KR200433277Y1 - Adjustment device for gap of cone crusher - Google Patents

Abstract

The present invention relates to a gap adjusting device of the cone crusher, the purpose of which is by a piston and a cylinder coaxially installed on the upper side of the rotating shaft for rotating the mantle to easily adjust the gap between the mantle and the concave forming the crushing chamber It is to provide a gap adjusting device of the cone crusher to move the rotating shaft up and down. It has a cylindrical shape of the lower frame 10, the rotating shaft 20 is accommodated in the lower frame 10 and installed to be rotatable in an eccentric state, and a cone shape coupled to the outer peripheral surface of the rotating shaft 20 The mantle core 30 and the mantle 31, the upper frame 40 seated on the upper part of the main frame 10, and screwed to the upper frame 40, are spaced apart from the mantle 31 by a proper distance. In the cone crusher including a concave 50 and a driving means 60 for rotating the rotary shaft 20, the piston 21 is fixed coaxially to the upper side of the rotary shaft 20, and the piston ( The cylinder 22 is installed coaxially to the outside of the 21, and the mantle 31 fixed to the rotating shaft 20 in accordance with the lifting and lowering of the piston 21 by the fluid supplied to the inside of the cylinder 22. This rise and fall is made to adjust the interval between the concave 50 and the mantle (31).

Frame, rotating shaft, mantle core, mantle, concave, driving means

Description

ADJUSTMENT DEVICE FOR GAP OF CONE CRUSHER

1 is a front view of a cone crusher according to the prior art.

Figure 2 is a front sectional view of a cone crusher according to the prior art.

3 is a cross-sectional view of a cone crusher according to the present invention.

Figure 4 is a plan sectional view of the cone crusher according to the present invention.

Figure 5 is a cross-sectional view of a narrowed gap between the mantle and the concave in the cone crusher according to the present invention.

(Explanation of symbols for the main parts of the drawing)

10: lower frame 20: axis of rotation

21: piston 22: cylinder

23: Coupling Nut 24: Knock Nut

25: cylinder cover 26: spherical bearing

27: spherical bearing 30: mantle core

31: mantle 40: upper frame

41: hopper 42: support

50: concave 60: drive means

61: eccentric member 62: power transmission member

63: cover 70: hydraulic pump

71: accumulator 80: oil tank

81: oil pump

The present invention relates to a gap adjusting device of the cone crusher, and more particularly to the piston and the cylinder coaxially installed on the upper side of the rotating shaft for rotating the mantle in order to easily adjust the gap between the concave and the mantle forming the crushing chamber It relates to a gap adjusting device of the cone crusher to move the rotating shaft up and down by.

In general, the collecting process of the aggregate is to crush the rock using explosives, such as dynamite in the quarry, mine, etc., and then shred to a suitable size required by the user using a crusher, the crusher A jaw crusher for crushing a relatively large mass of gemstones, and a cone crusher for crushing aggregates crushed from the jaw crusher to a smaller size.

As a conventional example of an example of such a cone crusher, it can be found in the Republic of Korea Patent No. 0377871 "concrete capable of automatic discharge and foreign clearance adjustment".

1 is a view showing an example of a conventional cone crusher.

As shown, the conventional cone crusher has an eccentric sleeve (3e) and the main shaft (3f) connected to the power shaft (3b) and a pair of bevel gears (3c, 3d) that is rotated by putting aggregate into the hopper (5). Is located at the lower side of the top cell 1f in a cone crusher for rocking the mantle 3g connected to the upper side and crushing the aggregate supplied between the concave 3h provided at the lower side of the top cell 1f. The hydraulic cylinder 2a and the accumulator 2b which are connected in the circumferential direction by the pin 2d to the fixing base 2c installed on the protrusion 2e of the top frame 1c and the main frame 3 on the lower side. Consisting of the foreign matter automatic discharge device (2) for automatically raising the top frame (1c) when the foreign matter penetrates, and the dust ring (4) of urethane to prevent dust intake of the lubrication system from the upper side of the case (3i).

In the conventional cone crusher configured as described above, the main shaft 3f is eccentric through the pair of bevel gears 3c and 3d while the power shaft 3b rotates when the pulley 3a is rotated by the rotation of a motor not shown. It is installed to be inclined in the case 3i through the sleeve 3e to oscillate.

At this time, when the aggregate is injected into the hopper 5, the aggregate is injected evenly downward from the distributor, and the aggregate injected between the mantle (3g) and the concave (3h) is the interval between the mantle (3g) and the concave (3h). When it is narrowed, it is crushed while being compressed, and is discharged to the chute of the main body through the repeated action of falling when the gap between the mantle 3g and the concave 3h is widened.

