CN116146614A

CN116146614A - Assembled coupling

Info

Publication number: CN116146614A
Application number: CN202310424141.5A
Authority: CN
Inventors: 王伟
Original assignee: Shenyang Contor Machine & Electric Equipment Co ltd
Current assignee: Shenyang Contor Machine & Electric Equipment Co ltd
Priority date: 2023-04-20
Filing date: 2023-04-20
Publication date: 2023-05-23
Anticipated expiration: 2043-04-20
Also published as: CN116146614B

Abstract

The invention relates to the technical field of couplings, and discloses an assembled coupling which comprises a first connector and a second connector, wherein the first connector and the second connector are assembled through a bolt connection pair to form coaxial transmission connection; the one end that the second connector was kept away from to first connector is equipped with the driving shaft, and the center of second connector is provided with the driven shaft through bearing rotation connection, and sliding fit is provided with the drive ring in the second connector, and the drive ring is contactless with the driven shaft when sliding to one side of keeping away from first connector in the second connector, when the drive ring slides to one side of being close to the first connector in the second connector, drive ring and driven shaft circumference transmission fit. The driving ring can be matched with stable output to enable the driven shaft to synchronously rotate, and the driving ring can be separated from the matched with the driven shaft when the output end of the driven shaft is blocked, so that the risk of torsion damage is reduced, and the service life of the whole device can be prolonged.

Description

Assembled coupling

Technical Field

The invention relates to the technical field of couplings, in particular to an assembled coupling.

Background

The coupler is a device for connecting two shafts or connecting the shafts and a rotary member, and rotating together in the process of transmitting motion and power, and not disengaging under normal conditions. The coupling is a common transmission structure for shafts, and can also be used as a safety device for preventing the connected parts from bearing excessive load, thereby playing the role of overload protection.

Chinese patent publication No.: CN105422652a, which provides a coupling convenient to disassemble, comprising a left half coupling, a right half coupling, a fixing bolt, a left shaft sleeve and a right shaft sleeve; the left half coupling and the right half coupling are fixedly connected through a fixing bolt; the input shaft is connected with the left half coupling through the left shaft sleeve, and the output shaft is connected with the right half coupling through the right shaft sleeve; the left shaft sleeve, the left half coupling, the right half coupling and the right shaft sleeve are respectively provided with a pin through hole, and a fixing pin is arranged in each pin through hole.

If the scheme is used as the transmission of a boring cutter, if a clamping problem occurs at the cutter, the whole coupler can cause damage of a motor and torsion damage of the coupler and the cutter because of the problem of rotation transmission blockage.

Accordingly, there is a need to provide a fabricated coupling.

Disclosure of Invention

The present invention is directed to a fabricated coupling, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the assembled coupler comprises a first connector and a second connector, wherein the first connector and the second connector are assembled through a bolt connection pair to form coaxial transmission connection; the one end that the second connector was kept away from to first connector is equipped with the driving shaft, and the center of second connector is provided with the driven shaft through bearing rotation connection, and sliding fit is provided with the drive ring in the second connector, and the drive ring is contactless with the driven shaft when sliding to one side of keeping away from first connector in the second connector, when the drive ring slides to one side of being close to the first connector in the second connector, drive ring and driven shaft circumference transmission fit.

As a further scheme of the invention: the second connector is internally provided with a sliding groove in an embedded mode at the periphery of the driven shaft, the transmission ring is connected in the sliding groove in a sliding fit mode, a plurality of groups of edge grooves are embedded in the outer side of the sliding groove, the sliding groove and the edge grooves are all arranged in an extending mode along the axial direction of the driven shaft, the inner wall of the transmission ring is correspondingly matched with the periphery of the driven shaft, the periphery of the transmission ring is correspondingly provided with side edges with the edge grooves, and the side edges are in sliding fit with the edge grooves.

As a further scheme of the invention: the second connector is embedded with a pressing rod which is opposite to the transmission ring and used for driving the transmission ring to move to one side of the first connector in a sliding manner.

As a further scheme of the invention: the slope grooves are embedded in one group of side edges, the pressing rods are embedded in the outer side of the second connector in a sliding mode, and the tail ends of the pressing rods are movably propped against the slope grooves.

