JPH0128341Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention connects the flange of a rotating shaft joint of a torque transmission system on a rotating shaft such as a universal joint used in a steel rolling mill and the fitting on the driven side. The present invention relates to an attachment/detachment device that allows attachment/detachment with a single touch.

Prior Art Generally, universal joints, etc. are often used in rotating shaft joints of steel rolling mills, etc., and when replacing rolling rolls, it is necessary to remove and install universal joints, etc. At present, fitting, key alignment, centering, and fastening with a large number of bolts and nuts take a long time and require many workers.

Purpose of the invention The present invention solves the conventional problems as described above, and when replacing the rolling roll, etc., the connection between the rotary shaft flange such as a universal joint and the fitting can be attached and detached with one touch, and the rolling roll can be replaced with a single touch. The present invention provides a rotating shaft flange attachment/detachment device that can greatly improve work efficiency in replacement work.

Configuration of the invention The configuration of the invention will be explained based on the drawings. Fig. 1 shows an embodiment of the present invention with the main parts in cross section. The upper half sectional view shows the state when the driving shaft side and the driven shaft side are connected, and the lower half sectional view shows the attachment and detachment of the connection. Indicates a state in progress. 1 is a main body yoke connected to the drive shaft side, 2 is a flange yoke, 3 is a cross shaft, 4
5 is a flange of a flange yoke, 5 is a fitting connected to the rolling roll side on the driven side (not shown), and 6 is an attachment/detachment device of the present invention, in which the flange 4 of the flange yoke and the flange 8 of the attachment/detachment device main body 7 are connected in plural pieces. key 9 and bolt/nut 10
A rod 11 with a flange that enables movement in the axial direction is installed inside the inner diameter 15 of the attachment/detachment device main body 7,
The shaft portion 12 of the rod 11 is supported movably on the inner diameter of a support member 13 fixed to the inner diameter opening side of the attachment/detachment device main body 7, and an elastic body 16 is provided between the support member 13 and the flange end surface 14 of the rod 11. At the same time, the shaft portion 1 of the rod 11 is attached to the inner diameter of the stop plate 18 fixed to the joint end face 17 of the fitting 5.
A liner 21, which can move forward and backward in the radial direction, is supported between the stop plate 18 and a nut 22 of the threaded portion of the rod 11, and the rod 11 is moved against the elastic force of the elastic body 16. This is an attachment/detachment device for a rotating shaft flange, which is provided with a fluid pressure cylinder 30 that moves forward and backward in the axial direction.
2, and the outer diameter of the spring is loosely fitted into the inner diameter 15 of the main body 7. Also, a fluid pressure cylinder 30 is used as a means for making the rod 11 move back and forth in the axial direction against the elastic force of the plate spring that is the elastic body 16.
is used, and rod 11 is a piston rod,
24, 25 are O-rings, 26 is a fluid inlet/outlet, 2
7 is a cylinder chamber, and the main body 7 corresponds to the case of the cylinder. Note that a compression coil spring may be provided in place of the bellows spring, and the means for moving the rod 11 back and forth in the axial direction may be a device using a manual lever or handle, or may use fluid pressure. It is not limited to the means to do so. Figure 2 shows the first
This is a cross-sectional view taken from A in the figure, showing the position of the liner 21 when the drive shaft side and the driven shaft side are connected.
8 is slidably provided, and the tip of the liner pin 28 is formed into a T shape and is locked to the liner 21. FIG. 3 is also a sectional view taken from A in FIG. 1, showing the position of the liner 21 in the process of being attached to and detached from the drive shaft side and the driven shaft side, and the distance between each liner is larger than the outer diameter dimension of the nut 22. The liner pin 28 is pulled in the outer circumferential direction of the fitting 5 until the liner 21 is moved.

The present invention has the above-mentioned configuration, and includes a flange yoke 2 on the drive shaft side and a fitting 5 on the rolling roll side.
This is a rotating shaft flange attachment/detachment device that allows for one-touch connection and detachment of the rotating shaft flange.

