Impact crusher rotor

Abstract

The utility model provides an impact crusher rotor which comprises a rotor body, a mounting groove is formed in the rotor body, a protrusion and a check block are arranged on one side of the mounting groove, a wedge-shaped block is arranged on the other side of the mounting groove, a plate hammer is mounted in the mounting groove, and the protrusion, the check block and the wedge-shaped block are matched with the plate hammer; the plate hammer comprises a V-shaped hammer body, hammer heads are arranged on the two sides of the hammer body, two rows of inlaying holes are formed in the top of each hammer head in the length direction, first wear-resisting rods are embedded in the inlaying holes in the two ends of the inner row in the length direction, and second wear-resisting rods are embedded in the inlaying holes in the middle of the inner row in the length direction. Third wear-resisting rods are embedded in the inlaying holes in the outer row, and the sectional dimensions of the first wear-resisting rods, the second wear-resisting rods and the third wear-resisting rods are sequentially increased. The rotor of the impact crusher is simple in structure and long in service life, and the overhaul and maintenance time is shortened.

Description

Technical Field

[0001] The present application relates to the technical field of crushers, and in particular to a rotor of an impact crusher. Background Art

[0002] Impact crushers are mainly used in cement and aggregate industries. Usually, the crusher has two impact plates and one grinding frame. This type of impact crusher has a high crushing ratio, uniform particle size distribution, cubic shape, and less needle-like content, which can meet the first-class product standards; high crushing efficiency, high output of single-machine equipment; equipped with advanced rotors, durable and long service life; equipped with hydraulic and electrical automatic control and adjustment systems, the distance between the rotor and the impact plate is easy to adjust, and the product particle size of the crusher can be adjusted at any time according to production conditions to meet different product requirements; reliable operation, simple and convenient maintenance.

[0003] Due to the large processing capacity of a single machine, the hammer on the rotor is severely worn, and the connection stability between the hammer and the rotor body is poor, resulting in a short service life of the rotor and a long overhaul and maintenance time. Therefore, there is an urgent need for an impact crusher rotor with a long service life. Utility Model Content

[0004] In view of this, the purpose of the present application is to propose an impact crusher rotor to solve the related problems mentioned in the background technology.

[0005] The present application provides an impact crusher rotor, comprising a rotor body, a mounting groove being provided on the rotor body, a protrusion and a stopper being provided on one side of the mounting groove, and a wedge block being provided on the other side, a plate hammer being installed in the mounting groove, and the protrusion, the stopper and the wedge block respectively cooperate with the plate hammer; the plate hammer comprises a V-shaped hammer body, and the two sides of the hammer body are hammer heads, and the top of each hammer head is provided with two rows of inlay holes along the length direction, the inlay holes at both ends of the inner row along the length direction are embedded with first wear-resistant rods, the inlay holes in the middle of the inner row along the length direction are embedded with second wear-resistant rods, and the inlay holes in the outer row are embedded with third wear-resistant rods, and the cross-sectional sizes of the first wear-resistant rod, the second wear-resistant rod and the third wear-resistant rod increase successively.

[0006] Furthermore, the angle between the top surface of the plate hammer and the radial direction of the rotor body is 78° to 90°.

[0007] Furthermore, a first limiting groove is provided at the middle of the inner side of the hammer body along the length direction, and the first limiting groove cooperates with the protrusion.

[0008] Furthermore, the cross-sectional shape of the first limiting groove is an isosceles trapezoid, and the included angle between the two hypotenuses of the isosceles trapezoid is 90°.

[0009] Furthermore, second limiting grooves are provided at both ends of the inner side of the hammer body along the length direction, the cross-sectional dimension of the second limiting groove is larger than the cross-sectional dimension of the first limiting groove, and the second limiting groove cooperates with the stopper.

[0010] Furthermore, an inclined surface is provided in the middle portion of the outer side of the hammer body, and the inclined surface matches the wedge block.

[0011] Furthermore, the inclined surface and the side wall of the first limiting groove form a wedge-shaped angle with an opening toward the hammer head.

[0012] Further, the length of the first wear-resistant rod is equal to the length of the second wear-resistant rod, and is greater than the length of the third wear-resistant rod.

[0013] Furthermore, the two rows of inlay holes are arranged in a staggered manner.