As a further scheme of the invention: the utility model discloses a driven shaft, including first connector, driven shaft, first connector, second connector, driven shaft, first connector, second connector, the embedding of one side of being close to the first connector is provided with the mounting groove, the embedding of mounting groove is provided with the multiunit first spacing groove, the driven shaft is close to the one end and mounting groove size adaptation of first connector, the peripheral activity embedding of driven shaft is provided with the spacing subassembly with the corresponding adaptation of first spacing groove, be equipped with spacing driving medium in the first spacing groove, spacing driving medium sets up with the driving ring relatively.

As a further scheme of the invention: the driven shaft is overlapped with the axes of the first connecting body, the second connecting body and the driving shaft; the transmission ring is arranged in superposition with the axis of the driven shaft.

As a further scheme of the invention: the first connector is provided with a plurality of groups of first assembly holes in a penetrating mode at the periphery of the driving shaft, the second connector is provided with a plurality of groups of second assembly holes opposite to the first assembly holes at the periphery of the driven shaft, and the first connector and the second connector are assembled and connected after the bolt connection pair passes through the first assembly holes and the second assembly holes.

As a further scheme of the invention: the limiting component comprises blind holes embedded in the surface of the driven shaft, the blind holes are distributed along the periphery of the driven shaft in an annular array, limiting blocks are arranged in the blind holes through spring connection, the limiting blocks are arranged in sliding fit with the blind holes, the limiting blocks are correspondingly matched with the first limiting grooves, a gap is formed in one side, away from the first connecting body, of each limiting block, and the upper surfaces of the limiting blocks are flush with the surface of the driven shaft under the action of springs.

As a further scheme of the invention: the utility model discloses a limit transmission piece, including the first connector surface, the second connector surface runs through and is provided with the jack, the jack with the arris groove is linked together, spacing driving medium includes the sliding plate of sliding fit in first connector, the sliding plate is located one side of first spacing groove, and the one end that the sliding plate is close to first spacing groove rotates to be connected and is provided with the rotor, the sliding plate is kept away from the terminal fixed inserted bar that is provided with of first spacing groove, the inserted bar corresponds the setting with the jack.

As a further scheme of the invention: the rotating block is arranged on the upper side of the end part of the sliding plate, the lower surface of the rotating block is arranged in a plane, one side, close to the first limiting groove, of the upper surface of the rotating block is arranged in a circular ring surface, and the size of the rotating block is matched with the size of the opening of the limiting block.

Compared with the prior art, the invention has the beneficial effects that: in the transmission process, the transmission ring can cooperate stable output to enable the driven shaft to synchronously rotate, and the transmission ring can be separated from the cooperation with the driven shaft when the clamping occurs at the output end of the driven shaft, so that the driven shaft and the second connector still form rotary transmission with the first connector when problems occur, the risk of torsion damage is reduced, and the service life of the whole device can be prolonged.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic structural view of a second connector according to the present invention.

Fig. 3 is a schematic structural view of the drive ring in the present invention.

Fig. 4 is an enlarged schematic view of the structure at a in fig. 3.

Fig. 5 is a cross-sectional view of a second connector according to the present invention.

Fig. 6 is an enlarged schematic view of the structure at B in fig. 5.

Fig. 7 is an enlarged schematic view of the structure at C in fig. 5.

Fig. 8 is a cross-sectional view of a first connector according to the present invention.

Fig. 9 is an enlarged schematic view of the structure at D in fig. 8.

Fig. 10 is a schematic structural view of the positioning transmission member.

In the figure: 1-first connector, 11-driving shaft, 12-first assembly hole, 13-mounting groove, 14-first limit groove, 1401-rotating groove, 15-limit transmission piece, 1501-sliding plate, 1502-rotating block, 1503-inserting rod, 2-second connector, the device comprises a driven shaft 21-2101-blind hole, a limited block 2102-2103-spring, a second assembly hole 22-23-jack, a driving ring 24-drive, a side edge 2401-2402-sloping surface groove, a 25-pressing rod, a 26-sliding groove, a 27-edge groove and a 3-bolt connecting pair.

