JPS6099351A - Detachable device for striking plate of impact type crusher - 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] This invention relates to an impact crusher, in particular, a rotor is installed in a lower frame so as to be rotatable in forward and backward directions, and a striking plate is removably attached to the rotor, and this rotor is removably fixed to the lower frame. This invention relates to a striking plate attachment/detachment device for an impact crusher that is surrounded by an upper frame.

The above-mentioned impact type crusher is shown in FIG. 1 in its attached and detached state.

In the figure, 1 indicates a lower frame, this lower frame IKo-2 is installed so that it can rotate forward and backward, and these 4-
In the case 2, a striking plate 3 is removably attached to a mounting groove 4 provided in the rotor 2, and a gate-shaped upper part is fixed with a supply port for the material to be crushed at the horizontal top corresponding to the upper part of the case 2. The lower ends of both side plates of the frame 5 are removably fixed to the lower frame 1, and on both sides, an upper movable frame 6゜6' is pivoted at its base end to the lower frame 1 by a pivot 7.1, and an actuating member 8. Due to the operation of .8', the lid is normally closed and the rotor 2
T-enclosed and opened when the striking plate is attached/detached, and when the lid is closed, each frame is connected by a coupling tool (not shown).

In such a device, when attaching or detaching the striking plate 3, remove the coupling tool, operate the actuating member 8.8' to open the movable frame 6.6', and move the striking plate 3 as shown in the figure. Regarding the case where the rotor 2 is rotated so as to be located in the space outside the fixed frame 5 and the striking plate 3 is pushed into the mounting groove 4,
In an example (not shown), the striking plate is suspended with a hanging tool such as a chain block, brought to the vicinity of the lower frame 1, and since the striking plate cannot be pushed in with the hanging tool, it must be pushed in manually. Since the striking plate 3 slides on the lower surface of the groove 4, not only does it require a great deal of effort due to friction due to the weight of the striking plate 3, but also the moment exerted by the striking plate 3 is applied to the rotor 2, causing it to try to rotate. Therefore, it is necessary to perform a quiet and troublesome operation to prevent this, and as a result, there is an inconvenience in that the attachment/detachment operation is extremely inefficient.

The purpose of this invention is to eliminate the inconvenience of attaching and detaching the striking plate in the conventional crusher as described above, and to eliminate the inconvenience when attaching and detaching the striking plate by installing it in the upper frame when the rotor mounting groove is brought to the top. To provide a striking plate attaching/detaching device which can be attached/detached with the assistance of a striking plate attaching/detaching member, minimizing the required manpower, simplifying the work, requiring less labor, and efficiently attaching/detaching as a whole. It is in.

In order to achieve the above-mentioned object, the present invention is such that the joint surface of the upper fixed frame with the movable frame is arranged such that the joint surface of the upper fixed frame with the movable frame is downward to the fixed frame side and upward to the movable frame side with respect to the vertical line passing through the center of the rotor. A supply port for the material to be crushed is provided at the top of the fixed frame, and a striking plate attachment/detachment member is installed near the vertical line at the top of the fixed frame. .

An embodiment of the present invention shown in FIG. 2 and subsequent figures will be described.

In this embodiment, reference numeral 11 denotes a lower frame, on which a rotor 12 is installed so as to be rotatable in forward and reverse directions, and a striking plate 13 is removably installed in a mounting groove 14 provided in the rotor 12. Details of this part will be described later with reference to FIG.

On the lower frame 11, a fixed frame 5 on one side surrounding the rotor 2 and a movable frame 16 on the other side a are removably installed, and the joint surface between the fixed frame 15 and the movable frame 16 is as follows. Top joint part 1911 respectively
9';20.20' is the vertical line X passing through the center of rotor]2
- Regarding XK, the lower joint surface 39.20 is movable and frame 1
6gl1lK, and the upper joint surface 19.20' is at a position offset toward the fixed frame 15 side.

The top plate of the ll111M frame 150 is provided with a material supply port to be crushed, and a pivot point provided on both side plates (only one side plate is shown in the drawing) near the vertical line An arm 22 is pivotally attached to 21, and a drawing arm is connected to one end of each arm 22,
and a rail 23 that protrudes outward from one side plate.
is attached, and a weight #24 is attached to the other end, so that the arm 22 is normally at a position as shown in FIG. 2 compared to the weight tK of the weight 24.

The rear parts of both frames 15, 16 are divided to form tilting frames 15', 16', which are removably connected by frame 15, 161C connector 25, and further Like the conventional one, it is pivoted on the lower frame 11 with a pivot 17.17'.
The actuating member 18.18' allows the flap A15.16 to be tilted independently or together with the flap A15.16.

In the above-described device, when attaching and detaching the striking plate 13 to and from the rotor 12, the connectors 25 are removed from necessary locations of the crusher, which is in the state shown in FIG. 2, and the actuating member 18' is activated. Then, the movable frame 16 is opened via the tilting frame 16' as shown in FIG. As a result of the above, a large space is formed above the rotor 12.

Thereafter, the arm 22 is rotated to bring the rail 23 to the lowest position, and a hanging tool 26 such as a chain link is attached thereto so as to slide on a roller 27 provided at the upper part. Then, when adjusting the rotor 12, the striking plate 13 to be attached/detached or the mounting groove 14 into which it is pushed is positioned at the uppermost level and below the space. FIG. 3 shows a state in which the striking plate 3 is gripped by the gripping tool 28 hanging from the hanger 26, just before the striking plate 13 is pulled out or pushed in. When pulling it out, after doing this, the hanging tool 26 is taken out along the rail 23 to the outside of the side plate of the frame 15, and when it is pushed in, the operation is the opposite. After attaching and detaching the required number of striking plates 13 in this way, when the hanging tool 26 is removed from the arm 22, this arm 22 returns to the position shown in the second figure under the action of the weight 24, so that the frame 16 can be moved back to its original position. The whole is returned to the state at the time of crushing. In this case, the arm 22 may be rotated by adjusting the weight of the arm itself instead of using a weight, or by employing other appropriate fluid equipment or mechanical operating members. In addition, other appropriate hanging devices may be used, and they may be attached to the arm or detachable, but in any case, they should be designed so that they will not easily come off the arm during work. It is necessary to keep it like this.

