JPH0129602B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a winding and unwinding device for steel strip.

(Prior Art) A conventional carousel type reel drive mechanism disclosed in, for example, Japanese Patent Laid-Open No. 59-19026 will be described with reference to FIGS. 5 and 6. In the figure, the rotary housing 104 is rotated by a gear 105 by an electric motor 126 via a rotary reducer 106 .
The rotating housing 104 supports the winding drums 101 and 102 so that they can rotate independently, and the winding drum 101 is rotated by a gear 116 via a gear 115.
The intermediate shaft 117 is fitted to the inner gear 122, and the gear 122 is driven by the motor 125 via the drive shaft 124 and the gear 123. Similarly, the winding drum 102 is driven by a gear 113 from a motor 121 via a fixed speed reducer 127 and an intermediate hollow shaft 114 which is coaxial with the intermediate shaft 117 and serves as a hollow shaft. The rotary joint 132 serves as a supply port for lubricating oil, hydraulic oil, etc. to the rotating housing 104, and is supplied through the intermediate shaft 117.

(Problems to be solved by the invention) The conventional carousel type reel has an intermediate hollow shaft 11.
4 and the intermediate shaft 117 are coaxially inserted through the fixed speed reducer 127 and the rotating housing 104,
Because the differential mechanism is built in the rotary housing 104, (1) the rotary housing 104 or the fixed reducer 1
If one of the 27 is to be dismantled, the other will also be forced to be dismantled.

(2) Intermediate shafts 117 and 11 have a four-layer structure including the rotating housing 104 and lubricating oil and hydraulic oil pipes.
4 becomes long and has poor maintainability.

(3) Centering during installation is extremely difficult.

(4) The rotating housing 104 that houses the differential mechanism becomes large.

(5) The device as a whole becomes large.

(6) Since lubricating oil and hydraulic oil are supplied to the rotating housing 104 through the inner cylinders of the intermediate shafts 117 and 114, there are restrictions on the amount of supply.

(7) Since the shaft shapes of the intermediate hollow shaft 114 and the intermediate shaft 117 are different, the shafts, bearings, and gears used for these are not interchangeable and many spare parts are required.

In addition, in the conventional double-body type take-up and unwinder, the rotary housing 104 has support rollers 128 and 129.
(1) Rotating reducer 106 of rotating housing 104
There is no other way than to install it on the outer periphery of the rotating housing, which limits the arrangement of the device.

(2) A large rotating gear 130 must be installed on the outermost portion of the rotating housing 104.

(Means and effects for solving the problem) The present invention includes a rotary housing that has a plurality of winding drums and can rotate while winding and unwinding, and a cylindrical shape that is connected to the rotary housing and rotates at the same time. differential gear casing (hereinafter simply referred to as casing)
It also includes a fixed reduction gear that incorporates a casing, transmits the driving force for the winding drum from an external electric motor, and a revolution drive device that rotates the rotary housing.

That is, the double-barrel type winding and unwinding device of the present invention has a central portion of a circular rotating housing 2 in which a plurality of winding barrels 1a and 1b each having coaxially fitted gears 14a and 14b are disposed as shown in the figure. , is provided so as to be able to engage with and rotate together with the tip of a cylindrical differential gear casing 3, and a plurality of intermediate shafts 11 having gears arranged on both ends are built into the casing 3, and the intermediate shafts 11 are The distal end side protrudes from the casing 3 and penetrates into the rotary housing 2, and a gear 13 provided at the distal end of the intermediate shaft via a universal joint 12 engages with a gear 14 fitted in the housing. The gear 10 provided on the other end side is characterized in that a part of the gear 10 protrudes from a notch formed in the circumference of the casing 3 and is engaged with a ring gear 9 connected to a drive device 5.

