Wear-resistant easy-to-replace pendulum bob structure of hammer crusher

Abstract

According to the wear-resistant easy-to-replace pendulum bob structure of the hammer crusher provided by the utility model, the rotating shaft, the hammer head and the hammer handle are integrally formed, and the bulges are arranged on the two side surfaces of the hammer head, so that in the rotary crushing process of a crushing hammer, the bulges on the two side surfaces of the hammer head are in direct contact with materials firstly, and after the hammer head is used for a long time and the bulges are abraded, the hammer head cannot be damaged; the hammer head is in contact with the material, so that the wear resistance of the breaking hammer is enhanced; the rotating shaft and other breaking hammer structures are integrally formed, so that when a single breaking hammer is replaced, only the arc-shaped baffles on the two sides of the position, corresponding to the breaking hammer needing to be replaced, of the rotating shaft need to be detached from the arc-shaped plates for replacement, the whole pendulum bob structure does not need to be detached like a traditional mode, and more convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to a wear-resistant and easily replaceable pendulum structure of a hammer crusher, belonging to the technical field of crushers. Background Art

[0002] A hammer crusher is a device commonly used to crush materials of various hardness and brittleness. It uses a breaker hammer to impact and crush materials, and is commonly used to crush materials such as rocks, ores, coal, cement, etc. The working principle of a hammer crusher is to hit and crush the materials through a breaker hammer installed on a high-speed rotating rotor, and then separate the crushed materials through a screen plate. However, in the prior art, the breaker hammers of hammer crushers are all connected to the main shaft by opening an axial hole on the hammer handle of the breaker hammer, so that multiple breaker hammers are connected to the main shaft by using the same hammer shaft to be movably connected between the hammer discs. When a single breaker hammer is severely worn and needs to be replaced, it is necessary to disassemble the entire pendulum structure for replacement, which makes the replacement of the breaker hammer more troublesome. At the same time, the breaker hammer is inserted by opening an axial hole on the hammer handle, so that the axial hole of the breaker hammer is easily worn, which reduces the wear resistance of the breaker hammer. Therefore, the utility model proposes a wear-resistant and easy-to-replace pendulum structure of a hammer crusher to solve the above problems. Utility Model Content

[0003] Based on the above background, the purpose of the utility model is to provide a wear-resistant and easy-to-replace pendulum structure of a hammer crusher to solve the problems in the background technology.

[0004] The utility model provides the following technical solutions:

[0005] A wear-resistant and easily replaceable pendulum structure of a hammer crusher comprises a main shaft, a mounting sleeve is sleeved at the central position of the main shaft, a plurality of fixing rings integrally formed with the mounting sleeve are equidistantly arranged on the outer cylindrical surface of the mounting sleeve, a plurality of first through holes are distributed in a circumferential shape on the fixing ring, a hammer disc is detachably connected to the right side surface of the fixing ring, and a plurality of crushing hammers are detachably connected to the adjacent two hammer discs in a circumferential shape;

[0006] A breaker hammer comprises a hammer handle, one end of which is provided with a hammer head, a rotating shaft is provided on the left and right side surfaces of the hammer handle away from the hammer head, and protrusions are provided on the front and rear side surfaces of the hammer head. The hammer handle, hammer head, rotating shaft and protrusions are integrally formed.

[0007] Preferably, the hammer disc is composed of two semicircular arc plates, a group of second through holes are provided on the surface of the arc plate near the mounting sleeve, a first bolt is passed through the second through hole, the first bolt passes through the first through hole while passing through the second through hole, a first nut is threadedly connected to the part of the first bolt passing through the first through hole, and the arc plate is detachably connected to the fixing ring through the threaded connection of the first bolt and the first nut.

[0008] Preferably, a group of notches are provided on the left and right side surfaces of the arc plate, the notches are opened colinearly with the second through hole, and threaded holes penetrating the arc plate are provided on both sides of the notches on the arc plate, and a group of notches penetrate the arc plate at one end close to the outer arc surface of the arc plate.

[0009] Preferably, the rotating shafts on both side surfaces of the hammer handle are respectively located in the notches on the adjacent surfaces of two adjacent arc-shaped plates, and arc-shaped baffles are provided at the notch positions on both side surfaces of the arc-shaped plates, and a clamping block is provided at the corresponding notch position on the side of the arc-shaped baffle close to the arc-shaped plate, and an arc groove is provided on the side of the clamping block close to the rotating shaft, and third through holes are provided on both sides of the clamping block on the arc-shaped baffle, and a second bolt is passed through the third through hole, and the second bolt is threadedly connected to the threaded hole, and the arc-shaped baffles are threadedly connected to the threaded hole by the second bolt, so that they can be detachably connected to the arc-shaped plate, and the rotating shaft is clamped in the notch through the arc-shaped baffle, and the rotating shaft can rotate in the groove.

