CN115987015A - Brushless DC speed reducing motor - Google Patents
Brushless DC speed reducing motor Download PDFInfo
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- CN115987015A CN115987015A CN202211614844.6A CN202211614844A CN115987015A CN 115987015 A CN115987015 A CN 115987015A CN 202211614844 A CN202211614844 A CN 202211614844A CN 115987015 A CN115987015 A CN 115987015A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The invention discloses a brushless DC speed reducing motor, comprising: the direct current brushless motor, gear assembly, output subassembly, apron and intercommunication subassembly. The communicating component is used for line connection and sealing of the rear end of the direct current brushless motor, so that the rear end of the speed reducing motor has good sealing performance and is conveniently detachably connected with a power line, the gear component is used for transmission and speed reduction of the direct current brushless motor, so that the speed reducing motor can obtain larger torque, the output component is used for transmitting the torque to output equipment, the cover plate covers the gear component and is used for sealing the inside of the gear component and plays a role of supporting and fixing the output component, the cover plate is matched with the screw through the cylindrical pin, a connection mode mainly based on pin connection is realized, the use of the screw is reduced, and the complexity of the front end structure of the speed reducing motor is further simplified.
Description
Technical Field
The invention relates to the technical field of high-speed precise gear transmission devices, in particular to a brushless direct current speed reducing motor.
Background
The front end mounting structure of the phi 22 gear box motor of the medical instrument on the market at present needs a plurality of screws for fixed mounting, so that the front end structure is complicated, the conventional terminal structure at the rear end of the motor is low in reliability and poor in sealing performance, the performance of the motor is reduced after the high-temperature sterilization and the ion sterilization are carried out on the instrument, and the instrument with the poor sealing performance even can cause the sterilized instrument not to be reused. Therefore, how to simplify the structure of the front end and the rear end of the medical instrument and how to keep the terminals at the rear end of the motor to have sufficient reliable connectivity and tightness are the technical problems to be solved by the invention. Therefore, there is a need for a brushless dc geared motor that at least partially solves the problems of the prior art.
Disclosure of Invention
In this summary, concepts in a simplified form are introduced that are further described in the detailed description. This summary of the invention is not intended to identify key features or 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 a brushless dc geared motor comprising: the direct current brushless motor, the gear assembly, the output assembly, the cover plate and the communicating assembly;
the communication component is arranged at one end of the DC brushless motor and is used for being detachably connected with a power line;
the gear assembly is arranged at the other end of the DC brushless motor,
the output assembly is arranged on the cover plate and movably connected with the gear assembly, and the output assembly is used for being connected with output equipment;
the cover plate is connected with the gear assembly through a plurality of cylindrical pins and a plurality of screws.
Preferably, the gear assembly comprises an internal gear drum, a bottom plate and a planetary gear set; the planetary gear set is arranged in the conveying internal gear cylinder, the planetary gear set is meshed with teeth on the inner wall of the internal gear cylinder, the bottom plate is arranged at one end of the internal gear cylinder, a driving shaft of the direct-current brushless motor penetrates through the bottom plate to extend into the internal gear cylinder and is meshed with the planetary gear set through a motor gear, the cover plate is connected with the other end of the internal gear cylinder through the cylindrical pin and the screw, and the output assembly is connected with the planetary gear set.
Preferably, the planetary wheel set comprises at least one transmission wheel set and an output wheel set; the transmission wheel set comprises a planet carrier, a sun gear and at least three planet gears; the planetary gear pass through the gear shaft with one side of planet carrier is connected, sun gear with the opposite side of planet carrier is connected, motor gear is located threely between the planetary gear, and with three the planetary gear meshes, planetary gear with the inner wall meshing of internal gear section of thick bamboo, output wheelset with the sun gear meshes, and output assembly with output wheelset is connected.
