Ceramic rotor of horizontal sand mill

Abstract

The invention relates to a ceramic rotor of a horizontal sand mill applied to the related technical field of rotors, a split part assembled structure is adopted, internal parts can be made of stainless steel or aluminum alloy materials, all parts in contact with materials are made of zirconium oxide materials, and compared with an integrated structure in the prior art, the ceramic rotor of the horizontal sand mill can avoid material pollution and reduce production cost. The ring can be locally replaced after being damaged, so that the use cost is reduced; besides, under the arrangement of the internal wear monitoring unit, wear monitoring can be carried out on the contact positions of the left rod pin and the right rod pin with the flat key rod, and when local wear occurs at the inner wall, the rough wear position can be positioned, so that a worker can conveniently and timely discover and carry out local replacement, the stability of the rotor during rotation is effectively ensured, and the service life of the rotor is prolonged. Therefore, the quality of finished materials ground by the sand mill is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to a ceramic rotor for a horizontal sand mill, and in particular to a ceramic rotor for a horizontal sand mill applied in the technical field of rotors. Background Art

[0002] The horizontal sand mill grinds the material to a fine degree through the grinding medium, and the rotor provides power for the grinding medium. The high-speed rotation of the rotor drives the medium to collide with the material at high speed for the grinding process. Conventional alloy steel rotors will wear and contaminate the material during grinding and are not suitable for grinding high-quality materials. Therefore, rotors made of zirconium oxide ceramic materials are generally used, which have good wear resistance, long service life, and are not easy to contaminate materials.

[0003] However, since zirconia ceramic materials are very expensive, when they are made into an integrated structure rotor, the price is too high, and when partially damaged, they cannot be repaired and can only be replaced as a whole, resulting in high maintenance costs. To solve this problem, the rotor is generally set to a split structure so that it can be partially replaced after wear to reduce waste. For example, the specification of Chinese patent CN117101801A discloses a rotor device for a horizontal sand mill, and the specification of Chinese patent CN119237099A discloses a grinding structure for a horizontal sand mill.

[0004] During regular maintenance and inspection, the external wear of the split structural parts can be observed intuitively. However, when the multiple separately set rod pins on the rotor are in use, due to the conflict with the material or grinding medium, the inner wall of the rod pin is prone to unilateral excessive wear. This wear is difficult to observe, especially when the wear degree is not high, it is difficult to detect, but when rotating, its stability will decrease, affecting the grinding quality of the material. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the one-piece rotor made of zirconia ceramic material is difficult to repair after local wear and needs to be replaced as a whole, resulting in high maintenance costs.

[0006] In order to solve the above problems, the present invention provides a horizontal sand mill ceramic rotor, comprising a spindle housing, a spindle is installed in the middle of the spindle housing through a bearing, a pulley is installed at one end of the spindle, a rod pin unit is installed at the other end of the spindle, an end cover is arranged between the spindle housing and the rod pin unit, the end cover is installed at the end of the spindle housing, and the spindle passes through the end cover, the rod pin unit comprises a left rod pin assembly and a right rod pin assembly, the left rod pin assembly is located at a side of the right rod pin assembly close to the spindle housing, and a positioning unit is arranged at the left rod pin assembly and the right rod pin assembly; The left rod pin assembly includes a rotor core fixedly mounted outside the main shaft, a plurality of fan-shaped blade spacers sleeved outside the rotor core, and a plurality of groups of left rod pins respectively mounted between two adjacent annular blade spacers, each group of left rod pins is provided with a plurality of wedge-shaped limiting grooves are cut at the outer end of the annular blade spacer, the plurality of left rod pins respectively penetrate the plurality of wedge-shaped limiting grooves and contact the surface of the rotor core, the right rod pin assembly includes a plurality of groups of right rod pins distributed in an annular array and a plurality of groups of fan-shaped blade spacers distributed in an annular array, the adjacent right rod pins and fan-shaped blade spacers contact each other, and the plurality of groups of left rod pins and the plurality of groups of right rod pins correspond to each other; The positioning unit includes a ceramic sleeve covering the end of the rotor core away from the left rod pin assembly, a plurality of flat key rods respectively fixedly connected to the ends of the ceramic sleeve by bolts, a rotor spacer sleeve located between the left rod pin assembly and the right rod pin assembly, and a blade pressure cover covering the end of the right rod pin assembly away from the left rod pin assembly, the outer end cover of the blade pressure cover is provided with a plurality of pressure cover patches, and two adjacent pressure cover patches are in contact with each other. The left rod pin, the annular blade spacer sleeve, the rotor spacer sleeve, the right rod pin, and the fan-shaped blade spacer are all provided with directional holes that are completely matched with the flat key rods in the radial direction of the main shaft, and the end of the flat key rod away from the ceramic sleeve is movable through the plurality of directional holes in turn and is fixed to the blade pressure cover by bolts; Each flat key rod is provided with an internal wear monitoring unit, which includes a long monitoring hole drilled in the center of the flat key rod, a laser rangefinder and a laser receiver respectively installed at the two ends of the long monitoring hole, and a plurality of fixed-point units respectively arranged corresponding to a plurality of left rod pins and a plurality of right rod pins.