In this embodiment, as shown in FIG. 5, the rotor 12 has a plurality of mounting grooves 3 arranged radially at equal intervals on the circumference.
The mounting groove 31 has a rotor main body 34 having an opening edge 33 that protrudes oppositely from the opening of the mounting groove 31 and has an inclined surface 32 that widens from the outside to the inside.
Prisoner in the same figure). A top plate 35 is attached to the mouth edge 33 of this rotor body 34.
, consisting of a bottom plate 36 and a side plate 37, a top plate 35, and a bottom plate 36.
A holder 41 is provided with inclined surfaces 38 and 39 formed at the connecting corners of the side plate 37 and an inclined surface 40 that cooperates with the inclined surface 32 of the mouth edge 33 on the back surface of the side plate 37.
The holder 41 is mounted so as to slide due to contact between the two inclined surfaces ((E9) in the same figure).Furthermore, in the gap between the front faces of the side plate 37 of this holder 41, the width of the groove is smaller than the width of the gap. has a fitting groove 42 that is larger than the front width of the side plate 37,
In addition, the striking plate 13, which sandwiches this fitting groove 42 and has sharp sloped surfaces 43 and 44 whose upper and lower walls cooperate with the inclined surfaces 38 and 39 of the side plate 37, connects the fitting groove 42 to the front side of the side plate 37. It fits loosely into the 1741 gap between them (see figure (Q)).

When the rotor 12 starts working, the striking plate 13 moves outward due to centrifugal force, engages with the inclined surface 39 of the side plate with its inclined surface 44, and is pushed out, thereby causing the holder 41 to move along the inclined surface. 4o slides on the inclined portion 32 of the rotor body 34, thereby moving outward and inward, and in this way, the rotor body 34, the holder 41, and the striking plate 13 are firmly connected to each other. This is the case ((1)l in the same figure).

When you want to remove the striking plate 13 from the rotor body 34, you can easily remove it by hitting the top of the striking plate 13 with a hammer or by moving it inward to release the connection between the three members 13, 34, and 41. be able to. Note that υ in the same figure is a vertical cross-sectional view of the stone part with the inclined surface 32° 40 sliding.

Reference numeral 46 denotes a counterplate arranged symmetrically with respect to the vertical @X-X across the central portion of the rotor 12, and a pivot 47 integrally protruding from the plate is vertically provided within the upper frame. It is rotatably fitted and locked into a slot 49 provided in the support plate 48, and its angle is adjusted by an actuating member 50. In order to replace the orange plate 46 with the tilting frame] 5', J6' is separated from the frame 15°16, the actuating member 38.18' is actuated, and both frames 15', IG' are moved. The frame 15' shown in the third figure
It will be done in concert like this.

In the above-mentioned device, when the material to be crushed is supplied from the supply port through the chute 51, the material to be crushed is fed into the chute 51.
The impact plate 1 collides with each slope and is decelerated sequentially.
3, fall vertically near the striking plate 13, are blown away by the striking force of the striking plate 13, collide with the repelling plate 46, and are crushed, or are rebounded and then struck again by the striking plate 13Vc and are crushed. By repeating the operation, the pieces crushed to the desired size are discharged from the opening at the bottom.
The same applies regardless of whether the 0 rotation direction is forward or reverse.

This invention is as described above, and the joint surface of the upper fixed frame with the movable frame is deviated downward toward the fixed frame and upward toward the movable frame with respect to a vertical line passing through the center of the rotor. A striking plate attachment/detachment member is installed near the spit line at the top of the fixed frame, and a crushing material supply port 12 is provided at the top, so that when the striking plate is attached/detached, By opening the movable frame, a large space is created above the rotor, so if you use this to control the rotor so that the striking plate reaches the top of the rotor, its attachment and detachment will be performed by attaching it to the fixed frame. Since the simple task of operating the attachment/detachment tool can be accomplished without any effort, the amount of manpower required is minimal and the efficiency is extremely high.

[Brief explanation of drawings]

Fig. 1 is a front view showing the state of a conventional impact crusher when the striking plate is attached and detached, Fig. 2 is a front view of the embodiment of the present invention when crushing, and Fig. 3 is the same as the above when the striking plate is attached and detached. Fig. 4 is a partially longitudinal front view of Fig. 2, and Fig. 5 is a partial front view of Fig. 4. (3) G
)) It is an explanatory view showing a state in which the striking plate is attached to the holder. 11... Lower frame 12... Rotor 13...
Blow plate 14...Mounting groove

Claims (1)

[Claims] 1. An impact crusher in which a striking plate is removably attached to a rotor that is installed in a lower frame so that it can rotate in forward and backward directions, and this impact plate is surrounded by an upper frame that is detachably fixed to the lower frame. In the above, the upper frame has a fixed frame and a movable frame divided in the vertical direction, and the joint surface of the fixed frame with the movable frame is downward to the fixed frame side with respect to a vertical line passing through the center of the rotor, In addition, the upper part is at a position deviated toward the movable frame, and the top of the fixed frame is provided with a supply port for the material to be crushed, and a striking plate attachment/detachment member is installed near the vertical line at the top of the fixed frame. A striking plate attachment/detachment device featuring: