JPS607799Y2 - Fixing structure of toggle seat block - Google Patents

Description

[Detailed description of the invention] The present invention relates to a fixing structure for a toggle seat block for a show crusher, which prevents deformation or damage due to bending moment caused by crushing force, and also prevents work such as replacing the toggle seat block. This relates to a structure designed to improve efficiency.

Conventional show crushers compress and crush the raw material supplied to the crushing chamber between the swinging jaw and the fixed jaw by the swinging motion of the swinging jaw, and the swinging motion of the swinging jaw causes the swinging jaw to move backward. This is caused by the pressing force of the toggle plate.

FIG. 1 is a side sectional view showing an example of such a show crusher. In the figure, 1 is a crushing chamber, 2 is a fixed jaw, and 3 is a swinging jaw, and the swinging jaw 3 is eccentrically attached to a rotary drive shaft 4. Therefore, vertical movement is performed by rotation of the rotary drive shaft 4.

However, the swing jaw 3 is the back frame 5 at the rear of the machine.
The movement state is regulated by a toggle plate 7 connected between the toggle seat block 6 attached to the toggle seat block 6, and the lower end of the swing jaw 3 The swinging jaw as a whole performs the above-mentioned oscillating motion about the rotary drive shaft 4 as a whole.

Therefore, the toggle plate 7 that causes the swinging jaw 3 to swing is a toggle seat 9 on the swinging jaw 3 side.
The crushing force transmitted through the toggle plate 7 causes the toggle seat block to move diagonally rearward and upward toward the toggle seat block 6 to the back frame 5.
will be pressed.

Therefore, in the conventional show crusher, as shown in the figure, the toggle seat block 6 is brought into contact with the lower surface of the support block 11 fixed to the fixed side plate 10 and the vertical front surface 12 of the back frame 5. The toggle seat block is pulled up and fixed to the support block 11 side using a vertical bolt 13 attached to the support block 11.

The size of the object to be crushed in such a show crusher is ultimately determined by the dimension l of the outlet gap 14 at the lower end of the crushing chamber 1, and as the surfaces of the fixed jaws 2 and swing jaws 3 become worn over a long period of use, , in order to maintain the dimension l of the outlet gap 14 in a normal state, the toggle seat block 6 is structured to be able to move forward, and therefore the bolt 13
It is necessary to form a movable part on the support block 11, and therefore the length of the support block in the longitudinal direction.

has no choice but to have a considerably long dimension.

Therefore, the crushing force transmitted from the toggle plate 7 in the diagonally rearward and upward direction acts on the laterally long support block 11, generating large bending stress, and the mounting portion of the support block 11 is damaged by long-term use. There is this inconvenience.

Furthermore, in the above structure, the upward movement of the toggle seat block 6 is restricted by the support block 11, so when it is desired to replace the toggle seat block 6, the toggle seat block 6 must be removed downward. I don't get it.

However, a belt conveyor for taking out the products is disposed at the bottom of the show crusher, which has the disadvantage that taking out the products is difficult.

The present invention aims to eliminate the inconveniences and shortcomings inherent in the fixing structure of the toggle seat block in the conventional show crusher as described above. A support member that supports upwardly, a wedge member that is press-fitted between a tapered surface formed on the lower surface or the upper surface of the toggle seat block and a fixed guide member, and the wedge member is moved in the press-fitting direction by the action of a screw. The present invention provides a fixing structure for a toggle seat block, comprising: a transport mechanism for transporting the toggle seat block along the guide member;

Next, embodiments embodying the present invention will be described in detail with reference to the accompanying drawings starting from FIG.

2 and 3 are a side sectional view and a schematic rear view showing the fixing structure of the toggle seat block according to the first embodiment of the present invention.

Note that the same reference numerals are used for parts common to those shown in FIG.

In these figures, the toggle seat 9 of the swing jaw 3 and the toggle seat 8 of the toggle seat block 6a are connected by a toggle plate 7.

The back of the toggle seat block 6a is connected to the back frame 5.
It is in contact with a spacer 15 disposed on or along the vertical front surface 12 of the vertical front surface 12 .