Preferably, the output wheel set comprises an output planet carrier and at least three output planet wheels; the output planet wheel passes through the gear shaft with the output planet carrier is connected, sun gear is located threely between the output planet wheel and intermeshing, the output planet wheel with the inner wall meshing of internal gear section of thick bamboo, the output subassembly with the output planet carrier is connected.
Preferably, the output assembly comprises a ball bearing and an output shaft; one end of the output shaft is connected with the output planet carrier, the other end of the output shaft is connected with output equipment, the ball bearing is sleeved outside the output shaft, and the outer wall of the ball bearing is connected with the cover plate.
Preferably, the communication assembly comprises at least two support tubes, a PIN PIN circuit board, a plurality of PIN PINs and a motor cover; the PIN needle is arranged on the PIN needle circuit board, the PIN needle penetrates through the motor cover, the PIN needle circuit board is connected with the end portion of the direct current brushless motor through the support tube, the motor cover is arranged at the end portion of the direct current brushless motor, and the direct current brushless motor is electrically connected with the PIN needle.
Preferably, the PIN is provided with a fastening kit, the PIN is connected with the PIN circuit board through the fastening kit, the fastening kit is an elastic piece, and the fastening kit comprises a PIN holding section, a thread section and a work field section; the I-shaped field is connected with the needle holding section through the thread section and is tubular, one end of the PIN needle is positioned in the I-shaped field and is electrically connected with the DC brushless motor, and the other end of the PIN needle penetrates through the thread section and the needle holding section; the thread section and the needle holding section are both tubular, the thread section and the needle holding section have the same inner diameter, the inner diameters of the thread section and the needle holding section are smaller than the diameter of the PIN needle, and the inner diameter of the work area is larger than the diameter of the PIN needle.
Preferably, the outer wall of the thread section is provided with a single circle of threads, the major diameter of the single circle of threads is smaller than the diameter of the circular shape at the two ends of the work area, the needle holding section is provided with an umbrella-shaped bulge, the diameter of the top of the umbrella-shaped bulge is smaller than that of the bottom of the umbrella-shaped bulge, the diameter of the bottom of the umbrella-shaped bulge is larger than the small diameter of the single circle of threads, the elasticity of the work area is smaller than that of the thread section, and the elasticity of the thread section is smaller than that of the needle holding section.
Preferably, the medical sealing device further comprises a front end sealing cover, the inner side wall of the front end sealing cover is connected with the outer wall of the inner gear barrel through the cylindrical pin, permanent magnets are arranged on the inner end face of the front end sealing cover and the end face of the cover plate, and a medical sealing membrane is selectively arranged between the front end sealing cover and the cover plate.
Preferably, the cylindrical pin comprises a sleeve, a spring, a clamping ball and a positioning ball; the joint ball with the locating ball all sets up in the cover pipe, be provided with the locating lever on the locating ball, the spring housing is established on the locating lever, and the one end of spring with the locating ball butt, the other end with joint ball butt, be provided with spherical constant head tank on the sealed inner wall of lid of front end, be provided with the round pin joint groove on the lateral wall of apron, the round pin joint inslot is provided with the joint groove, the lateral wall of an internal gear section of thick bamboo is provided with the round pin and connects the hole, the sleeve pipe runs through the round pin connects the hole and extends to the round pin connects the inslot.
Compared with the prior art, the invention at least comprises the following beneficial effects:
the communicating component is used for line connection and sealing at the rear end of the direct current brushless motor, so that the rear end of the speed reducing motor has good sealing performance and is conveniently detachably connected with a power line, the gear component is used for transmission and speed reduction of the direct current brushless motor, so that the speed reducing motor can obtain larger torque, the output component is used for transmitting the torque to output equipment, the cover plate covers the gear component and is used for sealing the inside of the gear component and plays a role of supporting and fixing the output component, the cover plate is matched with the cylindrical pin and the screw, a connection mode mainly based on pin connection is realized, the use of the screw is reduced, and the complexity of the front end structure of the speed reducing motor is further simplified.
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, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is an exploded view of a brushless dc geared motor according to the present invention.
