Ore crushing mechanism

Abstract

The utility model discloses an ore crushing mechanism, and belongs to the technical field of mining machinery. Comprising a fixed plate, mounting arms and movable plates, the fixed plate is obliquely arranged, the movable plates are arranged on the front side of the fixed plate in parallel, the mounting arms are arranged on the front sides of the movable plates in parallel, a sliding rod is fixedly arranged on the front side of each movable plate, and after the sliding rods movably penetrate through the mounting arms, limiting blocks are arranged at the ends of the sliding rods; a pressure-bearing spring is arranged between the limiting block on the sliding rod and the mounting arm in a sleeving mode, a driving shaft is arranged on the front side of the mounting arm, a plurality of driving cams corresponding to the movable plate are arranged on the driving shaft in the length direction, and the driving cams make contact with the limiting block. According to the ore crushing device, ore can be crushed step by step so that finer crushing can be carried out finally, the crushing wheels are arranged to crush ore fragments finally, and the ore crushing uniformity is improved; and therefore, the ore can be crushed more sufficiently and uniformly, and the efficiency is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of mining machinery, in particular to an ore crushing mechanism. Background Art

[0002] Ore crusher is a mechanical device used to break ore from large pieces into small pieces. It is widely used in mining, smelting, etc. In the mining industry, ore crusher plays a vital role. It is used to initially crush the mined ore to provide raw materials for subsequent mineral processing and smelting.

[0003] Different types of ore crushers are suitable for different ore types and crushing requirements. For example, jaw crushers, cone crushers, hammer crushers, impact crushers, etc. are all common types of ore crushers. Among them, the jaw crusher is the earliest crusher. It uses two jaw plates, one fixed and the other movable, to clamp and crush. It is suitable for medium hardness ores. When choosing an ore crusher, it is necessary to make a comprehensive consideration based on factors such as the specific ore type, production requirements, and budget. At present, in the process of the two jaw plates approaching each other and working in principle, all ores can only undergo a maximum limited extrusion crushing. When the ore moves to the bottom of the jaw plate, the ultimate crushing is carried out. If the two jaw plates pass by when they are far away from each other, they cannot undergo the ultimate limit crushing, resulting in uneven crushing. Utility Model Content

[0004] The utility model aims to provide an ore crushing mechanism to solve the technical problem that part of the ores in the existing crusher cannot be crushed to the limit, resulting in uneven crushing of the ores.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A mineral crushing mechanism comprises a fixed plate 1, a mounting arm 2 and a movable plate 6, wherein the fixed plate 1 is arranged at an angle, the movable plate 6 is arranged parallel to the front side of the fixed plate 1, the mounting arm 2 is arranged parallel to the front side of the movable plate 6, there are several movable plates 6, a slide bar 5 is fixedly arranged on the front side of each movable plate 6, a limit block 8 is arranged on the end of the slide bar 5 after the slide bar 5 moves through the mounting arm 2, a pressure spring 7 is sleeved between the upper limit block 8 of the slide bar 5 and the mounting arm 2, a driving shaft 3 is arranged on the front side of the mounting arm 2, a plurality of driving cams 4 corresponding to the movable plate 6 are arranged on the driving shaft 3 along the length direction, and the driving cam 4 is in contact with the limit block 8.

[0007] It also includes a base 9, which includes a horizontal section and an inclined end, the inclined end is arranged on the rear side of the fixed plate 1, a crushing bin is provided on the horizontal section, the bottom end of the fixed plate 1 is located directly above the crushing bin, a plurality of crushing wheels 10 are provided in the crushing bin, and crushing teeth are provided on the crushing wheels 10.

[0008] A screw mechanism 11 is arranged on the inclined section of the base 9, and the screw mechanism 11 includes a screw 1101, a slider 1102 and a connecting arm 12. The screw 1101 is rotatably installed in the base 9 parallel to the movable plate 6, and the slider 1102 is threadedly arranged on the screw 1101. The slider 1102 is T-shaped, and the slider 1102 is slidably arranged in the T-shaped slide groove on the base 9. A blind groove 1103 is provided on the top surface of the slider 1102. The bottom end of the connecting arm 12 is slidably inserted into the blind groove 1103 and does not contact the bottom of the blind groove 1103. A web 13 is fixed on the connecting arm 12, and the bottom end surface of the web 13 is slidably matched with the notch end surface of the T-shaped slide groove of the base 9. The front ends of the connecting arm 12 and the web 13 are fixed on the rear side surface of the fixed plate 1.

