CN217421924U

CN217421924U - Adjustable-center gear coupling

Info

Publication number: CN217421924U
Application number: CN202220924018.0U
Authority: CN
Inventors: 张伟; 孟晓敏; 赵信义
Original assignee: Baotou Iron and Steel Group Co Ltd
Current assignee: Baotou Iron and Steel Group Co Ltd
Priority date: 2022-04-20
Filing date: 2022-04-20
Publication date: 2022-09-13
Anticipated expiration: 2032-04-20

Abstract

The utility model provides a centering gear coupling, which belongs to the technical field of couplings, wherein a driving shaft end and a driven shaft end of the centering gear coupling are connected together through a driving shaft tooth end and a driven shaft tooth end, so that the torque between a motor and mechanical equipment is increased, the operation stability and mechanical efficiency of the equipment coupling are improved, and the equipment is allowed to move in a larger axial direction in the rotating process to become a centering coupling; the driving shaft tooth end and the driven shaft tooth end are screwed clockwise through the inner screw thread and the outer screw thread, the screwing direction of the screw thread is consistent with the rotating direction of mechanical equipment, the screw thread between the driving shaft tooth end and the driven shaft tooth end of the equipment in operation is tighter and tighter, and the situation of falling and loosening is avoided, so that the reliability of the coupler is higher.

Description

Adjustable-center gear coupling

Technical Field

The utility model relates to a shaft coupling technical field especially relates to an adjustable center gear shaft coupling.

Background

The coupling is a device for connecting two shafts or a shaft and a rotating part, rotating together in the process of transmitting motion and power and not separating under normal conditions. Sometimes it is used as a safety device to prevent the coupled machine parts from bearing excessive load, and it plays the role of overload protection.

Couplings can be divided into two broad categories, rigid couplings and flexible couplings. The rigid coupling does not have the buffer property and the capability of compensating the relative displacement of two axes, and requires strict centering of the two axes, but the rigid coupling has the advantages of simple structure, lower manufacturing cost, convenient assembly, disassembly and maintenance, capability of ensuring higher centering property of the two axes, larger transmission torque and wide application. Flange couplings, sleeve couplings, split coupling and the like are commonly used.

The flexible coupling can be divided into an inelastic element flexible coupling and an elastic element flexible coupling, the former type only has the capability of compensating the relative displacement of two axes but cannot buffer and damp vibration, and a sliding block coupling, a tooth type coupling, a universal coupling, a chain coupling and the like are common; the latter type has the capability of compensating relative displacement of two axes due to the elastic element, and also has the functions of buffering and vibration reduction, but the transmitted torque is limited by the strength of the elastic element, and is generally not as good as a flexible coupling without the elastic element, such as a common elastic sleeve pin coupling, an elastic pin coupling, a quincunx coupling, a tire type coupling, a serpentine spring coupling, a reed coupling and the like. The gear coupling is most widely applied to various mechanical transmissions because of its large transmission capacity and small moment of inertia.

The commonly used gear couplings are mostly connected with two internal teeth or two half couplings by pins or bolts, and the bolt connecting structure is easy to damage and lose efficacy in long-term use, so that the normal use of important equipment is difficult to ensure.

Therefore, the manufacturing of the center-adjustable gear coupling with simple structure and reliable work has great significance in the field of couplings.

SUMMERY OF THE UTILITY MODEL

In view of this, for solving the gear coupling among the prior art and adopting bolted connection's the easy impaired inefficacy of structure, be difficult to guarantee the technical problem of important equipment's normal use, the utility model provides an adjustable heart gear coupling, its driving shaft axle head and driven shaft axle head link together through driving shaft tooth end and driven shaft tooth end, make equipment allow great axial float at the rotation in-process, become an adjustable heart shaft coupling.

