Efficient sand making machine
By designing the rotary shaft of the grinding roller device in the sand making machine to have a preset acute angle with the central axis of the grinding roller device, centrifugal force component is generated, and the extrusion pressure of the grinding roller to the material is increased, the problem of low crushing efficiency in the prior art is solved. Achieve efficient material crushing.
Patent Information
- Application Number
- CN202420895285.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-04-26
AI Technical Summary
There are shortcomings in the crushing efficiency of roller sand making machines, especially inefficient crushing caused by different material specifications.
An efficient sand making machine is designed. The rotating shaft of the grinding roller device has a preset acute angle with the central axis of the grinding roller device, generating centrifugal force components in horizontal and vertical directions, thereby increasing the extrusion pressure of the grinding roller on the material and improving the Crushing efficiency.
By increasing the extrusion pressure of the grinding roller on the material, the crushing efficiency of the material is significantly improved, and the problem of low crushing efficiency in the prior art is solved.
Smart Images
Figure CN222469225U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand making equipment, in particular to a high-efficiency sand making machine. Background Art
[0002] Sand making machine is a kind of equipment widely used in medium and fine crushing of ores and rocks with medium hardness below in sand making, mineral processing, cement, metallurgy, chemical industry, building materials and other industrial sectors. It usually includes structures such as movable roller, fixed roller, driving device, etc., wherein a crushing chamber is formed between the movable roller and the fixed roller. When crushing materials, the materials enter the crushing chamber and are crushed into preset specifications under the action of the movable roller and the fixed roller.
[0003] Existing double-roller sand making machines usually use a certain distance between the moving roller and the fixed roller, and then drive the fixed roller and the moving roller to move inward in the opposite direction to achieve material crushing. However, since the raw materials of the materials are usually of different specifications, the material crushing efficiency is easily low.
[0004] Therefore, it is worthy of study for those skilled in the art to provide a sand making machine with high crushing efficiency. Summary of the invention
[0005] The technical problem to be solved by the utility model is to overcome the defects in the prior art, thereby providing a high-efficiency sand making machine.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A high-efficiency sand making machine comprises a main body; a grinding disc installed on the main body and having a first grinding disc surface and a second grinding disc surface; a grinding roller device having a grinding roller end face and a grinding roller inclined surface, a first grinding channel is formed between the grinding roller end face and the first grinding disc surface, and a second grinding channel is formed between the grinding roller inclined surface and the second grinding disc surface; a driving device comprises a rotating shaft for driving the grinding roller device to rotate circumferentially, a central axis of the rotating shaft forms a preset angle with the central axis of the grinding roller device, and the preset angle is an acute angle.
[0008] Preferably, there are several grinding roller devices distributed circumferentially around the rotating shaft; each of the grinding roller devices includes a mounting shaft, a grinding roller and a driving member; one end of the mounting shaft is fixedly connected to the rotating shaft, and the other end is rotatably connected to the grinding roller; the driving member is installed on the mounting shaft and is used to drive the grinding roller to rotate.
[0009] Preferably, the rotating shaft is perpendicular to the horizontal plane; an obtuse angle is formed between the first grinding disc surface and the second grinding disc surface; the central axis of the mounting shaft is perpendicular to the first grinding disc surface, and the preset angle ranges from 60° to 80°.
[0010] Preferably, the first grinding disc surface is parallel to the end surface of the grinding roller; and the second grinding disc surface is parallel to the inclined surface of the grinding roller.
[0011] Preferably, a plurality of the grinding discs are distributed in a circumferential array around the rotating shaft, or the grinding discs are distributed in an integrated manner around the rotating shaft.
[0012] Preferably, the grinding disc comprises a first grinding disc, a second grinding disc and a third grinding disc which are fixedly connected in sequence; the inner wall surface of the first grinding disc forms the first grinding disc surface, the inner wall surface of the second grinding disc forms the second grinding disc surface, and the inner wall surface of the third grinding disc forms a feed guide surface.
[0013] Preferably, the first grinding disc surface forms a first angle J1 with the horizontal plane, the second grinding disc surface forms a second angle J2 with the horizontal plane, and the feed guide surface forms a third angle J3 with the horizontal plane; the second angle J2 is smaller than the third angle J3, and the third angle J3 is smaller than the first angle J1.
