Rock crusher

Abstract

The utility model provides a rock crusher, which belongs to the technical field of rock crushing and is provided with a crusher body, the top of the crusher body is fixedly provided with a feeding box, and the upper end of an inner cavity of the crusher body is symmetrically and rotatably connected with two stone crushing roll shafts. Two groups of buffer mechanisms are fixedly mounted at the upper end of the crusher body and are positioned above the stone crushing roller shaft; a feeding opening is formed in the top wall of the feeding box, a charging opening communicated with the interior of the crusher body is formed in the bottom wall of the feeding box, the feeding box is provided with a material distribution bin, a rotating shaft is rotationally connected into the material distribution bin, and four supporting blades are installed on the rotating shaft at equal intervals; a receding groove and a containing groove are formed in the right portion of the feeding box, a limiting rod is rotationally connected into the containing groove, and a tension spring and a bolt are arranged in the receding groove. The utility model solves the technical problem that if rocks directly fall onto the stone crushing wheel through the feed port and a large number of rocks fall, the rocks are accumulated on the stone crushing roller.

Description

Technical Field

[0001] The utility model belongs to the technical field of rock crushing, and in particular relates to a rock crusher. Background Art

[0002] Rock is a solid aggregate with a stable shape, composed of one or several minerals and natural glass. At present, rock processing usually uses rock crushers, whose main function is to crush the mined rocks to reduce the volume of rock raw materials to meet the needs of subsequent production processes;

[0003] The Chinese utility model patent application number: CN201821866040.4 (publication number: CN209205402U) discloses a mobile rock crusher, including a box body, a partition is provided in the middle and lower part of the box body to divide the box body into two independent chambers, the upper part of the partition is a stone crushing chamber, the lower part of the partition is a wheel installation chamber, the top of the stone crushing chamber is provided with a feed inlet, the lower side is provided with a discharge port, and a first stone crushing wheel and a second stone crushing wheel are arranged in parallel in the stone crushing chamber;

[0004] When the above patent is used, rocks will directly fall onto the crushing wheel through the feed port. If a large number of rocks fall, they will accumulate on the crushing roller. The accumulation will cause some rocks to be unable to be crushed, resulting in poor rock crushing effect. Utility Model Content

[0005] In view of this, the utility model provides a rock crusher for solving the technical problem that if rocks directly fall onto the stone crushing wheel through a feed port, if a large number of rocks fall, they will be piled up on the stone crushing roller.

[0006] The utility model is achieved in this way:

[0007] The utility model provides a rock crusher, comprising a crusher body, wherein a feed box is fixedly installed on the top of the crusher body, two stone crushing rollers are symmetrically rotatably connected to the inner cavity of the crusher body, and two groups of buffer mechanisms are fixedly installed on the upper end of the crusher body and above the stone crushing rollers;

[0008] The top wall of the feed box is provided with a feed port, the bottom wall of the feed box is provided with a feed port connected to the inside of the crusher body, a feed bin is provided in the feed box, a rotating shaft is rotatably connected in the feed bin, and four supporting blades are equidistantly installed on the rotating shaft;

[0009] The right part of the feed box is provided with a retreat groove and a receiving groove, a limiting rod is rotatably connected in the receiving groove, a limiting block extending to the left is fixedly installed at the bottom end of the limiting rod, the limiting block is in a horizontal structure and the top end abuts against the supporting blade;

[0010] A tension spring and a bolt are arranged in the retreat groove, and two ends of the tension spring are fixedly connected to the limiting rod and the bolt respectively.

[0011] On the basis of the above technical solution, the rock crusher of the utility model can also be improved as follows:

[0012] Furthermore, the two groups of buffer mechanisms are respectively arranged on two opposite inner side walls of the upper end of the crusher body, and the two groups of buffer mechanisms are staggered and spaced apart in the height direction.

[0013] Furthermore, the buffer mechanism includes a buffer plate and a rib plate fixedly mounted on the inner side wall of the crusher body, the buffer plate is arranged to be inclined downward along a horizontal plane, and the rib plate is fixedly connected to the buffer plate.

[0014] Furthermore, a drive motor is fixedly mounted on the rear wall of the crusher body, and an output shaft of the drive motor extends forward. The output shaft of the drive motor passes through the rear wall of the crusher body and is rotatably connected thereto, and the output shaft of the drive motor is fixedly connected to the stone crushing roller shaft.

