CN211901333U - Novel key connection mechanism of turbine shaft of turbine speed reducer - Google Patents
Novel key connection mechanism of turbine shaft of turbine speed reducer Download PDFInfo
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- CN211901333U CN211901333U CN201922439986.3U CN201922439986U CN211901333U CN 211901333 U CN211901333 U CN 211901333U CN 201922439986 U CN201922439986 U CN 201922439986U CN 211901333 U CN211901333 U CN 211901333U
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- shaft
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- turbine
- speed reducer
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Abstract
The utility model discloses a novel key connecting mechanism of turbine speed reducer turbine shaft, concretely relates to turbine speed reducer subassembly field, including shaft hub and axle keyway, and shaft hub and axle keyway activity joint, the bottom of axle keyway is an organic whole to be formed with the axle, the outer wall of axle keyway all is equipped with the protective layer, fixed joint has the key wedge in the gap that shaft hub and axle keyway formed, the counter sink has been seted up at the top of key wedge, one side of shaft hub seted up with counter sink matched with screw hole. The utility model ensures that the connection between the shaft and the shaft hub is firmer, and the protective layer and the anti-skid grains are arranged on the shaft key groove and the inner and outer walls of the shaft hub, so that the friction between the shaft hub and the shaft key groove is increased in the operation process, the wedge key is not easy to slide out, and the safety is better; the bottom of the shaft hub is provided with the buffering and damping device, so that the generated impulsive force can not damage the shaft hub and the shaft key slot in the running process of an automobile.
Description
Technical Field
The utility model relates to a xx technical field, more specifically say, the utility model relates to a novel key connecting mechanism of turbine speed reducer turbine shaft.
Background
The key connection is a circumferential fixation between the shaft and the parts on the shaft by means of keys to transmit motion and torque.
However, in practical use, the existing key connection mechanism still has some defects, such as complex structure and inconvenient disassembly, and in the traditional wedge key connection, the hook head wedge key is locked axially by friction force without constraint and fixation. When operated in a vibration environment for a long time, the hook wedge may be disengaged due to insufficient friction. Therefore, the shaft and the shaft hub rotate relatively, and the torque cannot be transmitted to cause production accidents.
Therefore, it is desirable to provide a keyed connection that has high friction and provides protection for the key, shaft, and hub.
SUMMERY OF THE UTILITY MODEL
In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides a novel key connecting mechanism of turbine speed reducer turbine shaft has damping device through the bottom fixed mounting at the shaft hub, all is provided with protective layer and anti-skidding line on the interior outer wall of axle keyway and shaft hub, solves the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: including shaft hub and axle keyway, and shaft hub and axle keyway activity joint, the bottom of axle keyway an organic whole is formed with the axle, the outer wall of axle keyway all is equipped with the protective layer, fixed joint has the wedge key in the gap that shaft hub and axle keyway formed, the counter sink has been seted up at the top of wedge key, one side of shaft hub seted up with counter sink matched with screw hole, the fixed joint in top of counter sink has set screw, one side fixed mounting that the bottom of shaft hub is close to the wedge key has the buffering post, the bottom fixed mounting of buffering post has buffer spring, buffer spring's outside fixed cover has connect the shell, the inner wall of shaft hub is equipped with anti-skidding line, the connecting hole has been seted up to the outer wall of shaft hub.
In a preferred embodiment, the shaft key groove is integrally formed at a lower portion thereof with a shaft having a cylindrical shape and a radius having the same value as that of the hub.
In a preferred embodiment, the wedge key is the same in shape and size as the gap formed by the hub and the shaft key groove, and the outer wall of the wedge key is also provided with anti-slip threads.
In a preferred embodiment, the set screw fixedly connects the hub and the wedge key through a counterbore and a screw hole.
In a preferred embodiment, the outer part of the buffer column is fixedly sleeved with the shell, and the bottom of the buffer column is fixedly connected with the shell through the inner bottom surface of the buffer spring.
In a preferred embodiment, the length of the set screw has a value less than half the height of the hub.
In a preferred embodiment, the material of the protective layer is a wear-resistant material member, in particular one of a wear-resistant welding wire or a plastic sleeve.
In a preferred embodiment, the number of the connecting holes is two, and the connecting holes are symmetrically distributed about the symmetry axis of the hub.