[0014] As can be seen from the above, the impact crusher rotor provided in the present application includes a rotor body, a mounting groove is provided on the rotor body, a protrusion and a stopper are provided on one side of the mounting groove, and a wedge block is provided on the other side, a plate hammer is installed in the mounting groove, and the protrusion, the stopper and the wedge block are respectively matched with the plate hammer to improve the stability of the plate hammer installation; the plate hammer includes a V-shaped hammer body, and the two sides of the hammer body are hammer heads, and the two hammer heads can be used for crushing and wear and consumption, thereby improving the service life of the plate hammer; the top of each hammer head is provided with two rows of inlay holes along the length direction, and the inlay holes at both ends of the inner row along the length direction are embedded with a first The wear-resistant rod has a second wear-resistant rod embedded in the inlay holes in the middle of the inner row along the length direction, and the third wear-resistant rod is embedded in the inlay holes in the outer row. The wear resistance of the hammer body is improved by embedding the wear-resistant rods, the service life is improved, and the workload of on-site inspection and maintenance is greatly reduced; the cross-sectional sizes of the first wear-resistant rod, the second wear-resistant rod and the third wear-resistant rod increase successively, and the wear-resistant rods at the inner ends are the smallest in size, which reduces the risk of falling off; the wear-resistant rods in the outer row are the largest in size, which increases the wear-resistant volume of the hammer body; the rotor of the impact crusher has a simple structure, a long service life, and shortens the time for inspection and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A side view of a rotor of an impact crusher in an embodiment of the present application;

[0017] Figure 2 for Figure 1The enlarged structure diagram at C in the middle;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the plate hammer in the embodiment of the present application;

[0019] Figure 4 A side view of a plate hammer in an embodiment of the present application;

[0020] Figure 5 This is a front view of the hammer head in the embodiment of the present application;

[0021] Figure 6 This is a front view of the wedge block in the embodiment of the present application.

[0022] Figure numerals: 1, hammer body; 1-1, hammer head; 1-2, inlay hole; 1-3, first limiting groove; 1-4, second limiting groove; 1-5, inclined surface; 2, first wear-resistant rod; 3, second wear-resistant rod; 4, third wear-resistant rod; 5, rotor body; 5-1, mounting groove; 5-2, protrusion; 5-3, stop block; 5-4, wedge block; 5-5, surfacing layer. DETAILED DESCRIPTION

[0023] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] Impact crushers are mainly used in cement and aggregate industries. Usually, the crusher has two impact plates and one grinding frame. This type of impact crusher has a high crushing ratio, uniform particle size distribution, cubic shape, and less needle-like content, which can meet the first-class product standards; high crushing efficiency, high output of single-machine equipment; equipped with advanced rotors, durable and long service life; equipped with hydraulic and electrical automatic control and adjustment systems, the distance between the rotor and the impact plate is easy to adjust, and the product particle size of the crusher can be adjusted at any time according to production conditions to meet different product requirements; reliable operation, simple and convenient maintenance.

[0026] Due to the large processing capacity of a single device, the wear of the plate hammer on the rotor is also serious, and the connection stability between the plate hammer and the rotor body is also poor. For example, most of the current plate hammers are rectangular in shape, and high manganese steel surface is welded to increase the service life, but the weld layer is easy to fall off. After the weld layer is worn off, on-site welding is very difficult. If the welding is not done in time, the parent body will wear too quickly. In addition, the existing matching method between the plate hammer and the rotor body is not tight enough, and the plate hammer is easy to fall off, resulting in a short service life of the rotor and a long inspection and maintenance time. Therefore, there is an urgent need for an impact crusher rotor with a long service life.

[0027] Below, through specific embodiments and in combination with the attached Figures 1 to 6 To describe the technical solution of this application in detail.

[0028] In some embodiments of the present application, a rotor for an impact crusher is provided, such as Figures 1 to 5 As shown, it includes a rotor body 5, on which is provided a mounting groove 5-1, one side of the mounting groove 5-1 is provided with a protrusion 5-2 and a stopper 5-3, and the other side is provided with a wedge block 5-4, a plate hammer is installed in the mounting groove 5-1, and the protrusion 5-2, the stopper 5-3 and the wedge block 5-4 are respectively matched with the plate hammer; the plate hammer includes a V-shaped hammer body 1, both sides of the hammer body 1 are hammer heads 1-1, and the top of each hammer head 1-1 is provided with two rows of inlay holes 1-2 along the length direction, the inlay holes 1-2 at both ends of the inner row along the length direction are embedded with first wear-resistant rods 2, the inlay holes 1-2 in the middle of the inner row along the length direction are embedded with second wear-resistant rods 3, and the inlay holes 1-2 in the outer row are embedded with third wear-resistant rods 4, and the cross-sectional sizes of the first wear-resistant rod 2, the second wear-resistant rod 3 and the third wear-resistant rod 4 increase successively.

[0029] like Figure 1 As shown, the rotor body 5 is provided with six mounting grooves 5-1, and a plate hammer is installed in each mounting groove 5-1. Figure 2 As shown, a protrusion 5-2 and a stopper 5-3 are provided on one side of the mounting groove 5-1, and the protrusion 5-2 is in the shape of a long strip; there are two stoppers 5-3, which can be adjusted by bolts; a wedge block 5-4 is provided on the other side of the mounting groove 5-1, which can be adjusted by bolts, such as Figure 6 As shown, a plurality of wedge blocks 5-4 can be provided; the protrusion 5-2, the stop block 5-3 and the wedge block 5-4 are respectively matched with the plate hammer to improve the stability of the plate hammer installation.

