CN209875865U - Gapless gear transmission mechanism and speed reducing motor - Google Patents
Gapless gear transmission mechanism and speed reducing motor Download PDFInfo
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- CN209875865U CN209875865U CN201920562987.4U CN201920562987U CN209875865U CN 209875865 U CN209875865 U CN 209875865U CN 201920562987 U CN201920562987 U CN 201920562987U CN 209875865 U CN209875865 U CN 209875865U
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Abstract
The utility model discloses a gapless gear transmission mechanism, which comprises an output gear, two intermediate gears and two input gears; the two intermediate gears are meshed with the output gear simultaneously; the two same-rotation-direction input gears are arranged in a staggered mode and are respectively meshed with the two intermediate gears. The utility model also provides a gear motor. The utility model discloses a zero clearance gear drive is through setting up two input gear dislocation for the teeth of a cogwheel of two intermediate gear of transmission tooth group rotation in-process all the time with output gear's both sides flank of tooth butt, thereby eliminate the transmission clearance, improve the transmission precision.
Description
Technical Field
The utility model relates to a gear drive technical field specifically, relates to a gapless gear drive and gear motor.
Background
The gear transmission has the advantages of high transmission precision, large bearing capacity and the like, so the gear transmission is widely applied to the feeding system of electromechanical equipment, but because a transmission gap exists between transmission gear pairs, in the working process, the backlash can cause that each reverse motion of the feeding system lags behind a command signal, command pulses are lost, a reverse dead zone is generated, and the transmission precision is influenced.
SUMMERY OF THE UTILITY MODEL
To the not enough of prior art, the utility model discloses a zero clearance gear drive, it includes: an output gear, two intermediate gears and two input gears; the two intermediate gears are meshed with the output gear simultaneously; the two same-rotation-direction input gears are arranged in a staggered mode and are respectively meshed with the two intermediate gears.
According to an embodiment of the present invention, an elastic member is disposed between the two input gears.
According to an embodiment of the present invention, the two intermediate gears and the two input gears are helical gears.
According to the utility model discloses an embodiment, above-mentioned two intermediate gear are duplicate gear.
According to an embodiment of the present invention, the gapless gear transmission further comprises an output shaft; the output shaft is arranged on the output gear.
According to the utility model discloses an embodiment is equipped with the response piece on the above-mentioned output shaft.
The utility model discloses another aspect discloses a gear motor, including above-mentioned zero clearance gear drive mechanism.
According to an embodiment of the present invention, the reduction motor further includes a driving motor; the two input gears are sleeved on the output shaft of the driving motor.
According to an embodiment of the present invention, the reduction motor further includes a housing; the gapless gear transmission mechanism is arranged in the shell.
According to an embodiment of the present invention, the reduction motor further includes a sensor; the sensor is arranged on the shell.
The utility model has the advantages that: the utility model discloses a zero clearance gear drive is through setting up two input gear dislocation for the teeth of a cogwheel of two intermediate gear of transmission tooth group rotation in-process all the time with output gear's both sides flank of tooth butt, thereby eliminate the transmission clearance, improve the transmission precision.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural view of a gapless gear transmission mechanism in an embodiment of the present invention;
fig. 2 is another schematic view of the embodiment of the present invention showing a gapless gear transmission mechanism;
fig. 3 is a schematic structural diagram of a speed reduction motor in an embodiment of the present invention;
fig. 4 is another schematic structural diagram of the speed reducing motor according to the embodiment of the present invention;
fig. 5 is a schematic structural view of the embodiment of the present invention, in which the reduction motor is engaged with the input gear.
