CN219866123U - Speed reducer with overload protection structure - Google Patents
Speed reducer with overload protection structure Download PDFInfo
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- CN219866123U CN219866123U CN202321093039.3U CN202321093039U CN219866123U CN 219866123 U CN219866123 U CN 219866123U CN 202321093039 U CN202321093039 U CN 202321093039U CN 219866123 U CN219866123 U CN 219866123U
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- speed reducer
- worm
- permanent magnet
- overload protection
- protection structure
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 63
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000008859 change Effects 0.000 description 6
- 238000012423 maintenance Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
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Abstract
The utility model relates to the field of speed reducers, and discloses a speed reducer with an overload protection structure, which comprises a speed reducer body and a connecting mechanism, wherein the connecting mechanism is arranged in the speed reducer body; the connecting mechanism comprises a worm, a sliding sleeve, a key groove, a flat key, a permanent magnet, a spline, an electromagnet, a matching groove and a rotation speed sensor. According to the utility model, the key groove and the flat key are arranged, so that the sliding sleeve can move on the worm, the key groove and the flat key can also rotate along with the worm, and then the sliding sleeve can move along with the permanent magnet through the cooperation between the electromagnet and the permanent magnet, so that the spline can be matched with the matching groove for use, and the working state of the worm is controlled.
Description
Technical Field
The utility model relates to the field of speed reducers, in particular to a speed reducer with an overload protection structure.
Background
The speed reducer is called as a speed reducer, the speed reducer cannot generate power, is a machine for transmitting power between a prime motor and a working machine, is transmission equipment frequently used in industrial production, has various types and functions, and is suitable for various industrial production types. The speed reducer has two main functions, namely, the function of reducing the rotating speed and the function of increasing the torque.
In the whole running process of the worm gear reducer, if long-term load is carried, the damage of the gear rack reducer is easy to generate, and the worm gear reducer is usually used in the environment with large load change due to worm drive in the use process, so that the worm is often damaged due to overload, the maintenance cost is increased, the working efficiency is also seriously influenced, and the practical application and operation are not facilitated.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides the speed reducer with the overload protection structure, so that the problem that worm drive is often used in an environment with large load change, and the worm is often damaged due to overload is solved, thereby not only increasing the maintenance cost, but also seriously affecting the working efficiency.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the speed reducer comprises a speed reducer body and a connecting mechanism, wherein the connecting mechanism is arranged in the speed reducer body;
the connecting mechanism comprises a worm, a sliding sleeve, a key groove, a flat key, a permanent magnet, a spline, an electromagnet, a matching groove and a rotation speed sensor;
the inside of the speed reducer body is fixedly connected with a fixed plate, the inside of the fixed plate is rotationally connected with a worm, the outer side of the worm is slidably connected with a sliding sleeve, the outer side of the worm is provided with a key slot, and the inside of the sliding sleeve is provided with a flat key matched with the key slot;
through above-mentioned technical scheme, through setting up coupling mechanism to can carry out power cutting off when the speed reducer takes place to overload.
Further, one end of the sliding sleeve is fixedly connected with a permanent magnet, and one side of the permanent magnet, which is far away from the sliding sleeve, is fixedly connected with a spline;
through the technical scheme, the permanent magnets can be connected by utilizing the characteristic of the spline.
Further, an electromagnet with an annular structure is fixedly propped against one side of the inside of the speed reducer body and one side of the permanent magnet, a rotary connecting plate is rotatably connected to one side of the inside of the speed reducer body and the inside of the electromagnet, a matching groove is formed in the rotary connecting plate, and the matching groove is matched with a spline for use;
through above-mentioned technical scheme, through the cooperation of cooperation groove and spline to realize rotating the connection of connecting plate and permanent magnet.
Further, a rotating ring is rotatably connected to the inside of the speed reducer body and below the worm, a worm wheel is fixedly connected to the outer side of the rotating ring, and the worm wheel is in meshed connection with the worm;
through the technical scheme, the speed reducer is convenient to reduce the rotating speed and improve the torque better.
Further, a controller is fixedly connected to the top of the speed reducer body, one end of the worm extends to the outer side of the speed reducer body and is fixedly connected with a rotating speed sensor, and the electromagnet and the rotating speed sensor are both meshed with the controller through wires;
through the technical scheme, the rotating speed change can be more sensitively detected through the arrangement of the rotating speed sensor.
