CN107676397B - Coupling structure capable of being assembled quickly - Google Patents
Coupling structure capable of being assembled quickly Download PDFInfo
- Publication number
- CN107676397B CN107676397B CN201711079276.3A CN201711079276A CN107676397B CN 107676397 B CN107676397 B CN 107676397B CN 201711079276 A CN201711079276 A CN 201711079276A CN 107676397 B CN107676397 B CN 107676397B
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- CN
- China
- Prior art keywords
- sleeve
- slot
- internal thread
- mounting
- boss
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/02—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like
- F16D1/04—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for connecting two abutting shafts or the like with clamping hub; with hub and longitudinal key
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
- F16D1/10—Quick-acting couplings in which the parts are connected by simply bringing them together axially
- F16D1/108—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling
- F16D1/112—Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling the interengaging parts comprising torque-transmitting surfaces, e.g. bayonet joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
Abstract
The invention discloses a coupling structure capable of being assembled quickly, which comprises the following components: the shaft coupling comprises a mounting cylinder and two sleeves, wherein the two sleeves are respectively fixed in two ends of the mounting cylinder, and at least one internal thread is arranged on the inner wall of the sleeve. One end of the shaft is a mounting end, an external thread matched with the internal thread is arranged on the outer wall of the mounting end, and the mounting end is inserted into the sleeve in a rotating way along the internal thread. The invention utilizes the self weight of the shaft to automatically screw in the coupler for assembly, and has the advantages of no need of tools, high assembly speed and high efficiency.
Description
Technical Field
The invention relates to the technical field of couplings, in particular to a coupling structure capable of being assembled quickly.
Background
Most of the coupler structures in the current market are formed by fastening threads, the shafts at the two ends of the coupler are aligned and inserted and then are locked by bolts, the assembly process is complex, the time consumption is long, and the coupler is required to be disassembled and assembled by a threaded fastening torque tool. For example, a common coupler is assembled with a motor shaft, a D-shaped shaft of the motor shaft and a D-shaped hole of the coupler are required to be aligned in the assembly process, a bolt is used for being vertically driven into and screwed on the D-shaped shaft, and a bolt fixing hole reserved on a fan blade is required to be penetrated when the bolt is driven, so that the disassembly and assembly are very difficult, the efficiency is low, a special moment tool is required, and great manpower and resource waste are caused.
Therefore, how to design a coupling structure that can be disassembled and assembled without tools, with simple structure and high efficiency is a technical problem to be solved in the industry.
Disclosure of Invention
In order to solve the defects in the prior art, the invention provides a coupling structure capable of being assembled quickly.
The invention adopts the technical scheme that a coupler structure capable of being assembled quickly is designed, and the coupler structure comprises: the shaft coupling comprises a mounting cylinder and two sleeves, wherein the two sleeves are respectively fixed in two ends of the mounting cylinder, and at least one internal thread is arranged on the inner wall of the sleeve. One end of the shaft is a mounting end, an external thread matched with the internal thread is arranged on the outer wall of the mounting end, and the mounting end is inserted into the sleeve in a rotating way along the internal thread.
Preferably, the inner wall of the sleeve is tapered with the diameter gradually increasing from the inside of the mounting cylinder to the outside of the mounting cylinder, and the shape of the mounting end is matched with the shape of the inner wall of the sleeve.
Preferably, the thread width of the internal thread increases gradually from the inside of the installation cylinder to the outside of the installation cylinder.
Preferably, a slot connected with the internal thread is arranged on the outer end surface of the sleeve, the slot penetrates through the inner wall of the sleeve, and the external thread is screwed into the internal thread from the slot.
Preferably, a boss connected with the external thread is arranged on the outer wall of the mounting end, and the boss slides into the slot along with the rotation of the external thread. The grooving is provided with a guide side surface connected with the edge of the internal thread, the guide side surface is an inclined surface inclined towards the outside of the installation cylinder, the inclination of the inclined surface is consistent with that of the internal thread, and the boss slides into the grooving along the inclined surface. The slot is also provided with a limit side surface for stopping the boss from continuing to rotate, and the limit side surface is perpendicular to the outer end surface of the sleeve. When the boss contacts the bottom surface of the slot, one side surface of the boss is abutted with the limiting side surface.