[0015] Furthermore, a first sliding cavity penetrating the left and right side walls of the crusher body is provided in the crusher body below the stone crushing roller shaft, and a screen plate is slidably connected in the first sliding cavity.

[0016] Furthermore, a second sliding cavity penetrating the left and right side walls of the crusher body is provided in the crusher body below the screen plate, and a collecting box is slidably connected in the second sliding cavity.

[0017] Compared with the prior art, the rock crusher provided by the utility model has the following beneficial effects: by setting a buffer mechanism, the impact force of rocks falling onto the stone crushing roller is reduced, the service life of the stone crushing roller is improved, and the inclined buffer plate not only reduces the speed at which rocks fall, but also prevents rocks from forming accumulation on the buffer plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 The figure is a front view of the overall structure of a rock crusher;

[0020] Figure 2 A schematic diagram of the contraction of a limit block of a rock crusher;

[0021] Figure 3 A schematic diagram of resetting a limit block of a rock crusher;

[0022] Figure 4 A schematic diagram of a rock crushing roller shaft of a rock crusher;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Crusher body; 11. Driving motor; 12. Crushing roller shaft; 2. Feed box; 21. Feed port; 22. Feeding port; 23. Distribution bin; 24. Rotating shaft; 241. Support blade; 25. Retraction groove; 26. Accommodating groove; 27. Limit rod; 271. Limit block; 28. Tension spring; 29. ​​Bolt; 31. Buffer plate; 32. Rib plate; 4. Screen plate; 41. First slide cavity; 5. Collecting box; 51. Second slide cavity. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] 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.

[0027] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0028] 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" and the like 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined. Example 1

[0030] like Figure 1-4 As shown, the utility model provides a rock crusher, which has a crusher body 1, wherein a feed box 2 is fixedly installed on the top of the crusher body 1, two stone crushing rollers 12 are symmetrically rotatably connected to the inner cavity of the crusher body 1, and two groups of buffer mechanisms are fixedly installed on the upper end of the crusher body 1 and above the stone crushing rollers 12;

[0031] A feed port 21 is provided on the top wall of the feed box 2, a feed port 22 connected to the inside of the crusher body 1 is provided on the bottom wall of the feed box 2, a feed bin 23 is provided inside the feed box 2, a rotating shaft 24 is rotatably connected inside the feed bin 23, and four supporting blades 241 are equidistantly installed on the rotating shaft 24;

[0032] The right part of the feed box 2 is provided with a retreat groove 25 and a receiving groove 26, and a limit rod 27 is rotatably connected in the receiving groove 26. A limit block 271 extending to the left is fixedly installed at the bottom end of the limit rod 27. The limit block 271 is horizontally structured and the top end abuts against the supporting blade 241.

[0033] A tension spring 28 and a bolt 29 are provided in the retreat groove 25 , and two ends of the tension spring 28 are fixedly connected to the limiting rod 27 and the bolt 29 respectively.

[0034] Optionally, in the above technical solution, two groups of buffer mechanisms are respectively arranged on two opposite inner side walls of the upper end of the crusher body 1, and the two groups of buffer mechanisms are staggered and spaced apart in the height direction.

[0035] Optionally, in the above technical solution, the buffer mechanism includes a buffer plate 31 and a rib plate 32 fixedly mounted on the inner wall of the crusher body 1 , the buffer plate 31 is tilted downward along a horizontal plane, and the rib plate 32 is fixedly connected to the buffer plate 31 .

[0036] Optionally, in the above technical solution, a drive motor 11 is fixedly installed on the rear wall of the crusher body 1, and the output shaft of the drive motor 11 extends forward. The output shaft of the drive motor 11 passes through the rear wall of the crusher body 1 and is rotatably connected thereto, and the output shaft of the drive motor 11 is fixedly connected to the crushing roller shaft 12.

[0037] Optionally, in the above technical solution, a first sliding cavity 41 penetrating the left and right side walls of the crusher body 1 is provided in the crusher body 1 below the stone crushing roller 12 , and a screen plate 4 is slidably connected in the first sliding cavity 41 .

[0038] Optionally, in the above technical solution, a second sliding cavity 51 penetrating the left and right side walls of the crusher body 1 is provided in the crusher body 1 below the screen plate 4 , and a collecting box 5 is slidably connected in the second sliding cavity 51 .

