An adjustable-gap crushing roller for a crusher

Abstract

The present invention relates to a crushing roller for a crusher with adjustable spacing, comprising a main roller body and an auxiliary roller body for rotating the crushing roller, an adjusting member for adjusting the spacing of crushing teeth is arranged between the main roller body and the auxiliary roller body, the adjusting member drives the scissor member to deform through the built-in bidirectional screw, and is used to adjust the position of the straight rods at the intersections of the midpoints of the scissor member. The present invention divides the original crushing roller into two parts, and arranges an adjusting member with adjustable spacing inside the adjusting member, drives the scissor member located in the middle to change through the bidirectional screw in the adjusting member, and the middle scissor member drives the other scissor members to work together, so that the pin sliding feet at the intersections of the midpoints of each scissor member drive the straight rods to adjust the distance between adjacent ones, and then the straight rods drive the crushing teeth plugged in at the upper and lower ends to change the distance between adjacent ones along the crushing roller, so as to adapt to objects of different volumes and fragments of different volumes at the cutting position.

Description

Technical Field

[0001] The invention relates to the technical field of crushers, in particular to a crushing roller for a crusher with adjustable spacing. Background Art

[0002] The double-roll crusher uses a pair of crushing rollers rotating in opposite directions to crush materials. The materials fall into the gap between the two crushing rollers through the feeding port on the upper part of the equipment, and are cut and crushed by the blades of the crushing rollers in the gap between the two crushing rollers. As they are gradually squeezed and crushed, the finished materials leak out from the bottom. When encountering materials that are too hard to be crushed, the crushing rollers automatically give way, increasing the gap between the two crushing rollers, and the hard materials fall down. With the action of the hydraulic cylinder or spring, the crushing rollers return to the original gap, thereby protecting the machine. By adjusting the gap between the two crushing rollers, the maximum particle size of the product can be controlled.

[0003] The intervals of the crushing blades on the existing crushing rollers are fixed, resulting in fixed models and specifications, and the machine cannot be automatically adjusted according to the size of the crushed object, so that the volume of the crushed material is more in line with the requirements. Summary of the invention

[0004] In order to meet the above-mentioned demand for automatically adjusting the spacing between the crushing teeth on the crushing roller, the present invention proposes a crushing roller for a crusher with adjustable spacing.

[0005] The technical problem to be solved by the present invention is achieved by adopting the following technical solutions:

[0006] A crushing roller for a crusher with adjustable spacing comprises a main roller body and an auxiliary roller body for rotating the crushing roller, an adjusting member for adjusting the spacing of crushing teeth is arranged between the main roller body and the auxiliary roller body, the adjusting member drives a scissors-fork member to deform through a built-in bidirectional lead screw, and is used to adjust the position of straight rods at the intersections of the midpoints of the scissors-fork member, and the straight rods drive the crushing teeth plugged at both ends to move along the main roller body and the auxiliary roller body.

[0007] The scissor parts are provided with multiple groups that are hinged and rotated with each other, and the midpoint intersection of the scissor parts is pin-connected by a pin slide foot, and one end of the pin slide foot slides in a slide groove opened on the side wall of the main roller body.

[0008] One end of the pin slide is fixedly connected to a straight rod, and retractable pins are respectively arranged at the upper and lower ends of the straight rod. The pins are inserted into the limiting holes on the inner wall of the crushing tooth under the action of an internal spring.

[0009] The multiple groups of scissor parts are arranged in odd groups, and the intersections of the upper and lower ends of the scissor parts of the middle group are connected by screw pins, and the upper and lower screw pins are respectively screwed to the upper and lower sections of the bidirectional screw.

[0010] One end of the bidirectional lead screw is fixedly connected with a rechargeable motor, the motor is fixed on the main roller body, and a storage battery is arranged inside the main roller body.

[0011] The adjacent straight rods are connected via a multi-stage telescopic plate, and the straight rods located on both sides are fixedly connected with two rolling plates arranged on the side surfaces of the main roller body.

[0012] The plurality of multi-stage telescopic plates and the rolling plates are symmetrically arranged in two groups, upper and lower, for blocking the gap between the main roller body and the auxiliary roller body.

[0013] The side surfaces of the main roller body and the auxiliary roller body are combined by inserting strips in the notches to form a complete crushing roller body.

[0014] A convex strip is fixedly connected to the other side of the main roller body. The convex strip is symmetrical to the insert strip and corresponds to the notch on the inner wall of the crushing tooth.

