A portable ore sample grinding device

Abstract

The application discloses a portable ore sample grinding device and belongs to the technical field of grinding devices, characterized in that the device comprises a cylinder, the lower part of the cylinder is a grinding cavity, the grinding cavity is a sandwich layer between a grinding cylinder and a grinding rod, a threaded rod passes through a vertical cavity, a screw nut is arranged above the grinding rod, an inner sleeve and an outer sleeve are arranged above the screw nut, respectively, first and second shifting rods are arranged on the inner sleeve and the outer sleeve, respectively, pulleys are arranged above the inner sleeve and the outer sleeve, a rope is wound around the pulleys, and the two ends of the rope are fixed to the inner sleeve and the outer sleeve, respectively, a second spring is arranged on the inner sleeve, and the second spring applies a vertical downward force to the inner sleeve. Compared with the prior art, the device has the characteristics of conveniently and quickly grinding ore samples in the field.

Description

Technical Field

[0001] This invention relates to a grinding device, and more particularly to a portable mineral sample grinding device suitable for grinding mineral samples. Background Technology

[0002] Currently, when testing ore samples, staff typically need to grind them into fine powder before analysis. For laboratory operations, specialized crushing and screening machines are usually available, but these machines are large, electrically powered, and their use in the field is limited. Therefore, there is a need for a portable ore grinding device that is easy to operate in the field. Summary of the Invention

[0003] The technical objective of this invention is to address the shortcomings of the prior art by providing a portable mineral sample grinding device.

[0004] The technical solution of this invention to solve its technical problem is: a portable mineral sample grinding device, characterized in that: it includes a cylindrical body, the lower part of which is a grinding chamber, the grinding chamber being an interlayer between the grinding cylinder and the grinding rod, the upper part of which is a storage chamber, and the grinding chamber and the storage chamber are interconnected; the portions of the grinding cylinder and the grinding rod located within the grinding chamber are both flared cylindrical structures with a wider upper portion and a narrower lower portion, wherein the distance between the grinding cylinder and the grinding rod is wider at the top and narrower at the bottom, making the cross-sectional width of the grinding chamber wider at the top and narrower at the bottom in the horizontal direction; the lower end of the grinding chamber has an annular opening; the grinding rod has a vertical cavity in the middle, the threaded rod passes through the vertical cavity, and a lead screw is located above the grinding rod. The screw nut has a threaded hole in the middle that matches the threaded rod, through which the threaded rod passes. The screw nut is mounted on the cylinder and can only move in a circular motion around its axis, not axially. A series of vertical through holes are provided around the screw nut. Several vertical rods matching these through holes are provided at the upper end of the grinding rod. These vertical rods pass through the vertical holes in the screw nut, and their upper ends are higher than the upper edge of the screw nut. An inner sleeve and an outer sleeve are respectively provided above the screw nut. The inner sleeve is fitted onto the threaded rod, and the outer sleeve is fitted onto the outside of the inner sleeve. The inner side of the cylinder... The system includes a vertical slide rail, and the outer surface of the outer sleeve has a structure that matches the vertical slide rail, allowing the outer sleeve to slide vertically along the slide rail without rotating. The inner sleeve and outer sleeve are respectively equipped with a first lever and a second lever. The inner sleeve has a vertical opening on its side wall, through which the first lever passes. The middle position of the first lever is hinged to the inner sleeve, and the first lever is inclined with its inner side lower than its outer side. The inner end of the first lever rests against the tooth groove of the threaded rod. The outer sleeve has a vertical gap corresponding to the position of the first lever, through which the outer end of the first lever passes. The outer end of the first lever rests against a first liner block, which is fixed. Fixed on the inner side of the cylinder, the upper part of the first liner is inclined inward. When the first lever moves upward to a certain distance, the outer end of the first lever is pushed inward by the action of the first liner, and at the same time the inner end of the first lever rotates outward, so that the inner end of the first lever leaves the tooth groove of the threaded rod; the outer sleeve has a vertical opening on its side wall, and the second lever passes through the vertical opening on the outer sleeve. The middle position of the second lever is hinged to the outer sleeve, and the second lever is in an inclined state with the inner side higher than the outer side. The inner end of the second lever rests in the tooth groove of the threaded rod; the inner sleeve has a vertical gap at the position corresponding to the second lever, and the inner end of the second lever passes through the gap.The outer end of the second lever rests against the second liner, which is fixed to the inner side of the cylinder. The lower part of the second liner is inclined inward. When the second lever moves downward a certain distance, the action of the second liner pushes the outer end of the second lever inward, while the inner end of the second lever rotates outward, causing the inner end of the second lever to disengage from the tooth groove of the threaded rod. A return element is provided below the first lever and above the second lever. When the first lever moves downward and the second lever moves upward, the return element pushes the inner ends of both levers inward, causing them to engage in the tooth groove of the threaded rod. A pulley is provided above the inner sleeve and outer sleeve, with a rope wound around it. The two ends of the rope are fixed to the inner sleeve and outer sleeve respectively. A second spring is provided on the inner sleeve, applying a vertically downward force to the inner sleeve.

