WO2014048159A1 - Mortar and mortar grinder - Google Patents

Description

 Research mortar and pestle grinder

Technical field

 The present invention relates to improvements in mortars and grinders, and more particularly to a mortar and pestle grinder. Background technique

 The mortar is a common container for grinding solid materials in experiments, including carcasses and mashes (or tamper) for grinding solid materials or for mixing powdery solids. The specifications are expressed by the size of the caliber. Commonly used porcelain products, mortars also have glass, agate, alumina, iron products, these mortars are used for a long time, easy to break, resulting in impurities in the material.

 The mortars commonly used on the market today are usually hand-grinded, and because the bottom of the carcass is flat, the contact between the carcass and the hammer is not tight enough, usually the point between the point on the hammer and the inner surface of the carcass. In contact with the surface, the contact area between the carcass and the tamper is small, and the material needs to be ground for a long time to achieve the desired effect, and the grinding efficiency is low.

 The grinder is a kind of pulverizer, which is a machine for pulverizing a large-sized solid raw material to a required size. The existing grinder usually has one or more pulverizing cavities, and the pulverizing cavity is large, and a large amount of material is ground and pulverized. There are few grinding machines for grinding small amounts of materials, and it is difficult to achieve high-precision pulverization requirements. Since the materials are all metal, etc., impurities and contaminants are often present, or the heat generated during the grinding process causes grinding. The material has deteriorated. Summary of the invention

In order to solve the problems of low efficiency of labor, high labor intensity, high impurity in the grinding process, insufficient fine grinding degree, low yield, and high ultra-high purity grinding, the present invention provides a mortar and pestle. Grinding machine, the shape and structure of the mortar provided by the invention are ingenious, high in grinding efficiency, time-saving and labor-saving, suitable for grinding solid powder or slurry, and high-purity corundum material is used in the mortar The grinding process does not produce impurities or deteriorates, and does not contaminate the material; the mortar provided by the invention can be used for manual grinding, mainly for mechanical grinding. The jaw type grinding machine provided by the invention can meet the requirements of fine grinding and pulverizing, has high grinding efficiency and fine particle size.

 In order to solve the above technical problems, the present invention adopts the following technical solutions:

 a mortar comprising a body and a hammer, the hammer comprising a hammer head and a hammer handle, the bottom surface of the hammer head being hemispherical; the body comprising a body wall and an annular track, a middle portion of the body is provided with a protrusion, and the annular track is formed between the inner surface of the body wall and the outer surface of the protrusion; the bottom of the circular track is a downwardly concave curved surface, and the cross section of the curved surface is Semi-circular, the semi-circular surface of the bottom of the track cooperates with the semi-circular surface of the bottom surface of the hammer.

 Preferably, the annular track is a circular orbit.

 The lower half of the spherical hammer of the hammer is matched with the semicircular bottom shape of the circular orbit. In the preparation process, the diamond grinding is used to obtain a high-precision spherical hammer head and a semi-circular curved surface at the bottom of the circular orbit. During the grinding process, the lower half of the hammer and the semicircular surface of the bottom of the circular orbit are in the grinding process. Filled with material, the lower half of the hammer head is fully abrasive.

Further, the radius of the semicircular cross section of the bottom of the annular track is R ₂ , and the radius of the spherical hammer head is R ranging from 0.01 to 0.5 mm. The difference between RJ-RJ is 0.01 mm, 0.05 mm, 0.1 mm, 0.2 mm, 0.3 mm, 0.4 mm, and 0.5 mm. Preferably, R2-Rf0. l-0.5mm.

The protrusions in the middle of the carcass avoid the concentration of material in the middle of the carcass during the grinding process, which affects the grinding efficiency. The curved cross section of the bottom of the circular orbit is semi-circular, such that the bottom of the circular orbit is matched with the half spherical surface of the spherical hammer, which increases the internal surface of the hammer and the crucible during the grinding process. The chance of contact. The gap between the curved surface and the spherical hammer head is small, which further improves the probability of contact between the hammer and the inner surface of the crucible. Therefore, the curved surface at the bottom of the carcass increases the contact area between the hammer and the carcass, thereby increasing the grinding area and improving the grinding efficiency. During the grinding process, the curved surface of the bottom of the circular orbit is filled with the material in the gap between the spherical hammer, and the contact area between the hammer and the body is larger, and the grinding area is larger, and the grinding efficiency is higher. The difference from 1^ can be determined according to the requirements to be achieved by the particle size of the ground material. The smaller the particle size of the ground material, the smaller the difference from 1^. Preferably, the circular track has a U-shaped cross section.

