An adjustable gap crushing mechanism

Abstract

The application discloses a kind of adjustable gap crushing mechanism, belongs to crushing technical field.Mainly including frame body, and be installed with crushing mechanism on frame body upper end, the crushing mechanism has a group of fixed fixed roller and a group of mobile mobile roller, fixed roller and mobile roller have crushing gap between, while being provided with guide on the upper end of crushing mechanism Material mouth, installation is fed hopper on the upper end of guide, and be installed with pressure material mechanism in fed hopper side wall, while being installed with slide rail in fed hopper side wall, installation is sliding block on slide rail, and installation is mounting plate on sliding block, be installed with hydraulic cylinder in fed hopper side wall, the output end of the hydraulic cylinder is fixedly connected with mounting plate, and hinge is connected with pressing plate in mounting plate side.The adjustable gap crushing mechanism of the application can hold material by setting pressure material mechanism.

Description

Technical Field

[0001] This application relates to the field of crushing technology, specifically to an adjustable gap crushing mechanism. Background Technology

[0002] In the material crushing process in mining, building materials and other fields, double roll crushers are widely used because of their simple structure and low maintenance cost. Traditional double roll crushers crush materials by squeezing them with two relatively rotating rollers, and their crushing gap is mostly a fixed design.

[0003] Since the fixed gap cannot be adjusted in real time according to changes in material viscosity and humidity, sticky materials are prone to clogging the crushing channel, causing the equipment to overload and shut down. Therefore, some double roll crushers adopt an adjustable gap design.

[0004] For example, patent CN216879674U discloses a sand and gravel crushing device for construction engineering. This patent drives the rotating screw to move back and forth in the fixed screw nut by rotating the handle, which in turn drives the sliding base to move horizontally along the strip slide rail, thereby adjusting the gap between the fixed crushing roller and the sliding crushing roller.

[0005] In the actual crushing process, when viscous materials enter the area above the double rollers, they may be affected by the cohesive force between particles, which can easily form a "material bridge" (i.e., arching) between the feed inlet and the roller surface. This can lead to uneven crushing of materials below the roller gap and uncrushed materials inside the arch.

[0006] Therefore, it is necessary to provide an adjustable gap crushing mechanism to solve the above problems.

[0007] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Summary of the Invention

[0008] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide an adjustable gap crushing mechanism, which solves the problem that viscous materials may be affected by the cohesive force between particles when entering the upper part of the double rollers, resulting in arching.

[0009] The technical solution adopted by this application to solve its technical problem is: an adjustable gap crushing mechanism, comprising:

[0010] Frame;

[0011] A crushing mechanism is installed on the upper end of the frame. The crushing mechanism has a set of fixed rollers and a set of movable rollers, with a crushing gap between the fixed rollers and the movable rollers.

[0012] A feed inlet is located at the upper end of the crushing mechanism;

[0013] A feeding hopper is installed at the upper end of the feed inlet;

[0014] A pressing mechanism is installed on the side wall of the feeding hopper, and the pressing mechanism includes:

[0015] The slide rail is installed on the side wall of the hopper;

[0016] A slider, which is mounted on the slide rail;

[0017] A mounting plate is mounted on the slider;

[0018] A hydraulic cylinder is installed on the side wall of the hopper, and the output end of the hydraulic cylinder is fixedly connected to the mounting plate.

[0019] A pressure plate, which is hinged to one side of the mounting plate.

[0020] Furthermore, a spring is provided between the pressure plate and the other side of the mounting plate.

[0021] Furthermore, a locking ring is fixed on one side of the pressure plate, and a through hole is opened at the corresponding position on the mounting plate. The size of the through hole matches the size of the locking ring, and the locking ring is adapted to pass through the through hole and protrude from the other side of the mounting plate.

[0022] Furthermore, an electric cylinder is fixedly installed on the other side of the mounting plate, and a locking block is fixedly installed at the output end of the electric cylinder. The size of the locking block matches the size of the locking ring.

[0023] Furthermore, the slide rails are arranged in two parallel sets, and the extension direction of the slide rails is horizontal, pointing directly above the crushing gap of the crushing mechanism.

[0024] The beneficial effects of this application are: the adjustable gap crushing mechanism provided by this application achieves the effect of pressing the material by setting a pressing mechanism.

[0025] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0027] Figure 1 This is an overall schematic diagram of an adjustable gap crushing mechanism according to this application;

[0028] Figure 2 This is a schematic diagram of an adjustable gap crushing mechanism from another angle in this application.

