Crushing cavity anti-blocking device of cone crusher

Abstract

The utility model relates to the technical field of cone crushers, and discloses an anti-blocking device for a crushing cavity of a cone crusher, which comprises a bottom plate and three limiting blocks mounted on the lower surface of a support frame, a connecting plate is arranged between every two adjacent limiting blocks, a scattering block is mounted on the upper surface of each connecting plate, and the scattering blocks are positioned in a feed opening. When the rotating shaft rotates, the gear fixedly connected to the rotating shaft rotates synchronously, the rotating motion of the gear forces the connecting plate to do axial circular motion with the rotating shaft as the center, and the scattering blocks fixed to the connecting plate continuously rotate along the annular track in the discharging opening; centrifugal force generated by circular motion throws jamming stones to a flowing area of a discharging port in the tangential direction, meanwhile, instantaneous gaps formed after scattering blocks are moved away enable upper-layer materials to naturally fill a falling channel under the action of gravity, and in the process, through a closed-loop action chain of shear damage, centrifugal dredging and gravity flow recovery, the falling channel is filled with the upper-layer materials; the blocking risk is converted into a continuous discharging state, and the anti-blocking purpose is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of cone crushers, in particular to an anti-blocking device for the crushing cavity of a cone crusher. Background Technique

[0002] A cone crusher is a crushing device widely used in many fields such as mines, smelting, building materials, highways, railways, water conservancy, and chemical industries. It is mainly used for medium crushing and fine crushing of various ores and rocks. The existing cone crusher mainly consists of a machine body, a moving cone, a fixed cone, a main shaft, and a counterweight block assembly. A support frame is arranged inside the machine body. The main shaft is rotatably connected to the upper surface of the support frame. The moving cone and the counterweight are installed on the outer surface of the main shaft, and the fixed cone is installed on the inner surface of the machine body.

[0003] During the working process of the existing cone crusher, stones are continuously fed into the machine body through the feed hopper. At this time, the driving mechanism drives the main shaft to rotate, driving the moving cone to perform a swinging motion relative to the fixed cone, and falling between the fixed cone and the moving cone, so that the stones are squeezed and broken. The crushed materials should be discharged through the discharge opening of the support frame at the bottom of the crushing cavity under the action of gravity. However, when the input amount of stones is too large or the size distribution of the crushed materials is not ideal, instantaneous accumulation is likely to occur at the discharge opening of the support frame. If the falling speed of the materials is lower than the continuous supply rate of the upper materials, the accumulated materials will quickly increase and block each other, and finally form a blockage, which not only interrupts the normal discharging process, but may even cause the equipment to stop running seriously. Content of the Utility Model

[0004] The purpose of the utility model is to provide an anti-blocking device for the crushing cavity of a cone crusher to solve the problem that when the input amount of stones is too large or the size distribution of the crushed materials is not ideal, instantaneous accumulation is likely to occur at the discharge opening of the support frame. If the falling speed of the materials is lower than the continuous supply rate of the upper materials, the accumulated materials will quickly increase and block each other, and finally form a blockage.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is an anti-blocking device for the crushing cavity of a cone crusher, including a bottom plate. The bottom plate is located inside the machine body. Three limit blocks are arranged on the upper surface of the bottom plate. All three limit blocks are installed on the lower surface of the support frame. A connecting plate is arranged between every two adjacent limit blocks. A dispersing block is installed on the upper surface of the connecting plate. The dispersing block is located inside the discharge opening.

[0007] Furthermore, a rotating shaft is arranged in the middle of the bottom plate. One end of the rotating shaft is rotatably connected to the lower surface of the support frame. A gear is installed on the outer surface of the rotating shaft. The gear is meshed with one end of the connecting plate.

[0008] Furthermore, two chutes are provided on the upper surface of each of the limiting blocks. Springs are installed on the inner surfaces of the two chutes, and the other ends of the springs are installed with shielding plates. One end of the shielding plate abuts against the outer surface of the connecting plate, and the other end of the shielding plate is located inside the chute and moves along the axis direction of the chute.

[0009] Furthermore, the other end of the rotating shaft is installed with a first bevel gear. A connecting shaft is arranged on one side of the first bevel gear. One end of the connecting shaft is installed with a second bevel gear. The other end of the connecting shaft penetrates through the machine body and extends outward. The first bevel gear is meshed and connected with the second bevel gear.

[0010] Furthermore, a protective shell is installed on the lower surface of the bottom plate. The first bevel gear and the second bevel gear are both located inside the protective shell.

[0011] Furthermore, a conical surface is provided on the upper surface of the dispersing block.