 Further, the protrusion is cylindrical, the outer surface of the bottom of the protrusion is a smooth curved surface, and the inner surface of the bottom of the body wall is a smooth curved surface, and the two curved surfaces are connected to form the circular orbit bottom. Preferably, the protrusion is cylindrical, and the cylindrical protrusion is equal to the height of the body wall.

The above research provided by the present invention can also be described in the following manner: The mortar includes a mortise body and a hammer, the tamper includes a hammer head and a hammer shank; the hammer head is a spherical hammer head, The bottom surface of the hammer head is hemispherical; the body includes a body wall, the middle portion of the body is provided with a protrusion, the protrusion is a cylindrical protrusion, and the outer surface of the bottom of the protrusion is a smooth curved surface, The inner surface of the bottom of the body wall is a smooth curved surface, and an annular track is formed between the inner surface of the body wall and the outer surface of the protrusion; the bottom of the circular track is a downwardly curved surface, and the circular track is circular A track having a curved cross section at the bottom of the toroidal track is semicircular such that a bottom of the toroidal track is fitted to a half of a spherical surface of the spherical hammer. Preferably, the radius of the semicircular cross section of the bottom of the annular track is R ₂ , and the radius of the spherical hammer head is 0.01-0.5 mm. Preferably, the cylindrical protrusion is equal in height to the body wall.

 The body and the hammer are made of a wear resistant material. Wear-resistant materials include high-purity corundum (also known as wear-resistant ceramics), silicon carbide, and wear-resistant steel.

Further, the material of the corpus callosum and the tamper is corundum, and the corundum is high-purity corundum; the content of A1 ₂ 0 ₃ in the corundum is 86-100%. Preferably, the content of A1 ₂ 0 ₃ in the corundum is 90%, 95%, 98%, 99%, and most preferably, the content of A1 ₂ 0 ₃ in the corundum is 99% or more.

 The present invention also provides a jaw type grinder comprising a power transmission mechanism and the above-mentioned mortar; the power transmission mechanism drives the hammer handle of the hammer; and the hammer head performs circular motion in the crucible body At the same time, it also rotates. The grinding method of the hammer's revolution and the rotation at the same time improves the grinding efficiency of the mortar.

Further, the grinding machine further includes: a grinding shaft, a boring shaft, a ring gear, a rolling arm, a pinion shaft, a pinion gear, an elastic connector, a mortar, a adjusting base, a bottom plate, a column; To support the adjustment seat and the column; the mortar includes a body and a hammer, the hammer includes a hammer handle and a hammer head, The hammer head is located in the crucible body, the crucible body is fixed on the adjusting seat; the column supports and fixes the crucible body, and the toothed ring is mounted on the lower surface of the crucible shaft; the power transmission mechanism Including a speed reducer, the speed reducer is mounted above the shaft body; the output end of the speed reducer is connected to the mortar shaft, the mortar shaft passes through the shaft body and the ring gear, and the connection body a rolling arm; a pinion shaft is mounted on the rolling arm, the pinion is mounted on an upper end of the pinion shaft, and external teeth of the pinion mesh with internal teeth of the ring gear; a lower end connecting the hammer handle of the hammer;

 When grinding the material, the height of the adjusting seat is adjusted to place the hammer in the body; the reducer drives the grinding shaft to rotate, the grinding shaft drives the roller arm to rotate, the rolling arm drives the pinion shaft to rotate, and the pinion shaft drives the wheel. The hammer makes a circular motion in the mortar. At the same time, the pinion gear at the upper end of the pinion shaft rolls in the ring gear, causing the pinion shaft to rotate, and the pinion shaft drives the hammer to rotate, thereby causing the hammer to perform circular motion in the body. At the same time, it also rotates.

