Efficient crushing sand making machine

Abstract

The utility model relates to an efficient crushing sand making machine which comprises a barrel, a main shaft is arranged in the barrel, a plurality of rotors are arranged on the main shaft in the axial direction of the main shaft, each rotor comprises a rotor frame and a hammer head, the rotor frames are assembled on the main shaft, the hammer heads are connected to the rotor frames through bolts, and the upper end face and the lower end face of each rotor frame are planes. The lower end face of the rotor frame is in contact with the upper end face of the next adjacent rotor frame so as to eliminate the interval between the two rotor frames. According to the efficient crushing sand making machine, the upper end face and the lower end face of each rotor frame are designed to be of a plane structure, so that the occupied space in the axial direction is reduced, only three rotor frames can be installed in the same barrel originally, four rotor frames can be installed in the same barrel now, one more stage of crushing is achieved, and the crushing effect is improved; the planes of the upper rotor frame and the lower rotor frame are in contact fit, so that materials can be prevented from entering the cavity from the interval between the adjacent rotor frames.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand making machine technical field, concretely relates to a kind of high-efficiency crushing sand making machine. BACKGROUND

[0002] Sand making machine is a kind of equipment for crushing large block material into sand, which is widely used in medium crushing and fine crushing of various hard and brittle materials such as rock, abrasive and refractory material. For example, the vertical sand making machine disclosed in the utility model patent with the authorization announcement No. CN 206587840U includes a support, a cylinder and a driving device. The cylinder and the driving device are arranged on the support. The upper and lower ends of the cylinder are respectively provided with a feeding port and a discharging port. A main shaft with a rotating axis extending in the up-down direction is arranged in the cylinder. A back plate is arranged on the inner wall of the cylinder. Three rotors are arranged on the main shaft in the axial direction of the main shaft. Each rotor is arranged in the axial direction of the main shaft. Figure 2 As can be clearly seen from the description and drawings of the above-mentioned vertical sand making machine, there is a gap between the upper and lower adjacent rotor frames. A part of the crushed stones will enter the gap instead of falling directly from the gap between the rotor and the cylinder. Moreover, the part of the rotor frame for connecting the hammer heads is also a hollow structure with a hole penetrating through the upper and lower parts. Therefore, the crushed stones entering the gap between the upper and lower adjacent rotor frames will also enter the hollow structure and wear the rotor frame with the rotation of the rotor frame. In addition, it will also cause the imbalance of the rotor frame. SUMMARY

[0003] The utility model aims to provide a kind of high-efficiency crushing sand making machine, solve the above-mentioned problems existing in the rotor structure at present.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] A kind of high-efficiency crushing sand making machine, including cylinder, main shaft is arranged in the cylinder, the main shaft is provided with several rotors in the axial direction thereof, the rotor includes rotor frame and hammer head, the rotor frame is assembled on the main shaft, the hammer head is connected on the rotor frame by bolt, the upper end surface and the lower end surface of the rotor frame are both plane, the lower end surface of the rotor frame is in contact with the upper end surface of the adjacent next rotor frame to eliminate the gap between them.

[0006] Further, the rotor frame includes a rotation-stopping assembly portion and a mounting portion located on the periphery of the rotation-stopping assembly portion. The rotation-stopping assembly portion is sleeved on the main shaft. The mounting portion is spaced apart by four. The hammer head is connected to the mounting portion of the rotor frame by a bolt.

[0007] Further, the mounting portion has a mounting surface perpendicular to the rotation direction of the rotor, a plurality of convex strips are arranged on the mounting surface in a vertical direction, the hammer head is provided with a plurality of recesses matched with the convex strips, the convex strips are circular arc convex strips, and the recesses are circular arc recesses.

[0008] Further, the mounting portion has a mounting surface perpendicular to the rotation direction of the rotor, a plurality of convex strips are arranged on the mounting surface in a vertical direction, the hammer head is provided with a plurality of recesses matched with the convex strips, the convex strips are circular arc convex strips, and the recesses are circular arc recesses.

[0009] Further, a bolt hole is vertically arranged on the mounting surface, the bolt hole is a long hole, and the length direction of the bolt hole is along the arrangement direction of the convex strips.