[0005] The inner side of the grinding cylinder and the outer side of the grinding rod are provided with a series of protruding ribs in the vertical direction.

[0006] A powder box is located at the bottom of the aforementioned cylindrical structure.

[0007] The powder box and the lower end of the cylinder are detachably connected.

[0008] The aforementioned cylinder has a feeding port located above the storage chamber.

[0009] The aforementioned grinding rod is equipped with a spring, through which a vertically downward force is applied to the grinding rod.

[0010] The aforementioned lead screw nut has a flange-like structure, including a cylindrical structure and a disc-shaped structure. The vertical through hole is located on the disc-shaped structure. A series of vertical keyways are provided on the outer wall of the cylindrical structure, and the vertical keyways extend to the vertical through hole. A series of vertical key teeth are provided on the inner side of the upper end of the grinding rod. The key teeth match the keyways and extend to the vertical rod.

[0011] The cylinder body is provided with a cover on top, and a hole is provided in the middle of the cover. The threaded rod passes through the hole, and the upper end of the threaded rod passes through the cover and protrudes from the cylinder body; a handle is provided at the upper end of the threaded rod.

[0012] The lower end of the aforementioned cylinder is provided with a base, which has a U-shaped structure and includes two vertical plates. The lower end of the cylinder is hinged to the vertical plates. A foot pedal is provided on each side of the base.

[0013] Compared with the prior art, the present invention has the following outstanding advantages:

[0014] 1. Easy to carry, suitable for field operations;

[0015] 2. It can both grind and impact, and through impact, it can effectively crush harder mineral particles. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure in state 1 of the present invention.

[0017] Figure 2 This is a schematic diagram of the structure in state 2 of the present invention.

[0018] Figure 3 This is a cross-sectional view along the axial direction in this invention.

[0019] Figure 4 This is an exploded view of the internal structure of the present invention.

[0020] Figure 5 This is a schematic diagram of the internal structure of the present invention. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. For ease of description, the terms "inner" and "outer" are used herein, unless specifically referring to being inside or outside a part. "Inner" refers to the direction toward the threaded rod 8, and "outer" refers to the direction away from the threaded rod 8.

[0022] like Figures 1 to 5 As shown, the main body of the invention is a cylindrical body 3, with a grinding chamber 18 at the bottom. The grinding chamber 18 is an interlayer between the grinding cylinder 19 and the grinding rod 17. The upper part of the grinding chamber 18 is a storage chamber 21, and the grinding chamber 18 communicates with the storage chamber 21. The grinding cylinder 19 can be the main body of the cylindrical body 3 or an independent cylindrical component for grinding. The portions of the grinding cylinder 19 and the grinding rod 17 located within the grinding chamber 18 are both funnel-shaped cylindrical structures 26, wider at the top and narrower at the bottom, with the distance between them being larger at the top and smaller at the bottom, meaning the cross-sectional width of the grinding chamber 18 is wider at the top and smaller at the bottom in the horizontal direction. The inner side of the grinding cylinder 19 and the outer side of the grinding rod 17 are provided with a series of protruding ribs in the vertical direction. When the grinding rod 17 rotates, the ribs squeeze and grind the mineral sample in the grinding chamber 18.

[0023] The lower end of the grinding chamber 18 is provided with an annular opening, through which the ground powdered mineral sample falls. A powder box 5 is provided below the cylinder 3, and the powder box 5 is detachably connected to the lower end of the cylinder 3, into which the ground powder falls.

[0024] The cylinder 3 is provided with a feeding port 4 located above the storage chamber 21, through which the mineral sample is put into the cylinder 3.

[0025] The grinding rod 17 is equipped with a spring 20, which applies a vertically downward force to the grinding rod 17. This causes the grinding rod 17 to compress and grind the mineral sample.