[0007] In the above-mentioned horizontal sand mill ceramic rotor, a split component assembly structure is adopted, the internal components can be made of stainless steel or aluminum alloy, and the parts in contact with the material are all made of zirconium oxide. Compared with the integrated structure in the prior art, it can avoid material contamination and can also be partially replaced after the ring is damaged, thereby reducing the cost of use.

[0008] As a further improvement of the present application, two adjacent annular blade spacers are in contact with each other, multiple right rod pins close to the left rod pin assembly are in contact with the rotor spacer, and among the multiple right rod pins farthest from the left rod pin assembly, two radially adjacent right rod pins are in contact with each other.

[0009] As a further improvement of the present application, the annular blade spacer, the left rod pin, the right rod pin, the fan-shaped blade spacer and the blade cover are all made of zirconia ceramic material, and the rotor core is made of stainless steel or aluminum alloy material.

[0010] As a further improvement of the present application, the fixed-point unit includes an external sensing unit close to the openings on both sides of the directional hole and two internal sensing units respectively connected between the two ends of the external sensing units. Two side through holes corresponding to the internal sensing units are also opened inside the flat key rod. The internal sensing unit is located in the side through holes, and the side through holes are connected to the monitoring long hole.

[0011] As a further improvement of the present application, a wire groove matching the external sensing unit is excavated at the outer end of the flat key rod. The external sensing unit includes a connecting wire located in the wire groove and a pressure-sensitive block fixedly connected to both ends of the connecting wire. The pressure-sensitive block corresponds to the two openings of the side through hole. The pressure-sensitive block includes an external push piece and an adaptive pad fixedly connected to one end of the external push piece close to the side through hole.

[0012] As a further improvement of the present application, the push-out piece is a hard structure, and the end of the push-out piece extends to the outside of the edge of the wire groove, the adaptive pad is an elastic structure, the connection point between the connecting line and the pressure-sensitive block is located on the push-out piece, and the end of the internal pressure-sensitive unit movably passes through the adaptive pad and is fixedly connected to the push-out piece.

[0013] As a further improvement of the present application, the internal pressure sensing unit includes a light-transmitting sheet located in the monitoring long hole and two follower ropes fixedly connected between the light-transmitting sheet and the two sensing blocks, respectively. The follower rope is made of non-elastic material, and when the two sensing blocks are not under pressure, the follower rope is in a straight state. At this time, the laser beam emitted by the laser rangefinder is irradiated at a position slightly below the center of the light-transmitting sheet.

[0014] As a further improvement of the present application, the inner diameter of the side through hole, the diameter of the light-transmitting sheet and the inner diameter of the monitoring long hole increase successively, and the central axis of the side through hole is higher than the center point of the monitoring long hole.

