An elastic coupling

Abstract

The invention relates to the field of couplings, and more specifically to an elastic coupling, comprising a telescopic mechanism and a connecting mechanism; the telescopic mechanism is connected to a driving shaft, the telescopic mechanism and the connecting mechanism are fixed to each other, and the connecting mechanism is installed on a driven shaft; by using the telescopic mechanism and the connecting mechanism in coordination, it is convenient to adjust the distance during transmission, and to achieve elastic connection during transmission, so that the transmission efficiency is higher; the driven shaft is rotated along with the transmission of the connecting mechanism, and the rotation of the driven shaft can drive the square rod to rotate. Since a square hole used in coordination with the square rod is provided in the middle of the driven shaft, when the driven shaft rotates, the square rod rotates, thereby achieving transmission; the locking mechanism can fix the square rod and the driven shaft after adjusting the distance between the square rod and the driven shaft, so that the connection between the square rod and the driven shaft is stable during rotation.

Description

Technical Field

[0001] The invention relates to the field of couplings, in particular to an elastic coupling. Background Art

[0002] There are many connection methods for existing elastic couplings, but the rigidity of the elastic coupling cannot keep up with the use, and the elastic components need to be replaced after a period of use; the length of the coupling is not convenient to adjust when connecting, so it is necessary to directly adjust the distance between the devices. Due to the heavy overall mass of the equipment, it is inconvenient to move; if the support is completely made of steel, the scalability of the elastic coupling will become relatively poor. Therefore, it is necessary to provide a coupling made of steel that does not require replacement of elastic components. Summary of the invention

[0003] In view of the problems in the prior art, the present invention provides an elastic coupling.

[0004] The technical solution adopted by the present invention to solve the technical problem is: an elastic coupling, comprising a telescopic mechanism and a connecting mechanism; the telescopic mechanism is connected to a driving shaft, the driving shaft is connected to an output shaft, the telescopic mechanism and the connecting mechanism are fixed, the connecting mechanism is installed on a driven shaft, a square rod is connected inside the driven shaft, a fixing plate is connected to the end of the square rod, a locking mechanism is installed on the driven shaft, and the locking mechanism is connected to the square rod; by using the telescopic mechanism and the connecting mechanism in coordination, the distance can be adjusted during transmission, and elastic connection can be achieved during transmission, so that the transmission efficiency is higher; the driven shaft rotates with the transmission of the connecting mechanism, and the driven shaft can drive the square rod to rotate by rotating, and since a square hole used in coordination with the square rod is provided in the middle of the driven shaft, when the driven shaft rotates, the square rod rotates, thereby realizing transmission; the locking mechanism can fix the square rod and the driven shaft after adjusting the distance between the square rod and the driven shaft, so that the square rod and the driven shaft are stably connected during rotation.

[0005] Preferably, the telescopic mechanism comprises a stabilizing ring fixed on the driving shaft, a stabilizing rod fixed on the stabilizing ring, a telescopic rod sleeved on the stabilizing rod, the stabilizing rod and the telescopic rod are slidably connected, a connecting block fixed on the end of the telescopic rod, the connecting block fixed on the inner wall of the arc block; the arc block and the stabilizing block on the connecting mechanism are fixed. The driving shaft can drive the stabilizing ring to rotate, and then the stabilizing ring drives the stabilizing rod to rotate synchronously. When the driving shaft or the driven shaft approaches each other, the stabilizing rod moves in the direction of the telescopic rod, and the limit plate fixed on the end of the stabilizing rod squeezes the spring at the same time, the spring is compressed inside the blind hole, and the stabilizing rod slides inside the through groove; when the driving shaft and the driven shaft move away from each other, the limit plate moves inside the blind hole, the spring is reset, and the spring pushes the arc block to reset.

[0006] Preferably, the telescopic mechanism also includes a blind hole arranged inside the telescopic rod, a spring is installed inside the blind hole, one end of the spring abuts against the telescopic rod, and the other end of the spring abuts against the limit plate, the limit plate is fixed on the stabilizing rod, the stabilizing rod cooperates with the through hole, and the through hole and the blind hole are connected.

[0007] Preferably, the diameter of the blind hole is larger than the diameter of the through hole, and the diameter of the limiting plate is larger than the diameter of the stabilizing rod.

