CN204493488U - Coupling - Google Patents
Coupling Download PDFInfo
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- CN204493488U CN204493488U CN201520151485.4U CN201520151485U CN204493488U CN 204493488 U CN204493488 U CN 204493488U CN 201520151485 U CN201520151485 U CN 201520151485U CN 204493488 U CN204493488 U CN 204493488U
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- axle body
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- spring
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Abstract
The utility model discloses a kind of coupling, for transmitting torque, the second axle body comprising the first axle body, coaxially arrange with the first axle body, is characterized in that, also comprises for making the first axle body and the second axle body keep the first spring of docking with certain pretightening force; By the transmission of cone tooth between the first axle body and the second axle body; Wherein: when the axial thrust load of the interaction force between the first axle body and the second axle body is greater than pretightening force, the first axle body is separated with the second axle body and forms side set.The first axle body of coupling of the present utility model and the second axle body are by the transmission of cone tooth; and docked with certain pretightening force by the first spring; when because transmitting torque is excessive, drive unit cannot provide enough moments of torsion (that is: drive unit is in overload); the first axle body is separated with the second axle body and forms side set under the effect of axial separation, thus makes the driven shaft of the live axle of drive unit and load throw off to realize overload protection.
Description
Technical field
The utility model relates to mechanical transmission fields, particularly relates to a kind of coupling.
Background technique
Coupling is the vitals in the transmission system of machinery (comprising fixed equipment and mobile device), it is connected between the live axle of drive unit and the driven shaft of load (or driven device) usually, for the moment of torsion of drive unit is passed to load, realize certain function to make load.Drive unit often there will be following situation when driving load: when still cannot drive load when the Maximum Torque that drive unit exports, the live axle of drive unit just can stop operating, and now drive unit is in overload.Such as, when the Maximum Torque that motor (drive unit) exports cannot drive speed reducer (driven device), the live axle of motor can stop operating.The overload of drive unit produces very large negative effect for its usability and working life.Such as, can generate heat when motor is in overload and even can burn.
But most coupling of the prior art not to the overload protection function of drive unit or the effect of overload protection poor.
Model utility content
For the above-mentioned technical problem existed in prior art, the utility model provides a kind of coupling be connected between the live axle of drive unit and the driven shaft of load, and this coupling can play good overload protective function to drive unit.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of coupling, for transmitting torque, the second axle body comprising the first axle body, coaxially arrange with described the first axle body, also comprises for making described the first axle body and described the second axle body keep the first spring of docking with certain pretightening force; By the transmission of cone tooth between described the first axle body and described the second axle body; Wherein: when the axial thrust load of the interaction force between described the first axle body and described the second axle body is greater than described pretightening force, described the first axle body is separated with described the second axle body and forms side set.
Preferably, the butt end of described the first axle body is fixed with bevel gear, and the butt end of described the second axle body is fixed with the cone gear ring for engaging with described bevel gear.
Preferably, also comprise the cover for seat be set on described the first axle body, the endoporus of described cover for seat is formed towards the First terrace of described the second axle body, described the first axle body is formed with the second step face relative with described First terrace, described first spring housing is located on described first axle sleeve, and two ends are resisted against on described First terrace and described second step face respectively.
Preferably, also comprise adjusting nut, described adjusting nut is formed with the first coaxial hole and the second hole, and described second hole is unthreaded hole, described first hole arranges internal thread away from the one end in described second hole, and the diameter in described second hole is less than the diameter in described first hole and forms the 3rd step surface; Described adjusting nut is connected in described cover for seat by described internal thread, and is located on described the second axle body by described second borehole jack; Described the second axle body is formed with four step surface relative with described 3rd step surface, and the described the second axle body between described 3rd step surface and described 4th step surface is also arranged with end face bearing.
Preferably, described the second axle body goes back fixed cover and is connected to drive sleeve, the described the second axle body between described drive sleeve and described adjusting nut is also arranged with the second spring.