[0010] Further, the rotor frame is sequentially provided with four rotor frames from top to bottom, and is defined as a first rotor frame, a second rotor frame, a third rotor frame and a fourth rotor frame.

[0011] Further, the first rotor frame, the second rotor frame, the third rotor frame and the fourth rotor frame are all hollow structures, and the lower end surface of the fourth rotor frame is a closed surface.

[0012] Further, the upper side of the cylinder body is provided with a feeding hopper for feeding into the cylinder body, the feeding hopper is a reverse U-shaped structure, the upper end of the main shaft extends out of the cylinder body and is connected with a pulley, the pulley is in transmission connection with the upper end of the main shaft through a sleeve, and the pulley is located in the reverse U-shaped structure.

[0013] The utility model discloses a high -efficient broken sand making machine has the advantages of the following:

[0014] The utility model discloses a high -efficient broken sand making machine has the advantages of the following: BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of a high -efficient broken sand making machine of the utility model;

[0016] Figure 2 It is a sectional view of a high -efficient broken sand making machine of the utility model;

[0017] Figure 3 It is a perspective view of a first rotor frame;

[0018] Figure 4 is a schematic view of the first rotor holder and the material blocking plate after cooperation;

[0019] Figure 5 is another angle schematic view of the first rotor holder and the material blocking plate after cooperation;

[0020] Figure 6 is a partial view of another angle sectional view of the high-efficiency crushing sand making machine (showing the butt joint state between adjacent rotor holders).

[0021] Corresponding names of each mark in the figure:

[0022] 11, cylinder; 12, feed hopper; 2, bearing seat; 31, expansion sleeve; 32, pulley; 4, main shaft; 51, first rotor holder; 511, first annular surface; 512, second annular surface; 513, cavity; 514, mounting portion; 515, bolt hole; 516, convex strip; 517, hammer head; 5171, groove; 518, lower end surface; 52, second rotor holder; 53, third rotor holder; 54, fourth rotor holder; 6, lining plate; 7, material blocking plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0024] Embodiments of the present application:

[0025] As shown in the drawings, Figures 1-5 A high-efficiency crushing sand making machine comprises a cylinder 11, a main shaft 4 is arranged in the cylinder 11, the main shaft 4 is vertically placed, and the sand making machine in the embodiment is a vertical sand making machine. Four rotors are arranged on the main shaft 4 in the axial direction of the main shaft 4, the rotor comprises a rotor holder and a hammer head 517, the rotor holder is assembled on the main shaft 4, and the hammer head 517 is connected to the rotor holder by bolts. Four rotor holders are sequentially arranged from top to bottom, and are defined as a first rotor holder 51, a second rotor holder 52, a third rotor holder 53 and a fourth rotor holder 54.

[0026] As shown in the drawings, Figures 2-5 Taking the first rotor holder 51 as an example, the rotor holder comprises a rotation-stopping assembly portion and a mounting portion 514 located at the periphery of the rotation-stopping assembly portion, the rotation-stopping assembly portion is sleeved on the main shaft 4, and transmission is realized by using a key. Four mounting portions 514 of each rotor holder are arranged at intervals, and the hammer head 517 is connected to the mounting portion 514 of the rotor holder by bolts. The mounting portions 514 of the upper and lower adjacent rotor holders are staggered, so that the material crushing effect is improved. The structures of the hammer heads 517 on the rotor holders are the same.

