Superfine sand fine sand making machine

Abstract

The utility model relates to the technical field of crushing equipment, in particular to a superfine sand fine sand making machine. The superfine sand fine sand making machine comprises a main shaft, a disc connecting piece, a connecting pin shaft, a machine shell and a hammer head structure. The main shaft is vertically arranged, the disc connecting piece and the main shaft are coaxial, a feeding port is formed in the top end of the machine shell, and a discharging port is formed in the bottom end of the machine shell. The length of the hammer head structure is adjustable, and the hammer head structure is connected with the main shaft through a disc connecting piece. When the hammer head structure is abraded, the length of the hammer head structure is adjusted so as to adjust the gap between the hammer head structure and the machine shell. Therefore, the gap between the hammer head structure and the machine shell is within the set range, the crushing efficiency of the superfine sand fine sand making machine is guaranteed, the utilization rate of the hammer head structure is improved, and material saving and cost saving are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of crushing equipment, in particular to an ultra-fine sand fine sand making machine. Background Art

[0002] Hammer crusher is a kind of equipment that crushes materials in the form of impact. It is suitable for medium and fine crushing of materials such as limestone, slag, coke, coal, and scrap steel in cement, chemical, electric power, and metallurgy industries. Crusher is a crushing machine that uses the high-speed impact of the hammer structure to perform medium and fine crushing of materials. The hammer is easy to wear during the crushing operation, and the utilization rate of the hammer material is low. At the same time, due to the wear of the hammer, the gap between the outer edge of the hammer and the crusher liner becomes larger, and the crushing efficiency is reduced.

[0003] How to solve the above technical problems is a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0004] In order to solve the problems and shortcomings in the prior art, the utility model provides an ultra-fine sand fine sand making machine, which is designed with a hammer head structure in an adjustable length. When the hammer head structure is worn, the length of the hammer head structure is adjusted to adjust the gap between the hammer head structure and the casing. Thus, the gap between the hammer head structure and the casing is within a set range, thereby ensuring the crushing efficiency of the ultra-fine sand fine sand making machine, improving the utilization rate of the hammer head structure, and achieving material saving and cost saving.

[0005] Specifically, the utility model provides an ultra-fine sand fine sand making machine, which includes a main shaft, a disc connector, a connecting pin, and a casing, wherein the main shaft is vertically arranged, the disc connector is coaxial with the main shaft, a feed inlet is arranged at the top of the casing, and a discharge port is arranged at the bottom of the casing. The ultra-fine sand fine sand making machine also includes a hammer head structure, the length of which is adjustable, and the hammer head structure is connected to the main shaft through the disc connector.

[0006] Optionally, there are multiple disc connectors, and the multiple disc connectors are arranged in parallel.

[0007] Optionally, there are multiple hammer head structures on each disc connector, and the multiple hammer head structures are equidistantly distributed along the circumference of the disc connector.

[0008] Optionally, the hammer head structure on each of the disc connectors is an odd number.

[0009] Optionally, the hammer head structure comprises:

[0010] Hammer head assembly;

[0011] An adjusting component is connected to the hammer head component through a sleeve, and the sleeve length of the hammer head component and the adjusting component is adjusted to adjust the length of the hammer head structure, so that the gap between the hammer head structure and the liner of the ultra-fine sand fine sand making machine is within a preset range.

[0012] Optionally, the adjustment component includes:

[0013] An adjusting member, the adjusting member comprising a limiting hole, a force-bearing hole and a guide rod;

[0014] An adjusting plate, wherein the adjusting plate is matched with the limiting hole and the force-bearing hole, and the adjusting plate passes through the limiting hole and the force-bearing hole to adjust the length of the hammer head structure.

[0015] Optionally, the hammer assembly includes a hammer and a fixing member;

[0016] One end of the fixing member is sleeve-connected to the adjusting member, and the other end of the fixing member is detachably connected to the hammer head.

[0017] Optionally, a first protrusion is provided at one end of the hammer head connected to the fixing member;

[0018] The fixing member is provided with a first groove body corresponding to the first protrusion body.

[0019] Optionally, the hammer head structure further includes two side guard plates, and the two side guard plates are correspondingly arranged on both sides of the fixing member.

[0020] Optionally, a second protrusion is provided on the fixing member, a second groove is provided on the edge guard plate, and the second protrusion and the second groove are provided correspondingly.