[0014] Preferably, the value range of the first angle J1 is 60° to 80°; the value range of the second angle J2 is 10° to 30°; and the value range of the third angle J3 is 30° to 60°.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] In the above technical solution, a high-efficiency sand making machine is provided, in which the central axis of the rotating shaft and the central axis of the grinding roller device are at a preset angle, and the preset angle is an acute angle, so that when the rotating shaft drives the grinding roller device to rotate, the grinding roller device will generate a horizontal centrifugal force and a vertical centrifugal force component, wherein the horizontal centrifugal force component will increase the extrusion pressure applied by the end face of the grinding roller to the material in the first grinding channel, and the vertical centrifugal force component will increase the extrusion pressure applied by the inclined surface of the grinding roller to the material in the first grinding channel, thereby increasing the material crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0018] Figure 1 It is a structural schematic diagram of the utility model.
[0019] Figure 2 for Figure 1 Schematic diagram of the position of the grinding disc and grinding roller device.
[0020] Description of reference numerals:
[0021] 1. Main body; 101. First grinding channel; 102. Second grinding channel; 2. Grinding disc; 201. First grinding disc surface; 202. Second grinding disc surface; 203. Feed guide surface; 21. First grinding disc; 22. Second grinding disc; 23. Third grinding disc; 3. Grinding roller device; 301. Grinding roller end surface; 302. Grinding roller inclined surface; 31. Mounting shaft; 32. Grinding roller; 4. Driving device; 40. Rotating shaft. DETAILED DESCRIPTION
[0022] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0025] See also Figure 1 and Figure 2 The embodiment of the utility model provides a high-efficiency sand making machine, including a main body 1, a grinding disc 2, a grinding roller device 3 and a driving device 4. The main body 1 is the main frame structure of the sand making machine, a grinding channel is formed between the grinding disc 2 and the grinding roller device 3 (specifically, the grinding roller 32), and the driving device 4 is used to drive the grinding roller device 3 to rotate, so that the grinding roller device 3 extrude and grind the material in the grinding channel.
[0026] The grinding disc 2, the grinding roller device 3 and the driving device 4 can be set to various structures so that the sand making machine has a high crushing efficiency.
[0027] See also Figure 1 and Figure 2 In this embodiment, the grinding disc 2 has a first grinding disc surface 201 and a second grinding disc surface 202; the grinding roller device 3 has a grinding roller end surface 301 and a grinding roller inclined surface 302, a first grinding channel 101 is formed between the grinding roller end surface 301 and the first grinding disc surface 201, and a second grinding channel 102 is formed between the grinding roller inclined surface 302 and the second grinding disc surface 202; and along the central axis direction of the equipment, the first grinding disc surface 201 and the second grinding disc surface 202 are arranged from top to bottom, and correspondingly, the first grinding channel 101 and the second grinding channel 102 are distributed from top to bottom and are interconnected, and the second grinding channel 102 is located on one side of the discharge end of the first grinding channel 101; the driving device 4 includes a rotating shaft 40, the upper end of the rotating shaft 40 is connected to the grinding roller device 3, thereby driving the grinding roller device 3 to rotate circumferentially, and cooperating with the grinding disc 2 to achieve crushing of the materials in the first grinding channel 101 and the second grinding channel 102. During the material preparation process, the material first passes through the first grinding channel 101 and is squeezed and sheared by the first grinding disc surface 201 and the grinding roller end surface 301, so that the material is pre-crushed. The pre-crushed material slides along the first grinding channel 101 under the action of gravity to the second grinding channel 102 for secondary crushing.
[0028] Furthermore, in order to increase the material crushing effect, in the present embodiment, the rotating shaft 40 is installed vertically, and the central axis L of the rotating shaft 40 forms a preset angle J with the central axis L1 of the grinding roller device 3, and the preset angle J is an acute angle. This arrangement makes the overall rotation center axis of the grinding roller device 3 form an acute angle with the first grinding disc surface 201, so that when the rotating shaft 40 drives the grinding roller device 3 to rotate, the grinding roller device 3 will generate a centrifugal force component in the horizontal direction and the vertical direction, wherein the centrifugal force component in the horizontal direction will increase the extrusion pressure applied by the grinding roller end face 301 to the material in the first grinding channel 101, and the centrifugal force component in the vertical direction will increase the extrusion pressure applied by the grinding roller inclined surface 302 to the material in the first grinding channel 101, thereby increasing the material crushing efficiency.
