Roller gap visualisation device and crusher

Abstract

The utility model discloses a kind of visual adjustment devices to roll gap, it includes, be located at the outside of crushing box, and the gap adjusting mechanism being connected with the driven roller bearing seat of both ends, the gap adjusting mechanism includes an adjusting bracket, adjusting bracket includes guide portion and adjustment part, guide portion is used for driven roller bearing seat horizontal movement guide;An adjusting screw is screwed with adjustment part, and its front end is rotatably connected with driven roller bearing seat, for driving driven roller bearing seat horizontal movement;Further include a visual mechanism for showing gap adjusting amount, the visual mechanism is connected with the driven roller bearing seat, when the driven roller bearing seat transverse movement, the pointer of the visual mechanism reversely moves with the distance of N times amplification.It overcomes the shortcoming that existing gap adjustment operation is complicated, and labor intensity is big, can accurately, conveniently adjust gap.

Description

Technical Field

[0001] This utility model relates to a roller gap adjustment mechanism for a crusher, specifically to a visual adjustment device for the roller gap, and belongs to the field of sample preparation technology. Background Technology

[0002] In the field of ore sample preparation, double-roll crushers are commonly used equipment. The particle size adjustment devices on the market rely on operators using a thickness gauge to adjust the gap based on experience, thus adjusting the output particle size. The specific operation involves opening the crushing chamber's top cover, using an adjustment device located on the outside of the crusher body to move the bearing seats at both ends of the driven roller laterally, moving them away from or closer to the driving roller. Simultaneously, the operator needs to insert a thickness gauge between the two rollers; if a 3mm gap is needed, a 3mm gauge is inserted into the gap until it fits snugly, indicating a 3mm gap. The top cover is then closed. When the diameter of the sample to be ground changes, the cover needs to be opened again for adjustment. Therefore, this method suffers from high complexity and labor intensity in adjusting the gap, increasing the difficulty of gap adjustment. To address the issues of high labor intensity, lack of intuitive adjustment, and inability to accurately adjust the required gap, further research is needed.

[0003] Based on the shortcomings of existing crusher gap adjustment devices, a visual double roller gap adjustment mechanism has become the goal pursued by those skilled in the art. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that the existing crusher gap adjustment mechanism is not intuitive and cannot accurately adjust the gap.

[0005] To achieve the above-mentioned objectives, the technical solution of this utility model is as follows: a roller gap visualization adjustment device, comprising a gap adjustment mechanism for adjusting the roller gap of a crusher, two gap adjustment mechanisms being disposed on the outside of the crushing chamber and respectively connected to driven roller bearing seats at both ends, for driving the driven roller bearing seats to move horizontally, thereby changing the roller gap adjustment. Each gap adjustment mechanism includes an adjustment bracket, which includes a horizontally arranged guide portion and an adjustment portion vertically disposed at its end. The guide portion contacts the horizontal side of the driven roller bearing seat, guiding the horizontal movement of the driven roller bearing seat. An adjustment screw is screwed to the adjustment portion, and its front end is rotatably connected to the vertical side of the driven roller bearing seat, for driving the driven roller bearing seat to move horizontally. The device is characterized in that it further includes a visualization mechanism for displaying the gap adjustment amount. The visualization mechanism is connected to the driven roller bearing seat, and when the driven roller bearing seat moves laterally, the pointer of the visualization mechanism moves in the opposite direction by a magnified N-fold distance.