Preferably, a plurality of internal threads are uniformly distributed on the inner wall of the sleeve, and a plurality of external threads which are the same as the internal threads in number and are matched one by one are arranged on the mounting end. Further, a plurality of slots with the same number as the internal threads are arranged on the outer end surface of the sleeve, and each internal thread is provided with a slot connected with the internal thread; the outer wall of the mounting end is provided with a plurality of bosses the same as the external threads in number, and each external thread is provided with a boss connected with the external thread; the boss slides into the corresponding slot along with the rotation of the external thread.
Preferably, the mounting cylinder is made of damping rubber, the sleeve is made of metal, and the sleeve is fixedly adhered in the mounting cylinder through fastening glue.
In one embodiment, the internal and external threads are right-handed threads, and the mounting end is threaded into the sleeve clockwise or out of the sleeve counterclockwise.
Compared with the prior art, the self-locking type self-locking shaft is provided with the internal thread in the sleeve, the external thread is arranged on the shaft, the self-locking type self-locking shaft is automatically screwed into and assembled by utilizing the self-gravity of the shaft, and the shaft and the coupling are locked by utilizing the self-locking structure of the threads, so that the self-locking type self-locking shaft can be disassembled and assembled without tools, and the self-locking type self-locking shaft is high in assembly speed and efficiency.
Drawings
The invention is described in detail below with reference to examples and figures, wherein:
FIG. 1 is a schematic illustration of the coupling and shaft of the present invention in an unassembled configuration;
fig. 2 is a perspective view showing an assembled state of the coupling according to the present invention;
FIG. 3 is a schematic cross-sectional view of the coupling of the present invention in an assembled state;
fig. 4 is a perspective view of the coupling of the present invention in a disengaged state;
FIG. 5 is a schematic cross-sectional view of the coupling of the present invention in a disengaged condition;
FIG. 6 is a schematic perspective view of a central shaft of the present invention;
FIG. 7 is a schematic perspective view of a sleeve according to the present invention;
FIG. 8 is an enlarged schematic view at A in FIG. 7;
fig. 9 is a schematic cross-sectional view of the coupling and two shafts in an assembled state.
Detailed Description
As shown in fig. 1, the present invention provides a coupling structure, including: a coupling 1 and a shaft 2.
As shown in fig. 2 to 5, the coupling 1 is composed of a mounting cylinder 11 and two sleeves 12, a circle of convex parts are arranged in the middle position inside the mounting cylinder 11, the two sleeves 12 are respectively fixed in two ends of the mounting cylinder 11, one end of each sleeve 12 facing the inside of the mounting cylinder 11 is an inner end, the other end facing the outside of the mounting cylinder 11 is an outer end, the inner ends of the two sleeves 12 are abutted on the convex parts, and the outer ends are flush with the outer end face of the mounting cylinder 11. The installation cylinder 11 is made of damping rubber, the sleeve 12 is made of metal, the installation cylinder 11 and the sleeve 12 are formed through injection molding, and then the installation cylinder 11 is fixedly arranged in the installation cylinder 11 through fastening adhesive to form an integrated structure, and the damping rubber is corrosion-resistant and good in damping effect.
As shown in fig. 2 to 5, at least one internal thread 121 is provided on the inner wall of the sleeve 12, and preferably a plurality of internal threads 121 are uniformly distributed on the inner wall of the sleeve 12. As shown in fig. 6, one end of the shaft 2 is a mounting end 21, a plurality of external threads 211 with the same number as the internal threads 121 are arranged on the mounting end 21, the external threads 211 are matched with the internal threads 121 one by one, the mounting end 21 is inserted into the sleeve 12 along the internal threads 121 in a rotating way, and the self-weight assembly of the shaft 2 is utilized, and no tool is needed. Preferably, the inner wall of the sleeve 12 is tapered with a diameter gradually increasing from the inside of the mounting cylinder 11 to the outside of the mounting cylinder 11, and the shape of the mounting end 21 is matched with the shape of the inner wall of the sleeve 12, so that the shaft 2 can conveniently slide in from the outer end to the inner end of the sleeve 12. Further, the tooth width of the internal thread 121 gradually increases from the inside of the installation cylinder 11 to the outside of the installation cylinder 11, when the installation end 21 rotates initially, the end with smaller tooth width of the external thread 211 is screwed into the end with larger tooth width of the internal thread 121, the rotation resistance is small, the installation end 21 can rotate rapidly to the inner end along the internal thread 121 under the self weight of the shaft 2, when the installation end 21 gradually rotates to the inner end of the sleeve 12, the internal thread 121 and the external thread 211 are matched more and more tightly until the rotation cannot be continued, the threads of the installation end 21 and the sleeve 12 are locked, and the axial positioning of the installation end 21 is stable.