[0009] The length of the sliding rod 5 gradually increases from top to bottom along the fixing plate 1 .

[0010] Every three adjacent driving cams 4 are arranged on the driving shaft 3 in a triangle shape.

[0011] The movable plate 6 and the fixed plate 1 are provided with crushing teeth on their opposite surfaces.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] The utility model is provided with two movable plates, one moving and one static, and adopts a plurality of driving cams arranged in different positions to push the corresponding movable plates to move, thereby forming a plurality of crushing mechanisms. When part of the ore moves on the front several movable plates, it just passes when this part of the movable plates is far away from the fixed plate, that is, it passes when the two are at a large distance, and cannot be crushed to the limit. Then, in the subsequent transportation, it is also very likely to be squeezed by the remaining movable plates when they move to the limit position close to the fixed plate, so that most of the ore can experience a limit squeeze, and the stability of the crushing degree is guaranteed as much as possible. Moreover, by setting different sliding rod lengths, the ore is crushed step by step, so that finer crushing can be carried out in the end, and a crushing wheel is provided to finally crush the ore fragments to improve the uniformity of ore crushing. In summary, the utility model can crush the ore more fully and evenly, and the efficiency is higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2for Figure 1 Enlarged view at K;

[0016] Figure 3 for Figure 2 A cross-sectional view at A-A;

[0017] Figure 4 It is a schematic structural diagram of the limit block, driving cam and driving shaft of the utility model;

[0018] In the figure: fixed plate 1; mounting arm 2; drive shaft 3; drive cam 4; slide rod 5; movable plate 6; pressure spring 7; limit block 8; base 9; crushing wheel 10; screw mechanism 11; screw 1101; slider 1102; blind groove 1103; connecting arm 12; web 13. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0022] Example 1

[0023] like Figure 1-4The present embodiment provides a ore crushing mechanism, comprising a fixed plate 1, a mounting arm 2 and a movable plate 6, wherein the movable plate 6 moves toward the fixed plate 1 to squeeze the ore passing through the movable plate 6 and the fixed plate 1 for crushing. The fixed plate 1 is tilted, the movable plate 6 is arranged parallel to the front side of the fixed plate 1, the mounting arm 2 is arranged parallel to the front side of the movable plate 6, there are several movable plates 6, a slide bar 5 is fixedly arranged on the front side of each movable plate 6, a limit block 8 is arranged on the end of the slide bar 5 after the slide bar 5 moves through the mounting arm 2, a pressure spring 7 is sleeved between the limit block 8 of the slide bar 5 and the mounting arm 2, a driving shaft 3 is arranged on the front side of the mounting arm 2, and a plurality of driving cams 4 corresponding to the movable plate 6 are arranged along the length direction on the driving shaft 3, and the driving cam 4 and the limit block 8 are in contact with each other. The pressure spring 7 makes the movable plate 6 away from the fixed plate 1 and in a set position, that is, under normal conditions, the pressure spring 7 makes the movable plate 6 close to or close to the mounting arm 2, so that it has enough stroke to move quickly, squeeze the ore and crush it fully.

[0024] It also includes a base 9, which includes a horizontal section and an inclined end, the inclined end is arranged on the rear side of the fixed plate 1, a crushing bin is provided on the horizontal section, the bottom end of the fixed plate 1 is located directly above the crushing bin, a plurality of crushing wheels 10 are provided in the crushing bin, and crushing teeth are provided on the crushing wheels 10.