Detailed Description

Referring to fig. 1-5, in an embodiment of the present invention, a fabricated coupling includes a first connector 1 and a second connector 2, where the outer diameters of the first connector 1 and the second connector 2 are matched, and are assembled by a bolt connection pair 3 to form a coaxial transmission connection; the driving shaft 11 is fixedly connected to one end, far away from the second connector 2, of the first connector 1, the driving shaft 11 is overlapped with the axis of the first connector 1, the center of the second connector 2 is rotatably connected with the driven shaft 21 through a bearing, and the driven shaft 21 is overlapped with the axes of the first connector 1, the second connector 2 and the driving shaft 11; the bolting pair 3 includes, but is not limited to, bolts, nuts, washers, anti-slip collars, etc.; a driving ring 24 is arranged in the second connector 2 in a sliding fit manner, the driving ring 24 is superposed with the axis of the driven shaft 21, the driving ring 24 is not contacted with the driven shaft 21 when the driving ring 24 slides to the side far away from the first connector 1 in the second connector 2, and the driving ring 24 is in driving fit with the driven shaft 21 in the circumferential direction (the driving ring 24 and the driven shaft 21 synchronously rotate) when the driving ring 24 slides to the side close to the first connector 1 in the second connector 2, and preferably, spline fit can be adopted; the second connector 2 is slidably fitted with a pressing rod 25 which is opposite to the drive ring 24 and is used for driving the drive ring 24 to move toward the first connector 1. When the pressing rod 25 is pressed, the transmission ring 24 can be pushed to form fit with the driven shaft 21, so that the driven shaft 21 can be driven to synchronously rotate by the second connector 2 and the transmission ring 24 when the first connector 1 rotates. The pressing lever 25 can only push the transmission ring 24 to the first connecting body 1 side, and the pressing lever 25 cannot pull the transmission ring 24 to the side away from the first connecting body 1, i.e., the pressing lever 25 cannot disengage the engagement between the transmission ring 24 and the driven shaft 21. One side of the driving shaft 11 is connected with a driving structure, which may be a motor or the like, for generating a rotating motion, while one end of the driven shaft 21 may be provided with a tool holder and a tool for outputting, and through the use of the device, the device may be used for machining metal after the tool is installed, in this embodiment, an exemplary description is given of a scheme of the device applied in boring.

The periphery of the driven shaft 21 can form spline fit with the transmission ring 24 only on the side, close to the first connector 1, of the second connector 2, so that the transmission ring 24 can be out of fit with the driven shaft 21 after moving.

Therefore, as shown in fig. 1-8, the first connecting body 1 is provided with the mounting groove 13 near one side of the second connecting body 2, multiple groups of first limiting grooves 14 are embedded in the mounting groove 13, one end of the driven shaft 21 near the first connecting body 1 is in size fit with the mounting groove 13, a limiting assembly correspondingly matched with the first limiting grooves 14 is movably embedded in the periphery of the driven shaft 21, a limiting transmission member 15 is arranged in the first limiting grooves 14, when the driven shaft 21 rotates, the limiting assembly is far away from the driven shaft 21 due to centrifugal force and enters the first limiting grooves 14, at the moment, the limiting assembly enters the first limiting grooves 14 and does not push the limiting transmission member 15, when the limiting assembly is far away from the first limiting grooves 14, the limiting transmission member 15 can be pushed to move towards one side of the second connecting body 2, the limiting transmission member 15 is arranged opposite to the transmission ring 24, when the limiting transmission member 15 moves towards the transmission ring 24, the transmission ring 24 can be pushed, so that the

transmission ring

24 and 21 are matched with each other, in the transmission process, if the end of the driven shaft 21 is blocked by centrifugal force, the end of the driven shaft 21 is blocked, the limiting assembly is prevented from being blocked, and the end of the driven shaft 21 is only driven shaft 21 is prevented from being damaged, or the whole transmission member is prevented from being connected with the driven shaft 21 and the end 2 is prevented from being twisted, and the transmission member is prevented from being damaged.