Fig. 2 is a schematic structural diagram of a fastening kit in the brushless dc geared motor according to the present invention.
Fig. 3 is a front view of a fastening kit in the brushless dc geared motor according to the present invention.
Fig. 4 is a sectional view of the brushless dc gear motor according to the present invention in which a tip end sealing cover is installed (a medical sealing film is not shown).
Fig. 5 is an exploded view of a cylindrical pin in the brushless dc geared motor according to the present invention.
Fig. 6 is a cross-sectional view of a cylindrical pin in the brushless dc geared motor of the present invention.
In the figure: the device comprises a direct current brushless motor 1, a gear assembly 2, an internal gear barrel 21, a bottom plate 22, a transmission wheel set 23, an output wheel set 24, an output assembly 3, a ball bearing 31, an output shaft 32, a cover plate 4, a communication assembly 5, a support column tube 51, a PIN PIN circuit board 52, a PIN PIN 53, a motor cover 54, a cylindrical PIN 6, a sleeve 61, a spring 62, a clamping ball 63, a positioning ball 64, a positioning rod 65, a fastening kit 7, a PIN holding section 71, a thread section 72, a thread section 73, a sealing cover at the front end 8 and a permanent magnet 9.
Detailed Description
The present invention is further described in detail below with reference to the drawings and examples so that those skilled in the art can implement the invention with reference 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 6, the present invention provides a brushless dc geared motor, comprising: the direct current brushless motor 1, the gear assembly 2, the output assembly 3, the cover plate 4 and the communicating assembly 5;
the communicating component 5 is arranged at one end of the brushless DC motor 1 and is used for being detachably connected with a power line;
the gear assembly 2 is arranged at the other end of the dc brushless motor 1,
the output assembly 3 is arranged on the cover plate 4 and movably connected with the gear assembly 2, and the output assembly 3 is used for being connected with output equipment;
the cover plate 4 is connected with the gear assembly 2 through a plurality of cylindrical pins 6 and a plurality of screws.
The working principle and the beneficial effects of the technical scheme are as follows: the communicating component 5 is used for line connection and sealing of the rear end of the direct current brushless motor 1, so that the rear end of the speed reducing motor of the invention can have good sealing performance and is conveniently detachably connected with a power line, the gear component 2 is used for transmission and speed reduction of the direct current brushless motor 1, so that the speed reducing motor of the invention can obtain larger torque, the output component 3 is used for transmitting the torque to output equipment, the cover plate 4 covers the gear component 2 and is used for sealing the inside of the gear component 2 and simultaneously plays a role in supporting and fixing the output component 3, the cover plate 4 is matched with a cylindrical pin 6 and a screw, so that a connection mode mainly based on pin connection is realized, the use of the screw is reduced, and the complexity of the front end structure of the speed reducing motor of the invention is further simplified.