[0030] The blow bar is an integral casting with mirror-symmetrical longitudinal and transverse sections, which can be turned over for use. Figure 4 As shown, the hammer body 1 is V-shaped, and the two sides of the hammer body 1 are hammer heads 1-1. The two hammer heads 1-1 can be used for crushing and wear and consumption, thereby increasing the service life of the plate hammer.

[0031] like Figure 3 As shown, the L direction is the length direction, and the top of each hammer head 1-1 is provided with two rows of inlay holes 1-2 along the length direction. Figure 5 As shown, the inlay holes 1-2 at both ends of the inner row along the length direction are embedded with the first wear-resistant rod 2, the inlay holes 1-2 in the middle of the inner row along the length direction are embedded with the second wear-resistant rod 3, and the inlay holes 1-2 in the outer row are embedded with the third wear-resistant rod 4. The material of the wear-resistant rods is, for example, cemented carbide, and the material can be the same. By embedding the wear-resistant rods, the wear resistance of the hammer body 1 is improved, the service life is improved, and the workload of on-site inspection and maintenance is greatly reduced.

[0032] like Figure 5 As shown, the cross-sectional sizes of the first wear-resistant rod 2, the second wear-resistant rod 3 and the third wear-resistant rod 4 increase successively. The wear-resistant rods at the inner ends are the smallest in size to reduce the risk of falling off; the row of wear-resistant rods located on the outer side is the largest in size to increase the wear-resistant volume of the hammer body 1.

[0033] The impact crusher rotor has a simple structure and a long service life, which shortens the time for overhaul and maintenance.

[0034] In some embodiments, Figure 1 As shown, the angle between the top surface of the blow hammer and the radial direction of the rotor body 5 is 78° to 90°.

[0035] like Figure 1 As shown, the angle between the top surface of the plate hammer and the radial direction of the rotor body 5 is angle B in the figure, and the angle is 78° to 90°, for example, 78°, 85° or 90°, etc., without specific limitation, to ensure that the plate hammer always strikes the material in the positive direction with high striking efficiency.

[0036] In some embodiments, Figure 3 and Figure 4 As shown, a first limiting groove 1-3 is provided in the middle of the inner side of the hammer body 1 along the length direction, and the first limiting groove 1-3 cooperates with the protrusion 5-2.

[0037] like Figure 3 As shown, a first limiting groove 1-3 is provided in the middle of the inner side of the hammer body 1 along the length direction. Figure 2 As shown, the first limiting groove 1-3 cooperates with the protrusion 5-2 to play a role in radial positioning.

[0038] In some embodiments, Figure 4 As shown, the cross-sectional shape of the first limiting groove 1 - 3 is an isosceles trapezoid, and the included angle between the two hypotenuses of the isosceles trapezoid is 90°.

[0039] like Figure 4 As shown, the cross-sectional shape of the first limiting groove 1-3 is an isosceles trapezoid, and the angle between the two hypotenuses of the isosceles trapezoid is 90°, so as to avoid the angle being too large, so that the hammer is not easily stuck in the rotor body 5, and to avoid the angle being too small, so that it is difficult to process and manufacture.

[0040] In some embodiments, Figure 3 and Figure 4 As shown, the inner side of the hammer body 1 is provided with second limiting grooves 1-4 at both ends along the length direction, the cross-sectional size of the second limiting groove 1-4 is larger than the cross-sectional size of the first limiting groove 1-3, and the second limiting groove 1-4 cooperates with the stopper 5-3.

[0041] like Figure 3 As shown, the inner side of the hammer body 1 is provided with second limiting grooves 1-4 at both ends along the length direction, and the cross-sectional size of the second limiting groove 1-4 is larger than the cross-sectional size of the first limiting groove 1-3. Figure 2 As shown, the second limiting groove 1-4 cooperates with the stopper 5-3 to play the role of axial positioning.

[0042] In some embodiments, Figure 3 and Figure 4 As shown, an inclined surface 1-5 is provided in the middle part of the outer side of the hammer body 1, and the inclined surface 1-5 cooperates with the wedge block 5-4.

[0043] like Figure 3 As shown, the middle part of the outer side of the hammer body 1 is provided with an inclined surface 1-5, such as Figure 1 As shown, the inclined surface 1-5 cooperates with the wedge block 5-4 to play a role in radial positioning. The first limiting groove 1-3, the second limiting groove 1-4 and the inclined surface 1-5 respectively cooperate with the protrusion 5-2, the stop block 5-3 and the wedge block 5-4 of the rotor body 5 to clamp the plate hammer in the installation groove 5-1 of the rotor body 5.