[0026] The grinding rod 17 has a vertical cavity in the middle, through which the threaded rod 8 passes. A lead screw nut 16 is located above the grinding rod 17, and the lead screw nut 16 has a threaded hole in the middle that matches the threaded rod 8, through which the threaded rod 8 passes. The lead screw nut 16 is mounted on the cylinder 3 via a bearing structure, allowing it to only move in a circular motion around its axis and preventing axial translation. When the threaded rod is moved up and down, it drives the lead screw nut 16 to rotate.

[0027] The lead screw nut 16 has a series of vertical through holes 28 around its periphery. The upper end of the grinding rod 17 has several vertical rods 15 that match the vertical through holes 28. The vertical rods 15 pass through the vertical holes of the lead screw nut 16, and the height of the upper end of the vertical rods 15 is higher than the height of the upper edge of the lead screw nut 16. When the lead screw nut 16 rotates, it drives the grinding rod 17 to rotate synchronously. In the optimized solution, the lead screw nut 16 has a flange-like structure, including a cylindrical structure 26 and a disc-shaped structure 27. The vertical through holes 28 are located on the disc-shaped structure 27. The outer wall of the cylindrical structure 26 has a series of vertical keyways 29, which extend to the vertical through holes 28. The inner side of the upper end of the grinding rod 17 has a series of vertical key teeth that match the keyways. The key teeth extend to the vertical rods 15. The combined action of the keyways and key teeth can improve the force-bearing performance between the lead screw nut 16 and the grinding rod 17.

[0028] An inner sleeve 30 and an outer sleeve 13 are respectively provided above the lead screw nut 16. The inner sleeve 30 is fitted onto the threaded rod, and the outer sleeve 13 is fitted onto the outside of the inner sleeve 30. A vertical slide rail 12 is provided on the inner side of the cylinder 3, and a structure 22 matching the slide rail 12 is provided on the outer side of the outer sleeve 13, allowing the outer sleeve 13 to slide vertically along the 12 without rotating. A first lever 11 and a second lever 14 are respectively provided on the inner sleeve 30 and the outer sleeve 13. A vertical opening is provided on the side wall of the inner sleeve 30, and the first lever 11 passes through the vertical opening on the inner sleeve 30. The middle position of the first lever 11 is hinged to the inner sleeve 30, and the first lever 11 is inclined in an inner-lower-outer-higher state. The inner end of the first lever 11 abuts in the tooth groove of the threaded rod. The outer sleeve 13 has a vertical gap at the position corresponding to the first lever 11. The outer end of the first lever 11 passes through the gap and abuts against the first liner 10. The first liner 10 is fixed on the inner side of the cylinder 3 and the upper part of the first liner 10 is inclined inward. When the first lever 11 moves upward to a certain distance, the outer end of the first lever 11 is pushed inward by the action of the first liner 10. At the same time, the inner end of the first lever 11 rotates outward, so that the inner end of the first lever 11 leaves the tooth groove of the threaded rod 8.

[0029] The outer sleeve 13 has a vertical opening on its side wall. The second lever 14 passes through the vertical opening on the outer sleeve 13 and is hinged to the outer sleeve 13 at its middle position. The second lever 14 is inclined with the inner end higher than the outer end, and its inner end rests in the tooth groove of the threaded rod 8. The inner sleeve 30 has a vertical gap at a position corresponding to the second lever 14, and the inner end of the second lever 14 passes through this gap. The outer end of the second lever 14 rests on the second liner 31, which is fixed to the inner side of the cylinder 3. The lower part of the second liner 31 is inclined inward. When the second lever 14 moves downward a certain distance, the action of the second liner 31 pushes the outer end of the second lever 14 inward, while the inner end of the second lever 14 rotates outward, causing the inner end of the second lever 14 to leave the tooth groove of the threaded rod 8.

[0030] A return element 23 is provided below the first lever 11 and above the second lever 14. When the first lever 11 moves to the top and the second lever 14 moves to the bottom, the outer ends of the two levers are pushed inward by the action of the bushing, and the inner ends of the two levers rotate outward to disengage from the tooth groove. When the first lever 11 moves to the bottom and the second lever 14 moves to the top, the return element 23 pushes the inner ends of the two levers inward to engage them in the tooth groove of the threaded rod 8.

