CN208311247U - Variable pitch type heterotypic gear shaft - Google Patents
Variable pitch type heterotypic gear shaft Download PDFInfo
- Publication number
- CN208311247U CN208311247U CN201820474013.6U CN201820474013U CN208311247U CN 208311247 U CN208311247 U CN 208311247U CN 201820474013 U CN201820474013 U CN 201820474013U CN 208311247 U CN208311247 U CN 208311247U
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- mandrel
- eccentric gear
- drive mechanism
- hole
- power drive
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Abstract
The utility model discloses a kind of variable pitch type heterotypic gear shafts, including the first mandrel and the second mandrel, power drive mechanism is provided between first mandrel and the second mandrel, the power drive mechanism two sides are provided with multiple S type springs, two turn of bilges of the S type spring are arranged respectively and are clamped on the first mandrel and the second mandrel, the power drive mechanism includes the first eccentric gear and the second eccentric gear, first eccentric gear is set on the first mandrel, second eccentric gear is set on the second mandrel, first eccentric gear and the second eccentric gear are symmetrical arranged, first mandrel one end and second mandrel one end are provided with mounting bracket, the first mandrel other end and the second mandrel other end are provided with lock screw.The utility model can minimize preparation, and have evacuation effect when rotating, and achievable 360 degree rotate.
Description
Technical field
The utility model relates to computer rotation shaft fields, and in particular to a kind of variable pitch type heterotypic gear shaft.
Background technique
Laptop rotating shaft has also played indispensable role in the utilization of notebook, and shaft can allow notebook smooth
Folding, the design quality of shaft directly influences the quality of notebook；
Notebook size especially of today prepares more and more thinner and smaller and smaller, shows between screen and host main body
Reserved spatial joint clearance has also been compressed to minimum space, and existing shaft is typically all rubbing when providing rotation with several elastic slices
It wipes power and pushes against power, to guarantee to open and close effect at any angle, and shaft volume-diminished, cause elastic slice installation space also to subtract therewith
It is small, it has to reduction is made to quantity, leads to not reach required frictional force and pushes against power, and when opening and closing rotation,
Since size is thinning, it will lead to rotation and hinder, be unable to reach the effect of 360 degree of rotations.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of variable pitch type heterotypic gear shafts, can minimize system
It is standby, and there is when rotating evacuation effect, achievable 360 degree rotate.
In order to solve the above-mentioned technical problem, the utility model provides a kind of variable pitch type heterotypic gear shaft, including first
Mandrel and the second mandrel are provided with power drive mechanism, the power drive mechanism between first mandrel and the second mandrel
Two sides are provided with multiple S type springs, and two turn of bilges of the S type spring are arranged respectively and are clamped in the first mandrel and the second core
On axis, the power drive mechanism includes the first eccentric gear and the second eccentric gear, and first eccentric gear is set in the
On one mandrel, second eccentric gear is set on the second mandrel, and first eccentric gear and the second eccentric gear are symmetrical
Setting, first mandrel one end and second mandrel one end are provided with mounting bracket, the first mandrel other end and second
The mandrel other end is provided with lock screw.
Further, between the mounting bracket and adjacent S type spring and the power drive mechanism and two sides phase
It is provided with limit plate between adjacent S type spring, first shaft hole and the second axis hole, the first axle are provided on the limit plate
Hole is for being set in the first mandrel, and the first shaft hole is for being set in the second mandrel, the first shaft hole and the second axis
Hole is oblong hole.
Further, standstill face, first eccentric gear and are provided on first mandrel and the second mandrel
Rotation stop hole is provided on two eccentric gears, the standstill face and rotation stop hole cooperate rotation stop.
Further, the first mandrel and the second mandrel, which are located on corresponding mounting bracket one end, is provided with limiting stand.
The utility model has the beneficial effects that
By the setting of S type spring, so that there is tightening force close to each other between the first mandrel and the second mandrel, and
Also there is chucking power radially when the first mandrel and the second mandrel rotate, meet required frictional force and push against power；
Using the first eccentric gear and the second eccentric gear as power drive mechanism, when relatively rotating, first is eccentric
The spacing of shaft between gear and the second eccentric gear can become larger or gradually become smaller, therefore reach evacuation effect,
Realize the effect of full angle rotation.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the perspective view of the explosion of the utility model；
Fig. 3 is the power drive mechanism schematic diagram of the utility model；
Fig. 4 is the S type spring schematic diagram of the utility model；
Fig. 5 is the limit plate schematic diagram of the utility model.
Specific embodiment
The utility model is described in further detail in the following with reference to the drawings and specific embodiments, so that those skilled in the art
The utility model may be better understood and can be practiced, but illustrated embodiment is not as the restriction to the utility model.
