Adjustable-pressure sand making machine

Abstract

The utility model relates to a pressure-regulating sand making machine which comprises a main body, a millstone, a grinding roller device and a driving device, the grinding roller device comprises a grinding roller, and the grinding roller and the millstone are oppositely arranged to form a grinding channel; the driving device comprises a grinding roller mounting shaft and a rotating shaft part for driving the grinding roller mounting shaft to rotate; the grinding device further comprises a pressure maintaining device installed on the rotating shaft part, the pressure maintaining device is provided with a telescopic end and a fixed end which are oppositely arranged, and the telescopic end is connected with the grinding roller installation shaft and has a motion state for driving the grinding roller installation shaft to move in the axial direction so as to adjust the distance between the grinding channels. 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 sand making equipment, in particular to a 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 industrial sectors such as sand making, mineral processing, cement, metallurgy, chemical industry, building materials, etc. 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 moving roller and the fixed roller, and then drives the fixed roller and the moving roller to move inward in the opposite direction, thereby achieving material crushing. However, since the initial distance between the moving roller and the fixed roller of the existing equipment is fixed, the moving roller may deviate or move downward under gravity during operation, resulting in a small distance. At this time, the force exerted on the material between the moving 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 pressure regulating sand making machine.

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

[0007] A pressure regulating sand making machine comprises a main body, a grinding disc, a grinding roller device and a driving device, wherein the grinding roller device comprises a grinding roller, and the grinding roller and the grinding disc are arranged opposite to each other to form a grinding channel; the driving device comprises a grinding roller mounting shaft and a rotating shaft portion for driving the grinding roller mounting shaft to rotate; and further comprises a pressure maintaining device mounted on the rotating shaft portion, wherein the pressure maintaining device comprises a telescopic end and a fixed end arranged opposite to each other, the telescopic end is connected to the grinding roller mounting shaft, and has a motion state of driving the grinding roller mounting shaft to move axially to adjust the spacing of the grinding channel.

[0008] Preferably, it also includes a displacement sensor for detecting the displacement distance of the telescopic end; the displacement sensor is connected to the pressure maintaining device.

[0009] Preferably, the main body includes a base frame, a middle frame and an upper shell which are arranged in a split type; the middle frame is installed on the upper end of the base frame, and the upper shell is installed on the upper end of the middle frame to form a accommodating cavity for accommodating the grinding disc and the grinding roller device.

[0010] Preferably, the grinding disc is rotatably mounted on the upper shell; along the axial direction of the rotating shaft portion, the grinding disc at least forms an offset abutment with the middle frame.

[0011] Preferably, a first abutting gear ring is provided on the grinding disc, and a second abutting gear ring is provided on the middle frame; the first abutting gear ring is rotatably connected with the second abutting gear ring.

[0012] Preferably, the base frame and the middle frame are connected via a telescopic driving member; the telescopic driving member has a fixed lower end and a telescopic upper end that are relatively arranged, the fixed lower end is fixedly connected to the base frame, and the telescopic upper end is fixedly connected to the middle frame.

[0013] Preferably, it also includes a locking device, which includes a rotary drive member and a rotary locking block rotatably mounted on the rotary drive member; the rotary drive member is fixed to the upper end of the middle frame; the rotary locking block has a third tightening gear ring, and the third tightening gear ring has an unlocked state of rotating away from the first tightening gear ring, and a locked state of rotating to be offset and tightened with the first tightening gear ring.

[0014] Preferably, a grinding disc driving member is also included; the grinding disc driving member includes a power source, a driving wheel and a driven wheel, and the driven wheel is fixedly connected to the grinding disc.

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

[0016] The above technical solution provides a pressure regulating sand making machine, in which the telescopic end of the pressure maintaining device is connected to the grinding roller mounting shaft, so that the telescopic end of the pressure maintaining device can drive the grinding roller mounting shaft to drive the grinding roller device to move axially, thereby adjusting the spacing of the grinding channels to avoid excessive extrusion resulting in excessive proportion of fine materials, which cannot meet the requirements of preparing medium materials with preset specifications and affect 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 This is a structural diagram of one implementation of the utility model.

[0019] Figure 2 for Figure 1 Schematic diagram of the positions of the pressure holding device and the driving device.

[0020] Figure 3 for Figure 1 A magnified schematic diagram of the D1 position in the figure.