 Further, the pinion shaft and the hammer handle are connected by an elastic connector. The elastic connector prevents the hammer head from colliding with the inner surface of the cymbal.

 Further, the grinder further includes a hammer sleeve, one end of the hammer sleeve is sleeved on the hammer handle, and the other end is connected to the pinion shaft through an elastic connector. The ring gear is mounted to the ram shaft via a sprocket flange.

 Further, the upper part of the adjusting seat is provided with a clip and a top nut, and the lower part is provided with a wrench and a lock nut; the clip and the top nut are used for fixing the body, and the wrench and the lock nut are used for adjusting Adjust the height of the seat.

 Further, the roller arm is in the shape of a disc, and 1-6 pinion shafts are mounted on the circumference of the disc shape; or the mill arm is a straight arm, and one end of the straight arm is respectively installed with a small arm Gear shaft.

 Further, the hammer sleeve is bonded to the hammer by an adhesive.

The grinder includes legs for supporting the bottom plate. The grinder further includes a hood and a hood door, the hood is mounted on the bottom plate, and one side of the hood is provided with an opening; the reducer is mounted above the hood; the hood is used to cover the grinder Other components; The hood door is installed at the opening of the hood to facilitate opening and closing, to isolate the mortar from the outside space to prevent foreign matter from entering the raft. Contaminant material in the body.

 Compared with the existing grinding machine, the rake grinding machine provided by the invention combines the mortar and the grinding machine, improves the grinding efficiency of the manual mortar, and enables the grinding machine to be used for grinding small portions, base to trace amount. materials. In the jaw type grinding machine provided by the invention, the roller arm drives the pinion shaft to perform circular motion, and the pinion shaft rotates, thereby driving the hammer to rotate while doing circular motion, so that the material is fully ground and improved. The grinding efficiency of the mortar. Moreover, the shape and the structure of the mortar provided by the invention are ingenious, and the cooperation between the body and the hammer is precise, so that the contact between the hammer and the material is changed from the contact mode of the original point and the surface to the contact mode of the surface and the surface. The area used for grinding between the tamper and the material is increased, which can meet the requirements of fine grinding and pulverizing, thereby improving the grinding efficiency, saving time and labor, and the fineness of the ground solid powder reaches 1-50 μηι, or even more. High fineness. Moreover, the mortar is made of wear-resistant material, the grinding process does not produce impurities, and does not pollute the processed material; wet or dry grinding, or low-temperature grinding, the grinding material does not deteriorate due to high temperature; The 钵-type grinder is available for ultra-high purity grinding with high grinding efficiency, finer grinding and higher yield. DRAWINGS

 1 is a schematic structural view of a jaw grinding machine provided by the present invention;

 Figure 2 is a cross-sectional view showing the Α-Α of the jaw grinding machine shown in Figure 1;

 Figure 3 is a perspective view showing the three-dimensional structure of the jaw type grinding machine shown in Figure 1;

 Figure 4 is a top plan view of the rake mill shown in Figure 1;

 Figure 5 is a perspective view showing the structure of the boring shaft of the jaw grinding machine provided by the present invention;

 Figure 6 is a longitudinal sectional view of the boring shaft body shown in Figure 5;

 7 is a schematic perspective structural view of a toothed ring of a jaw grinder provided by the present invention;

 Figure 8 is a perspective view showing the structure of a mill arm of a jaw grinder according to the present invention;

 Figure 9 is a longitudinal sectional view of the roller arm shown in Figure 8;

Figure 10 is a perspective view showing the structure of a pinion shaft of a jaw type grinding machine provided by the present invention; Figure 11 is a perspective view showing the elastic connector of the jaw type grinding machine of the present invention; Figure 12 is a schematic sectional view showing the elastic connector of Figure 11;

 Figure 13 is a perspective view showing the structure of a hammer holder of a jaw type grinding machine provided by the present invention;

 Figure 14 is a longitudinal sectional view of the hammer sleeve shown in Figure 13;

 Figure 15 is a perspective view showing the structure of the carcass of the mortar provided by the present invention;

