TWM620082U - Half-coupling structure - Google Patents

Abstract

This creation discloses a half-coupling structure, which is fixed on a mandrel and connected with the other half-coupling. It includes: a shaft body with a cylindrical part, a rigid part and a flexible part; the cylindrical part There is a shaft hole penetrating both ends of the barrel portion for connecting the mandrel; the rigid portion is provided on the barrel portion and has a plurality of pawls; the flexible portion is provided on the barrel portion and is spaced apart from the rigid portion by a predetermined distance Distance, so that there is a channel between the rigid part and the flexible part; a sleeve body with a set of holes; the sleeve body is sleeved on the cylindrical part of the shaft; and a plurality of tightening members are connected to the shaft The flexible part of the body and the sleeve body drive the sleeve body to press against the cylinder part. This can reduce the degree of axis deviation caused by the axial deformation during the tightening, improve the stability of the overall structure and prevent the generation of abnormal noise during the rotation process.

Description

Half coupling structure

This creation is related to couplings, especially a half-coupling structure.

Press, the coupling is a kind of mechanical element used to connect the driving shaft and the transmission shaft in different mechanisms, so that they can rotate together and transmit motion and torque. A coupling usually has two half couplings, which are respectively fixed at one end of the two shafts, and then the two half couplings are connected through a specific connecting piece, so that the two shafts can be connected to each other. According to different half coupling structure and connecting piece structure, it can be divided into different types of couplings.

Figures 6 and 7 show a half coupling structure of a conventional coupling, which has a base 50 and a ring 60. Wherein, the seat body 50 includes a shaft hole 51, a plurality of claws 52, and a cone 53. The shaft hole 51 penetrates the opposite sides of the seat body 50, and the claws 52 extend and protrude from the seat body. On one side of 50, the tapered tube 53 extends from the other side of the seat body 50, the center of which is penetrated by the shaft hole 51 and there are a plurality of pivot holes 54 arranged around it in a penetrating state. The seat body 50; the ring body 60 has a tapered hole 61 for the tapered tube 53 of the seat body 50 to be embedded and sleeved, and the ring body 60 is provided with a plurality of fixing holes 62 arranged around the tapered hole 61, And correspond to the axial positions of the pivot holes 54 of the seat body 50; during the process of mounting on the shaft center, the seat body 50 and the ring body 60 are fixed to each other by a plurality of screws 70, the The screws 70 can penetrate the pivot holes 54 and be screwed to the fixing holes 62. Thereby, the ring body 60 will press the tapered tube 53 to slightly deform the shaft hole 51 of the tapered tube 53 in the radial direction, and the shaft center can be clamped.

However, during the installation process of the aforementioned conventional half-coupling structure, the seat body 50 and the ring body 60 are tightly connected by the screws 70, and a radial direction is generated at the shaft hole 51 of the tapered cylinder 53. At the same time of deformation, the base body 50 will also produce corresponding axial deformation under the continuous action of the torsion force of the screws 70, causing the axis of the shaft hole 51 to shift, and the claws 52 will also be affected and deformed. As a result, it cannot be tightly joined when connecting with the other half of the coupling, causing frictional noise during the rotation process, and even damage to the coupling.

The main purpose of this creation is to provide a half-coupling structure, which can reduce the degree of axis deviation caused by axial deformation during compression, improve the stability of the overall structure and prevent abnormal noise during rotation.

In order to achieve the above-mentioned creative purpose, this creation discloses a half-coupling structure, which is fixed on a mandrel and connected with the other half of the coupling. Sex part; the barrel portion has a shaft hole penetrating both ends of the barrel portion for connecting the mandrel; the rigid portion is provided in the barrel portion, has a plurality of pawls; the flexible portion is provided in the barrel portion, and The rigid part is separated by a predetermined distance so that there is a channel between the rigid part and the flexible part; a sleeve body having a set of holes; the sleeve body is sleeved on the cylindrical portion of the shaft; The tightening piece connects the flexible part of the shaft body and the sleeve body, and drives the sleeve body to press against the cylinder part.

In one embodiment, the rigid part is further provided with a plurality of through holes surrounding the shaft hole; the flexible part is further provided with a plurality of pivot holes, respectively aligned with the through holes; the sleeve body is further provided with A plurality of locking holes surround the sleeve hole; the pressing members respectively pass through the pivot holes to be locked in the locking holes.

