JP4401202B2 - Screw conveyor connection method and screw conveyor - Google Patents

Description

  The present invention relates to a screw conveyor connection method and a screw conveyor which can connect and remove a screw conveyor unit in which a ribbon screw is installed, and which can expand and contract a lifting height and a conveyance path of the screw conveyor.

A conventional screw conveyor device is disclosed in Patent Document 1 in which a ribbon screw is connected to extend a lifting head downward, and a lifting device that is removed to shorten a lifting head. In this screw conveyor device, fitting portions are provided in the connecting portions of the ribbon screw so as to correspond to the connecting portions of the cylindrical casing, and are connected by bolts.
JP 2002-321812 (FIGS. 8 to 21)

  However, the work of connecting the screw conveyor is to align the ends of the ribbon screws at their connecting ends and fit them together, or to join them with bolts. This work is extremely difficult and takes a long time.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a screw conveyor connection method and a screw conveyor that can solve the above-mentioned problems and can easily perform connection work and disconnection work in a short time.

The invention according to claim 1 is a screw conveyor in which a ribbon conveyor unit in which a ribbon screw is rotatably mounted in a cylindrical casing is connected to each other , and the ribbon screw is arranged on the same rotational axis in the cylindrical casing. Are connected in the vicinity of the connecting end of the cylindrical casing of the screw conveyor unit, and a screw rotating device for rotating the ribbon screw is provided, and a gap between end faces is formed at the connecting end of the ribbon screw. The connecting ends of the cylindrical casing are connected to each other, the drive shafts of the screw rotating devices are connected to each other, and the connecting end of the ribbon screw is visually observed from the adjustment window provided at the connecting end of the cylindrical casing. The rotational position of the ribbon screw is adjusted by the rotational position adjuster interposed on the drive shaft, and the end of the ribbon screw is adjusted. During thereby adjusting the gap.

According to a second aspect of the present invention, in the configuration of the first aspect, the gap between the end faces is 5 mm or more and 20 mm or less .

The invention according to claim 3 is configured by connecting a screw conveyor unit in which a ribbon screw is rotatably mounted in a cylindrical casing, and the ribbon screw is disposed on the same rotational axis in the cylindrical casing. A screw conveyor, wherein each screw conveyor unit is provided in the vicinity of a connecting end on both sides of a cylindrical casing and transmits a rotational driving force to a ribbon screw, and the screw rotating device of each screw conveyor unit. Interlocking means for connecting and synchronizing each other via a drive shaft, a gap between the end faces that makes the connection end of the ribbon screw formed corresponding to the connection end in the cylindrical casing unconnected, and the connection of the cylindrical casing An adjustment window that is provided at each end and allows visual observation of the gap between the end faces, and a ribbon screw interposed between the drive shafts. Translocation adjusted to a is obtained by and a adjustable positioning device the gap between the end face.

According to a fourth aspect of the present invention, in the configuration of the third aspect, the screw rotating device includes a rotating ring, a ring gear provided in the rotating ring, and a drive pinion meshed with the ring gear. A rotary drive device that rotationally drives the drive pinion via the drive shaft is provided .

The invention according to claim 5 is the configuration according to claim 3 or 4, wherein the gap between the end faces is 5 mm or more and 20 mm or less .

According to the first aspect of the invention, the tubular casing connecting the connecting end of the ribbon screw in a disconnected state, the driven synchronously by connecting a drive shaft of the screw rotation device, easily and in a short time the conveyor unit Connection work can be carried out, and work efficiency can be greatly improved. Since the rotational driving force of the screw rotating device in the vicinity of the connection end of the ribbon screw is being transmitted, it without the shifted or connection terminal of the phase of the ribbon screw, and the amount of deformation be able to very small The gap between the end faces of the ribbon screw can be reduced , and the object to be conveyed can be stably conveyed. Furthermore, after connecting the cylindrical casing, the gap between the end faces of the connecting end of the position adjusting tool ribbon screw can be adjusted by visually operating the position adjusting tool of the drive shaft from the adjusting window, and the conveyor unit can be connected. Furthermore, it can be performed easily and can be smoothly transported at the connecting portion.

