Non-metallic mine crusher
By setting up a bearing housing assembly in the partition chamber and an external bearing structure in the crusher, the problems of bearing lubrication and stability were solved, and the stable operation of the grinding disc and the overall stability of the equipment were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-28
- Publication Date
- 2026-03-27
AI Technical Summary
In existing pulverizers, the bearings are difficult to lubricate in the grinding chamber, the grease easily mixes with the powder, and it is difficult to find a suitable position for the added structure, which can lead to the bearings burning out and affecting the stability of the grinding disc.
The bearing housing assembly is placed inside the partition chamber, and the crushing chamber is separated by a partition plate. The bearing is externally mounted and equipped with a lower limit assembly, an upper bearing component, and a middle balancing structure. Combined with elastic connecting parts and a rotating shaft balancing structure, the stability and lubrication of the bearing are ensured.
It effectively prevents bearing seizure, ensures stable operation of the grinding disc, improves bearing lubrication, enhances overall equipment stability and sealing, and reduces the impact of vibration.
Smart Images
Figure CN121732279A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a crusher, and more particularly to a non-metallic mineral crusher. Background Technology
[0002] A pulverizer is a general term for a series of mechanical devices that crush large solid materials into powder particles of the required fineness through mechanical force. The core mechanism is to use a variety of mechanical forces, such as extrusion, impact, shearing, grinding, and splitting, or a combination thereof, to apply force to the material, causing its internal structure to break and fracture. Modern high-performance pulverizers are usually complete units that integrate a feeding system, a pulverizing host, a grading system, a collection system, a cooling / dust removal system, and a control system.
[0003] Existing mainframes all drive the grinding disc to rotate via a spindle. To ensure the rotational accuracy of the spindle, bearings are usually installed at multiple locations on the spindle to improve the stability of the grinding disc. However, after installing bearings, the bearings located in the grinding cavity are difficult to lubricate, so the grease is easily consumed after a period of use. Existing technology uses an internal lubrication structure to avoid grease consumption. However, the added grease is not only easy to mix with the powder being pulverized, but it is also difficult to find a suitable position for the added structure if it is placed inside the cavity. A custom-made housing is required to accommodate it. Furthermore, the bearings located in the grinding cavity are prone to burning out, which can easily lead to damage to the grinding disc and consequently, damage to the entire grinding disc.
[0004] Therefore, this invention aims to provide a non-metallic mineral crusher that not only allows the bearings and other rotating parts to be externally mounted, thus avoiding reduced lubrication of the bearings inside the grinding chamber and preventing the bearings from burning out, but also ensures the stability of both the upper and lower ends of the rotating shaft, and guarantees overall stability even with the lower bearing housing in place. Summary of the Invention
[0005] This invention provides a non-metallic mineral crusher that can effectively solve the above-mentioned problems.
[0006] This invention is implemented as follows: A non-metallic mineral crusher includes: a crushing main unit housing; a drive unit is disposed at the bottom inside the crushing main unit housing; the drive unit is driven by a drive component; multiple sets of grinding discs are disposed on the output shaft of the drive unit, the multiple sets of grinding discs forming a crushing chamber; a classifier with a discharge port is installed at the top of the crushing main unit housing; the powder ground by the bottom grinding discs is blown into the classifier by a high-pressure blower; and the crusher also includes: The lower limit assembly includes a partition cavity at the upper end of the drive host, and a bearing housing assembly disposed inside the partition cavity. The partition cavity is separated from the crushing cavity by a partition plate. The output shaft passes through the middle of the bearing housing assembly. When the output shaft drives the grinding disc to rotate, the bearing housing assembly provides rotational accuracy for the output shaft. A mid-end balancing structure is disposed on the outer side of the bearing housing assembly. The mid-end balancing structure extends and is fixed to the outer side of the high-pressure blower. When the output shaft rotates, the mid-end balancing structure guides and limits the output shaft. The rotating shaft balancing structure includes a mounting head connected to the top of the output shaft. The rotating shaft balancing structure includes a gyratory stabilizer mounted on the top of the mounting head. The top of the gyratory stabilizer is rotatably mounted on the bottom of the classifier. A powder guide frame is mounted on the gyratory stabilizer.
[0007] As a further improvement, the bearing housing assembly includes a lower bearing component disposed at the bottom of the partition cavity, an upper bearing component disposed at the top of the partition cavity, and an embedded closure component disposed at the top of the upper bearing component, the top surface of the embedded closure component being in close contact with the bottom surface of the bottommost grinding disc.