To explain the operation of such a device using the example of FIGS. 1 and 2, the side end 2a of the rotating housing 2 is supported by a pair of rollers 27 installed on the foundation 15, and The other end 2b of the moving housing 2 is supported by a bearing 20 of a cylindrical casing 3. The casing 3 is the bearing 2 of the fixed reduction gear 4
2,23. Further, a meshing joint 21 is provided between the casing 3 and the end portion 2b of the rotating housing.
is provided side by side (or integrally) with the bearing 20, so that the rotary housing 2 and the casing 3 rotate simultaneously and the rotational torque is transmitted. A gear 19 is provided on the outer peripheral surface of the rotating housing 2, and a gear 18 connected to a rotating motor 16 installed on the foundation 15 is meshed with the gear 19, so that the rotating housing 2 and the casing 3 rotate (revolution). Driven. Tail end 3b of casing 3
is equipped with a rotary joint 26 for supplying hydraulic oil and lubricating oil to the rotating housing 2.

(Embodiment) The present invention incorporates a casing 3 in the center of a fixed speed reduction device 4 that is engaged with a rotating housing 2 and rotates as a unit, thereby forming a plurality of internal gears and small gears. The main feature is that a differential gear device is formed, and one embodiment thereof will be explained below with reference to FIGS. 1, 2, 3, and 4.

Inside the rotating casing 2, there are a plurality of winding drums 1a,
1b are arranged in parallel. The winding drums 1a, 1b are equipped with winding drum shaft gears 14a, 14b, and the winding drum shaft gears 14a, 14b are equipped with small gears 13a, 14b.
It is engaged with 13b. Small gears 13a, 13
b is the universal joint 12a, 12b and the intermediate shaft 11a,
11b to the internal gears 10a and 10b of the ring gear.
is connected to. The internal gears 10a and 10b are built into the casing 3, partially protrude from a notch formed on the circumference of the casing, and are meshed with the internal gears of the ring gears 9a and 9b. is intermediate gear 8
After meshing with a, 8b, the drive shaft gears 7a,
7b. The drive shaft gears 7a, 7b are provided with rotational power by motors 5a, 5b via flexible couplings 6a, 6b. That is, the power of the motor 5a passes through the flexible coupling 6a, the drive shaft gear 7a, the intermediate gear 8a, the ring gear 9a, the internal gear 10a, the intermediate shaft 11a, the universal joint 12a, the small gear 13a, the winding drum shaft gear 14a, and then the winding drum. 1a. Similarly, motor 5b
The power is transmitted to the winding drum 1b independently of each other through the flexible coupling 6b, the drive shaft gear 7b, the intermediate shaft gear 8b, the ring gear 9b, the internal gear 10b, the intermediate shaft 11b, the universal joint 12b, the small gear 13b, and the winding drum shaft gear 14b. transmitted to.

On the other hand, the rotary housing 2 is operated by a speed reducer 17 by a rotary motor 16 while either the winding drum 1a or the winding drum 1b is rotating for winding/unwinding the plate.
Then, the gear 19 on the outer periphery of the rotating housing is rotated by the engagement of the small rotating gear 18. In this case, the rotating housing 2 and the casing 3
are rotated synchronously by the action of the meshing joint 21. Therefore, internal gears 10a, 10b and intermediate shafts 11a, 11b, universal joints 12a, 12b, built in the rotation housing 2 and the casing 3,
Small gears 13a, 13b, winding shaft gears 14a, 14
b rotates as the casing 3 rotates. The internal gears 10a, 10b function as planets with ring gears 9a, 9b installed on the outer periphery of the casing 3, and function as a differential gear device.

By the way, spherical bearings 20 are installed at the connecting parts 3a and 3b between the rotating housing 2 and the casing 3 in order to ensure smooth rotation even if the rotating core of the rotating housing 2 and the rotating core of the casing 3 are misaligned. The intermediate shafts 11a and 11b, which are the transmission shafts of the motors 5a and 5b, are also provided with the universal joint 1 and are arranged in parallel with the meshing joint 21, which functions to transmit rotation, to provide flexibility.
This problem is solved by providing flexibility with 2a and 12b.

In FIG. 3, a gear 19' for rotation is provided at the tail end 3b of the casing 3, and the revolution drive motor 1
6', the differential gear casing 3 and the rotation housing 2 via the speed reducer 17' and the revolution pinion 18'.
An example of rotating the is shown below.