[0021] In the ultra-fine sand fine sand making machine of the utility model, by designing the hammer head structure as a length-adjustable structure, when the hammer head structure is worn to a certain extent, the length of the hammer head structure is adjusted to adjust the gap between the hammer head structure and the casing, thereby ensuring the working efficiency of the ultra-fine sand fine sand making machine. The hammer head structure is set to be adjustable, which can improve the utilization rate of the hammer head structure, thereby achieving material saving and cost saving.

[0022] Based on the detailed description of the specific embodiments of the present invention in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other purposes, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0024] Figure 1 It is a cross-sectional view of an ultra-fine sand fine sand making machine according to an embodiment of the utility model;

[0025] Figure 2 It is a partial cross-sectional view of an ultra-fine sand fine sand making machine according to an embodiment of the utility model;

[0026] Figure 3 This is a front view of a hammer head structure according to an embodiment of the utility model;

[0027] Figure 4 It is a structural diagram of a hammer head structure according to another embodiment of the utility model;

[0028] Figure 5 It is a front view of a hammer head structure according to another embodiment of the utility model;

[0029] Figure 6 is an AA cross-sectional view of a hammer head structure according to another embodiment of the utility model;

[0030] Figure 7 It is a left side view of a hammer head structure according to another embodiment of the utility model;

[0031] Figure 8 is a structural diagram of an adjusting member according to an embodiment of the utility model;

[0032] Fig. 9 is a structural diagram of an adjusting member according to another embodiment of the utility model;

[0033] Fig.10 It is a structural diagram of an adjusting piece according to an embodiment of the utility model;

[0034] Fig.11 is a structural diagram of a fixing member according to an embodiment of the utility model;

[0035] Fig.12 is a cross-sectional view of a fixing member according to an embodiment of the utility model;

[0036] Fig.13 is a front view of an edge guard plate according to an embodiment of the utility model;

[0037] Fig.14 It is a front view of a hammer head structure according to an embodiment of the utility model.

[0038] In the figure: 1-spindle, 2-disc connecting piece, 3-connecting pin, 4-hammer structure, 5-casing, 6-adjusting assembly, 7-hammer assembly, 10-adjusting piece, 11-mounting hole, 12-limiting hole, 13-force hole, 14-guide rod, 15-first through hole, 20-adjusting plate, 21-first adjusting plate, 22-second adjusting plate, 23-installation hole, 24-gasket, 30-fixing piece, 31-second through hole, 32-nut mounting hole, 33-second protrusion, 34-first groove, 35-guide groove, 36-second bolt mounting hole, 37-second screw mounting hole, 50-side guard plate, 51-second groove, 52-first screw mounting hole, 60-hammer, 61-first protrusion, 62-first bolt mounting hole. DETAILED DESCRIPTION

[0039] Refer to the following Figures 1 to 14 To describe an ultra-fine sand fine sand making machine of an embodiment of the utility model. In the description of this embodiment, it should be understood that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0040] In the description of the present embodiment, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0041] Figure 1 1 is a cross-sectional view of an ultra-fine sand fine sand making machine according to an embodiment of the utility model. Figure 1 As shown, combined with Figures 2 to 14The utility model provides an ultra-fine sand fine sand making machine, which comprises a main shaft 1, a disc connector 2, a connecting pin 3, a casing 5 and a hammer structure 4. The main shaft 1 is arranged vertically; the disc connector 2 is coaxial with the main shaft 1; the top of the casing 5 is provided with a feed inlet, and the bottom of the casing 5 is provided with a discharge outlet; the length of the hammer structure 4 is adjustable, and the hammer structure 4 is connected to the main shaft 1 through the disc connector 2. In other words, the main shaft 1 of the ultra-fine sand fine sand making machine is perpendicular to the ground, and the disc connector 2 is coaxially connected with the main shaft 1.

