JPS58153082A - Roller conveyor for kiln - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a roller conveyor for a kiln, and more specifically, when performing Mli repair on a roller conveyor in a kiln, it is possible to easily and quickly attach and detach each roller member constituting the conveyor. The present invention relates to a roller conveyor for windows and doors that can be used for windows and doors.

In a kiln such as a tunnel furnace in which the object to be fired is fired while being conveyed through the furnace, a roller member 10 made of a low heat tube is rotated between the opposing walls 12 and 12 of the furnace as a means for conveying the object to be fired. Roller conveyors are installed inside the kiln by freely arranging them through a large number of roller conveyors.

Incidentally, in kilns equipped with this type of roller conveyor, accidents inevitably occur during furnace operation in which the roller members become worn out or damaged and become unusable.
The roller member must be periodically removed and cleaned to remove adhering media and the like. In this case, it is desirable to replace the roller members quickly so as not to disrupt operations as much as possible, but in conventional roller conveyors for kilns, each roller member has a bearing that supports it and a power transmission mechanism. Since it is attached to the sprocket etc. in a complicated manner, it has not been possible to easily and quickly attach and detach it and replace it.

Yokodera→Kon 4=For this reason, the current situation is that the furnace operation must be stopped for a long time when the roller members are repaired and replaced, resulting in a large time loss.

The present invention has been devised in view of the current situation, and when it becomes necessary to repair or replace each roller member that constitutes a roller conveyor for a kiln, it is possible to simplify the work of attaching and detaching the roller member. The purpose is to minimize the time loss due to furnace operation shutdown by configuring the system so that it can be completed quickly.

In order to achieve this object, a roller conveyor for a kiln according to the present invention is a roller conveyor for a kiln in which a large number of roller members made of a heat-resistant material are rotatably arranged between the walls of a kiln. A rotating shaft connected to a drive source is pivotally supported outside the furnace wall via bearings concentrically with each of the roller members, and has a tapered tip, a slot in the longitudinal direction, and an outer periphery. The rear end of the connecting tube, which has an engaging protrusion formed on its surface, is fixed to either the rotating shaft or the roller member, and the distal end of the connecting tube is fixed to the hollow cylindrical portion formed at the other end. Insert it elastically in the direction,
The roller member is removably fixedly supported on the rotating shaft by fitting the engaging protrusion into a locking hole formed in the hollow cylindrical portion by elastic expansion of the tip portion.

Next, the roller conveyor for a kiln according to the present invention will be described in detail below with reference to the accompanying drawings, citing preferred embodiments. As previously explained in connection with FIG. 1, in a roller conveyor for a kiln, a hollow tubular roller member 10 made of a heat-resistant material such as ceramic is connected to an opposing furnace wall 12 of the kiln.
．． A large number of screws are rotatably arranged through the holes at predetermined intervals between the holes. That is, a roller conveyor consisting of a large number of roller members 10 is disposed in the furnace, and the object to be fired is carried on the roller conveyor and conveyed through the furnace by rotation of the roller members. The gist of the present invention is a structure in which the roller member can be easily attached and detached, so to explain this, first, a bracket 14 is attached to the outside of one furnace wall 12 by assembling angle members in a triangular shape and serving as a support. , the furnace wall 12
An elongated box 16 with a rectangular cross section is disposed parallel to the bracket 14, and is supported by the bracket 14, and bearings are installed in the elongated box 16 at intervals corresponding to the arrangement spacing of the roller members IO. 18 will be installed. A rotary shaft 20 is inserted through this bearing 18 and rotatably supported so as to be concentric with each of the roller members IO. As shown in FIG. 2, the rotating shaft 20 has an enlarged diameter at the end facing the roller member 10, and forms a hollow cylindrical part 22 in this enlarged part, and the other end is formed into a rectangular box. A chain wheel 24 is fixed by protruding outward from the shaft 16, and a roller chain 26 connected to an external drive source (not shown) is engaged with the chain wheel 24, thereby driving each rotating shaft 20 to rotate. As can be clearly seen from FIG. 1, the protruding distance of the rotary shafts 20 from the elongated box body 16 is alternately changed, and the two roller chains 26 are arranged so that the rotary shafts 20 are located at alternate positions.
The division of labor is stipulated to drive the following.

Next, in the present invention, the roller member 10 is detachably fixedly supported on the rotating shaft via a connecting pipe 28 as shown in FIG. That is, the connecting pipe 28 is made of a tubular body, which has a tapered tip 30 and a slot 32 extending a predetermined distance in the longitudinal direction from the open tip.
form.