FIG. 4 shows another embodiment of the invention. In FIGS. 1 and 3, ring-shaped gears 9a, 9b
are bearings 24a, 24b, which circumscribe the casing 3,
25a, 25b, but in FIG. 4, ring gears 9a', 9
b' denotes bearings 24a' and 24 inscribed in the fixed reducer 4'.
This is an example of a structure held at b', 25a', and 25b'.

In addition, in FIGS. 1 and 3, a meshing joint 21 and a bearing 20 are installed in parallel at the connecting parts 3a and 2b between the rotating housing 2 and the casing 3, so that the load of the rotating housing 2 is transferred to the casing 3. act. In order to prevent this, Fig. 4 shows that the bearing 20' of the rotary housing 2' is placed in the fixed speed reducer 4'.
This is an example in which the arrangement is such that only the rotation can be transmitted to the casing 3' through the meshing joint 21'. In either case, the protrusion (2b in FIG. 1, 4a in FIG. 4) that circumscribes the bearing has a two-part structure and can be removed independently.

(Effect of the invention) According to the present invention, the following effects can be obtained.

(a) Intermediate shaft 11a, 1 which is the rotation transmission shaft of winding drum 1
1b has a flexible joint part, a rotating housing, and a casing built into the fixed reducer.The rotating housing and fixed reducer can be separated at the engaging universal joint part, so each can be disassembled and assembled separately, improving maintainability. Excellent in Furthermore, the casing can be replaced in one unit.

(b) Although the intermediate shaft is long, it can be held firmly and at short intervals, resulting in less vibration and excellent maintainability.

(c) Since the rotation housing and the fixed reducer 4 and differential reducer are all connected with flexible joints, alignment during installation and alignment due to aging due to ground pillow etc. Excellent flexibility against deviations.

(d) Since the differential mechanism is built into the fixed speed reducer, the rotating housing becomes extremely compact, which improves controllability in rotating operations (because the inertia force is reduced).
is excellent. Furthermore, since a relatively large reduction ratio can be obtained within the fixed reduction gear and the rotary housing, the fixed reduction gear itself can be made relatively compact. For this reason, the device as a whole becomes small.

(E) Since gears, bearings, shafts, etc. can be made to have the same shape and specifications for each winding drum, compatibility is excellent and it is possible to reduce the number of spare parts.

(f) Lubricating oil and hydraulic oil can be supplied to the rotating housing directly to the differential gear casing in the fixed reduction gear, so there are fewer restrictions on the supply amount.

(G) Since the rotation device of the rotation housing can be installed either on the outer periphery of the rotation housing or at the end of the differential gear casing, it is possible to downsize the device, and Great flexibility in device placement.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of the present invention. FIG. 2 is a conceptual side view of the present invention. FIG. 3A is a sectional view showing another embodiment of the present invention. FIG. 3B is a diagram showing another embodiment of the rotary housing driving device. FIG. 4 is a sectional view of another embodiment of the present invention. FIG. 5 is a sectional view of a conventional device. FIG. 6 is a conceptual side view of the conventional device. 1a, 1b... Winding drum, 2... Rotating housing,
3...Casing, 4...Fixed reducer, 5...Motor, 9a, 9b...Ring gear, 11a, 11
b...Intermediate shaft, 12a, 12b...Universal joint,
7, 8, 10, 13, 14...gears.

Claims (1)

[Claims] 1. The central part of a circular rotating housing in which a plurality of winding drums each having coaxial gears fitted therein engages with the tip of a cylindrical casing so as to be rotatable, A plurality of intermediate shafts having gears arranged on both ends are built in, the distal ends of the intermediate shafts protrude from the casing and pass through the rotary housing, and the gears provided at the distal ends of the intermediate shafts via universal joints are installed in the housing. In addition, a gear provided on the other end of the intermediate shaft is partially protruded from a notch formed in the circumference of the casing, and is engaged with a ring gear connected to a drive device. A double barrel type take-up and unwind device.