CN207178591U - Gear and speed changer - Google Patents
Gear and speed changer Download PDFInfo
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- CN207178591U CN207178591U CN201721198952.4U CN201721198952U CN207178591U CN 207178591 U CN207178591 U CN 207178591U CN 201721198952 U CN201721198952 U CN 201721198952U CN 207178591 U CN207178591 U CN 207178591U
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- gear
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- connecting shaft
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Abstract
The utility model provides a kind of gear, is related to gear shift device technical field, solves that epicyclic transmission present in prior art is complicated, bulky technical problem.The gear, including first gear, second gear and connection gear, the pivot center of second gear runs through the central area of first gear, and orthographic projection of the second gear on its pivot center direction is located within first gear；Orthographic projection of the part or all of teeth of connection gear on first gear pivot center direction is located within first gear；First gear, second gear and connection gear three are bevel gear, and the first teeth in connection gear engage with first gear, and the second teeth in connection gear are meshed with second gear；The same sidepiece of gear where the teeth in teeth and second gear in first gear are respectively positioned on it.The utility model is used to change rotating speed and/or moment of torsion that power take-off mechanism exports to power input mechanism.
Description
Technical field
Gear shift device technical field is the utility model is related to, more particularly, to a kind of gear and speed changer.
Background technology
Speed changer is for changing the rotating speed from engine and the mechanism of torque, and it can be fixed or stepping changes output shaft
With input shaft gearratio, also known as gearbox.Speed changer is made up of variable transmission mechanism and operating mechanism, and some automobiles are also dynamic
Output mechanism.Transmission mechanism ordinary gear multi-purpose greatly is driven, also some Planetary Gear Transmissions.Ordinary gear transmission shifting mechanism
Typically with shifting slide gear and synchronizer etc..Planetary Gear Transmission refers to the axis of one or more gears around another gear
The gear drive of fixed axis revolution.Planetary gear both turned round around the axis of itself, and was turned round with planet carrier around fixed axis.Planet
Gear-driven main feature large carrying capacity, stable working；But Large-power High-Speed planetary gear transmission mechanism is more complicated, it is desirable to
The accuracy of manufacture is high.Some type efficiency highs in Planetary Gear Transmission, but gearratio is little, and then gearratio can be very for other types
Greatly, but less efficient, when making decelerator with them, its efficiency reduces with the increase of gearratio, and volume is larger.
Utility model content
The purpose of this utility model is to provide a kind of gear and speed changer, to solve row present in prior art
Star gear shift is complicated, bulky technical problem.
To achieve the above object, the utility model provides following technical scheme：A kind of gear, including the first tooth
One of them is driving gear for wheel, second gear and both connection gears, the first gear and second gear, and both are wherein
Another is driven gear, and the power intake of the driving gear can be connected with power take-off mechanism, the driven gear
Clutch end can be connected with power input mechanism；The power intake of the driving gear is connected with power take-off mechanism
And the driving gear can be by the tooth connection when being connected with power input mechanism for the clutch end of the driven gear
Wheel drive the driven gear to rotate with change rotating speed that the power take-off mechanism exports to the power input mechanism and/or
Moment of torsion；
The pivot center of the second gear runs through the central area of the first gear, and the second gear is in its turn
Orthographic projection on shaft line direction is located within the first gear；
Orthographic projection of the part or all of teeth of the connection gear on the first gear pivot center direction is located at
Within the first gear；
The first gear, the second gear and the connection gear three are bevel gear, the connection gear
On the first teeth engaged with the first gear, the second teeth in the connection gear are meshed with second gear；It is described
The same sidepiece of gear where teeth in first gear are respectively positioned on it with the teeth in the second gear.
Preferably, the first gear is annular, and the internal diameter of the annular is more than the external diameter of the second gear, and
The second gear is arranged in the inner space of the annular of the first gear, and first gear and second gear are positioned at described
The homonymy of connection gear, the first gear are identical with the rotation direction of second gear (2).
Preferably, the connection gear includes the first fifth wheel and the second fifth wheel, and first fifth wheel and second connect
Cock wheel is fixedly connected by connecting shaft, and first teeth are located at first fifth wheel, and second teeth are positioned at described the
Two fifth wheels, first fifth wheel are engaged by the first teeth with the first gear, and second fifth wheel passes through
Second teeth engage with the second gear.
Preferably, the gear also includes connection gear support fixed mechanism, the connecting shaft and the tooth connection
Wheel support fixed mechanism is flexibly connected.
