CN202597499U - Hexagonal prism hole round bead positioning internal and external thread universal joint - Google Patents

Abstract

The utility model aims at providing a universal joint which can not only pass through a small hole, but also be telescopic and suitable for transfer of micro-deflection torque. According to a hexagonal prism hole round bead positioning internal and external thread universal joint, an external hexagonal prism connecting shaft is in telescopic fit with an internal hexagonal hole connecting shaft, and the outer end of the external hexagonal prism connecting shaft is connected with an input external thread joint through a square cross block in the form of a cross joint; and the outer end of the internal hexagonal hole connecting shaft is connected with an output internal thread joint through the other square cross block in the form of the cross joint. The improvement is as follows: a row of small semi-circular holes are formed in the hexagonal prism surface of the internal hexagonal hole connecting shaft; a round bead hole is formed in the internal hexagonal hole surface of the internal hexagonal hole connecting shaft, and a rabbet edge circle is arranged at the inner end of the round bead hole; and a bead hole plug is arranged at the outer end of the round bead hole, one end of a small spring, which is arranged in the round bead hole, is close to the bead hole plug, and the other end of the small spring pushes against a small round bead.

Description

A kind of six prismatic hole circle pearl location internal and external threads universal joints

Technical field

The utility model belongs to a kind of universal joint of transferring rotational motion, particularly a kind ofly can pass through aperture, and flexible again can also adapt to the transmitting torque universal joint of small deflection, specifically is meant a kind of six prismatic hole circle pearls location internal and external threads universal joints.

Background technique

Have high-risk special dimensions such as radiation, high temperature and poison gas to some at transmitting torque, in order to accomplish good isolation, the outer buttons rotatory force can only be through elongated aperture input, and axial length is difficult to accurately control.At present on the market, and all do not seen on the relevant scientific and technological magazine and a kind ofly desirable can pass through aperture, flexible again can also adapt to the universal joint that the small deflection moment of torsion transmits.

Summary of the invention

The purpose of the utility model provides a kind ofly can pass through aperture; Flexible again; Can also adapt to the universal joint that the small deflection moment of torsion transmits, under the good isolation outer buttons rotatory force is input to some through elongated aperture and have in the high-risk special dimensions such as radiation, high temperature and poison gas so that can be useful in.

To achieve these goals; The utility model adopts following technological scheme: a kind of six prismatic hole circle pearl location internal and external threads universal joints; Outer six prismatic coupling shafts cooperate with interior six rib hole coupling shafts are flexible, and the outer end of described outer six prismatic coupling shafts is connected with the cross shaped joint form with the outer screw joint of input through a square body cross piece; The outer end of six rib hole coupling shafts is connected with the cross shaped joint form through screw joint in another square body cross piece and the output in described, as improvement: have one to arrange the smaller part circular hole in described on six prismatic surfaces of six rib hole coupling shafts; On the interior six rib hole faces of six rib hole coupling shafts a ball hole is arranged in described, and inner end, described ball hole there is seam edge circle; Described ball outer end of hole has hole of bead plug, and little spring end in the ball hole is pasting hole of bead plug, and the other end heads on little ball.

The beneficial effect of the utility model is: adopt that outer six prismatic coupling shafts and interior six rib hole coupling shafts are flexible to be cooperated, head on little ball through the little spring in ball hole on the row of one on six prismatic surfaces smaller part circular hole and the interior six rib hole faces and contact the completion locating function of stretching with smaller part circular hole elastic force.Two square body cross pieces play the universal joint effect, have realized a kind ofly can passing through aperture that flexible again can also adapt to the transmitting torque universal joint of small deflection.The utility model is novel, and structure is unique, makes simple, easy to use.