 Figure 16 is a schematic top plan view of the body shown in Figure 15;

 Figure 17 is a cross-sectional view of the A-A of the body shown in Figure 15;

 Figure 18 is a longitudinal cross-sectional view showing another body of the mortar provided by the present invention;

 Figure 19 is a perspective view showing the structure of the clip of the jaw type grinding machine provided by the present invention;

 20 is a schematic perspective structural view of an adjustment seat of a jaw type grinding machine provided by the present invention;

 Figure 21 is a schematic structural view of a mortar shaft of a jaw grinder provided by the present invention;

 Figure 22 is a perspective view showing the structure of the tamper of the mortar provided by the present invention;

 Figure 23 is a front elevational view of the tamper shown in Figure 22;

 Figure 24 is a perspective view showing the structure of a leg of a jaw grinding machine provided by the present invention;

 Figure 25 is a perspective view showing the structure of a hood of a rake mill according to the present invention;

 26 is a schematic perspective structural view of a hood door of a jaw grinder provided by the present invention;

 Figure 27 is a perspective view showing the structure of a pinion gear of a jaw type grinding machine provided by the present invention;

 Figure 28 is an enlarged view of a portion indicated by X of the jaw grinding machine shown in Figure 2;

 Figure 29 is an enlarged view of a portion indicated by Y of the rake mill shown in Figure 2 .

Among them, 1 is the reducer, 2 is the 钵 shaft, 3 is the hex bolt, 4 is the gear ring, 5 is the roller arm, 6 is the pinion shaft, 7 is the elastic connector, 8 is the column, 9 is the hammer sleeve 10 is the body, 11 is the top nut, 12 is the clip, 13 is the adjustment seat, 14 is the wrench, 15 is the lock nut, 16 is the mortar shaft, 17 is the upper shaft of the shaft, 18 is the bearing, 19 is a toothed disc flange, 20 is a gasket, 21 is a hammer, 22 is a bottom plate, 23 is a small gasket, 24 is a leg, 25 is a hand wheel, 26 is a hood, 27 is a hood door, 28 is The pinion, 101 is a protrusion, 102 is a circular orbit, 103 is a body wall, 211 is a hammer, and 212 is a hammer handle. detailed description

 As shown in FIG. 1 to FIG. 27, the jaw grinding machine provided by the present invention comprises a speed reducer 1, a mortar shaft 16, a shaft body 2, a ring gear 4, a mill arm 5, a pinion shaft 6, and a pinion gear 28. Elastic connector 7, mortar, adjustment seat 13, bottom plate 22, column 8.

 As shown in FIGS. 1 to 4, the bottom plate 22 is used to support the adjustment seat 13 and the column 8; the mortar includes a body 10 and a hammer 21, as shown in FIG. 23, the hammer 21 includes a hammer handle. 212 and the hammer head 211, the body 10 is fixed on the adjusting seat 13, the upper part of the adjusting seat 13 is provided with a clip 12 and a top nut 11, and the lower part is provided with a wrench 14 and a lock nut 15; The clip 12 and the top nut 11 are used to fix the body 10, and the wrench 14 and the lock nut 15 are used to adjust the height of the adjustment seat 13.

 The A end of the ram shaft 2 is mounted with a speed reducer 1 whose B and D ends are fixed to the column 8 by hexagon bolts 3, and the ring gear 4 is mounted on the yoke body 2 via a spur flange 19 The speed reducer 1 is mounted above the shaft body 2; the output end of the speed reducer 1 is connected to the A end of the mortar shaft 16, and the mortar shaft 16 passes through the a through hole between the A end and the C end of the cymbal body 2 and a ring gear 4, the B end of the mortar shaft 16 is connected to the through hole A of the pulsator arm 5; the through hole of the pulverizing arm 5 A pinion shaft 6 is mounted on the B and the through hole C, and the pinion 28 is mounted at the A end of the pinion shaft 6, as shown in FIG. 29, the outer teeth of the pinion 28 and the inside of the ring gear 4 The teeth of the pinion shaft 6 are connected to the hammer shank 212 of the tamper 21 via an elastic connector 7, and the grinder further includes a hammer sleeve 9 and an A end sleeve of the hammer sleeve 9 On the hammer shank 212, the B end is connected to the B end of the pinion shaft 6 via an elastic connector 7.