The preferable connection gear support fixed mechanism is connecting rod, and the bearing of the connecting shaft is arranged on the connecting rod
On.
Preferably, the connection gear support fixed mechanism is cylinder, and the cylinder is arranged on the circle of the first gear
In the inner space of annular, and between the first gear and the second gear, the bearing of the connecting shaft is arranged on
The cylinder.
Preferably, the connecting shaft supports fixed mechanism to be connected by bearing with the connection gear, is the outer of bearing
Side face is fixedly connected with connection gear support fixed mechanism, and the connecting shaft is located in the bearing and can be along the company
The longitudinal center line rotation of spindle.
Preferably, the inner surface of the annular of the first gear is along inwall to the side of the teeth away from the first gear
To extend and formed cone transmission axle connecting portion, one end of the teeth of the transmission axle connecting portion away from the first gear
It is fixedly connected with the first transmission axle.
Preferably, the first gear and the second gear are located at the both sides of the connection gear respectively, and described the
The teeth of the teeth of one gear and the second gear are oppositely arranged, the rotation direction phase of the first gear and second gear
Instead.
The utility model additionally provides a kind of speed changer, and the speed changer includes gear described in the utility model.
The beneficial effects of the utility model：Driving gear, driven gear and the connection gear of described gear are led to
The arrangement mode of the arrangement mode substitution tiling of three-dimensional stacking is crossed, position relationship is more compact, makes the overall body of the gear
Product is small；In addition, the connection gear is provided with the first teeth and the second teeth, by the mould for changing the first teeth and the second teeth
Number and the number of teeth, make the first teeth be engaged with first gear, are engaged the second teeth and second gear, therefore the utility model
The gearratio of adjustment first gear and second gear is more convenient.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the stereogram of the gear of embodiment 1 in the utility model；
Fig. 2 is the front view of the gear of embodiment 1 in the utility model；
Fig. 3 is that the connection gear support fixed mechanism of embodiment 1 in the utility model is the structure of the speed changer of cylinder
Schematic diagram；
Fig. 4 is the structural representation of the gear of embodiment 2 in the utility model.
Embodiment
, below will be to technology of the present utility model to make the purpose of this utility model, technical scheme and advantage clearer
Scheme is described in detail.Obviously, described embodiment is only the utility model part of the embodiment, rather than all
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
Resulting all other embodiment is put, belongs to the scope that the utility model is protected.
Embodiment 1
As shown in Figure 1-2, the utility model provides a kind of gear, including first gear 1, second gear 2 and
One of them is driving gear for both connection gear, described first gear 1 and second gear 2, and it is driven tooth that both are wherein another
Wheel, the power intake of the driving gear can be connected with power take-off mechanism, the clutch end energy of the driven gear
It is connected with power input mechanism；The power intake of the driving gear is connected with power take-off mechanism and the driven tooth
When the clutch end of wheel is connected with power input mechanism the driving gear can be driven by the connection gear it is described from
Moving gear is rotated to change the rotating speed and/or moment of torsion that the power take-off mechanism exports to the power input mechanism；
The pivot center of the second gear 2 runs through the central area of the first gear 1, and the second gear 2 exists
Orthographic projection on its pivot center direction is located within the first gear 1；
Orthographic projection of the part or all of teeth of the connection gear on the pivot center direction of first gear 1 is located at
Within the first gear 1；
The first gear 1, the second gear 2 and the connection gear three are bevel gear, the tooth connection
The first teeth on wheel engage with the first gear 1, and the second teeth in the connection gear are meshed with second gear 2；
The same sidepiece of gear where teeth in the first gear 1 are respectively positioned on it with the teeth in the second gear 2.This practicality
The arrangement mode that driving gear, driven gear and the connection gear of new described gear are stacked by solid substitutes flat
The arrangement mode of paving, position relationship is more compact, makes the overall small volume of the gear；In addition, set in the connection gear
There are the first teeth and the second teeth, by changing the modulus and the number of teeth of the first teeth and the second teeth, make the first teeth and first
Gear is engaged, be engaged the second teeth and second gear, therefore the utility model adjustment first gear and second gear
Gearratio is more convenient.According to being actually needed, it is necessary to when expanding rotating speed, second gear is driven as driving gear by first gear 1
2 rotate, and drive the first gear 1 to rotate as driving gear by second gear 2 when needing to reduce rotating speed, i.e., as needed
Adjust rotation direction.