[0012] The utility model has the following beneficial effects:

[0013] (1) When the rotating shaft of the utility model rotates, the gear fixed to the rotating shaft rotates synchronously. The rotational movement of the gear forces the connecting plate to perform an axial circular motion centered on the rotating shaft. The dispersing block fixed on the connecting plate continuously rotates along an annular track in the feeding port. The centrifugal force generated by the circular motion throws the blocked stones along the tangent direction into the flowing area of the feeding port. At the same time, the instantaneous gap formed after the dispersing block moves away allows the upper-layer material to naturally fill the falling channel under the action of gravity. Through this closed-loop action chain of shear destruction, centrifugal guidance, and gravity flow restoration, the risk of blockage is transformed into a continuous discharging state, achieving the purpose of anti-blockage.

[0014] (2) When the connecting plate of the utility model performs a circular motion, the outer edge of it pushes the shielding plate to slide into the chute, forcing the spring to contract and store energy. The shielding plate dynamically expands and contracts along with the trajectory of the connecting plate, continuously closing the exposed gap in the gear area and physically blocking the intrusion of stones.

[0015] Of course, it is not necessary for any product implementing the utility model to simultaneously achieve all the above-mentioned advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Structural section of the existing cone crusher Figure 1;

[0018] Figure 2 is the structural section of the existing cone crusher Figure 2 ;

[0019] Figure 3 is the overall structure of the present invention and the section of the cone crusher Figure 1 ;

[0020] Figure 4 is the overall structure of the present invention and the section of the cone crusher Figure 2 ;

[0021] Figure 5 is the schematic diagram of the partial structure of the present invention;

[0022] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0023] In the figure: 1, bottom plate; 2, limit block; 201, chute; 3, connecting plate; 4, dispersing block; 401, conical surface; 5, rotating shaft; 6, gear; 7, spring; 8, shielding plate; 9, first bevel gear; 10, connecting shaft; 11, second bevel gear; 12, protective shell; 13, machine body; 1301, support frame; 1302, feeding port; 14, moving cone; 15, fixed cone; 16, main shaft; 17, counterweight block. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5 As shown, the present invention is an anti-blocking device for the crushing cavity of a cone crusher, including a bottom plate 1. The bottom plate 1 is located inside the machine body 13. Three limit blocks 2 are arranged on the upper surface of the bottom plate 1. The three limit blocks 2 are all installed on the lower surface of the support frame 1301. A connecting plate 3 is arranged between every two adjacent limit blocks 2. A dispersing block 4 is installed on the upper surface of the connecting plate 3. The dispersing block 4 is located inside the feeding port 1302;

[0026] A rotating shaft 5 is arranged in the middle of the bottom plate 1. One end of the rotating shaft 5 is rotatably connected to the lower surface of the support frame 1301. A gear 6 is installed on the outer surface of the rotating shaft 5. The gear 6 is meshed with one end of the connecting plate 3;

[0027] When the rotating shaft 5 rotates, the gear 6 fixedly connected to the rotating shaft 5 rotates synchronously. The rotational movement of the gear 6 forces the connecting plate 3 to perform an axial circular motion centered on the rotating shaft 5. The dispersing block 4 fixed on the connecting plate 3 continuously rotates along an annular track within the discharge port 1302. The centrifugal force generated by the circular motion throws the blocked stones along the tangent direction into the flow area of the discharge port 1302. At the same time, the instantaneous gap formed after the dispersing block 4 moves away allows the upper-layer materials to naturally fill the falling channel under the action of gravity. Through this closed-loop action chain of shear failure, centrifugal guidance, and gravity flow restoration, the risk of blockage is transformed into a continuous discharging state, achieving the purpose of anti-blockage;

[0028] On the upper surface of each limiting block 2, two sliding grooves 201 are provided. Springs 7 are installed on the inner surfaces of the two sliding grooves 201. The other ends of the springs 7 are installed with shielding plates 8. One end of the shielding plate 8 abuts against the outer surface of the connecting plate 3, and the other end of the shielding plate 8 is located inside the sliding groove 201 and moves along the axis direction of the sliding groove 201;

[0029] When the connecting plate 3 performs a circular motion, its outer edge pushes the shielding plate 8 to slide into the sliding groove 201, forcing the spring 7 to contract and store energy. The shielding plate 8 dynamically expands and contracts along with the trajectory of the connecting plate 3, continuously closing the exposed gap in the gear 6 area and physically blocking the intrusion of stones;

[0030] The other end of the rotating shaft 5 is installed with a first bevel gear 9. A connecting shaft 10 is provided on one side of the first bevel gear 9. One end of the connecting shaft 10 is installed with a second bevel gear 11. The other end of the connecting shaft 10 penetrates through the machine body 13 and extends outward. The first bevel gear 9 is meshed with the second bevel gear 11;

[0031] The lower surface of the bottom plate 1 is installed with a protective shell 12. Both the first bevel gear 9 and the second bevel gear 11 are located inside the protective shell 12;

[0032] The protective shell 12 is fixedly connected below the bottom plate 1, completely covering the meshing area of the first bevel gear 9 and the second bevel gear 11, forming a rigid isolation barrier to isolate the intrusion of the dust and debris scattered in the crushing cavity from the outside, preventing the tooth surface from failing due to abrasive wear;

[0033] The upper surface of the dispersing block 4 is provided with a conical surface 401;

[0034] Through the conical surface 401 of the dispersing block 4, when it contacts the accumulated stones during circular motion, its inclined surface structure first decomposes the vertical falling impact force into a horizontal shear force, forcibly wedges into the occluding gap of the stones to disintegrate the bridging structure. At the same time, the inclined surface guides the separated stones to slide along the inclined surface to the unobstructed area of the discharge port 1302, avoiding secondary blockage.