[0042] The working process of the ultra-fine sand fine sand making machine includes: the rotation of the main shaft 1 drives the rotation of the disc connector 2, and the hammer structure 4 connected to the disc connector 2 rotates with the rotation of the disc connector 2, that is, the high-speed rotation of the main shaft 1 of the ultra-fine sand fine sand making machine drives the hammer structure 4 to rotate around the main shaft 1 at high speed. While the hammer structure 4 rotates around the main shaft 1 at high speed, it can also swing around the connecting pin 3. After the material to be crushed enters the ultra-fine sand fine sand making machine, it comes into contact with the hammer structure 4 and is crushed under the impact of the hammer structure 4. In this process, the hammer structure 4 wears as it collides with the material. After the hammer structure 4 wears to a certain extent, the gap between the hammer structure 4 and the casing 5 becomes larger, and the crushing efficiency of the ultra-fine sand fine sand making machine is reduced. It is necessary to adjust the length of the hammer structure 4 so that the hammer structure 4 extends in the direction of the casing 5 to reduce the gap between the hammer structure 4 and the casing 5.

[0043] In this embodiment, when the hammer structure 4 is worn to a certain extent, the gap between the hammer structure 4 and the housing 5 can be adjusted to a preset range by simply adjusting the length of the hammer structure 4 instead of replacing the hammer, thereby ensuring the working efficiency of the ultra-fine sand fine sand making machine. The hammer structure is set to be adjustable, which can improve the utilization rate of the hammer structure 4, thereby achieving material saving and cost savings.

[0044] In some embodiments of the present invention, there are multiple disc connectors 2, and the multiple disc connectors 2 are arranged in parallel.

[0045] Specifically, the ultrafine sand fine sand making machine includes a plurality of disc connectors 2, each of which is connected to the main shaft 1, and the axis of the disc connector 2 is on the same straight line as the axis of the main shaft 1. The plurality of disc connectors 2 are arranged in parallel along the vertical direction.

[0046] In this embodiment, the ultrafine sand fine sand making machine includes a plurality of disc connectors 2, that is, after the material to be crushed enters the ultrafine sand fine sand making machine, it needs to pass through the plurality of disc connectors 2 from top to bottom in sequence. That is to say, after the material to be crushed enters the ultrafine sand fine sand making machine, it needs to be hammered by the hammer structure 4 multiple times in sequence. Specifically, the large-particle material to be crushed (usually with a diameter of 30 to 50 mm or more) enters the ultrafine sand fine sand making machine from the feed port, and under the action of gravity, it first falls into the crushing area of ​​the uppermost layer, contacts the hammer structure 4 rotating at a high speed on the uppermost layer, is crushed by the first blow and obtains a higher speed. After the material is hammered and crushed, it hits the surrounding casing 5 at a high speed, generates a large impact force to form the first impact crushing, and obtains smaller particles. Under the action of gravity, the crushed material particles fall into the crushing area of ​​the next layer, continue to be hit and crushed by the hammer structure 4 rotating at a high speed on this layer, and obtain a higher speed again, and then hit the surrounding casing 5 around the corresponding area at a high speed to generate a large impact force, and form impact crushing again. From top to bottom, the materials are hit and crushed many times by the multi-layer hammers equipped with the ultra-fine sand fine sand making machine during the falling process.

[0047] In this embodiment, a multi-layer disc structure connector, that is, a multi-layer hammer head structure 4 is provided, which can enable large-particle materials to be crushed to be better crushed, thereby improving the working efficiency of the ultra-fine sand fine sand making machine and the proportion of fine sand produced.

[0048] It should be noted that, in this embodiment, the number of the disc connectors 2 can be any integer, such as 2, 3, 4, etc., which shall be subject to actual production.

[0049] In some embodiments of the present invention, the spacing between every two adjacent disc connectors 2 is equal. Of course, considering that the particles of the material become smaller after being crushed by the upper layer of ultra-fine sand fine sand making machine, the spacing between every two adjacent disc connectors 2 from top to bottom can also gradually decrease.

[0050] In some embodiments of the utility model, there are multiple hammer structures 4 on each disc connector 2. Specifically, the hammer structure 4 on a disc connector 2 can be any integer value such as 2, 3, 4, 5, etc., which is specifically set according to the crushing effect that the hammer type ultra-fine sand fine sand making machine needs to achieve.

[0051] In this embodiment, there are multiple hammer structures 4 on one disc connector 2, so that the number of times the material is hammered by the hammers in the same crushing area increases, which can improve the crushing efficiency.

[0052] In some embodiments of the utility model, a plurality of hammer structures 4 are equidistantly distributed along the circumference of the disc connector 2. In this embodiment, the hammer structures 4 are equidistantly distributed, and uneven force will not occur during the operation of the ultra-fine sand fine sand making machine, thereby improving the working stability of the ultra-fine sand fine sand making machine.