Function: Starting from the connection state in the upper half sectional view of Figure 1, we will explain the connection release when replacing the rolling rolls in order.
Fluid pressure at an appropriate pressure is supplied to the cylinder chamber 27 from the pressure fluid inlet/outlet 26 from a fluid pressure device (not shown), and the rod 11 is moved against the elastic force of the elastic body 16 by the fluid pressure in the cylinder chamber 27. The nuts 22, which were pressing the two liners 21 against the seat plate 18 in the figure, are retracted from the end face of the liner 21, as shown in FIG.
By manually pulling the liner pin 28 in the direction of the arrow b, the liner 21 can be easily drawn toward the outer circumference, and moved to a position where the distance between each liner is larger than the outer diameter dimension of the nut 22. Next, the attachment/detachment device 6 is moved to the left in the figure by a spline or the like (not shown) provided on the main body yoke 1 to separate it from the fitting 5. At this time, the nut 22 remains attached to the rod 11 of the attachment/detachment device, passes between the liners and the inner diameter of the stop plate 18, and is pulled out from the inner diameter of the fitting 5. Note that the nut 22 is attached to the elastic body 16 in advance.
A locking pin 20 is provided, which is screwed into position so that an appropriate elastic force is exerted on the belt.
If you want to connect the rolls after replacing the rolling rolls, you can do it in the reverse order. Move the attachment/detachment device from the left side in the figure, contact the fitting 5 via the key 23 and the retaining seat plate 18, and then tighten the liner pin. 28
Push it in the direction of arrow a in Fig. 2, and press cylinder 2.
By removing the fluid pressure within 7, the attachment/detachment device main body 7 and the fitting yoke 5 are connected.

In the embodiment, the fitting 5 side is a device that can be attached and detached with one touch, but it may also be attached to the flange side of a flange yoke.

Effects of the invention The invention provides the following remarkable effects.

(1) When replacing the rolling rolls of a steel rolling mill, attaching and detaching the flange of the rotary shaft joint does not require the conventional and troublesome tightening of bolts and nuts, so the work can be done with one touch, and the work can be done by a small number of people. This allows for a significant reduction in man-hours.

(2) Since there is no variation in the tightening torque of bolts and nuts as seen in the past, there is no need to worry about instability of joints or loosening of bolts due to vibration during rotation.

(3) Since the components of the attachment/detachment device are housed inside the main body, it is compact, has complete rust and dust prevention measures, is easy to maintain, and can minimize the flange diameter of the joint end surface. (in other words, the swing diameter can be made smaller), which is also advantageous in terms of power transmission efficiency.

(4) The configuration of the attachment/detachment device is simplified and no special parts are used, so it can be manufactured at low cost.

(5) One-touch operation improves work efficiency and guarantees stable production with excellent functionality, safety, and economy.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the present invention, which is a flange attachment/detachment device for a rotary shaft joint, in which the upper half sectional view shows a connected state, and the lower half sectional view shows a state in the middle of attachment/detachment. FIG. 2 is a cross-sectional view of the upper half of FIG. 1 viewed from A, and FIG. 3 is a cross-sectional view of the lower half of FIG. 1 viewed from A. 4, 8...flange, 5...fitting,
6... detachable device, 7... detachable device main body, 11...
Rod, 12... Shaft portion, 13... Support member, 14
...Brim end surface, 15...Inner diameter, 16...Elastic body, 1
7... Joint end face, 18... Stop plate, 21... Liner, 22... Nut, 30... Fluid pressure cylinder.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a flange attachment/detachment device that engages between the flange of a shaft coupling of a torque transmission system on a rotating shaft such as a universal joint and the joint end face of a fitting, the inner diameter of the attachment/detachment device body A rod with a flange that can move back and forth in the axial direction is installed inside the rod, a support member that supports the shaft of the rod is fixed to the inner diameter opening side of the main body, and an elastic material is provided between the end surface of the flange of the rod and the support member. The shaft portion of the rod is inserted through the inner diameter of a stop plate fixed to the joint end face of the fitting, and a radial direction is inserted between the stop plate and the nut of the threaded portion of the rod end. 1. A rotating shaft flange attachment/detachment device, characterized in that a liner that can be moved back and forth is supported, and a rod can be moved back and forth in the axial direction against the elastic force of the elastic body. (2) Attachment and detachment of a rotating shaft flange according to claim (1) of the utility model registration, characterized in that a fluid pressure cylinder is provided that allows the rod to advance and retreat in the axial direction against the elastic force of the elastic body. Device.