CN211343971U - Double-worm gear transmission box - Google Patents
Double-worm gear transmission box Download PDFInfo
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- CN211343971U CN211343971U CN201921699737.1U CN201921699737U CN211343971U CN 211343971 U CN211343971 U CN 211343971U CN 201921699737 U CN201921699737 U CN 201921699737U CN 211343971 U CN211343971 U CN 211343971U
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Abstract
The utility model relates to a double worm gear transmission box body, which comprises a worm groove, a first transmission shaft, a second transmission groove, a second transmission shaft and an output groove; the worm groove includes relative first cell wall in position and second cell wall, first cell wall is equipped with first meshing opening, be equipped with second meshing opening and third meshing opening on the second cell wall, first transfer groove includes first fixed boss, first beaded finish and a plurality of first splice bar, the second transfer groove includes the fixed boss of second, second beaded finish and a plurality of second splice bar, the output groove includes the axle mouth, opening bulge loop and strengthening groove, above-mentioned double worm gear transmission box has compact structure, can reduce sound radiation's advantage.
Description
Technical Field
The utility model belongs to the technical field of small-size gear box motor and specifically relates to a two worm gear transmission box.
Background
Small motor gearboxes have found widespread use in general purpose mechanical devices. Due to the advantages of small volume, convenient transmission and the like, the adjustable seat is widely applied to the field of adjustment of electric seats of automobiles. In the field of electric seats, the electric seat is mainly used for realizing electric adjustment of the inclined angle position of the seat, a double-worm gear transmission structure is used for replacing the conventional single worm gear transmission in the market at present, so that the transmission efficiency and the service life of a worm gear are favorably improved, but the installation box body of the existing double-worm gear transmission structure is large in size, not compact enough in structure and large in sound radiation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a compact structure can reduce sound radiation's two worm gear transmission box.
In order to solve the technical problem, the utility model provides a double worm gear transmission box, which comprises a worm groove, a first transmission shaft, a second transmission groove, a second transmission shaft and an output groove; the worm groove comprises a first groove wall and a second groove wall which are opposite in position, a first meshing opening formed in the joint surface of the first transmission groove is formed in the first groove wall, a second meshing opening formed in the joint surface of the second transmission groove and a third meshing opening formed in the joint surface of the output groove are formed in the second groove wall, and the third meshing opening is close to the position, corresponding to the first meshing opening, of the second groove wall; the first transmission groove comprises a first fixing boss, a first reinforcing ring and a plurality of first connecting ribs, the first fixing boss is arranged in the middle of the bottom wall of the first transmission groove, the first connecting ribs are circumferentially arranged along the outer wall of the first fixing boss in an array mode, and the first fixing boss and the first reinforcing ring are fixedly connected through the first connecting ribs; the first transmission shaft is inserted in the middle of the first fixed boss; the second transmission groove comprises a second fixing boss, a second reinforcing ring and a plurality of second connecting ribs, the second fixing boss is arranged in the middle of the bottom wall of the second transmission groove, the second connecting ribs are circumferentially arranged along the outer wall of the second fixing boss in an array mode, and the second fixing boss and the second reinforcing ring are fixedly connected through the second connecting ribs; the second transmission shaft is inserted in the middle of the second fixed boss; the middle of the bottom wall of the output groove is provided with a shaft opening, the upper part of the shaft opening is provided with an opening convex ring matched with the shaft opening, and the lower part of the shaft opening is provided with a reinforcing groove.
Furthermore, the first transmission groove bottom wall is far away from the middle part of one side of the first fixed boss and is provided with a first deepening groove, and the first transmission shaft sequentially penetrates through the first fixed boss and the first transmission groove bottom wall and is inserted into the first deepening groove.
Further, first transmission groove diapire is kept away from be equipped with a plurality of first strengthening ribs, a plurality of on one side of first fixed boss first strengthening rib is followed first deepening groove outer wall circumference is arranged, the one end of first strengthening rib with first deepening groove outer wall connection.
