CN111266148A - Sealing structure of cone crusher and cone crusher - Google Patents

Abstract

The invention discloses a sealing structure of a cone crusher and the cone crusher with the sealing structure, which comprises a casing, a movable cone arranged in the casing, an annular cover body covering a balance ring of the cone crusher and an annular body sleeved outside the annular cover body, wherein the annular cover body is provided with a sealing surface; a sealing ring is arranged between the annular cover body and the casing, the upper end of the annular cover body extends into the movable cone, and the movable cone is provided with an avoiding groove for avoiding the annular cover body; the side wall of the avoiding groove is provided with an annular groove with an opening facing the annular cover body; the lower surface of the annular body is a spherical surface, the annular body is in clearance fit with the annular groove, and the inner surface of the annular body abuts against the outer surface of the annular cover body. The invention can avoid the technical problem of sealing structure damage caused by spherical shell tile abrasion on one hand, and can reduce maintenance time and save operation cost on the other hand because glue bonding is not needed.

Description

Sealing structure of cone crusher and cone crusher

technical field

The invention belongs to the technical field of ore crushing machinery and equipment, and particularly relates to a sealing structure of a cone crusher and a cone crusher having the sealing structure of the cone crusher.

Background technique

Fig. 1 shows the sealing structure of the cone crusher in the prior art. The upper end surface of the balance ring 7 has a U-shaped annular structure in cross section, and the lower end surface of the balance ring 7 has an inverted "mountain" shape in cross section. Ring structure, the lower surface of the moving cone 5 is provided with a ring groove, a T-shaped sealing ring c is bonded in the ring groove, and the vertical arm of the T-shaped sealing ring c extends into the ring structure on the upper end surface of the balance ring 7, and the casing 1 The L-shaped sealing ring b and the U-shaped sealing ring a are respectively bonded to the upper surface, wherein the two arms of the U-shaped sealing ring a extend into the annular structure of the lower end surface of the balance ring 7, and the upper surface of the L-shaped sealing ring b against the lower surface of the moving cone 5 . The sealing structure of the cone crusher in the prior art has the following disadvantages:

1. If the spherical shell 6 is worn and not replaced in time, the moving cone will move down, and the center of the moving cone's swing will be offset, resulting in an increase in the extrusion amount of the L-shaped sealing ring b, resulting in the acceleration of the L-shaped sealing ring Wear and damage; at the same time, the T-shaped sealing ring is likely to be in contact with the side wall of the annular structure on the upper end face of the balance ring 7, resulting in abnormal wear and damage of the T-shaped sealing ring; and then lead to the failure of the sealing function of the sealing structure of the cone crusher;

2. At present, U-shaped sealing ring a, L-shaped sealing ring b and T-shaped sealing ring c need to be replaced after about 1-2 months of use, while U-shaped sealing ring a, L-shaped sealing ring b and T-shaped sealing ring c The bonding requirements of the u Increase operating costs.

SUMMARY OF THE INVENTION

In order to solve the technical problem that the sealing structure of the cone crusher fails due to the long time of replacing the sealing ring and the wear of the spherical shell in the prior art, the purpose of the present invention is to provide a sealing structure of the cone crusher, the lower surface of the annular body is a spherical surface , and the annular body and the annular groove are gap-fitted, under the action of the annular body's own gravity, the lower surface of the annular body is always close to the upper surface of the lower side wall of the annular groove to prevent dust from entering through the joint surface of the annular body and the annular groove. In the annular body, and when the moving cone swings, the annular body moves relative to the annular groove, so that the inner surface of the annular body is always in close contact with the outer surface of the annular cover body, so as to prevent foreign objects such as dust from entering the annular cover body and achieve a sealed seal. Purpose. On the one hand, the annular body is sleeved on the outside of the annular cover, so that the annular body can move up and down relative to the annular cover body, even if the spherical shell is worn and not replaced in time, the moving cone moves down, and the annular body moves down with the moving cone; and, The annular body has movement relative to the annular groove, and the change of the center of the pendulum of the moving cone will not sharply increase the wear of the annular body. The glue cures, which greatly reduces maintenance time, which in turn reduces downtime and saves costs.

