Lockable axis slim type universal joint

Technical Field

Invention relates to a lockable slim type universal joint on X and Y rotation axis independent of each.

Invention particularly relates to slim type universal joint used to transmit rotary motion in torque and/or on rotation axis generated by outlet/driving spindle on the system connected thereto into outlet/driving spindle on different axis and allowing independent locking of rotation axis.

Present State of the Art

Today, universal joints of various shapes according to areas of use (universal joint) are located on two ends of shaft depending on motion transmission system of the vehicle whereon used and are used for providing connection between output shaft and shaft and also transmit the rotary motion on X-Y rotating axis to output shaft located on different axis.

In current application, universal joints lockable axially occupying little space because of slim structure are used. However, X-Y rotating axis of said joints is not lockable independent of each. Not being capable to lock independently causes restriction of rotary motion of each.

Another current application discloses universal joints and shafts providing torque transmission wherein shafts having angular gap between axis are connected. In said application input shaft of universal cap performs universal joint motion in universal housing Pin moving inside circular channel integrated to hole in spherical hole of input spindle and located inside body provides torque transmission. Spherical structure of the universal joint used in said application is similar to present invention. However, it has a slimmer structure and it does not disclose less space occupation.

The application numbered DE102004028013A1 encountered when conducting search on the subject matter discloses a universal joint comprising hollow bearing bush and supplementary extension parts on joint yoke functioning as locking unit. The application is a universal joint having a first and a second yoke and a journal cross connecting the joint yokes with four bearing journals, each bearing journal being in a hollow cylindrical bearing bush is mounted and wherein each bearing bush by means of a securing device in a yoke is held. The application discloses a system conducting locking by means of interlocking recesses and embossing noses. However, this locking system does not disclose a locking mechanism locking X-Y rotary axis separately and providing motion of their axis independent of each other.

Another document encountered when searching the related field is the application numbered CN206889512U and it discloses a new and three-dimension universal joint. The joint disclosed under the application is produced to eliminate the disadvantages of available two-shaft joints. Said application eliminates mechanical mounting difficulty. The application is similar to present invention of slim type universal joint of lockable axis in respect to slim structure. However, it does not contain an embodiment related to lockable axis.

As a result, due to above described disadvantages and inadequacy of existing solutions, it has been necessary to make development in the related art.

Purpose of the Invention

The invention has been developed with inspiration from existing situation and aims to eliminate the above mentioned disadvantages.

Primary purpose of the invention is to transmit the torque generated by driving shaft(n) located on the system and rotary motion on X-Y axis to output shaft located on different axis.

Another purpose of the invention is to provide testing of products such as unmanned air vehicles at desired axis by connecting the vehicle to test systems without preventing free motion of the vehicles and thus prevent effects of results of tests conducted at such axis thereon thanks to independent interlockable of rotary axis.

The structural and characteristics features of the invention and all advantages will be understood better in detailed descriptions with the figures given below and with reference to the figures, and therefore, the assessment should be made taking into account the said figures and detailed explanations.

Brief Description of the Drawings

Figure 1 is an illustrative general view of lockable axis slim type universal joint of the invention. Figure 2 is an illustrative perspective view of axis universal slim type lockable joint of the invention when mounting.

Figure 3 is an illustrative perspective view of inner part of lockable axis slim type universal joint of the invention.

Figure 4 is an illustrative perspective view of central ring of inner part of lockable axis slim type universal joint of the invention when mounted.

Figure 5 is an illustrative perspective view of demounted status of central ring of axis universal slim type lockable joint of the invention.

Figure 6 is an illustrative perspective view of central ring of axis universal slim type lockable joint of the invention when mounting.

Figure 7 is an illustrative perspective view of demounted status of outer ring of axis universal slim type lockable joint of the invention.

Figure 8 is an illustrative perspective view of mounted status of outer ring of axis universal slim type lockable joint of the invention.

Figure 9 is an illustrative perspective view of central ring of axis universal slim type lockable joint of the invention when connected to driving / output shaft.

