Ore crushing equipment

Abstract

The utility model discloses ore crushing equipment which comprises a jaw crusher, a screening assembly is arranged on the jaw crusher and located below an ore discharge port, and the screening assembly comprises an obliquely-arranged ore slide way and a driving mechanism for driving the ore slide way to reciprocate left and right. The upper end of the ore slide way is in butt joint with the ore discharging port, the lower end of the ore slide way is in butt joint with the coarse material collecting hopper, the ore slide way is divided into an arc-shaped guide section at the upper end and a screen section at the lower end, and a plurality of screen holes are formed in the screen section. The arc-shaped guide section is additionally arranged in front of the screen section of the ore slide way, so that fallen ore firstly contacts with the arc-shaped guide section and then slides onto the screen section, the phenomenon that the screen is deformed or damaged due to the fact that the ore directly impacts the screen can be effectively avoided, and meanwhile in the ore sliding process, the ore cannot fall off easily. The ore slideway is driven by the driving mechanism to reciprocate left and right, so that the screening efficiency of ores in the screen section can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ore crushing, in particular to an ore crushing device. Background Art

[0002] An ore crusher is a piece of machinery used to crush ore. Common ore crushers include jaw crushers, impact crushers, hammer crushers, and cone crushers. A traditional jaw crusher places ore into a crushing chamber, where it is crushed by the reciprocating motion of the swinging jaw. Its working principle is that an electric motor drives a belt and pulley, which, through an eccentric shaft, causes the swinging jaw to reciprocate back and forth, up and down, pushing the swinging jaw toward the fixed jaw. When the swinging jaw retreats under the force of the eccentric shaft spring, the previously crushed material is discharged from the lower discharge port of the jaw, completing the crushing cycle.

[0003] It is difficult for a jaw crusher to ensure uniform ore crushing when crushing ore. When the swing jaw plate moves to the side away from the fixed jaw plate, the distance between the swing jaw plate and the fixed jaw plate becomes larger. At this time, small pieces of ore will fall directly downward due to gravity, resulting in inconsistent size of the ore after being crushed by the jaw crusher. It is necessary to collect and screen the crushed ore, and screen the incompletely crushed fragments for secondary crushing. However, the ore currently coming out of the ore outlet of the jaw crusher falls directly onto the screen for screening. The screen is easily deformed or worn under the impact of the falling ore, so the screen needs to be replaced frequently. Summary of the Invention

[0004] The main purpose of the utility model is to provide an ore crushing device, aiming to effectively solve one of the technical problems existing in the background technology.

[0005] To this end, the ore crushing equipment provided by the utility model includes a jaw crusher, and a screening assembly is provided on the jaw crusher below the ore discharge port. The screening assembly includes an inclined ore chute and a driving mechanism for driving the ore chute to reciprocate left and right. The upper end of the ore chute is connected to the ore discharge port, and the lower end is connected to the coarse material collection bucket. The ore chute is divided into an arc-shaped guide section at the upper end and a screen section at the lower end, and the screen section is provided with multiple sieve holes.

[0006] Specifically, the ore chute is composed of a bottom plate and side baffles located on both sides of the bottom plate, and the bottom plate is composed of a screen and an arc-shaped guide plate fixedly connected to the upper end of the screen.

[0007] Specifically, a fine material collecting hopper is provided on the jaw crusher just below the screen.

[0008] Specifically, the driving mechanism is a crank slider mechanism.

[0009] Specifically, the crank slider mechanism includes a crank, a connecting rod and a slider. A driving motor for driving the crank to rotate is provided on the frame of the jaw crusher. Sliding slots extending left and right are provided on both sides of the ore chute on the frame. A slider is slidably installed in each of the sliding slots. One end of the connecting rod is hinged to one of the sliders, and the other end is eccentrically hinged to the crank. Both sides of the ore chute are fixedly connected to the corresponding sliders.