[0008] Preferably, the connecting mechanism comprises a stabilizing block fixed to the arc block on the telescopic mechanism, the stabilizing block is connected to an inclined plate, and a guide block is fixed to one end of the inclined plate away from the stabilizing block, and the guide block cooperates with the slide groove; the movement of the set arc block will drive the stabilizing block to move synchronously along the direction of the stabilizing bar, and when the stabilizing block moves, the stabilizing block will drive the inclined plate to move, and when the inclined plate moves, since the other end of the inclined plate is connected by a rotating pin and a rotating groove, the end of the inclined plate connected to the driven shaft cannot move on the driven shaft, and since the end of the inclined plate fixed to the arc block moves, the end of the inclined plate will rotate around the rotating pin; that is, when the driving shaft and the driven shaft are close to each other, the telescopic mechanism extends, at this time, the end of the inclined plate moves toward the outside of the stabilizing bar, and the end of the inclined plate connected to the driven shaft rotates through the rotating pin. When the driving shaft and the driven shaft depart from each other, the telescopic mechanism is compressed, at this time, the end of the inclined plate moves toward the direction of the stabilizing bar, and the rotating pin rotates inside the rotating groove at the same time.

[0009] Preferably, the connection mechanism further comprises a slide groove arranged on the surface of the driven shaft, a rotating groove is arranged inside the slide groove, a rotating pin is rotatably connected inside the rotating groove, and the rotating pin is fixed on the side wall of the guide block.

[0010] Preferably, the locking mechanism includes a screw sleeve fixed on the side wall of the driven shaft, the middle part of the screw sleeve is connected to a rotating rod by a thread, and the top of the rotating rod is fixedly connected to a rotating disk; after adjusting the distance between the square rod and the driven shaft, it is necessary to manually rotate the rotating disk, and the rotating disk drives the rotating rod to rotate, and the rotating rod will rotate inside the screw sleeve until the bottom of the rotating rod is fixed to the fixing hole, thereby realizing the fixing of the square rod and the driven shaft by the rotating rod, so that the rotating rod and the square rod will not disengage when rotating.

[0011] Preferably, the locking mechanism further comprises a plurality of fixing holes formed on the side wall of the square rod, and the fixing holes are connected to the rotating rod via threads.

[0012] Beneficial effects of the present invention:

[0013] (1) The telescopic mechanism and the connecting mechanism are used in combination, which can facilitate the adjustment of the distance during transmission, and realize elastic connection during transmission, so that the transmission efficiency is higher; the driven shaft is arranged to rotate with the transmission of the connecting mechanism, and the rotation of the driven shaft can drive the square rod to rotate. Since a square hole is provided in the middle of the driven shaft to cooperate with the square rod, when the driven shaft rotates, the square rod rotates, thereby realizing transmission; the locking mechanism can fix the square rod and the driven shaft after adjusting the distance between the square rod and the driven shaft, so that the connection between the square rod and the driven shaft is stable during rotation.

[0014] (2) The driving shaft can drive the stabilizing ring to rotate, and then the stabilizing ring drives the stabilizing rod to rotate synchronously. When the driving shaft or the driven shaft approaches each other, the stabilizing rod moves in the direction of the telescopic rod, and the limit plate fixed at the end of the stabilizing rod squeezes the spring at the same time. The spring is compressed inside the blind hole, and the stabilizing rod slides inside the through groove; when the driving shaft and the driven shaft move away from each other, the limit plate moves inside the blind hole, the spring is reset, and the spring pushes the arc block to reset.

[0015] (3) The movement of the arc block will drive the stabilizing block to move synchronously along the direction of the stabilizing rod. When the stabilizing block moves, the stabilizing block will drive the inclined plate to move. When the inclined plate moves, since the other end of the inclined plate is connected to the driven shaft through a swivel pin and a swivel groove, the end of the inclined plate connected to the driven shaft cannot move on the driven shaft. Since the end of the inclined plate fixed to the arc block moves, the end of the inclined plate will rotate around the swivel pin.