Figure 10 is another illustrative perspective view of central ring of axis universal slim type lockable joint of the invention when connected to driving / output shaft.

Description of Part References

A. Universal joint

1. Inner part

2. Central ring

2.1. Central-lower part

2.2. Central-upper part

3. Outer ring

3.1. Outer-lower part

3.2. Outer-upper part

4. Short cap pin-4 5. Short cap pin-5

6. Pin-6

7. Pin-7

8. Pin-8

9. Pin-9

10. Pin-10

11. Long cap pin-11

a- Pin hole-a

b- Pin hole-b

c- Pin hole-c

d- Pin hole-d

e- Pin hole-e

f- Pin hole-f

g- Pin hole-g

hi- Radial housing-1

h2- Radial housing-2

i- Alignment hole

j- Locking hole

k- Screw hole

m- Alignment diameter

n- Driving shaft

o- Output shaft

Detailed Description of the Invention

In this detailed description, the preferred embodiments of the lockable axis slim type universal joint being subject of the invention have been described only for purpose of better understanding of the matter. Lockable axis slim type universal joint (A) of the invention basically comprises three parts, namely, inner part (1 ), central ring (2) and outer ring (3).

Outer surface of inner part (1 ) shown in details in figure 3 and forming the very inner structure is preferably spherical while lower and upper surfaces are preferably plane. Spherical inner part (1 ) comprises

at least a screw hole (k) used for connecting output /driving shaft (o, n) on upper surface,

alignment hole (i) in centre to provide alignment of inner part (1 ) on X-Y axis, locking hole (j) on outer surface to provide locking of inner part (1 ) to X axis.

Said spherical inner part (1 ) on outer surface also comprises

pin-10 (10) located opposite locking hole-j (j) and providing alignment of inner part (1 ) to X axis and

pin-8 (8) and pin-9 (9) located facing each other in a manner locking hole (j) is between them and providing rotation of inner part (1 ) on X axis.

Central ring (2) demounted view given in figure 4 comprises two separate sections, namely, central-lower part (2.1 ) and central-upper part (2.2) between which inner part (1 ) is located and mounted symmetric to each other. Central-lower part (2.1 ) and central/upper part (2.2) are in ring form with central hollow. Inner and outer surfaces of central ring (2) are preferably spherical and lower and upper surfaces are preferably plane form. At least one screw hole (k) is formed between each pin hole (a, b, c, d) on outer surface of central ring (2) to connect output /driving (o, n) shaft and provide mounting of central-lower part (2.1 ) and central-upper part (2.2).

Pin holes of four on central lower part (2.1 ) and four on central-upper part (2.2) and facing each other, formed on inner surfaces of said central-lower part (2.1 ) and central-upper part (2.2) facing each other when central-lower part (2.1 ) and central- upper part (2.2) are mounted,)

• at least a pin hole-a (a) providing rotation of central ring (2) only on Y- axis,

• at least pin hole-b (b) located opposite pin hole-a (a), at least a pin hole- d (d) and at least a pin hole-c(c) located inside said pin-8 (8) and pin-9 (9) respectively and providing rotation of spherical inner part (1 ) on X axis and

radial housing-1 (hi ) located in same alignment as pin hole-a (a) but a distance between them.

As seen in Figure 5, central lower part (2.1 ) comprises

• pin -6 (6) connected into pin hole-a (a) and providing rotation of central ring (2) only on Y axis,

• pin -7 (7) connected into pin hole-c (c) and providing alignment of central ring (2) to Y axis.

In a preferred embodiment of the invention, radial housing-1 (hi ) and pin hole-a (a) are in same alignment but have a distance in between, pin hole-b (b) is exactly opposite to pin-a (a), pin hole-c (c) is exactly opposite to pin hole-a (a) and pin hole-b (b), pin hole-d (d) is exactly opposite pin hole-c (c) and formed at 90 degrees angle to each other.