More preferably, as shown in fig. 7 and 8, the outer end surface of the sleeve 12 is provided with grooves 122 the same as the number of the internal threads 121, each internal thread 121 is provided with a groove 122, the groove 122 is connected with the outer end of the internal thread 121 and penetrates through the inner wall of the sleeve 12, and the external thread 211 is screwed into the internal thread 121 from the groove 122. As shown in fig. 6, the outer wall of the mounting end 21 is provided with the same number of bosses 212 as the external threads 211, each external thread 211 is provided with a boss 212, and the boss 212 is connected with the inner end of the external thread 211 and slides into the corresponding slot 122 along with the rotation of the external thread 211. The slot 122 is provided with a guiding side 123 connected with the edge of the internal thread 121, the guiding side 123 presents a slope inclined towards the outside of the mounting cylinder 11, the slope of the slope is consistent with that of the internal thread 121, and the boss 212 slides into the slot 122 along the slope. The slot 122 is also provided with a limit side 124 for stopping the boss 212 from continuing to rotate, the limit side 124 is perpendicular to the outer end surface of the sleeve 12, and when the boss 212 contacts the bottom surface 125 of the slot 122, one side surface of the boss 212 is abutted with the limit side 124, so that the purpose of positioning the shaft is achieved. The shaft 2 is only required to rotate in the opposite direction during disassembly, and the boss 212 is rotated up along the inclined plane until the shaft 2 is completely withdrawn.
As shown in fig. 1 and 9, in the preferred embodiment, the internal thread 121 and the external thread 211 are both right-handed threads, after the shafts 2 at the two ends of the coupling 1 are all installed, the shaft 2 at the left end rotates clockwise under the action of a motor, and due to the matching relationship between the shaft 2 at the left end and the coupling 1, the shaft at the left end drives the coupling 1 to rotate clockwise under the combined action of the boss and the threads. For the shaft at the right end, the shaft coupler 1 rotates to drive the shaft at the right end to rotate, the rotation direction of the shaft coupler 1 is opposite to the screw direction, and the shaft corresponding to the right end is screwed into and fastened along the internal screw 121, so that the assembly between the shaft at the right end and the shaft coupler 1 is firmer, the faster the rotation, the more fastened the assembly between the two shafts 2 and the shaft coupler 1, and the self-locking effect is realized. When the sleeve 12 is detached, the mounting end 21 is unscrewed counterclockwise.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. A quick-assembly coupling structure comprising: the novel coupling comprises a coupling (1) and a shaft (2) arranged at the end part of the coupling (1), and is characterized in that the coupling (1) is composed of a mounting cylinder (11) and two sleeves (12), the two sleeves (12) are respectively fixed in two ends of the mounting cylinder (11), at least one internal thread (121) is arranged on the inner wall of the sleeve (12), and the tooth width of the internal thread (121) is gradually increased from the inside of the mounting cylinder (11) to the outside of the mounting cylinder (11);
one end of the shaft (2) is a mounting end (21), an external thread (211) matched with the internal thread (121) is arranged on the outer wall of the mounting end (21), and the mounting end (21) is inserted into the sleeve (12) along the internal thread (121) in a rotating way;
a slot (122) connected with the internal thread (121) is formed in the outer end face of the sleeve (12), the slot (122) penetrates through the inner wall of the sleeve (12), the external thread (211) is screwed into the internal thread (121) from the slot (122), a boss (212) connected with the inner end of the external thread (211) is arranged on the outer wall of the mounting end (21), and the boss (212) rotates along with the external thread (211) and slides into the slot (122);
the slot (122) is also provided with a limit side surface (124) for blocking the boss (212) from continuing to rotate, and when the boss (212) contacts the bottom surface of the slot (122), one side surface of the boss (212) is abutted with the limit side surface (124).
2. A coupling structure according to claim 1, wherein the inner wall of the sleeve (12) is tapered with a diameter gradually increasing along the inside of the mounting cylinder (11) towards the outside of the mounting cylinder (11), and the shape of the mounting end (21) matches the shape of the inner wall of the sleeve (12).