[0029] Figure 3 This is a partial schematic diagram of an adjustable gap crushing mechanism according to this application;

[0030] Figure 4 for Figure 3 A schematic diagram of A in the middle;

[0031] Figure 5 for Figure 2 Schematic diagram of the upper and middle hoppers;

[0032] Figure 6 for Figure 5 Schematic diagram of the intermediate pressure material mechanism;

[0033] Figure 7 for Figure 5 A schematic diagram of the medium-pressure material handling mechanism from another angle;

[0034] Figure 8 for Figure 5 Cross-sectional schematic diagram of the intermediate pressure material mechanism;

[0035] Figure 9 for Figure 8 A schematic diagram of B in the middle;

[0036] The following are the labeling elements in the figure:

[0037] 1. Frame; 2. Crushing mechanism; 20. Fixed frame; 21. First motor; 22. Sliding frame; 24. Second motor; 25. Fixed roller; 26. Moving roller; 27. Crossbeam; 28. Screw; 3. Feeding hopper; 4. Pressing mechanism; 40. Slide rail; 41. Slider; 42. Hydraulic cylinder; 43. Mounting plate; 44. Pressure plate; 45. Spring; 46. Electric cylinder; 47. Through hole; 48. Locking ring; 49. Locking block; 5. Discharge port; 6. Guide port. Detailed Implementation

[0038] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0040] like Figures 1-3 As shown, this application provides an adjustable gap crushing mechanism, which is mainly used in the material crushing process in the fields of mining and building materials. It is especially suitable for the uniform crushing of sticky materials that are prone to arching (such as clay, wet coal, etc.). Specifically, the adjustable gap crushing mechanism includes a frame 1, and a crushing mechanism 2 is installed on the upper end of the frame 1. The crushing mechanism 2 includes fixed frames 20 symmetrically fixed on both sides of the upper end of the frame 1. A through guide port 6 is opened on the top of the fixed frames 20 on both sides. The guide port 6 is used to guide the material into the crushing mechanism 2 for crushing.

[0041] Meanwhile, a fixed roller 25 is horizontally rotatable on the fixed frames 20 on both sides at the lower end of the feed inlet 6 via bearings, and a first motor 21 is fixedly installed on one side of the frame 1. The output end of the first motor 21 is fixedly connected to one end of the fixed roller 25, so that the first motor 21 can be started to drive the fixed roller 25 to rotate clockwise.

[0042] To achieve adjustment of the crushing gap, such as Figures 1-4 As shown, a sliding groove (not shown in the figure) is provided on the inner side wall of the two sets of fixed frames 20. A sliding frame 22 is slidably arranged on the sliding groove. A movable roller 26 is rotatably installed inside the sliding frame 22 through a bearing. A second motor 24 is fixedly arranged at one end of the sliding frame 22. The output end of the second motor 24 is fixedly connected to one end of the movable roller 26 so as to drive the movable roller 26 to rotate counterclockwise.

[0043] Meanwhile, a crossbeam 27 is fixedly installed on one side of the fixed frame 20. A screw 28 is threaded onto the crossbeam 27. One end of the screw 28 is rotatably connected to one side of the sliding frame 22. By rotating the screw 28 clockwise, the sliding frame 22 is pushed to move the moving roller 26 closer to the fixed roller 25 to reduce the crushing gap. By rotating the screw 28 counterclockwise, the moving roller 26 is moved away from the fixed roller 25 to increase the gap, thereby achieving gap control.

[0044] It should be noted that the distance between the roller surfaces of the fixed roller 25 and the movable roller 26 forms a material crushing channel, and the two are located directly below the guide port 6. Thus, when the material falls into the gap between the two rollers through the guide port 6, it is crushed by the opposing shearing action of the clockwise rotation of the fixed roller 25 and the counterclockwise rotation of the movable roller 26. At the same time, a discharge port 5 is fixedly provided at the bottom of the frame 1, so that the crushed material is discharged through the discharge port 5.

[0045] Example 1: To optimize feeding and make feeding smoother, such as... Figure 1 and Figures 3-9As shown, a feeding hopper 3 is fixedly installed above the feed inlet 6. In order to address the problem that the material tends to arch above the double rollers during crushing, forming a "material bridge" and causing uneven crushing, a pressing mechanism 4 is installed on the left side wall of the feeding hopper 3.

[0046] The pressing mechanism 4 includes two sets of slide rails 40 fixedly installed on the side wall of the feeding hopper 3. A slider 41 is slidably installed on the slide rail 40, and a mounting plate 43 is fixedly installed on the slider 41. A hydraulic cylinder 42 is fixedly installed on the side wall of the feeding hopper 3 between the slide rails 40. The output end of the hydraulic cylinder 42 is fixedly connected to one side of the mounting plate 43. Activating the hydraulic cylinder 42 can push the mounting plate 43 to move horizontally along the slide rail 40 toward the crushing zone, thereby bringing the mounting plate 43 closer to the material layer.

