Novel coupling hoop

Abstract

The novel coupling hoop comprises a motor output shaft, a speed reducer input shaft is connected to the upper side of the motor output shaft in an inserted mode, an inner spline groove is formed in the upper end of the motor output shaft, an outer spline groove is formed in the upper end of the speed reducer input shaft, and the inner spline groove and the outer spline groove are connected through a spline rod. A hoop is inserted in the upper side of the speed reducer input shaft, an extension sleeve is integrally connected to the lower side of the hoop, the hoop and the extension sleeve are provided with an upper compression seam and a lower compression seam respectively, rod penetrating holes are symmetrically formed in the two sides of the upper compression seam, fastening parts penetrate through the inner sides of the rod penetrating holes, and the rear end face of the hoop is in threaded connection with pan head screws. The tip of the pan head screw makes contact with the outer end face of the speed reducer input shaft. The utility model effectively solves the problems in the prior art that the hoop is easy to slip in the fastening process, the hoop is inconvenient to fix on the input shaft of the speed reducer, and the spline rod is easy to fall off from the key slot.

Description

Technical Field

[0001] The utility model belongs to the technical field of novel coupling clamps and relates to a novel coupling clamp. Background Art

[0002] The three-compartment rotary air preheater reducer currently used in power plants is composed of a main drive motor, a first-stage reduction gear of a drive device, a second-stage turbine of a drive device, a bearing for a worm gear reducer, a top bearing oil level gauge, a bottom bearing oil level gauge and other components. During operation, the first-stage reduction of the reducer drive device is prone to loosening of the fastening bolts of the motor transmission key itself during operation, and the spline rod loses its fixation and detaches from the keyway, causing the motor to operate normally but the air preheater to lose drive, resulting in the air preheater being shut down; the Chinese patent with authorization number CN209494851 discloses a clamp-type coupling and a swing gate movement device, including a left half coupling, a right half coupling, a fixing bolt, and a coupling jacket; the left half coupling and the right half coupling form an annular structure, wherein a cavity is formed between the left half coupling and the right half coupling; the coupling jacket is a hollow cylinder, and the coupling jacket is arranged in the cavity. The beneficial effects of the utility model are: simple structure, easy installation and disassembly, and no need for lubrication; the utility model adopts a clamp structure to compensate for a certain axial displacement, small radial and angular displacement, and better achieve the concentricity between the shafts; the rated load can be adjusted by adjusting the bolt, and the bolt can be adjusted to achieve no gap between the connecting shafts, thereby extending the service life U of the transmission part of the swing gate movement. However, the technical solution has the problem that the clamp is prone to thread slippage during the tightening process, and it is not convenient to fix the clamp on the input shaft of the reducer, and the spline rod is prone to fall off from the keyway, so a new coupling clamp is urgently needed. Utility Model Content

[0003] In view of the above problems, the utility model proposes a new coupling clamp, which effectively solves the problems in the prior art that the clamp is prone to thread slippage during the tightening process, it is inconvenient to fix the clamp on the reducer input shaft, and the spline rod is easy to fall off from the keyway.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A new coupling clamp comprises a motor output shaft, a reducer input shaft is plugged into the upper side of the motor output shaft, an inner spline groove is opened at the upper end of the motor output shaft, an outer spline groove is opened inside the upper end of the reducer input shaft, the inner spline groove and the outer spline groove are connected by a spline rod, a sleeve clamp is plugged into the upper side of the reducer input shaft, an extension sleeve is integrally connected to the lower side of the sleeve clamp, an upper compression seam and a lower compression seam are respectively opened at the sleeve clamp and the extension sleeve, rod through holes are symmetrically opened on both sides of the upper compression seam, a fastening component is penetrated inside the rod through hole, a pan head screw is threadedly connected to the rear end face of the sleeve clamp, and the tip of the pan head screw contacts the outer end face of the reducer input shaft.

[0006] Preferably, the locking component includes a socket connected to the left side of the upper compression seam, the socket is connected to the left side through-rod hole, a threaded groove is connected to the right side of the upper compression seam, the right end of the threaded groove is connected to the right side through-rod hole, a fastening rod is passed through the through-rod hole, an external thread is opened on one side of the fastening rod, and the external thread is threadedly connected to the threaded groove.

[0007] Preferably, the fastening rod includes a rod cap, a rod body and a threaded joint, which are fixedly connected in sequence, a first hexagonal groove is opened on the left end face of the rod cap, a nut is threadedly connected to the threaded joint, and a second hexagonal groove is opened on the right end face of the threaded joint.

[0008] Preferably, the outer diameter of the rod cap is larger than the inner diameter of the socket.

[0009] Preferably, the hole, the rod-penetrating hole, and the thread groove are coaxial.