[0031] A pulley 24 is provided above the inner sleeve 30 and the outer sleeve 13. A rope 25 is wound around the pulley 24. The two ends of the rope 25 are fixed to the inner sleeve 30 and the outer sleeve 13 respectively. When one of the sleeves moves downward, the other sleeve is pulled upward by the action of the rope 25 and the pulley 24.

[0032] The inner sleeve 30 is equipped with a second spring 9, which applies a vertically downward force to the inner sleeve 30. When the threaded rod 8 is pulled upward, the threaded rod 8 drives the first lever 11 to move upward, and the first lever 11 drives the inner sleeve 30 to move upward. When it moves to a certain height, the first liner 10 pushes the outer end of the first lever 11 inward, and the inner end of the first lever 11 disengages from the groove of the threaded rod 8. The second spring 9 pushes the inner sleeve 30 to move downward quickly. The lower end face of the inner sleeve 30 impacts the upper end face of the vertical rod 15 of the grinding rod, so that the grinding rod 17 impacts the mineral sample in the grinding chamber 18, thereby breaking up larger mineral sample particles.

[0033] When the threaded rod 8 is pressed down, the threaded rod 8 drives the second lever 14 to move downward, and the second lever 14 drives the outer sleeve 13 to move downward. Through the action of the pulley 24 and the rope 25, the inner sleeve 30 is driven to move upward. Since the second spring 9 applies a downward force to the inner sleeve 30, through the action of the pulley 24 and the rope 25, this force is converted into the tension of the rope 25, that is, the rope 25 applies an upward force to the outer sleeve 13. When it moves downward to a certain position, the second pad 31 pushes the outer end of the second lever 14 inward, and the inner end of the second lever 14 disengages from the tooth groove of the threaded rod 8. Through the action of the rope 25, the outer sleeve 13 is pulled upward quickly. At the same time, through the action of the second spring 9, the inner sleeve 30 is pushed downward quickly. The lower end face of the inner sleeve 30 impacts the grinding rod 17, and the grinding rod 17 impacts the mineral sample in the grinding chamber 18.

[0034] The cylinder body 3 is provided with a cylinder cover 2 on top, and the cylinder cover 2 has a hole in the middle. The threaded rod 8 passes through the hole, and the upper end of the threaded rod 8 protrudes from the cylinder body 3 through the cylinder cover 2. The upper end of the threaded rod 8 is provided with a handle 1 for easy hand operation.

[0035] The lower end of the cylindrical body 3 is provided with a base 6, which has a U-shaped structure and includes two vertical plates. The lower end of the cylindrical body 3 is hinged to the vertical plates, allowing the cylindrical body 3 and the base 6 to rotate at a certain angle. Each side of the base 6 is provided with a pedal 7. When in use, both feet step on the pedal 7 to fix the lower end of the cylindrical body 3. The inner end of the pedal 7 is hinged to the base 6. When not in use, the pedal 7 can be flipped upwards and folded away, resulting in a compact structure.

[0036] During use, the operator puts the mineral sample into the feeding port 4, then steps on the handle 1 with both feet to pull up and press down. By pulling up and down the threaded rod 8, the grinding rod 17 is rotated, and the mineral sample is ground by the rotation. At the same time, the threaded rod 8 drives the inner sleeve 30 to impact the grinding rod 17, and the mineral sample is ground into powder by the impact. The powder falls into the powder box 5, thus completing the grinding of the mineral sample.

[0037] It should be noted that the specific embodiments of the present invention have been described in detail. For those skilled in the art, various obvious changes made to it without departing from the spirit and scope of the present invention are within the protection scope of the present invention.