The utility model discloses a technological effect and advantage:
1. in the specific use process of the utility model, the screw is arranged at the top of the wedge key, so that the screw can prevent the hook head wedge key from loosening and falling off, the connection between the shaft and the shaft hub is firmer, and the protective layer and the anti-skid grains are arranged on the shaft key groove and the inner and outer walls of the shaft hub, so that the friction force between the shaft hub and the shaft key groove is increased in the operation process, the wedge key is not easy to slide out, and the safety is better;
2. the utility model discloses in concrete use, be provided with buffering damping device through the bottom at the shaft hub for the car is at the operation in-process, and the impulsive force of production can not bring the damage for shaft hub, axle keyway.
Drawings
Fig. 1 is a perspective front view of the present invention.
Fig. 2 is a side view of the present invention.
Fig. 3 is a cross-sectional view of the present invention.
Fig. 4 is an enlarged view of a structure in fig. 3.
Fig. 5 is an enlarged view of the structure at B in fig. 3.
The reference signs are: 1. a hub; 2. a shaft keyway; 3. a shaft; 4. a protective layer; 5. a wedge key; 6. a countersunk hole; 7. screw holes; 8. a set screw; 9. a buffer column; 10. a buffer spring; 11. a housing; 12. Anti-skid lines; 13. and connecting the holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The key connection mechanism of the turbine shaft of the novel turbine speed reducer as shown in the attached drawings 1-5 comprises a shaft hub 1 and a shaft key groove 2, the shaft hub 1 is movably clamped with the shaft key groove 2, a shaft 3 is integrally formed at the bottom of the shaft key groove 2, a protective layer 4 is arranged on the outer wall of the shaft key groove 2, the protective layer 4 is made of a wear-resistant material component, specifically one of a wear-resistant welding wire or a plastic shaft sleeve, a wedge key 5 is fixedly clamped in a gap formed by the shaft hub 1 and the shaft key groove 2, a countersunk hole 6 is formed at the top of the wedge key 5, a screw hole 7 matched with the countersunk hole 6 is formed at one side of the shaft hub 1, a fixing screw 8 is fixedly clamped at the top of the countersunk hole 6, a buffer column 9 is fixedly mounted at one side of the bottom of the shaft hub 1, which is close to the wedge key 5, a buffer spring 10 is fixedly mounted at the bottom of the buffer column 9, a shell 11 is sleeved at the, and the bottom of the buffer column 9 is fixedly connected with the outer shell 11 through the inner bottom surface of the buffer spring 10, the inner wall of the shaft hub 1 is provided with anti-slip grains 12, the outer wall of the shaft hub 1 is provided with connecting holes 13, the number of the connecting holes 13 is two, and the connecting holes 13 are symmetrically distributed about the symmetry axis of the shaft hub 1.
The implementation mode is specifically as follows: in the specific use process of the utility model, the screw is arranged at the top of the wedge key 5, so that the screw can prevent the hook head wedge key from loosening and falling off, the connection between the shaft and the shaft hub is firmer, and the protective layer and the anti-skid grains are arranged on the shaft key groove and the inner and outer walls of the shaft hub, so that the friction force between the shaft hub 1 and the shaft key groove 2 is increased in the operation process, the wedge key 5 is not easy to slide out, and the safety is better; the bottom of the shaft hub 1 is provided with the buffering and damping device, so that the generated impulsive force can not damage the shaft hub 1 and the shaft key groove 2 in the running process of an automobile.
Referring to the attached drawings 3-4 of the specification specifically, the shaft 3 is integrally formed at the lower portion of the shaft key groove 2, the shaft 3 is cylindrical, and the radius value is the same as that of the shaft hub 1, so that the shaft key groove 2 is combined with the shaft hub 1 more tightly without any gap, the wedge key 5 is the same as that of the shaft hub 1 and the shaft key groove 2, the wedge key 5 is tightly attached to the shaft hub 1 and the shaft key groove 2, the outer wall of the wedge key 5 is also provided with anti-slip threads 12, so that the friction force is increased, the wedge key 5 is not easy to slip off, the fixing screw 8 fixedly connects the shaft hub 1 and the wedge key 5 through the countersunk hole 6 and the screw hole 7, and the length value of the fixing screw 8 is smaller than half of the height value of the shaft hub 1, so as to prevent the fixing screw 8 from colliding with the connecting hole 13.