[0010] Preferably, a through threaded hole is opened on the rear side of the ferrule, and a pan head screw is threadedly connected to the through threaded hole.

[0011] Preferably, the upper compression seam and the lower compression seam are connected and overlap in the vertical direction.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. Fix the sleeve on the outer end surface of the reducer input shaft and make the extended sleeve contact the rear end surface of the external spline groove to prevent the spline rod from falling off.

[0014] 2. Tighten the pan head screws to further fix the position of the spline rod between the inner spline groove and the outer spline groove.

[0015] 3. By rotating the fastening rod in the positive direction, due to the threaded connection between the external thread and the thread groove, the upper compression gap width and the lower compression gap width become smaller at the same time, thereby facilitating fixing the sleeve at the position of the reduction input shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first axonometric structural schematic diagram of the utility model.

[0017] Figure 2 This is a second axonometric structural schematic diagram of the utility model.

[0018] Figure 3 It is a schematic diagram of the hoop structure of the utility model.

[0019] Figure 4 This is a schematic diagram of the second hexagonal groove structure of the utility model.

[0020] Figure 5 This is a schematic diagram of the extension sleeve structure of the utility model.

[0021] Figure 6 This is a schematic diagram of the structure of the reducer input shaft of the utility model.

[0022] In the figure: 1. reducer input shaft; 2. motor output shaft; 3. ferrule; 4. extension sleeve; 5. upper compression seam; 6. rod hole; 7. rod body; 8. pan head screw; 9. threaded joint; 10. nut; 11. second hexagonal groove; 12. threaded hole; 13. rod cap; 14. socket; 15. spline rod; 16. internal spline groove; 17. external spline groove; 18. external thread. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-6 The utility model provides a technical solution: a new coupling clamp, including a motor output shaft 2, a reducer input shaft 1 is inserted on the upper side of the motor output shaft 2, an inner spline groove 16 is opened on the upper end of the motor output shaft 2, an outer spline groove 17 is opened inside the upper end of the reducer input shaft 1, the inner spline groove 16 and the outer spline groove 17 are connected by a spline rod 15, a sleeve clamp 3 is inserted on the upper side of the reducer input shaft 1, an extension sleeve 4 is integrally connected to the lower side of the sleeve clamp 3, the sleeve clamp 3 and the extension sleeve 4 are respectively provided with an upper compression seam 5 and a lower compression seam, the upper compression seam 5 has symmetrically opened rod holes 6 on both sides, a fastening component is penetrated inside the rod hole 6, a pan head screw 8 is threadedly connected to the rear end face of the sleeve clamp 3, and the tip of the pan head screw 8 contacts the outer end face of the reducer input shaft 1.

[0025] First, insert the reducer input shaft 1 into one end of the motor output shaft 2, and insert the spline rod 15 into the position between the inner spline groove 16 and the outer spline groove 17, then face the tip of the pan head screw 8 to the middle of the rear end surface of the spline rod 15, and fix the sleeve 3 to the outer end surface position of the reducer input shaft 1 by adjusting the fastening components, and extend the sleeve 4 to contact the rear end surface position of the outer spline groove 17 to prevent the spline rod 15 from falling off outwards, tighten the pan head screw 8, and further fix the spline rod 15 between the inner spline groove 16 and the outer spline groove 17 through the pan head screw 8.

[0026] The locking component includes a socket 14 connected to the left side of the upper compression slit 5, the socket 14 is connected to the left side through-rod hole 6, a thread groove is connected to the right side of the upper compression slit 5, the right end of the thread groove is connected to the right through-rod hole 6, a fastening rod is inserted into the through-rod hole 6, and an external thread 18 is formed on one side of the fastening rod, and the external thread 18 is threadedly connected to the thread groove. By rotating the fastening rod in the positive direction, due to the threaded connection of the external thread 18 with the thread groove, the width of the upper compression slit 5 and the width of the lower compression slit are simultaneously reduced, so that the sleeve 3 is easily fixed to the position of the speed reduction input shaft.

[0027] The fastening rod includes a rod cap 13, a rod body 7 and a threaded joint 9, which are fixedly connected in sequence. The left end face of the rod cap 13 is provided with a first hexagonal groove, the threaded joint 9 is threadedly connected with a nut 10, and the right end face of the threaded joint 9 is provided with a second hexagonal groove 11. The staff member holds the rod cap 13 in position, removes the nut 10, and the threaded connector 9 is inserted into the rod hole 6 on the left, and passes through the jack 14 and the thread groove in turn. When the rod cap 13 is adjusted to the right end position of the left rod hole 6, the hexagonal wrench is inserted into the first hexagonal groove, and the hexagonal wrench is rotated in the positive direction. Due to the threaded connection between the external thread 18 and the thread groove, the width of the upper compression gap 5 and the width of the lower compression gap are simultaneously reduced, so that it is convenient to fix the hoop 3 in the position of the reduction input shaft; the first hexagonal groove is not shown in the figure. The shape of the first hexagonal groove and the shape and diameter of the second hexagonal groove 11 are the same. Through the use of the first hexagonal groove and the second hexagonal groove 11, it is convenient for the staff to rotate the tightening rod separately from both sides, and adjust the width of the upper compression gap 5 and the width of the lower compression gap at the same time, and at the same time reduce the phenomenon of failure of the hoop to tighten the reducer input shaft 1 due to wear caused by setting a single first hexagonal groove.