[0027] The upper end face and the lower end face 518 of the rotor holder are both flat, and the upper end face and the lower end face 518 refer to the upper and lower end faces of the main body part excluding the mounting part 514; it can also be understood that the main body part is a cylindrical structure, and the upper and lower ends are both flat structures. In a conventional rotation-stopping assembly part, a protrusion is arranged at the upper and lower ends, so that the adjacent rotor holders have a gap and the material can enter the cavity 513 of the rotor holder. In the embodiment, the upper end face and the lower end face 518 of the rotor holder are both machined flat, and the lower end face 518 of one rotor holder is in contact with the upper end face of the adjacent next rotor holder, the two end faces are tightly fitted, and the gap between the two can be eliminated, so that the material in the crushing process cannot enter the cavity 513 of the rotor holder. As shown in the figure, the butt joint position A between the two adjacent rotor holders has no gap at the butt joint. The rotor holder is made of steel plates assembled and welded to reduce the cost and weight, and the inside is a hollow structure. Figure 6 Figure 3 The upper end face includes a first annular face 511 and a second annular face 512, and the two are coplanar. Due to the influence of the hollow structure of the rotor holder, the upper end face is not a complete flat but has a hole, so the upper end face is defined as including the first annular face 511 and the second annular face 512 for easy understanding. The lower end face of the first rotor holder 51, the second rotor holder 52, and the third rotor holder 53 also includes two annular faces, and the lower end face of the fourth rotor holder 54

[0028] The mounting part 514 has a mounting surface perpendicular to the rotation direction of the rotor, and a plurality of protrusions 516 are arranged on the mounting surface in a vertical direction. The hammer head 517 is provided with a plurality of grooves 5171 for limiting the protrusions 516. The protrusions 516 are circular arc protrusions, and the grooves 5171 are circular arc grooves. The limiting cooperation between the protrusions 516 and the grooves 5171 ensures the reliability of the connection of the hammer head 517. A bolt hole 515 is arranged vertically on the mounting surface, and the bolt hole 515 is a long hole. The length direction of the bolt hole 515 is along the arrangement direction of the protrusions 516. In the embodiment, three protrusions 516 are arranged on the mounting surface, and the hammer head 517 is provided with five grooves 5171. After the hammer head 517 is used for a period of time, it is worn out. In this case, the loosened bolt can move the hammer head 517 outward, so that the original groove 5171 is selectively matched with other protrusions 516, and then the bolt is fixed again, and the hammer head 517 can be used for a period of time. The bolt hole 515 is a long hole, which can still be fixed by the bolt after the connection position of the hammer head 517 is changed.

[0029] ​In other embodiments, the mounting portion has a mounting surface perpendicular to the rotation direction of the rotor, and the mounting surface is provided with a plurality of convex strips in sequence and adjacent to each other, the convex strips are in the form of teeth, and the grooves are corresponding tooth grooves. Each convex strip is similar to a sawtooth structure, and when adjusting the hammer head 517, a smaller distance can be adjusted compared to the above-mentioned embodiments to change the mounting position of the hammer head 517.

[0030] The end faces of any two adjacent ones of the first rotor frame 51, the second rotor frame 52, the third rotor frame 53, and the fourth rotor frame 54 are in contact and fit, and the material cannot enter the cavity 513 of the rotor frame from between the two. For the first rotor frame 51, a material blocking plate 7 is arranged on the main shaft 4 above the upper side of the first rotor frame 51, the material blocking plate 7 is a circular plate, the lower side of the material blocking plate 7 is in close contact with the upper end face of the first rotor frame 51, and the material blocking plate 7 is used to prevent the material from entering the cavity 513 of the first rotor frame 51 from above; as shown in the drawings, the butt joint position B between the material blocking plate 7 and the first rotor frame 51 has no gap. The material blocking plate 7 is sleeved on the main shaft 4 and located below the bearing seat 2 which cooperates with the upper section of the main shaft 4. Figure 6

[0031] The first rotor frame 51, the second rotor frame 52, the third rotor frame 53, and the fourth rotor frame 54 are all hollow structures, and the fourth rotor frame 54 is different from the other three in that the lower end face 518 is a closed surface, i.e., the lower opening of the cavity 513 structure is closed to prevent the material from entering the cavity 513 of the rotor frame.

[0032] The upper side of the cylinder body 11 is provided with a feed hopper 12, the feed hopper 12 is used for feeding material into the cylinder body 11, the feed hopper 12 has an inverted U-shaped structure, and the material entering the feed inlet is divided by the feed hopper 12, so that the material enters the cylinder body 11 more uniformly.