[0035] When in use, firstly, the connecting shaft 10 is installed with the external driving device, and the stone is continuously fed into the body 13 through the feed hopper. At this time, the driving mechanism drives the main shaft 16 and the counterweight block 17 to rotate, driving the movable cone 14 to make a swinging motion relative to the fixed cone 15, and the movable cone 14 falls between the fixed cone 15 and the movable cone 14, so that the stone is squeezed and crushed. The crushed material is discharged through the discharge port 1302 of the support frame 1301 at the bottom of the crushing chamber under the action of gravity;

[0036] When stones accumulate at the discharge port 1302, the external driving device is started to make the connecting shaft 10 drive the second bevel gear 11 to rotate, and the second bevel gear 11 drives the first bevel gear 9 and the rotating shaft 5 to rotate. When the rotating shaft 5 rotates, the gear 6 fixed to the rotating shaft 5 rotates synchronously. The rotational movement of the gear 6 forces the connecting plate 3 to perform axial circular motion around the rotating shaft 5. The shattering block 4 fixed on the connecting plate 3 then continuously rotates along a circular trajectory in the discharge port 1302. The centrifugal force generated by the circular motion throws the blocked stones along the tangential direction to the flow area of the discharge port 1302. At the same time, the instantaneous gap formed after the shattering block 4 is removed allows the upper material to naturally fill the falling channel under the action of gravity. This process Through the closed-loop action chain of shear destruction, centrifugal drainage and gravity flow recovery, the blockage risk is converted into a continuous discharge state to achieve the purpose of anti-blockage. When the breaker block 4 comes into contact with the accumulated stones in a circular motion, its inclined structure first decomposes the vertical falling impact force into a horizontal shear force, forcibly wedges into the stone bite gap to disintegrate the bridging structure, and at the same time, the inclined surface guides the separated stones to slide along the inclined surface to the unobstructed area of the discharge port 1302 to avoid secondary jamming. When the connecting plate 3 performs a circular motion, its outer edge pushes the baffle plate 8 to slide into the inside of the slide groove 201, forcing the spring 7 to shrink and store energy. The baffle plate 8 dynamically expands and contracts along the trajectory of the connecting plate 3, continuously closing the exposed gap in the gear 6 area, and physically blocking the intrusion of stones.

[0037] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cone crusher crushing cavity anti-blocking device, comprising a bottom plate (1), characterized in that: The bottom plate (1) is located inside the machine body (13). Three limit blocks (2) are arranged on the upper surface of the bottom plate (1), and the three limit blocks (2) are all installed on the lower surface of the support frame (1301). A connecting plate (3) is arranged between every two adjacent limit blocks (2). A dispersing block (4) is installed on the upper surface of the connecting plate (3), and the dispersing block (4) is located inside the material discharging port (1302).

2. The anti-blocking device for the crushing cavity of a cone crusher according to claim 1, characterized in that: A rotating shaft (5) is arranged in the middle of the bottom plate (1). One end of the rotating shaft (5) is rotatably connected to the lower surface of the support frame (1301). A gear (6) is installed on the outer surface of the rotating shaft (5), and the gear (6) is meshed with one end of the connecting plate (3).

3. The anti-blocking device for the crushing cavity of a cone crusher according to claim 1, characterized in that: Two sliding grooves (201) are formed on the upper surface of each limit block (2). Springs (7) are installed on the inner surfaces of the two sliding grooves (201). The other ends of the springs (7) are installed with shielding plates (8). One end of the shielding plate (8) abuts against the outer surface of the connecting plate (3), and the other end of the shielding plate (8) is located inside the sliding groove (201) and moves along the axis direction of the sliding groove (201).

4. The anti-blocking device for the crushing cavity of a cone crusher according to claim 2, characterized in that: A first bevel gear (9) is installed at the other end of the rotating shaft (5). A connecting shaft (10) is arranged on one side of the first bevel gear (9). A second bevel gear (11) is installed at one end of the connecting shaft (10). The other end of the connecting shaft (10) penetrates through the machine body (13) and extends outward. The first bevel gear (9) is meshed with the second bevel gear (11).

5. The anti-blocking device for the crushing cavity of a cone crusher according to claim 4, characterized in that: A protective shell (12) is installed on the lower surface of the bottom plate (1). The first bevel gear (9) and the second bevel gear (11) are both located inside the protective shell (12).

6. The anti-blocking device for the crushing cavity of a cone crusher according to claim 1, characterized in that: A conical surface (401) is arranged on the upper surface of the dispersing block (4).

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