A further object of the present invention is to provide a cone crusher with the aforementioned sealing structure of the cone crusher. Since the sealing structure of the present invention has the aforementioned advantages, the cone crusher with this sealing structure obviously also has the same advantages, It is not repeated here.

The technical scheme adopted in the present invention is:

The sealing structure of the cone crusher includes a casing and a moving cone arranged in the casing, and also includes an annular cover covering the balance ring of the cone crusher and an annular body sleeved outside the annular cover; A sealing ring is arranged between the annular cover and the casing, the upper end of the annular cover extends into the moving cone, and the moving cone is provided with an escape groove for avoiding the annular cover; The side wall of the escape groove is provided with an annular groove with an opening facing the annular cover body; the lower surface of the annular body is a spherical surface, the annular body and the annular groove are gap-fitted, and the inner surface of the annular body abuts against the annular body. against the outer surface of the annular cover.

The lower surface of the annular body is a spherical surface, and the annular body and the annular groove are gap-fitted. Under the action of the annular body's own gravity, the lower surface of the annular body is always in close contact with the upper surface of the lower side wall of the annular groove to prevent dust from passing through the annular groove. The joint surface of the body and the annular groove enters the annular body, and when the moving cone swings, the annular body moves relative to the annular groove, so that the inner surface of the annular body is always in close contact with the outer surface of the annular cover body, so as to avoid dust and other foreign objects Enter the annular cover to achieve the purpose of sealing.

As a further optional solution of the sealing structure of the cone crusher, the surface of the lower side wall of the annular groove facing the annular body is a spherical surface adapted to the lower surface of the annular body.

As a further optional solution of the sealing structure of the cone crusher, the lower side wall of the annular groove is detachably connected to the moving cone.

As a further optional solution of the sealing structure of the cone crusher, the lower end of the annular cover body is provided with a connecting flange protruding outward; the bottom end of the connecting flange is extended with a positioning ring; the casing A positioning hole matching with the outer circle of the positioning ring is opened.

As a further optional solution of the sealing structure of the cone crusher, the sealing ring is arranged between the positioning hole and the positioning ring.

As a further optional solution of the sealing structure of the cone crusher, a ring groove for accommodating the sealing ring is provided on the outer circular surface of the positioning ring.

As a further optional solution of the sealing structure of the cone crusher, the connecting flange is detachably connected to the casing.

A cone crusher, comprising the sealing structure of the cone crusher described in any one of the foregoing.

As a further optional solution of the cone crusher, the balance ring includes an annular connecting body and a counterweight body fixed on the upper end of the annular connecting body; the counterweight body is in the shape of a tile.

As a further optional solution of the cone crusher, the counterweight body and the annular connecting body are arranged coaxially.

The beneficial effects of the present invention are:

The lower surface of the annular body is a spherical surface, and the annular body and the annular groove are gap-fitted. Under the action of the annular body's own gravity, the lower surface of the annular body is always in close contact with the upper surface of the lower side wall of the annular groove to prevent dust from passing through the annular groove. The joint surface of the body and the annular groove enters the annular body, and when the moving cone swings, the annular body moves relative to the annular groove, so that the inner surface of the annular body is always in close contact with the outer surface of the annular cover body, so as to avoid dust and other foreign objects Enter the annular cover to achieve the purpose of sealing. On the one hand, the annular body is sleeved on the outside of the annular cover, so that the annular body can move up and down relative to the annular cover body, even if the spherical shell is worn and not replaced in time, the moving cone moves down, and the annular body moves down with the moving cone; and, The annular body has a movement relative to the annular groove, and the change of the center of the pendulum of the moving cone will not sharply increase the wear of the annular body; on the other hand, the annular body and the annular cover body of the present invention do not need to be bonded with glue, so no waiting The glue cures, which greatly reduces maintenance time, which in turn reduces downtime and saves costs.