In one embodiment, the gear assembly 2 includes an inner gear drum 21, a bottom plate 22, and a planetary gear set; the planetary gear set is arranged in the conveying internal gear cylinder 21 and is meshed with the teeth on the inner wall of the internal gear cylinder 21, the bottom plate 22 is arranged at one end of the internal gear cylinder 21, the driving shaft of the direct current brushless motor 1 penetrates through the bottom plate 22 and extends into the internal gear cylinder 21 and is meshed with the planetary gear set through a motor gear, the cover plate 4 is connected with the other end of the internal gear cylinder 21 through the cylindrical pin 6 and the screw, and the output component 3 is connected with the planetary gear set. The planetary wheel set comprises at least one transmission wheel set 23 and an output wheel set 24; the transmission wheel set 23 comprises a planet carrier, a sun gear and at least three planet gears; the planetary gear pass through the gear shaft with one side of planet carrier is connected, sun gear with the opposite side of planet carrier is connected, motor gear is located threely between the planetary gear to with three the planetary gear meshes, planetary gear with the inner wall meshing of internal gear section of thick bamboo 21, output wheelset 24 with the sun gear meshing, and output component 3 with output wheelset 24 is connected. The output wheel set 24 comprises an output planet carrier and at least three output planet wheels; the output planetary gears are connected with the output planetary carrier through gear shafts, the sun gears are positioned among the three output planetary gears and are meshed with each other, the output planetary gears are meshed with the inner wall of the inner gear drum 21, and the output assembly 3 is connected with the output planetary carrier. The output assembly 3 comprises a ball bearing 31 and an output shaft 32; one end of the output shaft 32 is connected with the output planet carrier, the other end of the output shaft is connected with output equipment, the ball bearing 31 is sleeved outside the output shaft 32, and the outer wall of the ball bearing 31 is connected with the cover plate 4. The communication component 5 comprises at least two strut tubes 51, a PIN PIN circuit board 52, a plurality of PIN PINs 53 and a motor cover 54; the PIN 53 is disposed on the PIN circuit board 52, and the PIN 53 penetrates the motor cover 54, the PIN circuit board 52 is connected to an end of the dc brushless motor 1 through the pillar tube 51, the motor cover 54 is disposed at an end of the dc brushless motor 1, and the dc brushless motor 1 is electrically connected to the PIN 53.
The working principle and the beneficial effects of the technical scheme are as follows: the conventional technical means that the rotating speed is reduced and the torque is increased by arranging a plurality of transmission wheel sets 23 is a conventional technical means, and the specific principle is not described herein any more, two support pipes 51 in the communicating component 5 of the present invention are used for supporting and positioning the PIN circuit board 52, and meanwhile, when the motor cover 54 covers the end portion of the dc brushless motor 1, two screws on the motor cover 54 penetrate through the inside of the motor cover 54 and penetrate through the support pipes 51 to be connected with the dc brushless motor 1, so that the motor cover 54 is fixed, the end portion of the dc brushless motor 1 is sealed by the motor cover 54, the PIN 53 is fixed on the PIN circuit board 52 and extends to the outside of the motor cover 54, and when the PIN is connected with a power line, the connection between the dc brushless motor 1 and the power supply is realized by the PIN 52.
In this embodiment, 3 sets of transfer wheels 23 are provided so that the load torque can be increased from 2.0Nm to 4.0Nm and the maximum instantaneous torque increased from 3.0Nm to 8.0Nm. Compared with the traditional phi 22 gearbox motor, the bearing capacity, reliability and load service life of the invention are greatly improved, and meanwhile, the empty load noise is reduced along with the increase of the number of the transmission wheel sets 23 (the noise is reduced because the speed reduction ratio is high); the cover plate 4 adopts a pin hole positioning connection mode, so that the installation is more convenient; the rear end of the direct current brushless motor 1 adopts a quick PIN plug-in structure (namely a PIN 53), and the structure has high reliability and good sealing property; the heat-resistant temperature of the invention is increased from 100 ℃ to 134 ℃, the requirements of steam sterilization at high temperature of 130 ℃ and hydrogen peroxide low-temperature ion sterilization are met, and the heat-resistant temperature is increased from 3 groups of original cycles to 30 groups of original cycles for sterilization and disinfection, and the performance of the direct current brushless motor 1 can be maintained without reduction; the brushless DC motor 1, the internal gear drum 21, the cover plate 4, the bottom plate 22 and the motor cover 54 are all made of corrosion-resistant materials, so that the surface corrosion resistance of the brushless DC motor is enhanced.
