CN2823659Y

CN2823659Y - Drum shaped ball coupling

Info

Publication number: CN2823659Y
Application number: CNU2005200434473U
Authority: CN
Inventors: 王文杰; 荆福坤
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-07-11
Filing date: 2005-07-11
Publication date: 2006-10-04
Anticipated expiration: 2015-07-11

Abstract

The utility model relates to a drum-shaped ball coupling which is composed of an outer tooth shaft sleeve, inner tooth flange rings, a drum-shaped ball, a ball blocking ring, a rabbet positioning ring, a safety sliding sleeve and an end cover closing plate, wherein the outer surface of the outer tooth shaft sleeve and the inner surface of the inner tooth flange ring are processed into axial semi-cylindrical concave arc-shaped grooves with corresponding equal parts along the circumference. The drum-shaped ball is arranged in a cylindrical hole groove formed by the inner and the outer semi-circular tooth grooves, and the ball and the semi-circular tooth grooves are matched to realize torque transmission. The groove port point of a circular tooth groove of the external tooth shaft sleeve is provided with the ball blocking ring, and the ball is ensured to work on the same circumference line to realize synchronous aligning. The connecting point of flanges of the two inner tooth flange rings is provided with the rabbet positioning ring to control the axial flow range of the inner tooth flange rings and to avoid the phenomenon that the end cover closing board is badly knocked. The coupling provided by the utility model has characteristics of high loading capability, stable operation, good buffering performance, strong aligning capability, high transmission efficiency, long service life, simple structure, convenient maintenance, etc.

Description

The cydariform ball coupling

Technical field

The utility model relates to a kind of cydariform ball coupling, relate to mechanical transmission engineering field, be applicable to that coupking shaft and axle carry out the transmission of torque and motion, be specially adapted to transmit in the metallurgical rolling machinery in the bad working environments environment occasion that impulsive load is arranged and improve the unsteady connection of axle clamp angle aligning ability.

Background technique

On metallurgical steel rolling transmission device, be used for the parts of transferring power all the year round, mostly use gear coupling, but because the aligning ability of gear coupling, its axle clamp angle franchise≤30 ', in recent years for improving its aligning ability, use the rack barrel coupling instead more, though the axle clamp angle be adjustable to franchise≤2 ', but because the complex structure of rack barrel coupling, and at high temperature, high dust, bad working environments environment such as impulsive load is arranged down during work, the bath lubrication oil pole easily runs off, if untimely inspection is refueled, odontotripsis is fast in use, twist off tooth easily, therefore, this kind coupling not only processing and manufacturing difficulty is big, the manufacture cost height, and install numerous and diverse, increase maintenance, working life is short.

Summary of the invention

Be to design a kind of adaptation order of the present utility model and under the bad working environments environment, both had the axial displacement space, has the axle clamp of improvement angle aligning ability again, and transmitting torque is big, resiliency is good, running is steady, the periodic maintenance cost is low, the cydariform ball coupling of the model utility of long service life, low cost of manufacture.

Concrete technological scheme of the present utility model is: it mainly is made up of external tooth axle sleeve, cydariform ball, internal tooth flange circle, seam positioning ring, ball back-up ring, end cap shrouding.In the utility model, the external tooth axle sleeve stretches in the internal tooth flange circle, be processed with the axial semicolumn concave arc groove of corresponding equal portions along circumference at the internal surface of the outer surface of external tooth axle sleeve and internal tooth flange, in semicolumn concave arc groove, be provided with the cydariform ball body of certain curvature radius and certain slenderness ratio, port part at the semicolumn concave arc groove of external tooth axle sleeve is provided with the ball back-up ring, the concave arc flute length of the relative external tooth axle sleeve of semicolumn concave arc groove of internal tooth flange circle is provided with the seam positioning ring at the flange place of linking of two internal tooth flange circles.

In order further to realize this technology, add safe guide at the outer surface cover of internal tooth flange circle.Between internal tooth flange circle end and end cap, can be provided with dust ring.

The utility model and spur type, drum-shaped tooth type, steel ball ball coupling relatively have following advantage:

1, this coupling transmission is equivalent to the circular tooth gear transmission, and the tooth root circular arc is generous, and it is big that the cross section is cut in the carrying of cydariform ball, gear coupling than involute transmission has higher contact strength and flexural strength, and therefore under identical size, its bearing capacity is big, safe and reliable, long service life.

2, interior external tooth transmitting torque is to pass through the third party---the cydariform ball was realized with cooperating of concave arc teeth groove, was movingly between inside and outside curved tooth and the ball, can roll also slidably; Inside and outside tooth can be realized not having the circular pitch error and the accumulative pitch error of general gear driving pair, so its transmission efficiency height, stable working, resiliency and wearing and tearing are all good than gear coupling in conjunction with processing easily.