[0006] This utility model also provides a crusher with a visual adjustment device for the roller gap, comprising: a frame; a crushing chamber mounted on the frame; a driving roller and a driven roller for crushing rotatably arranged adjacent to each other inside the crushing chamber; and a motor mounted on the frame. The driving roller is mounted on a driving roller bearing seat located outside the crushing chamber via a driving shaft and bearings, and the driven roller is mounted on a driven roller bearing seat located outside the crushing chamber via a driven shaft and bearings. The driven roller bearing seats are arranged laterally and are movable. Two gap adjustment mechanisms for adjusting the roller gap are located outside the crushing chamber and connected to the driven roller bearing seats at both ends, for driving the driven roller bearing seats to move horizontally laterally, so that the driven roller and the driven roller... The gap adjustment mechanism of the drive roller includes an adjustment bracket, which includes a horizontally positioned guide portion and a vertically positioned adjustment portion at its end. The guide portion contacts the horizontal side of the driven roller bearing seat to guide the horizontal movement of the driven roller bearing seat. An adjustment screw is screwed to the adjustment portion, and its front end is rotatably connected to the vertical side of the driven roller bearing seat to drive the driven roller bearing seat to move horizontally. The mechanism further includes a visualization mechanism for displaying the gap adjustment amount. The visualization mechanism is connected to the driven roller bearing seat, and when the driven roller bearing seat moves laterally, the pointer of the visualization mechanism moves in the opposite direction by a magnified N-fold distance.

[0007] As a preferred embodiment, the visualization mechanism includes a scale and a linkage rod. The middle part of the linkage rod is rotatably connected to the outer end face of the guide part via a rotating shaft. The lower end of the linkage rod is rotatably connected to the outer end face of the driven roller bearing seat. A pointer is provided at the free end of the linkage rod, and the pointer is adjacent to the side of the scale with graduations. The scale is set at the position corresponding to the pointer by magnification N times via a scale bracket.

[0008] As a preferred embodiment, the scale is an arc-shaped cylindrical surface, and the graduations are located on the top of the arc-shaped cylindrical surface; the center of the arc-shaped cylindrical surface of the scale is concentric with the rotation axis; the pointer is bent perpendicularly to the linkage rod and rests on the top of the arc-shaped cylindrical surface of the scale; or... The scale is fan-shaped, with the graduations located in front of the fan-shaped surface. The center of the fan-shaped surface of the scale is concentric with the rotating shaft. The pointer is located at the end of the linkage rod, corresponding to the front of the fan-shaped surface of the scale.

[0009] As a preferred embodiment, the distance from the pointer to the center of the rotating shaft is N:1 to the distance from the center of the rotating shaft to the connection point between the lower end of the linkage rod and the driven roller bearing seat, where N is greater than 1.

[0010] As a preferred embodiment, the guide portion of the adjusting bracket is located above the driven roller bearing seat, the adjusting portion is located at the end of the guide portion away from the driving roller, and the lower end of the adjusting portion has a flange for fixing the adjusting bracket; the upper part of the other end of the guide portion is connected to the side of the crushing box through a connector.

[0011] This invention, by adopting the aforementioned technical solution, adds a visualization mechanism to the gap adjustment mechanism. Specifically, the visualization mechanism is located between the gap adjustment mechanism and the driven roller bearing seat, i.e., connected to the driven roller bearing seat. When the driven roller bearing seat moves under the drive of the gap adjustment mechanism, the visualization mechanism has a pointer indicating the moving distance, and the pointer moves in the opposite direction with N times magnification. Therefore, the actual reverse movement distance of the driven roller bearing seat can be calculated based on the distance the pointer moves. Thus, the entire gap adjustment process can be observed through the visualization mechanism. When the required gap is reached, the adjustment can be stopped immediately. The entire gap adjustment process does not require opening the top cover of the crushing chamber, nor does it require the cumbersome operation of using feeler gauges for simultaneous inspection and adjustment, making the gap adjustment operation simpler and improving adjustment accuracy.