[0010] Compared with the prior art, the present invention has at least the following beneficial effects: by adding an arc-shaped guide section in front of the screen section of the ore chute, the falling ore first contacts the arc-shaped guide section and then slides onto the screen section, thereby effectively avoiding the ore directly impacting the screen and causing deformation or damage to the screen. At the same time, during the ore sliding process, the ore chute is driven to move back and forth left and right by the driving mechanism, which can improve the screening efficiency of the ore in the screen section. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 This is a schematic diagram of the structure of the ore crushing equipment provided by the embodiment of the utility model;

[0013] Figure 2 yes Figure 1 Cross-sectional view in the AA direction;

[0014] Among them: 1. Jaw crusher; 2. Frame; 3. Ore discharge port; 4. Ore chute; 401. Bottom plate; 4011. Screen; 4012. Arc guide plate; 402. Side baffle; 5. Driving mechanism; 501. Crank; 502. Connecting rod; 503. Sliding block; 504. Sliding slot; 6. Coarse material collecting hopper; 7. Sieve hole; 8. Fine material collecting hopper. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0017] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0018] See also Figure 1 and Figure 2 , an ore crushing equipment, including a jaw crusher 1, the jaw crusher 1 is installed on the ground through a frame 2, and a screening assembly is provided on the frame 2 of the jaw crusher 1 below the ore discharge port 3. The screening assembly includes an ore chute 4 arranged obliquely downward and a driving mechanism 5 that drives the ore chute 4 to reciprocate left and right. The upper end of the ore chute 4 is the high end, and the lower end is the low end. The upper end of the ore chute 4 is connected to the ore discharge port 3, and the lower end is connected to the coarse material collecting bucket 6. The ore crushed by the jaw crusher 1 falls from the ore discharge port 3 into the ore chute 4. The ore chute 4 is divided into an arc-shaped guide section at the upper end and a screen section at the lower end. The screen section is provided with multiple sieve holes 7. In order to facilitate the collection of the screened ore, a fine material collecting bucket 8 is provided on the jaw crusher 1 just below the screen section.

[0019] The working process of the above-mentioned ore crushing equipment is: the ore is placed in the crushing chamber of the jaw crusher 1, and then the ore is crushed by the reciprocating motion of the swinging jaw plate. The ore crushed by the jaw crusher 1 enters the ore chute 4 of the screening component and flows downward along the ore chute 4. Because the ore chute 4 is composed of an arc-shaped guide section at the upper end and a screen section at the lower end, and a plurality of sieve holes 7 are provided on the screen section, after the ore slides onto the screen section under the guidance of the arc-shaped guide section, the ore smaller than the sieve hole 7 falls from the screening section and is collected by the fine material collection bucket 8. The ore larger than the sieve hole 7 flows out from the lower end of the ore chute 4 and enters the coarse material collection bucket 6, thereby realizing the screening of the ore. As for the specific structure of the jaw crusher 1, they are all existing technologies and will not be repeated here.

[0020] In this embodiment, an arc-shaped guide section is added in front of the screen section of the ore chute 4. The arc-shaped guide section is made of rigid wear-resistant material, so that the falling ore first contacts the arc-shaped guide section and then slides onto the screen section, thereby effectively avoiding the ore directly impacting the screen 4011 and causing the screen 4011 to be deformed or damaged. At the same time, during the ore sliding process, the ore chute 4 is driven by the driving mechanism 5 to swing left and right, which can improve the screening efficiency of the screen section.

[0021] See also Figure 1 and Figure 2 It can be understood that in the actual design, the ore chute 4 is composed of a bottom plate 401 and side baffles 402 located on both sides of the bottom plate 401. By setting the side baffles 402, the ore can be prevented from sliding out from the sliding side. The bottom plate 401 is composed of a screen 4011 and an arc-shaped guide plate 4012 fixedly connected to the upper end of the screen 4011. The ore falling from the jaw crusher 1 first falls onto the arc-shaped guide plate 4012, and then slides to the screen 4011 through the arc-shaped guide plate 4012. The falling ore directly impacts the rigid arc-shaped guide plate 4012 instead of acting on the screen 4011. Therefore, the impact damage of the ore on the screen 4011 can be reduced. In order to effectively ensure the smoothness of the ore movement, the screen 4011 and the arc-shaped guide plate 4012 maintain a smooth connection.