3. A coupling structure according to claim 1, wherein said slot (122) is provided with a guiding flank (123) connected to the edge of said internal thread (121), said guiding flank (123) presenting a slope inclined towards the outside of said mounting cylinder (11), and the slope of said slope being in accordance with said internal thread (121), said boss (212) sliding into the slot (122) along said slope.
4. A coupling structure according to claim 1, wherein the stop flanks (124) are perpendicular to the outer end face of the sleeve (12).
5. A coupling structure according to any one of claims 1 to 4, wherein a plurality of internal threads (121) are uniformly distributed on the inner wall of the sleeve (12), and a plurality of external threads (211) which are the same as the number of the internal threads (121) and are matched one by one are arranged on the mounting end (21).
6. A coupling structure according to claim 5, wherein a plurality of slots (122) of the same number as the internal threads (121) are provided in the outer end face of the sleeve (12), each internal thread (121) being provided with a slot (122) connected thereto; the outer wall of the mounting end (21) is provided with a plurality of bosses (212) the same as the external threads (211), and each external thread (211) is provided with a boss (212) connected with the external thread; the boss (212) slides into the corresponding slot (122) along with the rotation of the external thread (211).
7. The coupling structure according to claim 1, wherein the mounting cylinder (11) is made of shock-absorbing rubber, the sleeve (12) is made of metal, and the sleeve (12) is adhered and fixed in the mounting cylinder (11) through fastening glue.
8. A coupling structure according to claim 1, wherein the internal (121) and external (211) threads are right-hand threads, and the mounting end (21) is screwed into the sleeve (12) clockwise or out of the sleeve (12) counter-clockwise.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079276.3A CN107676397B (en) | 2017-11-06 | 2017-11-06 | Coupling structure capable of being assembled quickly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079276.3A CN107676397B (en) | 2017-11-06 | 2017-11-06 | Coupling structure capable of being assembled quickly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107676397A CN107676397A (en) | 2018-02-09 |
| CN107676397B true CN107676397B (en) | 2023-08-29 |
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ID=61146377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711079276.3A Active CN107676397B (en) | 2017-11-06 | 2017-11-06 | Coupling structure capable of being assembled quickly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107676397B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273855A (en) | 2018-03-15 | 2019-09-24 | 珠海格力电器股份有限公司 | Sleeve assembly, fan blade mounting structure and air conditioner |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298298Y (en) * | 1997-01-15 | 1998-11-25 | 徐德荣 | Reinforced bar connector |
| US6206436B1 (en) * | 1999-02-19 | 2001-03-27 | Hydril Company | Differential wedge thread for threaded connector |
| TWM315238U (en) * | 2007-02-07 | 2007-07-11 | Yan-Hau Chen | Coupler structure of steel bar |
| CN204164022U (en) * | 2014-08-21 | 2015-02-18 | 广东美的暖通设备有限公司 | For the coupling of air-conditioning draught fan, blower fan and air conditioner |
| CN106855076A (en) * | 2017-01-10 | 2017-06-16 | 宝鸡文理学院 | The multi-thread new-type screw thread of compound tooth form |
| CN207569085U (en) * | 2017-11-06 | 2018-07-03 | 珠海格力电器股份有限公司 | A kind of coupler structure of quick assembling |
-
2017
- 2017-11-06 CN CN201711079276.3A patent/CN107676397B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2298298Y (en) * | 1997-01-15 | 1998-11-25 | 徐德荣 | Reinforced bar connector |
| US6206436B1 (en) * | 1999-02-19 | 2001-03-27 | Hydril Company | Differential wedge thread for threaded connector |
| TWM315238U (en) * | 2007-02-07 | 2007-07-11 | Yan-Hau Chen | Coupler structure of steel bar |
| CN204164022U (en) * | 2014-08-21 | 2015-02-18 | 广东美的暖通设备有限公司 | For the coupling of air-conditioning draught fan, blower fan and air conditioner |
| CN106855076A (en) * | 2017-01-10 | 2017-06-16 | 宝鸡文理学院 | The multi-thread new-type screw thread of compound tooth form |
| CN207569085U (en) * | 2017-11-06 | 2018-07-03 | 珠海格力电器股份有限公司 | A kind of coupler structure of quick assembling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107676397A (en) | 2018-02-09 |
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