Rolling type pressure-regulating sand making machine

Abstract

The utility model relates to a grinding type pressure-regulating sand making machine which comprises a main body, a grinding disc, a grinding roller device and a driving device, the grinding roller device comprises a grinding roller, the grinding roller and the grinding disc are oppositely arranged to form a grinding channel, and the driving device is used for driving the grinding roller device to rotate in the circumferential direction and generating preset grinding force on materials in the grinding channel; the device further comprises a pressure maintaining device, the pressure maintaining device is provided with a telescopic end and a fixed end which are oppositely arranged, the telescopic end has preset bearing pressure, the preset bearing pressure is equal to the preset grinding pressure, and the telescopic end is configured to be capable of driving the grinding disc to move in the direction away from the grinding roller device. The method has the advantage of reducing the proportion of the fine materials in the prepared medium materials.

Description

Technical Field

[0001] The utility model relates to the technical field of sandstone preparation, in particular to a grinding type pressure regulating 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] The existing double-roller sand making machine usually forms a certain distance between the fixed roller and the movable roller, and then drives the fixed roller and the movable roller to move inward in the opposite direction, thereby achieving material crushing. However, since the initial distance between the fixed roller and the movable roller of the existing equipment is fixed, the movable roller may be offset or move downward under gravity during operation, resulting in a small distance. At this time, the force exerted on the material by the movable roller and the fixed roller is large, which can easily lead to excessive crushing of the material, resulting in fine crushing of the crushed material, and it is difficult to obtain medium-crushed material.

[0004] Therefore, it is urgent for those skilled in the art to provide a sand making machine that can reduce the proportion of fine material in the prepared medium material. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the defects in the prior art, thereby providing a grinding type pressure regulating sand making machine.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A grinding type adjustable pressure sand making machine comprises a main body, a grinding disc, a grinding roller device and a driving device; the grinding roller device comprises a grinding roller, the grinding roller and the grinding disc are arranged opposite to each other to form a grinding channel, the driving device is used to drive the grinding roller device to rotate circumferentially and generate a preset grinding pressure on the material in the grinding channel; it also comprises a pressure maintaining device, the pressure maintaining device has a telescopic end and a fixed end arranged opposite to each other, the telescopic end has a preset bearing pressure, the preset bearing pressure is equal to the preset grinding pressure, and the telescopic end is configured to be able to drive the grinding disc to move in a direction away from the grinding roller device.

[0008] Preferably, the main body comprises an outer shell body fixedly connected into one body, the outer shell body is formed with a horizontal mounting platform, and the fixed end is fixedly arranged on the horizontal mounting platform.

[0009] Preferably, the outer shell at least surrounds and forms an accommodating cavity for accommodating the grinding disc, the grinding roller device and the pressure maintaining device.

[0010] Preferably, a connecting seat is provided on the side of the grinding disc facing away from the grinding roller device; and the connecting seat is rotatably connected to the telescopic end.

[0011] Preferably, the grinding disc includes a first grinding disc, a second grinding disc and a third grinding disc; the discharge end of the first grinding disc is fixedly connected to the second grinding disc, and the feed end of the first grinding disc is fixedly connected to the third grinding disc; the connecting seat is fixedly connected to the first grinding disc and the third grinding disc, and is located at the connecting position of the first grinding disc and the third grinding disc.

[0012] Preferably, a connection area between the connection seat and the first grinding disc is larger than a connection area between the connection seat and the third grinding disc.

[0013] Preferably, the grinding disc comprises at least a first grinding disc and a second grinding disc, the inner wall surface of the first grinding disc forms the first grinding disc surface, and the inner wall surface of the second grinding disc forms the second grinding disc surface; the grinding roller device comprises 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, a second grinding channel is formed between the grinding roller inclined surface and the second grinding disc surface, and the second grinding channel is located on one side of the discharge end of the first grinding channel; the width of the first grinding channel is greater than the width of the second grinding channel.

[0014] Preferably, the first grinding disc surface forms a first angle J1 with the horizontal plane, and the value range of the first angle J1 is 60° to 80°; the second grinding disc surface forms a second angle J2 with the horizontal plane, and the value range of the second angle J2 is 10° to 30°.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The above technical solution provides a grinding type pressure regulating sand making machine. This solution also connects the pressure maintaining device to the grinding disc, and the telescopic end of the pressure maintaining device has a set bearing pressure, so that when the actual pressure on the grinding disc exceeds the preset bearing pressure, the telescopic end of the pressure maintaining device can drive the grinding disc to move away from the grinding roller, thereby maintaining the distance, thereby avoiding excessive extrusion resulting in excessive proportion of fine materials, which cannot meet the requirements of preparing medium materials with preset specifications, affecting the material crushing effect. 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 connection between the middle body, the pressure-maintaining device and the grinding disc.