 When the material is ground, the height of the adjusting seat 13 is adjusted to place the hammer 21 in the body 10; the speed reducer 1 drives the grinding shaft 16 to rotate, the grinding shaft 16 drives the roller arm 5 to rotate, and the rolling arm 5 drives the small The gear shaft 6 rotates, the pinion shaft 6 drives the tamper 21 to make a circular motion, and at the same time, the pinion 28 at the upper end of the pinion shaft 6 rolls in the ring gear 4, causing the pinion shaft 6 to rotate, and the pinion shaft 6 drives the tamper 21 Rotation, so that the hammer head rotates while performing a circular motion in the crucible body.

As shown in FIG. 5 to FIG. 6 , the present invention provides a boring body 2 of a jaw grinder, and a shaft end of the ram shaft 2 is mounted with a speed reducer 1 , and B and D ends thereof are fixed by the hexagon bolt 3 Column 8, on the The ring gear 4 is mounted on the C-end of the shaft body 2 via a toothed disc flange 19.

 As shown in Figs. 2, 7 and 29, the ring gear 4 of the jaw mill of the present invention is mounted on the C end of the shaft body 2 via a toothed disc flange 19.

 As shown in FIG. 8 to FIG. 9 , the mill arm 5 of the rake mill of the present invention is a straight arm, and the A end of the mill arm 5 is provided with a through hole (the tube is called a through hole A ), and the B end is provided with The through hole (the barrel is called the through hole B) and the C end are provided with a through hole (the tube called the through hole C), and the through hole A is connected to the B end of the mortar shaft 16; as shown in FIGS. 10 to 12, and FIG. As shown, the A end of the pinion shaft 6 passes through the through hole B and the through hole C, and is located above the swing arm 5; the pin end 28 of the pinion shaft 6 is mounted with the pinion 28, B end It is connected to the elastic connector 7.

 As shown in Figs. 13 and 14, the A end of the hammer holder 9 of the rake mill of the present invention is placed on the hammer handle 212, and the B end is connected to the elastic connector 7.

As shown in Fig. 15 to Fig. 18, Fig. 22, and Fig. 23, the mortar provided by the present invention includes a cartridge 10 and a tamper 21, as shown in Figs. 15 to 18, the body of the jaw grinder provided by the present invention. 10 includes a body wall 103, a protrusion 101 is formed in a middle portion of the body 10, and an annular track 102 is formed between an inner surface of the body wall 103 and an outer surface of the protrusion 101, and a bottom of the circular track 102 The curved surface is a semicircular cross section having a radius of R ₂ .

 As shown in Figures 22 and 23, the tamper 21 includes a hammer 211 and a hammer shank 212, the hammer 211 being spherical, and the spherical radius is .

As shown in FIGS. 16 and 17, the bottom curved surface of the circular orbital track 102 has a semicircular cross section, and the radius of the semicircular shape is R ₂ .

As shown in FIG. 17, the circular orbital track 102 has a U-shaped cross section. The bottom of the U shape is semicircular, and the radius of the semicircle is R ₂ . The cylindrical protrusion 101 is equal in height to the body wall 103, and the bottom of the circular track 102 has a semicircular cross section.

As shown in FIG. 18, FIG. 11 and FIG. 23, the protrusion 101 is cylindrical, the bottom of the circular orbital track 102 has a semicircular cross section, and the inner surface of the bottom portion is outside the hammerhead 210. The surface shape is adapted. The radius of the spherical hammer head is R _l the radius of the curved surface at the bottom of the circular orbital track R ₂ , R ₂ -R! ranges from 0.1 to 0.5 mm.

 As shown in Fig. 19, the clip 12 of the jaw grinder of the present invention is used with the jack nut 11 for fixing the cartridge 10.

 As shown in Fig. 20, the adjusting seat 13 of the jaw grinder of the present invention is used to support and fix the body 10.

 As shown in Fig. 21, the mortar shaft 16 of the jaw grinding machine of the present invention has an A end connected to the output end of the speed reducer 1 and a B end connected to the mill arm 5.