[0015] The beneficial effects of the present invention are:

[0016] The present invention divides the original crushing roller into two parts, and provides an adjusting part for adjusting the spacing therein, and drives the scissor part located in the middle to change through the bidirectional lead screw in the adjusting part, and the middle scissor part drives the other scissor parts to work in conjunction, so that the pin sliding feet at the intersection of the midpoints of each scissor part drive the straight rod to adjust the distance between adjacent ones, and then the straight rod drives the crushing teeth inserted at the upper and lower ends to change the distance between adjacent ones along the crushing roller, which is used to adapt to objects of different volumes and fragments of different volumes at the cutting point, increases practicality and scope of application, and improves the effect of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 It is an overall three-dimensional schematic diagram of the present invention;

[0019] Figure 2 It is a partial internal schematic diagram of the present invention;

[0020] Figure 3 It is a cross-sectional schematic diagram of the present invention;

[0021] Figure 4 yes Figure 3 A schematic diagram of the structure at A;

[0022] Figure 5 yes Figure 3 Enlarged schematic diagram of the structure at B.

[0023] In the figure: 1. main roller body; 11. rotating shaft; 12. convex strip; 13. notched groove; 14. slide groove; 2. adjusting member; 21. scissors member; 211. pin slide foot; 212. screw ring pin; 22. bidirectional screw; 221. motor; 23. straight rod; 231. latch pin; 232. spring; 24. multi-stage telescopic plate; 25. rolling plate; 251. plate body; 3. auxiliary roller body; 4. insert strip; 5. crushing tooth; 51. limiting hole. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be explained more clearly and completely below in conjunction with the drawings in the embodiments. Of course, the described embodiments are only a part of the present invention but not all of it. Based on this embodiment, other embodiments obtained by those skilled in the art without creative labor are all within the protection scope of the present invention.

[0025] like Figures 1 to 5 As shown, a crushing roller for a crusher with adjustable spacing includes a main roller body 1 and an auxiliary roller body 3 for rotating the crushing roller, an adjusting member 2 for adjusting the spacing of crushing teeth 5 is arranged between the main roller body 1 and the auxiliary roller body 3, the adjusting member 2 drives the scissors member 21 to deform through the built-in bidirectional lead screw 22, and is used to adjust the position of the straight rod 23 at the intersection of each midpoint of the scissors member 21, and the straight rod 23 drives the crushing teeth 5 plugged at both ends to move along the main roller body 1 and the auxiliary roller body 3.

[0026] The scissor parts 21 are provided with multiple groups that are hinged and rotated with each other, and the midpoint intersection of the scissor parts 21 is pinned by a pin slide foot 211, and one end of the pin slide foot 211 slides in the slide groove 14 provided on the side wall of the main roller body 1. By providing the pin slide foot 211 at the midpoint intersection of the scissor parts 21, on the one hand, the pin slide foot 211 slides uniformly in the slide groove 14 to ensure that the midpoints of each scissor part 21 are located at the same height, so that the height of each scissor part 21 is consistent, and on the other hand, one end of the pin slide foot 211 is fixedly connected to a straight rod 23, so that each straight rod 23 can maintain horizontal translation, thereby driving the crushing teeth 5 at both ends to translate along the main roller body 1 and the auxiliary roller body 3 to open the distance between each other or shorten the distance between each other.

[0027] One end of the pin slide 211 is fixedly connected to a straight rod 23, and a retractable plug 231 is respectively provided at the upper and lower ends of the straight rod 23, and the plug 231 is inserted into the limiting hole 51 on the inner wall of the crushing tooth 5 under the action of the internal spring 232. A protrusion is provided on the side of the plug 231, and the protrusion passes through the strip grooves on the side walls of the two ends of the straight rod 23. The user pushes the protrusion downward to mobilize the plug 231 to squeeze the spring 232 back into the straight rod 23, so as to detach the crushing tooth 5 from the straight rod 23 for replacement or maintenance. On the contrary, after letting go, the plug 231 automatically rebounds upward under the action of the internal spring 232 and is re-inserted into the limiting hole 51.

[0028] The multiple groups of scissor parts 21 are arranged in odd groups, and the intersection of the upper and lower ends of the group of scissor parts 21 in the middle is pinned by a screw ring pin 212, and the upper and lower screw ring pins 212 are respectively screwed to the upper and lower sections of the bidirectional screw 22. The setting of the odd group is used to set the bidirectional screw 22 exactly on the middle scissor part 21, ensuring that the expansion or contraction distance of the scissor parts 21 on both sides is the same

[0029] One end of the bidirectional lead screw 22 is fixedly connected with a rechargeable motor 221, which is fixed on the main roller body 1, and a battery is arranged inside the main roller body 1. By arranging a replaceable battery inside the main roller body 1 to power the motor 221, the normal use of the motor 221 is ensured, and the opening and closing of the motor 221 and the clockwise and counterclockwise rotation can be remotely controlled from the outside, so that the distance of the internal crushing teeth 5 can be automatically adjusted.

