CN202560861U

CN202560861U - Structure for connecting expansion sleeve through double taper rings without damaging transmission shaft

Info

Publication number: CN202560861U
Application number: CN201220239921XU
Authority: CN
Inventors: 雷永志; 艾奇
Original assignee: SICHUAN DAWN MACHINERY CO Ltd
Current assignee: Sichuan Cpt Precision Industry Science & Technology Co Ltd
Priority date: 2012-05-25
Filing date: 2012-05-25
Publication date: 2012-11-28
Anticipated expiration: 2022-05-25

Abstract

The utility model discloses a structure for connecting an expansion sleeve through double taper rings without damaging a transmission shaft. The structure comprises a left inner taper sleeve (8), a right inner taper sleeve (1) and an outer taper sleeve (3). A concave ring cavity (10) is arranged on the inner wall of the outer taper sleeve (3), a protruding ring A (9) and a protruding ring B (11) are arranged on the left inner taper sleeve (8) and the right inner taper sleeve (1) which are matched with the concave ring cavity (10) in the outer taper sleeve (3) through the protruding ring A (9) and the protruding ring B (11) in a clamping mode, a screw hole (2) is arranged on the right inner taper sleeve (1), an assembly through hole (13) is arranged on the left inner taper sleeve (8), a screw (6) is matched with the left inner taper sleeve (8) and the right inner taper sleeve (1) through the assembly through hole (13) and the screw hole (2), contraction expansion seams (7) are arranged on the left inner taper sleeve (8) and the right inner taper sleeve (1), and an expansion seam (14) is arranged on the outer taper sleeve (3). The structure has the advantages of being free of stress concentration, high in assembly accuracy and reliable in transmission performance.

Description

A kind of bipyramid ring of harmless transmission shaft connects the expansion set structure

Technical field

The utility model relates to mechanical technology, and particularly a kind of bipyramid ring of harmless transmission shaft connects the expansion set structure.

Background technique

In the common mechanical transmission, axle is to be fixed together by key with the wheel that is enclosed within on the axle, realizes the purpose of transmitting movement moment of torsion.The key ways of connecting is simple in structure, can wheel be fixedly linked in axle well and go up and together rotate with axle, but traditional mode also must set out keyway on the wheel hub of axle and wheel; Not only weakened the mechanical strength of axle and wheel hub; And can produce stress at the position that axle and wheel hub are offered keyway and concentrate, crackle, crack even opening appear easily at the keyway place of axle or wheel hub, can directly cause mechanical failure; Have a strong impact on the proper functioning life-span of machine, maintenance cost is high.In addition, the key Placement is also become flexible than being easier to occur connecting, and influences transmission accuracy; So need often to change key, but the key Placement exists the constant defective of dismounting again, the installation or removal wheel mostly is that the mode that adopts manpower to beat bump is carried out; Waste time and energy troublesome poeration.

The model utility content

The purpose of the utility model is to overcome the shortcoming of existing technology, provides a kind of bipyramid ring of harmless transmission shaft to connect the expansion set structure, and it is simple in structure, and is easy to operate, time saving and energy saving, the mechanical strength of harmless part itself, and unstressed concentrating, installation precision is high.

The purpose of the utility model realizes through following technological scheme:

A kind of bipyramid ring of harmless transmission shaft connects the expansion set structure, and it comprises left inner conical drogue, right inner conical drogue and external conical sleeve, and the external conical sleeve inwall has been done the scrobicular ring chamber; Left side inner conical drogue and right inner conical drogue have been bulge loop A and bulge loop B respectively; And clamp with scrobicular ring chamber in the external conical sleeve through bulge loop A and bulge loop B and to cooperate, form a left side with external conical sleeve and cooperates the conical surface and the right cooperation conical surface, done screw on the right inner conical drogue; Do the assembling through hole that matches with screw on the inner conical drogue of a left side; Screw matches with left inner conical drogue and right inner conical drogue through assembling through hole and screw, has done on left inner conical drogue and the right inner conical drogue and has shunk the swelling seam, has done expansion swelling seam on the external conical sleeve.

The utlity model has following advantage: simple in structure, easy to operate, time saving and energy saving, the mechanical strength of harmless part itself, unstressed concentrating, installation precision is high, and transmission performance is reliable.

