JPS583656Y2 - Belt connection jig - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a belt connecting jig that can efficiently repair the belt connection when the belt is cut in a belt conveyor device.

Conventionally, when the belt of a belt conveyor device breaks, the following jig is used to repair the connection.

(a) As shown in Fig. 1, a dowel B is placed on roller A of a belt conveyor device so that work can be performed on the dowel B, and then belts C1 and C are cut onto the dowel B.
2 and align the cut surfaces of belts C0 and C2.

(b) Next, a second belt is used to connect these belts C1 and C2.
The connection is made by a belt connecting metal fitting as shown in the figure, and this belt connecting metal fitting is connected to a pair of belt connecting plates D shown in Fig. 2a.
1. D2, a belt connecting bolt E whose head has a flat outer circumferential surface and a stopper groove on the upper surface of the head as shown in Fig. 2, and a belt connecting bolt H as shown in Fig. 2C. A pair of belt connecting plates D1. One of the belt connecting plates D1 of D2 has bolt holes 49 drilled at both ends thereof, through which the belt connecting bolts E pass, and bolt holes 49 are bored at both ends of the other belt connecting plate D2 at positions corresponding to the bolt holes 49. A bolt hole 472' opening into which the flat head of the belt connecting bolt E is inserted is bored, and the inner peripheral surface of this bolt hole 471' corresponds to the flat head part of the belt connecting bolt E. A protrusion F that can be inserted into the stop groove on the top surface of the head of the belt connection bolt E is formed around the flat plate hole, and the belt connection plate 1. Around each of D2, claws that engage the belts C1 and C2 are formed to protrude at right angles to the main body of the belt connecting plate.

(c) Belt C1°C2 by such belt connection fittings
To connect, first, bolt hole 4 of belt connection plate D1
Mark the joints of the belts C, C2 with chalk, marker ink, etc., as shown in FIG. 4, in accordance with the spacing between the centers of the two openings.

For example, the belt width of belts C1 and C2 shown in FIG.
If the marking interval t2 is set to about 200 in the case of a piece cut in the lateral direction at a length of 200 m, markings will be made at 7 locations.

Incidentally, when the belts C1 and C2 are cut in the longitudinal direction, the length of the connecting portion often reaches 100 to 200 m, so the number of cylinders to be marked inevitably increases.

(d) After marking, the cut pieces of the belts C1 and C2, which have a cylindrical shape with a circular cutting edge formed at the tip as shown in Figure 3a, are bitten into the cutting edge on the outer peripheral surface of the cylindrical A horizontal hole G is provided for removing the
Align the center of the tip of the punch (2) with the handle H attached to the top of the punch (2) with the center of the marking, and then hit the head of the punch (2) with a hammer to drill a bolt hole through which the belt connection bolt E will pass through CI and C2.

(e) After drilling bolt holes at all the markings in I/C1s and C2, first attach the belt connection plate D.
Open the protrusion F of No. 2 upward and pass the belt connection bolt E through the bolt hole 472' from the opposite side of the pawl, and insert the flat head of the belt connection bolt E into the bolt hole 472 of the bolt connection plate D2. , then bend the protrusion F and insert it into the stopper groove on the top surface of the head of the belt connection bolt E to integrate the belt connection bolt E and the belt connection plate D2. -E to belt C as shown in Figure 5.
1. Insert from the bottom surface of C2 into the opposing bolt holes of belts C1 and C2.

Next, pass the bolt hole 49 of the belt connecting plate D1 through this belt connecting port L-E with the claw facing downward, and then sandwich the belts C1 and C2 between the belt connecting plates D1 and D2. After hitting the top surface to make the claws bite into the belts C1 and C2, screw the belt connecting pin l-K to the belt connecting pole l-E and connect the belt with the tightening tool J shown in Fig. 3C. Tighten the belt connecting nut K by engaging it with the stop groove 1 on the belt connecting nut.

Below, according to the work procedure described above, punch ■, tightening tool J
, connect belts C and C2 with belt connecting fittings using a hammer.

(Support) - The conventional belt connection repair work involved has the following drawbacks.

That is, if the belt is cut in the lateral direction of the belt as shown in FIG. 4, the belt connecting plate 1. D
Since the number of , is relatively small, it is relatively easy to tighten the belt connecting nut K using a T-shaped tightening tool J, but the belt is cut in the longitudinal direction of the belt. In many cases, the length is usually cut over 50 m or more, and in that case, the number of belt connection plates D11D2 for belt connection is several hundred, and the work is to tighten each belt connection nut K using a tightening tool J. In the past, this was a time-consuming and undesirable task, as well as a very labor-intensive task.