Furthermore, a second deepening groove is formed in the middle of one side, far away from the second fixing boss, of the bottom wall of the second transmission groove, and the second transmission shaft penetrates through the second fixing boss and the bottom wall of the second transmission groove in sequence and is inserted into the second deepening groove.
Furthermore, the second transmission groove diapire is kept away from be equipped with a plurality of second strengthening ribs on one side of the fixed boss of second, and is a plurality of the second strengthening rib is followed the second deepens groove outer wall circumference and arranges, the one end of second strengthening rib with the second deepens the groove outer wall and connects.
Further, the first transmission shaft and the first fixing boss are integrally encapsulated and injected with plastic.
Further, the second transmission shaft and the second fixing boss are integrally encapsulated and injection-molded.
The beneficial effects of the utility model reside in that: compare with the traditional two worm gear transmission box that is used for the adjustment of car electric seat angle of inclination position, the utility model discloses a two worm gear transmission box input axis are closer with output axis, reduce the long wide size of part, and the structure is compacter, effectively reduces product sound radiation under the condition of proof strength.
Drawings
Fig. 1 is a schematic view of a first view angle of the overall structure of the embodiment of the present invention.
Fig. 2 is a schematic view of a second view angle of the overall structure of the embodiment of the present invention.
In the figure, the worm groove 100, the first groove wall 110, the first engaging opening 111, the second groove wall 120, the second engaging opening 121, the third engaging opening 122, the first transmission groove 200, the first fixing boss 210, the first reinforcement ring 220, the first connecting rib 230, the first deepening groove 240, the first reinforcement rib 250, the first transmission shaft 300, the second transmission groove 400, the second fixing boss 410, the second reinforcement ring 420, the second connecting rib 430, the second deepening groove 440, the second reinforcement rib 450, the second transmission shaft 500, the output groove 600, the shaft opening 610, the opening convex ring 620, and the reinforcement groove 630.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description, with reference to the accompanying drawings and embodiments, will explain the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1 and 2, a dual worm gear transmission case according to an embodiment of the present invention includes a worm groove 100, a first transmission groove 200, a first transmission shaft 300, a second transmission groove 400, a second transmission shaft 500, and an output groove 600; the worm groove 100 comprises a first groove wall 110 and a second groove wall 120 which are opposite in position, a first meshing opening 111 which is formed on the joint surface of the first groove wall 110 and the first transmission groove 200 is arranged on the first groove wall 110, a second meshing opening 121 which is formed on the joint surface of the second transmission groove 400 and a third meshing opening 122 which is formed on the joint surface of the output groove 600 are arranged on the second groove wall 120, and the third meshing opening 122 is close to the position, corresponding to the first meshing opening 111, of the second groove wall 120; the first transmission groove 200 comprises a first fixing boss 210, a first reinforcing ring 220 and a plurality of first connecting ribs 230, the first fixing boss 210 is arranged in the middle of the bottom wall of the first transmission groove 200, the first connecting ribs 230 are circumferentially arranged along the outer wall of the first fixing boss 210 in an array manner, and the first fixing boss 210 and the first reinforcing ring 220 are fixedly connected through the first connecting ribs 230; the first transmission shaft 300 is inserted into the middle of the first fixing boss 210; the second transmission groove 400 comprises a second fixing boss 410, a second reinforcing ring 420 and a plurality of second connecting ribs 430, the second fixing boss 410 is arranged in the middle of the bottom wall of the second transmission groove 400, the second connecting ribs 430 are circumferentially arranged along the outer wall of the second fixing boss 410 in an array manner, and the second fixing boss 410 and the second reinforcing ring 420 are fixedly connected through the second connecting ribs 430; the second transmission shaft 500 is inserted into the middle of the second fixing boss 410; the middle of the bottom wall of the output groove 600 is provided with a shaft opening 610, the upper part of the shaft opening 610 is provided with an opening convex ring 620 with a ring opening matched with the shaft opening 610, and the lower part of the shaft opening 610 is provided with a reinforcing groove 630.