[0010] Preferably, a keyway is provided at the central position of the main shaft, a clamping groove is opened on the inner arc surface of the mounting sleeve, a positioning key is provided in the keyway, and the positioning key is located in the keyway and is clamped in the clamping groove.

[0011] Preferably, both ends of the mounting sleeve on the main shaft are provided with retaining ring grooves, and retaining rings are provided in the retaining grooves. The mounting sleeve is fixed on the main shaft by the retaining rings so that it cannot move left and right on the main shaft.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model discloses a wear-resistant and easily replaceable pendulum hammer structure for a hammer crusher. The rotating shaft, hammer head and hammer handle are integrally formed, and protrusions are arranged on both side surfaces of the hammer head. During the rotating crushing process of the breaker hammer, the protrusions on both side surfaces of the hammer head will first directly contact the material. When the hammer head is used for a long time and the protrusions are worn, the hammer head will contact the material, thereby enhancing the wear resistance of the breaker hammer. The rotating shaft is integrally formed with other breaker hammer structures, so that when replacing a single breaker hammer, it is only necessary to remove the arc-shaped baffles on both sides of the rotating shaft position corresponding to the breaker hammer to be replaced from the arc-shaped plate for replacement. There is no need to disassemble the entire pendulum hammer structure as in the traditional way. This is more convenient and quick.

[0014] The utility model discloses a wear-resistant and easily replaceable pendulum structure of a hammer crusher. The hammer disc is arranged into two semicircular arc plates and fixed on a fixing ring by threaded connection of a first bolt and a first nut. When one of the multiple hammer discs of the pendulum structure provided by the utility model is seriously damaged and needs to be replaced, it is only necessary to unscrew the first bolt and the first nut, without disassembling the entire pendulum structure, thereby making the replacement of the hammer disc more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the main shaft structure of the utility model;

[0018] Figure 3 It is a schematic diagram of the installation sleeve structure of the utility model;

[0019] Figure 4 It is a schematic diagram of the arc plate structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of a breaker hammer of the utility model;

[0021] Figure 6 It is a schematic diagram of the arc baffle structure of the utility model.

[0022] In the figure: 1, main shaft; 2, mounting sleeve; 3, fixing ring; 4, first through hole; 5, hammer plate; 51, arc plate; 52, second through hole; 53, first bolt; 6, breaker hammer; 61, hammer handle; 62, hammer head; 63, rotating shaft; 64, protrusion; 7, notch; 8, threaded hole; 9, arc baffle; 10, clamping block; 11, arc groove; 12, third through hole; 13, second bolt; 14, keyway; 15, clamping groove; 16, positioning key; 17, retaining ring groove; 18, retaining ring. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described in detail below through specific embodiments and in combination with the accompanying drawings. It should be understood that the implementation of the utility model is not limited to the following embodiments, and any form of modification and / or change made to the utility model will fall within the protection scope of the utility model.

[0024] In the present invention, unless otherwise specified, all parts and percentages are weight units, and the equipment and raw materials used can be purchased from the market or are commonly used in the field. The methods in the following embodiments, unless otherwise specified, are conventional methods in the field. The components or equipment in the following embodiments, unless otherwise specified, are universal standard parts or components known to those skilled in the art, and their structures and principles are known to those skilled in the art through technical manuals or conventional experimental methods.

[0025] The following is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. In the following detailed description, for ease of explanation, many specific details are described to provide a comprehensive understanding of the embodiments of the present invention. However, one or more embodiments may also be implemented by those skilled in the art without these specific details.

[0026] like Figure 1-Figure 6 As shown, a wear-resistant and easily replaceable pendulum structure of a hammer crusher comprises a main shaft 1, a mounting sleeve 2 is sleeved at the central position of the main shaft 1, a plurality of fixing rings 3 integrally formed with the mounting sleeve 2 are equidistantly arranged on the outer cylindrical surface of the mounting sleeve 2, a plurality of first through holes 4 are distributed in a circumferential shape on the fixing ring 3, a hammer disc 5 is detachably connected to the right side surface of the fixing ring 3, a plurality of breaking hammers 6 are detachably connected in a circumferential shape between two adjacent hammer discs 5; the breaking hammer 6 comprises a hammer handle 61, a hammer head 62 is provided at one end of the hammer handle 61, a rotating shaft 63 is provided on the left and right side surfaces of the hammer handle 61 at a position away from the hammer head 62, protrusions 64 are provided on the front and rear side surfaces of the hammer head 62, and the hammer handle 61, the hammer head 62, the rotating shaft 63 and the protrusion 64 are integrally formed. The rotating shafts 63 on both side surfaces of the hammer handle 61 are respectively located in the notches 7 on the adjacent surfaces of the two adjacent arc-shaped plates 51. The notches 7 on both side surfaces of the arc-shaped plates 51 are provided with arc-shaped baffles 9. A clamping block 10 is provided on the side of the arc-shaped baffle 9 close to the arc-shaped plate 51 at the position corresponding to the notch 7. An arc groove 11 is provided on the side of the clamping block 10 close to the rotating shaft 63. Third through holes 12 are provided on both sides of the clamping block 10 on the arc-shaped baffle 9. A second bolt 13 is passed through the third through hole 12. The second bolt 13 is threadedly connected to the threaded hole 8. The arc-shaped baffles 9 are detachably connected to the arc-shaped plates 51 through the threaded connection between the second bolt 13 and the threaded hole 8. The rotating shaft 63 is clamped in the notch 7 through the arc-shaped baffle 9, and the rotating shaft 63 can rotate in the groove.