According to invention of Claim 2, the continuity of a ribbon screw is impaired and conveyance efficiency does not fall or cause a failure.

According to the invention of claim 3, the connecting end of the ribbon screw is in a non-connected state, the connecting ends of the cylindrical casing are connected and connected to each other, and the screw rotating device is simply connected and interlocked by the interlocking means. Since the conveyor units can be connected, the connection work can be performed easily and in a short time, and the work efficiency can be greatly improved. In addition, since the rotational driving force is transmitted from the screw rotating device in the vicinity of the connection end of the ribbon screw, the phase of the connection end of the ribbon screw is not shifted or deformed, and there is no gap between the end faces of the ribbon screw. It can be made small, and the object to be conveyed can be conveyed stably. Furthermore, it is possible to easily perform alignment between the end face gaps with the position adjusting tool while visually observing the connection end of the screw conveyor from the adjustment window.

  According to the fourth aspect of the present invention, since the ribbon screw is rotationally driven by the drive pinion via the ring gear and the rotating ring, and both screw rotating devices are synchronously driven by the connected driving shaft, the screw rotating device is easily and accurately driven. The ribbon screw can be driven in synchronism with each other, whereby contact and displacement of the connection end of the unconnected ribbon screw can be prevented, and the object to be conveyed can be smoothly conveyed.

According to the fifth aspect of the present invention, the continuity of the ribbon screw is not impaired, and the conveyance efficiency does not decrease or cause a failure.

[Embodiment 1]
DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment of a earthing device capable of adjusting a head according to the present invention will be described with reference to FIGS.

    As shown in FIGS. 5 and 6, this earthing device is a screw conveyor incorporating a ribbon screw, for example, excavating earth and sand from the tunnel T excavated underground, and conveying it from the loading hopper H. It is for loading on the vehicle M and is configured such that the lift can be adjusted. FIG. 5 shows a low lift state, and FIG. 6 shows a high lift state.

  This earthing device is composed of a conveyor body 1 which is suspended by connecting a plurality of conveyor units (screw conveyor units) 2, 3, 4A, 4B (4C, 4D) for earthing in series, The feeding conveyor unit 5 having a feeding hopper 54 provided at the lower end portion and the discharging conveyor unit 6 having a discharging hood 64 provided at the upper end portion of the conveyor body 1 are configured.

  The conveyor unit constituting the conveyor body 1 includes a lower end unit 2 and an upper end unit 3, and intermediate units 4A and 4B (4C and 4D) connecting the lower end unit 2 and the upper end unit 3.

  The input conveyor unit 5, the discharge conveyor unit 6, the lower end unit 2, the upper end unit 3, and the intermediate units 4A, 4B (4C, 4D) are respectively cylindrical casings 51, 61, 21, 31, 41A having a circular cross section. 41D, ribbon screws 52, 62, 22, 32, 42A to 42D, which are rotatably arranged in the cylindrical casings 51, 61, 21, 31, 41A to 41D, respectively, and ribbon screws 52, 62, 22, 32 , 42A to 42D are respectively constituted by screw rotating devices 53, 63, 23U, 23D, 33U, 33D, 43U, and 43D.

  The feeding conveyor unit 5 has a cylindrical casing 21 connected to a side opening near the lower end of the lower end unit 6 in a state where the tip end side is slightly inclined downward, and a ribbon screw 52 is rotated in the cylindrical casing 51. It is arranged so that it can rotate around the heart. A charging hopper 54 is attached to the charging opening on the top surface of the cylindrical casing 51. Further, a screw rotating device 53 is provided at an intermediate portion of the cylindrical casing 51. Although not described in detail, the screw rotating device 53 is the same as the screw rotating device described later, and includes a rotating ring, a ring gear, a driving pinion, and a rotating driving device 53a.