By forming this slot 32, the tip of the connecting tube can be elastically contracted in the radial direction when the connecting tube 28 is inserted into the hollow cylindrical portion 22, such as the rotating shaft, as described later, so that both members can be smoothly connected. It is possible to perform a fixed fixation.

Furthermore, an engagement protrusion 34 that slightly protrudes in the radial direction is formed on the outer periphery of the connecting pipe 28 . As is clear from FIGS. 2 and 4, it is best to form two engaging protrusions 34 facing each other, but it is also possible to form one or three or more engaging protrusions. Note that the through hole indicated by reference numeral 36 in FIG. 3 is connected to the connecting pipe 28 as shown in FIGS. 2 and 3.
This is for inserting a pin when connecting and fixing to the rotating shaft 20 or the roller heating material 10 (described later).

In the case of the embodiment shown in FIG. 2, the connecting pipe 28 configured as described above is inserted and fixed into the hollow cylindrical portion 22 of the rotating shaft 20. That is, the rear end of the base of the connecting pipe 28 is connected to the rotating shaft 20.
By inserting the spring pin 40 into the hollow cylindrical part 22 bored in the enlarged diameter part of the pipe, and aligning the through hole 38 previously bored in the enlarged diameter part with the through hole 36 of the connecting pipe 28, the spring pin 40 is driven. , the connecting pipe 28 is fixed concentrically to the rotating shaft 20.

Next, a description will be given of means for connecting and fixing the roller member 10 to the connecting pipe 28 which is fixed concentrically to the rotating shaft 20 in this manner. As shown in FIG. 2, a cylindrical small diameter stepped portion having an outer diameter approximately equal to the inner diameter of the roller member 10,
A sleeve 42 consisting of a cylindrical large-diameter stepped portion having an outer diameter approximately equal to the outer diameter of 0 is prepared, and the small-diameter stepped portion of this sleeve 42 is protruded outward from the furnace wall 12 through its through hole 44. It is inserted into the open end of the roller member 10 and fixed with a spring pin 46.

Further, a locking hole 50 is provided in a protruding manner in the hollow cylindrical portion 48 formed at the large-diameter stepped portion of the sleeve 42 . This locking hole 50 is for the engagement protrusion 34 to fit into when the distal end of the connecting tube 28 is inserted into the hollow cylindrical portion (48).
It is necessary to drill a number corresponding to the number of engaging protrusions 34.

In the present invention configured as described above, the procedure for connecting and fixing the roller member 10 to the rotating shaft 20 will be described. A connecting pipe 28 is concentrically fixed to the tip of the rotating shaft 20, and its tapered end p , 1 (is the through hole 44 in the furnace wall 12
They are oriented in a corresponding manner to each. Therefore, the sleeve 4
2 is fixed to one end of the roller member IO, and is inserted in the axial direction from the opposite side of the furnace wall 12 toward the through hole 44.
The distal end of the connecting tube 28 is inserted into the open end of the sleeve 42, and the engagement protrusion 34 comes into contact with the end of the sleeve 42. Here, when the roller member 10 is further forcibly pressed in the axial direction, the connecting pipe 28 is moved to the above-mentioned shear 32.
The connecting tube 28 is elastically contracted in the radial direction to reduce the tube diameter in the presence of the connecting tube 28, thereby allowing the connecting tube 28 to enter the hollow cylindrical portion 48. Next, the engaging protrusion 34 formed on the connecting tube 28 falls into the locking hole 50 formed in the sleeve 42, and the tube diameter expands due to elastic expansion of the tip of the connecting tube 28, and the retaining protrusion 34 is engaged. 11 holes 50
By securely fitting the roller member 10 to the rotating shaft 20, the roller member 10 is fixedly supported. Conversely, when removing the roller member 10, if you forcibly pull the roller member 10 in the direction opposite to the 4 o'clock position, the tip of the connecting pipe 28 will be at the 3 o'clock position.
2 and the engaging protrusion 34 disengages from the locking hole 50, whereby the roller portion side 10 is easily removed from the rotating shaft 20.

Although FIG. 2 shows an example in which a sleeve 42 is used as the connection structure for the roller member 10, instead of using the sleeve 42, the connecting pipe 28 is directly connected to the hollow cylindrical portion of the roller member IO. Of course, it is also possible to insert and fix the tip of the holder. At this time, a locking hole is correspondingly formed in the hollow cylindrical portion of the roller member 1o to accommodate the engagement protrusion 34 therein.