[0027] In the above technical scheme, the rotating shaft 63, the hammer head 62 and the hammer handle 61 are integrally formed, and protrusions 64 are provided on both side surfaces of the hammer head 62. During the rotating crushing process of the breaker 6, the protrusions 64 on both side surfaces of the hammer head 62 will first come into direct contact with the material. When the hammer head 62 is used for a long time and the protrusions 64 are worn, the hammer head 62 will come into contact with the material, thereby enhancing the wear resistance of the breaker 6. The rotating shaft 63 is integrally formed with other breaker hammer 6 structures, so that when replacing a single breaker hammer 6, it is only necessary to remove the arc-shaped baffle plates 9 on both sides of the rotating shaft 63 corresponding to the position of the breaker hammer 6 to be replaced from the arc plate 51, without the need to disassemble the entire pendulum structure as in the traditional way, which is more convenient and quick.

[0028] like Figure 1-Figure 6 As shown, in the present invention, the hammer plate 5 is composed of two semicircular arc plates 51, and a group of second through holes 52 are provided on the surface of the arc plate 51 near the mounting sleeve 2, and a first bolt 53 is penetrated in the second through hole 52. The first bolt 53 penetrates the first through hole 4 while penetrating the second through hole 52, and a first nut is threadedly connected to the first through hole 4. The arc plate 51 is detachably connected to the fixing ring 3 through the threaded connection of the first bolt 53 and the first nut. A group of notches 7 are provided on both left and right side surfaces of the arc plate 51, and the notches 7 are opened in the same line as the second through hole 52, and threaded holes 8 penetrating the arc plate 51 are provided on both sides of the notches 7 on the arc plate 51, and a group of notches 7 penetrate the arc plate 51 near one end of the outer arc surface of the arc plate 51.

[0029] In the above technical solution, by setting the hammer disc 5 as two semicircular arc plates 51 and fixing them on the fixing ring 3 by means of the threaded connection of the first bolt 53 and the first nut, once one of the hammer discs 5 among the multiple hammer discs 5 of the pendulum structure provided by the utility model is damaged and needs to be replaced, it is only necessary to unscrew the first bolt 53 and the first nut, without disassembling the entire pendulum structure, so that the replacement of the hammer disc 5 is more convenient.

[0030] like Figure 1-Figure 3 As shown, in the present invention, a key slot 14 is provided at the center of the main shaft 1, a clamping slot 15 is provided on the inner arc surface of the mounting sleeve 2, a positioning key 16 is provided in the key slot 14, and the positioning key 16 is located in the key slot 14 and clamped in the clamping slot 15. Snap ring grooves 17 are provided at both ends of the mounting sleeve 2 on the main shaft 1, and a clamping ring 18 is provided in the clamping slot 15. The mounting sleeve 2 is fixed on the main shaft 1 by the clamping ring 18 so that it cannot move left and right on the main shaft 1.

[0031] In the above technical solution, the main shaft 1 can be protected from damage by providing the mounting sleeve 2, and the instability of the mounting sleeve 2 on the main shaft 1 can be avoided by providing the positioning key 16 and the retaining ring 18, so that the utility model can operate normally in the crusher.

[0032] The working principle of the wear-resistant and easy-to-replace pendulum structure of the hammer crusher of the utility model is:

[0033] When replacing the breaker hammer 6 (at this time, the pendulum structure provided in the utility model is installed inside the hammer crusher cavity), the main shaft 1 is turned to rotate in the crusher cavity so that the breaker hammer 6 to be replaced is exactly at the feed port position of the hammer crusher, and then the detachable arc baffle 9 on the arc plate 51 at the position of the rotating shaft 63 of the breaker hammer 6 is threadedly connected with the threaded hole 8 by the second bolt 13, and then the breaker hammer 6 is taken out from the groove 7 of the two adjacent arc plates 51, and a new breaker hammer 6 is taken and placed in the groove 7 from which the old breaker hammer 6 is removed, and finally the arc baffle 9 is reinstalled on the arc plate 51 by threading the second bolt 13 with the threaded hole 8 to complete the replacement of the breaker hammer 6.

