting holes 11 for connecting with the inner ring 21 of the clutch bearing and the radial outer convex ring on the main shaft 1. The spring steel sheet itself has high strength, good toughness, no damage, and high braking performance.

[0026] The housing includes a mounting table 12, a support frame 13 and a sleeve 14. The mounting table 12 is fixedly arranged on the upper end of the support frame 13. A space for accommodating the motor is formed between the support frame 13 and the mounting table 12. A motor connection structure for fixing and installing the motor is also provided on the lower side of the mounting table 12. A spindle 1 hole for the spindle 1 to pass through is provided on the mounting table 12. The sleeve 14 is fixedly installed on the upper end of the mounting table 12 through a connecting piece. The sleeve 14 is sleeved on the outer side of the coupling bearing. An annular groove is provided on the upper side surface of the mounting table 12. A sealing cover is inserted and sealed on the opening side of the annular groove. The lower end surface of the sleeve 14 is tightly against the upper side surface of the cover. One side of the upper end of the cover is directly opposite to the clutch bearing. A cooling water channel 15 for cooling water to flow is formed between the annular groove and the cover. By designing the housing as a split structure, it is easy to process and manufacture, and easy to assemble with other parts. Cooling water is passed through the cooling water channel 15, which can cool the coupling bearing to prevent the heat generated during braking from affecting its performance.

[0027] The output flange 2 covers the surface of the end of the spindle 1 facing away from the motor, and an air passage 16 extending in the axial direction is formed inside the spindle 1. A connecting hole connected to the internal air passage 16 is also formed on the side wall of the spindle 1. Sealing rings 17 are respectively provided at both ends of the axial direction of the spindle 1 hole of the mounting table 12. The sealing ring 17 is dynamically sealed with the spindle 1. An air supply passage 18 connected to the spindle 1 hole located between the two sealing rings 17 is provided on the mounting table 12, and the connecting hole on the spindle 1 is located exactly between the two sealing rings 17. A center hole is formed in the center of the output flange 2 that is directly opposite to the air passage 16 on the spindle 1. During processing, the external negative pressure gas enters the inside of the spindle 1 through the air supply passage 18 of the mounting table 12, and is finally supplied to the device installed on the output flange 2 through the center of the output flange 2. The high-speed rotation of the output flange 2 and the spindle 1 will not cause the air pipe to be entangled.

[0028] A radial groove 19 located between two sealing rings 17 is formed on the inner surface of the main shaft 1 hole on the mounting table 12 , and the air supply channel 18 on the mounting table 12 is connected to the radial groove 19 .

Claims

1. An integrated diaphragm brake coupling, comprising a housing, a main shaft (1), a coupling bearing, an output flange (2), a diaphragm (3), a clutch connector and a clutch drive device, wherein the main shaft coaxially connected to the motor is axially stopped and rotatable in the circumferential direction and is installed in the housing, the coupling bearing is sleeved on the outside of the main shaft, the outer ring (20) of the coupling bearing is fixedly connected to the housing, the inner ring (21) of the coupling bearing is fixedly connected to the output flange, one end of the diaphragm is fixedly connected to the main shaft and the inner ring of the coupling bearing, the clutch connector is movably installed on the housing, the clutch connector can connect or separate the other end of the diaphragm with the outer ring of the coupling bearing, and the clutch drive device drives the clutch connector to move, the diaphragm is in a ring-shaped structure, the inner ring end of the diaphragm is fixedly connected to the main shaft, the outer ring end of the diaphragm is opposite to the end face of one axial end of the clutch bearing, and the diaphragm is connected to the clutch shaft One end of the bearing inner ring is fixedly connected by a connecting piece, and a set gap is present between the diaphragm and the outer ring of the clutch bearing. The diaphragm can be elastically deformed in its radial direction, and the clutch connecting piece can force the diaphragm to deform and be fixedly connected to the end face of one end of the outer ring of the clutch bearing. A radial outer convex ring is fixedly provided on the outer side of the main shaft circumference, and one end of the diaphragm inner ring is in contact with the axial end face of the radial outer convex ring and is fixedly connected by a connecting piece. The radial outer convex ring comprises an outer ring (7), a building block (8) and a pressure ring (9). The outer ring is sleeved on the outer side of the main shaft circumference, and the inner side of the outer ring is a conical surface with an inner diameter of one end smaller than the inner diameter of the other end. The building block is a conical sleeve-shaped structure with an outer diameter of one end smaller than the outer diameter of the other end. The building block is tightly inserted in the gap between the outer ring and the main shaft, and the pressure ring is fixedly installed on the outer ring, and the surface of one end of the pressure ring is tightly against the other end face of the building block. One end of the diaphragm inner ring is fixedly installed on the surface of one end of the outer ring.

2. The integrated diaphragm brake coupling according to claim 1, characterized in that: The clutch connector can be installed in the housing so as to slide along the axial direction of the main shaft. The end of the clutch connector can be tightly pressed against the surface of one end of the diaphragm facing away from the outer ring of the clutch bearing, so that the diaphragm is tightly fitted with the end surface of one end of the outer ring of the clutch bearing, and the clutch drive device drives the clutch connector to slide.

3. The integrated diaphragm brake coupling according to claim 2, characterized in that: The outer shell is provided with a piston groove (5), in which a piston (6) is dynamically sealed, and an air inlet connected to an external air path is provided at the bottom of the piston groove, and the end of the piston can extend out of the piston groove and tightly abut against the surface of the diaphragm.

4. The integrated diaphragm brake coupling according to claim 1, characterized in that: The diaphragm is an annular spring steel sheet, on which a plurality of hollow structures (10) are evenly spaced, and the spring steel sheet is also provided with a plurality of mounting holes (11) for connecting with the inner ring of the clutch bearing and the radial outer convex ring on the main shaft.

5. The integrated diaphragm brake coupling according to claim 1, characterized in that: The housing comprises a mounting table (12), a support frame (13) and a shaft sleeve (14); the mounting table is fixedly arranged at the upper end of the support frame; a space for accommodating the motor is formed between the support frame and the mounting table; a motor connection structure for fixing and installing the motor is also provided at the lower side of the mounting table; a main shaft hole for the main shaft to pass through is provided on the mounting table; the shaft sleeve is fixedly installed at the upper end of the mounting table through a connecting piece; the shaft sleeve is sleeved on the outer side of the coupling bearing; an annular groove is provided on the upper surface of the mounting table; a sealing cover is sealed and inserted on the opening side of the annular groove; the lower end surface of the shaft sleeve is tightly abutted against the upper surface of the sealing cover; one side of the upper end of the sealing cover is directly opposite to the clutch bearing; a cooling water channel (15) for cooling water to flow is formed between the annular groove and the sealing cover.

6. The integrated diaphragm brake coupling according to claim 5, characterized in that: The output flange covers the surface of the end of the main shaft facing away from the motor, an air path (16) extending in the axial direction is formed inside the main shaft, and a connecting hole connected to the internal air path is also formed on the side wall of the main shaft, and sealing rings (17) are respectively provided at the axial ends of the main shaft hole of the mounting table, and the sealing ring is dynamically sealed with the main shaft, and an air supply channel (18) connected to the section of the main shaft hole located between the two sealing rings is provided on the mounting table, and the connecting hole on the main shaft is located exactly between the two sealing rings, and a center hole directly facing the air path on the main shaft is formed at the center of the output flange.

7. The integrated diaphragm brake coupling according to claim 6, characterized in that: A radial groove (19) located between two sealing rings is formed on the inner surface of the main shaft hole on the mounting table, and the air supply channel on the mounting table is connected to the radial groove.

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