In order to adjust the size of the aggregates to be crushed in the above, it is necessary to adjust the gap as much as the wear ratio of the mantle (3g) and the concave (3h), for this purpose, the automatic clearance adjusting device (1) is the mantle (3g) and The gap of 3h) can be automatically adjusted. When power is supplied to the adjust motor 1a, the gearbox 1 is decelerated by the reducer 1b, and then the ring gear 1e is rotated through the pinion gear 1d, thereby the top cell 1f. Is rotated and raised or lowered according to the rotational direction, and accordingly, the top cell 1f is rotated through the automatic clearance adjusting device 1 so that the gap between the mantle 3g and the concave 3h can be automatically adjusted. do.

In addition, since at least five hydraulic cylinders 2a are installed in the circumferential direction, the main frame 3 and the top frame 1c are fixed at a constant pressure, and when the foreign matter is introduced, the pressure increases. Since the force is transmitted to the hydraulic cylinder 2a, the top frame 1c is raised from the hydraulic cylinder 2a through the accumulator 2b to widen the space between the mantle 3g and the concave 3h to discharge foreign substances. .

However, in the conventional cone crusher as described above, in order to adjust the distance between the concave 5 and the mantle 3a, the ring gear installed outside the top shell 1f is rotated by the adjust motor 1a. By rotating by (1d) and by the hydraulic cylinder 2a and the accumulator 2b provided between the main frame 3 and the top frame 1c, there is a complicated structure.

The present invention has been made to solve such a conventional problem, and its object is to provide a piston and a cylinder coaxially installed on the upper side of the rotating shaft for rotating the mantle in order to easily adjust the gap between the concave and the mantle forming the crushing chamber. By providing a gap adjusting device of the cone crusher to move the rotary shaft up and down by.

Another object of the present invention is to maintain the eccentric state of the rotating shaft and the cylinder, and to receive the eccentric load to be broken. In addition, the present invention provides a cone crusher spacing device for installing spherical bearings and spherical bearings that can withstand vertical loads.

The present invention for achieving this object is a cylindrical lower frame, a rotating shaft that is accommodated inside the lower frame and installed to be eccentrically rotatable, and a cone-shaped mantle core and mantle coupled to the outer circumferential surface of the rotating shaft. And an upper frame seated on an upper portion of the main frame, a concave screwed to the upper frame and spaced apart from the mantle by an appropriate distance, and a driving means for rotating the rotating shaft. The piston is fixed coaxially to the upper side, the cylinder is installed coaxially to the outside of the piston, the mantle fixed to the rotating shaft in accordance with the lifting and lowering of the piston by the fluid supplied into the cylinder is raised and lowered the cone It is designed to adjust the gap between the cave and the mantle.

In addition, while maintaining the eccentric state of the rotating shaft and the cylinder inside the support portion of the upper frame, receiving an eccentric load to be broken. In addition, spherical bearings and spherical bearings are installed to withstand vertical loads.

Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

2 to 4 is a view showing a cone crusher according to the present invention.

As shown in the figure, the cone crusher has a cylindrical lower frame 10, a rotating shaft 20 accommodated in the lower frame 10 and installed in an eccentric state, and an outer circumferential surface of the rotating shaft 20. Cone-shaped mantle core 30 and mantle 31 coupled to the upper frame 40 is installed seated on the upper portion of the lower frame 10, screwed to the upper frame 40 and the mantle 31 ) And a concave 50 spaced apart from the proper distance, and a driving means 60 for rotating the rotating shaft 20.

The driving means 60 may rotate the rotating shaft by a pulley installed on the side of the lower frame as in the prior art, but in the present invention, it is preferable to directly drive the rotating shaft 20 at the lower side of the lower frame 10. .

That is, the driving means 60 of the present invention is installed to surround the lower side of the rotary shaft 20 is coupled to the eccentric member 61 and the eccentric member 61 for eccentrically rotating the rotary shaft 20, the outside Will be made to the power transmission member 62 receives the power from.

The power transmission member 62 is most preferably a pulley that receives power to the belt.

In addition, it is preferable that the bearing (B) is coupled to the inside and the outside of the eccentric member (61) and the cover (63) to the outside.

In addition, the upper side of the upper frame 40 is provided with a hopper 41 into which aggregate is introduced.

In addition, the piston 21 is fixed coaxially to the upper side of the rotary shaft 20, the cylinder 22 is installed coaxially to the piston 21, the fluid supplied to the interior of the cylinder 22 As a result, the mantle 31 fixed to the rotary shaft 20 moves up and down as the piston 21 moves up and down to adjust the gap between the concave 50 and the mantle 31.

In addition, a through hole 22a is formed at one side of the cylinder 22 so that the fluid supplied from the hydraulic pump 70 flows into the cylinder 22 to raise and lower the piston 21.