[0030] Adjacent straight rods 23 are connected by multi-stage telescopic plates 24, and the straight rods 23 on both sides are fixedly connected with two roll plates 25 arranged on the side of the main roller body 1. The arrangement of the multi-stage telescopic plates 24 makes the innermost plate area smaller when the stretching is longer, and the area blocked on both sides is smaller, but since the entire scissor fork 21 is provided with multiple groups, the straight rods 23 are also provided with multiple groups, and thus the multi-stage telescopic plates 24 are also provided with multiple groups, which occupy most of the length, so that the distance that each multi-stage telescopic plate 24 needs to be stretched is limited, and then the distance between the innermost telescopic plate and the two sides is also limited, which is much smaller than the volume of the fragments, so that the fragments cannot fall into the inside, and the roll plate 25 is similar to a tape measure, and the iron plate body 251 is rolled up by the built-in spring to achieve long-distance shielding adaptation on both sides, avoiding the problem that a large gap may be left on both sides when using the multi-stage telescopic plates 24.

[0031] Multiple multi-stage telescopic plates 24 and rolling plates 25 are symmetrically arranged in two groups, one above the other, to block the gap between the main roller body 1 and the auxiliary roller body 3. Two groups of multi-stage telescopic plates 24 and rolling plates 25 are symmetrically arranged to block the gap between the main roller body 1 and the auxiliary roller body 3 on both sides, so as to prevent broken objects from entering the gap and hindering the bidirectional lead screw 22 or the multiple groups of scissor parts 21, so as to prevent the internal parts from operating normally.

[0032] The sides of the main roller body 1 and the auxiliary roller body 3 are combined by inserting the strips 4 in the notches 13 to form a complete crushing roller body. The auxiliary roller body 3 is set as a semi-cylinder, and the main roller body 1 is a combination of a semi-cylinder and a cylinder at both ends. The semi-cylindrical part of the main roller body 1 is the same as and corresponds to the auxiliary roller body 3. The cylindrical parts at both ends of the main roller body 1 and the auxiliary roller body 3 are provided with notches 13, and the strips 4 are inserted into the notches 13. At the same time, the strips 4 are in contact with the notches of each crushing tooth 5, thereby avoiding the possibility of longitudinal movement and realizing the locking of the main roller body 1 and the auxiliary roller body 3.

[0033] The other side of the main roller body 1 is fixedly connected with a convex strip 12, which is symmetrical with the insertion strip 4 and corresponds to the notch on the inner wall of the crushing tooth 5. The convex strip 12 is used to limit the crushing tooth 5 on the one hand, guiding the crushing tooth 5 to move along the main roller body 1 and the auxiliary roller body 3, and on the other hand, to prevent the crushing tooth 5 from rotating on the outer wall of the main roller body 1 and the auxiliary roller body 3. The symmetrical arrangement of the convex strip 12 and the insertion strip 4 shares the circumferential pressure of a single insertion strip 4 or the convex strip 12, and limits the crushing tooth 5 more evenly. The rotating shafts 11 are arranged at both ends of the main roller body 1 for installation through the bearing seat and connection with the reducer to achieve normal operation.

[0034] When the interval between the crushing teeth 5 is increased: the motor 221 is started, and the motor 221 drives the bidirectional lead screw 22 to rotate clockwise. The rotation of the bidirectional lead screw 22 drives the two screw ring pins 212 to close to the middle, so that the longitudinal distance of the scissor fork member 21 in the middle is reduced and the lateral distance is expanded, thereby pushing the remaining scissor fork members 21 pinned thereto to change as well, so that while the scissor fork members 21 on the farthest sides change, the position is also moved to both sides along the slide groove 14 at the same time through the pin slide foot 211, thereby lengthening the entire scissor fork group, increasing the distance between each pin slide foot 211, and increasing the distance between the straight rod 23 fixed with each pin slide foot 211. The movement of the straight rod 23 drives the crushing teeth 5 to move along the convex strips 12 and the insert strips 4 on the outer walls of the main roller body 1 and the auxiliary roller body 3 through the upper and lower ends, thereby expanding the distance between adjacent crushing teeth 5, which is used to adapt to larger fragments that need to be crushed, and also to adapt to larger objects to be crushed.

[0035] When the distance between adjacent straight rods 23 increases, the multi-stage telescopic plates 24 are pulled apart from each other to adapt to the expanded distance, and the straight rods 23 on both sides move to both sides, causing the rolling plates 25 on both sides to further roll up the plate body 251 into the interior through the internal spring for adaptation. The multi-stage telescopic plates 24 and the rolling plates 25 always cooperate with the movement of the straight rods 23 and fill and block the gap between the main roller body 1 and the auxiliary roller body 3 to prevent broken objects from entering the interior and hindering the operation of the internal bidirectional screw 22 or multiple scissors fork parts 21.