Other beneficial effects of the present invention will be described in detail in the detailed description.

Description of drawings

In order to illustrate the technical solutions of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. It should be understood that the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the structural representation of the sealing structure of the cone crusher in the prior art cone crusher;

Fig. 2 is the structural representation of the sealing structure of the cone crusher of the present invention;

Fig. 3 is a schematic diagram of enlarged structure of A region in Fig. 2;

Fig. 4 is a schematic diagram of enlarged structure of B region in Fig. 2;

Figure 5 is a schematic structural diagram of the balance ring in the cone crusher of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention. It should be understood that the accompanying drawings are only provided for reference and illustration, and are not used to limit the present invention. The connection relationship shown in the drawings is only for the convenience of clear description, and does not limit the connection manner.

It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component, or there may be an intervening component at the same time. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

It should be noted that the “upper” and “lower” orientations mentioned in this article refer to the fact that, under the normal use state of the cone crusher of the present invention, the side close to the ground is down, and the side away from the ground is up, that is, the side is attached. The orientation in Figure 2.

It should be noted that the "inner" and "outer" orientations described herein mean that, under the normal use state of the cone crusher of the present invention, the side close to the axial central axis of the annular cover is inward, away from One side of the axial center axis of the annular cover body is outside.

The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

Example 1:

As shown in Figures 2 and 3, the sealing structure of the cone crusher in this embodiment includes a casing 1 and a moving cone 5 arranged in the casing 1, and also includes an annular ring covering outside the balance ring 7 of the cone crusher The cover body 2 and the annular body 3 sleeved outside the annular cover body 2; a sealing ring 9 is arranged between the annular cover body 2 and the casing 1, the upper end of the annular cover body 2 extends into the moving cone 5, and the moving cone 5 There is an avoidance groove 52 for avoiding the annular cover body 2; the side wall of the avoidance groove 52 is provided with an annular groove 51 whose opening faces the annular cover body 2; , the inner surface of the annular body 3 abuts against the outer surface of the annular cover body 2 .

It should be noted that, in this embodiment, the orientation and connection relationship between the moving cone 5 and the casing 1 and between the balance ring 7 and the casing 1 are the same as those in the prior art, and are well known in the art. Therefore, it is not repeated here.

As shown in FIG. 4 , there are gaps 8 between the upper surface of the annular body 3 and the upper side wall of the annular groove 51 and between the outer surface of the annular body 3 and the groove bottom of the annular groove 51 . During the swinging process, the annular body 3 can move freely in the annular groove 51. Since the lower surface of the annular body 3 is a spherical surface, under the action of the self-weight of the annular body 3, the lower surface of the annular body 3 is always in close contact with the annular groove. At the same time, the inner surface of the annular body 3 is in close contact with the outer surface of the annular cover body 2, and the upper end of the annular cover The upper part of the cover body 2 enters the annular cover body 2; as shown in Figures 2 and 3, a sealing ring 9 is provided between the annular cover body 2 and the casing 1, so foreign matter such as dust cannot enter the annular cover body 2 from the lower part. In the cover body 2, the sealing effect is achieved.

The sealing ring 9 can be arranged between the lower end face of the annular cover body 2 and the casing 1. Specifically, an annular groove can be opened on the lower end face of the annular casing body 2 or the casing, and then the sealing ring 9 can be placed in the annular groove. The sealing ring 9 can also be arranged between the outer peripheral wall of the lower part of the annular cover 2 and the casing 1, specifically, a vertical hole is opened on the casing 1, and the lower part of the annular cover 2 is placed in the In the hole, an accommodating groove for accommodating the sealing ring 9 can be opened on the outer peripheral wall of the lower part of the annular cover 2 or the hole wall of the hole, and then the sealing ring 9 is placed in the accommodating groove; it is obvious that in the present invention, the sealing ring 9 The setting method is not limited to the above-mentioned ways, as long as the sealing between the casing 1 and the annular cover 2 can be achieved, to prevent foreign matter such as dust from entering the annular cover 2 through the gap between the annular cover 2 and the casing 1 That's it.