The toggle seat blocks 6 are provided on the inner surfaces of the left and right side plates 10 that cover the left and right sides of the swing jaw 3, respectively.
A block-shaped support member 17 that supports the toggle seat block upward by contacting the bottom surface 16 of the support member 17 is fixedly provided, and the upper surface 17a of the support member 17 serves as a guide surface for the toggle seat block 6a in the front-rear direction. It also serves as

Furthermore, guide members 18 are fixedly provided on the inner surface of the side frame 10 at a constant interval above the toggle seat block 6a.

At the left and right ends of the upper surface 19 of the toggle seat block 6a facing the lower surface of the guide member 18, tapered surfaces 20a that are inclined in the left and right downward directions are formed, respectively, and have the same taper angle as the tapered surfaces 20a. Tapered lower surface 21a
Left and right wedge members 22a each having a rectangular plate shape are fitted between the left and right guide members 18 and the tapered surface 20a of the toggle seat block, respectively.

A carrying screw 23, which is a type of carrying mechanism, is screwed in the horizontal direction to each wedge member 22a, and these carrying screws 2
When tightening 3, the side frame 10 and wedge member 22
a, and the toggle seat block 6a is pressed against the support member 17 below by the wedge action of the tapered surfaces 20a, 21a, etc.

Distance between the upper end of the back frame 5 and the lower surface of the support member 18.

is wider than the height of the toggle seat block 6a (determined).

Therefore, as shown in FIG. 3, when the right-hand screw 23 is rotated and tightened in the clockwise direction indicated by the arrow, the wedge member 22a moves toward the white side of the machine as indicated by the arrow 24, that is, the tapered surface 20a. 21a are engaged with each other, and the wedge member 22a is conveyed in the direction in which the wedge member 22a is press-fitted between the tapered surface 21a and the lower surface of the guide member 18a, and the toggle seat block 6a is moved to the wedge member 22a.
It is clamped and fixed between the guide member 18a and the support member 17 via a.

In addition, when removing the toggle seat block, loosen the screw 23 that has been tightened, and then insert the wedge member 22a in the direction indicated by the arrow 24.
The wedge member 22a on the right side is removed from between the toggle seat block and the guide member 18a by pressing in the opposite direction.)
, the toggle seat block 6a is lifted upward by a crane or the like, and the size l! The toggle seat block 6a is carried upward as shown by the arrow 25 through the space o and removed from the machine base.

When changing the position of the toggle seat block 6a in the front-rear direction, the thickness of the spacer 15 described above is changed.

In the above embodiment, if the carrying screw 23 is tightened too much, there is a risk that the side frame 10 will be bent.
In the second embodiment shown in the figure, such a fear is eliminated.

That is, in FIG. 4, a block 27 having a through hole 26 into which a carrying screw 23a is inserted is fixed to the top surface of the end of the toggle seat block 6a, and the tip of the carrying screw 23a attached to the block 27 is fixed. The threaded part is the wedge member 22
It is screwed together with the female screw carved in a.

Therefore, when the carrying screw 23a is rotated in the direction of movement shown by the arrow 28, the wedge member 22a moves away from the side frame 10, that is, in the direction in which the tapered surfaces 20a and 21a engage in a wedge shape, and the toggle seat block 6a is fixed. be exposed.

In this case, since the carrying screw 23a does not press the side frame 10, there is no risk of deformation of the side frame.In each of the above embodiments, the wedge member 22a is moved in the left-right direction to fix the toggle seat block. Although the case is shown, the direction of movement of the wedge member may be in the direction of the longitudinal force of the machine base.

Such examples are shown in FIGS. 5 and 6.

That is, in this case, a tapered surface 20b in the front-rear direction is formed on the upper surface of the toggle seat block 6b, and a wedge member 22b having a tapered surface 21b on the lower surface that contacts the tapered surface 20b is formed on the lower surface of the guide member 18, as in the above embodiment. and the upper tapered surface 20b of the toggle seat block 6b.

Further, a block 29 is fixed to the inner surface of the side frame and has a screw 23b screwed thereon for pressing the wedge member 22b in the press-fitting direction.

Therefore, in this case, when the carrying screw 23b is rotated in the tightening direction, the wedge member 2 is moved by the tip of the carrying screw 23b.
2b is press-fitted between the toggle seat block 6b and the guide member 18, and the toggle seat block 6b is clamped and fixed between the support member 17 and the guide member 18 via the wedge member 22b.