Referring to figs. 1 to 4, an embodiment of the variable pitch type heterotypic gear shaft of the utility model, including the first core
Axis 1 and the second mandrel 2, are provided with power drive mechanism 3 between the first mandrel and the second mandrel, power drive mechanism two sides are all provided with
Multiple S type springs 4 are equipped with, two turn of bilges 41 of S type spring are arranged respectively and are clamped on the first mandrel and the second mandrel, pass through
The setting of power drive mechanism, S type spring can generate tightening force close to each other between the first mandrel and the second mandrel, and
And also there is chucking power radially when the first mandrel and the second mandrel rotate, meet required frictional force and pushes against power；
Power drive mechanism includes that the first eccentric gear 5 and the second eccentric gear 6, the first eccentric gear are set on the first mandrel, the
Two eccentric gears are set on the second mandrel, and the first eccentric gear and the second eccentric gear are symmetrical arranged, and being symmetrical arranged can make
It obtains and is rotating constantly, the spacing of the shaft between the first eccentric gear and the second eccentric gear can become larger or gradually become
Small, in notebook overturning, spacing is become larger, and reaches evacuation effect, and in closure, spacing reaches minimum, therefore can
It realizes gapless effect between frivolous laptop, realizes the rotation of full angle.
Above-mentioned first mandrel one end and second mandrel one end is provided with mounting bracket 7, the first mandrel other end and
The two mandrel other ends are provided with lock screw 8, and mounting bracket is used to connect the auxiliary agent and screen portions of laptop, locking
Nut is then by S type spring and power drive mechanism locking on first mandrel one end and the second mandrel.
Wherein, the first mandrel and the second mandrel, which are located on corresponding mounting bracket one end, is provided with limiting stand 11, with
Lock screw cooperation limit, avoids mounting bracket stress.
In order to improve installation effectiveness and reduce use cost, standstill face is provided on the first mandrel and the second mandrel
12, rotation stop hole 13 is provided on the first eccentric gear and the second eccentric gear, it is i.e. composable by being arranged, also facilitate S type bullet
The installation of spring, after installation, standstill face and rotation stop hole cooperate rotation stop, achieve the effect that synchronous rotation.
Referring to Fig.1 and shown in 5, between mounting bracket and adjacent S type spring and power drive mechanism is adjacent with two sides
S type spring between be provided with limit plate 9, be provided with first shaft hole and the second axis hole on limit plate, first shaft hole is for covering
It being located on the first mandrel, for first shaft hole for being set in the second mandrel, first shaft hole and the second axis hole are oblong hole 10,
Limit plate can play effective keeping parallelism effect, improve rotational stability when the first mandrel and the second mandrel rotate, and
Oblong hole can give mobile guide when avoiding movement.
Embodiment described above is only preferred embodiments for fully illustrating the utility model, the utility model
Protection scope it is without being limited thereto.Those skilled in the art made equivalent substitute or change on the basis of the utility model
It changes, both is within the protection scope of the present invention.The protection scope of the utility model is subject to claims.
Claims (4)
1. a kind of variable pitch type heterotypic gear shaft, which is characterized in that including the first mandrel and the second mandrel, first mandrel and
Power drive mechanism is provided between second mandrel, the power drive mechanism two sides are provided with multiple S type springs, the S
Two turn of bilges of type spring are arranged respectively and are clamped on the first mandrel and the second mandrel, and the power drive mechanism includes first
Eccentric gear and the second eccentric gear, first eccentric gear are set on the first mandrel, and second eccentric gear is arranged
On the second mandrel, first eccentric gear and the second eccentric gear are symmetrical arranged, first mandrel one end and the second core
Axis one end is provided with mounting bracket, and the first mandrel other end and the second mandrel other end are provided with lock screw.
2. variable pitch type heterotypic gear shaft as described in claim 1, which is characterized in that the mounting bracket and adjacent S type
Limit plate, the limit plate are provided between spring and between S type spring that the power drive mechanism is adjacent with two sides
On be provided with first shaft hole and the second axis hole, for being set in the first mandrel, the first shaft hole is used for the first shaft hole
It is set on the second mandrel, the first shaft hole and the second axis hole are oblong hole.
3. variable pitch type heterotypic gear shaft as described in claim 1, which is characterized in that on first mandrel and the second mandrel
Be provided with standstill face, be provided with rotation stop hole on first eccentric gear and the second eccentric gear, the standstill face with only
Turn hole cooperates rotation stop.
4. variable pitch type heterotypic gear shaft as described in claim 1, which is characterized in that the first mandrel and the second mandrel are located at pair
Limiting stand is provided on the mounting bracket one end answered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820474013.6U CN208311247U (en) | 2018-04-04 | 2018-04-04 | Variable pitch type heterotypic gear shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820474013.6U CN208311247U (en) | 2018-04-04 | 2018-04-04 | Variable pitch type heterotypic gear shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208311247U true CN208311247U (en) | 2019-01-01 |
Family
ID=64719188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820474013.6U Active CN208311247U (en) | 2018-04-04 | 2018-04-04 | Variable pitch type heterotypic gear shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208311247U (en) |
-
2018
- 2018-04-04 CN CN201820474013.6U patent/CN208311247U/en active Active
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