In addition, as an object to which the connecting pipe 28 is fixed concentrically, a second
In the figure, the rotating shaft 20 is selected, but conversely, the connecting tube 28 is inserted and fixed into the hollow cylindrical portion of the sleeve 42 or the roller member 10, and the tip of the connecting tube 28 is inserted into the hollow cylindrical portion of the rotating shaft 20. It may also be inserted and fixedly supported.

At this time, similarly, a locking hole is correspondingly formed in the hollow cylindrical portion of the rotating shaft 20 in order to fit and accommodate the engaging protrusion 34 therein.

Since the purpose of the present invention is to easily and quickly attach and detach the roller member 10, it is sufficient to configure only the driving side end of the roller member 10 as shown in FIG. achieved. It is sufficient that the driven side end of the roller member 10 is supported by a suitable bearing, but as shown in FIGS. 1 and 4, the driven side end of the roller member 10 is also supported by a rotating shaft. It is more preferable to detachably fix it to. That is, as shown in FIG. 1, a long box 54 is mounted and supported on the outside of the other furnace wall 12 via a bracket 52, and through holes 56, 56 are formed in this long box 54 as shown in FIG. to be drilled. Said through hole 56.5
A tube 58 having a diameter substantially equal to the outer diameter of the roller member 10 is rotatably inserted into the tube 6, and a ring 60 is fitted around the outer circumference of the end of the tube 58, and a pin 6 protrudes radially from the ring.
2 is screwed on, and a stopper 64 is fixed to the outside of the long box body 54 so as to be positioned on the rotation locus of the pin 62. Bearings 66.66 are fixed at a predetermined distance inside the tube 58, and the same rotating shaft 68 as explained in FIG. 2 is rotatably supported on the bearings 66.66. This rotating shaft 68
The fixing structure between the roller member 10 and the roller member 10 is exactly the same as the structure shown in FIG. 2, so a description thereof will be omitted.

According to the present invention, in the event that a roller member is damaged during operation of a kiln, the roller member can be easily removed from the rotating shaft by grasping the driven end of the roller member and pulling it in the axial direction. The new roller member can be pulled out and then inserted into the furnace through the furnace wall through-hole, and simply by applying strong pressure forward, it is securely fixed and supported on the rotating shaft via the connecting pipe, so it can be quickly installed. Therefore, the roller member can be easily repaired and replaced. Therefore, the shutdown of the furnace operation can be kept to a minimum and time loss can be eliminated, and many other beneficial effects can be achieved.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway schematic perspective view showing the overall structure of a roller conveyor for a kiln according to the present invention, and FIG. 2 is a longitudinal cross-sectional view showing the connected and fixed state of the drive side end of the roller conveyor for a kiln according to the present invention. FIG. 3 is a perspective view of a connecting pipe used in the present invention, and FIG. 4 is a longitudinal cross-sectional view showing the connected and fixed state of the driven side end of the roller conveyor for a kiln according to the present invention. 10: Roller member 12: Furnace wall 14; Bracket 1
6: Long box body 18. Bearing 20: Rotating shaft 22: Hollow cylindrical portion 24: Chain wheel 26. Laura Chen
28: Connecting pipe 30: Taper 32: Slot 34:
Engaging protrusion 86; through hole 38; through hole 40 spring pin 42 sleeve 44: through hole 46, spring pin 48: hollow circle s section 50: (15) locking hole 52 nib bracket 54: long box body 56: through Hole 58: Tube 60: Ring 62: Pin 64: Stopper 66: Bearing 68: Rotating shaft applicant Takasago Kogyo Co., Ltd. agent Patent attorney Hiroshi Noguchi (16)

Claims (1)

[Claims] In a roller conveyor for a kiln, in which a large number of roller members made of heat-resistant material are rotatably disposed between the furnace walls of the furnace, a rotating shaft connected to a rotational drive source is mounted on a bearing outside the furnace wall. The rear end of a connecting pipe is pivoted concentrically with each of the roller members through the roller member, has a tapered taper at its tip, has a slot in the longitudinal direction, and has a retaining protrusion on its outer circumferential surface. The tip of the connecting pipe is elastically compressed in the radial direction and inserted into a hollow cylindrical part fixed to either the shaft or the roller member and formed at the other end, and bored into the hollow cylindrical part. A roller conveyor for a kiln, characterized in that the roller member is removably fixedly supported on the rotary shaft by fitting the engaging protrusion into the locking hole by elastic expansion of the tip end.