CN115864729B - Overload-prevention planetary gear motor - Google Patents
Overload-prevention planetary gear motor Download PDFInfo
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- CN115864729B CN115864729B CN202211583187.3A CN202211583187A CN115864729B CN 115864729 B CN115864729 B CN 115864729B CN 202211583187 A CN202211583187 A CN 202211583187A CN 115864729 B CN115864729 B CN 115864729B
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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Abstract
The invention discloses an overload prevention planetary gear motor, which comprises: the planetary gear comprises a driving motor, a planetary gear assembly and a connecting assembly; one end of the planet wheel assembly is connected with a driving gear of the driving motor, the other end of the planet wheel assembly is connected with the connecting assembly, and an overload prevention planet wheel is arranged in the planet wheel assembly. Through the design of above-mentioned structure, prevent that overload planet wheel can separate and rotate in step with driving gear to avoid the inside condition of breaking teeth that appears of planet wheel subassembly, protection motor avoids the motor overload to burn out simultaneously.
Description
Technical Field
The invention relates to the technical field of high-speed precise gear transmission devices, in particular to an overload prevention planetary gear motor.
Background
At present, a client of a gearbox motor on the market often has overload use conditions in the installation process, when the overload conditions exist, the moment is too large, and when the overload conditions exceed the torque allowed to be used by the gearbox, the phenomenon of tooth breakage of gears in the gearbox can occur, so that the gearbox is damaged and fails; when in overload use, the motor overload current is too large, and the motor can be burnt out after long-time overload use, so that the motor of the gearbox can be damaged and disabled; in addition, some customers can habitually reversely rotate the output shaft from the output shaft end of the gear box, when the number of stages is large and the speed reduction ratio is large, the reverse rotation torque can be particularly large, and the damage of the gears in the gear box can be caused. Therefore, how to avoid damage to the gears and the motor when the gearbox is overloaded is a technical problem to be solved by the invention. Therefore, there is a need to provide an overload prevention planetary reduction motor, which at least partially solves the problems of the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides an overload prevention planetary reduction motor, including: the planetary gear comprises a driving motor, a planetary gear assembly and a connecting assembly; one end of the planetary gear assembly is connected with a driving gear of the driving motor, the other end of the planetary gear assembly is connected with the connecting assembly, and an overload prevention planetary gear is arranged in the planetary gear assembly;
the connecting component comprises a cover plate, an output shaft and a bearing; the bearing is arranged in the cover plate and sleeved on the output shaft, the output shaft is connected with the cover plate through the bearing, one end of the output shaft is connected with the planetary gear assembly, and the other end of the output shaft is connected with the driving equipment;
the planetary gear assembly comprises a bottom plate, a gear cylinder, an input planetary gear, the overload prevention planetary gear and an output planetary gear; the bottom plate is arranged at one end of the gear cylinder, the other end of the gear cylinder is connected with the cover plate, teeth are arranged on the inner wall of the gear cylinder, the driving gear penetrates through the bottom plate and extends into the gear cylinder, the input planetary gear is connected with the driving gear, the output planetary gear is connected with the input planetary gear through the overload prevention planetary gear, and the output shaft extends into the gear cylinder and is connected with the output planetary gear;
the input planetary gear comprises an input planetary carrier, at least three groups of input planetary gears and an input sun gear; the input planetary gears and the input sun gears are respectively positioned at two sides of the input planetary carrier, the input planetary gears are connected with the input planetary carrier through shafts, the driving gears are positioned among three groups of input planetary gears, the driving gears are meshed with the input planetary gears, the input planetary gears are meshed with teeth of the gear cylinder, and the input sun gears are connected with the overload prevention planetary gears;
the anti-overload planet gear comprises an anti-overload planet carrier, at least three groups of anti-overload planet gears and an anti-overload sun gear, the anti-overload sun gear and the anti-overload planet gears are respectively positioned at two sides of the anti-overload planet carrier, the anti-overload planet gears are connected with the anti-overload planet carrier through shafts, the input sun gear is positioned among the three groups of anti-overload planet gears, the input sun gear is meshed with the anti-overload planet gears, the anti-overload planet gears are meshed with teeth of the gear cylinder, a containing groove is formed in the anti-overload planet carrier, at least three clamping grooves are uniformly formed in the side wall of the containing groove, an embedded block is arranged at one end of the anti-overload sun gear, at least three groups of clamping blocks are arranged on the side wall of the embedded block, the embedded block is adaptive to the containing groove, the clamping blocks are adaptive to the clamping grooves, the embedded block is an elastic piece, a movable groove is formed in the embedded block, and the movable groove is adaptive to the position of the clamping block, and the anti-overload planet gear is connected with the output planet gear;