In addition, the upper outer side of the rotating shaft 20, while maintaining the eccentric state of the rotating shaft 20 and the cylinder 22 in the support portion 42 of the upper frame 40, the eccentric load so that the fracture is made Also, the spherical bearing 26 and the spherical bearing 27 can be installed to withstand the vertical load, so that the rotation shaft 20 can be smoothly rotated, and the rotation shaft 20 and Between the piston 21 is made to be fixed by a coupling nut 23 in the form of a wedge at the top.

In addition, the oil tank 80 and the oil pump 81 to circulate the oil into the support 42 of the upper frame 40 for lubrication of the spherical bearing 26 and the spherical bearing 27. Preferably, the oil is to flow from the bottom to the top.

In addition, the mantle core 30 and the mantle 31 are fixed to the central portion of the rotation shaft 20 by a lock nut 24.

In addition, the fluid supplied to the cylinder 22 to raise and lower the rotary shaft 20 fixed to the piston 21 by the fluid supplied by the hydraulic pump 70, the hydraulic pump 70 and the cylinder The accumulator 71 is installed on the conduit between the 22 to absorb the shock when abnormal pressure is generated in the crush chamber composed of the concave 50 and the mantle 31.

On the other hand, the cylinder cover 25 for protecting the piston 21 and the like is installed on the upper outer side of the rotary shaft 20, the aggregate is introduced into the inlet formed between the cylinder cover 25 and the hopper 41. will be.

Referring to the process of crushing the aggregate by the cone crusher of the present invention configured as described above are as follows.

First, the power transmission member 62 installed in the lower portion by the external power source is rotated, and the eccentric member 61 is rotated by the rotation of the power transmission member 62, and thus the rotation shaft 20 is eccentrically rotated. Will be.

As the rotating shaft 20 is rotated, the mantle 31 is rotated and the concave 50 installed inside the mantle 31 and the upper frame 40 to which the aggregate injected into the hopper 41 is rotated. Crushing will occur.

At this time, the present invention is to improve the rotation rate of the rotary shaft 20 by the rotary shaft 20 is directly driven by the eccentric member 61 in accordance with the rotation of the power transmission member 62 installed in the lower portion.

In addition, the cone crusher of the present invention is simply adjusted by the piston 21 and the cylinder 22 installed on the upper portion of the rotary shaft 20, the gap between the mantle 31 and the concave 50, which is a hydraulic pump ( As the hydraulic pressure supplied from 70 flows into the through hole 22a formed at one side of the cylinder 22, the piston 21 is raised, and thus the rotating shaft 20 fixed to the piston 21 is raised to the mantle. The gap between the 31 and the concave 50 is narrowed, the size of the aggregate injected into the hopper 41 is changed.

In addition, when abnormal pressure is generated in the crushing chamber, the shock is absorbed by the accumulator 71 installed on the pipeline, and when the abnormal pressure is removed, the distance between the mantle 31 and the concave 50 is adjusted again. .

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, it will be understood that various modifications and other embodiments are possible to those skilled in the art.

As described in detail above, the gap adjusting device of the cone crusher of the present invention allows the rotary shaft to move up and down by a piston and a cylinder coaxially installed on an upper side of the rotary shaft for rotating the mantle, thereby forming a crushing chamber. The gap between them can be easily adjusted.

In addition, the gap adjusting device of the cone crusher of the present invention is installed inside the support of the upper frame spherical bearing and spherical bearing (spherical bearing) to maintain the eccentric state of the rotating shaft and the cylinder, under the eccentric load to be broken It can also withstand vertical loads.

Claims (3)

Cylindrical lower frame 10, a rotating shaft 20 accommodated in the lower frame 10 and installed to be rotatable in an eccentric state, and a cone-shaped mantle coupled to an outer circumferential surface of the rotating shaft 20 The core 30 and the mantle 31, the upper frame 40 seated on the upper portion of the main frame 10, the cone screwed to the upper frame 40 and spaced apart from the mantle 31 by a proper distance In the cone crusher comprising a cave 50 and a drive means 60 for rotating the rotary shaft 20, The piston 21 is fixed coaxially to the upper side of the rotary shaft 20, the cylinder 22 is installed coaxially to the outside of the piston 21, the fluid supplied to the interior of the cylinder 22 By the ascending and descending of the piston 21, the mantle 31 fixed to the rotary shaft 20 is moved up and down to adjust the distance between the concave 50 and the mantle 31 of the cone crusher Clearance adjustment device. According to claim 1, wherein the support 42 of the upper frame 40, the eccentric state of the rotating shaft 20 and the cylinder 22 is maintained, receives an eccentric load to be crushed, and A spherical bearing (26) and spherical bearing (27) that can withstand the vertical load load is installed, the interval adjusting device of the cone crusher. The oil tank (80) and the oil pump (81) for the oil of the spherical bearing (26) and the spherical bearing (27) to the inside of the support 42 of the upper frame (40) Cone crusher spacing device characterized in that to circulate.

Images