[0021] Description of reference numerals:

[0022] 100. grinding channel; 112. accommodating chamber; 1. main body; 12. base frame; 13. middle frame; 131. second abutting gear ring; 14. upper shell; 2. grinding disc; 25. first abutting gear ring; 26. grinding disc driving member; 261. power source; 262. driving wheel; 263. driven wheel; 3. grinding roller device; 32. grinding roller; 4. driving device; 40. rotating shaft; 42. grinding roller mounting shaft; 5. pressure maintaining device; 51. telescopic end; 52. fixed end; 6. telescopic driving member; 61. fixed lower end; 62. telescopic upper end; 7. locking device; 71. rotating driving member; 72. rotating locking block; 721. third tight gear ring; 10. displacement sensor. DETAILED DESCRIPTION

[0023] 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.

[0024] 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.

[0025] 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.

[0026] See also Figures 1 to 3The embodiment of the utility model provides a 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 holding 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 holding device 5 is mainly used to adjust the spacing of the grinding channel 100 to prepare materials of preset specifications. The setting of the pressure holding 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.

[0027] Specifically, in this embodiment, the grinding roller 32 of the grinding roller device 3 is arranged opposite to the grinding disc 2 to form a grinding channel 100; the driving device 4 includes a grinding roller mounting shaft 42 and a rotating shaft portion 40 driving the grinding roller mounting shaft 42 to rotate; the pressure-maintaining device 5 is installed on the rotating shaft portion 40, and has a telescopic end 51 and a fixed end 52 arranged oppositely; the telescopic end 51 is connected to the grinding roller mounting shaft 42, and has a motion state of driving the grinding roller mounting shaft 42 to move axially to adjust the spacing of the grinding channel 100. The pressure-maintaining device 5 can be set as a piston cylinder, and its telescopic end 51 can be set as a piston rod.

[0028] See also Figure 2 In order to increase the accuracy of detection, in the present embodiment, the pressure-maintaining device 5 further includes a displacement sensor 10 for detecting the displacement distance of the telescopic end 51. The displacement sensor 10 is connected to the pressure-maintaining device 5, so that the pressure-maintaining device 5 can adjust the telescopic distance of the telescopic end 51 according to the displacement of the telescopic end 51 detected by the displacement sensor 10. For example, the displacement sensor 10 is connected to the pressure-maintaining device 5 through a control device (such as a single-chip microcomputer, etc.), and the control device can preset the displacement standard parameters. The real-time displacement data of the telescopic end 51 detected by the displacement sensor 10 can be compared with the preset displacement standard parameters. When the real-time displacement data is greater than the preset displacement standard parameters, it indicates that the telescopic end 51 is excessively displaced, the grinding roller mounting shaft 42 drives the grinding roller device 3 to move too far, and the spacing of the grinding channel 100 becomes smaller. At this time, the telescopic end 51 can be adjusted to be telescopic, thereby increasing the accuracy of the spacing adjustment of the grinding channel 100.

[0029] In order to facilitate equipment maintenance and replacement of structural parts, in the present embodiment, the main body 1 includes a base frame 12, a middle frame 13 and an upper shell 14 which are arranged in a split manner; the middle frame 13 is installed on the upper end of the base frame 12, and the upper shell 14 is installed on the upper end of the middle frame 13 to form a accommodating chamber 112 for accommodating the grinding disc 2 and the grinding roller device 3.

[0030] In order to facilitate the maintenance of the grinding disc 2 without affecting its stability during use, the grinding disc 2 is rotatably mounted on the upper shell 14; along the axial direction of the rotating shaft 40, the grinding disc 2 at least forms a misaligned abutment with the middle frame 13. There are many ways of "misaligned abutment", which can achieve the axial tight limit of the grinding disc 2 and the middle frame 13 when the grinding disc 2 and the grinding roller device 3 crush the material, and at the same time, can not affect the rotation of the grinding disc 2 during the maintenance or replacement process.

[0031] Specifically, the grinding disc 2 is rotatably mounted on the upper housing 14 and driven by the grinding disc driver 26; the grinding disc driver 26 includes a power source 261, a driving wheel 262 and a driven wheel 263, and the driven wheel 263 is fixedly connected to the grinding disc 2, so that when the grinding disc 2 needs to be replaced or repaired, the grinding disc 2 can be driven to rotate away from the grinding roller device 3, so as to facilitate the operation of the operator. A first abutting gear ring 25 is provided on the grinding disc 2, and a second abutting gear ring 131 is provided on the middle frame 13; the first abutting gear ring 25 is rotatably connected with the second abutting gear ring 131.