[0015] As another improvement of the present application, a dimming strip is fixedly embedded in the center of the light-transmitting sheet. The light-transmitting sheet is made of non-transparent material, and the dimming strip is made of transparent material. The transparency of the dimming strip decreases from top to bottom, and half of the width of the dimming strip is smaller than the thickness of the extrapolated sheet outside the wire groove.

[0016] In summary, a split-component assembly structure is adopted, and the internal components can be made of stainless steel or aluminum alloy, and the parts in contact with the material are all made of zirconia. Compared with the one-piece structure in the prior art, it can avoid material contamination and can also be partially replaced after the ring is damaged, thereby reducing the cost of use; in addition, under the setting of the internal wear monitoring unit, the wear of the left rod pin and the right rod pin in contact with the flat key rod can be monitored. When local wear occurs on the inner wall, the approximate wear area can be located, which is convenient for the staff to detect and replace it locally in time, thereby effectively ensuring the stability of the rotor during rotation, thereby effectively ensuring the quality of the finished material ground by this sand mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional diagram of the first embodiment of the present application; Figure 2 A cross-sectional view of a first embodiment of the present application; Figure 3A three-dimensional diagram of a rod-pin unit according to a first embodiment of the present application; Figure 4 This is a cross-sectional view of a rod-pin unit according to a first embodiment of the present application; Figure 5 This is an exploded view of the rod-pin unit of the first embodiment of the present application; Figure 6 This is a transverse cross-sectional view of a flat key rod according to a first embodiment of the present application; Figure 7 This is a side cross-sectional view of a flat key rod according to a first embodiment of the present application; Figure 8 for Figure 7 Schematic diagram of point A in FIG. Fig. 9 This is a side cross-sectional view of the flat key rod in the first embodiment of the present application when no wear occurs; Fig.10 It is a schematic cross-sectional view of the middle part of the inner pressure sensing unit when both sides of the outer pressure sensing unit are not under pressure according to the first embodiment of the present application; Fig.11 This is a cross-sectional schematic diagram of the middle part of the inner pressure sensing unit in the first embodiment of the present application when there is no wear. Fig.12 This is a front view of the light-transmitting sheet of the second embodiment of the present application. Description of the numbers in the figure: 1 spindle housing, 2 end cover, 3 spindle, 301 pulley, 41 left rod pin assembly, 411 rotor core, 412 annular blade spacer, 413 left rod pin, 42 right rod pin assembly, 421 right rod pin, 422 fan-shaped blade spacer, 5 ceramic sleeve, 52 flat key rod, 501 wire storage groove, 53 rotor spacer, 541 blade pressure cover, 542 pressure cover patch, 601 monitoring long hole, 602 side through hole, 701 laser rangefinder, 702 laser receiver, 71 connecting line, 72 sensing block, 721 extrapolation sheet, 722 adaptive pad, 73 follow-up rope, 74 light-transmitting sheet, 741 variable light strip. DETAILED DESCRIPTION