[0029] See also Figure 1 There are four grinding roller devices 3 distributed circumferentially around the rotating shaft 40. By reasonably setting the number of grinding roller devices 3, the high crushing efficiency of the sand making machine can be achieved, and the too small distance between two grinding roller devices 3 caused by too many grinding roller devices 3 can be avoided, which affects the discharge of materials, further improving the crushing efficiency of the sand making machine. The reasonable setting of the number of grinding roller devices 3 can also reduce the energy consumption of the equipment to a certain extent. Of course, in other embodiments, the grinding roller device 3 can also be set to one, two, three or more.
[0030] Further, each grinding roller device 3 includes a mounting shaft 31, a grinding roller 32 and a driving member; one end of the mounting shaft 31 is fixedly connected to the rotating shaft 40, and the other end is rotatably connected to the grinding roller 32; the driving member is installed on the mounting shaft 31, and can be specifically set to a motor, not shown in the figure, and the driving member is mainly used to drive the grinding roller 32 to rotate, thereby further increasing the crushing efficiency of the sand making machine.
[0031] In order to further facilitate material discharge, a plurality of grinding discs 2 may be distributed in a circumferential array around the rotating shaft 40 . Of course, in other embodiments, the grinding discs may also be distributed in an integrated manner around the rotating shaft 40 .
[0032] In this embodiment, the central axis of the rotating shaft 40 is perpendicular to the horizontal plane; the first grinding disc surface 201 and the second grinding disc surface 202 form an obtuse angle; the central axis of the mounting shaft 31 is perpendicular to the first grinding disc surface 201, and the preset angle J can be set to 60°, 70°, 75° or 80°. Of course, the value range of the preset angle J is 60° to 80°, so that when the rotating shaft 40 drives the grinding roller device 3 to rotate circumferentially, the centrifugal force component in the horizontal direction is greater than the centrifugal force component in the vertical direction, so that the grinding roller device 3 can apply a greater force to the first grinding channel 101, so that the pre-crushing effect is better, and the centrifugal force component in the vertical direction is relatively small, which can avoid excessive crushing of the material and cause the material specifications to be smaller.
[0033] See also Figure 2 In order to make the material evenly stressed and thus prepare material with certain specifications and sizes, the first grinding disc surface 201 is parallel to the end surface 301 of the grinding roller; the second grinding disc surface 202 is parallel to the inclined surface 302 of the grinding roller, and the first grinding disc surface 201.
[0034] Furthermore, in order to further improve the crushing efficiency of the device while not affecting the crushing effect of the device, in this embodiment, the width H1 of the first grinding channel 101 is greater than the width H2 of the second grinding channel 102 .
[0035] See also Figure 2 In order to further increase the crushing efficiency and allow the material to smoothly enter the first grinding channel 101, in this embodiment, the grinding disc 2 includes a first grinding disc 21, a second grinding disc 22 and a third grinding disc 23 which are fixedly connected in sequence; the inner wall surface of the first grinding disc 21 forms a first grinding disc surface 201, the inner wall surface of the second grinding disc 22 forms a second grinding disc surface 202, and the inner wall surface of the third grinding disc 23 forms a feed guide surface 203.
[0036] Furthermore, the first angle J1 between the first grinding disc surface 201 and the horizontal plane is greater than the second angle J2 between the second grinding disc surface 202 and the horizontal plane, that is, J1>J2, so that the speed at which the material moves down along the first grinding disc surface 201 is greater than the speed at which the material moves down along the second grinding disc surface 202, which can improve the crushing efficiency of the equipment while not affecting the crushing effect of the equipment. From the geometric relationship, it can be seen that the first angle J1 is equal to the preset angle J, which can be set to 60°, 70°, 75° or 80°, and the value range of the first angle J1 is 60° to 80°. The second angle J2 can be set to 10°, 20° or 30°.