[0012] Specifically, this visualization mechanism uses a linkage rod and a scale. The middle of the linkage rod is hinged to the guide part of the adjustment bracket, and the lower end is rotatably connected to the outer end face of the driven roller bearing seat. The pointer is located at the upper end of the linkage rod, and the distance L2 from the pointer to the hinge center of the linkage rod is N times the distance L1 from the hinge center to the connection position between the linkage rod and the driven roller bearing seat. Therefore, when the driven roller bearing seat moves a certain distance, the pointer will move by a multiple of the distance ratio L2:L1=N. Thus, the scale acts as a magnified scale, which is more effective for adjusting small gaps and helps improve adjustment accuracy. Attached Figure Description

[0013] Figure 1 , 2 3 are perspective views, end views, and top views of the roller gap visualization adjustment device described in this utility model; Figure 4 This is an end view of the scale and linkage rod of the roller gap visualization adjustment device described in this utility model; Figure 5 This is a perspective view of the crusher with a visual adjustment device for the roller gap described in this utility model; Figure 6 This is a horizontal cross-sectional view along the center of the rollers of the crusher with a visual adjustment device for the gap between the rollers as described in this utility model; Figure 7 This is an end view of Embodiment 3 of the roller gap visualization adjustment device of this utility model.

[0014] Explanation of reference numerals in the attached drawings: Visualization mechanism 1, linkage rod 10, scale 11, pointer 12, rotating shaft 13, hinge pin 14, adjusting bracket 15, guide part 151, adjusting part 152, screw hole 153, flange 154, scale bracket 16; Gap adjustment mechanism 2, crushing box 20, adjusting screw 21, boss 211, driven roller bearing seat 22, blind hole 221, driven roller 23, driving roller 24, driving shaft 25, driving roller bearing seat 26, driven shaft 27, end cover 28, connecting piece 29; Belt drive device 3, frame 4, motor 5, transmission device 6. Detailed Implementation

[0015] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but these preferred embodiments should not be used to limit the scope of protection of the present invention.

[0016] Example 1, referring to Figures 1-6, shows a visual adjustment device for the gap between rollers according to this utility model. It is an improvement on the gap adjustment mechanism of the existing double-roll crusher, and provides a visual adjustment device for the gap between rollers. This allows the adjustment amount to be directly observed when adjusting the gap, so that it is no longer necessary to open the crusher box cover. The gap can be directly adjusted to the required value, which improves the gap adjustment accuracy and ensures the consistency of the gap at both ends of the double-roller.

[0017] The present invention describes a visual adjustment device for the roller gap, comprising a gap adjustment mechanism 2 for adjusting the roller gap of a crusher. Two gap adjustment mechanisms 2 are located on the outside of the crushing chamber 20, corresponding to the driven roller bearing seats 22, and are respectively connected to the driven roller bearing seats 22 at both ends, thereby driving the driven roller bearing seats 22 to move horizontally to adjust the roller gap. The gap adjustment mechanism 2 includes an adjustment bracket 15, which includes a horizontally arranged guide portion 151 and an adjustment portion 152 vertically arranged at the end of the guide portion 151 away from the driving roller. The guide portion 151 contacts the horizontal side of the driven roller bearing seat 22. The driven roller bearing seat 22 is square, preferably contacting the upper horizontal side of the driven roller bearing seat 22, providing guidance when the driven roller bearing seat 22 moves horizontally. The adjustment portion 152 is located outside the driven roller bearing seat 22. On the side, a screw hole 153 is provided on the adjusting part 152. The axis of the screw hole is preferably perpendicular to the vertical side of the driven roller bearing seat 22, or in other words, consistent with the horizontal movement direction of the driven roller bearing seat 22. The adjusting bracket 15 is installed and fixed as follows: a horizontally set flange 154 is provided at the lower end of the adjusting part 152. The flange 154 of the adjusting bracket 15 is fixed to the frame 4 of the crusher by bolts. At the same time, the upper part of the other end of the guide part 151 is connected to the side of the crushing box 20 by the connecting piece 29. An adjusting screw 21 is screwed into the screw hole 153 of the adjusting part 152. Its front end is rotatably connected to the vertical side of the driven roller bearing seat 22. In this embodiment, the front end of the adjusting screw 21 has a circular boss 211. A blind hole 221 is provided on the vertical side of the driven roller bearing seat 22 to receive the boss 211. An end cap 28 is provided at the outer end of the vertical side of the driven roller bearing seat 22 to rotatably limit the boss 211 in the blind hole 221. The rear end of the adjusting screw 21 is square column-shaped. The adjusting screw 21 can be rotated by a wrench, so that its end boss 211 drives the driven roller bearing seat 22 to move horizontally to adjust the roller gap. The feature of this utility model is that it further includes a visualization mechanism 1 for displaying the gap adjustment amount. The visualization mechanism 1 is connected to the driven roller bearing seat 22. When the driven roller bearing seat 22 moves laterally, the pointer 12 of the visualization mechanism 1 moves in the opposite direction by a magnified distance of N times.