In one embodiment, a fastening sleeve 7 is arranged on the PIN 53, the PIN 53 is connected with the PIN circuit board 52 through the fastening sleeve 7, the fastening sleeve 7 is an elastic member, and the fastening sleeve 7 comprises a PIN holding section 71, a thread section 72 and an i-shaped section 73; the I-shaped field 73 is connected with the PIN holding section 71 through the threaded section 72, the I-shaped field 73 is tubular, one end of the PIN 53 is located in the I-shaped field 73 and is electrically connected with the DC brushless motor 1, and the other end of the PIN 53 penetrates through the threaded section 72 and the PIN holding section 71; the thread section 72 and the needle holding section 71 are both tubular, the thread section 72 and the needle holding section 71 have the same inner diameter, the inner diameters of the thread section 72 and the needle holding section 71 are smaller than the diameter of the PIN needle 53, and the inner diameter of the I-shaped section 73 is larger than the diameter of the PIN needle 53. The outer wall of the thread section 72 is provided with a single circle of threads, the major diameter of the single circle of threads is smaller than the diameter of the circular shapes at the two ends of the work area 73, an umbrella-shaped bulge is arranged on the needle holding section 71, the diameter of the top of the umbrella-shaped bulge is smaller than that of the bottom of the umbrella-shaped bulge, the diameter of the bottom of the umbrella-shaped bulge is larger than the small diameter of the single circle of threads, the elasticity of the work area 73 is smaller than that of the thread section 72, and the elasticity of the thread section 72 is smaller than that of the needle holding section 71.
The working principle and the beneficial effects of the technical scheme are as follows: the PIN 53 is required to be sleeved with the fastening kit 7 to realize connection, sealing and fixation of the PIN 53 and the PIN circuit board 52, and meanwhile, the PIN 53 and the brushless direct current motor 1 are electrically connected to be hidden and fixed.
When connection is carried out, the tail end of the PIN 53 is electrically connected with the DC brushless motor 1, then the PIN 53 is inserted upwards into the thread section 72 and the PIN holding section 71 from the I-shaped section 73 until the circuit connection point at the tail end of the PIN 53 completely enters the I-shaped section 73, at the time, because the inner diameters of the thread section 72 and the PIN holding section 71 are smaller than the diameter of the PIN 53, the thread section 72 and the PIN holding section 71 are in sealed and fixed connection with the PIN 53, the line connection position of the PIN 53 and the DC brushless motor 1 is positioned in the I-shaped section 73, so that disconnection caused by line-PIN separation due to swinging and the like is prevented, then the PIN 53 with the fastening sleeve 7 is inserted on the PIN circuit board 52, after the PIN 53 passes through the through hole on the PIN 53, the PIN holding section 71 is also inserted into the through hole until the top of the umbrella-shaped bulge abuts against the bottom of the PIN circuit board 52, the umbrella-shaped bulge passes through the through hole 53, the single turn thread of the PIN 72 and the through hole are pressed on the PIN 52 until the top of the PIN 52 abuts against the PIN 52, and the PIN is frequently pushed and the PIN 53, and the PIN is inserted on the PIN 52, and the PIN is clamped on the PIN 52, and the PIN is frequently pushed and the PIN is inserted and the circuit board 53,
when the PIN 53 is rotated, the threaded section 72 can rotate and screw in the through hole along the single-turn thread, and because the threaded section 72 is an elastic member, once the rotation of the PIN 53 is stopped, the threaded section 72 can rotate and reset along the single-turn thread under the action of the elastic force, so that the PIN 53 is reset.
When PIN needle 53 rotated excessively and resulted in the single circle screw thread to drop completely to PIN needle circuit board 52 below, the bellied bottom of umbelliform can the butt at PIN needle circuit board 52's top surface, thereby prevent that fastening external member 7 from dropping, fastening external member 7 of deformation also can increase the power of hugging closely with PIN needle 53, thereby increase the frictional force with PIN needle 53, in order to prevent it to continue to rotate, and simultaneously, twist the single circle screw thread to PIN needle circuit board 51 below completely, because of receiving the extrusion deformation, can continuously give PIN needle circuit board 51 bottom surface an ascending power, be used for sealing up the through-hole above that.
When PIN needle 53 is vertical pushed and shove, the sealed between PIN needle 53 and PIN needle circuit board 52 can be increased to the single circle screw thread of extrusion deformation, and the screw thread section 72 of deformation also can give PIN needle 53 bigger frictional force to prevent PIN needle 53 from following fastening cover 7 and come off, and then prevent that PIN needle 53 from taking place the displacement.