 As shown in Figure 24, the legs 24 of the jaw grinder of the present invention are used to support the bottom plate. As shown in Figures 25 and 26, the hood of the rake mill of the present invention is provided with an opening on one side thereof, and a hood door 27 is attached to the opening; the hood 26 and the hood door 27 are used to cover the hood Describe the research.

 As shown in Fig. 27, the present invention provides a pinion 28 of a jaw grinder which is mounted on the A end of the pinion shaft 6 and whose external teeth mesh with the internal teeth of the ring gear 4.

 As shown in FIGS. 2 and 28 and 29, the A end of the reduction gear 1 and the ram shaft 2 are connected by a flange upper flange 17, and a bearing 18 is disposed between the mortar shaft 16 and the A end of the cymbal body 2. A bearing is disposed between the mortar shaft 16 and the C end of the cymbal body 2.

 As shown in Fig. 29, the spacer 20 is disposed at the bottom of the B end of the mortar shaft 16, and the mortar shaft 16 is sealed in the through hole A of the mill arm 5.

 As shown in Fig. 2, the spacer 23 is disposed between the adjustment seat 13 and the hand wheel 25.

 Example 1

The invention provides a mortar made of corundum with a purity higher than 90% (the material of the mortar is not limited to corundum, and other wear-resistant materials such as silicon carbide, wear-resistant steel, etc.) may also be used. The mortar provided by the present invention includes a body 10 and a hammer 21, the hammer 21 includes a hammer head 211 and a hammer handle 212, the hammer head 211 is spherical; the body 10 includes a body wall 103, A cylindrical protrusion 101 is disposed in a middle portion of the body 10, and an annular track 102 is formed between an inner surface of the body wall 103 and an outer surface of the protrusion 101, and a cross section of the bottom of the circular track 102 is downwardly recessed. a curved surface, the curved surface is semicircular; the curved surface is adapted to an outer surface shape of the hammer head 211; the radius of the hammer head 211 is R _l The radius of the semicircular bottom of the circular orbital track 102 is R ₂ , Rs - RfO mnu , when the spherical hammer head 211 is ground in the circular orbital track 102, the inner surface of the bottom of the circular orbital track 102 and the hammerhead The gap between the lower half of the 211 sphere is filled with material. The above mortar is bulky and can be used to grind 50 grams of material.

 Example 2

The present invention provides a mortar made of a wear resistant material. The mortar provided by the present invention includes a body 10 and a hammer 21, the hammer 21 includes a hammer head 211 and a hammer handle 212, the hammer head 211 is spherical; the body 10 includes a body wall 103, A cylindrical protrusion 101 is disposed in a middle portion of the body 10, and an annular track 102 is formed between an inner surface of the body wall 103 and an outer surface of the protrusion 101. A cross section of the bottom of the circular track 102 is downwardly recessed. a semicircular curved surface; the curved surface is adapted to the shape of the outer surface of the hammerhead 211; the radius of the hammerhead 211 is R _l , and the radius of the semicircular bottom of the circular orbital track 102 is R ₂ , Rs- RfO.Olmma When the spherical hammer 211 is ground in the circular orbital track 102, a material is filled between the inner surface of the bottom of the circular orbital track 102 and the lower half of the spherical surface of the hammer bit 211.

 Example 3

The present invention provides a mortar made of ceramic. The mortar provided by the present invention includes a body 10 and a hammer 21, the hammer 21 includes a hammer head 111 and a hammer handle 212, the hammer head 211 is spherical; the body 10 includes a body wall 103, A cylindrical protrusion 101 is disposed in a middle portion of the body 10, and an annular track 102 is formed between an inner surface of the body wall 103 and an outer surface of the protrusion 101, and a cross section of the bottom of the circular track 102 is downwardly recessed. a semicircular curved surface; the curved surface is adapted to the shape of the outer surface of the hammerhead 211; the radius of the hammerhead 211 is R _l , and the radius of the semicircular bottom of the circular orbital track 102 is R ₂ , - = 0.2111111. When the spherical hammer 211 is ground in the circular orbital track 102, the gap between the inner surface of the bottom portion of the circular orbital track 102 and the lower half of the spherical surface of the hammer bit 211 is filled with material.