Description of drawings

Fig. 1 is the structural representation of the utility model,

Fig. 2 is the A-A view of Fig. 1.

Among the figure, the right inner conical drogue of 1-, the 2-screw, the 3-external conical sleeve, the right conical surface that cooperates of 4-, a 5-left side cooperates the conical surface, and 6-screw, 7-shrink the swelling seam, 8-left side inner conical drogue, 9-bulge loop A, 10-scrobicular ring chamber, 11-bulge loop B, the 12-transmission shaft, 13-assembles through hole, 14-expansion swelling seam.

Embodiment

Below in conjunction with accompanying drawing the utility model is done further description:

As shown in Figure 1; A kind of bipyramid ring of harmless transmission shaft connects the expansion set structure, it is characterized in that: it comprises left inner conical drogue 8, right inner conical drogue 1 and external conical sleeve 3, and external conical sleeve 3 inwalls have been done scrobicular ring chamber 10; Left side inner conical drogue 8 has been bulge loop A9 and bulge loop B11 respectively with right inner conical drogue 1; And clamp with scrobicular ring chambeies 10 in the external conical sleeve 3 through bulge loop A9 and bulge loop B11 and to cooperate, form a left side with external conical sleeve 3 and cooperates the conical surface 5 and the right cooperation conical surface 4, done screw 2 on the right inner conical drogue 1; Do the assembling through hole 13 that matches with screw 2 on the inner conical drogue 8 of a left side; Screw 6 matches with right inner conical drogue 1 with left inner conical drogue 8 through assembling through hole 13 and screw 2, has done on left inner conical drogue 8 and the right inner conical drogue 1 and has shunk swelling seam 7, has done expansion swelling seam 14 on the external conical sleeve 3.

The working procedure of the utility model is following: when wheel is installed, left inner conical drogue 8, right inner conical drogue 1 and external conical sleeve 8 integral assemblings on transmission shaft 12, and are placed in the through hole on the wheel hub; Pass assembling through hole 13 and screwing in the screw 2 with one group of screw 6, tighten screw 6, at this moment left inner conical drogue 8 is drawn close to the centre with right inner conical drogue 1 gradually; And cooperate the conical surface 5 and right the cooperation to produce squeezing action power on the conical surface 4 each other on a left side with external conical sleeve 3 respectively; Under the effect of squeezing action power, convergent-divergent seam 7 dwindles, left inner conical drogue 8 and right inner conical drogue 1 banding transmission shaft 12; Expanding the swelling seam simultaneously enlarges; External conical sleeve 3 swelling wheel hubs like this, can firmly be fixed in wheel on the transmission shaft 12; Dismounting is during wheel, unscrews and withdraws from screw 6, at this moment; Left inner conical drogue 8 and right inner conical drogue 1 are gradually to two side shiftings, and the squeezing action power that produces between left inner conical drogue 8 and right inner conical drogue 1 and the external conical sleeve 3 fades away, and shrink swelling seam 7 and expand swelling seam 14 to restore to the original state gradually; Left side inner conical drogue 8 unclamps transmission shaft 12 gradually with right inner conical drogue 1; External conical sleeve 3 unclamps wheel hub gradually, like this, can wheel be disassembled from transmission shaft.

Claims

1. the bipyramid ring of a harmless transmission shaft connects the expansion set structure; It is characterized in that: it comprises left inner conical drogue (8), right inner conical drogue (1) and external conical sleeve (3); External conical sleeve (3) inwall has been done scrobicular ring chamber (10); Left side inner conical drogue (8) and right inner conical drogue (1) have been bulge loop A (9) and bulge loop B (11) respectively; And clamp with scrobicular ring chamber (10) in the external conical sleeve (3) through bulge loop A (9) and bulge loop B (11) and to cooperate, form a left side with external conical sleeve (3) and cooperates the conical surface (5) and the right side cooperation conical surface (4), done screw (2) on the right inner conical drogue (1); Do the assembling through hole (13) that matches with screw (2) on the left side inner conical drogue (8); Screw (6) matches with left inner conical drogue (8) and right inner conical drogue (1) through assembling through hole (13) and screw (2), has done on left inner conical drogue (8) and the right inner conical drogue (1) and has shunk swelling seam (7), has done expansion swelling seam (14) on the external conical sleeve (3).