JP2531608Y2 - Rubber liner - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention is intended to function crushed stone, gravel, conveying hoppers ore chute, the rubber liner used for bonding the inner of such bed or rod mill or a ball mill track.

[0002]

2. Description of the Related Art As a rubber liner fixed to a hopper, a chute, a truck bed or the like for transporting crushed stone, gravel, ore, etc., it is formed into a rectangular plate shape, and bolt holes are formed inside four corners thereof. 2. Description of the Related Art There is known a bolt hole and a bolt hole formed in a steel plate such as the hopper and the like, in which a bolt is inserted and tightened and fixed. Further, a backing iron plate is vulcanized and adhered to the back surface of the rubber liner, and a bolt hole is formed by communicating with the rubber liner and the backing iron plate,
There has been known one fixed to an iron plate having the same configuration as described above. Also, as shown in FIG. 5, a metal grooved rail 2 is vulcanized and bonded to the back surface of the rubber liner 1, and the head 3a of the bolt 3 is slid along the grooved rail 2 to constitute a hopper or the like. There has been known one in which the position of the bolt 3 is adjusted to the bolt hole 4a of the iron plate 4 to be formed. In addition, 5
Is a nut and 6 is a washer.

[0003]

When the liner made of the above rubber alone is attached to a constituent iron plate such as the above hopper,
The shape can be easily corrected by cutting off a part according to the shape of the constituent iron plate, but on the other hand, since it is formed of rubber alone, the strength is low, and after mounting, the boundary between the adjacent liner There is an accident such as powder particles of the treated material entering from the back to the back surface, the liner may fall off, and the position of the mounting bolt is determined by the mold used to mold the liner. However, when a bolt hole of a constituent iron plate is drilled at a position to avoid this obstacle, there is a problem that the bolt cannot be inserted.

A rubber liner having a backing iron plate on the back surface is excellent in strength and does not allow powder particles of a processed material to enter the back surface, but the position of the mounting bolt is determined in the same manner as described above and is corrected. In addition, since rubber and metal are integrated, it is inconvenient to cut off a part and correct the shape, and it is difficult to dispose of the waste. Further, when the grooved rail is fixed, a bolt can be placed at an arbitrary position on the grooved rail, but it is inconvenient to correct the shape by cutting off, and it is difficult to dispose of the waste.

According to this invention, it is easy to correct the shape by cutting off a part of the material, and further, there is no intrusion of the processed material particles from the boundary between the adjacent liner and backing, and there is no obstacle in the constituent iron plate. In this case, the position of the bolt can be moved, and the waste disposal is further facilitated.

[0006]

The rubber liner according to the present invention is formed in a plate shape or a square rod shape with rubber, and has a rail mounting groove on the back surface along the entire length in the vertical or horizontal direction, and a narrow width opening. And a narrow groove communicating with the opening along the entire length of the groove mounting portion of the rail mounting groove. The metal guide rails are slidably fitted, the heads of the liner fixing bolts slide into the guide rails, and the shafts of the bolts slide into the narrow grooves of the guide rails and the openings of the rail mounting grooves. It is characterized by being movably inserted.

[0007]

The rubber liner of the present invention is mounted by fitting a guide rail into the inner part of the rail mounting groove on the back surface thereof, inserting the head of a fixing bolt into the guide rail, and connecting the shaft to the rail of the liner body. Protrude outward from the mounting groove, adjust the position of the bolt along the guide rail according to the interval between the bolt holes pre-drilled on the rubber liner mounting surface of the chute, for example, and attach the shaft of this bolt to the bolt hole. It is inserted and projected to the back of the chute, and a nut is tightened and fixed to the projected portion. If there is an obstacle on the mounting surface, each part of the liner body and the guide rail is individually cut off according to the shape of the obstacle, and then the guide rail is attached to the liner body. When the liner body becomes unusable due to wear, the guide rail is removed from the liner body.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A rubber liner 10 shown in FIGS.
It has a square plate shape, and vertical rail mounting grooves 11 are formed on the left and right sides thereof in parallel with the bolt holes 4a of the iron plate 4 constituting the chute at the same interval, and the left and right rail mounting grooves 11, 11 are formed. Rectangular hollow part 1 in the middle of
2 are formed. The rail mounting groove 11 includes a narrow opening 11a and a wide groove inner part 11b following the opening 11a. The groove inner part 11b has the groove inner part 1b.
A cylindrical guide rail 13 having the same cross-sectional shape as 1b is removably inserted, and a narrow groove 13a provided on the entire lower surface of the guide rail 13 communicates with the opening 11a of the rail mounting groove 11. The square head 14a of the fixing bolt 14 is slidably fitted inside the guide rail 13, and the shaft portion 14b of the bolt 14 is slidably fitted into the narrow groove 13a of the guide rail 13 and the opening 11a of the rail mounting groove 11. The shaft portion 14b is inserted into the bolt hole 4a of the iron plate 4, and a lower end of the shaft portion 14b is
Is tightened.