In one embodiment, the apertures of the through holes are larger than the apertures of the pivot holes and the locking holes; the pressing members each have a head, and the outer diameter of the head is smaller than the through holes The hole diameter is larger than the hole diameter of the pivot holes.

In one embodiment, the channel further has a bottom surface located on the outer side surface of the barrel portion, and connects the rigid portion and the flexible portion; the bottom surface is further provided with a plurality of grooves, the grooves and the through The inner walls of the holes are connected, so that the heads of the pressing parts can penetrate the through holes and the groove and abut against an end surface of the flexible part.

In one embodiment, the outer surface of the barrel portion has a slope, and the outer diameter of the slope gradually decreases inward from one end thereof; the inner surface of the sleeve hole further has another slope relative to the slope of the barrel portion .

In one embodiment, the inclined surface of the sleeve hole and the inclined surface of the barrel portion are in a complementary state, so that the sleeve body can tightly fit the barrel portion and abut against the barrel portion.

In one embodiment, the pawls extend from an end surface of the rigid part, and the width of the inner edge is smaller than the width of the outer edge.

In an embodiment, there are a plurality of first back holes provided in the rigid part; a plurality of second back holes are provided in the flexible part; and the second back holes correspond to the axial position of the first back holes , Used to carry out the retraction operation of the coupling.

In accordance with the purpose and effect of this creation, the following is a detailed description of the preferred embodiments with the drawings.

10: Shaft

11: Tube

12: Rigid part

13: Flexible part

14: Groove

20: set body

21: set hole

22: Locking hole

30: Compression

31: head

32: Pivot

50: seat body

51: Shaft hole

52: Claw

53: Cone

54: Pivot hole

60: ring body

61: tapered hole

62: fixed hole

70: Screw

100: external axis

111: Shaft hole

112: Slope

121: Claw

122: Through hole

123: The first back hole

124: Containment Slot

132: pivot hole

133: Second Back Hole

141: Bottom

142: Groove

212: Slope

Figure 1 is a perspective view of a preferred embodiment of this creation.

Figure 2 is an exploded view of the preferred embodiment of this creation.

Figure 3 is a side view of the shaft in the preferred embodiment of this creation.

Figure 4 is a cross-sectional view taken along line 4-4 in Figure 3.

Figure 5 is a cross-sectional view of a preferred embodiment of this creation, showing the status of this creation installed on an external axis.

Figure 6 is an exploded perspective view of a conventional coupling.

Figure 7 is a cross-sectional view of the conventional coupling.

Please refer to FIGS. 1 to 2, a preferred embodiment of this creation discloses a half coupling structure, which includes a shaft body 10, a sleeve body 20 and a plurality of pressing members 30. The shaft 10 is an integrally formed element, and includes a cylindrical portion 11, a rigid portion 12, and a flexible portion 13. The cylindrical portion 11 is a hollow cylindrical member with a shaft hole 111 penetrating both ends of the cylindrical portion 11, and the shaft hole 111 is used for piercing a mandrel; The outer diameter gradually shrinks from one end to the inside. The rigid portion 12 is located at one end of the barrel portion 11, and the flexible portion 13 is located between the rigid portion 12 and the inclined surface 112. The flexible portion 13 and the rigid portion 12 are separated by a predetermined distance, so that a channel 14 is formed therebetween. The rigid portion 12 is generally annular, and has a plurality of pawls 121, a plurality of through holes 122 and a plurality of first withdrawal holes 123. The pawls 121 extend and protrude from an end surface of the rigid portion 12 and are arranged around the shaft hole 111. The pawls 121 have an irregular shape, the width of the inner edge is smaller than the width of the outer edge, and a plurality of accommodating grooves 124 are formed between the pawls 121, the pawls 121 and the accommodating The groove 124 is used for pivotally connecting the pawl of the other half of the coupling with the connecting piece (not shown). Such The through holes 122 are provided on the bottom surfaces of the accommodating grooves 124 of the rigid portion 12 and arranged around the shaft hole 111, and penetrate to the channel 14. The first retreat holes 123 are arranged between the through holes 122 and also penetrate to the channel 14, and their diameters are smaller than the through holes 122. The flexible portion 13 is disposed outside the cylindrical portion 11 and has an annular shape, and the predetermined distance is maintained by the channel 14 and the rigid portion 12. The flexible portion 13 has a plurality of pivot holes 132 and a plurality of second withdrawal holes 133. The pivot holes 132 are arranged around the barrel 11 and penetrate the channel 14. The positions of the pivot holes 132 correspond to the axial positions of the through holes 122 of the rigid portion 12, and the hole diameter of the pivot holes 132 is smaller than the hole diameter of the through holes 122. The second retreat holes 133 are provided between the pivot holes 132 and also penetrate to the channel 14. The position of the second retreat holes 133 corresponds to the axial position of the first retreat holes 123, and The apertures of the second retreat holes 133 are smaller than the apertures of the first retreat holes 123, and are used for a screw (not shown) to be locked in to retract the two coupling halves.