[0033] The upper end of the main shaft 4 extends upward out of the cylinder body 11 and is connected with a belt pulley 32, the belt pulley 32 is in transmission connection with the upper end of the main shaft 4 through an expansion sleeve 31, the belt pulley 32 is located in the inverted U-shaped structure and has a compact structure. The belt pulley 32 is a driven belt pulley 32 and is driven by a motor and a belt. The expansion sleeve 31 is used for installation instead of the traditional key connection, which facilitates the disassembly and reinstallation of the belt pulley 32 during later maintenance.

[0034] ​A plurality of lining plates 6 are bolted to the inner wall of the barrel 11, the lining plates 6 are arc-shaped blocks, and the surfaces of the lining plates 6 are provided with tooth portions which can collide with the material. The main bodies of the first rotor holder 51, the second rotor holder 52, the third rotor holder 53 and the fourth rotor holder 54 are sequentially butted to form a rotating drum structure with a gradually changing diameter (increasing from top to bottom) so that the distance between each hammer head 517 from top to bottom and the lining plate 6 in the barrel 11 gradually decreases, multi-stage crushing is realized, and finally the material with fine particles is obtained.

[0035] The efficient crushing sand making machine has the advantages that the protrusions at the upper and lower ends of each rotor holder in the axial direction are omitted, the structure is designed as a plane structure, the space occupied in the axial direction is reduced, three rotor holders can be arranged in the barrel 11 originally, four rotor holders can be arranged now, one more stage of crushing is realized, and the crushing effect is improved under the condition that the structure of the barrel 11 is not changed.

Claims

1. A high-efficiency crushing sand making machine, comprising a barrel, a main shaft arranged in the barrel, a plurality of rotors arranged on the main shaft in the axial direction of the main shaft, wherein each rotor comprises a rotor frame and a hammer head, the rotor frame is assembled on the main shaft, and the hammer head is connected to the rotor frame by bolts. The upper end face and the lower end face of the rotor frame are both flat surfaces, and the lower end face of the rotor frame is in contact with the upper end face of the next adjacent rotor frame to eliminate the gap therebetween.

2. The high efficiency shredder sand making machine of claim 1, wherein: The rotor frame comprises a rotation-stopping assembly part and four mounting parts located at the periphery of the rotation-stopping assembly part, the rotation-stopping assembly part is sleeved on the main shaft, and the hammer head is connected to the mounting parts of the rotor frame by bolts.

3. The high efficiency shredding sand making machine of claim 2, wherein: The mounting part has a mounting surface perpendicular to the rotation direction of the rotor, a plurality of convex strips are arranged on the mounting surface in a vertical direction, the hammer head is provided with a plurality of recesses for limiting the convex strips, the convex strips are circular arc convex strips, and the recesses are circular arc recesses.

4. The high efficiency shredder sand making machine of claim 3, wherein: The mounting part has a mounting surface perpendicular to the rotation direction of the rotor, a plurality of convex strips are arranged on the mounting surface in a vertical direction, the hammer head is provided with a plurality of recesses for limiting the convex strips, the convex strips are circular arc convex strips, and the recesses are circular arc recesses.

5. The high efficiency shredding sand making machine of claim 3, wherein: The mounting surface is vertically provided with bolt holes, the bolt holes are long holes, and the length direction of the bolt holes is along the arrangement direction of the convex strips.

6. The high efficiency shredder sand making machine of claim 1, wherein: The rotor frame comprises four rotor frames arranged from top to bottom, which are defined as a first rotor frame, a second rotor frame, a third rotor frame and a fourth rotor frame, a material blocking plate is arranged on the upper side of the first rotor frame of the main shaft, and the lower side of the material blocking plate is in close contact with the upper end face of the first rotor frame.

7. The high efficiency shredder sand making machine of claim 6, wherein: The first rotor frame, the second rotor frame, the third rotor frame and the fourth rotor frame are all hollow structures, and the lower end face of the fourth rotor frame is a closed surface.

8. The high efficiency shredder sand making machine of claim 1, wherein: The upper side of the cylinder body is provided with a feeding hopper for feeding materials into the cylinder body, the feeding hopper has an inverted U-shaped structure, the upper end of the main shaft extends out of the cylinder body and is connected with a pulley, the pulley is in driving connection with the upper end of the main shaft through an expansion sleeve, and the pulley is located in the inverted U-shaped structure.

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