In order to achieve the above purpose, the utility model provides a following technical scheme:

an adjustable center gear coupling comprising:

the outer part of the lower end of the driving shaft is provided with a first convex tooth, and the inner part of the driving shaft is fixedly connected with the driving shaft through a driving shaft connecting key;

the inner part of the driving shaft tooth end is sequentially provided with an inner screw thread and a first concave tooth extending to the outside from bottom to top;

the outer part of the upper end of the driven shaft tooth end is provided with an outer screw thread, and a second concave tooth extending to the outer part of the lower end is arranged in the driven shaft tooth end in a penetrating way;

the outer part of the upper end of the driven shaft end is provided with a second convex tooth, and the inside of the driven shaft end is fixedly connected with the driven shaft through a driven shaft connecting key;

the first concave teeth are positioned at the positions extending to the outside and are rotationally connected with a first rotating block;

the second concave teeth extend to the position outside the lower end and are rotatably connected with a second rotary block;

the first convex teeth are connected with the first concave teeth;

the screwing direction of the inner screw thread and the outer screw thread is consistent with the rotating direction of the driving shaft and the driven shaft;

the second convex teeth are connected with the second concave teeth.

Preferably, a first rubber oil seal is arranged at the joint of the shaft end of the driving shaft and the tooth end of the driving shaft.

Preferably, a second rubber oil seal is arranged at the joint of the driven shaft tooth end and the driven shaft end.

Preferably, the joint of the first convex tooth and the first concave tooth and the joint of the second convex tooth and the second concave tooth are both filled with lubricating oil.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model provides a but adjustable core gear shaft coupling, its driving shaft axle head and driven shaft axle head link together through driving shaft tooth end and driven shaft tooth end, have increased the moment between motor and the mechanical equipment, have improved equipment shaft coupling operating stability and mechanical efficiency; the device can allow large axial movement in the rotation process, and becomes a coupler with adjustable center.

2. The utility model provides an adjustable core gear shaft coupling, driving shaft tooth end and driven shaft tooth end are screwed clockwise through interior screw thread and outer screw thread, and the direction that the screw thread was screwed is unanimous with mechanical equipment's direction of rotation, and equipment can be more and more tight at the screw thread between driving shaft tooth end and the driven shaft tooth end in service, can not appear droing and not hard up situation for this shaft coupling reliability is higher.

3. The utility model provides an adjustable center gear coupling, the power that receives between driving shaft tooth end and the driven shaft tooth end mainly is frictional force, and traditional gear coupling atress mainly is the shearing force for this gear coupling long service life is difficult for taking place mechanical failure.

4. The utility model provides an adjustable-center gear coupling, mechanical efficiency is high, stability is good, simple structure, reliable operation, long service life, and used part is convenient to process, preparation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of each component of the present invention;

FIG. 3 is a schematic view of the installation of the present invention;

FIG. 4 is a cross-sectional view A-A of the present invention;

FIG. 5 is a cross-sectional view B-B of the present invention;

in the figure, 1. a driving shaft; 2. the shaft end of the driving shaft; 3. a first convex tooth; 4. a drive shaft connecting key; 5. a first rotary block; 6. a driving shaft toothed end; 7. a first concave tooth; 8. inner screw threads; 9. external screw threads; 10. a driven shaft tooth end; 11. a second concave tooth; 12. a second rotary block; 13. a second lobe; 14. a driven shaft connecting key; 15. the shaft end of the driven shaft; 16. a driven shaft.

Detailed Description

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model provides an adjustable center gear coupling, include:

the external part of the lower end of the driving shaft end 2 is provided with a first convex tooth 3, and the internal part of the driving shaft end is fixedly connected with the driving shaft 1 through a driving shaft connecting key 4;

the inner part of the driving shaft tooth end 6 is sequentially provided with an inner screw thread 8 and a first concave tooth 7 extending to the outside from bottom to top;

the outer screw thread 9 is arranged outside the upper end of the driven shaft tooth end 10, and a second concave tooth 11 extending to the outer part of the lower end is arranged in the driven shaft tooth end in a penetrating mode;

the outer part of the upper end of the driven shaft end 15 is provided with a second convex tooth 13, and the driven shaft end is fixedly connected with a driven shaft 16 through a driven shaft connecting key 14;

the first concave teeth 7 are positioned at the positions extending to the outside and are rotationally connected with a first rotating block 5;

a second rotary block 12 is rotatably connected to the position where the second concave tooth 11 extends to the outside of the lower end;

the first convex teeth 3 are connected with the first concave teeth 7;

the screwing direction of the inner screw thread 8 and the outer screw thread 9 is consistent with the rotating direction of the driving shaft 1 and the driven shaft 16;

the second convex tooth 13 is connected with the second concave tooth 11.