the output planet gears comprise an output planet carrier and at least three groups of output planet gears, the output planet gears are connected with the output planet carrier through shafts, the overload prevention sun gear is positioned among the three groups of output planet gears, the overload prevention sun gear is meshed with the output planet gears, the output planet gears are meshed with teeth of the gear cylinder, and the output planet carrier is connected with the output shaft;
the output planet carrier is provided with a reset movable piece, the reset movable piece is positioned among three groups of output planet gears of the output planet wheel, and the reset movable piece comprises a positioning box, a sliding block, a limiting support, a connecting rod, a fixed sleeve and a reset piece; the locating box is arranged on the output planet carrier, the limiting support is arranged in the locating box, the limiting support comprises a limiting section and a sliding section, the diameter of the sliding section is smaller than that of the limiting section, the sliding block and the resetting piece are all sleeved on the sliding section, the end part of the limiting section is in butt joint with one end of the sliding block, the other end of the sliding block is connected with the inner wall of the locating box through the resetting piece, the fixing sleeve is sleeved on the end part of the overload-preventing sun gear, one end of the connecting rod is connected with the sliding block through a shaft, and the other end of the connecting rod is connected with the fixing sleeve through a shaft.
Preferably, the side wall of the accommodating groove, the side wall of the clamping groove, the side wall of the embedded block and the side wall of the clamping block are arc-shaped.
Preferably, an auxiliary separating device is arranged at the bottom of the embedded block, and penetrates through the overload prevention planet carrier to be movably connected with the end part of the input sun gear, and comprises a mounting cylinder, a fixing head, a spring, an upper clamping head and a lower clamping head; the lower clamping head is arranged at the end part of the input sun gear and is abutted to one end of the installation cylinder, the upper clamping head and the spring are arranged in the installation cylinder, the side wall of the lower clamping head is movably connected with the bulge on the inner wall of the installation cylinder, one end of the upper clamping head is movably connected with the lower clamping head, the other end of the upper clamping head is connected with the fixing head through the spring, and the fixing head is connected with the embedded block.
Preferably, the end part of the upper clamping head and the end part of the lower clamping head are both annular and provided with teeth with slopes, one end of each tooth is provided with a slope, the side wall of the upper clamping head is provided with a groove, the side wall of the groove is an inclined surface, the width of the bulge of the inner wall of the mounting cylinder is smaller than that of the groove, and the bulge of the inner wall of the mounting cylinder is movably connected with the groove.
Compared with the prior art, the invention at least comprises the following beneficial effects:
when the speed reducing motor is used, the driving equipment is connected with the connecting component, the driving motor is started during operation, the driving gear of the driving motor drives the planetary gear component to rotate, the planetary gear component simultaneously transmits rotation to the driving equipment through the connecting component, thereby realizing a driving function, when the load of the driving equipment is overloaded, the driving equipment gives the torque increase of the connecting component, the large torque of the connecting component can force the overload-preventing planetary gear in the planetary gear component to release the connection with the driving gear, thereby realizing the connection between the disconnection driving gear and the planetary gear component under the condition that the driving motor is not stopped, preventing the overload of the motor from occurring, simultaneously, because the overload-preventing planetary gear is disconnected with the driving gear, the planetary gear component after disconnection can synchronously rotate with the driving equipment, thereby avoiding the damage to the gear, and through the design of the structure, the overload-preventing planetary gear can be separated from the driving gear and synchronously rotate with the driving equipment, thereby avoiding the condition that the broken teeth appear in the planetary gear component, and simultaneously protecting the motor from being burnt out.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
fig. 1 is an exploded view of an overload prevention planetary reduction motor according to the present invention.