Detailed Description
In the following description, numerous implementation details are set forth in order to provide a more thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the invention. That is, in some embodiments of the invention, details of these implementations are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for description purposes, not specifically referring to the order or sequence, and are not intended to limit the present invention, but only to distinguish the components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
For further understanding of the contents, features and effects of the present invention, the following embodiments are exemplified in conjunction with the accompanying drawings as follows:
referring to fig. 1 and 2, fig. 1 is a schematic structural view of a gapless gear transmission mechanism 2 according to an embodiment of the present invention; fig. 2 is another schematic view of the gapless gear transmission 2 according to the embodiment of the present invention. As shown, the slackless gear train 2 of the present application includes an output gear 21, two intermediate gears 22, and two input gears 23. The two intermediate gears 22 are meshed with the output gear 21 simultaneously, that is, the teeth of the two intermediate gears 22 respectively abut against the opposite side tooth surfaces of the output gear 21, and specifically, the two intermediate gears 22 are double gears. The two input gears 23 have the same rotation direction, the two input gears 23 are arranged in a staggered mode, namely projections of gear teeth of the two input gears 23 are not overlapped, and the two input gears 23 are respectively meshed with the two intermediate gears 22.
During specific application, two input gears 23 of external drive spare drive rotate, and each item parameter such as the number of teeth, the modulus of two input gears 23 is the same, because two input gears 23 dislocation sets to make respectively with two intermediate gear 22's of two input gear 23 meshing teeth of a cogwheel simultaneously with output gear 21's teeth of a cogwheel contact, make not have the backlash between the two, carry out no backlash gear drive, thereby improve the transmission precision.
Preferably, both the intermediate gears 22 and both the input gears 23 are helical gears. The bevel gear has good meshing performance, large contact ratio and compact structure, and can ensure the transmission stability.
Preferably, an elastic member 24 is disposed between the two input gears 23, two ends of the elastic member 24 respectively abut against the two input gears 23, and specifically, the elastic member 24 is a spring. Because the elastic member 24 has elastic force, in the gear transmission process, the two input gears 23 can axially move under the action of the elastic force, and because the two intermediate gears 22 and the two input gears 23 are helical gears, when the two input gears 23 axially move, the gear teeth of the intermediate gears 22 and the gear teeth of the input gears 23 are in a staggered meshing state, that is, the gear teeth of the intermediate gears 22 and the gear teeth of the input gears 23 are higher and lower, and the gear surfaces of the intermediate gears 22 and the gear surfaces of the input gears 23 are in contact, so that the gear backlash is automatically adjusted.
The gapless gear transmission mechanism 2 of the present embodiment can be used for a reduction motor, and the structure and the operation principle thereof for the reduction motor will be described in detail below.
Referring to fig. 3, 4 and 5, fig. 3 is a schematic structural diagram of a speed reduction motor according to an embodiment of the present invention; fig. 4 is another schematic structural diagram of the speed reducing motor according to the embodiment of the present invention; fig. 5 is a schematic structural diagram of the embodiment of the present invention in which the reduction motor is engaged with the input gear 23. As shown in the figure, the speed reducing motor comprises a casing 1, a gapless gear transmission mechanism 2 and a driving motor 3. The gapless gear transmission mechanism 2 is arranged in the machine shell 1. The driving motor 3 is arranged on the machine shell 1 through a bolt, and the output end of the driving motor 3 penetrates through the side wall of the machine shell 1 and is connected with the gapless gear transmission mechanism 2 in the machine shell 1.
When the device is used specifically, the output gear 21 is arranged in the machine shell 1, the output gear 21 is provided with the output shaft 211 in a threaded manner, the output gear 21 and the output shaft 211 are coaxial, and the output shaft 211 penetrates through the side wall of the machine shell 1. Two intermediate gears 22 are rotatably arranged in the machine shell 1 through a rotating shaft 221, the two ends of the rotating shaft 221 are respectively sleeved with a waveform gasket 222, the waveform gasket 222 has good elasticity, impact resistance and other performances, and plays roles of preventing looseness and buffering in the rotating process of the two intermediate gears 22. The two input gears 23 and the elastic part 24 are all sleeved on the output shaft of the driving motor 3, one end, far away from the driving motor 3, of the output shaft of the driving motor 3 is connected with a gasket 25 through a bolt, one end, close to the driving motor 3, of the output shaft of the driving motor 3 is sleeved with a snap spring 26, the axial moving distance of the two input gears 23 is limited through the gasket 25 and the snap spring 26, and therefore the two input gears can only move between the gasket 25 and the snap spring 26.