[0053] In some embodiments of the present invention, the number of hammer structures 4 on each disc connector 2 is an odd number.

[0054] In some embodiments of the present invention, the number of hammer structures 4 of each disc connector 2 may be equal or unequal.

[0055] In some embodiments of the present invention, the gap between the outer edge of the hammer head and the housing 5 is 10-20 mm.

[0056] In this embodiment, the gap between the outer edge of the hammer structure 4 and the housing 5 is set at 10-20 mm. During the operation of the hammer type ultra-fine sand fine sand making machine, when the diameter of the particles after the material is crushed is smaller than the width of the gap, the particles may be affected by the centrifugal force and may be in the gap between the outer edge of the hammer structure 4 and the housing 5, and perform irregular movements such as rotation and tumbling in the gap. During the movement, the particles collide repeatedly with the housing 5 and the outer edge of the disassembly hammer. During the collision, the edges and corners are worn, the appearance is rounded, and the particle size becomes smaller.

[0057] In this embodiment, by setting the gap between the outer edge of the hammer structure 4 and the housing 5 to 10-20 mm, the crushing efficiency can be effectively improved. For example, when using stones to make sand, the crushing efficiency of the fine sand can be effectively improved.

[0058] Of course, during the operation of the hammer type ultra-fine sand fine sand making machine, there will be a phenomenon that the gap between the outer edge of the hammer head structure 4 and the casing 5 exceeds 20mm. At this time, the crushing efficiency of the hammer type ultra-fine sand fine sand making machine will be significantly reduced, so it is necessary to adjust the size of the gap.

[0059] In some embodiments of the present invention, the hammer structure 4 includes a hammer assembly 7 and an adjustment assembly 6. The hammer assembly 7 cooperates with the housing 5 of the ultra-fine sand fine sand making machine to impact the material, thereby crushing the material. The adjustment assembly 6 and the hammer assembly 7 are sleeved and connected. By adjusting the sleeve length of the hammer assembly 7 and the adjustment assembly 6, the length of the hammer structure 4 can be adjusted, so that the gap between the hammer structure 4 and the housing 5 of the ultra-fine sand fine sand making machine is within a preset range.

[0060] Specifically, the gap between the hammer structure 4 and the housing 5 of the ultra-fine sand fine sand making machine is within a preset range. In the process of crushing the material, the part of the hammer structure 4 close to the housing 5 of the ultra-fine sand fine sand making machine is worn, especially the outer edge perpendicular to the length direction of the hammer structure 4 is seriously worn. Because of the wear of the hammer structure 4, the gap between the hammer structure 4 and the housing 5 of the ultra-fine sand fine sand making machine becomes larger. When the gap exceeds the upper limit of the preset range, the efficiency of obtaining ultra-fine sand is significantly reduced. In order to prevent the efficiency of obtaining ultra-fine sand from being significantly reduced, it is necessary to adjust the gap between the hammer structure 4 and the housing 5 of the ultra-fine sand fine sand making machine to a preset range. In this embodiment, the adjustment component 6 of the hammer structure 4 is adjusted to move the hammer component 7 toward the housing 5, so that the gap between the hammer structure 4 and the housing 5 of the ultra-fine sand fine sand making machine is reduced, that is, by adjusting the adjustment component 6 of the hammer structure 4, the gap between the hammer structure 4 and the housing 5 of the ultra-fine sand fine sand making machine is returned to the preset range, thereby ensuring the preparation efficiency of ultra-fine sand. The preset range is preferably 10 to 20 mm.

[0061] In this embodiment, by adjusting the adjustment component 6 of the hammer structure 4, the gap between the hammer structure 4 and the housing 5 of the ultra-fine sand fine sand making machine is within a preset range, thereby ensuring the preparation efficiency of ultra-fine sand. At the same time, the gap between the hammer structure 4 and the housing 5 of the ultra-fine sand fine sand making machine can be adjusted by adjusting the adjustment component 6 of the hammer structure 4 without replacing the hammer structure 4, thereby achieving material savings while ensuring the preparation efficiency of ultra-fine sand.

