CN204477201U - A kind of motor-driven gear box structure of improvement - Google Patents
A kind of motor-driven gear box structure of improvement Download PDFInfo
- Publication number
- CN204477201U CN204477201U CN201520119059.2U CN201520119059U CN204477201U CN 204477201 U CN204477201 U CN 204477201U CN 201520119059 U CN201520119059 U CN 201520119059U CN 204477201 U CN204477201 U CN 204477201U
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- China
- Prior art keywords
- teeth
- gear
- driven gear
- contact
- arc
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Abstract
The utility model discloses a kind of motor-driven gear box structure of improvement, comprise casing, at least a set of transmission device is provided with in casing, described transmission device comprises driving gear, intermediate gear and driven gear, driving gear is provided with the first teeth, intermediate gear is provided with the second teeth, driven gear is provided with the 3rd teeth, the both sides of the first teeth are provided with several the first grooves, the surface of contact that second teeth and the first teeth contact is provided with the ladder chute matched with the first teeth, the bottom surface of ladder chute is provided with rubber layer, the both sides of ladder chute are provided with the arc-shaped spring piece with the first fit depressions, second teeth are provided with arc convex portion with the top of the surface of contact that the 3rd teeth contact, 3rd teeth are provided with the arc-shaped recess portion matched with arc convex portion.The utility model can improve the deficiencies in the prior art, improves the smoothness of protection for gear and Power output.
Description
Technical field
The utility model relates to motor-driven technical field, especially a kind of motor-driven gear box structure of improvement.
Background technique
Gear-box is requisite intermediate transmission parts in motor-driven process.Due in power input process usually with the generation of vibration, this just makes, at the gear of gear-box inner engagement driving, vibration easily occurs and beats tooth, not only produces gear-box and damages, also have impact on the smoothness of gear-box Power output simultaneously.
Model utility content
The technical problems to be solved in the utility model is to provide a kind of motor-driven gear box structure of improvement, can solve the deficiencies in the prior art, improves the smoothness of protection for gear and Power output.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A kind of motor-driven gear box structure of improvement, comprise casing, at least a set of transmission device is provided with in casing, described transmission device comprises driving gear, intermediate gear and driven gear, the arranged outside of driving gear has driving shaft, the arranged outside of driven gear has driven shaft, driving shaft is connected with casing respectively by bearing with driven shaft, driving gear and driven gear engage with intermediate gear respectively, driving gear is provided with the first teeth, intermediate gear is provided with the second teeth, driven gear is provided with the 3rd teeth, the surface of contact of the first teeth and the 3rd teeth and the second teeth is trapezoidal, the both sides of the first teeth are provided with several the first grooves, the surface of contact that second teeth and the first teeth contact is provided with the ladder chute matched with the first teeth, the bottom surface of ladder chute is provided with rubber layer, the both sides of ladder chute are provided with the arc-shaped spring piece with the first fit depressions, second teeth are provided with arc convex portion with the top of the surface of contact that the 3rd teeth contact, 3rd teeth are provided with the arc-shaped recess portion matched with arc convex portion.
As preferably, the bottom of described ladder chute is provided with mobile plate by spring body, and described rubber layer is arranged on mobile plate.
As preferably, described spring body inside is provided with rubber cylinder, and the top of rubber cylinder is fixedly connected with mobile plate, the bottom of rubber cylinder and the bottom selective exposure of ladder chute.
The beneficial effect adopting technique scheme to bring is: the utility model on the basis of existing technology, between two direct meshed gears of script, intermediate gear is set, by the buffering of intermediate gear, what decrease vibration beats tooth phenomenon, improves the smoothness of clutch end simultaneously.When first teeth contact with the second teeth, first teeth enter in ladder chute, first groove and arc-shaped spring piece are closely crimped together, reduce the relative displacement of the first teeth and the second teeth, external force is subject in the first teeth, and when there is the trend of relative displacement between the second teeth, the generation elastic strain that arc-shaped spring piece is corresponding, external force is cushioned, reduces because the first teeth and the second teeth are owing to relative displacement occurring and occur beat tooth phenomenon.Rubber layer not only cushions when the first teeth engage with the second teeth, and can improve the stiction that the first teeth are subject to, and improves the stability of the first teeth.When second teeth contact with the 3rd teeth, arc convex portion enters in arc-shaped recess portion, in the whole process that the second teeth contact with the 3rd teeth, only there is the change of relative angle in arc convex portion and arc-shaped recess portion, arc convex portion can be consistent and be positioned at inside, arc-shaped recess portion, ensure that the second teeth remain sufficient contacting with each other with the overall process that engages of the 3rd teeth, thus improve the relative stability between driven gear and intermediate gear, improve the smoothness of Power output.Mobile plate can make up the deficiency of arc-shaped spring piece for the stressed buffering of Vertical direction, improves the protection for gear further.After mobile plate is set, due to the elasticity the sphere of activities that vertical direction produces, this just causes when there is the vibration of vertical direction, the buffer function of the first teeth and the second teeth in the vertical direction can produce fluctuation to the transmission value of power, in spring body inside, rubber cylinder is set, the maximum cushioning amount of this vertical direction can be limited, when rubber cylinder touches the bottom of ladder chute, the stable transfer of power can be ensured.