Fig. 2 is a schematic structural diagram of the overload prevention planetary gear in fig. 1.
Fig. 3 is a cross-sectional view (top view) of the overload prevention planet of fig. 1.
Fig. 4 is a schematic cross-sectional view of a second embodiment of the overload prevention planetary reduction motor according to the present invention.
Fig. 5 is a schematic structural diagram of a resetting moving part in the overload prevention planetary gear motor.
Fig. 6 is a schematic structural diagram of a resetting moving part in the overload prevention planetary gear motor.
Fig. 7 is a schematic diagram of the movement of the reset moving member in the overload prevention planetary gear motor according to the present invention.
Fig. 8 is a schematic cross-sectional view of a third embodiment of an overload prevention planetary reduction motor according to the present invention.
Fig. 9 is an exploded view of an auxiliary separating device in an overload prevention planetary reduction motor according to the present invention.
Fig. 10 is a partial enlarged view of a lower chuck of an auxiliary separating device in an overload prevention planetary reduction motor according to the present invention.
Fig. 11 is a schematic diagram showing connection between the chuck and the protrusion on the auxiliary separating device in the overload prevention planetary gear motor.
In the figure: 1 drive motor, 11 drive gear, 2 planetary gear assembly, 21 bottom plate, 22 gear cylinder, 3 connection assembly, 31 cover plate, 32 output shaft, 33 bearing, 4 input planetary gear, 41 input planetary carrier, 42 input planetary gear, 43 input sun gear, 5 overload prevention planetary gear, 51 overload prevention planetary carrier, 52 overload prevention planetary gear, 53 overload prevention sun gear, 54 insert block, 6 output planetary gear, 61 output planetary carrier, 62 output planetary gear, 7 reset movable piece, 71 positioning box, 72 slide block, 73 limit pillar, 731 limit section, 732 slide section, 74 connecting rod, 75 fixed sleeve, 76 reset piece, 8 auxiliary separation device, 81 mounting cylinder, 811 protrusion, 82 fixed head, 83 spring, 84 upper chuck, 841 groove, 85 lower chuck.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1 to 11, the present invention provides an overload prevention planetary reduction motor, comprising: the driving motor 1, the planetary gear assembly 2 and the connecting assembly 3; one end of the planetary gear assembly 2 is connected with a driving gear 11 of the driving motor 1, the other end of the planetary gear assembly 2 is connected with the connecting assembly 3, and an anti-overload planetary gear 5 is arranged in the planetary gear assembly 2.
The technical scheme has the working principle and beneficial effects that: when the speed reducing motor is used, the driving equipment is connected with the connecting component 3, the driving motor 1 is started in operation, the driving gear 11 of the driving motor 1 drives the planetary gear component 2 to rotate, meanwhile, the planetary gear component 2 transmits rotation to the driving equipment through the connecting component 3, thereby realizing a driving function, when the load of the driving equipment is overloaded, the driving equipment gives the torque of the connecting component 3 to increase, the large torque of the connecting component 3 can force the overload preventing planetary gear 5 in the planetary gear component 2 to release the connection with the driving gear 11, thereby disconnecting the connection between the driving gear 11 and the planetary gear component 2 under the condition that the driving motor 1 does not stop, further realizing the condition of preventing motor overload, simultaneously, the disconnected planetary gear component 2 can synchronously rotate with the driving equipment, thereby avoiding damage to the gears, the overload preventing planetary gear 5 can be separated from the driving gear 11 and synchronously rotate with the driving equipment, thereby avoiding the condition of tooth breakage in the assembly 2, and simultaneously protecting the motor from being burnt.