Preferably, the perisporium of described drive sleeve also offers radial through and axially extended slotted hole, described the second axle body is equipped with driving pin, and the two ends of described driving pin are stretched out outside described drive sleeve by described slotted hole.
Preferably, described first spring is belleville spring.
Compared with prior art; the beneficial effect of coupling of the present utility model is: the first axle body of coupling of the present utility model and the second axle body are by the transmission of cone tooth; and docked with certain pretightening force by the first spring; when because transmitting torque is excessive, drive unit cannot provide enough moments of torsion (that is: drive unit is in overload); the first axle body is separated with the second axle body and forms side set under the effect of axial separation, thus makes the driven shaft of the live axle of drive unit and load throw off to realize overload protection.
Accompanying drawing explanation
Fig. 1 is the structural representation of coupling of the present utility model.
In figure:
10-the first axle body; 11-bevel gear; 12-second step face; 20-the second axle body; 21-bores gear ring; 22-the 4th step surface; 30-first spring; 40-cover for seat; 41-First terrace; 50-adjusting nut; 51-the 3rd step surface; 60-second spring; 70-drive sleeve; 80-driving pin.
Embodiment
For making those skilled in the art better understand the technical solution of the utility model, below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As shown in Figure 1, embodiment of the present utility model discloses a kind of coupling, is connected between the live axle of drive unit and the driven shaft of load (or driven device), passes to load for the moment of torsion exported by drive unit.This coupling comprises the first axle body 10, the second axle body 20 and the first spring 30.The first axle body 10 and the second axle body 20 are coaxially arranged, and the first axle body 10 and the second axle body 20 are by the transmission of cone tooth, and the first spring 30 makes the first axle body 10 and the second axle body 20 keep docking and engaging with certain pretightening force.So, because the first axle body 10 and the second axle body 20 are by the transmission of cone tooth, when the first axle body 10 and the second axle body 20 transmitting torque, interaction force is produced between the first axle body 10 and the second axle body 20, this active force can resolve into two component, one of them component is the power in circumference, this component is used for transmitting torque, another component is power axially, if when transmitting torque is excessive, this component axially can make the first axle body 10 be separated with the second axle body 20, thus makes the first axle body 10 and the second axle body 20 form side set.Because the first axle body 10 and the second axle body 20 form side set, the live axle of drive unit and the driven shaft of load are thrown off thus are realized the overload protection to drive unit.
Coupling of the present utility model has the function to drive unit overload protection, can effectively prevent drive unit from damaging or service life reduction.
The cone tooth forming the transmission of cone tooth directly can be offered on the first axle body 10 and the second axle body 20, can certainly process in advance, then be fixed on the first axle body 10 and the second axle body 20.In a preferred embodiment of the present utility model, as shown in Figure 1, the butt end of the first axle body 10 is fixed with bevel gear 11 by the mode of welding, and the butt end of the second axle body 20 is fixed with the cone gear ring 21 for engaging with bevel gear 11 by welding manner.This bevel gear 11 and cone gear ring 21 are processing accessories in advance.
First spring 30 can make the first axle body 10 and the second axle body 20 keep certain pretightening force by stretching, also the first axle body 10 and the second axle body 20 can be made to keep certain pretightening force by compression, and the first spring 30 can be arranged on the first axle body 10, or be arranged on the second axle body 20, or be arranged between the first axle body 10 and the second axle body 20.In a preferred embodiment of the present utility model, as shown in Figure 1, the first axle body 10 is arranged with a cover for seat 40, the endoporus of cover for seat 40 is formed towards the First terrace 41 of the second axle body 20, the first axle body 10 is formed with the second step face 12 relative with First terrace 41, first spring 30 is set on the first axle sleeve, and between First terrace 41 and second step face 12.So, the compression under the effect in First terrace 41 and second step face 12 of the first spring 30 makes the first axle body 10 and the second axle body 20 keep certain pretightening force.In the present embodiment, the first spring 30 is belleville spring.