Therefore, the downtime of the conveyor belt is several hours.
It had the disadvantage of extremely low work efficiency.

In order to eliminate the drawbacks of the conventional belt connecting method, the inventors of the present invention have proposed that if the belt connecting neck l- is tightened using an impact wrench, the working time can be shortened and the labor burden can be reduced. Focusing on
We succeeded in developing a belt connection jig that can be detachably attached to an impact wrench, and completed the present invention.

That is, in the present invention, a square hole that engages with a prismatic protrusion of an impact wrench is formed at one end, a female thread is formed at the other end, and a flat surface for holding a spanner is formed on the outer peripheral surface of the hole. The formed basic attachment has one end formed with a male thread that engages with the female thread of the basic attachment, and the other end that engages with a stop groove provided on the upper surface of the belt connection nut. A tip attachment having a bolt insertion hole into which the tip of a belt connection bolt screwed with a pawl and a belt connection nut is inserted, and a flat surface for holding a spanner is formed on the outer peripheral surface of the hole. The present invention provides a belt connecting jig characterized by the following characteristics.

Hereinafter, the belt connection jig according to the present invention will be explained in detail using the drawings.

FIG. 6 is an exploded view of one embodiment of the belt connection jig according to the present invention, FIG. 7 is an overall perspective view of one embodiment of the belt connection jig according to the present invention, and FIG. 8 is an exploded view of one embodiment of the belt connection jig according to the present invention. FIG. 2 is a perspective view of the belt connection jig in use.

In the drawing, 1 has a prismatic protrusion 3 of an impact wrench 3 at one end.
2. A basic attachment having a protruding square hole 1a that engages with a screw, a female thread 1b formed at the other end, and a flat surface 1c for holding a wrench formed on its outer peripheral surface. has a base attachment 1 on one end.
A male thread 2a is formed on the other end to engage with the female thread 1b of the belt I, and a claw 2b that engages with the retaining groove 1 provided on the upper surface of the belt I connection nut is formed at the other end. This is a tip attachment in which a bolt insertion hole 2c is formed into which the tip of a belt connecting bolt E screwed together is inserted, and a flat surface 2d for holding a spanner is formed on the outer peripheral surface of the bolt insertion hole 2c.

Reference numeral 3 denotes an impact wrench, and a prismatic protrusion 3a that is inserted into the square hole 1a of the basic attachment 1 is formed at the tip.

The belt connecting jig according to the present invention consists of the tank bottom as described above, and its usage will be explained below.

First, as shown in FIG. 1, the dowel B is laid on the roller A of the belt conveyor device so that work can be performed on the dowel B, and then the cut bells 1-C1, C2 are placed on the dowel B. , and align the cut surfaces of belts C1 and C2.

Bolt hole A of belt connection plate D1. Mark the joints of the belts C1+C2 with chalk, marker ink, etc. in accordance with the spacing between the centers of the mouths, and further mark at intervals of t2 in the cutting direction as shown in FIG.

Next, align the center of the tip of punch I with the center of the marking, and hit the head of punch ■ with a hammer to strike bell 1-C1,C.
2. Drill a bolt hole through which bolt E will pass.

In this case, if a punch ■' is used, as shown in Fig. 3b, the distance t1 between the centers of the two punches is the same as the distance between the centers of the bolt holes 49 of the belt connecting plate D1. The intervals between the bolt holes drilled in the belts t-C, , C2 can be made constant, and two bolt holes can be drilled at a time, improving work efficiency.

After drilling bolt holes at all the marked locations, open the protrusion F of the belt connection plate D2 upwards, pass the belt connection pole l-E through the bolt hole 472' from the opposite side of the tab, and then insert the protrusion F. Bend it and insert it into the stop groove on the top surface of the head of the heald connection bolt E, and insert this belt connection bolt E into the opposing bolt holes of the belts C1 and C2 from the bottom surface of the belts C1 and C2 as shown in FIG. .

Next, the bolt holes 41 of the belt connecting plate D1 of the belt connecting port L-E protruding from the upper surface of the belts C1 and C2 are turned downward, and the belts C1 and C2 are connected with the belt connecting plates D1 and D2. After pinching, tap the upper surface of the belt connecting plate so that the tabs are caught in the belts C7 and C2, and then screw the belt connecting hole (K) around the belt connecting hole ()E around 2 to 3 times.