It can be understood that, worm groove 100 is used for holding the worm, and first meshing opening 111 is used for worm and the duplicate gear meshing connection in the first driving groove 200, and second meshing opening 121 is used for worm and the duplicate gear meshing connection in the second driving groove 400, and third meshing opening 122 is used for the duplicate gear meshing connection in the first driving groove 200 and the output gear meshing connection in the output groove 600, and the operating condition under the high-speed rotatory state of stable transmission shaft has all been played to fixed boss in first driving groove 200 and the second driving groove 400, and reinforcing ring and the strengthening rib that establish around the fixed boss have all played further stable effect, the technical scheme of the utility model with input axis and output axis more close, reduce part length and width size, the structure is compacter, effectively reduces product sound radiation under the condition of assurance intensity.
Referring to fig. 2, a first deepening groove 240 is formed in a middle portion of a side of the bottom wall of the first transmission groove 200, which is far away from the first fixing boss 210, and the first transmission shaft 300 sequentially penetrates through the first fixing boss 210 and the bottom wall of the first transmission groove 200 and is inserted into the first deepening groove 240.
It will be appreciated that the provision of the first deepening groove 240 further stabilizes the first drive shaft 300 against shifting or over-torqueing and breaking at high rotational speeds.
Referring to fig. 2, a plurality of first reinforcing ribs 250 are disposed on a side of the bottom wall of the first transmission groove 200 away from the first fixing boss 210, the plurality of first reinforcing ribs 250 are arranged along the circumferential direction of the outer wall of the first deepening groove 240, and one end of each first reinforcing rib 250 is connected to the outer wall of the first deepening groove 240.
It will be appreciated that the provision of the first reinforcing beads 250 protects the case from cracking due to relatively large torque forces.
Referring to fig. 2, a second deepening groove 440 is formed in a middle portion of a side of the bottom wall of the second transmission groove 400 far away from the second fixing boss 410, and the second transmission shaft 500 sequentially penetrates through the second fixing boss 410 and the bottom wall of the second transmission groove 400 and is inserted into the second deepening groove 440.
It will be appreciated that the provision of the second deepening groove 440 further stabilizes the second drive shaft 500 against shifting or over-torqueing and breaking at high rotational speeds.
Referring to fig. 2, a plurality of second reinforcing ribs 450 are disposed on a side of the bottom wall of the second transmission groove 400 away from the second fixing boss 410, the plurality of second reinforcing ribs 450 are arranged along the circumferential direction of the outer wall of the second deepening groove 440, and one end of the second reinforcing rib 450 is connected with the outer wall of the second deepening groove 440.
It will be appreciated that the provision of the second reinforcing beads 450 protects the case from cracking due to relatively large torque forces.
Further, the first transmission shaft 300 and the first fixing boss 210 are integrally over-molded, which makes the first transmission shaft 300 more stable at high-speed rotation.
Further, the second transmission shaft 500 is integrally over-molded with the second fixing boss 410, which makes the second transmission shaft 500 more stable at high-speed rotation.
The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description in any form, and although the present invention has been disclosed with reference to the preferred embodiment, it is not limited to the present invention, and any skilled person in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.