Further, the outer side of the speed reducer body is connected with an asynchronous motor through a screw, the outer side of the rotating connecting plate is provided with a connecting sleeve, and the output end of the asynchronous motor is connected with the rotating connecting plate through the connecting sleeve;
through above-mentioned technical scheme, through above-mentioned setting, be convenient for make the better drive of asynchronous motor rotate the connecting plate and rotate.
The utility model has the following beneficial effects:
can make the slip cap remove on the worm through setting up keyway and flat key, and also can rotate along with the worm through keyway and flat key, then through the cooperation between electro-magnet and the permanent magnet, make the slip cap can remove along with the permanent magnet, thereby make the spline can cooperate the use with the cooperation groove, thereby control the operating condition of worm, through above-mentioned setting, thereby worm drive is used under the environment that the load change is great usually, often can lead to the worm to take place to damage because of transshipping, thereby not only increased cost of maintenance, still can seriously influence work efficiency's problem.
Drawings
FIG. 1 is an isometric view of a speed reducer with overload protection structure according to the present utility model;
fig. 2 is a schematic diagram of the internal structure of a speed reducer body with an overload protection structure according to the present utility model;
FIG. 3 is a cross-sectional view of a connection mechanism of a speed reducer with an overload protection structure according to the present utility model;
fig. 4 is an isometric view of a connection mechanism of a speed reducer with an overload protection structure according to the present utility model.
Legend description:
1. a speed reducer body; 2. a fixing plate; 3. a worm; 4. a sliding sleeve; 5. a key slot; 6. a flat key; 7. a permanent magnet; 8. a spline; 9. an asynchronous motor; 10. an electromagnet; 11. rotating the connecting plate; 12. a mating groove; 13. a rotating ring; 14. a worm wheel; 15. a controller; 16. a rotation speed sensor.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-4, one embodiment provided by the present utility model is: the speed reducer comprises a speed reducer body 1 and a connecting mechanism, wherein the connecting mechanism is arranged in the speed reducer body 1;
the connecting mechanism comprises a worm 3, a sliding sleeve 4, a key groove 5, a flat key 6, a permanent magnet 7, a spline 8, an electromagnet 10, a matching groove 12 and a rotating speed sensor 16;
the inside of the speed reducer body 1 is fixedly connected with a fixed plate 2, the inside of the fixed plate 2 is rotationally connected with a worm 3, the outer side of the worm 3 is slidably connected with a sliding sleeve 4, a key slot 5 is formed in the outer side of the worm 3, and a flat key 6 matched with the key slot 5 is arranged in the sliding sleeve 4;
one end of the sliding sleeve 4 is fixedly connected with a permanent magnet 7, and one side of the permanent magnet 7 away from the sliding sleeve 4 is fixedly connected with a spline 8; one side inside the speed reducer body 1 and one side that is located the permanent magnet 7 are fixedly propped up and are connected with annular structure's electro-magnet 10, and one side inside the speed reducer body 1 and the inside that is located electro-magnet 10 rotate and are connected with the rotation connecting plate 11, and the cooperation groove 12 has been seted up to the inside of rotation connecting plate 11, and cooperation groove 12 and spline 8 cooperation use.
In this embodiment, the sliding sleeve 4 can move on the worm 3 by arranging the key slot 5 and the flat key 6, and can also rotate along with the worm 3 by the key slot 5 and the flat key 6, and then the sliding sleeve 4 can move along with the permanent magnet 7 by matching between the electromagnet 10 and the permanent magnet 7, so that the spline 8 can be matched with the matching groove 12, thereby controlling the working state of the worm 3.
Example 2
Referring to fig. 1-4, the present utility model further provides an embodiment: the inside of the speed reducer body 1 and positioned below the worm 3 are rotationally connected with a rotating ring 13, the outer side of the rotating ring 13 is fixedly connected with a worm wheel 14, and the worm wheel 14 is meshed with the worm 3, so that the effects of reducing the rotating speed and improving the torque can be achieved; the top of the speed reducer body 1 is fixedly connected with a controller 15, one end of the worm 3 extends to the outer side of the speed reducer body 1 and is fixedly connected with a rotating speed sensor 16, the electromagnet 10 and the rotating speed sensor 16 are both meshed with the controller 15 through wires, and the rotating speed sensor 16 can detect rotating speed change more sensitively; the outside of speed reducer body 1 is connected with asynchronous motor 9 through the screw, and the outside of rotating connecting plate 11 is provided with the adapter sleeve, and the output of asynchronous motor 9 is connected with rotating connecting plate 11 through the adapter sleeve, and asynchronous motor 9 better drive rotates connecting plate 11 and rotates.