[0032] Furthermore, in order to reduce the rotational resistance between the first clamping gear ring 25 and the second clamping gear ring 131 (during maintenance) while ensuring the clamping effect of the two (when crushing materials), the base frame 12 and the middle frame 13 are connected by a telescopic drive member 6; the telescopic drive member 6 has a fixed lower end 61 and a telescopic upper end 62 that are relatively arranged, the fixed lower end 61 is fixedly connected to the base frame 12, and the telescopic upper end 62 is fixedly connected to the middle frame 13, so that after the grinding disc 2 rotates to a position relative to the grinding roller device 3, the telescopic drive member 6 can axially tighten the middle frame 13, thereby making the first clamping gear ring 25 and the second clamping gear ring 131 clamped.

[0033] Furthermore, the present device also includes a locking device 7, which includes a rotating driving member 71 and a rotating locking block 72 rotatably mounted on the rotating driving member 71; the rotating driving member 71 is fixed to the upper end of the middle frame 13; the rotating locking block 72 has a third tightening gear ring 721, and the third tightening gear ring 721 has an unlocking state of rotating away from the first tightening gear ring 25, and a locking state of rotating to be offset and tightened with the first tightening gear ring 25.

[0034] 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 pressure regulating sand making machine, comprising a main body (1), a grinding disc (2), a grinding roller device (3) and a driving device (4), characterized in that: The grinding roller device (3) comprises a grinding roller (32), wherein the grinding roller (32) and the grinding disc (2) are arranged opposite to each other to form a grinding channel (100); The driving device (4) comprises a grinding roller installation shaft (42) and a rotating shaft portion (40) for driving the grinding roller installation shaft (42) to rotate; The invention also comprises a pressure-maintaining device (5) mounted on the rotating shaft portion (40), wherein the pressure-maintaining device (5) comprises a telescopic end (51) and a fixed end (52) arranged opposite to each other, wherein the telescopic end (51) is connected to the grinding roller mounting shaft (42) and has a motion state for driving the grinding roller mounting shaft (42) to move axially so as to adjust the spacing of the grinding channels (100).

2. The pressure regulating sand making machine according to claim 1, characterized in that: It also includes a displacement sensor (10) for detecting the displacement distance of the telescopic end (51); The displacement sensor (10) is connected to the pressure maintaining device (5).

3. The pressure regulating sand making machine according to claim 1, characterized in that: The main body (1) comprises a base frame (12), a middle frame (13) and an upper shell (14) which are arranged in a split manner; The middle frame (13) is mounted on the upper end of the base frame (12), and the upper shell (14) is mounted on the upper end of the middle frame (13) to form a receiving chamber (112) for receiving the grinding disc (2) and the grinding roller device (3).

4. The pressure regulating sand making machine according to claim 3, characterized in that: The grinding disc (2) is rotatably mounted on the upper housing (14); Along the axial direction of the rotating shaft portion (40), the grinding disc (2) at least forms an offset abutment with the middle frame (13).

5. The pressure controlled sand-sanding machine according to claim 4, characterized in that: The grinding disc (2) is provided with a first abutting gear ring (25), and the middle frame (13) is provided with a second abutting gear ring (131); The first abutting gear ring (25) is rotatably connected to the second abutting gear ring (131).

6. The pressure regulating sand making machine according to claim 5, characterized in that: The base frame (12) and the middle frame (13) are connected via a telescopic driving member (6); The telescopic driving member (6) comprises a fixed lower end (61) and a telescopic upper end (62) which are arranged opposite to each other, the fixed lower end (61) being fixedly connected to the base frame (12), and the telescopic upper end (62) being fixedly connected to the middle frame (13).

7. The pressure controlled sand-sanding machine according to claim 5, characterized in that: It also includes a locking device (7), wherein the locking device (7) includes a rotary drive member (71) and a rotary locking block (72) rotatably mounted on the rotary drive member (71); The rotary drive member (71) is fixedly mounted on the upper end of the middle frame (13); The rotating locking block (72) has a third tightening gear ring (721), and the third tightening gear ring (721) has an unlocking state in which it is rotated away from the first abutting gear ring (25), and a locking state in which it is rotated to be offset and tightened with the first abutting gear ring (25).

8. The pressure controlled sand-sanding machine according to claim 4, characterized in that: Also includes a grinding disc drive member (26); The grinding disc driving member (26) comprises a power source (261), a driving wheel (262) and a driven wheel (263), and the driven wheel (263) is fixedly connected to the grinding disc (2).

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