In a first embodiment, the connection assembly 3 comprises a cover plate 31, an output shaft 32 and a bearing 33; the bearing 33 is disposed in the cover plate 31 and sleeved on the output shaft 32, the output shaft 32 is connected with the cover plate 31 through the bearing 33, one end of the output shaft 32 is connected with the planetary gear assembly 2, and the other end is connected with a driving device. The planetary gear assembly 2 comprises a bottom plate 21, a gear cylinder 22, an input planetary gear 4, the overload prevention planetary gear 5 and an output planetary gear 6; the bottom plate 21 is arranged at one end of the gear cylinder 22, the other end of the gear cylinder 22 is connected with the cover plate 31, teeth are arranged on the inner wall of the gear cylinder 22, the driving gear 11 penetrates through the bottom plate 21 and extends into the gear cylinder 22, the input planet wheel 4 is connected with the driving gear 11, the output planet wheel 6 is connected with the input planet wheel 4 through the overload prevention planet wheel 5, and the output shaft 32 extends into the gear cylinder 22 and is connected with the output planet wheel 6. The input planet wheels 4 comprise an input planet carrier 41, at least three sets of input planet gears 42 and an input sun gear 43; the input planetary gears 42 and the input sun gear 43 are respectively located at both sides of the input carrier 41, and the input planetary gears 42 are connected with the input carrier 41 by a shaft, the drive gear 11 is located between three sets of the input planetary gears 42, and the drive gear 11 is meshed with the input planetary gears 42, the input planetary gears 42 are meshed with teeth of the gear drum 22, and the input sun gear 43 is connected with the overload prevention planetary gears 5. The anti-overload planet wheel 5 comprises an anti-overload planet carrier 51, at least three groups of anti-overload planet gears 52 and an anti-overload sun gear 53, the anti-overload sun gear 53 and the anti-overload planet gears 52 are respectively located on two sides of the anti-overload planet carrier 51, the anti-overload planet gears 52 are connected with the anti-overload planet carrier 51 through shafts, the input sun gear 43 is located between the three groups of anti-overload planet gears 52, the input sun gear 43 is meshed with the anti-overload planet gears 52, the anti-overload planet gears 52 are meshed with teeth of the gear cylinder 22, accommodating grooves are formed in the anti-overload planet carrier 51, at least three clamping grooves are uniformly formed in the side walls of the accommodating grooves, an embedded block 54 is arranged at one end of the anti-overload sun gear 53, at least three groups of clamping blocks are arranged on the side walls of the embedded block 54, the embedded block 54 is adaptive to the accommodating grooves, the clamping blocks are arranged in the clamping grooves, the embedded block 54 is an elastic piece, and the embedded block 54 is arranged on the elastic piece, and is adaptive to the sun gear 53, and the anti-overload planet wheel is connected with the movable groove 6. The output planet wheel 6 comprises an output planet carrier 61 and at least three sets of output planet gears 62, the output planet gears 62 are connected with the output planet carrier 61 in a shaft way, the overload prevention sun gear 53 is positioned between the three sets of output planet gears 62, the overload prevention sun gear 53 is meshed with the output planet gears 62, the output planet gears 62 are meshed with teeth of the gear cylinder 22, and the output planet carrier 61 is connected with the output shaft 32.
The technical scheme has the working principle and beneficial effects that: when the driving motor 1 is started, the driving gear 11 drives the input planet gear 42 to rotate, the input planet gear 42 rotates around the driving gear 11 and simultaneously is meshed with teeth on the inner wall of the gear barrel 22, the input planet gear 42 rotates along the inner wall of the gear barrel 22, the input planet carrier 41 is driven to rotate when the input planet gear 42 rotates, the input sun gear 43 drives the overload prevention planet gear 52 to rotate, the overload prevention planet gear 52 drives the overload prevention sun gear 53 to rotate while rotating along the inner wall of the gear barrel 22, the overload prevention sun gear 53 drives the output shaft 32 to rotate through the output planet gear 62, and then drives the driving device to rotate, when the driving device is overloaded, the overload prevention planet carrier 51 still continues to rotate, but the torque transmitted to the overload prevention sun gear 53 by the driving device is overlarge, so that the overload prevention sun gear 53 cannot rotate, at the moment, the clamping blocks are extruded by the clamping grooves, the clamping blocks are deformed through the moving grooves, the overload prevention planet carrier 51 rotates relative to the embedding blocks 54, the motor 1 is not transmitted to the overload prevention sun gear 53, and accordingly the overload prevention planet carrier is prevented from being embedded into the input planet carrier 4, and the overload prevention planet carrier 4 is prevented from being damaged when the overload driving device is not in the opposite directions, and the overload prevention planet carrier is damaged, and the input carrier 4 is prevented from being rotated relative to the input carrier 4. The motor is decelerated to a conventional technical means of the decelerator by adjusting the sizes of the gears engaged with each other, which will not be described herein.