[0008] As a further improvement, the lower bearing component includes a bottom mounting base disposed at the bottom of the partition cavity, a lower bearing is mounted on the upper end of the bottom mounting base, and a plurality of detection elements fixed on the bottom mounting base are disposed on the outer side of the lower bearing.
[0009] As a further improvement, the upper bearing component includes a top mounting seat disposed at the top of the partition cavity, and two sets of upper bearings are disposed below the top mounting seat, with a reverse fastener connected to the bottom upper bearing.
[0010] As a further improvement, the top mounting base includes an outer nested base, and a folded sleeve is provided on the inner side of the outer nested base, the folded sleeve surrounding the outer peripheral surface of the output shaft.
[0011] As a further improvement, the mid-end balancing structure includes an elastic connector disposed between the lower bearing component and the upper bearing component, and a plurality of elastic buffers are disposed on the outer side of the elastic connector, the ends of which are connected to the outer side of the high-pressure blower.
[0012] As a further improvement, the elastic connector includes a first connecting ring and a second connecting ring respectively disposed on the lower bearing member and the upper bearing member. The inner sides of the first connecting ring and the second connecting ring each have several sets of embedded slots, and an elastic sheet is connected between the embedded slots at the upper and lower ends.
[0013] As a further improvement, the outer side of the high-pressure blower is locked with an inner mounting ring, the elastic buffer includes a buffer spring disposed on the outer side of the elastic sheet, the rear half of the buffer spring is disposed inside the sleeve, and the end of the sleeve is fixed to the inner mounting ring.
[0014] As a further improvement, the gyroscopic stabilizer includes an extension rod fixed to the mounting head, the top of which is connected to an outer winding disc higher than the feed inlet of the crusher housing, the outer edge of which is connected to a guide groove on the inner wall of the crusher housing.
[0015] As a further improvement, the powder guide frame is disposed inside the outer winding disc, and the interior of the powder guide frame contains a plurality of guide plates, which are connected to a central base. Each guide plate includes a guide piece with holes, and a plurality of guide slant pieces are connected to the side of the guide piece near the central base.
[0016] The beneficial effects of this invention are: In existing technologies, bearings located in the grinding chamber are difficult to lubricate. The added grease is not only prone to mixing with the powder being pulverized, but also difficult to find a suitable position for the added structure if it is placed inside the chamber, requiring a custom-made housing to accommodate it. Therefore, this invention uses a lower limit assembly to place the bearing housing assembly inside the partition chamber and separates the partition chamber from the grinding chamber by a partition plate. This ensures that the powder being pulverized will not affect the normal operation of the bearing housing assembly. Furthermore, since the heavier bearing housing assembly guides the entire output shaft, it can ensure the stable operation of the grinding disc at the upper end of the output shaft. This not only ensures the stable operation of the grinding disc but also overcomes the problems of difficult bearing lubrication and easy burn-out.
[0017] The bearing housing assembly is not a single bearing configuration; it needs to ensure the turnover of the top and bottom ends. Therefore, the bearing housing assembly of the present invention not only has a lower bearing component but also an upper bearing component. By configuring the two bearing components, the power transmission can be smoother, and both the near and far ends of the drive host can be supported and limited.
[0018] When the lower bearing is used for support, it mainly limits the rotation of the near end of the drive unit. Therefore, the accuracy of the limit needs to be considered. This invention sets a detection element at the position of the lower bearing to detect the force on the lower bearing and thus monitor whether the output shaft is rotating normally. This allows for timely feedback in case of vibration during rotation.
[0019] Since the upper bearing is located at the far end of the drive unit, it requires a stronger rotational limiting effect. Therefore, the present invention sets two sets of upper bearings at the top of the partition cavity, and limits the movement of the output shaft at the far end by using the two sets of upper bearings.
[0020] Since the upper bearing component is located very close to the crushing chamber, the sealing performance at this location needs to be relatively stable. Therefore, the top mounting base of this invention is nested on the outer circumferential surface of the output shaft by a folded sleeve, and then cooperates with the sealing surface of the embedded sealing component to prevent powder from the crushing chamber from entering the partition chamber and improve the sealing effect of the assembly area.