Description of drawings

Fig. 1 is the part sectioned view of the utility model elongation state;

Fig. 2 is the part sectioned view that the utility model shortens state;

Fig. 3 is a B-B sectional drawing among Fig. 2;

Fig. 4 is the local amplification profile at little spring 88 and roundlet pearl 80 positions of living among Fig. 3;

Sectional drawing when Fig. 5 is the utility model user mode;

Fig. 6 is the stereogram of outer six prismatic coupling shafts 50;

Fig. 7 is interior six rib hole coupling shaft 30 stereograms;

Fig. 8 is the stereogram of square body cross piece 20;

Fig. 9 is an A-A sectional drawing among Fig. 2;

Figure 10 is a C-C sectional drawing among Fig. 2.

Embodiment

In conjunction with accompanying drawing and embodiment, further structure and the working principle to the utility model elaborates:

A kind of six prismatic hole circle pearl location internal and external threads universal joints; Outer six prismatic coupling shafts 50 and interior 30 flexible cooperations of six rib hole coupling shafts, the outer end of described outer six prismatic coupling shafts 50 is connected with the cross shaped joint form with the outer screw joint 70 of input through a square body cross piece 20; The outer end of six rib hole coupling shafts 30 is connected with the cross shaped joint form through the interior screw joint 10 of another square body cross piece 20 and output in described, it is characterized in that: row's smaller part circular hole 58 is arranged on six prismatic surfaces 53 of six rib hole coupling shafts 30 in described; On the interior six rib hole faces 35 of six rib hole coupling shafts 30 a ball hole 38 is arranged in described, and 38 inner ends, described ball hole there is seam edge circle 37; There is hole of bead plug 39 38 outer ends, described ball hole, and little spring 88 end in ball hole 38 is pasting hole of bead plug 39, and the other end heads on roundlet pearl 80.

Among the embodiment:

There is the axis of a cylinder square groove 56 that is symmetrical in self shaft axis the outer end of described outer six prismatic coupling shafts 50, and all there is the axis of a cylinder slotted eye 57 perpendicular to self shaft axis axis of a cylinder square groove 56 both sides; There is the hole axle square groove 32 that is symmetrical in self shaft axis coupling shaft 30 outer ends, six rib holes in described, and all there is the axial trough hole, hole 31 perpendicular to self shaft axis axle square groove 32 both sides, hole; The be slidingly matched output square groove bi-side of screw joint 10 in the output of the be slidingly matched bi-side of square body cross piece 20, axle square groove 32 bi-side, described hole, the bi-side in addition of square body cross piece 20; The be slidingly matched input square groove bi-side of the outer screw joint 70 of input of the be slidingly matched bi-side of square body cross piece 20, described axis of a cylinder square groove 56 bi-side, the bi-side in addition of square body cross piece 20.

The interior six rib hole faces 35 of six rib hole coupling shaft 30 1 ends are slidingly matched with outer six prismatic surfaces 53 of outer six prismatic coupling shaft 50 1 ends in described; And between two adjacent outer six prismatic surfaces 53 chamfer angle 55 is arranged, and the width of six rib hole faces 35 all is 1/10th of its length in six; The width of six outer six prismatic surfaces 53 all is 1/10th of its length.

An end of screw joint 10 has the output square groove identical with hole axle square groove 32 geomeries in the described output, and the other end has output internal thread 11.

One end of the outer screw joint 70 of described input has the input square groove identical with axis of a cylinder square groove 56 geomeries, and the other end has input outside thread 77.

Working principle is seen Fig. 1, Fig. 2 and Fig. 5:

Pass through the elongated clearance hole 44 of the thick and heavy divider wall 40 that width do not wait for needs; Earlier outer six prismatic coupling shafts 50 are separated with interior six rib hole coupling shafts 30; The input outside thread 77 that to import outer screw joint 70 respectively is fixedly attached to rotating power source; The output internal thread 11 of screw joint 10 is fixedly attached on the application apparatus in the output; Both sides from thick and heavy divider wall 40 are inserted into interior six rib hole face 35 1 ends and outer six prismatic surfaces, 53 1 ends the elongated clearance hole 44 respectively then, six rib hole faces 35 and outer six prismatic surfaces, 53 scalable being slidingly matched in making, but with regard to proper functioning.