The quick-release type connection reliability of the power line can be realized through the fastening sleeve 7, the conditions that the PIN 53 falls off due to shaking and sealing fails are reduced, and the service life of the quick-release type connection device is prolonged.
In one embodiment, the medical seal cover further comprises a front end seal cover 8, the inner side wall of the front end seal cover 8 is connected with the outer wall of the inner gear barrel 21 through the cylindrical pin 6, permanent magnets 9 are arranged on the inner end face of the front end seal cover 8 and the end face of the cover plate 4, and a medical seal membrane is selectively arranged between the front end seal cover 8 and the cover plate 4. The cylindrical pin 6 comprises a sleeve 61, a spring 62, a clamping ball 63 and a positioning ball 64; the joint ball 63 with the locating ball 64 all sets up in the sleeve pipe 61, be provided with locating lever 65 on the locating ball 64, the spring 62 cover is established on the locating lever 65, and the one end of spring 62 with locating ball 64 butt, the other end with joint ball 63 butt, be provided with spherical constant head tank on the inner wall of the sealed lid 8 of front end, be provided with the round pin joint groove on the lateral wall of apron 4, the round pin joint inslot is provided with the joint groove, the lateral wall of internal gear section of thick bamboo 21 is provided with the round pin hole, sleeve pipe 61 runs through the round pin hole and extends to in the round pin joint inslot.
The working principle and the beneficial effects of the technical scheme are as follows: the embodiment provides an implementation mode for full wrapping, which is used for reducing the risk of pollution caused by contamination of body fluid of a patient in the use process of the invention, the invention further comprises a front end sealing cover 8, when the implementation mode is used, a medical sealing membrane is required to be sleeved outside the invention, so that the wrapping of the invention is realized, only the output shaft 32 is exposed, a cylindrical pin 6 adopted in the implementation mode is different from the previous embodiments, the cylindrical pin in the implementation mode adopts a sleeve 61 to realize a pin connection function, when the front end sealing cover 8 is not arranged, whether the clamping ball 63 is clamped with the clamping groove or not is ensured, after the medical sealing membrane is wrapped, the front end sealing cover 8 is sleeved, at the moment, a permanent magnet 9 on the inner end face of the front end sealing cover 8 and a permanent magnet 9 on the end face of a cover plate 4 attract each other, so that the front end sealing cover 8 can be easily sleeved on the cover plate 4, the medical sealing membrane is pressed on the cover plate 4, the sealing membrane is prevented from being accumulated at the front end of the invention, the operation field of view is influenced, the position of the positioning groove on the inner side wall of the front end sealing cover 8 is adapted to the position of a positioning ball 64, the sleeve 61 is processed, the clamping groove of the sleeve 61, the clamping groove of the clamping ball 61, the clamping ball 63 is smaller than the positioning ball 64, and the diameter of the clamping ball is always smaller than the positioning ball 64 in the sliding process, and the clamping groove 64, and the positioning ball is extruded state of the positioning ball 64.
The inner side wall of the front end sealing cover 8 extrudes the positioning ball 64 into the sleeve 61, at the moment, the positioning ball 64 pushes the clamping ball 63 to move through the positioning rod 65, so that the clamping ball 63 is pushed into the clamping groove,
when the positioning groove of the front sealing cover 8 moves to the position of the positioning ball 64, the positioning ball 64 is clamped in the positioning groove under the action of the spring 62.
Because the medical sealing membrane is completely wrapped outside the medical sealing membrane, the positioning ball 64 will press the medical sealing membrane into the positioning groove together, thereby realizing the fixation of the medical sealing membrane.