[0021] There is a certain gap between the lower bearing component and the upper bearing component. If a large number of bearings are directly installed in this area, it will not only fail to meet the requirements of heat dissipation, but also fall into the category of overcorrection. Therefore, the present invention provides an elastic connector between the lower bearing component and the upper bearing component, which not only improves the stability between the two sections of the structure, but also buffers the vibration when the output shaft rotates at high speed. Furthermore, the elastic connector is also connected to the outside of the high-pressure blower through an elastic buffer, thereby transmitting the vibration received to the entire casing, further ensuring the overall stability.
[0022] When the elastic connector is used for buffering, it is first installed on the lower bearing component and the upper bearing component through the first connecting ring and the second connecting ring. Then, the elastic sheet is connected to the first connecting ring and the second connecting ring through the embedded slot, so that the elastic sheet can undergo a certain deformation, thereby connecting and buffering the bearings at the upper and lower ends.
[0023] If the elastic sheet is not properly connected and supported during its expansion or contraction, it is prone to deformation and collapse due to its long length. Therefore, the elastic sheet of this invention is provided with an elastic buffer in the middle of its outer side. The elastic buffer pulls the elastic sheet tight, which not only has a fixing effect, but also has a repositioning effect when the elastic sheet expands or contracts.
[0024] Although the bearing housing assembly is located at the bottom through the lower limit assembly, which alleviates the problem of bearing burnout, it also leaves the top of the output shaft extending into the grinding disc unsupported, making it prone to top-heavy imbalance. Therefore, this invention incorporates a shaft balancing structure on the basis of the lower limit assembly. The gyratory stabilizer of the shaft balancing structure extends to the inner wall of the crushing host housing, thereby driving the shaft balancing structure to rotate when the output shaft rotates. This increases the weight at the end of the output shaft, thus creating counterweight with the lower limit assembly and preventing top deformation and torsion.
[0025] The gyro stabilizer needs to extend the length of the output shaft and distribute the torsional force at the end of the output shaft evenly onto the crusher housing. However, if it is only set at the upper end of the output shaft, it will affect the feeding. Therefore, the extension rod of the gyro stabilizer of the present invention is first connected to the mounting head and extends to a height higher than the feed inlet of the crusher housing to avoid affecting the feeding. Then, an outer winding disc is installed on the extension rod. The centrifugal force generated during rotation is evenly distributed onto the inner wall of the crusher housing through the outer winding disc, thereby forming support at the far end. Attached Figure Description
[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0027] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0028] Figure 2 This is a schematic diagram of the internal structure of the present invention.
[0029] Figure 3 This is a schematic diagram of the lower limit assembly and the rotating shaft balance structure of the present invention.
[0030] Figure 4 This is a schematic diagram of the shaft balancing structure of the present invention.
[0031] Figure 5 This is a schematic diagram of the mid-end balancing structure of the present invention.
[0032] Figure 6 This is the present invention. Figure 2 A magnified view of region A in the middle.
[0033] Figure 7 This is the present invention. Figure 2 A magnified view of region B in the middle.
[0034] In the picture: Crusher housing 10, guide groove 101, drive unit 20, output shaft 21, grinding disc 22, mounting head 211, classifier 40, high-pressure blower 50, inner mounting ring 51, lower limit assembly 60, bearing housing assembly 61, lower bearing component 611, bottom mounting seat 6111, lower bearing 6112, detection component 6113, upper bearing component 612, top mounting seat 6121, outer nesting seat 61211, folding sleeve 61212, upper bearing 6122, reverse buckle 6123, embedded seal Closing element 613, partition plate 62, middle end balancing structure 63, elastic connector 631, first connecting ring 6311, second connecting ring 6312, embedded seam 6313, elastic sheet 6314, elastic buffer 632, buffer spring 6321, sleeve 6322, rotating shaft balancing structure 70, gyratory stabilizer 71, extension rod 711, outer winding disc 712, powder guide frame 72, guide plate 721, guide piece 7211, guide inclined piece 7212, central seat 722, inner embedded top 73. Detailed Implementation