[0047] To achieve material compaction, a pressure plate 44 is hinged to one side of the mounting plate 43, and a spring 45 is fixedly installed on one side of the pressure plate 44. The other side of the spring 45 is fixedly connected to the mounting plate 43. Thus, when the hydraulic cylinder 42 pushes the mounting plate 43 forward, the pressure plate 44 contacts the material surface first. When the material layer height is uneven, the pressure plate 44 can adaptively rotate around one side of the mounting plate 43. At this time, the spring 45 is deformed by pressure to generate dynamic pressure, thereby making the bottom surface of the pressure plate 44 always conform to the undulation of the material surface, completely eliminating material gaps. In this process, the material is continuously pressed into the double roller crushing zone, avoiding the problem of uneven crushing caused by bridging.

[0048] Example 2: To further address the issue of material adhesion during the retraction of the pressure plate 44, such as... Figures 8-9 As shown, a locking ring 48 is fixedly provided on one side of the pressure plate 44, and a through hole 47 is provided at the corresponding position of the mounting plate 43. The size of the through hole 47 matches the size of the locking ring 48. Thus, when the hydraulic cylinder 42 pushes the pressure plate 44 assembly to the maximum stroke, the material resistance causes the spring 45 to compress. At this time, the locking ring 48 can completely pass through the through hole 47 and protrude from the other side of the mounting plate 43.

[0049] Furthermore, an electric cylinder 46 is fixedly installed on the other side of the mounting plate 43. A locking block 49 is fixedly installed at the output end of the electric cylinder 46. The size of the locking block 49 matches the size of the locking ring 48. Thus, when the locking ring 48 completely passes through the through hole 47 and protrudes from the other side of the mounting plate 43, the electric cylinder 46 fixed on the other side of the mounting plate 43 is activated, pushing the locking block 49 to be horizontally inserted into the inner hole of the locking ring 48, thereby locking the pressure plate 44 and the mounting plate 43.

[0050] After crushing is completed, the hydraulic cylinder 42 retracts, and the pressure plate 44 remains locked and returns to its initial position. When it is necessary to remove the attached material, the electric cylinder 46 pulls the locking block 49 back to disengage from the locking ring 48. At this time, the pressure plate 44 is instantly released from its constraint. Then, the spring 45 releases its elastic force to drive the pressure plate 44 to swing downward around one side of the mounting plate 43. The resulting high-frequency vibration will shake off the attached material.

[0051] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An adjustable gap crushing mechanism, characterized in that: include: Frame (1); The crushing mechanism (2) is installed on the upper end of the frame (1). The crushing mechanism (2) has a set of fixed fixed rollers (25) and a set of movable moving rollers (26). There is a crushing gap between the fixed rollers (25) and the moving rollers (26). The feed inlet (6) is located at the upper end of the crushing mechanism (2); A feeding hopper (3) is installed at the upper end of the feed inlet (6); A pressing mechanism (4) is installed on the side wall of the feeding hopper (3), and the pressing mechanism (4) includes: A slide rail (40) is installed on the side wall of the hopper (3); A slider (41) is mounted on the slide rail (40); Mounting plate (43) is mounted on the slider (41); A hydraulic cylinder (42) is installed on the side wall of the feeding hopper (3), and the output end of the hydraulic cylinder (42) is fixedly connected to the mounting plate (43); A pressure plate (44) is hinged to one side of the mounting plate (43).

2. The adjustable gap crushing mechanism according to claim 1, characterized in that: A spring (45) is provided between the pressure plate (44) and the other side of the mounting plate (43).

3. The adjustable gap crushing mechanism according to claim 1, characterized in that: A locking ring (48) is fixed on one side of the pressure plate (44), and a through hole (47) is opened at the corresponding position of the mounting plate (43). The size of the through hole (47) matches the size of the locking ring (48), and the locking ring (48) is adapted to pass through the through hole (47) and protrude from the other side of the mounting plate (43).

4. The adjustable gap crushing mechanism according to claim 3, characterized in that: An electric cylinder (46) is fixedly installed on the other side of the mounting plate (43), and a locking block (49) is fixedly installed at the output end of the electric cylinder (46). The size of the locking block (49) matches the size of the locking ring (48).

5. The adjustable gap crushing mechanism according to claim 1, characterized in that: The slide rails (40) are arranged in two parallel sets, and the extension direction of the slide rails (40) is horizontally directed directly above the crushing gap of the crushing mechanism (2).

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