In the second embodiment, the side walls of the accommodating groove, the clamping groove, the embedded block 54 and the clamping block are all arc-shaped. The output planet carrier 61 is provided with a reset movable piece 7, the reset movable piece 7 is positioned among three groups of output planet gears 62, and the reset movable piece 7 comprises a positioning box 71, a sliding block 72, a limiting support 73, a connecting rod 74, a fixed sleeve 75 and a reset piece 76; the positioning box 71 is arranged on the output planet carrier 61, the limiting support 73 is arranged in the positioning box 71, the limiting support 73 comprises a limiting section 731 and a sliding section 732, the diameter of the sliding section 732 is smaller than that of the limiting section 731, the sliding block 72 and the resetting piece 76 are sleeved on the sliding section 732, the end of the limiting section 731 is abutted to one end of the sliding block 72, the other end of the sliding block 72 is connected with the inner wall of the positioning box 71 through the resetting piece 76, the fixing sleeve 75 is sleeved on the end of the overload prevention sun gear 53, one end of the connecting rod 74 is connected with the sliding block 72 in a shaft mode, and the other end of the connecting rod 74 is connected with the fixing sleeve 75 in a shaft mode.
The technical scheme has the working principle and beneficial effects that: in the first embodiment, the overload prevention planetary gear 5 is relatively slid with the overload prevention planetary carrier 51 through the deformation of the embedded block 54, so that the overload prevention effect of the overload prevention planetary gear 5 is achieved, but the first embodiment has strong dependence on the property of the embedded block 54, firstly, the first embodiment needs to ensure that the embedded block is an elastic piece, and the maximum torque of the overload prevention planetary gear 5 depends on the friction force between the clamping block and the clamping groove, under the condition of unattended driving of the motor 1, once the overload prevention planetary gear 5 is started and not stopped in time, the service life of the embedded block 54 is greatly reduced, but the production cost of the first embodiment is lower. Meanwhile, the present invention provides a second embodiment, in which the requirements for the material and the self-properties of the insert block 54 are low, wherein the side walls of the accommodating groove, the side walls of the clamping groove, the side walls of the insert block 54 and the side walls of the clamping block are arc-shaped, i.e. the cross sections are arc-shaped, at this time, when the overload prevention planetary gear 5 is started, the arc-shaped surfaces of the insert block 54 and the clamping block facilitate the insert block 54 to slide out of the accommodating groove, and the arc-shaped surfaces enable the insert block 54 to reduce deformation when being inserted and slid out, thereby prolonging the service life.
When the overload prevention planetary gear 5 rotates normally, the fixed sleeve 75 is sleeved on the end portion of the overload prevention sun gear 53, and the reset piece 76 applies thrust to the sliding block 72 at the moment, so that the sliding block 72 can be abutted against the limiting section 731 and is abutted against the fixed sleeve 75 through the connecting rod 74, so that pressure is provided for the overload prevention sun gear 53, and the overload prevention sun gear 53 can be connected with the overload prevention planetary carrier 51 for torque transmission. The pressure that the reset member 76 can provide to the overload prevention sun gear 53 is the maximum torque of the overload prevention planet 5.