[0062] In some embodiments of the present invention, the adjustment assembly 6 includes an adjustment member 10 and an adjustment sheet 20. The peripheral wall of the adjustment member 10 is provided with a first through hole 15, and the adjustment member 10 has a guide rod 14. The hammer assembly 7 has a second through hole 31 and a guide groove 35.

[0063] The adjusting piece 20 is matched with the first through hole 15 , and the adjusting piece 20 passes through the first through hole 15 to adjust the length of the hammer head structure 4 .

[0064] Specifically, a first through hole 15 is provided on the peripheral wall of the adjusting member 10, and a second through hole 31 is provided on the hammer assembly 7. Under the guidance of the guide rod 14, the adjusting member 10 enters the guide groove 35 of the hammer assembly 7, so that part of the first through hole 15 and the second through hole 31 overlap, and part of the adjusting sheet 20 crosses the first through hole 15 and the second through hole 31, and at this time, the direction of the adjusting sheet 20 is perpendicular to the axial direction of the adjusting member 10. When the hammer assembly 7 is worn, the number of adjusting sheets 20 that pass through the first through hole 15 and the second through hole 31 at the same time is reduced, so that the hammer assembly 7 can move toward the direction of the casing 5, thereby extending the hammer structure 4 and reducing the gap. When the ultra-fine sand fine sand making machine is working, the hammer assembly 7 is subjected to centrifugal action, and a pressure perpendicular to the adjusting sheet 20 and pointing to the casing 5 is applied to the adjusting sheet 20, and the adjusting sheet 20 is squeezed to prevent it from falling off, so that the elongation of the hammer structure 4 remains unchanged.

[0065] In this embodiment, the length of the hammer head structure 4 is adjusted by the adjusting piece 20, thereby adjusting the gap between the hammer head structure 4 and the casing 5 of the ultra-fine sand fine sand making machine, which is easy to operate.

[0066] It should be noted that in other embodiments of the present invention, the adjusting member 10 has a guide groove, the hammer assembly 7 has a guide rod adapted to the guide groove, and the hammer assembly 7 is inserted into the adjusting member 10. In other words, there is no mandatory restriction on the internal and external relationship between the hammer assembly 7 and the adjusting member 10.

[0067] In a further embodiment of the present invention, the hammer assembly 7 moves toward the housing 5 so that a portion of the first through hole 15 does not overlap with the hammer assembly 7 .

[0068] Specifically, a first through hole 15 is provided on the peripheral wall of the adjusting member 10, and a second through hole 31 is correspondingly provided on the hammer assembly 7. Part of the adjusting sheet 20 crosses the first through hole 15 and the second through hole 31, and the direction of the adjusting sheet 20 is perpendicular to the axial direction of the adjusting member 10. When the hammer assembly 7 is worn, the number of adjusting sheets 20 that pass through the first through hole 15 and the second through hole 31 at the same time is reduced, so that the hammer assembly 7 can move toward the direction of the housing 5, thereby extending the hammer structure 4 and reducing the gap. At this time, part of the first through hole 15 does not overlap with the hammer assembly 7, so that the adjusting sheet 20 passes through this part of the first through hole 15 and cooperates with the adjusting sheet 20 that passes through the first through hole 15 and the second through hole 31 at the same time, so that the position of the adjusting member 10 and the hammer assembly 7 does not move.

[0069] In this embodiment, the two groups of adjustment pieces 20 cooperate with each other to achieve a better locking effect.

[0070] In other embodiments of the present invention, the adjusting piece 20 may have different lengths. The adjusting piece 20 that only needs to pass through a portion of the first through hole 15 uses the first adjusting piece 21, and the adjusting piece 20 that needs to pass through both the first through hole 15 and the second through hole 31 uses the second adjusting piece 22. The length of the second adjusting piece 22 is different from that of the first adjusting piece 21, and the thickness is the same or a multiple relationship.

[0071] In this embodiment, adjusting pieces 20 of different lengths are selected according to different insertion positions, which is beneficial to saving materials.

[0072] In some embodiments of the present invention, the adjusting member 10 has a mounting hole 11 , a limiting hole 12 , a force-bearing hole 13 and a guide rod 14 .

[0073] In this embodiment, the mounting hole 11 is used to mount the hammer structure 4 on the main shaft 1 of the ultra-fine sand fine sand making machine. The limiting hole 12 and the force-bearing hole 13 are used to pass the adjusting plate 20 to adjust the length of the hammer structure 4. The guide rod 14 allows the adjusting member 10 to be smoothly inserted into the hammer assembly 7.