  In the discharge conveyor unit 6, the horizontal casing 61 has a bottom opening on the base end side connected to an opening on the upper end of the upper end unit 3, and a ribbon screw 62 is rotatable around the rotation axis. Is arranged. A discharge hood 64 is provided at a discharge port formed on the lower surface of the distal end portion of the cylindrical casing 61. Further, a screw driving device 63 having a rotation driving device 63 a is provided at the base end portion of the cylindrical casing 61.

  In the lower end unit 2, a ribbon screw 22 is disposed around a rotation axis O in a cylindrical casing 21 whose lower end is closed by a face plate 21 a. Screw rotating devices 23U and 23D are provided in the upper part of the input conveyor unit 21 and in the vicinity of the connection end at the upper end, respectively.

  In the upper end unit 3, a ribbon screw 32 is rotatably arranged around the rotation axis O in a cylindrical casing 31 whose upper end is connected to the cylindrical casing 61 of the discharge conveyor unit 6. Screw rotating devices 33U and 33D are provided at the upper end and the lower end.

  The intermediate units 4A and 4B (4C and 4D) are respectively arranged in the cylindrical casings 41A and 41B (41C and 41D) so that the ribbon screws 42A and 42B (42C and 42D) can rotate around the rotation axis O, respectively. Screw rotating devices 43U and 43D are provided at the upper end and the lower end of the cylindrical casing 42, respectively.

  The connection mechanisms 7A to 7C (7D, 7E) of the screw conveyor according to the present invention include a connection mechanism 7A and intermediate units 4A, 4B (4C, 4D) at the connection between the lower end unit 2 and the lowermost intermediate unit 4A. The connecting mechanism 7B (7D, 7E) of the connecting part between, the intermediate part unit 4B (4D) of the uppermost part and the connecting mechanism 7C of the connecting part of the upper end unit 3, each connecting mechanism 7A-7E, respectively Since they have the same structure, only the connection mechanism 7A will be described and the other description will be omitted.

That is, as shown in FIGS. 1 to 3, the connection mechanism 7A that connects the lower end unit 2 and the lowermost intermediate unit 4A is provided at the upper end of the cylindrical casing 21 and the lower end of the cylindrical casing 41A. Connection frame 71U, 71D, and window frame portion 72U forming an adjustment window 72 for adjusting the gap δ between the end surfaces of the ribbon screws 22, 42A cut along the plane including the rotation axis O by visual observation. 72D is formed, and the connecting flanges 71U, 71D and the window frame portions 72U, 72D are connected via a connecting bolt, and the cylindrical casings 21, 41A are connected. The window frame portions 72U and 72D are provided with a closing lid 72C that can be attached and detached by mounting bolts. The adjustment window 72 is used by removing the closing lid 72C during adjustment after maintenance of the connection mechanism 7A or during maintenance. Is done.

  Screw rotating devices 23U and 43D, which are provided near the connection ends of the cylindrical casings 21 and 41A and rotate and drive both ribbon screws 22 and 42A, respectively, are a pair of upper and lower parts mounted on the notches of the cylindrical casings 21 and 41A. Between the support ring bodies 73D and 73D, between 73U and 73U, rotary rings 75D and 75U are supported rotatably around the rotation axis O via bearings 74D and 74U, respectively, and ribbons are provided on the inner surfaces of the rotary rings 75D and 75U. A part of the screws 22 and 42A is fixed. Ring gears 76D and 76U are attached to the outer peripheral portions of the rotating rings 75D and 75U, respectively, and the drive is rotatably supported by the gear boxes 78D and 78U via drive shafts 77D and 77U parallel to the rotation axis O. Pinions 79D and 79U are engaged with the ring gears 76D and 76U, respectively.

  The drive shafts 77D and 77U are connected to each other via a gear coupling (position adjusting tool) 81 that can be coupled by adjusting the shaft rotation position. A rotation drive device 82 is connected to the drive shaft 77D of the screw rotation device 43D. The ends of the ribbon screws 22 and 42A have a shape cut by a plane including the rotation axis O, but the present invention is not limited to this as long as the end face clearance δ can be adjusted by rotation.