[0028] The outer diameter of the rod cap 13 is larger than the inner diameter of the socket 14, which makes it easy for the rod cap 13 to contact the right end face of the left side through-rod hole 6, so that the width of the upper compression seam 5 can be adjusted by rotating the rod cap 13. The diameter of the nut 10 is larger than the inner diameter of the thread groove, and its purpose is to limit the displacement of the rod body 7 on the left and right sides of the through-rod hole 6 and prevent the fastening rod from being separated from the through-rod hole 6 and being lost.

[0029] The inserting hole 14, the rod-penetrating hole 6 and the threaded groove are coaxial, so it is convenient to insert the fastening rod into the position inside the rod-penetrating hole 6, the inserting hole 14 and the threaded groove.

[0030] A through threaded hole 12 is formed at the rear side of the ferrule 3, and the pan head screw 8 is threadedly connected to the through threaded hole 12. By threading the pan head screw 8 to the through threaded hole 12, the pan head screw 8 contacts the rear side of the spline rod 15 and presses against the spline rod 15, preventing the spline rod 15 from slipping out of the inner spline groove 16.

[0031] The upper compression slit 5 is connected to the lower compression slit and overlaps in the vertical direction. By tightening the fastening rod, the distance between the width of the upper compression slit 5 and the width of the lower compression slit is reduced at the same time, so that the sleeve hoop 3 can be quickly fastened to the outer end position of the speed reduction input shaft.

[0032] When the utility model is in use, firstly, the reducer input shaft 1 is inserted into one end of the motor output shaft 2, and the spline rod 15 is inserted into the position between the inner spline groove 16 and the outer spline groove 17, and then the tip of the pan head screw 8 is facing the middle of the rear end surface of the spline rod 15, and by adjusting the fastening components, the hoop 3 is fixed to the outer end surface position of the reducer input shaft 1 and the position of the extended sleeve 4 contacts the rear end surface position of the outer spline groove 17 to prevent the spline rod 15 from falling off outwards, and the pan head screw 8 is tightened to further fix the spline rod 15 in the position between the inner spline groove 16 and the outer spline groove 17 through the pan head screw 8.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of coupling clamp, characterized by: It includes a motor output shaft, a reducer input shaft is plugged into the upper side of the motor output shaft, an inner spline groove is opened at the upper end of the motor output shaft, an outer spline groove is opened inside the upper end of the reducer input shaft, the inner spline groove and the outer spline groove are connected by a spline rod, a sleeve is plugged into the upper side of the reducer input shaft, an extension sleeve is integrally connected to the lower side of the sleeve, the sleeve and the extension sleeve are respectively provided with an upper compression seam and a lower compression seam, rod through holes are symmetrically opened on both sides of the upper compression seam, a fastening component is penetrated inside the rod through hole, a pan head screw is threadedly connected to the rear end face of the sleeve, and the tip of the pan head screw contacts the outer end face of the reducer input shaft.

2. The novel coupling clamp according to claim 1 is characterized in that: The locking component includes a socket connected to the left side of the upper compression seam, the socket is connected to the left side through-rod hole, a threaded groove is connected to the right side of the upper compression seam, the right end of the threaded groove is connected to the right side through-rod hole, a fastening rod is passed through the through-rod hole, an external thread is opened on one side of the fastening rod, and the external thread is threadedly connected to the threaded groove.

3. The novel coupling clamp according to claim 1 is characterized in that: The fastening rod includes a rod cap, a rod body and a threaded joint, which are fixedly connected in sequence. The left end face of the rod cap is provided with a first hexagonal groove, the threaded joint is threadedly connected with a nut, and the right end face of the threaded joint is provided with a second hexagonal groove.

4. The novel coupling clamp according to claim 3 is characterized in that: The outer diameter of the rod cap is larger than the inner diameter of the socket.

5. The novel coupling clamp according to claim 1 is characterized in that: The hole, rod hole and thread groove are coaxial.

6. The novel coupling clamp according to claim 1 is characterized in that: A through threaded hole is provided at the rear side of the ferrule, and a pan head screw is threadedly connected with the through threaded hole.

7. The novel coupling clamp according to claim 1 is characterized in that: The upper compression seam and the lower compression seam are connected and overlap in the vertical direction.

Images