[0074] In some embodiments of the present invention, the adjusting piece 20 includes a mounting hole 23 and a gasket 24. In this embodiment, the mounting hole 23 is provided on the adjusting piece 20 to facilitate the insertion and removal of the adjusting piece 20.

[0075] In other embodiments of the present invention, one end of the adjusting assembly 6 connected to the hammer assembly 7 is provided with an external thread, and one end of the hammer assembly 7 connected to the adjusting assembly 6 is provided with an internal thread corresponding to the external thread, and the adjusting assembly 6 and the hammer assembly 7 are connected through the thread. In actual use, by rotating the hammer assembly 7 or the adjusting assembly 6, the penetration degree of the hammer assembly 7 in the adjusting assembly 6 is changed, thereby adjusting the length of the hammer structure 4.

[0076] Of course, in some embodiments of the present invention, an internal thread is provided at one end of the adjusting component 6 connected to the hammer head component 7, and an external thread corresponding to the internal thread is provided at one end of the hammer head component 7 connected to the adjusting component 6, and the adjusting component 6 and the hammer head component 7 are connected by threads.

[0077] In some embodiments of the present invention, the hammer assembly 7 includes a hammer 60 and a fixing member 30. One end of the fixing member 30 is sleeve-connected with the adjusting member 10, and the other end of the fixing member 30 is detachably connected with the hammer 60.

[0078] In this embodiment, the hammer assembly 7 includes a hammer 60 and a fixing member 30, and the hammer 60 and the fixing member 30 are detachably connected, that is, the hammer 60 is a replaceable component. From the positional relationship, the hammer 60 is closer to the housing 5 of the ultra-fine sand fine sand making machine than the fixing member 30. When the hammer 60 is worn and the ultra-fine sand making efficiency cannot be guaranteed, the hammer 60 can be removed from the fixing member 30 and replaced with a new hammer 60 to enable the ultra-fine sand fine sand making machine to have a higher ultra-fine sand production efficiency.

[0079] In this embodiment, the hammer head 60 and the fixing member 30 are detachably connected. When the hammer head assembly 7 is worn to a certain extent, only the hammer head 60 part needs to be replaced without replacing the entire hammer head assembly 7, which significantly improves the utilization rate of materials and achieves material savings.

[0080] Generally speaking, the hammer head 60 is replaced only when the hammer head 60 is partially worn to about 80%, so as to improve the utilization rate of the material of the hammer head 60 as much as possible.

[0081] In some embodiments of the present invention, a first protrusion 61 is disposed at one end of the hammer head 60 connected to the fixing member 30 . A first groove 34 corresponding to the first protrusion 61 is disposed at one end of the fixing member 30 connected to the hammer head 60 .

[0082] In this embodiment, a first protrusion 61 is provided on an end face of the hammer head 60 facing away from the casing 5 of the ultra-fine sand fine sand making machine, and a first groove body 34 corresponding to the first protrusion 61 is provided on the fixing member 30. When the hammer head 60 and the fixing member 30 are connected, the first protrusion 61 is embedded in the first groove body 34.

[0083] In this embodiment, the first protrusion 61 is embedded in the first groove 34, which, on the one hand, plays a guiding role to facilitate installation; on the other hand, it increases the contact area between the hammer head 60 and the fixing member 30, making the connection between the two more stable.

[0084] In some embodiments of the present invention, the hammer head 60 and the fixing member 30 are connected by bolts. In other words, the hammer head 60 and the fixing member 30 are connected by bolts. Specifically, the hammer head 60 is provided with a through first bolt mounting hole 62 in a direction perpendicular to the first protrusion 61, the fixing member 30 is provided with a second bolt mounting hole 36 corresponding to the first bolt mounting hole 62, and the fixing member 30 is also provided with a nut mounting hole 32.

[0085] Specifically, the bolt passes through the first bolt installation hole 62 and the second bolt installation hole 36 , and the nut is installed in the nut installation hole 32 for fixing.

[0086] In this embodiment, bolt connection is adopted, which is simple to connect and easy to disassemble, so that the hammer head 60 is easy to replace.