Working principle: in actual use, when the output power of the asynchronous motor 9 is high under the condition that the voltage and the frequency are unchanged, the load is high, the slip ratio is high, the output power is also high, the rotating speed is reduced when the load is increased, so that the rotating speed of the worm 3 in the speed reducer body 1 can be sensed through the rotating speed sensor 16, if the obvious change of the rotating speed is detected, the electromagnet 10 can be controlled to work through the controller 15, the electromagnet 10 and the permanent magnet 7 can repel and attract each other, so that the position of the permanent magnet 7 can be controlled by utilizing the characteristic, the spline 8 is driven to move through the permanent magnet 7, then the working purpose of controlling the rotating state of the worm 3 is realized through the matching of the spline 8 and the matching groove 12, and therefore, when the load of the speed reducer is overlarge, the permanent magnet 10 is repelled, and is pushed away, the permanent magnet 7 drives the spline 8 to be separated from the matching groove 12, so that the rotating output of the worm 3 is cut off, the overload protection of the speed reducer body 1 is realized, and the worm 3 is used in a circumstance that the transmission load of the worm 3 is changed, so that the worm 3 is damaged due to the fact that the overload is frequently caused, the overload is not only, the maintenance cost is seriously is increased, and the working efficiency is also solved.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. The utility model provides a speed reducer with overload protection structure, includes speed reducer body (1) and coupling mechanism, its characterized in that: the connecting mechanism is arranged in the speed reducer body (1);
the connecting mechanism comprises a worm (3), a sliding sleeve (4), a key groove (5), a flat key (6), a permanent magnet (7), a spline (8), an electromagnet (10), a matching groove (12) and a rotating speed sensor (16);
the inside fixed connection fixed plate (2) of speed reducer body (1), the inside rotation of fixed plate (2) is connected with worm (3), the outside sliding connection of worm (3) has slip cap (4), keyway (5) have been seted up in the outside of worm (3), the inside of slip cap (4) is provided with flat key (6) that cooperation keyway (5) used.
2. The speed reducer with overload protection structure according to claim 1, wherein: one end of the sliding sleeve (4) is fixedly connected with a permanent magnet (7), and one side, far away from the sliding sleeve (4), of the permanent magnet (7) is fixedly connected with a spline (8).
3. The speed reducer with overload protection structure according to claim 1, wherein: the permanent magnet type speed reducer is characterized in that an electromagnet (10) of an annular structure is fixedly connected to one side of the inside of the speed reducer body (1) and one side of the permanent magnet (7), a rotating connecting plate (11) is rotatably connected to one side of the inside of the speed reducer body (1) and the inside of the electromagnet (10), a matching groove (12) is formed in the rotating connecting plate (11), and the matching groove (12) is matched with a spline (8).
4. The speed reducer with overload protection structure according to claim 1, wherein: the speed reducer is characterized in that a rotating ring (13) is rotatably connected to the inside of the speed reducer body (1) and below the worm (3), a worm wheel (14) is fixedly connected to the outer side of the rotating ring (13), and the worm wheel (14) is meshed with the worm (3).
5. The speed reducer with overload protection structure according to claim 1, wherein: the top fixedly connected with controller (15) of speed reducer body (1), the one end of worm (3) extends to the outside of speed reducer body (1) and fixedly connected with rotation speed sensor (16), electro-magnet (10) and rotation speed sensor (16) all with be connected with controller (15) meshing through the wire.
6. The speed reducer with overload protection structure according to claim 1, wherein: the outer side of the speed reducer body (1) is connected with an asynchronous motor (9) through a screw, a connecting sleeve is arranged on the outer side of the rotating connecting plate (11), and the output end of the asynchronous motor (9) is connected with the rotating connecting plate (11) through the connecting sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321093039.3U CN219866123U (en) | 2023-05-09 | 2023-05-09 | Speed reducer with overload protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321093039.3U CN219866123U (en) | 2023-05-09 | 2023-05-09 | Speed reducer with overload protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219866123U true CN219866123U (en) | 2023-10-20 |
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ID=88333696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321093039.3U Active CN219866123U (en) | 2023-05-09 | 2023-05-09 | Speed reducer with overload protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219866123U (en) |
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2023
- 2023-05-09 CN CN202321093039.3U patent/CN219866123U/en active Active
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