In the self-aligning gear coupling provided by the utility model, the driving shaft 1 is a motor shaft, and the driven shaft 16 is a shaft of mechanical equipment;

the distance between the driving shaft end 2 and the driven shaft end 15 is far, so that the equipment is allowed to have large axial movement, only the axial center can be adjusted, and the horizontal or vertical center cannot be adjusted.

The utility model discloses in, driving shaft axle head 2 with the junction of driving shaft tooth end 6 is provided with first rubber oil blanket.

The utility model discloses in, driven shaft tooth end 10 with the junction of driven shaft axle head 15 is provided with second rubber oil blanket.

In the present invention, the joint of the first convex tooth 3 and the first concave tooth 7 and the joint of the second convex tooth 13 and the second concave tooth 11 are filled with lubricating oil, wherein the lubricating oil is preferably yellow glycerin or annen grease.

The utility model discloses a theory of operation and use flow are as follows:

when the driving shaft connecting key is used, the driving shaft end 2 is installed on the driving shaft 1 (motor shaft), the driving shaft 1 and the driving shaft end 2 are fixedly connected together through the driving shaft connecting key 4, the driven shaft end 15 is installed on the mechanical equipment shaft (driven shaft 16), and the driven shaft 16 and the driven shaft end 15 are fixed together through the driven shaft connecting key 14. The first concave tooth 7 is sleeved on the first convex tooth 3, the second concave tooth 11 is sleeved on the second convex tooth 13, the second rotary block 12 is fixed by one wrench, the first rotary block 5 is rotated clockwise by the other wrench, and the outer screw thread 9 and the inner screw thread 8 are fixed together through screw threads.

First, the two shafts and the assembly are keyed together. The two fixing modes have reliable work and convenient assembly;

secondly, the driving shaft end 1 and the driven shaft end 15 are connected together through the driving shaft tooth end 6 and the driven shaft tooth end 10, and the device allows large axial movement in the rotating process, so that the shaft coupling becomes a shaft coupling with adjustable center.

Thirdly, the driving shaft tooth end 6 and the driven shaft tooth end 10 are connected together through screw threads, the screwing direction of the screw threads is consistent with the rotating direction of mechanical equipment, the screw threads between the driving shaft tooth end 6 and the driven shaft tooth end 10 of the equipment in the running process are tighter and tighter, and the situation of falling and loosening is avoided, so that the reliability of the coupler is higher.

Finally, the power that receives each other of driving shaft tooth end 6 and driven shaft tooth end 10 is mainly friction, and traditional gear coupling atress is mainly the shearing force, makes the utility model discloses gear coupling life is longer.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An adjustable center gear coupling, comprising:

the inner part of the tooth end of the driving shaft is sequentially provided with an inner screw thread and a first concave tooth extending to the outside from bottom to top;

the outer part of the upper end of the driven shaft end is provided with a second convex tooth, and the inner part of the driven shaft end is fixedly connected with the driven shaft through a driven shaft connecting key;

the first convex teeth are connected with the first concave teeth;

the second convex teeth are connected with the second concave teeth.

2. The adjustable center gear coupling according to claim 1, wherein a first rubber oil seal is arranged at the joint of the shaft end of the driving shaft and the tooth end of the driving shaft.

3. The adjustable center gear coupling according to claim 1, wherein a second rubber oil seal is arranged at the joint of the tooth end of the driven shaft and the shaft end of the driven shaft.

4. A tuneable gear coupling according to any of claims 1-3, wherein the junction of the first male and female teeth and the junction of the second male and female teeth are filled with a lubricating oil.