Accompanying drawing explanation
Fig. 1 is the structural drawing of the utility model embodiment.
Fig. 2 is the sectional view that in the utility model embodiment, the first teeth engage position with the second teeth.
Fig. 3 is the sectional view that in the utility model embodiment, the second teeth engage position with the 3rd teeth.
In figure: 1, casing; 2, driving gear; 3, intermediate gear; 4, driven gear; 5, driving shaft; 6, driven shaft; 7, the first teeth; 8, the second teeth; 9, the 3rd teeth; 10, the first groove; 11, ladder chute; 12, rubber layer; 13, arc-shaped spring piece; 14, arc convex portion; 15, arc-shaped recess portion; 16, spring body; 17, mobile plate; 18, rubber cylinder; 19, bearing; 20, rubber sleeve; 21, locating stud.
Embodiment
The standardized element used in the utility model all can be commercially, special-shaped part all can carry out customized according to specification with the record of accompanying drawing, the concrete Placement of each part all adopts the conventional means such as bolt, rivet, welding, stickup ripe in prior art, is not described in detail in this.
With reference to Fig. 1-3, model utility embodiment comprises casing 1, a set of transmission device is provided with in casing 1, described transmission device comprises driving gear 2, intermediate gear 3 and driven gear 4, the arranged outside of driving gear 2 has driving shaft 5, the arranged outside of driven gear 4 has driven shaft 6, driving shaft 5 is connected with casing 1 respectively by bearing 19 with driven shaft 6, driving gear 2 and driven gear 4 engage with intermediate gear 3 respectively, driving gear 2 is provided with the first teeth 7, intermediate gear 3 is provided with the second teeth 8, driven gear 4 is provided with the 3rd teeth 9, the surface of contact of the first teeth 7 and the 3rd teeth 9 and the second teeth 8 is trapezoidal, the both sides of the first teeth 7 are provided with several the first grooves 10, the surface of contact that second teeth 8 and the first teeth 7 contact is provided with the ladder chute 11 matched with the first teeth 7, the bottom surface of ladder chute 11 is provided with rubber layer 12, the both sides of ladder chute 11 are provided with the arc-shaped spring piece 13 matched with the first groove 10, second teeth 8 are provided with arc convex portion 14 with the top of the surface of contact that the 3rd teeth 9 contact, 3rd teeth 9 are provided with the arc-shaped recess portion 15 matched with arc convex portion 14.When first teeth 7 contact with the second teeth 8, first teeth 7 enter in ladder chute 11, first groove 10 is closely crimped together with arc-shaped spring piece 13, reduce the relative displacement of the first teeth 7 and the second teeth 8, external force is subject in the first teeth 7, and when there is the trend of relative displacement between the second teeth 8, the generation elastic strain that arc-shaped spring piece 13 is corresponding, external force is cushioned, reduces because the first teeth 7 and the second teeth 8 are owing to relative displacement occurring and occur beat tooth phenomenon.Rubber layer 12 not only cushions when the first teeth 7 engage with the second teeth 8, and can improve the stiction that the first teeth 7 are subject to, and improves the stability of the first teeth 7.When second teeth 8 contact with the 3rd teeth 9, arc convex portion 14 enters in arc-shaped recess portion 15, in the whole process that the second teeth 8 contact with the 3rd teeth 9, only there is the change of relative angle in arc convex portion 14 and arc-shaped recess portion 15, arc convex portion 14 can be consistent and be positioned at inside, arc-shaped recess portion 15, ensure that the second teeth 8 remain sufficient contacting with each other with the overall process that engages of the 3rd teeth 9, thus the relative stability that improve between driven gear 4 and intermediate gear 3, improve the smoothness of Power output.The bottom of ladder chute 11 is provided with mobile plate 17 by spring body 16, and described rubber layer 12 is arranged on mobile plate 17, and mobile plate 17 can make up the deficiency of arc-shaped spring piece 13 for the stressed buffering of Vertical direction, improves the protection for gear further.Spring body 16 inside is provided with rubber cylinder 18, the top of rubber cylinder 18 is fixedly connected with mobile plate 17, the bottom of rubber cylinder 18 and the bottom selective exposure of ladder chute 11, after mobile plate 17 is set, due to the elasticity the sphere of activities that vertical direction produces, this just causes when there is the vibration of vertical direction, the buffer function of the first teeth 7 and the second teeth 8 in the vertical direction can produce fluctuation to the transmission value of power, in spring body 16 inside, rubber cylinder 18 is set, the maximum cushioning amount of this vertical direction can be limited, when rubber cylinder 18 touches the bottom of ladder chute 11, the stable transfer of power can be ensured.
In addition, at the arranged outside rubber sleeve 20 of the bearing 19 of driving shaft 5 side, casing 1 surface thereof is provided with locating stud 21, and locating stud 21 inserts in rubber sleeve 20, and locating stud 21 is 20 ° with the angle of vertical direction.Rubber sleeve 20 can reduce the resonance that bearing 19 produces when being subject to external vibration, improve the rotary flat stability of driving shaft 5, locating stud 21 can to ensure between rubber sleeve 20 and casing 1 fixing stability, thus avoids fixing unsteady problem between the bearing 19 that occurs owing to arranging rubber sleeve 20 and casing 1.
The utility model can also select many covers when arranging transmission device, its working principle is identical with a set of transmission device.
Wherein, other fixture of the power Placement of gear-box outside and gear-box itself belongs to the common practise of those skilled in the art, is not described in detail in this.
More than show and describe basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. the motor-driven gear box structure improved, comprise casing (1), at least a set of transmission device is provided with in casing (1), it is characterized in that: described transmission device comprises driving gear (2), intermediate gear (3) and driven gear (4), the arranged outside of driving gear (2) has driving shaft (5), the arranged outside of driven gear (4) has driven shaft (6), driving shaft (5) is connected with casing (1) respectively by bearing (19) with driven shaft (6), driving gear (2) and driven gear (4) engage with intermediate gear (3) respectively, driving gear (2) is provided with the first teeth (7), intermediate gear (3) is provided with the second teeth (8), driven gear (4) is provided with the 3rd teeth (9), first teeth (7) and the 3rd teeth (9) are trapezoidal with the surface of contact of the second teeth (8), the both sides of the first teeth (7) are provided with several the first grooves (10), the surface of contact that second teeth (8) and the first teeth (7) contact is provided with the ladder chute (11) matched with the first teeth (7), the bottom surface of ladder chute (11) is provided with rubber layer (12), the both sides of ladder chute (11) are provided with the arc-shaped spring piece (13) matched with the first groove (10), second teeth (8) are provided with arc convex portion (14) with the top of the surface of contact that the 3rd teeth (9) contact, 3rd teeth (9) are provided with the arc-shaped recess portion (15) matched with arc convex portion (14).
2. the motor-driven gear box structure of improvement according to claim 1, it is characterized in that: the bottom of described ladder chute (11) is provided with mobile plate (17) by spring body (16), and described rubber layer (12) is arranged on mobile plate (17).
3. the motor-driven gear box structure of improvement according to claim 2, it is characterized in that: described spring body (16) inside is provided with rubber cylinder (18), the top of rubber cylinder (18) is fixedly connected with mobile plate (17), the bottom of rubber cylinder (18) and the bottom selective exposure of ladder chute (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119059.2U CN204477201U (en) | 2015-02-17 | 2015-02-17 | A kind of motor-driven gear box structure of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119059.2U CN204477201U (en) | 2015-02-17 | 2015-02-17 | A kind of motor-driven gear box structure of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204477201U true CN204477201U (en) | 2015-07-15 |
Family
ID=53632992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520119059.2U Expired - Fee Related CN204477201U (en) | 2015-02-17 | 2015-02-17 | A kind of motor-driven gear box structure of improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204477201U (en) |
-
2015
- 2015-02-17 CN CN201520119059.2U patent/CN204477201U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20160217 |
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| CF01 | Termination of patent right due to non-payment of annual fee |