[0020] Description of reference numerals:

[0021] 1. Main body; 100. Grinding channel; 101. First grinding channel; 102. Second grinding channel; 11. Outer shell; 111. Horizontal mounting table; 112. Accommodating chamber; 2. Grinding disc; 21. First grinding disc; 22. Second grinding disc; 23. Third grinding disc; 24. Connecting seat; 201. First grinding disc surface; 202. Second grinding disc surface; 3. Grinding roller device; 301. Grinding roller end surface; 302. Grinding roller inclined surface; 32. Grinding roller; 4. Driving device; 5. Pressure maintaining device; 51. Telescopic end; 52. Fixed end. 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 2The embodiment of the utility model provides a grinding type pressure regulating sand making machine, comprising a main body 1, a grinding disc 2, a grinding roller device 3, a driving device 4 and a pressure maintaining device 5. The main body 1 is the main frame structure of the sand making machine, a grinding channel 100 is formed between the grinding disc 2 and the grinding roller device 3 (specifically, the grinding roller 32), the driving device 4 is used to drive the grinding roller device 3 to rotate, and then the grinding roller device 3 extrude and grind the material in the grinding channel 100, and the pressure maintaining device 5 is mainly used to adjust the spacing of the grinding channel 100 to prepare materials of preset specifications, and the setting of the pressure maintaining device 5 can avoid the material being stuck between the grinding disc 2 and the grinding roller device 3 or excessive extrusion resulting in the material being too small and unable to generate medium material or resulting in a small proportion of medium material.

[0026] The grinding disc 2, the grinding roller device 3, the driving device 4 and the pressure-maintaining device 5 can all be set to a variety of structures, which can be used to increase the proportion of medium materials and avoid fine crushing of materials.

[0027] See also Figure 2 In this embodiment, the grinding roller device 3 includes a grinding roller 32, which is arranged opposite to the grinding disc 2 to form a grinding channel 100, and the driving device 4 is used to drive the grinding roller device 3 to rotate circumferentially and generate a preset grinding force on the material in the grinding channel 100; the pressure-maintaining device 5 has a telescopic end 51 and a fixed end 52 arranged oppositely, and the telescopic end 51 has a preset bearing pressure, which is equal to the preset grinding force, and when the real-time grinding force on the grinding disc 2 exceeds the preset grinding force (that is, exceeds the preset bearing pressure of the telescopic end 51), the telescopic end 51 is configured to drive the grinding disc 2 to move away from the grinding roller device 3, wherein the preset bearing pressure and the preset grinding force can be set according to the actual generation requirements. This scheme can make it possible to adjust the spacing between the grinding disc 2 and the grinding roller device 3 to expand when the force exerted by the grinding disc 2 and the grinding roller device 3 on the material is too large, thereby avoiding the material being processed to be too small in size, and at the same time, it can also increase the service life of the grinding disc 2 and the grinding roller device 3. It is worth noting that, in this embodiment, the pressure-maintaining device 5 is configured as a telescopic cylinder, so that it can actively adjust the distance between the grinding disc 2 and the grinding roller device 3, thereby facilitating the control of the width of the grinding channel 100, so that the device can meet the needs of processing materials of different specifications.

[0028] Furthermore, in this embodiment, in order to increase the installation stability of the pressure maintaining device 5 , the main body 1 includes an outer shell 11 fixedly connected as one body, the outer shell 11 is formed with a horizontal mounting platform 111 , and the fixed end 52 is fixedly disposed on the horizontal mounting platform 111 .

[0029] Furthermore, in order to prevent material splashing and reduce noise, the outer shell 11 also surrounds and forms an accommodating chamber 112 for accommodating the grinding disc 2 , the grinding roller device 3 and the pressure maintaining device 5 .

[0030] See also Figure 2In this embodiment, the grinding disc 2 includes a first grinding disc 21, a second grinding disc 22 and a third grinding disc 23; the discharge end of the first grinding disc 21 is fixedly connected to the second grinding disc 22, and the feed end of the first grinding disc 21 is fixedly connected to the third grinding disc 23. Since the grinding disc 2 and the grinding roller device 3 are subjected to a reaction force in the process of crushing materials, and the grinding disc 2 is connected to the telescopic end 51 of the pressure-maintaining device 5, in order to increase the stability of the installation of the grinding disc 2, in this embodiment, a connecting seat 24 is provided on the side of the grinding disc 2 away from the grinding roller device 3, and the connecting seat 24 is fixedly connected to the first grinding disc 21 and the third grinding disc 23, and is located at the connecting position of the first grinding disc 21 and the third grinding disc 23.

[0031] Specifically, the connecting seat 24 is rotatably connected to the telescopic end 51, so that the grinding disc 2 can produce a certain rotation when excessive force is applied, so as to offset part of the force and avoid the force of the grinding disc 2 being transmitted to the telescopic end 51 when fixedly installed, causing the telescopic end 51 to be deformed due to excessive horizontal force, thereby affecting the pressure maintaining and regulating effect of the pressure maintaining device 5.