[0016] (4) After adjusting the distance between the square rod and the driven shaft, it is necessary to manually rotate the turntable, which drives the rotating rod to rotate. The rotating rod will rotate inside the screw sleeve until the bottom of the rotating rod is fixed to the fixing hole, thereby fixing the square rod and the driven shaft through the rotating rod, so that the rotating rod and the square rod will not separate when rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 A schematic diagram of the overall structure provided by the present invention;

[0019] Figure 2 It is a front view of the present invention;

[0020] Figure 3 is a side view of the present invention;

[0021] Figure 4 It is a schematic diagram of the telescopic mechanism structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the connection between the connecting mechanism and the driven shaft of the present invention;

[0023] Figure 6 It is a schematic diagram of the installation structure of the locking mechanism of the present invention;

[0024] In the figure: 1. driving shaft; 2. telescopic mechanism; 21. arc block; 22. stabilizing rod; 23. telescopic rod; 24. through hole; 25. blind hole; 26. limit plate; 27. spring; 28. connecting block; 29. ​​stabilizing ring; 3. connecting mechanism; 31. stabilizing block; 32. inclined plate; 33. guide block; 34. slide groove; 35. rotating groove; 36. rotating pin; 4. driven shaft; 5. square rod; 6. fixed plate; 7. locking mechanism; 71. rotating plate; 72. rotating rod; 73. screw sleeve; 74. fixing hole. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0026] like Figure 1-Figure 6As shown, an elastic coupling described in the present invention comprises a telescopic mechanism 2 and a connecting mechanism 3; the telescopic mechanism 2 is connected to the driving shaft 1, the driving shaft 1 is connected to the output shaft, the telescopic mechanism 2 and the connecting mechanism 3 are fixed, the connecting mechanism 3 is installed on the driven shaft 4, the driven shaft 4 is internally connected with a square rod 5, the end of the square rod 5 is connected with a fixed disk 6, the driven shaft 4 is installed with a locking mechanism 7, and the locking mechanism 7 is connected to the square rod 5; by using the telescopic mechanism 2 and the connecting mechanism 3 in coordination, it is convenient to facilitate transmission. The distance can be adjusted, and an elastic connection can be achieved during transmission, so that the transmission efficiency is higher; the driven shaft 4 is set to rotate with the transmission of the connecting mechanism 3, and the rotation of the driven shaft 4 can drive the square rod 5 to rotate. Since a square hole is provided in the middle of the driven shaft 4 to cooperate with the square rod 5, when the driven shaft 4 rotates, the square rod 5 rotates, thereby realizing transmission; the locking mechanism 7 can be set to fix the square rod 5 and the driven shaft 4 after adjusting the distance between the square rod 5 and the driven shaft 4, so that the square rod 5 and the driven shaft 4 are stably connected when rotating.

[0027] Specifically, the telescopic mechanism 2 includes a stabilizing ring 29 fixed on the driving shaft 1, a stabilizing rod 22 fixed on the stabilizing ring 29, a telescopic rod 23 sleeved on the stabilizing rod 22, the stabilizing rod 22 and the telescopic rod 23 are slidably connected, and a connecting block 28 is fixed at the end of the telescopic rod 23, and the connecting block 28 is fixed on the inner wall of the arc block 21; the arc block 21 is fixed to the stabilizing block 31 on the connecting mechanism 3. The driving shaft 1 can drive the stabilizing ring 29 to rotate, and then the stabilizing ring 29 drives the stabilizing rod 22 to rotate synchronously. When the driving shaft 1 or the driven shaft 4 deviates from each other, at this time, the stabilizing rod 22 moves in the direction of the telescopic rod 23, and the limit plate 26 fixed at the end of the stabilizing rod 22 squeezes the spring 27 at the same time, the spring 27 is compressed inside the blind hole 25, and the stabilizing rod 22 slides inside the through groove; when the driving shaft 1 and the driven shaft 4 are close to each other, the limit plate 26 moves inside the blind hole 25, the spring 27 is reset, and the spring 27 pushes the arc block 21 to reset.

[0028] Specifically, the telescopic mechanism 2 also includes a blind hole 25 arranged inside the telescopic rod 23, and a spring 27 is installed inside the blind hole 25. One end of the spring 27 abuts against the telescopic rod 23, and the other end of the spring 27 abuts against the limit plate 26. The limit plate 26 is fixed on the stabilizing rod 22, and the stabilizing rod 22 cooperates with the through hole 24, and the through hole 24 and the blind hole 25 are connected.

[0029] Specifically, the diameter of the blind hole 25 is greater than the diameter of the through hole 24 , and the diameter of the limiting plate 26 is greater than the diameter of the stabilizing rod 22 .