On the other hand, the tip attachment 2 having the pawl 2b that engages with the retaining groove 1 of the belt connecting nut K is screwed onto the basic attachment 1 in advance, and the spanner holding flat surface 1C of the basic attachment 1 and the spanner holding surface 1C of the tip attachment 2 are screwed onto the basic attachment 1. Insert a wrench into each of the flat surfaces 2d and tighten them firmly, and then insert the prismatic protrusion 3a of the impact wrench 3 into the square hole 1a of the basic attachment 1 to connect the belt according to the present invention as shown in FIG. Fix the jig to the tip of the impact wrench 3, and use the impact wrench 3 to rotate the belt connecting nut t-K to sequentially tighten the belt connecting poles L-E and the belt connecting nut. Fix it to

4 and 5 are examples in which the belt is cut in the horizontal direction of the belt, but even if the belt is cut in the vertical direction, the same operation can be carried out easily and in a short time. The belt connection repair work can be completed.

As described in detail above, the belt connecting jig according to the present invention has a belt connecting plate D as shown in FIG.
Belt connection port L-E for connecting and fixing 1 and D2
The Nara L-K for belt connection is tightened using an impact wrench 3, and since it is composed of two parts, the tip attachment 2 and the basic attachment 1, only the tip attachment 2 is used. Even if the size of the belt connecting nut is changed by changing the
It has the advantage that it can be used continuously even if the claws 2b of the machine are worn out.

In addition, tip attachment 2 and basic attachment 1
Since a spanner holding plane is formed on each of the spanners to be held by the spanner, the two can be firmly connected, and the tip attachment 2 will not come off from the base attachment 1 during use.

Furthermore, even if the belt is cut in the longitudinal direction, the belt connection can be repaired easily and in a short time, which has great practical value.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the connection repair preparation state when the belt of the belt conveyor device is cut. Fig. 2 shows the belt connecting fittings for connecting the belt. Fig. 2/a is a perspective view of the belt connecting plate; 2. Figure 1b is a side view of the belt connection bolt that fixes the belt connection plate, Figure 2C is a perspective view of the belt connection nut that is screwed into the belt connection bolt in Figure 2.b, and Figure 3.
The figure shows a conventional belt connection tool, and is shown in Figure 3, a.
FIG. 3B is a perspective view of the punch, FIG. 3C is a perspective view of the tightening tool, FIGS. 4 and 5 are explanatory diagrams showing the order of connecting and repairing a cut belt, and FIG. 6 is a belt connection according to the present invention. FIG. 7 is an exploded view of one embodiment of the belt connection jig, FIG. 7 is an overall perspective view of one embodiment of the belt connection jig according to the present invention, and FIG. 8 is an exploded view of the belt connection jig according to the present invention in use. FIG. 1...Basic attachment, 1a...
Rounded corner 1b...Female thread, 1c...Flat surface for holding spanner, 2...Tip attachment, 2a
...Male thread, 2b...JT%2c...
...Jl for bolt insertion, 2d...Flat surface for holding spanner, 3...Electric impact wrench, 3a
...Prismatic projection, A...Roller, B.
... Cash, C1, C2 ... Belt, Dl
, C2...Belt connection plate, E...Belt connection bolt, F...Protrusion, G...
・Horizontal JL H...Handle, I, I'...Punch, J...Tightening tool, K...Belt connection nut, K1... ...stop groove, a9ro, a'
9 mouth'... Bolt LL... Distance between the centers of the bolt holes of the belt connection plate, tl... Distance between the centers of the two attached punches, t2 ...
... Distance between marking centers in the cutting direction of the belt.

Claims (1)

[Scope of utility model registration request] A square hole 1a that engages with the prismatic protrusion 3a of the impact wrench 3 is formed at one end, a female thread 1b is formed at the other end, and a flat surface 1c for holding a spanner is formed on the outer peripheral surface of the hole 1a. The base attachment 1 is formed, and the base has a male thread 2a protruding from one end thereof to be screwed into the female thread 1b of the base attachment 1, and a flat surface 1c for holding a spanner is formed on the outer surface of the base attachment 1. A male screw 2a that engages with the female screw 1b of the attachment 1 is protruded, and the other end is provided with a claw 2b that engages with the retaining groove provided on the top surface of the belt connection nut 1. Belt connection bolt E that screws into K
A bolt insertion hole 2c into which the tip of the bolt is inserted is formed, and a flat surface 2 for holding a spanner is formed on the outer peripheral surface of the bolt insertion hole 2c.
1. A belt connection jig characterized in that it consists of a tip attachment 2 having a shape d formed therein.