CN209990807U - Precision type plum coupling - Google Patents

Abstract

The utility model discloses a precise plum blossom coupling, which comprises a first shaft sleeve, a first screw hole, an inner hexagonal screw, a second shaft sleeve, a disassembly screw, an independent elastic buffer rubber cushion, a fixing boss, a second screw hole and a screw clamping groove, wherein four fixing bosses are annularly arranged at the edge of one end of the first shaft sleeve at equal intervals, the first shaft sleeve and the second shaft sleeve have the same structure, one ends of the first shaft sleeve and the second shaft sleeve, which are provided with the fixing bosses, are oppositely arranged, the fixing bosses of the first shaft sleeve and the second shaft sleeve are mutually staggered, the screw clamping groove is respectively arranged on the side surfaces of the first shaft sleeve and the second shaft sleeve, the first screw hole and the second screw hole are respectively arranged on the side surfaces of the first shaft sleeve and the second shaft sleeve on the two sides of the screw clamping groove, the inner hexagonal screw and the disassembly screw are respectively arranged in the first screw hole and the second screw hole in a matching way, the, the rigid transmission stability is increased, the sensitivity of the system is increased, and the servo system is more accurate.

Description

Precision type plum coupling

Technical Field

The utility model relates to a shaft coupling technical field specifically is a precision type plum blossom shaft coupling.

Background

The common plum blossom-shaped coupler is generally a rubber pad which is formed by assembling three parts, namely a shaft sleeve on two sides and a rubber pad in the middle. Although the coupler is good in rigidity and large in transmission torque, the buffering angle of the middle integrated buffering rubber cushion is small, feedback data are not accurate, the service life of the motor is shortened seriously, and in a servo system, data need to be fed back to the servo motor accurately in time, so that the precision plum coupler is very necessary to design.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a precision type plum blossom shaft coupling to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a precision type plum blossom shaft coupling, includes first axle sleeve, first screw, interior hexagonal screw, secondary shaft sleeve, dismantles screw, independent elastic buffer cushion, fixed boss, second screw and screw clamp groove, the one end edge equidistance ring of first axle sleeve is equipped with four fixed bosses, first axle sleeve is the same with the structure of secondary shaft sleeve, first axle sleeve and secondary shaft sleeve are provided with the opposite setting of the one end of fixed boss, and the fixed boss of first axle sleeve and secondary shaft sleeve is crisscross each other, screw clamp groove has all been seted up to the side of first axle sleeve and secondary shaft sleeve, and first screw and second screw have been seted up respectively to the side of the first axle sleeve on screw clamp groove both sides and secondary shaft sleeve, interior hexagonal screw and dismantlement screw are installed in the cooperation respectively in first screw and the second screw.

Furthermore, eight independent elastic buffer rubber pads are uniformly arranged between the first shaft sleeve and the second shaft sleeve in an annular mode at equal intervals.

Furthermore, both sides of the fixed boss are concave, and the radian of the fixed boss is the same as that of the surface of the independent elastic buffer rubber mat.

Furthermore, the independent elastic buffer rubber pads are respectively clamped between the two adjacent fixed bosses of the first shaft sleeve and the second shaft sleeve.

Furthermore, the screw clamping groove penetrates through the line groove and is positioned in the middle of any two adjacent fixing bosses.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: this precision type plum blossom shaft coupling, with original integrative cushion design for the polytypization by 8 independent elastic buffer cushions constitute, owing to increased buffering cushion evenly distributed like this, so the atress is even in the driven time, and the shock-absorbing capacity is bigger than integrative cushion, and feedback data receives accurately to increased the precision of shaft coupling, do not destroy original rigidity and the moment of torsion of shaft coupling again, can improve the life of motor, more can absorb the driven deviation of axle.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;

fig. 2 is an exploded view of the whole structure of the present invention;