In the above configuration, when connecting the connection mechanism 7A, first, the lower end unit 2 is arranged below the lowermost intermediate unit 4A and aligned so that the ends of the ribbon screws 42A and 22 do not wrap, The connecting flange 71D and the window frame portion 72D of the cylindrical casing 41A and the connecting flange 71U and the window frame portion 72U of the cylindrical casing 21 are connected and fixed by a connecting bolt. Then, while visually observing the connection ends of the ribbon screws 42A, 22 from the adjustment window 72, the rotational positions of the drive shafts 77D, 77U of the screw rotating devices 23, 43D are adjusted to make the gap δ between the end faces of the ribbon screws 42A, 22 appropriate. The range is set, and the drive shafts 77D and 77U are connected via the gear coupling 81. Next, a closing lid 72 </ b> C is attached to the adjustment window 72 to close the adjustment window 72.

  When separating the connection mechanism 7A, the closure lid 72C may be removed and the connection flanges 71A and 71B and the connection bolts of the window frame portions 72A and 72B may be removed to separate the cylindrical casings 21 and 41A.

By the way, the portion of the ribbon screw 42A, 22 that is deformed by receiving a load is on the tip side from the connecting portion of the rotary rings 75D, 75U, and the distance L is set to be short. small. In addition, since the amount of deformation changes depending on the weight of the object to be conveyed, the conveyance form, the conveyance speed, the shape, thickness, material, etc. of the ribbon screws 42A and 22, the range of the gap δ between the end faces cannot be set unconditionally. In the case where the object to be conveyed is earth and sand, if the gap is too wide (for example , more than 20 mm), the ribbon screws 42A and 22 are interrupted, which may reduce the conveyance efficiency. Further, when the end portions of the ribbon screws 42A and 22 are in contact with each other, one of the ribbon screws 42A and 22 is deformed by applying a load to the other, causing the continuity of the ribbon screws 42A and 22 to be impaired, and the conveyance efficiency is reduced. May cause failure. Accordingly, in the case of a transported object such as ordinary earth and sand, the gap δ between the end faces is preferably in the range of, for example, about 5 mm to 20 mm, and more preferably in the range of about 5 mm to 10 mm.

According to the connection mechanism 7A, the ribbon screws 42A and 22 are not connected to each other, the cylindrical casings 21 and 41A are connected to the drive shafts 77D and 77U, and the ribbon screw 42A is connected by the gear coupling 81 while visually observing from the adjustment window 72. The intermediate unit 4A and the lower end unit 2 can be connected simply by adjusting the rotational position of the end portions 22 and 22 to adjust the gap δ between the end surfaces . Accordingly, the connecting work of the ribbon screw is not required as in the prior art, and the connecting work can be efficiently performed in a short time.

  In the earthing device, all the screw rotating devices 23U, 23D, 33U, 33D, 43U, and 43D are connected and interlocked with each other by the interlocking shaft 83 and synchronously driven for each of the conveyor units 4A and 4B (4C and 4DE). Yes. Each of the connection mechanisms 7A to 7C (7D, 7E) is provided with one rotation driving device 82, which is characterized by the nature and weight of the object to be transported, the transport direction such as horizontal, vertical and diagonal, and continuous May be provided for each screw rotating device according to a conveyance type such as intermittent, or may be driven by one rotation driving device.

Therefore, the lift of the earthing device can be easily expanded and contracted in a short time by connecting and disconnecting the intermediate units 4A and 4B (4C and 4D) using the connection mechanisms 7A to 7C (7D and 7E). It becomes possible.
[Second Embodiment]
FIG. 7 shows an earthing device equipped with a conveyor body 1 having the same configuration, in which an earth and sand storage tank 91 is provided in the input conveyor portion. The same members as those in the first embodiment are denoted by the same reference numerals. The description is omitted.

