A kind of lens barrel balanced controls
Technical field
The present invention relates to a kind of lens barrel balanced controls, mirror can be ensured particularly to one kind under any anglec of rotation of lens barrel
The balanced controls of cylinder barycentre steadiness, belong to astronomical telescope equipment technical field.
Background technology
Telescope is a kind of visual optical instrument for observing remote object, the subtended angle of distant objects very little can be pressed
Certain multiplying power is amplified, and is allowed to there is larger subtended angle in space, makes the object that originally cannot with the naked eye see clearly or differentiate become clear
Clear distinguishable.So, telescope is indispensable instrument in astronomy and ground observation.It is a kind of by object lens and eyepiece make into
The collimated light beam the penetrated optical system that still keeping parallelism projects, but existing large telescope does not have lens barrel balanced controls, and
The length of lens barrel is again long, and using in rotary course, the center of gravity of lens barrel can become at any time with the change of adjustment angle
Change, unstable situation easily occurs it is impossible to be balanced in time in focusing, the precision using and measuring of impact telescope
With the track up to target.
Therefore, design and can ensure lens barrel under any anglec of rotation of lens barrel for overcoming the shortcomings of above-mentioned technology
The balanced controls of barycentre steadiness, exactly those skilled in the art problem to be solved.
Content of the invention
For the deficiencies in the prior art, the technical problem to be solved is how to provide a kind of lens barrel balancing machine
Structure, its reasonable in design, easy to use, can ensure that the balance of lens barrel center of gravity is steady under any anglec of rotation of lens barrel
Gu.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of lens barrel balanced controls are it is characterised in that this lens barrel balanced controls includes one is used for fixedly mounting telescope
The fixed pedestal of cylinder, the upper surface of described fixed pedestal is vertically arranged with two stators, and the symmetrical interval of this two stators sets
Put, lens barrel is arranged between this two stators;
The outside of described stator is provided with balanced component, described balanced component include the first elastic component, the second elastic component,
First slide rail and the second slide rail, one end of described first elastic component is fixedly connected with one end of the second elastic component, and described first
The other end of elastic component is slidably connected with the first slide rail, and the other end of described second elastic component and the second slide rail are slidably connected, when
During lens barrel rotation, the first elastic component, the second elastic component slide relatively along the first slide rail and the second slide rail respectively.
As one of the preferred embodiments of the invention, described first elastic component and the second elastic component are arranged in a mutually vertical manner,
Described first elastic component and the first slide rail are arranged in a mutually vertical manner, and described second elastic component and the second slide rail are arranged in a mutually vertical manner.
As one of the preferred embodiments of the invention, one end that described first elastic component is connected with the first slide rail is provided with
First sleeve, described first sleeve is set on described first slide rail.
It is furthermore preferred that one end that described second elastic component is connected with the second slide rail is provided with the second sleeve pipe, described second set
Pipe box is located on described second slide rail.
Further say, described first elastic component and the second elastic component are extension spring.
Preferably, the bottom of described fixed pedestal is additionally provided with a plurality of legs.
Preferably, described two stators are arranged at the side of described fixed pedestal upper surface.
Compared with prior art, the beneficial effects of the present invention is:
Present configuration is reasonable in design, and during horizontality, two elastic components are all in the maximum state of pulling force, now permissible
The weight of balance lens barrel;When lens barrel rotate an angle after, two elastic components in the presence of elastic force, respectively along slide rail direction phase
To slip, the elastic force of elastic component also can change accordingly simultaneously, but the total torque of two elastic components just balances lens barrel weight institute
The torque producing, the balance such that it is able to ensureing lens barrel center of gravity under any anglec of rotation of lens barrel consolidates, and smoothly ensures to hope
The precision of remote mirror measurement and the track up to target, have extraordinary practical value.
Brief description
In order to be illustrated more clearly that present configuration feature and technical essential, right with reference to the accompanying drawings and detailed description
The present invention is described in detail.
Fig. 1 is a kind of structural front view of the lens barrel balanced controls disclosed in the embodiment of the present invention.
Fig. 2 is a kind of operation principle schematic diagram of the lens barrel balanced controls disclosed in Fig. 1.
When Fig. 3 is that lens barrel is horizontally situated, a kind of application state schematic diagram of the lens barrel balanced controls disclosed in Fig. 1.
When Fig. 4 is that lens barrel is located at 45 ° of positions, a kind of application state schematic diagram of the lens barrel balanced controls disclosed in Fig. 1.