[0018] Specifically, see Figure 1-4 The visualization mechanism 1 includes a scale 11 and a linkage 10. The middle part of the linkage 10 is rotatably connected to the guide part 151 of the adjustment bracket 15 via a pivot 13. (See figure) Figure 2 , 4The center of the rotating shaft 13 is defined as O. The lower end of the linkage rod 10 is connected to the outer end face of the driven roller bearing seat 22 through the hinge pin 14. The distance from the center of the hinge pin 14 to point O is defined as L1, and the distance from the end of the pointer 12 to point O is defined as L2. The pointer 12 is provided at the free end of the upper part of the linkage rod 10. The scale 11 is set below the corresponding position of the pointer 12 through the scale bracket 16. The scale 11 is an arc-shaped cylindrical surface, that is, part of a cylindrical surface. Its center is concentric with the center O of the rotating shaft 13. Therefore, it is best to set the scale bracket 16 symmetrically with the center O of the rotating shaft 13 as the center. The scale of ruler 11 is located on the upper surface of its arc-shaped cylindrical surface. The pointer 12 is bent vertically onto the arc surface of ruler 11 via the linkage 10. Ruler 11 is a magnified scale with a magnification factor of N, where N = L2:L1. For example, if L1 = 30mm and L2 = 180mm, then ruler 11 is magnified 6 times. When the pointer displacement is 6mm, it means the actual reverse displacement is 1mm. Observing the magnified adjustment amount improves adjustment accuracy. Therefore, when actually adjusting the gap, it is not necessary to open the top cover of the crusher housing; the adjustment amount can be read directly through the pointer 12 of the visualization mechanism 1. Furthermore, because ruler 11 is a magnified scale, it reduces the labor intensity of workers, facilitates adjustment and operation, and improves adjustment accuracy.

[0019] Example 2, see Figure 5 , 6 This utility model also provides a crusher with a visual adjustment device for the roller gap, comprising: a frame 4 for supporting and mounting a crushing chamber 20, the crushing chamber 20 being mounted on top of the frame 4; a motor 5 providing power inside the frame 4; a driving roller 24 and a driven roller 23 arranged side-by-side inside the crushing chamber 20, the driving roller 24 being mounted on a driving roller bearing seat 26 via a driving shaft 25 and bearings, allowing it to rotate; similarly, the driven roller 23 being mounted on a driven roller bearing seat 22 via a driven shaft 27 and bearings, the driven roller 23 being arranged side-by-side with a certain gap; a belt drive device 3 being provided between the motor 5 and the driving shaft 25 of the driving roller 24 for driving the driving roller 24 to rotate; and a transmission device 6 being provided at the other end of the driving shaft and the driven shaft, the transmission mechanism 6 being prior art and not described in detail, for driving the driven roller 23 to rotate relative to the driving roller 24. Both the active roller bearing seat 26 and the driven roller bearing seat 22 are located on the outer sides of the crushing box 20. The driven roller bearing seat 22 is arranged laterally and can move. Two gap adjustment mechanisms 2 for adjusting the roller gap are located on the outside of the crushing box 20 and connected to the driven roller bearing seats 22 at both ends. They are used to drive the driven roller bearing seats 22 to move horizontally, so that the gap between the driven roller 23 and the active roller 24 can be adjusted and changed.