[0037] Furthermore, along the gravity direction, the feed guide surface 203, the first grinding disc surface 201, and the second grinding disc surface 202 are connected in sequence to form the inner wall surface of the grinding disc 2, and the feed guide surface 203 forms a third angle J3 with the horizontal plane, the second angle J2 is smaller than the third angle J3, and the third angle J3 is smaller than the first angle J1, that is, J1>J3>J2, thereby reducing the speed at which the material falls into the first grinding channel 101.
[0038] Furthermore, the third angle J3 can be set to 30°, 45° or 60°. By reasonably setting the angle of the feed guide surface 203, it is possible to prevent the material from directly hitting the grinding roller device 3 during the feeding process, or even falling from both sides of the grinding disc 2 and the grinding roller device 3 (i.e., both sides of the feed end of the first grinding channel 101) without entering the first grinding channel 101, thereby increasing the crushing efficiency and service life of the equipment (sand making machine). Of course, in other embodiments, the feed guide surface 203 may not be set. In this case, the first angle J1 may be appropriately reduced to prevent the material from failing to enter the first grinding channel 101 smoothly.
[0039] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.
Claims
1. A high-efficiency sand making machine, characterized in that: include, Subject (1); A grinding disc (2), mounted on the main body (1), having a first grinding disc surface (201) and a second grinding disc surface (202); A grinding roller device (3) comprising a grinding roller end surface (301) and a grinding roller inclined surface (302), wherein a first grinding channel (101) is formed between the grinding roller end surface (301) and the first grinding disc surface (201), and a second grinding channel (102) is formed between the grinding roller inclined surface (302) and the second grinding disc surface (202); The driving device (4) comprises a rotating shaft (40) for driving the grinding roller device (3) to rotate circumferentially, wherein the central axis of the rotating shaft (40) forms a preset angle with the central axis of the grinding roller device (3), and the preset angle is an acute angle.
2. A high-efficiency sand making machine according to claim 1, characterized in that: The grinding roller devices (3) are distributed in a plurality of directions around the rotating shaft (40); Each grinding roller device (3) comprises a mounting shaft (31), a grinding roller (32) and a driving member; One end of the installation shaft (31) is fixedly connected to the rotating shaft (40), and the other end is rotatably connected to the grinding roller (32); The driving member is mounted on the mounting shaft (31) and is used to drive the grinding roller (32) to rotate.
3. A high-efficiency sand making machine according to claim 2, characterized in that: The rotating shaft (40) is perpendicular to the horizontal plane; An obtuse angle is formed between the first grinding disc surface (201) and the second grinding disc surface (202); The central axis of the mounting shaft (31) is perpendicular to the first grinding disc surface (201), The central axis of the installation shaft (31) and the central axis of the rotating shaft (40) form a preset angle J, and the value range of the preset angle J is 60° to 80°.
4. A high-efficiency sand making machine according to claim 1, characterized in that: The first grinding disc surface (201) is parallel to the grinding roller end surface (301); The second grinding disc surface (202) is parallel to the grinding roller inclined surface (302).
5. A high-efficiency sand making machine according to claim 1, characterized in that: A plurality of grinding discs (2) are distributed in a circumferential array around the rotating shaft (40). or, The grinding disc (2) is distributed in an integrated manner around the rotating shaft (40).
6. A high-efficiency sand making machine according to claim 5, characterized in that: The grinding disc (2) comprises a first grinding disc (21), a second grinding disc (22) and a third grinding disc (23) which are fixedly connected in sequence; The inner wall surface of the first grinding disc (21) forms the first grinding disc surface (201), the inner wall surface of the second grinding disc (22) forms the second grinding disc surface (202), and the inner wall surface of the third grinding disc (23) forms a feed guide surface (203).
7. A high-efficiency sand making machine according to claim 6, characterized in that: The first grinding disc surface (201) forms a first angle J1 with the horizontal plane, the second grinding disc surface (202) forms a second angle J2 with the horizontal plane, and the feed guide surface (203) forms a third angle J3 with the horizontal plane; The second angle J2 is smaller than the third angle J3, and the third angle J3 is smaller than the first angle J1.
8. A high-efficiency sand making machine according to claim 7, characterized in that: The value range of the first angle J1 is 60° to 80°; The value range of the second angle J2 is 10° to 30°; The value range of the third angle J3 is 30° to 60°.