As shown in Figure 6, spherical inner part (1 ) is located in the centre of central-lower part (2.1 ). Then central-upper part (2.2) is closed onto central-lower part (2.1 ) and mounted precisely. When conducting mounting operation,

Said pin-10 (10) is located inside radial housing - 1 (hi ) and provides alignment of spherical inner part (1 ) to X axis and

Said pin-8 (8) and pin -9 (9) are respectively located into pin hole-d (d) and pin hole-c (c) and provide rotation of spherical inner part (1 ) on X axis.

As seen in figure 7 and figure 8, the outer ring (3) whereon all parts of universal joint (A) of the invention are located comprises two separate symmetric parts namely outer-lower part (3.1 ) and outer-upper part (3.2) between which central ring (2) is placed and which are mounted symmetric to each other.

Outer surface of outer ring (3) is in spherical form and at least one screw hole (k) is formed on upper surface to connect output /driving shaft. Also alignment diameter (m) is added onto upper surface of outer ring (3). As shown in figure 7, alignment diameter (m) is used to connect output /driving shaft (o, n) to universal joint (A) axially. Said outre-lower part (3.1 ) and outer-upper part (3.2) comprises, formed on inner surfaces facing each other, facing each other when outer-lower part (3.1 ) and outer- upper part (3.2) are mounted,

• at least a pin hole-e( (e), at least a pin hole-g (g) located opposite pin hole-e,

• Pin hole -f (f) located in centre of said pin holes (e, g) and

• radial housing-2 (h2) located opposite pin hole-f (f).

As shown in figure 2, central ring (2) is mounted onto outer-lower part (3.1 ) of outer ring (3). When conducting mounting operation,

Said pin-7 (7) moves inside radial housing-2 (h2) and provides alignment of central ring (2) to only Y axis and

Said pin-6 (6) is located in pin hole-g (g) and provides rotation of central ring (2) on only Y axis.

As shown in Figure 4, universal joint (A) of the invention also comprises

short cap pin-4 (4) placed into pin hole-b (b) upon extending from pin hole-e (e) and thus providing rotation of central ring (2) on Y axis,

• short cap pin-5 (5) placed into pin hole-d (d) upon extending from pin hole-f (f) and thus providing locking of central ring (2) on Y axis,

• after passing said short cap pin-4 (4) from pin hole-b (b) and pin hole-e (e), long cap pin-11 (1 1 ) passed through pin hole-e (e) and placed into pin hole -b (b) and locking hole (j) and thus providing locking of spherical inner part (1 ) on X axis.

In a preferred embodiment of universal joint (A) disclosed under invention, inner part (1 ), central ring (2) and outer ring (3) are mounted in a manner

Locking hole (j) on inner part (1 ) is in same alignment with pin hole-b (b) on central ring (2) and pin hole -e (e) on outer ring,

Pin hole-c (c) on central ring (2) and radial housing -2 (h2) on outer ring (3) are in same alignment and Pine hole -a(a) on central ring (2) / radial housing-1 (hi ) and pin hole-f (f) on outer ring (3) are in same alignment.

Working principle of universal joint (A) of the invention:

In order to provide locking and rotation of X-Y axis independent of each other;

short cap pin-5 (5) is passed through pin hole-f (f) and pin hole-d (d) in order to provide locking of central ring (2) on Y-axis,

short cap pin-5 (5) is removed from its location and short cap pin-4 (4) is passed through pin hole-e (e) and pin hole-b (b) in order to provide rotation of central ring (2) on Y-axis,

short cap pin-4 (4) is removed from pin hole-b (b) and pin hole-e (e) and long cap pin-1 1 (1 1 ) is placed instead in a manner to reach locking hole (j) too in order to provide locking of spherical inner part (1 ) on X-axis,

pin-8 (8) and pin -9 (9) are respectively located into pin hole-d (d) and pin hole-c (c) in order to provide rotation of spherical inner part (1 ) on X axis. With universal joint (A) of the invention, torque generated by driving shaft (n) provided in the system and rotary motion on X-Y axis are transmitted to output shaft (o) located on different axis. Said universal joint (A) can also be used for connection to testing system in tests of products such as unmanned air vehicles without preventing free motion and to conduct tests on desired axis thanks to lockable feature of axis during testing.