[0020] The main improvement of this utility model is the gap adjustment mechanism, which adds a visualization mechanism 1. The specific scheme is the same as that in Embodiment 1, and will not be described again.

[0021] Example 3, see Figure 7 The figure shows another structure of the visualization mechanism 1. Unlike embodiment 1, the scale 11 is fan-shaped, and the pointer 12 is located at the end of the linkage rod 10, corresponding to the front of the fan-shaped surface of the scale 11. In this case, the distance L2 is the distance from the hinge center to the end of the pointer 12.

[0022] The above description is illustrative only and not restrictive of this utility model. This utility model aims to provide a crusher with a visual adjustment device for roller gap and its application, so that the gap adjustment mechanism can display the adjustment amount. Those skilled in the art will understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the claims, such as the enlargement ratio of the scale, but all of these will fall within the protection scope of this utility model.

Claims

1. A device for visually adjusting the gap of rollers, comprising a gap adjusting mechanism (2) for adjusting the gap of the rollers of a crusher, two gap adjusting mechanisms (2) being disposed outside the crushing chamber (20) and respectively connected to driven roller bearing seats (22) at both ends, for driving the driven roller bearing seats (22) to move horizontally, thereby changing the roller gap, wherein the gap adjusting mechanism (2) includes an adjusting bracket (15), the adjusting bracket (15) including a horizontally disposed guide part (151) and an adjusting part (152) vertically disposed at its end, the guide part (151) contacting the horizontal side of the driven roller bearing seat (22) for guiding the horizontal movement of the driven roller bearing seat (22), an adjusting screw (21) being screwed to the adjusting part (152), and its front end being rotatably connected to the vertical side of the driven roller bearing seat (22) for driving the driven roller bearing seat (22) to move horizontally; characterized in that, It further includes a visualization mechanism (1) for displaying the amount of gap adjustment, the visualization mechanism (1) being connected to the driven roller bearing housing (22), and the pointer (12) of the visualization mechanism (1) moving in the opposite direction by a magnified distance of N when the driven roller bearing housing (22) moves laterally.

2. A roll gap visualization adjustment device according to claim 1, characterized in that The visualization mechanism (1) includes a scale (11) and a linkage (10). The middle part of the linkage (10) is rotatably connected to the outer end face of the guide (151) via a rotating shaft (13). The lower end of the linkage (10) is rotatably connected to the outer end face of the driven roller bearing seat (22). A pointer (12) is provided on the free end of the linkage (10). The pointer (12) is adjacent to the side of the scale (11) with graduations. The scale (11) is set at the position corresponding to the pointer (12) by a scale bracket (16) magnified N times.

3. A roll gap visualization adjustment device according to claim 2, wherein, The scale (11) is an arc-shaped cylindrical surface, and the graduations are located on the top of the arc-shaped cylindrical surface; the center of the arc-shaped cylindrical surface of the scale (11) is concentric with the rotating shaft (13); the pointer (12) is bent perpendicularly to the linkage rod (10) onto the top of the arc-shaped cylindrical surface of the scale (11); or, The scale (11) is fan-shaped, and the scale is located in front of the fan-shaped surface. The center of the fan-shaped surface of the scale (11) is concentric with the rotating shaft (13). The pointer (12) is located at the end of the linkage rod (10) and is located in front of the fan-shaped surface of the scale (11).

4. A roll gap visualization adjustment device according to claim 2, wherein, The distance from the pointer (12) to the center of the rotating shaft (13) is N:1 compared to the distance from the center of the rotating shaft (13) to the connection point between the lower end of the linkage rod (10) and the driven roller bearing seat (22), where N is greater than 1.