[0032] Furthermore, in order to further increase the stability of the support of the connecting seat 24 , the connecting area between the connecting seat 24 and the first grinding disc 21 is larger than the connecting area between the connecting seat 24 and the third grinding disc 23 .

[0033] See also Figure 2 In this embodiment, the grinding channel 100 includes a first grinding channel 101 and a second grinding channel 102 .

[0034] Specifically, the inner wall surface of the first grinding disc 21 forms the first grinding disc surface 201, and the inner wall surface of the second grinding disc 22 forms the 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 the second grinding channel 102 is located on one side of the discharge end of the first grinding channel 101. 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, and the pre-crushed material slides along the first grinding channel 101 to the second grinding channel 102 under the action of gravity for secondary crushing, thereby increasing the crushing efficiency.

[0035] 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 .

[0036] See also Figure 2In this embodiment, the first grinding disc surface 201 and the second grinding disc surface 202 form an obtuse angle, wherein the first grinding disc surface 201 forms a first angle J1 with the horizontal plane, J1 can be set to 60°, 70°, 75° or 80°, and the value range of the first angle J1 is 60° to 80°. The second grinding disc surface 202 forms a second angle J2 with the horizontal plane, and the value range of the second angle J2 is 10°, 20° or 30°. Of course, the value range of the second angle J2 is 10° to 30°.

[0037] 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 grinding type pressure regulating sand making machine, characterized in that: It comprises a main body (1), a grinding disc (2), a grinding roller device (3) and a driving device (4); The grinding roller device (3) comprises a grinding roller (32), the grinding roller (32) and the grinding disc (2) are arranged opposite to each other to form a grinding channel (100), and the driving device (4) is used to drive the grinding roller device (3) to rotate in a circumferential direction and generate a preset grinding pressure on the material in the grinding channel (100); The invention also comprises a pressure-maintaining device (5), wherein the pressure-maintaining device (5) comprises a telescopic end (51) and a fixed end (52) which are arranged opposite to each other, wherein the telescopic end (51) has a preset bearing pressure which is equal to the preset grinding pressure, and the telescopic end (51) is configured to be able to drive the grinding disc (2) to move in a direction away from the grinding roller device (3).

2. A grinding type pressure regulating sand making machine according to claim 1, characterized in that: The main body (1) comprises an outer shell (11) fixedly connected into one body. The outer shell (11) is formed with a horizontal mounting platform (111), and the fixed end (52) is fixedly mounted on the horizontal mounting platform (111).

3. A grinding type pressure regulating sand making machine according to claim 2, characterized in that: The outer shell (11) at least surrounds and forms a receiving cavity (112) for receiving the grinding disc (2), the grinding roller device (3) and the pressure maintaining device (5).

4. A grinding type pressure regulating sand making machine according to claim 1, characterized in that: A connecting seat (24) is provided on the side of the grinding disc (2) facing away from the grinding roller device (3); The connecting seat (24) is rotatably connected to the telescopic end (51).

5. A grinding type pressure regulating sand making machine according to claim 4, characterized in that: The grinding disc (2) comprises a first grinding disc (21), a second grinding disc (22) and a third grinding disc (23); The discharge end of the first grinding disc (21) is fixedly connected to the second grinding disc (22), and the feed end of the first grinding disc (21) is fixedly connected to the third grinding disc (23); The connecting seat (24) is fixedly connected to the first grinding disc (21) and the third grinding disc (23), and is located at the connecting position of the first grinding disc (21) and the third grinding disc (23).

6. A grinding type pressure regulating sand making machine according to claim 5, characterized in that: The connection area between the connection seat (24) and the first grinding disc (21) is larger than the connection area between the connection seat (24) and the third grinding disc (23).

7. The grinding type pressure regulating sand making machine according to claim 4, characterized in that: The grinding disc (2) comprises at least a first grinding disc (21) and a second grinding disc (22); the inner wall surface of the first grinding disc (21) forms a first grinding disc surface (201), and the inner wall surface of the second grinding disc (22) forms a second grinding disc surface (202); The grinding roller device (3) comprises 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), a second grinding channel (102) is formed between the grinding roller inclined surface (302) and the second grinding disc surface (202), and the second grinding channel (102) is located on one side of the discharge end of the first grinding channel (101); The width of the first grinding channel (101) is greater than the width of the second grinding channel (102).

8. The grinding type pressure regulating sand making machine according to claim 7, characterized in that: The first grinding disc surface (201) forms a first angle J1 with the horizontal plane, and the value range of the first angle J1 is 60° to 80°; The second grinding disc surface (202) forms a second angle J2 with the horizontal plane, and the value range of the second angle J2 is 10° to 30°.

Images