Since the annular cover 2 does not limit the freedom of the annular body 3 in the vertical direction, after the spherical sleeve 6 is worn, even if the moving cone 5 moves down, the annular cover 2 will not impose additional vertical pressure on the annular body 3. At the same time, there is a gap 8 between the annular body 3 and the annular groove 51. Therefore, after the spherical shell 6 is worn, even if the swing center of the moving cone 5 changes, the dynamic The cone 5 also does not squeeze the annular body 3, resulting in a larger extrusion amount of the annular body 3; it can be seen that the wear of the spherical sleeve 6 will not cause damage to the sealing structure in the present invention.

Since the annular cover body 2 and the annular body 3 do not need to be bonded with glue, the maintenance time is reduced; meanwhile, compared with the prior art, the machining accuracy of the annular cover body 2 and the annular body 3 is lower.

In this embodiment, the annular body 3 is made of MC cast nylon, so as to improve the wear resistance and oil resistance of the annular body 3, and at the same time, the self-lubricating property is also good.

The cone crusher in this embodiment includes the aforementioned sealing structure. Since the present invention only improves the aforementioned sealing structure in the cone crusher, other structures of the cone crusher can adopt the specific structures in the prior art. It is not repeated here.

Example 2:

The difference between this embodiment and Embodiment 1 is that, as shown in FIG. 4 , in this embodiment, the surface of the lower side wall 4 of the annular groove 51 facing the annular body 3 is a spherical surface adapted to the lower surface of the annular body 3 , thereby increasing the The contact area between the lower surface of the large annular body 3 and the upper surface of the lower side wall 4 of the annular groove 51 improves the sealing performance.

Example 3:

The difference between this embodiment and Embodiment 1 or Embodiment 2 is that, as shown in FIGS. 2 and 4 , in this embodiment, the lower side wall of the annular groove 51 is detachably connected to the moving cone 5 , so that the annular 3, the lower side wall 4 can be removed first, so that the annular body 3 can remain in a free state during disassembly and assembly, so as to avoid excessive extrusion of the annular body 3, resulting in reduced performance or even damage of the annular body 3.

Example 4:

The difference between this embodiment and Embodiment 1 or Embodiment 2 or Embodiment 3 is that, as shown in FIGS. 2 and 3 , in this embodiment, the lower end of the annular cover body 2 is provided with a connecting flange protruding outward; Removably connected to the casing 1, a positioning ring 21 extends downward from the bottom end of the connecting flange; the casing 1 is provided with a positioning hole 11 that matches the outer circle of the positioning ring 21, so that the annular cover 2 can 1 to avoid interference of the annular cover 2 with other parts due to the uncertain position of the annular cover 2 during operation, and at the same time, it can also reduce the adjustment time when installing the annular cover 2 .

Example 5:

The difference between this embodiment and Embodiment 4 is that, as shown in FIGS. 2 and 3 , in this embodiment, the sealing ring 9 is arranged between the positioning hole 11 and the positioning ring 21 . If the sealing ring 9 is arranged on the annular cover body 2 If the groove for accommodating the sealing ring 9 is opened on the lower end surface of the annular cover body 2 between the lower end face of the casing 1 and the casing 1, the sealing ring 9 will easily fall off under the action of gravity during the installation process. The groove is opened on the casing 1. On the one hand, since the casing 1 is large, adding grooves will increase the difficulty of processing; on the other hand, if the sealing ring 9 is not installed in the groove, the installer may not be able to Noticed.