[0018] Three implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0019] The first implementation method: Figure 1-2Shown is a horizontal sand mill ceramic rotor, comprising a spindle housing 1, a spindle 3 is mounted on the middle of the spindle housing 1 through a bearing, a pulley 301 is mounted on one end of the spindle 3, a rod pin unit is mounted on the other end of the spindle 3, an end cover 2 is arranged between the spindle housing 1 and the rod pin unit, the end cover 2 is mounted on the end of the spindle housing 1, and the spindle 3 passes through the end cover 2, the rod pin unit comprises a left rod pin assembly 41 and a right rod pin assembly 42, the left rod pin assembly 41 is located on the side of the right rod pin assembly 42 close to the spindle housing 1, and positioning units are arranged at the left rod pin assembly 41 and the right rod pin assembly 42; like Figure 3-4 As shown, the left rod pin assembly 41 includes a rotor core 411 fixedly mounted on the outside of the main shaft 3, a plurality of fan-shaped blade spacers 422 sleeved on the outside of the rotor core 411, and a plurality of groups of left rod pins 413 respectively mounted between two adjacent annular blade spacers 412, each group of left rod pins 413 is provided with a plurality of wedge-shaped limiting grooves are cut on the outer end of the annular blade spacer 412, and the plurality of left rod pins 413 respectively penetrate the plurality of wedge-shaped limiting grooves and contact the surface of the rotor core 411, the right rod pin assembly 42 includes a plurality of groups of right rod pins 421 distributed in an annular array and a plurality of groups of fan-shaped blade spacers 422 distributed in an annular array, the adjacent right rod pins 421 and the fan-shaped blade spacers 422 contact each other, and the plurality of groups of left rod pins 413 and the plurality of groups of right rod pins 421 correspond to each other; like Figure 5 As shown, the positioning unit includes a ceramic sleeve 51 covered on the end of the rotor core 411 away from the left rod pin assembly 41, a plurality of flat key rods 52 respectively fixedly connected to the ends of the ceramic sleeve 51 by bolts, a rotor spacer 53 located between the left rod pin assembly 41 and the right rod pin assembly 42, and a blade pressure cover 541 covered on the end of the right rod pin assembly 42 away from the left rod pin assembly 41, the outer end cover of the blade pressure cover 541 is provided with a plurality of pressure cover patches 542, and two adjacent pressure cover patches 542 are in contact with each other, and the left rod pin 413, the annular blade spacer 412, the rotor spacer 53, the right rod pin 421, and the fan-shaped blade spacer 422 are all provided with directional holes that are completely matched with the flat key rod 52 in the radial direction of the main shaft 3, and the end of the flat key rod 52 away from the ceramic sleeve 51 is movable through the plurality of directional holes in sequence and is fixed to the blade pressure cover 541 by bolts; Two adjacent annular blade spacers 412 are in contact with each other, and the multiple right rod pins 421 close to the left rod pin assembly 41 are all in contact with the rotor spacer 53. Among the multiple right rod pins 421 farthest from the left rod pin assembly 41, two radially adjacent right rod pins 421 are in contact with each other, so that the multiple right rod pins 421 and the multiple annular blade spacers 412 are limited to each other and are in a stable state, so that the grinding quality of the material can be effectively guaranteed when the sand mill is in use.

[0020] The annular blade spacer 412, the left rod pin 413, the right rod pin 421, the fan-shaped blade spacer 422 and the blade cover 541 are all made of zirconia ceramic material, and the rotor core 411 is made of stainless steel or aluminum alloy material, that is, the internal components can be made of stainless steel or aluminum alloy, and the parts in contact with the material are all made of zirconia material. Compared with the one-piece structure in the prior art, it can avoid material contamination and can also be partially replaced after the ring is damaged, thereby reducing the cost of use.

[0021] Moreover, the whole is assembled with multiple parts. When wear occurs, the individual parts can be replaced directly without replacing the whole part, which effectively saves resources and reduces cost investment.

[0022] like Figure 6-7 In the figure, a represents the threaded hole when the end of the flat key rod 52 is connected with the bolt. Each flat key rod 52 is provided with an internal wear monitoring unit, which includes a monitoring long hole 601 drilled in the center of the flat key rod 52, a laser rangefinder 701 and a laser receiver 702 respectively installed at the two ends of the monitoring long hole 601, and a plurality of fixed-point units respectively arranged corresponding to the plurality of left rod pins 413 and the plurality of right rod pins 421. The fixed-point unit includes an external sensing unit close to the two sides of the directional hole and two internal sensing units respectively connected between the two ends of the external sensing unit. Two side through holes 602 corresponding to the internal sensing units are also drilled inside the flat key rod 52, and the internal sensing unit is located in the side through hole 602, and the side through hole 602 is communicated with the monitoring long hole 601.