As shown in fig. 1-10, a plurality of groups of first assembly holes 12 are arranged on the first connector 1 and located at the periphery of the driving shaft 11 in a penetrating manner, a plurality of groups of second assembly holes 22 opposite to the first assembly holes 12 are arranged on the second connector 2 and located at the periphery of the driven shaft 21, and the first connector 1 and the second connector 2 are assembled and connected after the bolt connection pair 3 passes through the first assembly holes 12 and the second assembly holes 22.

As shown in fig. 2-6, a sliding groove 26 is embedded in the second connecting body 2 at the periphery of the driven shaft 21, the transmission ring 24 is connected in the sliding groove 26 in a sliding fit manner, multiple groups of edge grooves 27 are embedded in the outer side of the sliding groove 26, the sliding groove 26 and the edge grooves 27 are all arranged along the axial direction of the driven shaft 21 in an extending manner, the inner wall of the transmission ring 24 is correspondingly adapted to the periphery of the driven shaft 21, a side edge 2401 is correspondingly arranged at the periphery of the transmission ring 24 and corresponds to the edge grooves 27, and the side edge 2401 is in sliding fit with the edge grooves 27. Preferably, a sloping surface groove 2402 is embedded in one group of side edges 2401, the pressing rod 25 is embedded on the outer side of the second connector 2 in a sliding manner, and the tail end of the pressing rod is movably propped against the sloping surface groove 2402. Further preferably, the pressing rod 25 has a thin straight rod structure, the middle part of the pressing rod 25 has a larger ruler diameter, and the two ends of the pressing rod have smaller ruler diameters, so that the pressing rod 25 is not separated from the second connector 2 while being in sliding fit with the second connector 2, the surface of the sloping surface groove 2402 gradually decreases from one side close to the first connector 1 to one side far from the first connector 1, and the driving ring 24 can move to one side close to the first connector 1 by pressing the pressing rod 25; while the end of the limit transmission member 15 is opposite to the side surface of the transmission ring 24, the limit transmission member 15 pushes the transmission ring 24 away from the driven shaft 21. When the first connector 1, the second connector 2, the driving shaft 11 and the driven shaft 21 rotate simultaneously, the pressing rod 25 is far away from the driving ring 24 under the action of centrifugal force, so that the driving ring 24 is not influenced to be far away from the cooperation with the driven shaft 21.

The limiting component comprises blind holes 2101 embedded in the surface of the driven shaft 21, the blind holes 2101 are distributed in an annular array along the periphery of the driven shaft 21, limiting blocks 2102 are arranged in the blind holes 2101 in a connected mode through springs 2103, the limiting blocks 2102 are arranged in a sliding fit mode with the blind holes 2101, the limiting blocks 2102 are correspondingly matched with the first limiting grooves 14, one sides, far away from the first connecting body 1, of the limiting blocks 2102 are provided with openings, the upper surfaces of the limiting blocks 2102 are flush with the surface of the driven shaft 21 due to the action of the springs 2103, and therefore limiting blocks 2102 can slide out of the blind holes 2101 and enter the first limiting grooves 14 due to centrifugal rotation.