5. A device for visually adjusting the gap between rollers according to any one of claims 1-4, characterized in that, The guide portion (151) of the adjusting bracket (15) is located on the upper part of the driven roller bearing seat (22), and the adjusting portion (152) is located at the end of the guide portion (151) away from the driving roller. The lower end of the adjusting portion (152) has a flange (154) for fixing the adjusting bracket (15); the upper part of the other end of the guide portion (151) is connected to the side of the crushing box (20) by a connector (29).

6. A crusher with a visual adjustment device for the roller gap, comprising: a frame (4); a crushing chamber (20) disposed on the frame (4); a drive roller (24) and a driven roller (23) for crushing rotatably disposed adjacent to each other within the crushing chamber (20); and a motor (5) disposed on the frame (4); the drive roller (24) is mounted on a drive roller bearing seat (26) located outside the crushing chamber (20) via a drive shaft (25) and bearings; the driven roller (23) is mounted on a driven roller bearing seat (22) located outside the crushing chamber (20) via a driven shaft (27) and bearings; the driven roller bearing seat (22) is arranged laterally movable; and two gap adjustment mechanisms (2) for adjusting the roller gap are disposed outside the crushing chamber (20) and... The clearance adjustment mechanism (2) is connected to the driven roller bearing seats (22) at both ends and is used to drive the driven roller bearing seats (22) to move horizontally, thereby adjusting the gap between the driven roller (23) and the driving roller (24). The clearance adjustment mechanism (2) includes an adjustment bracket (15), which includes a horizontally arranged guide part (151) and an adjustment part (152) vertically arranged at its end. The guide part (151) contacts the horizontal side of the driven roller bearing seat (22) to guide the horizontal movement of the driven roller bearing seat (22). An adjustment screw (21) is screwed to the adjustment part (152), and its front end is rotatably connected to the vertical side of the driven roller bearing seat (22) to drive the driven roller bearing seat (22) to move horizontally. It further includes a visualization mechanism (1) for displaying the amount of gap adjustment, the visualization mechanism (1) being connected to the driven roller bearing housing (22), and the pointer (12) of the visualization mechanism (1) moving in the opposite direction by a magnified distance of N when the driven roller bearing housing (22) moves laterally.

7. The crusher of claim 6, wherein The visualization mechanism (1) includes a scale (11) and a linkage (10). The middle part of the linkage (10) is rotatably connected to the outer end face of the guide (151) via a rotating shaft (13). The lower end of the linkage (10) is rotatably connected to the outer end face of the driven roller bearing seat (22). A pointer (12) is provided at the free end of the linkage (10). The pointer (12) is adjacent to the side of the scale (11) with graduations. The scale (11) is set at the position corresponding to the pointer (12) by a scale bracket (16) magnified N times.

8. The crusher of claim 7, wherein, The scale (11) is an arc-shaped cylindrical surface, and the graduations are located on the top of the arc-shaped cylindrical surface; the center of the arc-shaped cylindrical surface of the scale (11) is concentric with the rotating shaft (13); the pointer (12) is bent perpendicularly to the linkage rod (10) onto the top of the arc-shaped cylindrical surface of the scale (11); or, The scale (11) is fan-shaped, and the scale is located in front of the fan-shaped surface. The center of the fan-shaped surface of the scale (11) is concentric with the rotating shaft (13). The pointer (12) is located at the end of the linkage rod (10) and is located in front of the fan-shaped surface of the scale (11).

9. The crusher of claim 7, wherein, The distance from the pointer (12) to the center of the rotating shaft (13) is N:1 compared to the distance from the center of the rotating shaft (13) to the connection point between the lower end of the linkage rod (10) and the driven roller bearing seat (22), where N is greater than 1.

10. The crusher according to any one of claims 6-9, characterized in that, The guide portion (151) of the adjusting bracket (15) is located on the upper part of the driven roller bearing seat (22), and the adjusting portion (152) is located at the end of the guide portion (151) away from the driving roller. The lower end of the adjusting portion (152) has a flange (154) for fixing the adjusting bracket (15); the upper part of the other end of the guide portion (151) is connected to the side of the crushing box (20) by a connector (29).

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