  A collecting conveyor 92 having a plurality of ribbon screws 92 a arranged in parallel is disposed at the bottom of the storage tank 91, and a loading conveyor unit 93 having a ribbon screw 93 a is provided at the collecting end of the collecting conveyor 92. According to the above embodiment, the same operational effects as those of the first embodiment can be obtained.

It is side surface sectional drawing which shows 1st Embodiment of the earthing apparatus provided with the connection mechanism which concerns on this invention, and shows the connection mechanism. It is a side view of the connection mechanism. It is AA sectional drawing shown in FIG. It is BB sectional drawing shown in FIG. It is a whole side view of the earthing device. It is the whole side view which extended the head of the earthing device. It is a side view which shows 2nd Embodiment of the earthing machine provided with the connection mechanism which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Conveyor body 2 Lower end unit 3 Upper end unit 4A, 4D Intermediate unit 5 Input conveyor unit 6 Discharge conveyor unit 7A-7E Connection mechanism 21 Cylindrical casing 22 Ribbon screw 23U, 23D Screw rotating device 31 Cylindrical casing 32 Ribbon screw 33U, 33D Screw rotating device 41A-41E Cylindrical casing 42A-42E Ribbon screw 43U, 43D Screw rotating device 71U, 71D Connection flange 72 Adjustment window 72A, 72B Window frame 72C Closing lid 73U, 73D Support ring bodies 75U, 75D Rotating ring 76U, 76D Ring gear 77U, 77D Drive shaft 78U, 78D Gear box 79U, 79D Drive pinion 81 Gear coupling 82 Rotation drive device

Claims (5)

When connecting a screw conveyor unit in which a ribbon screw is rotatably mounted in a cylindrical casing, and connecting a screw conveyor in which a ribbon screw is arranged on the same rotational axis in the cylindrical casing ,
In the vicinity of the connection end of the cylindrical casing of the screw conveyor unit, a screw rotating device that transmits rotational driving force to the ribbon screw via a rotating ring rotatably supported by the cylindrical casing is provided, respectively.
In a non-connected state in which a gap between end faces is formed at the connection end of the ribbon screw, the connection ends of the cylindrical casing are connected to each other and connected,
Connecting the drive shafts of the screw rotating device to each other;
The end face of the ribbon screw is adjusted by adjusting the rotational position of the ribbon screw by visually checking the connection end of the ribbon screw from the adjustment window provided at the connection end of the cylindrical casing, and by the rotational position adjuster interposed on the drive shaft. A screw conveyor connection method characterized by adjusting a clearance between the screw conveyors. The screw conveyor connection method according to claim 1 , wherein the gap between the end faces is 5 mm or more and 20 mm or less . A screw conveyor in which ribbon screws are rotatably mounted in a cylindrical casing and connected to each other , and a ribbon screw is arranged on the same rotational axis in the cylindrical casing ,
Each screw conveyor unit is
A screw rotating device that is provided in the vicinity of the connection ends on both sides of the cylindrical casing, and that transmits a rotational driving force to the ribbon screw via a rotating ring rotatably supported by the cylindrical casing;
Interlocking means for connecting and synchronizing the screw rotation devices of each screw conveyor unit with each other via a drive shaft;
A gap between the end faces that makes the connection end of the ribbon screw formed corresponding to the connection end of the cylindrical casing unconnected,
An adjustment window provided at each connection end of the cylindrical casing, the gap between the end faces being visible,
A screw conveyor , comprising: a position adjuster that is interposed in the drive shaft and adjusts the rotational position of the ribbon screw to adjust the gap between the end faces . The screw rotating device includes a rotating ring, a ring gear provided in the rotating ring, and a drive pinion meshed with the ring gear.
Screw conveyor according to claim 3, characterized in that a rotary driving device for rotationally driving the drive pinion through a drive shaft of the interlocking means. The screw conveyor according to claim 3 or 4 , wherein the gap between the end faces is 5 mm or more and 20 mm or less .

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