Example 6:

The difference between this embodiment and Embodiment 5 is that, as shown in FIGS. 2 and 3 , in this embodiment, a ring groove for accommodating the sealing ring 9 is formed on the outer surface of the positioning ring 21 . 1, on the one hand, it will increase the difficulty of processing; on the other hand, if the sealing ring 9 is not installed in the groove, the installer may not be able to notice it; If the outer surface of the annular cover body 2 is installed with interference fit, the annular cover body 2 can easily push the sealing ring 9 out of the annular groove.

Example 7:

The difference between this embodiment and any of the embodiments 1-6 is that, as shown in FIG. 5 , in this embodiment, the balance ring 7 includes an annular connecting body 72 and a weight body 71 fixed on the upper end of the annular connecting body 72 ; The heavy body 71 is tile-shaped. In this embodiment, the annular connecting body 72 is a revolving body, and the counterweight body 71 can also be made by simply cutting the revolving body. Under the condition of ensuring centrifugal force, the shape is simpler and can be completed only by turning and cutting. Compared with the balance ring in the prior art, which needs both welding and cutting, the manufacturing process greatly simplifies the process.

Example 8:

The difference between this embodiment and Embodiment 7 is that in this embodiment, the counterweight body 71 and the annular connecting body 72 are coaxially arranged, so that before the counterweight body 71 is cut out, the middle annular connecting body 71 and the fitting can be processed by one clamping. The revolving surface of the weight 71 and the end surface of one end simplify the processing technology and save the cost.

The present invention is not limited to the above-mentioned optional embodiments, and anyone can draw other various forms of products under the inspiration of the present invention, but no matter what changes are made in its shape or structure, all fall within the definition of the claims of the present invention. The technical solutions within the scope all fall within the protection scope of the present invention.

Claims (10)

1. The sealing structure of the cone crusher includes a casing and a moving cone arranged in the casing, and is characterized in that: it also includes an annular casing that is covered outside the balance ring of the cone crusher and a ring casing that is sleeved on the annular casing. an annular body outside the cover; a sealing ring is arranged between the annular cover body and the casing, the upper end of the annular cover body extends into the moving cone, and the moving cone is provided with an annular cover to avoid the The avoidance groove of the body; the sidewall of the escape groove is provided with an annular groove with an opening facing the annular cover body; the lower surface of the annular body is a spherical surface, the annular body and the annular groove are gap-fitted, the The inner surface of the annular body abuts the outer surface of the annular housing. 2 . The sealing structure of the cone crusher according to claim 1 , wherein the surface of the lower side wall of the annular groove facing the annular body is a spherical surface adapted to the lower surface of the annular body. 3 . 3 . The sealing structure of the cone crusher according to claim 1 , wherein the lower side wall of the annular groove is detachably connected to the moving cone. 4 . 4 . The sealing structure of the cone crusher according to claim 1 , wherein the lower end of the annular cover body is provided with a connecting flange protruding outwards; the bottom end of the connecting flange is provided with a positioning ring extending downward. 5 . ; The casing is provided with a positioning hole matched with the outer circle of the positioning ring. 5 . The sealing structure of the cone crusher according to claim 4 , wherein the sealing ring is arranged between the positioning hole and the positioning ring. 6 . 6 . The sealing structure of the cone crusher according to claim 5 , wherein the outer circular surface of the positioning ring is provided with a ring groove for accommodating the sealing ring. 7 . 7 . The sealing structure of the cone crusher according to claim 4 , wherein the connecting flange is detachably connected to the casing. 8 . 8. A cone crusher, characterized in that it comprises the sealing structure of the cone crusher according to any one of claims 1-7. 9 . The sealing structure of the cone crusher according to claim 8 , wherein the balance ring comprises an annular connecting body and a counterweight body fixed on the upper end of the annular connecting body; and the counterweight body is tile-shaped. 10 . 10 . The sealing structure of the cone crusher according to claim 9 , wherein the counterweight body and the annular connecting body are coaxially arranged. 11 .

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