[0023] like Figure 8 The outer end of the flat key rod 52 is provided with a wire groove 501 matching the external sensing unit. The external sensing unit includes a connecting line 71 located in the wire groove 501 and pressure-sensitive blocks fixedly connected to the two ends of the connecting line 71. The pressure-sensitive blocks correspond to the two mouths of the side through hole 602. The pressure-sensitive blocks include an outward push piece 721 and an adaptive pad 722 fixedly connected to one end of the outward push piece 721 close to the side through hole 602. The internal pressure-sensitive unit includes a light-transmitting sheet 74 located in the monitoring long hole 601 and two follow-up ropes 73 fixedly connected between the light-transmitting sheet 74 and the two sensing blocks 72, respectively. The follow-up rope 73 is made of non-elastic material, and when the two sensing blocks 72 are not under pressure, the follow-up rope 73 is in a straight state. At this time, the laser beam emitted by the laser rangefinder 701 irradiates the position below the center of the light-transmitting sheet 74.

[0024] The push piece 721 is a hard structure, and the end of the push piece 721 extends to the outside of the edge of the wire groove 501. The adaptive pad 722 is an elastic structure. After wear, there is a certain gap between the inner wall of the directional hole and the flat key rod 52. At this time, the adaptive pad 722 can restore the deformation, thereby driving the light-transmitting sheet 74 to undergo a certain position change. The connection point between the connecting line 71 and the pressure-sensitive block is located on the push piece 721, and the end of the internal pressure-sensitive unit movably passes through the adaptive pad 722 and is fixedly connected to the push piece 721.

[0025] The inner diameters of the side through hole 602, the light-transmitting sheet 74 and the monitoring long hole 601 increase successively, so that the light-transmitting sheet 74 can move within a certain space in the monitoring long hole 601, and the central axis of the side through hole 602 is higher than the center point of the monitoring long hole 601. The light-transmitting sheet 74 is made of transparent material, and the transparency of the light-transmitting sheet 74 decreases radially from the center to the outside, so that the laser emitted by the laser rangefinder 701 passes through the light-transmitting sheets 74 at different positions, and the light received by the laser receiver 702 is different.

[0026] Under normal circumstances, when the bit is worn, such as Fig. 9 and Fig.11 , the two ends of the external sensing unit are simultaneously compressed, causing the follower rope 73 to tilt downward, and the center point of the light-transmitting sheet 74 is downward from the central axis of the side through hole 602. At this time, the irradiation point of the light beam emitted by the laser rangefinder 701 is biased toward the middle of the light-transmitting sheet 74, such as Figure 7 , Figure 8 and Fig.10 When the left rod pin 413 and the right rod pin 421 are not assembled, the two follower ropes 73 are stretched straight. At this time, the midpoint of the light-transmitting sheet 74 is near the axis of the side through hole 602, and the laser emitted by the laser rangefinder 701 falls on the position below the midpoint of the light-transmitting sheet 74. There is an obvious position difference between the two, so there will be a position difference after wear, causing the position of the laser rangefinder 701 irradiated on the light-transmitting sheet 74 to change, and then causing the laser signal received by the laser receiver 702 to change in strength. When unilateral wear occurs, the light-transmitting sheet 74 will shift toward the worn side and shift slightly upward at the same time, causing the laser intensity received by the laser receiver 702 to decrease.

[0027] In summary, a split component assembly structure is adopted, and the internal components can be made of stainless steel or aluminum alloy, and the parts in contact with the material are all made of zirconia. Compared with the one-piece structure in the prior art, it can avoid material contamination and can also be partially replaced after the ring is damaged, thereby reducing the cost of use; in addition, under the setting of the internal wear monitoring unit, the wear of the left rod pin 413 and the right rod pin 421 in contact with the flat key rod 52 can be monitored. When local wear occurs on the inner wall, the approximate wear area can be located according to the changes in the laser on the laser rangefinder 701, which is convenient for the staff to detect and replace it in time, thereby effectively ensuring the stability of the rotor during rotation, thereby effectively ensuring the quality of the finished material ground by the sand mill.

[0028] The second implementation method: Based on the first embodiment, this embodiment adds a light-changing strip 741 and its internal structure, and the rest of the parts remain the same as the first embodiment.