[0030] Specifically, the connecting mechanism 3 includes a stabilizing block 31 fixed to the arc block 21 on the telescopic mechanism 2, and an inclined plate 32 is connected to the stabilizing block 31. A guide block 33 is fixed to one end of the inclined plate 32 away from the stabilizing block 31, and the guide block 33 cooperates with the slide groove 34; the movement of the arc block 21 will drive the stabilizing block 31 to move synchronously along the direction of the stabilizing rod 22, and when the stabilizing block 31 moves, the stabilizing block 31 will drive the inclined plate 32 to move, and when the inclined plate 32 moves, the The other end of the swash plate 32 is connected to the rotating groove 35 through the rotating pin 36. The end of the swash plate 32 connected to the driven shaft 4 cannot move on the driven shaft 4. Since the end of the swash plate 32 fixed to the arc block 21 moves, the end of the swash plate 32 rotates around the rotating pin 36; that is, when the driving shaft 1 and the driven shaft 4 are close to each other, the telescopic mechanism 2 extends, at this time, the end of the swash plate 32 moves toward the outside of the stabilizing bar 22, and the end of the swash plate 32 connected to the driven shaft 4 rotates through the rotating pin 36. When the driving shaft 1 and the driven shaft 4 move away from each other, the telescopic mechanism 2 is compressed, at this time, the end of the swash plate 32 moves toward the direction of the stabilizing bar 22, and the rotating pin 36 rotates inside the rotating groove 35 at the same time.

[0031] Specifically, the connection mechanism 3 further includes a slide groove 34 arranged on the surface of the driven shaft 4 , a rotation groove 35 is arranged inside the slide groove 34 , a rotation pin 36 is rotatably connected inside the rotation groove 35 , and the rotation pin 36 is fixed on the side wall of the guide block 33 .

[0032] Specifically, the locking mechanism 7 includes a screw sleeve 73 fixed on the side wall of the driven shaft 4, the middle part of the screw sleeve 73 is connected to a rotating rod 72 by a thread, and the top of the rotating rod 72 is fixedly connected to a rotating disk 71; after adjusting the distance between the square rod 5 and the driven shaft 4, it is necessary to manually rotate the rotating disk 71, and the rotating disk 71 drives the rotating rod 72 to rotate, and the rotating rod 72 will rotate inside the screw sleeve 73 until the bottom of the rotating rod 72 is fixed to the fixing hole 74, thereby realizing the fixing of the square rod 5 and the driven shaft 4 by the rotating rod 72, so that the rotating rod 72 and the square rod 5 will not be separated when rotating.

[0033] Specifically, the locking mechanism 7 further includes a plurality of fixing holes 74 formed on the side wall of the square rod 5 , and the fixing holes 74 are connected to the rotating rod 72 via threads.