[0034] When the hammer disc 5 is damaged and needs to be replaced, it is only necessary to unscrew the first bolt 53 and the first nut corresponding to the position of the hammer disc 5 that needs to be replaced, and then replace the new hammer disc 5 by screwing on the first bolt 53 and the second bolt 13. There is no need to disassemble the entire pendulum structure, making the replacement of the hammer disc 5 more convenient.

[0035] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A wear-resistant and easily replaceable pendulum structure of a hammer crusher, characterized in that: The invention comprises a main shaft (1), wherein a mounting sleeve (2) is sleeved at the central position of the main shaft (1), a plurality of fixing rings (3) formed integrally with the mounting sleeve (2) are equidistantly arranged on the outer cylindrical surface of the fixing sleeve (2), a plurality of first through holes (4) are distributed in a circumferential shape on the fixing ring (3), a hammer disc (5) is detachably connected to the right side surface of the fixing ring (3), and a plurality of breaking hammers (6) are detachably connected in a circumferential shape between two adjacent hammer discs (5); A breaker hammer (6): comprising a hammer handle (61), one end of which is provided with a hammer head (62), a rotating shaft (63) being provided on both left and right side surfaces of the hammer handle (61) at positions away from the hammer head (62), and a protrusion (64) being provided on both front and rear side surfaces of the hammer head (62), and the hammer handle (61), the hammer head (62), the rotating shaft (63) and the protrusion (64) being integrally formed.

2. The wear-resistant and easily replaceable pendulum structure of a hammer crusher according to claim 1, characterized in that: The hammer plate (5) is composed of two semicircular arc plates (51). A group of second through holes (52) are provided on the surface of the arc plate (51) near the mounting sleeve (2). First bolts (53) are inserted into the second through holes (52). The first bolts (53) penetrate the first through holes (4) while penetrating the second through holes (52). A first nut is threadedly connected to the portion of the first bolt (53) passing through the first through hole (4). The arc plate (51) is detachably connected to the fixing ring (3) by threading the first bolts (53) and the first nut.

3. The wear-resistant and easily replaceable pendulum structure of a hammer crusher according to claim 2, characterized in that: A group of notches (7) are provided on both left and right side surfaces of the arc-shaped plate (51), the notches (7) and the second through hole (52) are arranged colinearly, and threaded holes (8) penetrating the arc-shaped plate (51) are provided on both sides of the notches (7) on the arc-shaped plate (51), and one end of a group of notches (7) close to the outer arc surface of the arc-shaped plate (51) penetrates the arc-shaped plate (51).

4. The wear-resistant and easily replaceable pendulum structure of a hammer crusher according to claim 3, characterized in that: The rotating shafts (63) on both side surfaces of the hammer handle (61) are respectively located in the notches (7) on the adjacent surfaces of the two adjacent arc-shaped plates (51); the notches (7) on both side surfaces of the arc-shaped plates (51) are both provided with arc-shaped baffles (9); a clamping block (10) is provided on a side of the arc-shaped baffle (9) close to the arc-shaped plates (51) at a position corresponding to the notch (7); an arc groove (11) is provided on a side of the clamping block (10) close to the rotating shaft (63); and the clamping block on the arc-shaped baffle (9) is provided with a plurality of arc grooves (12). (10) Both sides are provided with third through holes (12), and second bolts (13) are inserted into the third through holes (12), and the second bolts (13) are threadedly connected to the threaded holes (8), and the arc-shaped baffles (9) are detachably connected to the arc-shaped plate (51) through the threaded connection between the second bolts (13) and the threaded holes (8), and the rotating shaft (63) is clamped in the slot (7) through the arc-shaped baffles (9), and the rotating shaft (63) can rotate in the slot.

5. The wear-resistant and easily replaceable pendulum structure of a hammer crusher according to claim 4, characterized in that: A key slot (14) is provided at the central position of the main shaft (1), a clamping slot (15) is provided on the inner arc surface of the mounting sleeve (2), a positioning key (16) is provided in the key slot (14), and the positioning key (16) is located in the key slot (14) and is clamped in the clamping slot (15).

6. The wear-resistant and easily replaceable pendulum structure of a hammer crusher according to claim 5, characterized in that: Snap ring grooves (17) are provided at both ends of the mounting sleeve (2) on the main shaft (1), and snap rings (18) are provided in the snap ring grooves (15). The mounting sleeve (2) is fixed on the main shaft (1) by the snap rings (18) so that it cannot move left or right on the main shaft (1).

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