in the figure: 1. a first bushing; 2. a first screw hole; 3. a hexagon socket head cap screw; 4. a second shaft sleeve; 5. disassembling the screw; 6. an independent elastic buffer rubber cushion; 7. fixing the boss; 8. a second screw hole; 9. a head clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a precise plum blossom coupling comprises a first shaft sleeve 1, a first screw hole 2, an inner hexagonal screw 3, a second shaft sleeve 4, a disassembly screw 5, independent elastic buffer rubber pads 6, fixing bosses 7, a second screw hole 8 and a screw clamping groove 9, wherein four fixing bosses 7 are annularly arranged at one end edge of the first shaft sleeve 1 at equal intervals, the first shaft sleeve 1 and the second shaft sleeve 4 are identical in structure, one ends of the first shaft sleeve 1 and the second shaft sleeve 4, which are provided with the fixing bosses 7, are oppositely arranged, the fixing bosses 7 of the first shaft sleeve 1 and the second shaft sleeve 4 are mutually staggered, eight independent elastic buffer rubber pads 6 are evenly annularly arranged between the first shaft sleeve 1 and the second shaft sleeve 4 at equal intervals, so that the stress is even during transmission, the buffer performance is better, two sides of the fixing bosses 7 are both concave, the radian is identical to that of the surface of the independent elastic buffer rubber pads 6, the independent elastic buffer rubber pads 6 are respectively clamped between the two adjacent fixing bosses 7 of the first shaft sleeve 1 and the second shaft sleeve 4, the precision of the coupler is improved, so that the original rigidity and torque of the coupler are not damaged, the side surfaces of the first shaft sleeve 1 and the second shaft sleeve 4 are respectively provided with a screw clamping groove 9, the side surfaces of the first shaft sleeve 1 and the second shaft sleeve 4 on two sides of the screw clamping groove 9 are respectively provided with a first screw hole 2 and a second screw hole 8, the screw clamping groove 9 penetrates through a linear groove and is positioned in the middle of any two adjacent fixing bosses 7, so that the designed holding force is tighter, the structure of the coupler is compact, the slip probability is reduced, the sensitivity of the coupler is also improved, the deviation of shaft transmission can be absorbed, and the first screw hole 2 and the second screw hole 8 are respectively provided with an inner hexagonal screw 3 and a disassembly screw 5 in a matching manner; when this precision type plum blossom shaft coupling used, insert first axle sleeve 1 and second axle sleeve 4 respectively with the transmission shaft to utilize hexagon socket head cap screw 3 to press from both sides it tight lock and die, guaranteed driven stability, when the transmission, eight independent elastic buffer cushion 6 evenly distributed make the atress even, and feedback data receives accurately, can improve the life of motor, has increased the precision of shaft coupling like this, thereby does not destroy original rigidity of shaft coupling and moment of torsion again.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a precision type plum blossom shaft coupling, includes first axle sleeve (1), first screw (2), interior hexagonal screw (3), second axle sleeve (4), dismantles screw (5), independent elastic buffer cushion (6), fixed boss (7), second screw (8) and screw clamp groove (9), its characterized in that: the utility model discloses a screw clamp, including first axle sleeve (1), first axle sleeve (4), first axle sleeve (1) and second axle sleeve (4), the one end that first axle sleeve (1) and second axle sleeve (4) were provided with fixed boss (7) is equidistant to encircle and is equipped with four fixed boss (7), first axle sleeve (1) is the same with the structure of second axle sleeve (4), the opposite setting of one end that first axle sleeve (1) and second axle sleeve (4) were provided with fixed boss (7), and first screw (2) and second screw (8) have been seted up respectively to the side of first axle sleeve (1) and second axle sleeve (4) on screw clamp groove (9) both sides, interior hexagonal screw (3) and dismantlement screw (5) are installed in the cooperation respectively in first screw (2) and second screw (8).

2. The precision type double offset ring coupling of claim 1, wherein: eight independent elastic buffer rubber pads (6) are uniformly arranged between the first shaft sleeve (1) and the second shaft sleeve (4) in an annular mode at equal intervals.

3. The precision type double offset ring coupling of claim 1, wherein: the two sides of the fixed boss (7) are both concave, and the radian of the fixed boss is the same as that of the surface of the independent elastic buffer rubber mat (6).

4. The precision type double offset ring coupling of claim 2, wherein: the independent elastic buffer rubber pads (6) are respectively clamped between the two adjacent fixed bosses (7) of the first shaft sleeve (1) and the second shaft sleeve (4).

5. The precision type double offset ring coupling of claim 1, wherein: the screw clamping groove (9) penetrates through the wire groove and is positioned in the center of any two adjacent fixing bosses (7).

Images