In the embodiment, other equipment except the front end sealing cover 8 is wrapped by the medical sealing film, so that the medical sealing film can be used in an environment with adhesive germs such as aerosol and the like, the quantity of bacteria, blood and the like attached and corroded to the inside of the equipment is reduced, the attached bacteria can be effectively reduced under the condition that the equipment is in tension, the killing time is shortened, the utilization rate of the equipment is improved, the internal locking function of the front end sealing cover 8 can be realized while the pin joint function of the cylindrical pin 6 is realized, and the front end sealing cover 8 can be self-locked and fixed on the internal gear barrel 21 without screws.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
While embodiments of the invention have been disclosed above, it is not limited to the applications set forth in the description and the embodiments, which are fully applicable in various fields of endeavor to which the invention pertains, and further modifications may readily be made by those skilled in the art, it being understood that the invention is not limited to the details shown and described herein without departing from the general concept defined by the appended claims and their equivalents.
Claims (10)
1. A brushless dc geared motor, comprising: the gear assembly comprises a direct current brushless motor (1), a gear assembly (2), an output assembly (3), a cover plate (4) and a communicating assembly (5);
the communication component (5) is arranged at one end of the direct current brushless motor (1) and is used for being detachably connected with a power line;
the gear assembly (2) is arranged at the other end of the DC brushless motor (1),
the output assembly (3) is arranged on the cover plate (4) and movably connected with the gear assembly (2), and the output assembly (3) is used for being connected with output equipment;
the cover plate (4) is connected with the gear assembly (2) through a plurality of cylindrical pins (6) and a plurality of screws.
2. The brushless dc geared motor according to claim 1, wherein the gear assembly (2) comprises an internal gear drum (21), a bottom plate (22) and a planetary set; the planetary gear set is arranged in a conveying inner gear cylinder (21), the planetary gear set is meshed with teeth on the inner wall of the inner gear cylinder (21), the bottom plate (22) is arranged at one end of the inner gear cylinder (21), a driving shaft of the direct-current brushless motor (1) penetrates through the bottom plate (22) to extend into the inner gear cylinder (21) and is meshed with the planetary gear set through a motor gear, the cover plate (4) is connected with the other end of the inner gear cylinder (21) through the cylindrical pin (6) and the screw, and the output assembly (3) is connected with the planetary gear set.
3. The brushless dc geared motor according to claim 2, wherein said planetary wheel set comprises at least one set of transmission wheel set (23) and output wheel set (24); the transmission wheel set (23) comprises a planet carrier, a sun gear and at least three planet gears; the planetary gear pass through the gear shaft with one side of planet carrier is connected, sun gear with the opposite side of planet carrier is connected, motor gear is located threely between the planetary gear to with three the planetary gear meshes, planetary gear with the inner wall meshing of internal gear section of thick bamboo (21), output wheelset (24) with sun gear meshes, and output assembly (3) with output wheelset (24) are connected.
4. The brushless DC geared motor according to claim 3, wherein the output wheel set (24) comprises an output planet carrier and at least three output planet wheels; the output planet gears are connected with the output planet carrier through gear shafts, the sun gears are positioned among the three output planet gears and are meshed with each other, the output planet gears are meshed with the inner wall of the inner gear barrel (21), and the output assembly (3) is connected with the output planet carrier.
5. The brushless DC geared motor according to claim 4, characterized in that said output assembly (3) comprises a ball bearing (31) and an output shaft (32); one end of the output shaft (32) is connected with the output planet carrier, the other end of the output shaft is connected with output equipment, the ball bearing (31) is sleeved outside the output shaft (32), and the outer wall of the ball bearing (31) is connected with the cover plate (4).
6. The brushless dc geared motor according to claim 1, wherein said communication assembly (5) comprises at least two support tubes (51), a PIN circuit board (52), a number of PINs (53) and a motor cover (54); the PIN needle (53) is arranged on the PIN needle circuit board (52), the PIN needle (53) penetrates through the motor cover (54), the PIN needle circuit board (52) is connected with the end part of the direct current brushless motor (1) through the support tube (51), the motor cover (54) is arranged at the end part of the direct current brushless motor (1), and the direct current brushless motor (1) is electrically connected with the PIN needle (53).