The material of the mortar provided by the above Examples 1-3 has a particle size of less than 50 μm, and the material of the mortar is a corundum having good abrasion resistance, and no impurities or contaminants are generated. The mortar is used for cryogenic grinding, It is not denatured by high temperatures.

 The same materials, such as carbonic acid 4 bow powder, were ground using the mortar provided in Examples 1-3 of the present invention and Comparative Examples 1, 2, and the results of the grinding were as shown in Table 1.

 Example 4

The present invention provides a jaw type grinder as described above, wherein the mortar is made of corundum having a purity of 99%. The radius of the hammer head 211 is R _{l and} the radius of the semicircular bottom of the circular orbital track 102 is R ₂ , - = 0.5111111. When the spherical hammer 211 is ground in the circular orbital track 102, the gap between the semicircular inner surface of the bottom of the circular orbital track 102 and the lower half of the spherical surface of the hammer bit 211 is filled with material. The above mortar is bulky and can be used to grind 50 grams of material.

 Example 5

The present invention provides a jaw type grinder as described above, wherein the mortar is made of a wear resistant ceramic. The radius of the hammer head 211 is R _l . The radius of the semicircular bottom of the circular orbital track 102 is R ₂ , RrRfO.Olmmo. When the spherical hammer head 211 is ground in the circular orbital track 102, the circular orbital track The gap between the semicircular inner surface of the bottom of the 102 and the lower half of the spherical surface of the hammer 211 is filled with material. The above mortar is bulky and can be used to grind 50 grams of material.

 Example 6

The present invention provides a jaw type grinder as described above, wherein the mortar is made of corundum having a purity of 99%. The radius of the hammerhead 211 is R. The radius of the semicircular bottom of the circular orbital track 102 is R ₂ , - = 0.2111111. When the spherical hammer 211 is ground in the circular orbital track 102, the gap between the inner surface of the bottom portion of the circular orbital track 102 and the lower half of the spherical surface of the hammer bit 211 is filled with material.

 Comparative example 1

A hand mortar, the mortar comprising a body and a tamper, the body comprising a body wall, wherein the middle portion of the file has a protrusion, and a majority of the area of the bottom between the protrusion and the body wall is planar. By using the mortar abrasive material, the contact area between the body and the hammer is small, the material is polished for a long time, the grinding efficiency is low, and it takes time and effort. Comparative example 2

 An jaw type grinder comprising a mortar, the mortar having a shape similar to that of the mortar provided in Embodiment 1, when the spherical hammer is moved in the circular orbit, the inner surface of the bottom of the circular orbit and the The gap between the lower half of the hammer head is 1 mm. By using the mortar abrasive material, since the contact between the carcass and the tamper is not tight enough, the material grinding time is prolonged and the polishing efficiency is low.

 The calcium carbonate was ground using a jaw mill provided in Examples 4-6 of the present invention, and the results of the polishing are shown in Table 2.

 Table 1 Abrasive effect data of Examples 1 to 3 and Comparative Examples 1, 2

由表 1 的数据得出， 本发明提供的研钵的研磨效率较高， 研磨出的产品 中 85%以上的粒径可达到 1-50μηι, 成品率高。 而对比例 1、 2提供的研钵， 研磨效率低。

It is concluded from the data of Table 1 that the grinding mortar provided by the present invention has high grinding efficiency, and more than 85% of the ground products have a particle size of 1-50 μηι, and the yield is high. The grinds provided in Comparative Examples 1 and 2 have low grinding efficiency.

 Table 2 Grinding effect data of Examples 4 to 6

 Pre-grinding material 90% after grinding After grinding for 10 minutes, after grinding for 20 minutes, the weight of the material of the particle size is less than 50μηι. The material of less than 50μηι is the percentage of the total weight of the material.