[0087] In some embodiments of the present invention, the hammer structure 4 further includes two side guard plates 50, and the two side guard plates 50 are correspondingly arranged on both sides of the fixing member 30. In this embodiment, the setting of the side guard plates 50 protects the hammer structure 4, can reduce the wear of the fixing member 30 in the coarse particle crushing stage, thereby extending the service life of the fixing member 30 and reducing the replacement frequency of the fixing member 30.

[0088] In some embodiments of the present invention, the side guard plate 50 is provided with a second groove body 51, and the fixing member 30 is provided with a second protrusion body 33 corresponding to the second groove body 51. During the specific installation process, the second protrusion body 33 is embedded in the second groove body 51, which increases the contact area between the side guard plate 50 and the fixing member 30, making the connection between the two more stable.

[0089] In this embodiment, the second protrusion 33 not only makes the connection between the edge guard plate 50 and the fixing member 30 more stable, but also prevents the edge guard plate 50 from sliding relative to the fixing member 30, thereby playing a limiting role.

[0090] In some embodiments of the present invention, a first screw mounting hole 52 is provided on the edge guard plate 50, and a corresponding second screw mounting hole 37 is provided on the second protrusion 33. The screws are screwed into the first screw mounting hole 52 and the second screw mounting hole 37 in sequence to achieve the connection between the edge guard plate 50 and the fixing member 30.

[0091] In some embodiments of the present invention, the end of the hammer head 60 close to the housing 5 is arc-shaped. Specifically, the end of the hammer head 60 close to the housing 5 is set to an arc corresponding to the housing 5, so that the gap between the housing 5 and the hammer head 60 is basically consistent.

[0092] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived from the contents disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all such other variations or modifications.

Claims

1. An ultra-fine sand fine sand making machine, comprising a main shaft, a disc connector, a connecting pin, and a casing, wherein the main shaft is vertically arranged, the disc connector is coaxial with the main shaft, a feed port is arranged at the top end of the casing, and a discharge port is arranged at the bottom end of the casing, characterized in that: The ultra-fine sand fine sand making machine also includes a hammer head structure, the length of which is adjustable, and the hammer head structure is connected to the main shaft through the disc connector.

2. The ultra-fine sand fine sand making machine according to claim 1 is characterized in that: There are multiple disc connectors, and the multiple disc connectors are arranged in parallel.

3. The ultra-fine sand fine sand making machine according to claim 1 or 2, characterized in that: There are multiple hammer head structures on each disc connector, and the multiple hammer head structures are evenly distributed along the circumference of the disc connector.

4. The ultra-fine sand fine sand making machine according to claim 3 is characterized in that: The hammer head structure on each disc connector is an odd number.

5. The ultra-fine sand fine sand making machine according to claim 3 is characterized in that: The hammer head structure comprises: Hammer head assembly; An adjusting component is connected to the hammer head component through a sleeve, and the sleeve length of the hammer head component and the adjusting component is adjusted to adjust the length of the hammer head structure, so that the gap between the hammer head structure and the liner of the ultra-fine sand fine sand making machine is within a preset range.

6. The ultra-fine sand fine sand making machine according to claim 5 is characterized in that: The adjustment component comprises: An adjusting member, the adjusting member comprising a limiting hole, a force-bearing hole and a guide rod; An adjusting plate, wherein the adjusting plate is matched with the limiting hole and the force-bearing hole, and the adjusting plate passes through the limiting hole and the force-bearing hole to adjust the length of the hammer head structure.

7. The ultra-fine sand fine sand making machine according to claim 6 is characterized in that: The hammer assembly comprises a hammer and a fixing member; One end of the fixing member is sleeve-connected to the adjusting member, and the other end of the fixing member is detachably connected to the hammer head.

8. The ultra-fine sand fine sand making machine according to claim 7 is characterized in that: A first protrusion is provided at one end of the hammer head connected to the fixing member; The fixing member is provided with a first groove body corresponding to the first protrusion body.

9. The ultra-fine sand fine sand making machine according to claim 7, characterized in that: The hammer head structure also includes two side guard plates, and the two side guard plates are correspondingly arranged on both sides of the fixing member.

10. The ultra-fine sand fine sand making machine according to claim 9, characterized in that: The fixing member is provided with a second protrusion, the edge guard plate is provided with a second groove, and the second protrusion and the second groove are provided correspondingly.

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