When the power transmission mechanism is used specifically, the driving motor generates driving force to drive the two input gears 23 to rotate, the two input gears 23 respectively drive the two intermediate gears 22 to rotate, the two intermediate gears 22 simultaneously drive the output gear 21 to rotate, the output gear 21 drives the output shaft 211 to rotate, and force is transmitted to parts connected with the output shaft 211.
Preferably, the output shaft of the driving motor 3 is further sleeved with an O-ring 27, the O-ring 27 is located between the two input gears 23 and the gasket 25 and the snap spring 26, that is, the O-ring 27 is located between the gasket 25 and one input gear 23, and the O-ring 27 is also located between the snap spring 26 and the other input gear 23, so that dynamic sealing is achieved through the O-ring 27.
During specific application, gear motor still includes sensor 4, casing 1 is located through the bolt spiral shell to sensor 4, specifically, sensor 4 is cell type photoelectric switch, the spiral shell is equipped with response piece 212 on the output shaft 211, output gear 21 drives output shaft 211 when rotating and rotates, output shaft 211 drives response piece 212 and rotates, when response piece 212 rotates the groove of in-process cell type photoelectric switch, the infrared emission pipe, response piece 212 and infrared receiver tube three are on a straight line, response piece 212 shelters from the infrared ray that the infrared emission pipe transmitted and makes the infrared receiver tube can not receive light, cell type photoelectric switch feeds back the signal of this state to control system, so that the user knows the operating condition of zero clearance gear drive mechanism 2.
To sum up, in the utility model discloses in one or more embodiments, the utility model discloses a zero clearance gear drive is through setting up two input gear dislocation for the teeth of a cogwheel of two intermediate gear of transmission tooth group rotation in-process all the time with output gear's both sides flank of tooth butt, thereby eliminate the transmission clearance, improve the transmission precision.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made by the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. A slackless gear assembly, comprising: an output gear, two intermediate gears and two input gears; the two intermediate gears are meshed with the output gear simultaneously; the two input gears in the same rotation direction are arranged in a staggered mode and are respectively meshed with the two intermediate gears.
2. The slackless gear assembly of claim 1 wherein a resilient member is disposed between said input gears.
3. The slackless gear assembly of claim 1 wherein both of said intermediate gears and both of said input gears are helical gears.
4. The slackless gear assembly of claim 1 wherein both of said intermediate gears are duplicate gears.
5. The slackless gear assembly of claim 1 further comprising an output shaft; the output shaft is disposed at the output gear.
6. The slackless gear assembly of claim 5 wherein said output shaft is provided with a sensing tab.
7. A geared motor comprising a gapless gear transmission according to any one of claims 1 to 6.
8. The geared motor according to claim 7, further comprising a drive motor; the two input gears are sleeved on the output shaft of the driving motor.
9. The geared motor according to claim 8, further comprising a casing; the gapless gear transmission mechanism is arranged in the shell.
10. The geared motor according to claim 9, further comprising a sensor; the sensor is arranged on the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920562987.4U CN209875865U (en) | 2019-04-24 | 2019-04-24 | Gapless gear transmission mechanism and speed reducing motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920562987.4U CN209875865U (en) | 2019-04-24 | 2019-04-24 | Gapless gear transmission mechanism and speed reducing motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875865U true CN209875865U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920562987.4U Active CN209875865U (en) | 2019-04-24 | 2019-04-24 | Gapless gear transmission mechanism and speed reducing motor |
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| CN (1) | CN209875865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973591A (en) * | 2019-04-24 | 2019-07-05 | 广东金力变速科技股份有限公司 | Gas-fee gare driving mechanism and decelerating motor |
-
2019
- 2019-04-24 CN CN201920562987.4U patent/CN209875865U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109973591A (en) * | 2019-04-24 | 2019-07-05 | 广东金力变速科技股份有限公司 | Gas-fee gare driving mechanism and decelerating motor |
| WO2020215733A1 (en) * | 2019-04-24 | 2020-10-29 | 广东金力变速科技股份有限公司 | Zero-clearance gear transmission mechanism and speed-reducing electric motor |
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Address after: 516223 changbuxinpi village, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province Patentee after: Guangdong Kingly Gear Co.,Ltd. Address before: 516223 changbuxinpi village, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province Patentee before: GUANGDONG KINGLY GEAR Co.,Ltd. |