In fact, the pretightening force that the Maximum Torque (Maximum Torque of this Maximum Torque for the first axle body 10 and the second axle body 20 can not be caused to form side set) can transmitted between the first axle body 10 and the second axle body 20 is provided by the first spring 30 limits.For the pretightening force of the first spring 30 can be regulated, in a preferred embodiment of the present utility model, as shown in Figure 1, coupling also comprises adjusting nut 50, adjusting nut 50 is formed with the first coaxial hole and the second hole, second hole is unthreaded hole, and the first hole arranges internal thread away from the one end in the second hole, and the diameter in the second hole is less than the diameter in the first hole and forms the 3rd step surface 51; Adjusting nut 50 is located in cover for seat 40 by inner screw sheath, and is located on the second axle body 20 by the second borehole jack; The second axle body 20 is formed on the second axle body 20 between the 4th step surface the 22, three step surface 51 relative with the 3rd step surface 51 and the 4th step surface 22 and is also arranged with end face bearing.So, by the decrement regulating adjusting nut 50 to adjust the first spring 30, and then the size of adjustment pretightening force, thus the Maximum Torque can transmitted between control the first axle body 10 and the second axle body 20.
In a preferred embodiment of the present utility model, as shown in Figure 1, the second axle body 20 is gone back fixed cover and be connected to drive sleeve 70, the second axle body 20 between drive sleeve 70 and adjusting nut 50 is also arranged with the second spring 60, this second spring 60 freely rotates to prevent adjusting nut 50 for holding out against adjusting nut 50.
For reserving certain axial movement value to live axle or driven shaft, the perisporium of drive sleeve 70 also offers radial through and axially extended slotted hole 71, the second axle body 20 is equipped with driving pin 80, and the two ends of driving pin 80 are stretched out outside drive sleeve 70 by slotted hole 71.So, the axial movement value of the live axle and driven shaft that are arranged on coupling two ends equals the distance of driving pin 80 movement in slotted hole 71.Further, driving pin 80, except playing position-limiting action, can also play the effect of " insurance ".When the first axle body 10 and the second axle body 20 are by cone tooth transmitting torque; tooth between the first axle body 10 and the second axle body 20 is stuck and when cannot throw off; under the effect of moment of torsion, driving pin 80 is cut off by the second axle body 20 and drive sleeve 70, thus available protecting drive unit.
The first axle body 10 of coupling of the present utility model can connect live axle, can certainly connect driven shaft, and preferably, the first axle body 10 connects live axle, and drive sleeve 70 connects driven shaft.
In sum, coupling of the present utility model makes live axle and driven shaft achieve to flexibly connect, thus achieves the overload protection to drive unit (drive unit comprises motor, stepper motor etc.).
Above embodiment is only exemplary embodiment of the present utility model, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can in essence of the present utility model and protection domain, and make various amendment or equivalent replacement to the utility model, this amendment or equivalent replacement also should be considered as dropping in protection domain of the present utility model.
Claims (7)
1. a coupling, for transmitting torque, the second axle body comprising the first axle body, coaxially arrange with described the first axle body, is characterized in that, also comprises for making described the first axle body and described the second axle body keep the first spring of docking with certain pretightening force; By the transmission of cone tooth between described the first axle body and described the second axle body; Wherein: when the axial thrust load of the interaction force between described the first axle body and described the second axle body is greater than described pretightening force, described the first axle body is separated with described the second axle body and forms side set.
2. coupling according to claim 1, is characterized in that, the butt end of described the first axle body is fixed with bevel gear, and the butt end of described the second axle body is fixed with the cone gear ring for engaging with described bevel gear.
3. coupling according to claim 2, it is characterized in that, also comprise the cover for seat be set on described the first axle body, the endoporus of described cover for seat is formed towards the First terrace of described the second axle body, described the first axle body is formed with the second step face relative with described First terrace, described first spring housing is located on described first axle sleeve, and two ends are resisted against on described First terrace and described second step face respectively.