[0036] When the interval between the crushing teeth 5 is reduced: start the motor 221, the motor 221 drives the bidirectional lead screw 22 to rotate counterclockwise, and the rotation of the bidirectional lead screw 22 drives the two screw ring pins 212 to separate to both sides, so that the longitudinal distance of the scissor fork 21 in the middle is expanded and the lateral distance is reduced, thereby pushing the remaining scissor fork parts 21 pinned thereto to change as well, so that while the scissor fork parts 21 on the farthest sides change, the position is also moved toward the middle along the slide groove 14 at the same time through the pin slide foot 211, thereby shortening the entire scissor fork group, reducing the distance between each pin slide foot 211, and reducing the distance between the straight rod 23 fixed with each pin slide foot 211. The movement of the straight rod 23 drives the crushing teeth 5 to move along the convex strips 12 and the inserted strips 4 on the outer walls of the main roller body 1 and the auxiliary roller body 3 through the upper and lower ends, thereby reducing the distance between adjacent crushing teeth 5, which is used to adapt to smaller fragments that need to be crushed, and also to adapt to smaller objects to be crushed.

[0037] When the distance between adjacent straight rods 23 is reduced, the multi-stage telescopic plates 24 are pushed to shorten the distance to adapt to the reduction. The straight rods 23 on both sides move toward the middle, causing the straight rods 23 on both sides to further stretch the plate body 251 in the rolling plate 25 for adaptation. The multi-stage telescopic plates 24 and the rolling plate 25 always cooperate with the movement of the straight rods 23 and fill and block the gap between the main roller body 1 and the auxiliary roller body 3 to prevent broken objects from entering the interior and hindering the operation of the internal bidirectional screw 22 or multiple scissors fork parts 21.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A crushing roller for a crusher with adjustable spacing, characterized in that: The invention comprises a main roller body (1) and an auxiliary roller body (3) for rotating a crushing roller, wherein an adjusting member (2) for adjusting the spacing between crushing teeth (5) is arranged between the main roller body (1) and the auxiliary roller body (3), wherein the adjusting member (2) drives a scissor member (21) to deform through a built-in bidirectional lead screw (22), and is used to adjust the position of straight rods (23) at the intersections of the midpoints of the scissor member (21), wherein the straight rods (23) drive the crushing teeth (5) plugged at both ends to move. The main roller body (1) and the auxiliary roller body (3) are moved along the main roller body (1) and the auxiliary roller body (3); the scissor parts (21) are provided with a plurality of groups that are hinged and rotated with each other, and the midpoint intersection of the scissor parts (21) is pin-connected by a pin slide foot (211), and one end of the pin slide foot (211) slides in a slide groove (14) provided on the side wall of the main roller body (1); the side surfaces of the main roller body (1) and the auxiliary roller body (3) are combined by inserting a strip (4) in the notch (13) to form a complete crushing roller body.

2. A crushing roller for a crusher with adjustable spacing according to claim 1, characterized in that: One end of the pin slide (211) is fixedly connected to a straight rod (23), and retractable latches (231) are respectively provided at the upper and lower ends of the straight rod (23). The latches (231) are inserted into the limiting holes (51) on the inner wall of the crushing teeth (5) under the action of an internal spring (232).

3. A crushing roller for a crusher with adjustable spacing according to claim 1, characterized in that: The plurality of groups of scissor parts (21) are arranged in an odd number, and the intersection of the upper and lower ends of the group of scissor parts (21) located in the middle is pinned by a screw ring pin (212), and the upper and lower screw ring pins (212) are respectively screwed to the upper and lower sections of the bidirectional lead screw (22).

4. A crushing roller for a crusher with adjustable spacing according to claim 3, characterized in that: One end of the bidirectional lead screw (22) is fixedly connected to a rechargeable motor (221), the motor (221) is fixed on the main roller body (1), and a storage battery is arranged inside the main roller body (1).

5. The crushing roller for a crusher with adjustable spacing according to claim 1, characterized in that: Adjacent straight rods (23) are connected via multi-stage telescopic plates (24), and the straight rods (23) located on both sides are fixedly connected to two rolling plates (25) arranged on the side of the main roller body (1).

6. A crushing roller for a crusher with adjustable spacing according to claim 5, characterized in that: The plurality of multi-stage telescopic plates (24) and the rolling plates (25) are symmetrically arranged in two groups, one above the other, for blocking the gap between the main roller body (1) and the auxiliary roller body (3).

7. The crushing roller for a crusher with adjustable spacing according to claim 1, characterized in that: A convex strip (12) is fixedly connected to the other side of the main roller body (1), and the convex strip (12) is symmetrical with the insert strip (4) and corresponds to the notch on the inner wall of the crushing tooth (5).

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