[0025] The inclined section of the base 9 is provided with a screw mechanism 11, and the screw mechanism 11 includes a screw 1101, a slider 1102 and a connecting arm 12. The screw 1101 is rotatably mounted in the base 9 parallel to the movable plate 6, and the slider 1102 is threadedly arranged on the screw 1101. The slider 1102 is T-shaped, and the slider 1102 is slidably arranged in the T-shaped slide groove on the base 9. A blind groove 1103 is provided on the top surface of the slider 1102. The bottom end of the connecting arm 12 is inserted into the blind groove 1103 in a sliding fit and does not contact the bottom of the blind groove 1103. A web 13 is fixed on the connecting arm 12. The bottom end surface of the web 13 is slidably matched with the end surface of the notch of the T-shaped slide groove of the base 9, that is, the web 13 is located outside the notch, so that when crushing, the contact surface between the web 13 and the base 9 bears the force to prevent the screw 1101 from being crushed by the force from the slider 1102 to the connecting arm 12. The front ends of the connecting arm 12 and the web 13 are fixed on the rear side of the fixed plate 1. When the screw mechanism 11 moves, it can move back and forth in a straight line along the length direction of the fixed plate 1 connected thereto to continuously shake the ore to make it slide down.

[0026] The length of the slide bar 5 increases gradually from top to bottom along the fixed plate 1, so that the movable plate 6 gradually gets closer to the fixed plate 1 and is gradually crushed more fully.

[0027] Every three adjacent driving cams 4 are arranged in a herringbone shape on the driving shaft 3, so that when the driving shaft 3 rotates, when two of every three adjacent movable plates 6 are at the extreme position close to or away from the fixed plate 1, the third one is correspondingly at the extreme position away from or close to the fixed plate 1.

[0028] The ore crushing mechanism is arranged in a box with upper and lower openings, wherein a base 9 is fixed at the lower part of the box; a mounting arm 2 is fixedly installed in the box; an upper end of a drive shaft 3 is rotatably arranged in the box through a bearing, and a lower end of the drive shaft 3 is connected to an output shaft of a drive motor, and the drive motor is fixedly installed on the box.

Claims

1. A ore crushing mechanism, comprising a fixed plate (1), a mounting arm (2) and a movable plate (6), characterized in that: The fixed plate (1) is arranged obliquely, the movable plate (6) is arranged parallel to the front side of the fixed plate (1), the mounting arm (2) is arranged parallel to the front side of the movable plate (6), there are a plurality of movable plates (6), a sliding rod (5) is fixedly arranged on the front side of each movable plate (6), the sliding rod (5) is arranged with a limit block (8) on its end after the sliding rod (5) moves through the mounting arm (2), a pressure spring (7) is sleeved between the upper limit block (8) of the sliding rod (5) and the mounting arm (2), a driving shaft (3) is arranged on the front side of the mounting arm (2), a plurality of driving cams (4) corresponding to the movable plates (6) are arranged on the driving shaft (3) along the length direction, and the driving cam (4) and the limit block (8) are in contact with each other.

2. The ore crushing mechanism according to claim 1, characterized in that: The invention also comprises a base (9), wherein the base (9) comprises a horizontal section and an inclined end, wherein the inclined end is arranged at the rear side of the fixed plate (1), a crushing bin is arranged on the horizontal section, the bottom end of the fixed plate (1) is located directly above the crushing bin, a plurality of crushing wheels (10) are arranged in the crushing bin, and crushing teeth are arranged on the crushing wheels (10).

3. A ore crushing mechanism according to claim 2, characterized in that: A screw mechanism (11) is arranged on the inclined section of the base (9), and the screw mechanism (11) comprises a screw (1101), a slider (1102) and a connecting arm (12). The screw (1101) is rotatably mounted in the base (9) parallel to the movable plate (6), and the slider (1102) is threadedly mounted on the screw (1101). The slider (1102) is T-shaped and is slidably mounted in a T-shaped slide groove on the base (9). A blind groove (1103) is provided on the top surface of (1102), and the bottom end of the connecting arm (12) is inserted into the blind groove (1103) in a sliding manner and does not contact the bottom of the blind groove (1103). A web (13) is fixed on the connecting arm (12), and the bottom end surface of the web (13) is slidably matched with the groove end surface of the T-shaped slide groove of the base (9). The front ends of the connecting arm (12) and the web (13) are fixed on the rear side surface of the fixing plate (1).

4. The ore crushing mechanism according to claim 1, characterized in that: The length of the sliding rod (5) gradually increases from top to bottom along the fixing plate (1).

5. The ore crushing mechanism according to claim 1, characterized in that: Every three adjacent driving cams (4) are arranged in a herringbone shape on the driving shaft (3).

6. The ore crushing mechanism according to claim 1, characterized in that: Crushing teeth are provided on the surfaces of the movable plate (6) and the fixed plate (1) facing each other.

Images