When the overload prevention planetary gear 5 is started, the overload prevention planetary carrier 51 continuously rotates, and the embedded block 54 is jacked up by the overload prevention planetary carrier 51 along the arc-shaped surface along with the rotation of the overload prevention planetary carrier, so that the overload prevention sun gear 53 pushes the fixed sleeve 75, and the sliding block 72 is pushed by the connecting rod 74 to press the reset piece 76, so that the transmission between the overload prevention planetary gear 5 and the input planetary gear 4 is disconnected.
When the overload prevention planetary 5 is reset, the reset member 76 pushes the slider 72 to reset, and thus resets the overload prevention sun gear 53. So that the transmission is continued.
Through the above-mentioned structural design, the slidingtype in the first embodiment is to deviating from the formula and is converted to make the material property requirement to the embedded block 54 reduce, and reduced the fatigue that the embedded block 54 warp repeatedly and cause, thereby improved the life of embedded block 54, can play the effect of supporting and resetting for the overload prevention planet wheel 5 of deviating from through the movable part that resets 7, and make the maximum torque of overload prevention planet wheel 5 can obtain the regulation through the regulation to the reset part 76, make the application torque scope of overload prevention planet wheel 5 increase.
In the third embodiment, an auxiliary separating device 8 is disposed at the bottom of the insert block 54, the auxiliary separating device 8 penetrates through the overload prevention planetary carrier 51 and is movably connected with the end of the input sun gear 43, and the auxiliary separating device 8 includes a mounting cylinder 81, a fixing head 82, a spring 83, an upper chuck 84 and a lower chuck 85; the lower chuck 85 is disposed at the end of the input sun gear 43 and is abutted to one end of the mounting cylinder 81, the upper chuck 84 and the spring 83 are disposed in the mounting cylinder 81, the side wall of the lower chuck 85 is movably connected with a protrusion 811 on the inner wall of the mounting cylinder 81, one end of the upper chuck 84 is movably connected with the lower chuck 85, the other end of the upper chuck 84 is connected with the fixing head 82 through the spring 83, and the fixing head 82 is connected with the embedded block 54. The end of the upper chuck 84 and the end of the lower chuck 85 are both annular teeth with slopes, one end of each tooth has a slope, a groove 841 is formed in the side wall of the upper chuck 84, the side wall of the groove 841 is an inclined surface, the width of a protrusion 811 on the inner wall of the mounting cylinder 81 is smaller than that of the groove 841, and the protrusion 811 on the inner wall of the mounting cylinder 81 is movably connected with the groove 841.
The technical scheme has the working principle and beneficial effects that: in the second embodiment, although the arcuate surface may facilitate the removal of the insert 54, the removal of the insert 54 is relatively difficult if a rigid material is used, and thus the present invention provides a third embodiment in which an auxiliary separating device 8 is added to the bottom of the insert 54 to assist the removal of the insert 54 from the receiving groove and to sound the operator when the overload prevention planetary 5 is activated.
When the overload prevention planetary gear 5 is not started, the upper clamping head 84 and the lower clamping head 85 are in a meshed state, the teeth on the upper clamping head 84 and the lower clamping head 85 are in annular arrangement, each tooth has a gradient, the side faces of the teeth are perpendicular to the end faces of the upper clamping head 84 and the lower clamping head 85, so that the upper clamping head 84 can be clamped with the lower clamping head 5, the slope faces of the teeth of the upper clamping head 84 are abutted with the slope faces of the teeth of the lower clamping head 85, and the end faces of the teeth of the upper clamping head 84 are abutted with the end faces of the teeth of the lower clamping head 85.