Claims

1. A portable mineral sample grinding device, characterized in that: The device includes a cylindrical body, with a grinding chamber at the bottom, which is a sandwich between the grinding cylinder and the grinding rod. The upper part of the grinding chamber is a storage chamber, which is interconnected with the grinding chamber. Both the grinding cylinder and the grinding rod within the grinding chamber are funnel-shaped structures, wider at the top and narrower at the bottom. The distance between the grinding cylinder and the grinding rod is wider at the top and narrower at the bottom, resulting in a horizontal cross-sectional width of the grinding chamber that is wider at the top and narrower at the bottom. The lower end of the grinding chamber has an annular opening. The grinding rod has a vertical cavity in the middle, through which a threaded rod passes. A lead screw nut is located above the grinding rod, and the lead screw nut has a threaded hole in the middle that matches the threaded rod, through which the threaded rod passes. The lead screw nut is mounted on the cylindrical body. It can only move in a circular motion around its axis and cannot translate along the axial direction; the lead screw nut has a series of vertical through holes around its periphery, and the upper end of the grinding rod has several vertical rods that match the vertical through holes. The vertical rods pass through the vertical holes of the lead screw nut, and the height of the upper end of the vertical rod is higher than the height of the upper edge of the lead screw nut; an inner sleeve and an outer sleeve are respectively provided above the lead screw nut; the inner sleeve is fitted onto the threaded rod, and the outer sleeve is fitted onto the outside of the inner sleeve; a vertical slide rail is provided on the inner side of the cylinder, and a structure matching the vertical slide rail is provided on the outer side of the outer sleeve so that the outer sleeve can slide vertically along the slide rail but cannot rotate; a first lever and a second lever are respectively provided on the inner sleeve and the outer sleeve; the inner sleeve... A vertical opening is provided on the side wall of the cylinder. The first lever passes through the vertical opening on the inner sleeve. The middle position of the first lever is hinged to the inner sleeve. The first lever is inclined with the inner side lower than the outer side. The inner end of the first lever rests in the tooth groove of the threaded rod. A vertical gap is provided on the outer sleeve at the position corresponding to the first lever. The outer end of the first lever passes through the gap and rests on the first liner. The first liner is fixed on the inner side of the cylinder. The upper part of the first liner is inclined inward. When the first lever moves upward to a certain distance, the action of the first liner pushes the outer end of the first lever inward, and at the same time, the inner end of the first lever rotates outward, so that the inner end of the first lever leaves the tooth groove of the threaded rod. The outer sleeve has a vertical opening on its side wall. The second lever passes through the vertical opening on the outer sleeve and is hinged to the outer sleeve at its middle position. The second lever is inclined with the inside higher than the outside, and the inner end of the second lever rests in the tooth groove of the threaded rod. The inner sleeve has a vertical gap at the position corresponding to the second lever, and the inner end of the second lever passes through the gap. The outer end of the second lever rests on the second liner. The second liner is fixed on the inner side of the cylinder and the lower part of the second liner is inclined inward. When the second lever moves downward to a certain distance, the action of the second liner will push the outer end of the second lever inward, and at the same time, the inner end of the second lever will rotate outward, so that the inner end of the second lever leaves the tooth groove of the threaded rod.Below the first lever and above the second lever, there are return elements. When the first lever moves to the lower position and the second lever moves to the upper position, the return elements push the inner ends of both levers inward, causing them to engage in the grooves of the threaded rod. A pulley is located above the inner sleeve and outer sleeve, with a rope wound around it. The two ends of the rope are fixed to the inner sleeve and outer sleeve, respectively. A second spring is located on the inner sleeve, applying a vertically downward force to it.

2. The portable mineral sample grinding device according to claim 1, characterized in that: The inner side of the grinding cylinder and the outer side of the grinding rod are provided with a series of protruding ribs in the vertical direction.

3. The portable mineral sample grinding device according to claim 1, characterized in that: A powder box is provided at the bottom of the cylindrical structure.

4. A portable mineral sample grinding device according to claim 3, characterized in that: The powder box is detachably connected to the lower end of the cylinder.

5. A portable mineral sample grinding device according to claim 1, characterized in that: The cylinder is provided with a feeding port located above the storage chamber.

6. The portable mineral sample grinding device according to claim 1, characterized in that: The grinding rod is equipped with a spring, which applies a vertically downward force to the grinding rod.

7. A portable mineral sample grinding device according to claim 1, characterized in that: The lead screw nut has a flange-like structure, including a cylindrical structure and a disc-shaped structure. The vertical through hole is located on the disc-shaped structure. A series of vertical keyways are provided on the outer wall of the cylindrical structure, and the vertical keyways extend to the vertical through hole. A series of vertical key teeth are provided on the inner side of the upper end of the grinding rod. The key teeth match the keyways and extend to the vertical rod.

8. A portable mineral sample grinding device according to claim 1, characterized in that: The cylinder body is provided with a cylinder cover on top, and a hole is provided in the middle of the cylinder cover. The threaded rod passes through the hole, and the upper end of the threaded rod passes through the cylinder cover and protrudes from the cylinder body; a handle is provided at the upper end of the threaded rod.

9. A portable mineral sample grinding device according to claim 1, characterized in that: The lower end of the cylinder is provided with a base, which has a U-shaped structure and includes two vertical plates. The lower end of the cylinder is hinged to the vertical plates. A foot pedal is provided on each side of the base.

Images