Claims (7)
1. The utility model provides a two worm gear drive box which characterized in that: comprises a worm groove (100), a first transmission groove (200), a first transmission shaft (300), a second transmission groove (400), a second transmission shaft (500) and an output groove (600);
the worm groove (100) comprises a first groove wall (110) and a second groove wall (120) which are opposite in position, a first meshing opening (111) formed in a joint face of the first transmission groove (200) is formed in the first groove wall (110), a second meshing opening (121) formed in a joint face of the second transmission groove (400) and a third meshing opening (122) formed in a joint face of the second transmission groove (600) and the output groove (600) are formed in the second groove wall (120), and the third meshing opening (122) is close to a position, corresponding to the first meshing opening (111) in the second groove wall (120);
the first transmission groove (200) comprises a first fixing boss (210), a first reinforcing ring (220) and a plurality of first connecting ribs (230), the first fixing boss (210) is arranged in the middle of the bottom wall of the first transmission groove (200), the first connecting ribs (230) are arranged along the circumferential direction of the outer wall of the first fixing boss (210) in an array mode, and the first fixing boss (210) is fixedly connected with the first reinforcing ring (220) through the first connecting ribs (230);
the first transmission shaft (300) is inserted in the middle of the first fixed boss (210);
the second transmission groove (400) comprises a second fixing boss (410), a second reinforcing ring (420) and a plurality of second connecting ribs (430), the second fixing boss (410) is arranged in the middle of the bottom wall of the second transmission groove (400), the second connecting ribs (430) are arranged along the outer wall of the second fixing boss (410) in a circumferential array mode, and the second fixing boss (410) and the second reinforcing ring (420) are fixedly connected through the second connecting ribs (430);
the second transmission shaft (500) is inserted in the middle of the second fixing boss (410);
the middle of the bottom wall of the output groove (600) is provided with a shaft opening (610), the upper part of the shaft opening (610) is provided with a ring opening and an opening convex ring (620) matched with the shaft opening (610), and the lower part of the shaft opening (610) is provided with a reinforcing groove (630).
2. A twin worm gear housing as defined in claim 1, wherein: first transmission groove (200) diapire is kept away from one side middle part of first fixed boss (210) is equipped with first deepening groove (240), first transmission shaft (300) run through in proper order first fixed boss (210) with first transmission groove (200) diapire inserts in first deepening groove (240).
3. A twin worm gear housing as defined in claim 2, wherein: first transmission slot (200) diapire is kept away from be equipped with a plurality of first strengthening ribs (250) on one side of first fixed boss (210), it is a plurality of first strengthening rib (250) are followed first deepening groove (240) outer wall circumference is arranged, the one end of first strengthening rib (250) with first deepening groove (240) outer wall connection.
4. A twin worm gear housing as defined in claim 1, wherein: the middle part of one side of the bottom wall of the second transmission groove (400), which is far away from the second fixed boss (410), is provided with a second deepening groove (440), and the second transmission shaft (500) sequentially penetrates through the second fixed boss (410) and the bottom wall of the second transmission groove (400) to be inserted into the second deepening groove (440).
5. A twin worm gear housing as defined in claim 4, wherein: the bottom wall of the second transmission groove (400) is far away from one side of the second fixed boss (410), a plurality of second reinforcing ribs (450) are arranged on the bottom wall of the second transmission groove, the second reinforcing ribs (450) are arranged along the circumferential direction of the outer wall of the second deepening groove (440), and one end of each second reinforcing rib (450) is connected with the outer wall of the second deepening groove (440).
6. A twin worm gear housing as defined in claim 1, wherein: the first transmission shaft (300) and the first fixed boss (210) are integrally encapsulated and injected.
7. A twin worm gear housing as defined in claim 1, wherein: the second transmission shaft (500) and the second fixing boss (410) are integrally encapsulated and injected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921699737.1U CN211343971U (en) | 2019-10-10 | 2019-10-10 | Double-worm gear transmission box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921699737.1U CN211343971U (en) | 2019-10-10 | 2019-10-10 | Double-worm gear transmission box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211343971U true CN211343971U (en) | 2020-08-25 |
Family
ID=72103066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921699737.1U Active CN211343971U (en) | 2019-10-10 | 2019-10-10 | Double-worm gear transmission box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211343971U (en) |
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2019
- 2019-10-10 CN CN201921699737.1U patent/CN211343971U/en active Active
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