The utility model discloses the theory of operation: before the work, with shaft hub 1 and 2 joints of axle keyway, put into the space that shaft hub 1 and axle keyway 2 formed with wedge key 5, pass through counter bore 6 and screw hole 7 with set screw 8, couple together shaft hub 1 and 5 fixed connection of wedge key, in operation, the frictional force between each subassembly of anti-skidding line 12 increase, protective layer parcel live axle keyway 2, carry out certain protection to axle keyway 2, make each subassembly chucking each other, difficult landing, the vibration range that produces when cushion post 9 cooperation buffer spring 10 can reduce mechanical motion.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;
and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a novel key connecting mechanism of turbine speed reducer turbine shaft, includes shaft hub (1) and axle keyway (2), and shaft hub (1) and axle keyway (2) activity joint, its characterized in that: a shaft (3) is integrally formed at the bottom of the shaft key groove (2), protective layers (4) are arranged on the outer walls of the shaft key groove (2), a wedge key (5) is fixedly clamped in a gap formed by the axle hub (1) and the axle key groove (2), the top of the wedge key (5) is provided with a countersunk hole (6), one side of the shaft hub (1) is provided with a screw hole (7) matched with the countersunk hole (6), a fixing screw (8) is fixedly clamped at the top of the counter bore (6), a buffer column (9) is fixedly arranged at one side of the bottom of the shaft hub (1) close to the wedge key (5), a buffer spring (10) is fixedly arranged at the bottom of the buffer column (9), a shell (11) is fixedly sleeved outside the buffer spring (10), the anti-skidding line (12) are equipped with to the inner wall of axle hub (1), connecting hole (13) have been seted up to the outer wall of axle hub (1).
2. The novel key connecting mechanism of the turbine shaft of the turbine speed reducer as claimed in claim 1, wherein: the shaft keyway (2) is integrally formed with a shaft (3) at the lower part thereof, and the shaft (3) is cylindrical and has the same radius value as that of the shaft hub (1).
3. The novel key connecting mechanism of the turbine shaft of the turbine speed reducer as claimed in claim 1, wherein: the shape and size of the wedge key (5) are the same as the gap formed by the axle hub (1) and the axle key slot (2), and the outer wall of the wedge key (5) is also provided with anti-skid grains (12).
4. The novel key connecting mechanism of the turbine shaft of the turbine speed reducer as claimed in claim 1, wherein: the fixing screw (8) fixedly connects the shaft hub (1) and the wedge key (5) through the countersunk hole (6) and the screw hole (7).
5. The novel key connecting mechanism of the turbine shaft of the turbine speed reducer as claimed in claim 1, wherein: the outer portion of the buffer column (9) is fixedly sleeved with a shell (11), and the bottom of the buffer column (9) is fixedly connected with the shell (11) through the inner bottom surface of the buffer spring (10).
6. The novel key connecting mechanism of the turbine shaft of the turbine speed reducer as claimed in claim 1, wherein: the length value of the fixing screw (8) is less than half of the height value of the hub (1).
7. The novel key connecting mechanism of the turbine shaft of the turbine speed reducer as claimed in claim 1, wherein: the protective layer (4) is made of a wear-resistant component, specifically one of a wear-resistant welding wire or a plastic shaft sleeve.
8. The novel key connecting mechanism of the turbine shaft of the turbine speed reducer as claimed in claim 1, wherein: the number of the connecting holes (13) is two, and the connecting holes (13) are symmetrically distributed about the symmetry axis of the shaft hub (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922439986.3U CN211901333U (en) | 2019-12-30 | 2019-12-30 | Novel key connection mechanism of turbine shaft of turbine speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922439986.3U CN211901333U (en) | 2019-12-30 | 2019-12-30 | Novel key connection mechanism of turbine shaft of turbine speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211901333U true CN211901333U (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922439986.3U Active CN211901333U (en) | 2019-12-30 | 2019-12-30 | Novel key connection mechanism of turbine shaft of turbine speed reducer |
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| CN (1) | CN211901333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112638098A (en) * | 2021-02-05 | 2021-04-09 | 宁波康加分电器科技有限公司 | Heat dissipation base capable of continuously working |
-
2019
- 2019-12-30 CN CN201922439986.3U patent/CN211901333U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112638098A (en) * | 2021-02-05 | 2021-04-09 | 宁波康加分电器科技有限公司 | Heat dissipation base capable of continuously working |
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