When the overload prevention planetary gear 5 is started, when the embedded block 54 is not completely separated from the overload prevention planetary carrier 51, the embedded block 54 rotates at a certain angle relative to the accommodating groove along with the separation of the embedded block 54 and the bottom surface of the accommodating groove due to the influence of the arc surface, when the embedded block 54 rotates at an angle, the embedded block can screw the spring 83 through the fixing head 82, so that the upper clamping head 84 is driven to rotate with the lower clamping head 85, the spring 83 is in a stressed state and compresses along with the screwing of the spring 83, and simultaneously, when the upper clamping head 84 rotates relative to the lower clamping head 85, the teeth of the upper clamping head 84 relatively slide along the slope surface, because the lower clamping head 85 is fixed on the input sun gear 43 through the screw, the upper clamping head 84 moves upwards along the slope surface of the teeth of the lower clamping head 85 and further compresses the spring 83, so that the spring 83 provides thrust for the embedded block 54 to achieve the effect of assisting the separation of the embedded block 54, after the embedded block 54 is separated, the elastic force of the spring 83 is released, when the embedded block 54 resets, the upper clamping head 84 is compressed again and simultaneously pushes the upper clamping head 84 downwards, so that the upper clamping head 84 is meshed with the lower clamping head 85 again with the lower clamping head 85, and the lower clamping head 85 continuously rotates along with the slope surface of the impact of the upper clamping head 85, and the lower clamping head 85 continuously rotates due to the fact that the upper and the lower clamping head 85 is continuously driven by a user.
When the overload prevention planetary gear 5 is reset to drive, the groove 841 on the side wall of the upper clamping head 84 can perform a limiting function with the protrusion 811, meanwhile, because the width of the protrusion 811 is smaller than that of the groove 841, when the spring 83 is torsionally compressed, the protrusion 811 and the groove 841 can also collide to make a sound, and meanwhile, because the side wall of the groove 811 is an inclined plane, the upper clamping head 4 can rotate while moving upwards.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (4)
1. An overload prevention planetary reduction motor, comprising: the planetary gear type transmission device comprises a driving motor (1), a planetary gear assembly (2) and a connecting assembly (3); one end of the planetary gear assembly (2) is connected with a driving gear (11) of the driving motor (1), the other end of the planetary gear assembly (2) is connected with the connecting assembly (3), and an overload prevention planetary gear (5) is arranged in the planetary gear assembly (2);
the connecting assembly (3) comprises a cover plate (31), an output shaft (32) and a bearing (33); the bearing (33) is arranged in the cover plate (31) and sleeved on the output shaft (32), the output shaft (32) is connected with the cover plate (31) through the bearing (33), one end of the output shaft (32) is connected with the planet wheel assembly (2), and the other end of the output shaft is connected with a driving device;
the planetary gear assembly (2) comprises a bottom plate (21), a gear cylinder (22), an input planetary gear (4), the overload prevention planetary gear (5) and an output planetary gear (6); the bottom plate (21) is arranged at one end of the gear cylinder (22), the other end of the gear cylinder (22) is connected with the cover plate (31), teeth are arranged on the inner wall of the gear cylinder (22), the driving gear (11) penetrates through the bottom plate (21) and extends into the gear cylinder (22), the input planet wheel (4) is connected with the driving gear (11), the output planet wheel (6) is connected with the input planet wheel (4) through the overload prevention planet wheel (5), and the output shaft (32) extends into the gear cylinder (22) to be connected with the output planet wheel (6);
the input planet wheel (4) comprises an input planet carrier (41), at least three groups of input planet gears (42) and an input sun gear (43); the input planetary gears (42) and the input sun gear (43) are respectively positioned at two sides of the input planetary carrier (41), the input planetary gears (42) are connected with the input planetary carrier (41) through shafts, the driving gear (11) is positioned among three groups of the input planetary gears (42), the driving gear (11) is meshed with the input planetary gears (42), the input planetary gears (42) are meshed with teeth of the gear cylinder (22), and the input sun gear (43) is connected with the overload prevention planetary gears (5);