In this example, the wedge member 22b is pressed from the front to the rear of the machine using the carrying screw 23b, but the block 29 is attached to the rear side of the wedge member 22b and the carrying screw is pressed in the same manner as shown in FIG. It is also possible to exert a wedge effect by pulling the carrying member backward.

In any of the first to third embodiments described above, the case has been described in which the wedge member is provided on the top of the toggle seat block to press the toggle seat block downward.
A similar function can be obtained by providing a wedge member at the bottom of the toggle seat block so as to press it upward.

That is, in the example shown in FIG. 7, a wedge member 22c that is carried in the left-right direction, similar to that shown in FIG. By the carrying action of the carrying screw 23c, the toggle seat block 6c is carried toward the white side of the machine shown by the arrow 30 in FIG. 8, and is press-fitted between the tapered surface 20c and the guide member 18a fixed to the lower side plate.
lift upwards.

The upper surface of the toggle seat block 6c is the side frame 10
The toggle seat block 6c is in contact with the lower surface of a spacer block 31 that is removably disposed at the lower part of the support member 17a fixed to the support member 17a, and the toggle seat block 6c is connected to the support member 17a and the guide member via the spacer block 31 and the wedge member 22c. 18
It is clamped and fixed between a.

The spacer block 31 has a width for pulling out the toggle seat block 6c upward.

This is to maintain the gap between the toggle seat block 6
To remove c, loosen the carrying screw 23c and remove the wedge member 22c.
By slightly moving the toggle seat block 6c in the opposite direction of the arrow 30, the toggle seat block 6c is slightly lowered, the clamping force on the spacer block 31 is released, the spacer block 31 is removed, and the toggle seat block 6c is moved upward through the gap of width L0. This is to take out the toggle seat block 6C.

As described above, the present invention is a fixing structure for a toggle seat block that is attached to the front surface of a back frame for a show crusher and supports the crushing force transmitted from the toggle plate in the diagonal backward and upward direction. a support member that comes into contact with the lower surface and supports the toggle seat block in a downward or upward direction; a wedge member that is press-fitted between a tapered surface formed on the lower surface or the upper surface of the toggle seat block and a fixed guide member; This toggle seat block fixing structure is characterized by having a carrying mechanism for carrying the wedge member along the guide member in the press-fitting direction by the carrying action of the screw, so that when the toggle seat block is removed, Since the block can be taken out upwards, the toggle sheet block can be taken out easily without being obstructed by the belt conveyor at the bottom for carrying out products, which not only improves work efficiency but also makes it easy to take out the toggle sheet block. The wedges for attachment can be made extremely small in the longitudinal and lateral directions of the machine, and even when subjected to crushing forces acting diagonally backward and upward, no large bending force is applied (
Only a simple shearing force is applied, which improves the durability of the entire fixed structure.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a conventional show crusher, FIGS. 2 and 3 are side sectional views and a schematic rear view showing the fixing structure of the toggle seat block according to the first embodiment of the present invention, and FIG. 4 is a side sectional view of a conventional show crusher. 5 and 6 are side sectional views and rear views showing the fixing structure according to the second embodiment, and FIG. 7 is a front sectional view of the carrying screw part showing the fixing structure according to the second embodiment. FIG. 8 is a side sectional view showing the fixing structure according to the third embodiment, and FIG. 8 is a sectional view taken along the line A--A in FIG. 7. 5... Back frame, 7... Toggle plate, 6a, 6b, 6c... Toggle seat block, 17 a, 17 b = Support member, 1B,
18a...Guide member, 22a, 22b
, 22 c...Wedge member, 23923at 2
3bt 23cm---Carrying member.

Claims (1)

[Scope of utility model registration request] A fixing structure for the toggle seat block that is attached to the vertical front of the back frame for the crusher and supports the crushing force transmitted from the toggle plate in the diagonal backward and upward direction. a support member that supports the toggle seat block in a downward or upward direction; a wedge member that is press-fitted between a tapered surface formed on the lower surface or the upper surface of the toggle seat block and a fixed guide member; A fixing structure for a toggle seat block, comprising a carrying mechanism that carries the screw along the guide member in the press-fitting direction by the carrying action of the screw.