As optional embodiment, the first gear 1 is identical with the rotation direction of second gear 2, according to actual need
The rotation direction of first gear 1 or second gear 2 can be adjusted, i.e., selection is rotated counterclockwise or turned clockwise as needed
It is dynamic.
As optional embodiment, the first gear 1 is annular, and the internal diameter of the annular is more than described second
The external diameter of gear 2, and be arranged in the inner space of the annular of the first gear 1, first gear 1 and second gear 2
In the homonymy of the connection gear, the first gear 1 is identical with the rotation direction of second gear 2, and the second gear 2 is located at
In the inner space of first gear 1, make both space-consumings smaller.
As optional embodiment, the connection gear includes the first fifth wheel 3 and the second fifth wheel 4, and described first
Fifth wheel 3 is fixedly connected with the second fifth wheel 4 by connecting shaft 34, and first teeth are located at first fifth wheel 3, described
Second teeth are located at second fifth wheel 4, and first fifth wheel 3 is nibbled by the first teeth and the first gear 1
Close, second fifth wheel 4 is engaged by the second teeth with the second gear 2.First teeth and the second teeth are set respectively
Put on two gears, two gears are connected by connecting shaft 34, so more convenient to be fixedly connected with gear, preferably realize connection
The rotation of gear.
As optional embodiment, according to the structure and size of connection gear, the number of connection gear can be selected, such as
Fruit connection gear sound construction, torque resistant ability is strong, can also realize whole function of joint with one, otherwise, connection gear can
To select two or three or more than three, to increase torque resistant ability, the durability of the gear is improved.
As optional embodiment, the gear also includes connection gear support fixed mechanism, the connecting shaft
34 are flexibly connected with connection gear support fixed mechanism.The connection gear support fixed mechanism is used to support described in fixation
Connection gear.
As optional embodiment, the connecting shaft 34 supports fixed mechanism to connect by bearing 5 and the connection gear
Connect, be that the outer peripheral face of bearing 5 is fixedly connected with connection gear support fixed mechanism, the connecting shaft 34 is located at the axle
Hold in 5 and can be along the longitudinal center line rotation of the connecting shaft 34.
As optional embodiment, the inner surface of the annular of the first gear 1 is along inwall to away from described first
The direction of the teeth of gear 1 extends and forms the transmission axle connecting portion 11 of cone, and the transmission axle connecting portion 11 is away from described
One end of the teeth of first gear 1 is fixedly connected with the first transmission axle 12.Transmission axle connecting portion 11 is used to connect the first gear 1
With the first transmission axle 12, the position and structure of the transmission axle connecting portion 11 avoid the rotation to second gear and connection gear
Interference.
As optional embodiment, the second gear is connected with the second transmission axle 21, second transmission axle 21
Bearing of trend is opposite with the bearing of trend of first transmission axle 12.
Embodiment 2
As shown in figure 4, the present embodiment and the difference of embodiment 1 are：The first gear 1 and the second gear 2 are distinguished
Positioned at the both sides of the connection gear, and the teeth of the teeth of the first gear 1 and the second gear 2 are oppositely arranged, institute
It is opposite with the rotation direction of second gear 2 to state first gear 1.The gear of the present embodiment can change power intake
With the rotation direction of clutch end, such as reversing automobile function is realized.
The utility model additionally provides a kind of speed changer, and the speed changer includes gear described in the utility model.
As optional embodiment, the speed changer also includes shell, the power input shaft of speed changer, transmission power
Output shaft and switching device, the gear are arranged on the enclosure, as needed, by by the speed changer
Power input shaft is connected with the power intake of required gear, by the power output shaft of the speed changer with it is required
Gear clutch end connect, it is necessary to when changing rotating speed or moment of torsion, the speed changer is being switched by switching device
Power input shaft and transmission power output axis connection gear.
As optional embodiment, as shown in figure 3, connection gear support fixed mechanism is cylinder 52, the circle
In the inner space for the annular that cylinder 52 is arranged on the first gear 1, and it is located at the first gear 1 and the second gear
Between 2, the bearing 5 of the connecting shaft 34 is arranged on the cylinder 52, and the cylinder 52 passes through connector 54 and the shell
It is fixedly connected.
As optional embodiment, as shown in figure 4, connection gear support fixed mechanism is connecting rod 51, the company
One end of bar 51 is fixedly connected with the shell, and the other end is fixedly connected with the bearing 5 of the connecting shaft 34.