the overload prevention planetary gear (5) comprises an overload prevention planetary gear carrier (51), at least three groups of overload prevention planetary gears (52) and an overload prevention sun gear (53), wherein the overload prevention sun gear (53) and the overload prevention planetary gears (52) are respectively positioned on two sides of the overload prevention planetary gear carrier (51), the overload prevention planetary gears (52) are connected with the overload prevention planetary gear carrier (51) through shafts, the input sun gear (43) is positioned between the three groups of overload prevention planetary gears (52), the input sun gear (43) is meshed with the overload prevention planetary gears (52), the overload prevention planetary gears (52) are meshed with teeth of the gear cylinder (22), the overload prevention planetary gear carrier (51) is provided with accommodating grooves, the side walls of the accommodating grooves are uniformly provided with at least three clamping grooves, one end of the overload prevention sun gear (53) is provided with a block (54), the side walls of the embedding blocks (54) are provided with at least three groups of clamping blocks, the embedding blocks (54) are meshed with the clamping grooves, the embedding blocks are meshed with the clamping blocks, the embedding blocks (54) are meshed with the clamping blocks, the embedding blocks are meshed with the clamping blocks, the clamping blocks are meshed with the clamping blocks, and the clamping blocks are respectively, the overload prevention sun gear (53) is connected with the output planet gear (6);
the output planet wheel (6) comprises an output planet carrier (61) and at least three groups of output planet gears (62), the output planet gears (62) are connected with the output planet carrier (61) in a shaft mode, the overload prevention sun gear (53) is located among the three groups of output planet gears (62), the overload prevention sun gear (53) is meshed with the output planet gears (62), the output planet gears (62) are meshed with teeth of the gear cylinder (22), and the output planet carrier (61) is connected with the output shaft (32);
the output planet carrier (61) is provided with a reset movable part (7), the reset movable part (7) is positioned among three groups of output planet gears (62), and the reset movable part (7) comprises a positioning box (71), a sliding block (72), a limiting support (73), a connecting rod (74), a fixed sleeve (75) and a reset part (76); the positioning box (71) is arranged on the output planet carrier (61), the limiting support column (73) is arranged in the positioning box (71), the limiting support column (73) comprises a limiting section (731) and a sliding section (732), the diameter of the sliding section (732) is smaller than that of the limiting section (731), the sliding section (732) is sleeved with the sliding section (72) and the end of the limiting section (731) is abutted to one end of the sliding section (72), the other end of the sliding section (72) is connected with the inner wall of the positioning box (71) through the resetting piece (76), the end of the overload-preventing sun gear (53) is sleeved with the fixing sleeve (75), one end of the connecting rod (74) is connected with the sliding section (72) in a shaft mode, and the other end of the connecting rod (74) is connected with the fixing sleeve (75) in a shaft mode.
2. The overload prevention planetary gear motor according to claim 1, wherein the side walls of the receiving groove, the side walls of the clamping groove, the side walls of the embedded block (54) and the side walls of the clamping block are arc-shaped.
3. The overload prevention planetary reduction motor according to claim 2, wherein an auxiliary separating device (8) is arranged at the bottom of the embedded block (54), the auxiliary separating device (8) penetrates through the overload prevention planetary carrier (51) to be movably connected with the end part of the input sun gear (43), and the auxiliary separating device (8) comprises a mounting cylinder (81), a fixing head (82), a spring (83), an upper clamping head (84) and a lower clamping head (85); the lower clamping head (85) is arranged at the end part of the input sun gear (43) and is in butt joint with one end of the installation cylinder (81), the upper clamping head (84) and the spring (83) are arranged in the installation cylinder (81), the side wall of the lower clamping head (85) is movably connected with a bulge (811) on the inner wall of the installation cylinder (81), one end of the upper clamping head (84) is movably connected with the lower clamping head (85), the other end of the upper clamping head (84) is connected with the fixed head (82) through the spring (83), and the fixed head (82) is connected with the embedded block (54).
4. The overload prevention planetary gear motor according to claim 3, wherein the end of the upper chuck (84) and the end of the lower chuck (85) are both provided with teeth having slopes in a ring shape, one end of each tooth has a slope, a groove (841) is provided on a side wall of the upper chuck (84), the side wall of the groove (841) is an inclined surface, and a width of a protrusion (811) of an inner wall of the mounting cylinder (81) is smaller than a width of the groove (841), and the protrusion (811) of the inner wall of the mounting cylinder (81) is movably connected with the groove (841).
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| CN202211583187.3A CN115864729B (en) | 2022-12-09 | 2022-12-09 | Overload-prevention planetary gear motor |
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