When Fig. 5 is that lens barrel is located at 90 ° of positions, a kind of application state schematic diagram of the lens barrel balanced controls disclosed in Fig. 1.
Description of reference numerals:1- fixed pedestal, 2- stator, 3- lens barrel, 20- balanced component, 201- first elastic component,
201a- first sleeve, 202- second elastic component, 202a- second sleeve pipe, 203- first slide rail, 204- second slide rail, 10- leg.
Specific embodiment
Below in conjunction with accompanying drawing and a preferred embodiment, technical scheme is further described.
As shown in figure 1, being a kind of lens barrel balanced controls of the present embodiment, it includes one and is used for fixedly mounting lens cone for telescope
3 fixed pedestal 1, the upper surface of described fixed pedestal 1 is vertically arranged with two stators 2, and this two stators 2 are symmetrically spaced
Setting, and it is arranged at the side of described fixed pedestal 1 upper surface;Lens barrel 3 is arranged between this two stators 2, described fixation
The bottom of pedestal 1 is additionally provided with a plurality of legs 10, for supporting whole mechanism.
The outside of described stator 2 is provided with balanced component 20, described balanced component 20 include the first elastic component 201,
Two elastic components 202, the first slide rail 203 and the second slide rail 204, described first elastic component 201 and the second elastic component 202 are preferably
Extension spring.Described first elastic component 201 and the second elastic component 202 are arranged in a mutually vertical manner, one end of described first elastic component 201 and the
One end of two elastic components 202 is fixedly connected.
Described first elastic component 201 and the first slide rail 203 are arranged in a mutually vertical manner, and described first elastic component 201 and first is sliding
One end that rail 203 connects is provided with first sleeve 201a, and described first sleeve 201a is set on described first slide rail 203, real
It is existing that both are slidably connected.
Described second elastic component 202 and the second slide rail 204 are arranged in a mutually vertical manner, and described second elastic component 202 and second is sliding
One end that rail 204 connects is provided with the second sleeve pipe 202a, and described second casing pipe sleeve 202a is located on described second slide rail 204, real
Show both be slidably connected.
When lens barrel 3 rotates, the first elastic component 201, the second elastic component 202 are sliding along the first slide rail 203 and second respectively
Rail 204 slides relatively, keeps the gravity balance of lens barrel 3.
As shown in Fig. 2 its operation principle is:
Wherein, the first elastic component, the second elastic component coefficient of elasticity are k, and lens barrel gravity is g, and the lens barrel anglec of rotation is a, A →
B is the glide direction of the first elastic component, and D → C is the glide direction of the second elastic component,
During lens barrel level:I.e. during a=0, now torque balance:T=k*r*r=g*R
After lens barrel rotational angle a, torque balance is analyzed as follows:
F1=k*r*(1-sina);h1=r*sina
F2=k*r*cosa;h2=r*cosa
Torque T1=F1*h2=k*r*r* (1-sina) cosa
Torque T2=F2*h1=k*r*cosa*r*sina
Torque sum that the left side is counterclockwise:T is inverse=T1+T2=k*r*r*cosa
The right clockwise torque:T is suitable=g*R*cosa
Because of k*r*r=g*R
Therefore:T is suitable=and T is inverse, i other words, left and right torque is equal, and lens barrel can be with self-balancing, under any anglec of rotation of lens barrel all
Can guarantee that the balance of lens barrel center of gravity consolidates.
As shown in figure 3, when lens barrel 3 is in horizontality, two elastic components are all in the maximum state of pulling force, now permissible
The weight of balance lens barrel;As shown in figure 4, when lens barrel 3 rotates an angle, when such as 45 °, two elastic components are in the effect of elastic force
Under, relatively slide along respective slide rail direction respectively, the elastic force of elastic component also can change accordingly simultaneously, but two elastic components is total
Torque just balances the torque produced by weight of lens barrel 3;As shown in figure 5, be in view when 90 ° for lens barrel 3.
In sum, present configuration is reasonable in design, can ensure lens barrel center of gravity under any anglec of rotation of lens barrel
Balance consolidate, smoothly ensure precision and the track up to target of telescope measurement, there is extraordinary practical value.
Above-described embodiment only technology design to illustrate the invention and feature, its object is to allow person skilled in the art
Scholar will appreciate that present disclosure and implements according to this, can not be limited the scope of the invention with this, all according to the present invention
Equivalence changes or modification that spirit is made, all should be included within the scope of the present invention.