3, the aligning ability of the crowning of the crowning by the cydariform ball and external tooth axle sleeve flank of tooth control coupling.Therefore the cydariform ball coupling has identical aligning principle with the rack barrel coupling.The rack barrel coupling is subjected to the restriction of crowned teeth crowning formation technique, its aligning ability generally is 2 ° to the maximum, and the cydariform ball coupling can be easily the crowning of crowning by changing the cydariform ball and the external tooth axle sleeve flank of tooth adjust the aligning ability of coupling, enlarged its using scope, to satisfy different working condition requirements.

In inside and outside mark of mouth arc groove, acquire the high lithium grease of viscosity when 4, this coupling is installed and get final product lubricate, and gear coupling must be worked in oil bath, has reduced life-cycle costing consumption.

Description of drawings

The utility model is described in further detail below in conjunction with accompanying drawing,

Fig. 1 is this apparatus structure schematic representation;

Fig. 2 is the A-A sectional view among Fig. 1;

Fig. 3 is the full-enclosed structure schematic representation among Fig. 1;

Fig. 4 is a cydariform ball safety coupling structural representation;

Fig. 5 is the B-B sectional view among Fig. 4.

Embodiment

The utility model embodiment one, shown in Fig. 1-2, coupling is divided into left and right sides two halves, is made up of external tooth axle sleeve 1, cydariform ball 2, internal tooth flange circle 3, seam positioning ring 4, ball back-up ring 5, end cap shrouding 6; Be processed into the axial semicolumn concave arc groove of corresponding equal portions along circumference at the internal surface of the outer surface of external tooth axle sleeve 1 and internal tooth flange circle 3, the cydariform roller unit is in inside and outside semicolumn concave arc groove, inside and outside semicolumn curved tooth cooperation by cydariform ball 2 and external tooth axle sleeve 1 and internal tooth flange circle 3 during work contacts the realization transmitting torque, work on same contour for control cydariform ball 2 and to realize synchronous aligning, ball back-up ring 5 devices are in the port part of the semicolumn groove of external tooth axle sleeve 1, as the different device position of Fig. 1 and Fig. 3.

Embodiment two, Figure 3 shows that internal tooth flange circle is closed, are useful in high dust, the frequent impact load working condition environment full-enclosed structure pattern schematic representation of work down.

Embodiment three; Fig. 4 and shown in Figure 5 be the structural type schematic representation that is useful in the rolling machinery cydariform ball coupling that adds safety protection device that transmits the enormous impact moment of torsion; outer surface cover at internal tooth flange circle adds safe guide; safety pin 7 is cut off when transmitting torque surpasses rated torque; internal tooth flange circle 8 slides with lining 9 idle running; play the protection main transmission with by the safety of gearing; seam positioning ring 10 is installed in the two flanges place that links; play the play scope of control internal tooth flange circle, avoid impacting breaking the end cap phenomenon.

For coupling can be adapted in the workplace of larger axis angle, external tooth axle sleeve tooth portion outer surface can be designed to the cydariform spherical, to satisfy the use occasion of different angle requirements.

Claims

1, a kind of cydariform ball coupling, be divided into left and right sides two halves, formed by external tooth axle sleeve (1), cydariform ball (2), internal tooth flange circle (3), seam positioning ring (4), ball back-up ring (5), end cap shrouding (6), it is characterized in that, be processed into the axial semicolumn concave arc groove of corresponding equal portions along circumference at the internal surface of the outer surface of external tooth axle sleeve (1) and internal tooth flange circle (3), the cydariform roller unit is in inside and outside semicolumn concave arc groove, and ball back-up ring (5) device is in the port part of the semicolumn groove of external tooth axle sleeve (1).

2, cydariform ball coupling according to claim 1, it is characterized in that, the compare semicolumn concave arc groove of external tooth axle sleeve (1) of the semicolumn concave arc groove of internal tooth flange circle (3) will be grown, semicolumn concave arc groove on the external tooth axle sleeve (1) is equivalent to the length of cydariform ball (2), and the tooth portion outer surface of external tooth axle sleeve (1) is designed to cydariform sphere shape.

3, cydariform ball coupling according to claim 1 is characterized in that, adds safe guide at the outer surface cover of internal tooth flange circle (3).

4, cydariform ball coupling according to claim 1 is characterized in that, (3) the two flange places of linking also are provided with seam positioning ring (4) at internal tooth flange circle, also is provided with dust ring between internal tooth flange circle (3) end and end cap.