The sleeve body 20 is a ring structure with a set of holes 21 and a plurality of locking holes 22. The sleeve hole 21 is provided in the center of the sleeve body 20, is concentric with the sleeve body 20, and penetrates the sleeve body 20 to be inserted into the cylindrical portion 11 of the shaft body 10. Wherein, the inner surface of the sleeve hole 21 has an inclined surface 212, and is complementary to the inclined surface 112 of the barrel portion 11, so that the sleeve body 20 can fit tightly when the sleeve body 20 is sleeved with the barrel portion 11 The barrel 11 abuts against the barrel 11. The locking holes 22 are provided in the sleeve body 20, are arranged around the sleeve hole 21 and penetrate the sleeve body 20. The positions of the locking holes 22 correspond to the axial positions of the through holes 122 of the rigid portion 12 and the pivot holes 132 of the flexible portion 13.

The pressing members 30 respectively have a head 31 and a pivoting portion 32. The outer diameter of the head 31 is smaller than the through holes 122 and larger than the pivoting holes 132, and the outer diameter of the pivoting portion 32 is smaller than The head 31 allows the pressing members 30 to be pivoted into the through holes 122 of the rigid portion 12 and pass through the pivot holes 132 of the flexible portion 13 to be locked to the sleeve body 20 The locking holes 22 are used to press the shaft body 10 against the sleeve body 20. The thickness of the head 31 is also smaller than that of the through holes 122, so that the head 31 of the pressing member 30 is pivoted to the channel 14 and is embedded in the through holes 122. In this embodiment, the tightening members 30 are bolts.

Please refer to Figures 3 and 4, the channel 14 has a bottom surface 141, the bottom surface 141 is located on the outer side of the barrel portion 11 connecting the rigid portion 12 and the flexible portion 13, and the bottom surface 141 is connected to the The positions of the through holes 122 are provided with a plurality of grooves 142 corresponding to the through holes 122. The thickness of the grooves 142 to the shaft hole 111 is equal to the thickness of the through holes 122 to the shaft hole 111, and is smaller than the thickness of the bottom surface 141 to the shaft hole 111, so that the grooves 142 are connected to the shaft hole 111. The inner walls of the holes 122 are in a connected state, whereby the heads 31 of the pressing pieces 30 can abut against one of the flexible parts 13 after the pressing pieces 30 penetrate the through holes 122 and enter the channel 14 The end surface does not contact the rigid portion 12.

Please refer to Fig. 5. When the user wants to install the half coupling structure of this creation on an outer shaft center 100, the user first sets the sleeve body 20 on the outer shaft center 100, and then the shaft body 10 It is sleeved on the outer shaft center 100, and the barrel portion 11 of the shaft body 10 is further embedded in the sleeve hole 21 of the sleeve body 20. At this time, the shaft hole 111 of the cylindrical portion 11 is penetrated by the outer shaft 100, and the cylindrical portion 11 is sleeved on the sleeve body 20. Next, rotate the sleeve body 20 so that the positions of the locking holes 22 are aligned with the through holes 122 of the rigid portion 12 and the pivot holes 132 of the flexible portion 13, using the axial positions of the three to form The concentric state allows the pressing members 30 to be pressed. Next, use a tightening tool (not shown) such as a torque wrench to pivot the tightening member 30 into the through holes 122 of the rigid portion 12, and connect the pivot holes 132 of the flexible portion 13 And the locking holes 22 of the sleeve body 20 until the head 31 of the pressing member 30 abuts against an end surface of the flexible portion 13. At this time, as the torsion force continues to increase, the sleeve hole 21 of the sleeve body 20 will be tightly pressed against the barrel 11, so that the barrel 11 is slightly deformed to clamp the outer shaft 100. Is held in one of these urgent 30 When continued torsion is applied, the flexible portion 13 will also be compressed and produce some axial deformation; at this time, since the channel 40 is provided between the rigid portion 12 and the flexible portion 13 to maintain the predetermined distance, Moreover, the pressing member 30 does not act on the rigid part 12, so the rigid part 12 will not be deformed due to pressing, and the axis deviation of the shaft body 10 is relatively reduced; the pawls 121 and the accommodating grooves 124 can also be maintained without deformation, so that the relative positions of the pawls 121 and the accommodating grooves 124 remain unchanged when they are connected with the other half of the coupling, so as to ensure that they can be tightly joined during connection. Thereby, when the flexible portion 13 is deformed while the rigid portion 12 remains undeformed, the degree of axis deviation caused by the deformation of the overall structure can be reduced, the stability of the overall structure during connection can be improved, and rotation can be prevented. The abnormal noise caused by the deformation of the connection state or the deviation of the axis during the process.