Correspondingly, as shown in fig. 2 and fig. 8-10, the surface of the second connector 2 is provided with a jack 23 in a penetrating manner, the jack 23 is communicated with the edge groove 27, the jack 23 is opposite to the limit transmission member 15, and when the limit transmission member 15 is pushed, the tail end of the limit transmission member 15 can be inserted into the jack 23 and enter into the edge groove 27, so that the side edge 2401 is pushed, and then the transmission ring 24 is driven to slide in the sliding groove 26. The limit transmission member 15 includes a sliding plate 1501 slidably fitted in the first connector 1, the sliding plate 1501 is located at one side of the first limit groove 14, a rotating block 1502 is rotatably connected to one end of the sliding plate 1501 near the first limit groove 14, an inserting rod 1503 is fixedly disposed at the end of the sliding plate 1501 far away from the first limit groove 14, the inserting rod 1503 is disposed corresponding to the inserting hole 23, the rotating block 1502 is preferably disposed at the upper side of the end of the sliding plate 1501, the lower surface of the rotating block 1502 is disposed in a plane, one side of the upper surface of the rotating block 1502 near the first limit groove 14 is disposed in a circular ring surface, so that when the limiting block 2102 enters the first limit groove 14, the rotating block 1502 can be pushed to rotate relative to the sliding plate 1501, because the acting force is vertically upward, the horizontal component force which can be distributed to the sliding plate 1501 when the rotating block 1502 rotates is smaller, the moving amplitude of the sliding plate 1501 is smaller, when the notch of the limiting block 2102 is opposite to the rotating block 1502, the rotating block 1502 resumes rotating and is movably clamped in the notch of the limiting block 2102, the rotating groove 1401 is preferably embedded in one side of the first limiting groove 14, the rotating groove 1401 is arranged on the upper side of one end, close to the first limiting groove 14, of the sliding plate 1501, when the rotating block 1502 rotates, the rotating block 1401 can enter the rotating groove 1401, and when the limiting block 2102 is far away from the first limiting groove 14, the upper side of the notch is contacted with the arc-shaped upper surface of the rotating block 1502, and the rotating block 1502 and the sliding plate 1501 can be pushed to move towards the side of the second connector 2 synchronously.

Thus, when the first connector 1 and the second connector 2 are assembled, the first assembly hole 12 and the second assembly hole 22 are aligned, the inserting rod 1503 is aligned with the insertion hole 23, the first connector 1 and the second connector 2 are tightly attached, the pressing rod 25 is pressed, no matter where the driving ring 24 is, the driving ring 24 can slide to form a driving fit with the driven shaft 21, the tail end of the inserting rod 1503 can enter the insertion hole 23, the first connector 1 and the second connector 2 are fastened by the bolt connection pair 3, and when one end of the driving shaft 11 is input to rotate, the driving shaft 11, the first connector 1, the second connector 2 and the driven shaft 21 synchronously rotate. When the driven shaft 21 rotates, the limiting block 2102 centrifugally swings to enter the first limiting groove 14, the limiting block 2102 pushes the rotating block 1502 to rotate, then the rotating block 1502 enters the notch of the limiting block 2102, at this time, a stable transmission relationship is achieved, and the limiting block 2102 and the first limiting groove 14 are matched to further improve transmission stability. When the driven shaft 21 is blocked at one end thereof, if the driven shaft 21 cannot be driven, the centrifugal force of the blind hole 2101 is lost or reduced due to resistance, at this time, the limiting block 2102 is gradually far away from the first limiting groove 14, at this time, the upper side of the notch at the side edge of the limiting block 2102 presses the arc surface of the rotating block 1502, so that the whole limiting driving member 15 is pushed to one side of the second connecting body 2, the inserting rod 1503 can further slide in the inserting hole 23 and push the driving ring 24 to be separated from the driving fit with the driven shaft 21, thus the rotation at one side of the first connecting body 1 can only drive the second connecting body 2 to rotate, the driven shaft 21 can be connected with the second connecting body 2 in a relatively rotating manner, and the damage of twisting of the whole device or a cutter and the like caused by overlarge resistance at the end of the driven shaft 21 is avoided. The integral arrangement of the pressing rod 25, the driving ring 24 and the limiting driving piece 15 can ensure that before assembly, no matter whether the driving ring 24 and the driven shaft 21 are in a driving fit state or not, the driving ring 24 and the driven shaft 21 can be driven and assembled by pressing the pressing rod 25, and in a normal driving state, the synchronous rotation of the first connecting body 1, the second connecting body 2, the driven shaft 21 and the driving shaft 11 can lead the pressing rod 25 to be far away from the slope surface groove 2402 under the action of centrifugal force, so that the driving state of the driving ring 24 and the driven shaft 21 is not influenced; in the transmission process, the setting of the limiting block 2102 can be matched with the first limiting groove 14 to further ensure transmission stability, and the limiting transmission piece 15 can be used for enabling the acting transmission ring 24 to be separated from the matching with the driven shaft 21 when the output end of the driven shaft 21 is blocked, so that the driven shaft 21 and the second connecting body 2 still form rotary transmission with the first connecting body 1 when problems occur, and the service life of the whole device can be prolonged.