7. The brushless direct current gear motor according to claim 6, wherein a fastening sleeve (7) is arranged on the PIN (53), the PIN (53) is connected with the PIN circuit board (52) through the fastening sleeve (7), the fastening sleeve (7) is an elastic piece, and the fastening sleeve (7) comprises a PIN embracing section (71), a thread section (72) and an I-shaped section (73); the I-shaped field (73) is connected with the PIN embracing section (71) through the thread section (72), the I-shaped field (73) is tubular, one end of the PIN PIN (53) is located in the I-shaped field (73) and is electrically connected with the direct current brushless motor (1), and the other end of the PIN PIN (53) penetrates through the thread section (72) and the PIN embracing section (71); the thread section (72) and the needle holding section (71) are both tubular, the inner diameters of the thread section (72) and the needle holding section (71) are the same, the inner diameters of the thread section (72) and the needle holding section (71) are smaller than the diameter of the PIN needle (53), and the inner diameter of the I-shaped section (73) is larger than the diameter of the PIN needle (53).
8. The brushless direct-current deceleration motor according to claim 7, wherein the outer wall of the threaded section (72) is provided with a single turn of thread, the major diameter of the single turn of thread is smaller than the diameter of the circle at the two ends of the I-shaped section (73), the needle holding section (71) is provided with an umbrella-shaped protrusion, the diameter of the top of the umbrella-shaped protrusion is smaller than that of the bottom of the umbrella-shaped protrusion, the diameter of the bottom of the umbrella-shaped protrusion is larger than the minor diameter of the single turn of thread, the elasticity of the I-shaped section (73) is smaller than that of the threaded section (72), and the elasticity of the threaded section (72) is smaller than that of the needle holding section (71).
9. The brushless direct current gear motor according to claim 2, further comprising a front end sealing cover (8), wherein an inner side wall of the front end sealing cover (8) is connected with an outer wall of the inner gear cylinder (21) through the cylindrical pin (6), permanent magnets (9) are arranged on an inner end face of the front end sealing cover (8) and an end face of the cover plate (4), and a medical sealing membrane is selectively arranged between the front end sealing cover (8) and the cover plate (4).
10. The brushless dc geared motor according to claim 9, wherein the cylindrical pin (6) comprises a bushing (61), a spring (62), a snap ball (63) and a positioning ball (64); joint ball (63) with location ball (64) all sets up in sleeve pipe (61), be provided with locating lever (65) on location ball (64), spring (62) cover is established locating lever (65) is last, and the one end of spring (62) with location ball (64) butt, the other end with joint ball (63) butt, be provided with spherical constant head tank on the inner wall of the sealed lid of front end (8), be provided with the round pin groove on the lateral wall of apron (4), the round pin inslot is provided with the joint groove, the lateral wall of internal gear section of thick bamboo (21) is provided with the round pin hole, sleeve pipe (61) run through the round pin hole and extend to in the round pin groove.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211614844.6A CN115987015B (en) | 2022-12-14 | 2022-12-14 | Brushless direct current gear motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211614844.6A CN115987015B (en) | 2022-12-14 | 2022-12-14 | Brushless direct current gear motor |
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| CN115987015A true CN115987015A (en) | 2023-04-18 |
| CN115987015B CN115987015B (en) | 2023-09-08 |
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| CN214888403U (en) * | 2021-04-30 | 2021-11-26 | 宁波固特轴承有限公司 | Miniature bearing for medical instrument |
| CN114607752A (en) * | 2022-03-23 | 2022-06-10 | 东莞市赛仑特实业有限公司 | Planetary gear motor capable of preventing collision, overload and clutch |
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| KR20090055879A (en) * | 2007-11-29 | 2009-06-03 | 전자부품연구원 | Reduction-gears integrated bldc motor |
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|---|---|
| CN115987015B (en) | 2023-09-08 |
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