In summary, the semi-coupling structure of the present invention uses the channel 14 to be arranged between the rigid part 12 and the flexible part 13, so that the rigid part 12 and the flexible part 13 are maintained at a predetermined distance. As a result, when the urging members 30 squeeze the shaft body 10 and the sleeve body 20 to be fixed to the outer shaft center, the flexible portion 13 is deformed while the rigid portion 12 can remain undeformed, reducing deformation due to the overall structure The degree of deviation of the shaft center improves the stability of the overall structure during connection and prevents abnormal noise during the rotation process.

The above are the preferred embodiments and design drawings of this creation, but the preferred embodiments and design drawings are only examples and are not used to limit the scope of rights of this creation technique. Any equivalent technical means or the following The implementation of the scope of rights covered by the content of the "Scope of Patent Application" does not depart from the scope of this creation and is the scope of the applicant's rights.

10: Shaft

12: Rigid part

13: Flexible part

14: Groove

20: set body

111: Shaft hole

121: Claw

122: Through hole

123: The first back hole

124: Containment Slot

132: pivot hole

133: Second Back Hole

Claims (8)

A half coupling structure for being fixed on a spindle and connected with the other half coupling, comprising: a shaft body with a cylinder part, a rigid part and a flexible part; the cylinder part has a shaft hole Pass through the two ends of the barrel portion for connecting the mandrel; the rigid portion is provided on the barrel portion and has a plurality of pawls; the flexible portion is provided on the barrel portion and is spaced a predetermined distance from the rigid portion so that There is a channel between the rigid part and the flexible part; a sleeve with a set of holes; the sleeve is sleeved on the cylindrical portion of the shaft; and a plurality of pressing parts are connected to the flexible shaft The sex part and the sleeve body drive the sleeve body to press against the barrel part. The half-coupling structure according to claim 1, wherein the rigid part is further provided with a plurality of through holes surrounding the shaft hole; the flexible part is further provided with a plurality of pivot holes, respectively aligned with the through holes Hole; The sleeve body is further provided with a plurality of locking holes around the sleeve hole; the pressing pieces respectively pass through the pivot holes to be locked in the locking holes. The half-coupling structure according to claim 2, wherein the apertures of the through holes are larger than the apertures of the pivot holes and the locking holes; each of the pressing parts has a head, and the heads The outer diameter is smaller than the aperture of the through holes and larger than the aperture of the pivot holes. The half-coupling structure according to claim 3, wherein the groove has a bottom surface located on the outer side of the barrel and connects the rigid part and the flexible part; the bottom surface is further provided with a plurality of grooves, The grooves are connected with the inner walls of the through holes, so that the heads of the pressing parts can penetrate the through holes and the groove and abut against an end surface of the flexible part. The half-coupling structure according to claim 1, wherein the outer surface of the barrel part has a slope, and the outer diameter of the slope gradually decreases from one end to the inside; the inner surface of the sleeve hole further has another slope The slope relative to the barrel. The half-coupling structure according to claim 5, wherein the inclined surface of the sleeve hole and the inclined surface of the barrel portion are in a complementary state, so that the sleeve body can tightly fit the barrel portion and abut against the barrel portion. The half-coupling structure according to claim 1, wherein the pawls extend to protrude from an end surface of the rigid part, and the width of the inner edge is smaller than the width of the outer edge. The half-coupling structure according to claim 1, wherein a plurality of first back holes are provided in the rigid part; a plurality of second back holes are provided in the flexible part; and the second back holes correspond to the The axial position of the first retreat hole is used for the retraction operation of the coupling.

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