JPS61112823A - Shaft coupling - Google Patents

Abstract

PURPOSE:To satisfy the transmission of torque, by positioning outer cylindrical sections integrally incorporated with a cylindrical section on the outer peripheral side of a fastening ring, and by obtaining a fitting margin between the fastening ring and the outer cylindrical sections. CONSTITUTION:Outer cylindrical sections 12 integrally incorporated with a cylindrical section 11 are projected from the large diameter base end section of the cylindrical section 11 and are positioned on the outer peripheral side of fastening rings 2 so that a slight fitting margin is formed between the fastening rings 12 and the outer cylindrical section 12. This fitting margin has such dimensions that the outer peripheral surfaces of the fastening rings 2 are made in contact with the inner peripheral surface of the outer cylindrical section 12 when the diameter of the fastening rings 2 is enlarged by fastening the latter. With this arrangement, when the fastening rings 2 are fastened, shafts D is radially fastened by the cylindrical section 11 due to the tapering effect, and a torque transmitting section is obtained in this cylindrical section, thereby it is possible to set a large torque transmission.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application) The present invention relates to a shaft joint that connects to a deaf in the form of two shafts that rotate in the N direction, i.e., an original Φ11-A and a secondary shaft...117.
Prior art and its problems) This type of shaft coupling has already been proposed in Japanese Patent Application No. 11223/1983.
I am proposing No. 6.

This relates to the connecting part between the joint and the shaft of a shaft joint, and this connecting part is a cylindrical shape whose entire outer granite surface is tapered and fits onto the shaft (D)' to be connected to the inner periphery. part Toshisara K, reshiring with fIv that fits externally into this cylindrical part ULL)
The inward facing surface is a tapered surface matching the above-mentioned tapered surface.

In this one, mn linog (2) has multiple tightening bolts (
3) , (31 is a trap so that it can be tightened in the 1111 direction (large diameter side of the tapered surface), and the cylindrical part CIl
When the above-mentioned tightening is performed with the shaft (D) to be transmitted to the The portion (11) is connected in a state of transmission. Both ends of the shaft joint connect two shafts (ol, (ol
When the two shafts are connected to each other, power is transmitted through the shaft coupling.

In this conventional method, %II+[[I(D) and I of the joint
! l! Connection IH (KeII) is connected by a single core member, and
Since torque is transmitted from the shaft to the joint by tightening force in the radial direction, the transmitted torque is larger than that of conventional joints using keys or pinots, and there is no problem with eccentricity, barracks, etc.
This has the advantage of eliminating nosh.

However, in this conventional method, the cylindrical part (III) serving as the connecting part must be set to be thick enough to be tightened in the radial direction, and the burden of torque transmission is placed on this cylindrical part. Since it is a compressor, it has the disadvantage that it cannot transmit large torque.

(Technical Problem) The present invention provides an M
In the cylindrical part Llll which is tapered together with the locking ring (2), the tightening ring is tightened in the axial direction so as to be tightened in the radial direction with respect to the ant axis, and the transmission at this connection part is In order to be able to increase the torque, the object is to make it possible for the torque to be transmitted also by other parts that are integral with the cylindrical part.

(Means) The technical means of the present invention for solving the above-mentioned problems is that the outer cylindrical portion u integrated with the cylindrical portion u11 is
z) Protrude in the same direction and tighten this outer cylindrical part with the tightening ring (2)
The tightening ring and the outer cylindrical part u
A slight fitting margin is provided between the outer circumferential surface of the ring (2) and the outer cylindrical portion IIz. The inner circumferential surfaces of the inner circumferential surfaces of the inner circumferential surfaces of the inner circumferential surfaces of the inner circumferential surfaces of the inner circumferential surfaces of the inner peripheral surfaces of

(effect) The above technical means of the present invention operates as follows.

When the shaft (D+) is fitted into the cylindrical part αD, which is the connecting part between the shaft and the shaft coupling, and the tightening ring (2) is tightened, the shaft (D+) is radially tightened by the cylindrical part (11) due to the taper fitting effect. direction, and a torque transmission effect occurs in this part.

On the other hand, the diameter of the tightening ring (2) expands slightly due to the tightening. Since the fitting condition between the tub ring (2) and the outer cylinder part O2 is set to a predetermined value, the outer circumference of the tightening ring (2) is pressed against the inner circumference of the outer cylinder part O2 due to this enlarged surface area. , a torque transmission action also occurs at this press-contact portion.

Therefore, the torque transmission path from the shaft to the shaft coupling is the shaft (D+-
Cylindrical part fill - path of shaft joint, axis (D) = cylindrical part a
There are two paths: n - tightening ring (2) - outer cylinder part σ2 - shaft joint.

(T) Effect) Since the present invention has the above configuration, it has the following unique effects +il-
What do you do?

Since the torque transmission path between the shaft and the shaft R number is increased, the transmission torque can be set larger than in the conventional case.

At the initial stage of tightening the N1 attachment/g, the outer periphery of this tightening ring does not contact the outer cylindrical portion, so the torque for tightening the tightening ring is 1 and does not increase.

In the initial state, there is plenty of room to fit into the resiling cylinder with IHM, so the tightening ring easily comes off during disassembly.

(Example) Hereinafter, an example of the present invention will be described based on FIGS. 1 to 4.

In the embodiments shown in Figures 1 to 3, two shafts to be connected are connected on the same axis in a transmission-like manner, and the shaft coupling or the cylindrical body (a combination of 111 and outer cylinder s 112) is used. ing.