[0034] When the present invention is used, the driving shaft 1 is first connected to the output shaft, and then the distance between the driven shaft 4 and the square rod 5 is adjusted. When the distance between the square rod 5 and the driven shaft 4 is adjusted appropriately, the turntable 71 is rotated, and the turntable 71 drives the rotating rod 72 to rotate. The rotating rod 72 rotates inside the screw sleeve 73 until the bottom of the rotating rod 72 is fixed to the fixing hole 74, so that the square rod 5 and the driven shaft 4 are fixed by the rotating rod 72, so that the rotating rod 72 and the square rod 5 will not be separated when rotating; when the rotating driving shaft 1 and the driven shaft 4 are close to each other, the driving shaft 1 can drive the stabilizing ring 29 to rotate, and then the stabilizing ring 29 drives the stabilizing rod 22 to rotate synchronously. At this time, the limit plate 26 moves inside the blind hole 25, and the spring 27 is reset, and the spring 27 pushes the arc block 21 to reset. The telescopic mechanism 2 is extended, and at this time, the end of the inclined plate 32 moves toward the outside of the stabilizing rod 22, and the end of the inclined plate 32 connected to the driven shaft 4 is rotated through the rotating pin 36. When the rotating driving shaft 1 and the driven shaft 4 move away from each other, the stabilizing rod 22 moves in the direction of the telescopic rod 23, and the stopper plate 26 fixed at the end of the stabilizing rod 22 squeezes the spring 27 at the same time, the spring 27 is compressed inside the blind hole 25, and the stabilizing rod 22 slides inside the through groove; the telescopic mechanism 2 is compressed, and at this time, the end of the inclined plate 32 moves toward the direction of the stabilizing rod 22, and the rotating pin 36 rotates inside the rotating groove 35. Therefore, when rotating, the driving shaft 1 and the driven shaft 4 can be buffered from each other, and the driving shaft 1 and the driven shaft 4 can be elastically connected.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. An elastic coupling, characterized in that: The invention comprises a telescopic mechanism (2) and a connecting mechanism (3); the telescopic mechanism (2) is connected to a driving shaft (1), the driving shaft (1) is connected to an output shaft, the telescopic mechanism (2) and the connecting mechanism (3) are fixed to each other, the connecting mechanism (3) is installed on a driven shaft (4), a square rod (5) is connected inside the driven shaft (4), a fixed plate (6) is connected to the end of the square rod (5), a locking mechanism (7) is installed on the driven shaft (4), and the locking mechanism (7) is connected to the square rod (5); The telescopic mechanism (2) comprises a stabilizing ring (29) fixed on the driving shaft (1), a stabilizing rod (22) fixed on the stabilizing ring (29), a telescopic rod (23) sleeved on the stabilizing rod (22), the stabilizing rod (22) and the telescopic rod (23) being slidably connected, a connecting block (28) being fixed at the end of the telescopic rod (23), and the connecting block (28) being fixed on the inner wall of the arc block (21); the arc block (21) and the stabilizing block (31) on the connecting mechanism (3) are fixed to each other; The telescopic mechanism (2) further comprises a blind hole (25) arranged inside the telescopic rod (23), a spring (27) being installed inside the blind hole (25), one end of the spring (27) being in contact with the telescopic rod (23), the other end of the spring (27) being in contact with a limit plate (26), the limit plate (26) being fixed on the stabilizing rod (22), the stabilizing rod (22) being matched with the through hole (24), and the through hole (24) and the blind hole (25) being connected; The diameter of the blind hole (25) is greater than the diameter of the through hole (24), and the diameter of the limiting plate (26) is greater than the diameter of the stabilizing rod (22); The connecting mechanism (3) comprises a stabilizing block (31) fixed to the arc-shaped block (21) on the telescopic mechanism (2), an inclined plate (32) being connected to the stabilizing block (31), a guide block (33) being fixed to one end of the inclined plate (32) away from the stabilizing block (31), and the guide block (33) being matched with a slide groove (34); The connecting mechanism (3) further comprises a slide groove (34) arranged on the surface of the driven shaft (4), a rotation groove (35) is arranged inside the slide groove (34), a rotation pin (36) is rotatably connected inside the rotation groove (35), and the rotation pin (36) is fixed on the side wall of the guide block (33); The locking mechanism (7) comprises a screw sleeve (73) fixed on the side wall of the driven shaft (4); a rotating rod (72) is connected to the middle of the screw sleeve (73) via a thread; and a rotating disk (71) is fixedly connected to the top of the rotating rod (72); The locking mechanism (7) further comprises a plurality of fixing holes (74) formed on the side wall of the square rod (5), wherein the fixing holes (74) are connected to the rotating rod (72) via threads; When in use, the driving shaft (1) is first connected to the output shaft, and then the distance between the driven shaft (4) and the square rod (5) is adjusted. When the distance between the square rod (5) and the driven shaft (4) is adjusted appropriately, the turntable (71) is rotated, and the turntable (71) drives the rotating rod (72) to rotate. The rotating rod (72) rotates inside the screw sleeve (73) until the bottom of the rotating rod (72) is fixed to the fixing hole (74), thereby fixing the square rod (5) and the driven shaft (4) through the rotating rod (72), so that the rotating rod (72) and the square rod (5) will not be separated when rotating; when the rotating driving shaft (1) and the driven shaft (4) are close to each other, the driving shaft (1) can drive the stabilizing ring (29) to rotate, and then the stabilizing ring (29) drives the stabilizing rod (22) to rotate synchronously. At this time, the limit plate (26) moves inside the blind hole (25), and the spring (27) is reset. The spring (27) pushes the arc block (2 1) reset; the telescopic mechanism (2) is extended, at which time the end of the inclined plate (32) moves toward the outside of the stabilizing rod (22), and the end of the inclined plate (32) connected to the driven shaft (4) rotates through the rotating pin (36); when the rotating driving shaft (1) and the driven shaft (4) move away from each other, the stabilizing rod (22) moves in the direction of the telescopic rod (23), and the limit plate (26) fixed at the end of the stabilizing rod (22) squeezes the spring (27) at the same time, and the spring (27) is compressed inside the blind hole (25), and the stabilizing rod (22) slides inside the through groove; the telescopic mechanism (2) is compressed, at which time the end of the inclined plate (32) moves toward the direction of the stabilizing rod (22), and the rotating pin (36) rotates inside the rotating groove (35); thereby, when rotating, the driving shaft (1) and the driven shaft (4) can be buffered from each other, and an elastic connection can be achieved between the driving shaft (1) and the driven shaft (4).

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