[0035] All embodiments of the present invention are intended to fall within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0036] In the description of this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating that the purpose, technical solution, and advantages of the method are clearer. The technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without inventive effort indicate or imply the relative importance of the indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0037] Reference Figures 1 to 7 As shown, a non-metallic mineral crusher includes: a crushing main unit housing 10, a drive unit 20 disposed at the bottom inside the crushing main unit housing 10, the drive unit 20 being driven by a drive component 30, multiple sets of grinding discs 22 disposed on the output shaft 21 of the drive unit 20, the multiple sets of grinding discs 22 forming a crushing chamber, a classifier 40 with a discharge port installed at the top of the crushing main unit housing 10, the powder ground by the bottom grinding discs 22 being blown into the classifier 40 by a high-pressure blower 50, and further includes: a lower limit assembly 60, a partition cavity disposed at the upper end of the drive unit 20, the lower limit assembly 60 including a bearing seat assembly 61 disposed inside the partition cavity, the partition cavity being separated from the crushing chamber by a partition plate 62, and so on. The output shaft 21 passes through the middle of the bearing housing assembly 61. When the output shaft 21 drives the grinding disc 22 to rotate, the bearing housing assembly 61 provides rotational accuracy for the output shaft 21. A mid-end balancing structure 63 is provided on the outer side of the bearing housing assembly 61. The mid-end balancing structure 63 extends and is fixed to the outer side of the high-pressure blower 50. When the output shaft 21 rotates, the mid-end balancing structure 63 guides and limits the output shaft 21. A rotating shaft balancing structure 70 is provided. The top of the output shaft 21 is connected to a mounting head 211. The rotating shaft balancing structure 70 includes a gyratory stabilizer 71 provided on the top of the mounting head 211. The top of the gyratory stabilizer 71 is rotatably mounted on the bottom of the classifier 40. A powder guide frame 72 is provided on the gyratory stabilizer 71.
[0038] The drive host 20 and drive components in this embodiment include a speed reducer, a transmission belt and a lower drive roller. These are all existing technologies for crushers and will not be described in detail here.
[0039] In the prior art, the bearings located in the grinding chamber are difficult to lubricate. The added grease is not only easy to mix with the powder being crushed, but also difficult to find a suitable position for the added structure if it is placed in the chamber, requiring a custom-made housing to accommodate it. Therefore, the present invention sets a lower limit assembly 60, which places the bearing housing assembly 61 inside the partition chamber, and separates the partition chamber from the crushing chamber by a partition plate 62. This ensures that the powder being crushed will not affect the normal operation of the bearing housing assembly 61. Furthermore, since the heavier bearing housing assembly 61 guides the entire output shaft 21, it can ensure the stable operation of the grinding disc 22 at the upper end of the output shaft 21. This not only ensures the stable operation of the grinding disc 22, but also overcomes the problems of difficult bearing lubrication and easy burning.
[0040] The bearing housing assembly 61 is not a single bearing configuration; it needs to ensure the turnover of both the top and bottom ends. Therefore, in this embodiment, the bearing housing assembly 61 includes a lower bearing component 611 disposed at the bottom of the partition cavity, an upper bearing component 612 disposed at the top of the partition cavity, and an embedded sealing component 613 disposed at the top of the upper bearing component 612. The top surface of the embedded sealing component 613 is in close contact with the bottom surface of the bottommost grinding disc 22. The bearing housing assembly 61 not only has a lower bearing component 611 but also an upper bearing component 612. Through the arrangement of the two bearing components, the power transmission can be smoother, and both the near and far ends of the drive host 20 can be supported and limited. Furthermore, the embedded sealing component 613 is a sealing gasket embedded in the lower end of the entire partition plate 62, thereby forming a multi-layer sealing effect.
[0041] When the lower bearing component 611 provides support, its main function is to limit the rotation of the near end of the drive host 20. Therefore, the accuracy of the limit needs to be considered. In this embodiment, the lower bearing component 611 includes a bottom mounting base 6111 located at the bottom of the partition cavity. A lower bearing 6112 is mounted on the upper end of the bottom mounting base 6111. Several detection elements 6113 fixed on the bottom mounting base 6111 are arranged on the outer side of the lower bearing 6112. By setting the detection elements 6113 at the position of the lower bearing 6112, the force on the lower bearing 6112 is detected by the detection elements 6113, thereby monitoring whether the output shaft 21 rotates normally. In this way, timely feedback can be provided when there is a jump in the rotation. The detection element 6113 is a force sensor, which can detect the force on the lower bearing 6112 and thus determine whether the rotation limit is normal.
[0042] Since the upper bearing component 612 is located at the far end of the drive host 20, it requires a stronger rotational limiting effect. Therefore, the upper bearing component 612 in this embodiment includes a top mounting seat 6121 disposed at the top of the partition cavity. Two sets of upper bearings 6122 are disposed below the top mounting seat 6121. A reverse mounting buckle 6123 is connected to the bottom upper bearing 6122. By disposing of two sets of upper bearings 6122 at the top of the partition cavity, the far end of the output shaft 21 can be more stable.