[0029] Fig.12 As shown, a dimming strip 741 is fixedly embedded in the center of the light-transmitting sheet 74. The light-transmitting sheet 74 is made of non-transparent material, and the dimming strip 741 is made of transparent material. The transparency of the dimming strip 741 decreases from top to bottom. Half of the width of the dimming strip 741 is less than the thickness of the outer push sheet 721 outside the wire-hiding groove 501. When wear occurs on one side, a certain gap will be caused between the inner wall of the directional hole and the surface of the flat key rod 52. At this time, the sensing block 72 will recover its deformation to the outside of the wire-hiding groove 501, causing the follower rope 73 on this side to gradually straighten, thereby causing the light-transmitting sheet 74 to A certain position change, moving slightly upward in the longitudinal direction and moving toward the sensing block 72 in the horizontal direction, and the greater the wear, the greater the offset, causing the laser data to gradually decrease. When the sensing blocks 72 on both sides are worn too much, the sensing blocks 72 on this side will completely recover their deformation, causing the laser beam of the laser rangefinder 701 to deviate from the dimming strip 741 and fall on the light-transmitting sheet 74. At this time, the laser beam is difficult to penetrate the light-transmitting sheet 74 and is blocked, causing the laser signal on the laser receiver 702 to disappear. Based on this change, the wear monitoring effect on the inner side is better.

[0030] It is worth noting that, unlike the first embodiment, the light-transmitting sheet 74 is made of an opaque material, and in the first embodiment, there is only a change in the data on the laser receiver 702, and no data disappearance. This makes it possible for the present solution to have a greater difference in the data before and after internal wear of the laser receiver 702, making it easier to detect abnormalities in a timely manner.

[0031] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A ceramic rotor for a horizontal sand mill, characterized in that: The invention comprises a spindle housing (1), wherein a spindle (3) is mounted in the middle of the spindle housing (1) via a bearing, a pulley (301) is mounted on one end of the spindle (3), and a rod pin unit is mounted on the other end of the spindle (3), an end cover (2) is arranged between the spindle housing (1) and the rod pin unit, the end cover (2) is mounted on the end of the spindle housing (1), and the spindle (3) passes through the end cover (2), the rod pin unit comprises a left rod pin assembly (41) and a right rod pin assembly (42), the left rod pin assembly (41) is located on a side of the right rod pin assembly (42) close to the spindle housing (1), and positioning units are arranged at the left rod pin assembly (41) and the right rod pin assembly (42); The left rod pin assembly (41) comprises a rotor core (411) fixedly mounted outside the main shaft (3), a plurality of fan-shaped blade spacers (422) sleeved outside the rotor core (411), and a plurality of groups of left rod pins (413) respectively mounted between two adjacent annular blade spacers (412), each group of the left rod pins (413) being provided with a plurality of wedge-shaped limiting grooves cut at the outer ends of the annular blade spacers (412), the plurality of left rod pins (413) respectively passing through the plurality of wedge-shaped limiting grooves and contacting the surface of the rotor core (411), the right rod pin assembly (42) comprising a plurality of groups of right rod pins (421) distributed in an annular array and a plurality of groups of fan-shaped blade spacers (422) distributed in an annular array, adjacent right rod pins (421) and fan-shaped blade spacers (422) contacting each other, and the plurality of groups of left rod pins (413) and the plurality of groups of right rod pins (421) corresponding to each other; The positioning unit comprises a ceramic sleeve (51) covering an end of the rotor core (411) away from the left rod pin assembly (41), a plurality of flat key rods (52) respectively fixedly connected to the ends of the ceramic sleeve (51) by bolts, a rotor spacer (53) located between the left rod pin assembly (41) and the right rod pin assembly (42), and a blade pressure cover (541) covering an end of the right rod pin assembly (42) away from the left rod pin assembly (41), wherein the outer end cover of the blade pressure cover (541) is provided with a plurality of pressure covers. patches (542), two adjacent gland patches (542) are in contact with each other, and directional holes that completely match the flat key rod (52) are drilled on the left rod pin (413), the annular blade spacer (412), the rotor spacer (53), the right rod pin (421), and the fan-shaped blade spacer (422) in the radial direction of the main shaft (3), and one end of the flat key rod (52) away from the ceramic sleeve (51) is movable through the multiple directional holes in sequence and is fixed to the blade gland (541) by bolts; Each of the flat key rods (52) is provided with an internal wear monitoring unit, the internal wear monitoring unit comprising a monitoring long hole (601) bored in the center of the flat key rod (52), a laser rangefinder (701) and a laser receiver (702) respectively mounted at two ends of the monitoring long hole (601), and a plurality of fixed point units respectively arranged corresponding to the plurality of left rod pins (413) and the plurality of right rod pins (421).