[0044] In some embodiments, Figure 4 As shown, the inclined surface 1-5 and the side wall of the first limiting groove 1-3 form a wedge-shaped angle opening toward the hammer head 1-1.

[0045] like Figure 4As shown, the inclined surface 1-5 and the side wall of the first limiting groove 1-3 form a wedge-shaped angle with an opening toward the hammer head 1-1, namely, angle A in the figure. During the operation of the plate hammer, it will be thrown outward under the action of centrifugal force. By forming the wedge-shaped angle, the fit between the plate hammer and the rotor body 5 is tightened, and the impact effect on the material is better.

[0046] In some embodiments, Figure 4 As shown, the length of the first wear-resistant rod 2 is equal to the length of the second wear-resistant rod 3 , and is greater than the length of the third wear-resistant rod 4 .

[0047] like Figure 4 As shown, the length of the first wear-resistant rod 2 is equal to the length of the second wear-resistant rod 3, and is greater than the length of the third wear-resistant rod 4. The length of the outer row of wear-resistant rods is set to be greater than the length of the inner row of wear-resistant rods to avoid stress concentration and weaken the strength of the hammer body 1; the shape and size of the inlay holes 1-2 are adapted to the shape and size of the corresponding wear-resistant rods.

[0048] In some embodiments, Figure 5 As shown, the two rows of inlay holes 1-2 are arranged in a staggered manner.

[0049] like Figure 5 As shown, the two rows of inlay holes 1-2 are staggered, that is, the two rows of wear-resistant rods are staggered, so as to prevent the wear-resistant rods from being in the same section and falling off, or causing stress concentration and weakening the strength of the hammer.

[0050] In some embodiments, Figure 6 As shown, the rotor body 5 includes a plurality of rotating disks arranged along the axial direction. Figure 2 As shown, both sides of each of the turntables are provided with a build-up layer 5 - 5 , and the build-up layer 5 - 5 is arranged close to the wedge block 5 - 4 to prevent the material from wearing the rotor body 5 .

[0051] The description of the present application is given for the purpose of illustration and description, and is not intended to be exhaustive or to limit the present application to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present application, and to enable those of ordinary skill in the art to understand the present application and thus design various embodiments with various modifications suitable for specific purposes.

[0052] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may also be combined, and there are many other variations of different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

Claims

1. An impact crusher rotor, characterized in that: It comprises a rotor body, a mounting groove is provided on the rotor body, a protrusion and a stopper are provided on one side of the mounting groove, a wedge-shaped block is provided on the other side, a plate hammer is installed in the mounting groove, and the protrusion, the stopper and the wedge-shaped block are matched with the plate hammer respectively; The plate hammer includes a V-shaped hammer body, with hammer heads on both sides of the hammer body. Two rows of inlay holes are provided on the top of each hammer head along the length direction. The inlay holes at both ends of the inner row along the length direction are embedded with first wear-resistant rods, the inlay holes in the middle of the inner row along the length direction are embedded with second wear-resistant rods, and the inlay holes in the outer row are embedded with third wear-resistant rods. The cross-sectional sizes of the first wear-resistant rod, the second wear-resistant rod and the third wear-resistant rod increase successively.

2. The impact crusher rotor according to claim 1, characterized in that: The included angle between the top surface of the plate hammer and the radial direction of the rotor body is 78° to 90°.

3. The impact crusher rotor according to claim 1, characterized in that: A first limiting groove is provided at the middle of the inner side of the hammer body along the length direction, and the first limiting groove matches with the protrusion.

4. The impact crusher rotor according to claim 3, characterized in that: The cross-sectional shape of the first limiting groove is an isosceles trapezoid, and the included angle between the two hypotenuses of the isosceles trapezoid is 90°.

5. The impact crusher rotor according to claim 4, characterized in that: Second limiting grooves are provided at both ends of the inner side of the hammer body along the length direction, the cross-sectional dimension of the second limiting groove is larger than the cross-sectional dimension of the first limiting groove, and the second limiting groove cooperates with the stopper.

6. The impact crusher rotor according to claim 3, characterized in that: An inclined surface is provided at the middle portion of the outer side of the hammer body, and the inclined surface matches the wedge block.

7. The impact crusher rotor according to claim 6, characterized in that: The inclined surface and the side wall of the first limiting groove form a wedge-shaped angle with an opening toward the hammer head.

8. The impact crusher rotor according to claim 1, characterized in that: The length of the first wear-resistant rod is equal to the length of the second wear-resistant rod, and is greater than the length of the third wear-resistant rod.

9. The impact crusher rotor according to claim 1, characterized in that: The two rows of inlay holes are arranged in a staggered manner.

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