[0022] See also Figure 2 The driving mechanism 5 can adopt a crank slider mechanism, which includes a crank 501, a connecting rod 502 and a slider 503. A driving motor for driving the crank 501 to rotate is provided on the frame 2 of the jaw crusher 1. Sliding slots 504 extending left and right are provided on both sides of the ore chute 4 on the frame 2. A slider 503 is slidably installed in each sliding slot 504. The two sides of the ore chute 4 are respectively fixedly connected to the corresponding sliders 503. One end of the connecting rod 502 is hinged to one of the sliders 503, and the other end is eccentrically hinged to the crank 501. The shape of the sliding slot can be T-shaped or other shapes.

[0023] When the driving mechanism 5 of the above structure is working, the driving motor drives the crank 501 to rotate, and the crank 501 drives the slider 503 to slide back and forth in the sliding slot 504 through the connecting rod 502, thereby driving the ore slide 4 to swing back and forth to achieve efficient screening of the ore.

[0024] Unless otherwise stated, for any technical solution disclosed in the above utility model, if a numerical range is disclosed, the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely a numerical range that is representative or has a more significant technical effect among many feasible numerical values. Due to the large number of numerical values, it is impossible to enumerate them exhaustively. Therefore, the utility model discloses only some numerical values ​​to illustrate the technical solution of the present invention. Moreover, the numerical values ​​listed above should not be construed as limiting the scope of protection of the invention.

[0025] At the same time, if the above-mentioned utility model discloses or involves components or structural parts that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, using bolts or screws to connect), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by a casting process) (except where it is obviously impossible to use an integrated forming process).

[0026] In addition, unless otherwise stated, terms used in any of the technical solutions disclosed in the present invention to express positional relationships or shapes include states or shapes that are similar, analogous, or close thereto. Any component provided by the present invention may be assembled from multiple separate components or may be a single component manufactured using an integral molding process.

[0027] The above embodiments are merely examples to clearly illustrate the present invention and are not intended to limit its implementation. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary or possible to provide an exhaustive list of all embodiments. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. An ore crushing device, comprising a jaw crusher (1), wherein a screening assembly is provided below an ore discharge port (3) on the jaw crusher (1), characterized in that The screening assembly comprises an inclined ore chute (4) and a driving mechanism (5) for driving the ore chute (4) to reciprocate left and right. The upper end of the ore chute (4) is connected to the ore discharge port (3), and the lower end is connected to the coarse material collection hopper (6). The ore chute (4) is divided into an arc-shaped guide section at the upper end and a screen section at the lower end. The screen section is provided with a plurality of screen holes (7).

2. The ore crushing equipment according to claim 1, characterized in that The ore chute (4) is composed of a bottom plate (401) and side baffles (402) located on both sides of the bottom plate (401); the bottom plate (401) is composed of a screen (4011) and an arc-shaped guide plate (4012) fixedly connected to the upper end of the screen (4011).

3. The ore crushing equipment according to claim 2, characterized in that A fine material collecting hopper (8) is provided on the jaw crusher (1) directly below the screen (4011).

4. The ore crushing equipment according to any one of claims 1 to 3, characterized in that : The driving mechanism (5) is a crank slider mechanism.

5. The ore crushing equipment according to claim 4, characterized in that The crank slider mechanism comprises a crank (501), a connecting rod (502) and a slider (503); a driving motor for driving the crank (501) to rotate is provided on the frame (2) of the jaw crusher (1); sliding slots (504) extending left and right are provided on both sides of the ore chute (4) on the frame (2); a slider (503) is slidably mounted in each of the sliding slots (504); one end of the connecting rod (502) is hinged to one of the sliders (503), and the other end is eccentrically hinged to the crank (501); and both sides of the ore chute (4) are fixedly connected to the corresponding sliders (503).

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