[0043] Since the upper bearing component 612 is located very close to the crushing chamber, the sealing performance at this location needs to be relatively stable. Therefore, the top mounting base 6121 in this embodiment includes an outer nesting base 61211. A folded sleeve 61212 is provided on the inner side of the outer nesting base 61211. The folded sleeve 61212 surrounds the outer peripheral surface of the output shaft 21. The top mounting base 6121 is nested on the outer peripheral surface of the output shaft 21 through the folded sleeve 61212. Combined with the sealing surface of the embedded sealing component 613, the powder in the crushing chamber is prevented from entering the partition chamber, thereby improving the sealing effect of the assembly area.
[0044] There is a certain gap between the lower bearing component 611 and the upper bearing component 612. If a large number of bearings are directly installed in this area, it will not only fail to meet the requirements of heat dissipation, but also fall into the category of overcorrection. Therefore, the mid-end balancing structure 63 of this embodiment includes an elastic connector 631 disposed between the lower bearing component 611 and the upper bearing component 612. Several elastic buffers 632 are disposed on the outer side of the elastic connector 631. The ends of the elastic buffers 632 are connected to the outer side of the high-pressure blower 50. The placement of the elastic connector 631 between the lower bearing component 611 and the upper bearing component 612 not only improves the stability between the two sections of the structure, but also buffers the vibration when the output shaft 21 rotates at high speed. Furthermore, the elastic connector 631 is also connected to the outer side of the high-pressure blower 50 through the elastic buffers 632, thereby transmitting the received vibration to the entire casing and further ensuring the overall stability.
[0045] When the elastic connector 631 performs buffering, specifically, the elastic connector 631 includes a first connecting ring 6311 and a second connecting ring 6312 respectively disposed on the lower bearing component 611 and the upper bearing component 612. The inner sides of the first connecting ring 6311 and the second connecting ring 6312 each have several sets of embedding slots 6313. An elastic piece 6314 is connected between the embedding slots 6313 at the upper and lower ends. The elastic piece 6314 is first installed on the lower bearing component 611 and the upper bearing component 612 through the first connecting ring 6311 and the second connecting ring 6312, and then connected to the first connecting ring 6311 and the second connecting ring 6312 through the embedding slots 6313, so that the elastic piece 6314 can undergo a certain deformation, thereby connecting and buffering the bearings at the upper and lower ends.
[0046] If the elastic sheet 6314 is not properly connected and supported during its expansion or contraction, it is prone to deformation and collapse due to its long length and lack of support over a long period of time. Therefore, in this embodiment, an inner mounting ring 51 is locked on the outer side of the high-pressure blower 50. The elastic buffer 632 includes a buffer spring 6321 disposed on the outer side of the elastic sheet 6314. The rear half of the buffer spring 6321 is disposed inside the sleeve 6322. The end of the sleeve 6322 is fixed to the inner mounting ring 51. An elastic buffer 632 is also disposed in the middle of the outer side of the elastic sheet 6314. The elastic buffer 632 pulls the elastic sheet 6314 tight, which not only has a fixing effect, but also has a pulling and resetting effect when the elastic sheet 6314 expands or contracts.
[0047] Although the bearing housing assembly 61 is located at the bottom through the lower limit assembly 60, which alleviates the problem of bearing seizure, it also leaves the top of the output shaft 21 extending into the grinding disc 22 without support, which can easily lead to a top-heavy phenomenon. Therefore, in this embodiment, a rotating shaft balancing structure 70 is provided on the basis of the lower limit assembly 60. The gyratory stabilizer 71 of the rotating shaft balancing structure 70 extends to the inner wall of the crushing host housing 10, so that when the output shaft 21 rotates, it can drive the rotating shaft balancing structure 70 to rotate, thereby increasing the weight at the end of the output shaft 21 and forming a counterweight with the lower limit assembly 60, thus avoiding the phenomenon of top deformation and torsion.