Claims

1. The assembled coupler comprises a first connector and a second connector, wherein the first connector and the second connector are assembled through a bolt connection pair to form coaxial transmission connection; the driving device is characterized in that a driving shaft is arranged at one end, far away from the second connector, of the first connector, a driven shaft is arranged at the center of the second connector in a rotating connection mode through a bearing, a driving ring is arranged in the second connector in a sliding fit mode, the driving ring is not in contact with the driven shaft when the driving ring slides to one side, far away from the first connector, of the second connector, and the driving ring is in circumferential transmission fit with the driven shaft when the driving ring slides to one side, close to the first connector, of the second connector.

2. The assembly coupling according to claim 1, wherein the second connecting body is internally provided with a sliding groove in an embedded manner at the periphery of the driven shaft, the transmission ring is connected in the sliding groove in a sliding fit manner, a plurality of groups of edge grooves are embedded in the outer side of the sliding groove, the sliding groove and the edge grooves are all arranged in an extending manner along the axial direction of the driven shaft, the inner wall of the transmission ring is correspondingly adapted to the periphery of the driven shaft, the periphery of the transmission ring is correspondingly provided with side edges which are in sliding fit with the edge grooves.

3. The assembly coupling of claim 2, wherein the second connecting body is slidably fitted with a pressing rod opposite to the driving ring for driving the driving ring to move toward the first connecting body.

4. A fabricated coupling according to claim 3, wherein a set of side edges are provided with ramp grooves, the pressing bar is slidably inserted into the outer side of the second connector, and the end portion thereof is movably abutted against the ramp grooves.

5. The assembled coupling according to claim 2, wherein a mounting groove is embedded in one side of the first connecting body, which is close to the second connecting body, a plurality of groups of first limit grooves are embedded in the mounting groove, one end of the driven shaft, which is close to the first connecting body, is matched with the size of the mounting groove, a limit assembly which is correspondingly matched with the first limit groove is embedded in the periphery of the driven shaft in a movable manner, and a limit transmission part is arranged in the first limit groove and is arranged opposite to the transmission ring.

6. The assembly type coupling according to claim 5, wherein the limiting assembly comprises blind holes embedded in the surface of the driven shaft, the blind holes are distributed in an annular array along the periphery of the driven shaft, limiting blocks are arranged in the blind holes through spring connection and are in sliding fit with the blind holes, the limiting blocks are correspondingly matched with the first limiting grooves, a notch is formed in one side, away from the first connecting body, of the limiting blocks, and the upper surface of each spring-action limiting block is flush with the surface of the driven shaft.

7. The assembly coupling according to claim 6, wherein the second connector surface is provided with a jack in a penetrating manner, the jack is communicated with the prismatic groove, the limit transmission member comprises a sliding plate which is in sliding fit with the first connector, the sliding plate is located on one side of the first limit groove, one end, close to the first limit groove, of the sliding plate is provided with a rotating block in a rotating connection manner, the tail end, far away from the first limit groove, of the sliding plate is fixedly provided with an inserting rod, and the inserting rod is correspondingly arranged with the jack.

8. The assembly coupling of claim 7, wherein the rotating block is disposed on an upper side of an end portion of the sliding plate, a lower surface of the rotating block is disposed in a plane, a side of an upper surface of the rotating block, which is close to the first limiting groove, is disposed in a circular ring, and a size of the rotating block is matched with a size of a gap of the limiting block.

9. A fabricated coupling according to any one of claims 1 to 8, wherein the driven shaft is coincident with the axes of the first connection body, the second connection body and the drive shaft; the transmission ring is arranged in superposition with the axis of the driven shaft.

10. A fabricated coupling according to any one of claims 1 to 8, wherein a plurality of groups of first assembly holes are formed in the first connecting body at the periphery of the driving shaft in a penetrating manner, a plurality of groups of second assembly holes opposite to the first assembly holes are formed in the second connecting body at the periphery of the driven shaft in a penetrating manner, and the first connecting body and the second connecting body are assembled and connected after the bolt connection pair passes through the first assembly holes and the second assembly holes.