The structure explanation:

Fig. 1, Fig. 2, the output square groove of screw joint 10 is identical with hole axle square groove 32 geomeries of interior six rib hole coupling shafts 30 in the output, be connected on the square body cross piece 20 through exporting 22 dislocation of four connecting pins respectively, and can be around connecting pin 22 rotations.

The input square groove of importing outer screw joint 70 is identical with axis of a cylinder square groove 56 geomeries of outer six prismatic coupling shafts 50, is connected on the square body cross piece 20 through exporting 22 dislocation of four connecting pins respectively, and can be around connecting pin 22 rotations.

The universal joint effect is played in 20 synergy of identical two the square body cross pieces of geomery, makes the utility model can also adapt to the rotation shaft coupling of small deflection.

Among Fig. 3, Fig. 4, Fig. 6, Fig. 7, row's smaller part circular hole 58 is arranged on six prismatic surfaces 53 of described interior six rib hole coupling shafts 30; On the interior six rib hole faces 35 of six rib hole coupling shafts 30 a ball hole 38 is arranged in described, and 38 inner ends, described ball hole there is seam edge circle 37; There is hole of bead plug 39 38 outer ends, described ball hole, and little spring 88 end in ball hole 38 is pasting hole of bead plug 39, and the other end heads on roundlet pearl 80.The effect of seam edge circle 37 is to guarantee roundlet pearl 80 under the thrust of little spring 88, and six rib hole faces 35 are outer in protruding falls into among the smaller part circular hole 58, but can not drop out interior six rib hole faces 35.

Among Fig. 8, described square body cross piece 20 has four shaft axis places square attachment hole 24 at grade.Six seamed edges of square body cross piece 20 all have bevel edge 26, and the diameter of square attachment hole 24 is 3 millimeters, and the length of side of square body cross piece 20 is 10 millimeters.

Among Fig. 9; Be on two orthogonal straight lines at four described square attachment holes 24; The inner of four connecting pins 22 and 24 rotatable cooperations of square attachment hole; Be in axial trough hole, hole 31 secure fit on the hole axle square groove 32 of outer end and interior six rib hole coupling shafts 30 of two connecting pins 22 on the same straight line, output slotted eye secure fit on the output square groove of screw joint 10 in the outer end that is in two connecting pins 22 on another straight line and the output.

Among Figure 10; Be on two orthogonal straight lines at four described square attachment holes 24; The inner of four connecting pins 22 and 24 rotatable cooperations of square attachment hole; Be in the outer end of two connecting pins 22 on the same straight line and axis of a cylinder square groove 56 upper prop axial trough holes 57 secure fit of outer six prismatic coupling shafts 50, import the slotted eye secure fit on the input square groove of the outer end that is in two connecting pins 22 on another straight line and the outer screw joint 70 of input.

Claims (1)

1. a prismatic hole circle pearl is located the internal and external threads universal joint; Outer six prismatic coupling shafts (50) cooperate with interior six rib hole coupling shafts (30) are flexible, and the outer end of described outer six prismatic coupling shafts (50) is connected with the cross shaped joint form with the outer screw joint of input (70) through a square body cross piece (20); The outer end of six rib hole coupling shafts (30) is connected with the cross shaped joint form through the interior screw joint (10) of another square body cross piece (20) and output in described, it is characterized in that: row's smaller part circular hole (58) is arranged on six prismatic surfaces (53) of six rib hole coupling shafts (30) in described; On the interior six rib hole faces (35) of six rib hole coupling shafts (30) a ball hole (38) is arranged in described, and inner end, described ball hole (38) there is seam edge circle (37); There is hole of bead plug (39) outer end, described ball hole (38), and little spring (88) end in ball hole (38) is pasting hole of bead plug (39), and the other end heads on little ball (80).

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