4. coupling according to claim 3, it is characterized in that, also comprise adjusting nut, described adjusting nut is formed with the first coaxial hole and the second hole, described second hole is unthreaded hole, described first hole arranges internal thread away from the one end in described second hole, and the diameter in described second hole is less than the diameter in described first hole and forms the 3rd step surface; Described adjusting nut is connected in described cover for seat by described internal thread, and is located on described the second axle body by described second borehole jack; Described the second axle body is formed with four step surface relative with described 3rd step surface, and the described the second axle body between described 3rd step surface and described 4th step surface is also arranged with end face bearing.
5. coupling according to claim 4, is characterized in that, described the second axle body goes back fixed cover and is connected to drive sleeve, and the described the second axle body between described drive sleeve and described adjusting nut is also arranged with the second spring.
6. coupling according to claim 5, it is characterized in that, the perisporium of described drive sleeve also offers radial through and axially extended slotted hole, described the second axle body is equipped with driving pin, and the two ends of described driving pin are stretched out outside described drive sleeve by described slotted hole.
7. coupling according to claim 1, is characterized in that, described first spring is belleville spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520151485.4U CN204493488U (en) | 2015-03-17 | 2015-03-17 | Coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520151485.4U CN204493488U (en) | 2015-03-17 | 2015-03-17 | Coupling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204493488U true CN204493488U (en) | 2015-07-22 |
Family
ID=53572808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520151485.4U Active CN204493488U (en) | 2015-03-17 | 2015-03-17 | Coupling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204493488U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105666700A (en) * | 2016-03-30 | 2016-06-15 | 北汽福田汽车股份有限公司 | Stirring shaft, stirring mechanism and concrete pump truck |
| CN107489381A (en) * | 2017-09-28 | 2017-12-19 | 山西风雷钻具有限公司 | Antioverloading helicoid hydraulic motor |
| CN113931939A (en) * | 2021-08-31 | 2022-01-14 | 江苏泰克曼传动设备有限公司 | Take shaft coupling of safety protection function |
-
2015
- 2015-03-17 CN CN201520151485.4U patent/CN204493488U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105666700A (en) * | 2016-03-30 | 2016-06-15 | 北汽福田汽车股份有限公司 | Stirring shaft, stirring mechanism and concrete pump truck |
| CN105666700B (en) * | 2016-03-30 | 2018-05-11 | 北汽福田汽车股份有限公司 | Agitating shaft, rabbling mechanism and concrete mixer |
| CN107489381A (en) * | 2017-09-28 | 2017-12-19 | 山西风雷钻具有限公司 | Antioverloading helicoid hydraulic motor |
| CN113931939A (en) * | 2021-08-31 | 2022-01-14 | 江苏泰克曼传动设备有限公司 | Take shaft coupling of safety protection function |
| CN113931939B (en) * | 2021-08-31 | 2024-03-29 | 江苏泰克曼传动设备有限公司 | Coupler with safety protection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LANGFANG JINRUN ELECTRICAL CO., LTD. Free format text: FORMER OWNER: LANGFANG JINRUN TECHNOLOGY CO., LTD. Effective date: 20150813 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150813 Address after: 065001 Langfang city in Hebei Province Road Development Zone, the new Austrian Yaohua Industrial Co. Ltd. North hi tech Patentee after: LANGFANG JINRUN ELECTRIC CO., LTD. Address before: 065600 banyan Boulevard, Yongqing Industrial Park, Langfang, Hebei Patentee before: Langfang Jin Run Science and Technology Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 065000 Langfang City, Hebei Province Economic Development Zone Chang Xiang Guangyang Road, South Road East 100 Patentee after: Langfang Jin run electric Limited by Share Ltd Address before: 065001 Langfang city in Hebei Province Road Development Zone, the new Austrian Yaohua Industrial Co. Ltd. North hi tech Patentee before: LANGFANG JINRUN ELECTRIC CO., LTD. |