The embodiment of FIG. 3 is an example of a ball mill liner. 20 is a cylindrical shell of the ball mill, 20a is a bolt hole drilled in the shell 20.
A plate-like shell plate 21 and a lifter bar 22 having a rectangular cross section are alternately arranged in the circumferential direction on the inner surface of the outer shell 0, and the lifter bar 22 is superimposed on the flanges 21a, 21a projecting from the lower surfaces of the left and right shell plates 21, 21. Can be On the lower surface of the lifter bar 22, a rail mounting groove 23 having a narrow opening and a wide groove deep portion is formed in a length direction (a direction perpendicular to the paper surface), and a cylindrical guide rail 24 is formed in the groove deep portion. The guide rail 24 has a small groove 24a formed on the entire lower surface thereof.
Communicating with the opening of.

The head 25a of the fixing bolt 25 is slidably fitted inside the guide rail 24, and the shaft 25b of the bolt 25 is slidably fitted into the narrow groove of the guide rail 24 and the opening of the rail mounting groove 23. This shaft 2
5b is inserted into the bolt hole 20a of the shell 20, and a nut 28 is fastened to the lower protruding end thereof via a rubber washer 26 and an iron washer 27. In this embodiment, since the inner portion of the rail mounting groove 23, the guide rail 24 and the bolt head 25a are formed by bending left and right edges downward, respectively, the lower surface of the lifter bar 22 is formed on both sides of the opening. Is prevented from opening.

In the embodiment shown in FIG. 4, the heads of the guide rail 30 and the bolt 31 are each formed in a mountain-shaped bent shape. In this case, the same depth is applied to the inner part of the rail mounting groove in the rubber liner. Is formed in a bent shape. Reference numeral 30a denotes a narrow groove formed on the guide rail 30, and the shaft portion 31b of the bolt 31 is formed by the narrow groove 30a.
Will be guided.

[0012]

As described above, in the rubber liner of the present invention, the guide rail is slidably fitted to the inner part of the rail mounting groove formed on the back surface, and the fixing bolt is fixed to the guide rail. rubber liner attachment of the shaft portion by inserting the head from the rail mounting groove of the liner body from those which is adapted to project outwardly, both the guide rail is fixed by holding the rubber liner, for example, shoots, etc. The position of the bolt can be adjusted along the guide rail according to the interval between the bolt holes pre-drilled on the surface. Since the rubber liner is in close contact with the liner mounting surface over the entire length in the direction of the guide rail, there is no possibility that powder particles of the treated material enter from the boundary with the adjacent rubber liner and go behind. Also, since the metal guide rail can be removed from the rubber liner,
If there is an obstacle on the mounting surface, remove the guide rail once, cut the rubber liner according to the shape of the obstacle, adjust the shape, and guide as necessary.
After cutting the rail with a metal cutting machine,
Can be attached to the rubber liner body. Ma
If the rubber liner becomes unusable due to abrasion, the guide rail can be removed to separate the rubber portion from the metal portion, thereby facilitating waste disposal.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a first embodiment.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view of a second embodiment.

FIG. 4 is a sectional view of a modified example of a guide rail.

FIG. 5 is a sectional view showing an example of a conventional rubber liner.

[Explanation of symbols]

4: Iron plate constituting chute, etc., 4a: Bolt hole, 1
0: rubber liner, 11: rail mounting groove, 11a: opening, 11b: groove depth, 12: hollow, 13: guide rail, 13a: narrow groove, 14: fixing bolt, 14a: bolt head, 14b: Shaft, 20: cylindrical shell of ball mill, 20a: bolt hole, 21: shell plate, 22:
Lifter bar, 23: rail mounting groove, 24: guide rail, 24a: narrow groove, 25: fixing bolt, 25a: head,
25b: Shaft, 30: Guide rail, 31: Fixing bolt.

Claims (1)

(57) [Scope of request for utility model registration] 1. A rail-shaped groove formed on a rear surface of a rubber plate or square rod along the entire length in the vertical or horizontal direction, and a narrow width opening and a wide groove depth following the opening. And a cylindrical metal guide rail having a narrow groove communicating with the opening along the entire length of the inner part of the rail mounting groove. The head of the liner fixing bolt is slidably inserted into the guide rail, and the shaft of the bolt is slidably inserted into the narrow groove of the guide rail and the opening of the rail mounting groove. Rubber liner.