That is, an annular cavity (131, (131) for inserting a tightening ring is cut from both end faces of the cylindrical main body (1), and an inner cylindrical part (11), (III) and an outer part for the outer periphery are cut. Cylinder part u
z, (115 is formed.Furthermore, a plurality of through holes (N51.u!11 are formed in the partition wall 041 between the hs alicyclic cavities tl:1 and 1131, and the other annular cavity o, u: One tightening ring (2) to be inserted in i has a blank hole (21+, 121+ i), and the other tightening ring (2) has a screw hole (■) aligned with the through hole marked l+I. There are holes for tightening (31, (31k), and a through hole (15+) from the blank hole +211, t21+.

(Screw it into the screw hole (2) through N51.

The assembly of the main body (1) and tightening rings (21, (21) is fitted onto the two shafts (Dl, (D+) and the first bolt (3+, (3) is tightened.
The DJ is connected in the fishing state as shown in FIG.

In particular, in this example, tightening linog (2). (21
The outer periphery of the outer circumferential surface and the inner circumferential surface of the outer parts uz and uz are also made into a second tapered axis with a small taper, and the outer circumferential surface of the other commercial part I]ll and the inner circumferential surface of the tightening ring (2) are configured. The first taper is set to 1/2 of O. For practical K, a combination can be adopted in which the taper of the first taper is set to 1/4 and the taper of the second taper (24l is set to 1/8).With this combination, the wall thickness of the cylindrical part (Il+ is set to a specified value). When set, the shaft connection state can be confirmed with a movement amount of about 1.5 ys of one tightening ring.

At this time, leveling ring (2). (21'? Set the gap (cl) between the outer periphery of the tightening ring (2) and the outer knot 0 in the state where it cannot be tightened (initial condition) to about 0.08 to 0.1, and then , Tightening linog in rare cases (2)
The outer periphery of the outer part 1174 is pressed against the second taper of the inner periphery of the outer part 1174.

If the inner curvature of the outer #1 row and the outer periphery of the tightening ring (2) are made parallel to the shaft locking as shown in Figure 4,
It is preferable to provide a fitting margin of JIS class 7 (Hy) at the fitting portion between the two. Also in this encounter, the outer periphery of the tightening ring (2) is pressed against the outer cylindrical portion qz during tightening.

However, the configuration including the second taper f24+ has the advantage that the intended purpose can be achieved without increasing the fitting accuracy of the second taper.

direction, in this example, the respective tightening rings (2), (
A plurality of disassembly bolts +41 and +41k are screwed together with 2), and these disassembly bolts pass through the thinning ring so that their tips abut against the section 1 (141).

Therefore, when tightening bolts f3), (3)'k are loosened, these disassembly bolts (41.
Forced to escape from fl31.

Next, the third embodiment shown in FIG.
), an intermediate body (1b), and an output side connection part (lc). ), (3) A joint structure consisting of a cylindrical cap u1), an outer tubular cap Oz, and a tightening ring (2) is adopted. In this case, the cylindrical portion (7 flange portions protruding from the proximal end of 11I) has an integrally protruding external cylindrical cap 0′lI on the cylindrical portion (16l), and the 7 flange portions protrude from the proximal end of the cylindrical portion (11I). ``Bol} (
31. +31 k intervention.

Therefore, the two axes (D+) to which ωJ should be transmitted (D+ ，
If you set CD+ to the preset value, you will be completely deaf for a long time.

In particular, in this example, Oke 1 = r Boru} +31.
(3) Head (111) is a furanone (161 i1111
Since the four parts of the if mark are buried within the end face of these seven lunges, this head does not become an obstacle to the above-mentioned cutting. It can be used even in places where there are close proximity to each other.

In the following, we have described the case where the two shafts of the transmitter J are directly connected and the case where the shaft joint is equipped with an intermediate mechanism 8Is.
IIIJ-shaped 1F: Can be adopted as soon as the @1 pivot point that connects to.

Direction% cylindrical capital [11HC is. Although there is usually a slit in the axial direction, this slit is not always necessary, and may be cut as necessary depending on the magnitude and pressure of the transmitted torque.

Figure 1 is the front view of the first example of Kibori J, Figure 2 I'1
xx sectional view, FIG. 3 is a sectional view of the H-shaped store, and FIG. 4 is a sectional view of the second embodiment. FIG. 5 is a symbol 1 diagram of the third embodiment,
FIG. 6 is an explanatory diagram of a conventional example, and in the figure 111)...
...Cylindrical part 0z...Outer cylinder part OJ...
...Annular cavity (2) ...Tightening ring (3)
...Tighten with hole) (Dl...shaft (d+
...Gap agent Patent attorney Yoshi Sakagami Fuji 1 group 1 fx] 11)

Claims (1)

[Claims] The connecting part between the shaft and the joint is a cylindrical part (11) with a tightening ring (2) tapered fitted on the outer periphery, and by tightening the tightening ring in the axial direction, the cylindrical part (11) is The cylindrical part (11
) from the large diameter side of the proximal end, an outer cylindrical part (■) which is integral with this cylindrical part is projected in the same direction, and this outer cylindrical part is positioned further on the outer periphery side of the tightening ring (2), and this tightening ring and Outer cylinder part (12)
A slight mating margin is provided between the
A shaft coupling configured such that the outer circumferential surface of the tightening ring (2) and the inner circumferential surface of the outer cylindrical portion (12) are brought into pressure contact with each other as the diameter of the tightening ring expands as the tightening ring tightens.