2. The ceramic rotor of a horizontal sand mill according to claim 1, characterized in that: Two adjacent annular blade spacers (412) are in contact with each other, a plurality of right rod pins (421) close to one side of the left rod pin assembly (41) are in contact with the rotor spacer (53), and among the plurality of right rod pins (421) farthest from the left rod pin assembly (41), two radially adjacent right rod pins (421) are in contact with each other.

3. The ceramic rotor of a horizontal sand mill according to claim 1, characterized in that: The annular blade spacer (412), the left rod pin (413), the right rod pin (421), the fan-shaped blade spacer (422) and the blade gland (541) are all made of zirconia ceramic material, and the rotor core (411) is made of stainless steel or aluminum alloy material.

4. The ceramic rotor of a horizontal sand mill according to claim 1, characterized in that: The fixed-point unit comprises an external sensing unit close to the openings on both sides of the directional hole and two internal sensing units respectively connected between the two ends of the external sensing unit. The flat key rod (52) is also provided with two side through holes (602) respectively corresponding to the internal sensing units. The internal sensing unit is located in the side through holes (602), and the side through holes (602) are in communication with the monitoring long hole (601).

5. The ceramic rotor of a horizontal sand mill according to claim 4, characterized in that: The flat key rod (52) has a wire-hiding groove (501) at the outer end thereof, which matches the external sensing unit. The external sensing unit comprises a connecting wire (71) located in the wire-hiding groove (501) and a pressure-sensitive block fixedly connected to both ends of the connecting wire (71). The pressure-sensitive block corresponds to two openings of the side through hole (602). The pressure-sensitive block comprises an external push piece (721) and an adaptive pad (722) fixedly connected to one end of the external push piece (721) close to the side through hole (602).

6. The ceramic rotor of a horizontal sand mill according to claim 5, characterized in that: The outer push piece (721) is a hard structure, and the end of the outer push piece (721) extends to the outside of the edge of the wire storage groove (501), the adaptive pad (722) is an elastic structure, the connection point between the connecting line (71) and the pressure sensing block is located on the outer push piece (721), and the end of the inner pressure sensing unit movably passes through the adaptive pad (722) and is fixedly connected to the outer push piece (721).

7. The ceramic rotor of a horizontal sand mill according to claim 6, characterized in that: The internal pressure sensing unit comprises a light-transmitting sheet (74) located in the monitoring long hole (601) and two follower ropes (73) respectively fixedly connected between the light-transmitting sheet (74) and the two sensing blocks (72). The follower ropes (73) are made of a non-elastic material, and when the two sensing blocks (72) are not under pressure, the follower ropes (73) are in a straight state. At this time, the laser beam emitted by the laser rangefinder (701) irradiates a position below the center of the light-transmitting sheet (74).

8. The ceramic rotor of a horizontal sand mill according to claim 7, characterized in that: The inner diameter of the side through hole (602), the diameter of the light-transmitting sheet (74) and the inner diameter of the monitoring long hole (601) increase in sequence, and the central axis of the side through hole (602) is higher than the center point of the monitoring long hole (601).

9. The ceramic rotor of a horizontal sand mill according to claim 8, characterized in that: A light-changing strip (741) is fixedly inlaid at the center of the light-transmitting sheet (74); the light-transmitting sheet (74) is made of a non-transparent material, the light-changing strip (741) is made of a transparent material, and the transparency of the light-changing strip (741) decreases from top to bottom; half the width of the light-changing strip (741) is less than the thickness of the outer push sheet (721) located outside the wire-hiding groove (501).

Images