 Example 4 50 g more than 150μηι 52% 86%

 Example 5 50 g more than 150μηι 55% 88%

Example 6 50 g greater than 150 μηι 53% 87% From the data of Table 2, the rake mill provided by the present invention has higher grinding efficiency than the existing manual mortar and mobile grinder, and the rake grinder of the present application can perform fine grinding. Grinding a small amount or a small amount of material; more than 85% of the milled product can reach a particle size of 1-50μηι, and a material having a particle size of less than 50μηι has a higher yield. In addition, since the material of the mortar in the present application is made of a wear-resistant material, impurities are not mixed in the material, and low-temperature grinding can be performed, and the material is not denatured due to high temperature.

 The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All changes and modifications made in accordance with the teachings of the present invention are encompassed within the scope of the invention.

Claims

1. A mortar, characterized in that, the mortar includes a mortar body and a mortar hammer, and the mortar hammer includes a hammer head and a hammer handle; the hammer head is a spherical hammer head, and the bottom surface of the hammer head is a hemisphere. shape; the bowl body includes a bowl body wall, a protrusion is provided in the middle of the bowl body, the protrusion is a cylindrical protrusion, the outer surface of the bottom of the protrusion is a smooth curved surface, and the inner surface of the bottom of the bowl body wall is The surface is a smooth curved surface, and an annular track is formed between the inner surface of the bowl wall and the outer surface of the protrusion; the bottom of the annular track is a downwardly depressed curved surface, the annular track is a circular track, and the circular track is The curved cross-section of the bottom of the track is semicircular, so that the bottom of the annular track matches the half-spherical surface of the spherical hammer head. 2. The mortar according to claim 1, characterized in that the radius of the semicircle in the cross section of the bottom of the annular track is R ₂ , and the radius of the spherical hammer head has a difference of 0.01-0.5 mm. 3. The mortar according to claim 1, characterized in that the cylindrical protrusion is of the same height as the wall of the mortar body. 4. A mortar grinder, characterized in that, the grinder includes a power transmission mechanism and the mortar according to any one of claims 1 to 3; the power transmission mechanism drives the hammer handle of the mortar hammer; so that The hammer head performs circular motion in the bowl body and also rotates on its own axis. 5. The mortar grinder according to claim 4, characterized in that the grinder further includes a mortar shaft, a mortar shaft body, a ring gear, a grinding rod arm, a pinion shaft, a pinion gear, and an elastic connector. Adjustment seat, bottom plate, upright column; The bottom plate is used to support the adjustment seat and upright column; The mortar includes a mortar body and a mortar hammer, the mortar hammer includes a hammer handle and a hammer head, and the hammer head is located in the mortar body, The bowl body is fixed on the adjusting seat; the upright column supports and fixes the bowl shaft body, and the ring gear is installed below the bowl shaft body; the power transmission mechanism includes a reducer, and the reducer is installed Above the mortar shaft body; the output end of the reducer is connected to the mortar shaft, and the mortar shaft passes through the mortar shaft body and the toothed ring, and is connected to the roller arm; the roller arm A pinion gear shaft is installed on the arm, and the pinion gear is installed on the upper end of the pinion gear shaft. The external teeth of the pinion gear mesh with the internal teeth of the ring; the lower end of the pinion gear shaft is connected to the hammer of the bowl hammer. handle. 6. The bowl grinder according to claim 5, characterized in that the pinion shaft and the hammer handle are connected through an elastic connector. 7. The bowl grinder according to claim 5, characterized in that the grinder further includes a bowl hammer sleeve, one end of the bowl hammer sleeve is sleeved on the hammer handle, and the other end is connected to the pinion through an elastic connector. axes are connected. 8. The bowl grinder according to claim 5, characterized in that the upper part of the adjustment seat is provided with a clamp and a tightening nut, and the lower part is provided with a wrench and a locking nut; the clamp and the tightening nut are used for To fix the bowl body, the wrench and locking nut are used to adjust the height of the adjustment seat. 9. The bowl grinder according to claim 5, characterized in that, the grinding lever arm is disc-shaped, and 1-6 pinion gear shafts are installed on the circumference of the disc shape; or, the grinding lever arm is It is a straight arm, and a pinion shaft is installed at both ends of the straight arm. 10. The bowl grinder according to claim 7, wherein the bowl hammer sleeve is bonded to the bowl hammer through adhesive.