It is described above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (10)
- A kind of 1. gear, it is characterised in that including first gear (1), second gear (2) and connection gear, described One of them is driving gear for both one gear (1) and second gear (2), and it is driven gear that both are wherein another, the active The power intake of gear can be connected with power take-off mechanism, and the clutch end of the driven gear can input machine with power Structure is connected；The power intake of the driving gear is connected with power take-off mechanism and the power output of the driven gear End when being connected with power input mechanism the driving gear can be driven by the connection gear driven gear rotation with Change rotating speed and/or moment of torsion that the power take-off mechanism exports to the power input mechanism；The pivot center of the second gear (2) runs through the central area of the first gear (1), and the second gear (2) Orthographic projection on its pivot center direction is located within the first gear (1)；Orthographic projection of the part or all of teeth of the connection gear on the first gear (1) pivot center direction is located at institute State within first gear (1)；The first gear (1), the second gear (2) and the connection gear three are bevel gear, the tooth connection The first teeth on wheel are engaged with the first gear (1), and the second teeth in the connection gear are mutually nibbled with second gear (2) Close；The same side of gear where teeth on the first gear (1) are respectively positioned on it with the teeth in the second gear (2) Portion.
- 2. gear according to claim 1, it is characterised in that the first gear (1) is annular, the annulus The internal diameter of shape is more than the external diameter of the second gear (2), and the second gear (2) is arranged on the circle of the first gear (1) In the inner space of annular, first gear (1) and second gear (2) are located at the homonymy of the connection gear, the first gear (1) it is identical with the rotation direction of second gear (2).
- 3. gear according to claim 1, it is characterised in that the connection gear include the first fifth wheel (3) and Second fifth wheel (4), first fifth wheel (3) are fixedly connected with the second fifth wheel (4) by connecting shaft (34), and described first Teeth are located at first fifth wheel (3), and second teeth are located at second fifth wheel (4), first fifth wheel (3) Engaged by the first teeth with the first gear (1), second fifth wheel (4) passes through the second teeth and the second gear (2) engage.
- 4. gear according to claim 3, it is characterised in that it is solid that the gear also includes connection gear support Determine mechanism, the connecting shaft (34) is flexibly connected with connection gear support fixed mechanism.
- 5. gear according to claim 4, it is characterised in that the connection gear support fixed mechanism is connecting rod (51), the bearing (5) of the connecting shaft (34) is arranged on the connecting rod (51).
- 6. gear according to claim 4, it is characterised in that the connection gear support fixed mechanism is cylinder (52), in the inner space for the annular that the cylinder (52) is arranged on the first gear (1), and it is located at the first gear (1) between the second gear (2), the bearing (5) of the connecting shaft (34) is arranged on the cylinder (52).
- 7. gear according to claim 4, it is characterised in that the connecting shaft (34) by bearing (5) with it is described Connection gear support fixed mechanism connection, it is that the outer peripheral face of bearing (5) and connection gear support fixed mechanism fixation connect Connect, the connecting shaft (34) is located in the bearing (5) and can be along the longitudinal center line rotation of the connecting shaft (34).
- 8. gear according to claim 2, it is characterised in that the inner surface of the annular of the first gear (1) Extend along inwall to the direction of the teeth away from the first gear (1) and form the transmission axle connecting portion (11) of cone, institute The one end for stating teeth of the transmission axle connecting portion (11) away from the first gear (1) is fixedly connected with the first transmission axle (12).
- 9. gear according to claim 1, it is characterised in that the first gear (1) and the second gear (2) It is located at the both sides of the connection gear respectively, and the teeth of the teeth of the first gear (1) and the second gear (2) are relative Set, the rotation direction of the first gear (1) and second gear (2) is opposite.
- 10. a kind of speed changer, it is characterised in that the speed changer includes the gear as described in claim 1-9 is any.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721198952.4U CN207178591U (en) | 2017-09-18 | 2017-09-18 | Gear and speed changer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721198952.4U CN207178591U (en) | 2017-09-18 | 2017-09-18 | Gear and speed changer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207178591U true CN207178591U (en) | 2018-04-03 |
Family
ID=61746935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721198952.4U Active CN207178591U (en) | 2017-09-18 | 2017-09-18 | Gear and speed changer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207178591U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504134A (en) * | 2017-09-18 | 2017-12-22 | 彭震远 | Gear and speed changer |
-
2017
- 2017-09-18 CN CN201721198952.4U patent/CN207178591U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504134A (en) * | 2017-09-18 | 2017-12-22 | 彭震远 | Gear and speed changer |
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