[0039] Among them, the feed port 21, the feed port 22, and the feed bin 23 are connected;

[0040] The tension spring 28 is slidably connected in the retreat groove 25, and the bolt 29 is threadedly connected in the retreat groove 25, so that the tension spring 28 can be stretched or compressed;

[0041] The retreat groove 25 and the containing groove 26 are connected to each other, and the containing groove 26 is connected to the material distribution bin 23 .

[0042] Working principle:

[0043] When in use, the driving motor 11 is started to drive the crushing roller shaft 12 to rotate, and the rocks to be crushed are poured into the feed port 21. The rocks in the feed port 21 enter the sub-bin 23 by their own weight and fall on the supporting blades 241 corresponding to the feed port 21 (such as Figure 1 As shown); when the rock gravity on the support blade 241 is greater than the tension of the tension spring 28 on the limit rod 27, the support blade 241 rotates clockwise to squeeze the limit block 271, causing the limit rod 27 to rotate counterclockwise. At this time, the limit block 271 shrinks into the receiving groove 26, and the tension spring 28 is stretched by the upper end of the limit rod 27 (as shown in FIG. Figure 2 shown);

[0044] At this time, the rocks on the supporting blade 241 fall into the crusher body 1 along the feeding port 22 and the buffer plate 31 under the action of gravity, and are crushed by the two crushing rollers 12; when the supporting blade 241 is away from the receiving groove 26, the limit rod 27 and the limit block 271 are reset under the action of the tension spring 28, that is, the limit block 271 again presses against the next supporting blade 241, so that the rocks continue to accumulate on the supporting blade 241 corresponding to the feeding port 21 at this time (such as Figure 3 shown);

[0045] It can avoid a large amount of rocks from falling at one time and avoid the accumulation of rocks on the stone crushing roller 12, thereby causing the problem of poor rock crushing effect.

[0046] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A rock crusher, comprising a crusher body (1), characterized in that: A feed box (2) is fixedly mounted on the top of the crusher body (1); two stone crushing rollers (12) are symmetrically rotatably connected to the inner cavity of the crusher body (1); and two groups of buffer mechanisms are fixedly mounted on the upper end of the crusher body (1) and above the stone crushing rollers (12); The top wall of the feed box (2) is provided with a feed port (21), the bottom wall of the feed box (2) is provided with a feed port (22) which is connected to the inside of the crusher body (1), a material distribution bin (23) is provided in the feed box (2), a rotating shaft (24) is rotatably connected in the material distribution bin (23), and four supporting blades (241) are equidistantly mounted on the rotating shaft (24); The right part of the feed box (2) is provided with a retreat groove (25) and a receiving groove (26), a limiting rod (27) is rotatably connected in the receiving groove (26), a limiting block (271) extending to the left is fixedly installed at the bottom end of the limiting rod (27), the limiting block (271) is in a horizontal structure and the top end is in contact with the supporting blade (241); A tension spring (28) and a bolt (29) are arranged in the retreat groove (25), and two ends of the tension spring (28) are fixedly connected to the limiting rod (27) and the bolt (29) respectively.

2. A rock crusher according to claim 1, characterized in that: The two groups of buffer mechanisms are respectively arranged on two opposite inner side walls of the upper end of the crusher body (1), and the two groups of buffer mechanisms are staggered and spaced apart in the height direction.

3. A rock crusher according to claim 2, characterized in that: The buffer mechanism comprises a buffer plate (31) and a rib plate (32) fixedly mounted on the inner side wall of the crusher body (1); the buffer plate (31) is arranged to be inclined downward along a horizontal plane; and the rib plate (32) is fixedly connected to the buffer plate (31).

4. A rock crusher according to claim 1, characterized in that: A drive motor (11) is fixedly mounted on the rear wall of the crusher body (1); the output shaft of the drive motor (11) extends forward, passes through the rear wall of the crusher body (1) and is rotatably connected thereto; the output shaft of the drive motor (11) is fixedly connected to the stone crushing roller shaft (12).

5. A rock crusher according to claim 4, characterized in that: A first sliding cavity (41) penetrating the left and right side walls of the crusher body (1) is provided in the crusher body (1) below the stone crushing roller shaft (12), and a screen plate (4) is slidably connected in the first sliding cavity (41).

6. A rock crusher according to claim 5, characterized in that: A second sliding cavity (51) penetrating the left and right side walls of the crusher body (1) is provided in the crusher body (1) below the screen plate (4), and a collecting box (5) is slidably connected in the second sliding cavity (51).

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