[0048] The gyroscopic stabilizer 71 needs to extend the length of the output shaft 21 and distribute the torsional force at the end of the output shaft 21 evenly onto the crusher housing 10. However, if it is only set at the upper end of the output shaft 21, it will affect the feeding. Therefore, the gyroscopic stabilizer 71 in this embodiment includes an extension rod 711 fixed to the mounting head 211. The top of the extension rod 711 is connected to an outer winding disc 712 that is higher than the feed inlet of the crusher housing 10. The outer edge of the outer winding disc 712 is connected to the guide groove 101 on the inner wall of the crusher housing 10. The extension rod 711 of the gyroscopic stabilizer 71 is first connected to the mounting head 211 and extends to a height higher than the feed inlet of the crusher housing 10 to avoid affecting the feeding. Then, the outer winding disc 712 is installed on the extension rod 711. The centrifugal force generated during rotation is evenly distributed onto the inner wall of the crusher housing 10 through the outer winding disc 712, thereby forming support at the far end.
[0049] To ensure the stability of the outer winding disc 712, an inner embedded top 73 is provided on the top of the outer winding disc 712. The inner embedded top 73 is embedded in the groove below the classifier 40, thereby forming a continuous rotation path and allowing the top to rotate stably as well.
[0050] Since the outer winding disc 712 is located at the lower end of the classifier 40, it may interfere with the falling of unqualified powder. Therefore, in this embodiment, the powder guide frame 72 is located inside the outer winding disc 712. The powder guide frame 72 contains several guide plates 721. The several guide plates 721 are connected to a central seat 722. Each guide plate 721 contains a guide piece 7211 with holes. Several guide oblique pieces 7212 are connected to the side of the guide piece 7211 near the central seat 722, so that the particles that do not meet the standards after classification can be evenly dispersed onto the grinding disc 22.
[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the invention by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the invention should be included within the scope of protection of the invention.
Claims
1. A non-metallic mineral crusher, characterized in that, include: The main crushing machine housing (10) has a drive unit (20) installed at the bottom inside the main crushing machine housing (10). The drive unit (20) is driven by a drive component (30). Multiple sets of grinding discs (22) are installed on the output shaft (21) of the drive unit (20). The multiple sets of grinding discs (22) form a crushing chamber. A classifier (40) with a discharge port is installed on the top of the main crushing machine housing (10). The powder ground by the bottom grinding disc (22) is blown into the classifier (40) by a high-pressure blower (50). The main crushing machine housing (10) also includes: The lower limit assembly (60) has a partition cavity at the upper end of the drive host (20). The lower limit assembly (60) includes a bearing housing assembly (61) disposed inside the partition cavity. The partition cavity is separated from the crushing cavity by a partition plate (62). The output shaft (21) passes through the middle of the bearing housing assembly (61). When the output shaft (21) drives the grinding disc (22) to rotate, the bearing housing assembly (61) provides rotational accuracy for the output shaft (21). A middle-end balancing structure (63) is disposed on the outside of the bearing housing assembly (61). The middle-end balancing structure (63) extends and is fixed to the outside of the high-pressure blower (50). When the output shaft (21) rotates, the middle-end balancing structure (63) guides and limits the output shaft (21). A rotating shaft balancing structure (70) is provided, wherein a mounting head (211) is connected to the top of the output shaft (21), the rotating shaft balancing structure (70) includes a gyratory stabilizer (71) disposed on the top of the mounting head (211), the top of the gyratory stabilizer (71) is rotatably mounted on the bottom of the classifier (40), and a powder guide frame (72) is disposed on the gyratory stabilizer (71).
2. The non-metallic mineral crusher according to claim 1, characterized in that, The bearing housing assembly (61) includes a lower bearing component (611) disposed at the bottom of the partition cavity, an upper bearing component (612) disposed at the top of the partition cavity, an embedded closure component (613) disposed at the top of the upper bearing component (612), and the top surface of the embedded closure component (613) is in close contact with the bottom surface of the bottommost grinding disc (22).
3. A non-metallic mineral crusher according to claim 2, characterized in that, The lower bearing component (611) includes a bottom mounting base (6111) disposed at the bottom of the partition cavity. A lower bearing (6112) is mounted on the upper end of the bottom mounting base (6111). A plurality of detection components (6113) fixed on the bottom mounting base (6111) are disposed on the outer side of the lower bearing (6112).
4. A non-metallic mineral crusher according to claim 2, characterized in that, The upper bearing component (612) includes a top mounting seat (6121) disposed at the top of the partition cavity, and two sets of upper bearings (6122) are disposed below the top mounting seat (6121), with a reverse fastener (6123) connected to the bottom upper bearing (6122).
5. A non-metallic mineral crusher according to claim 4, characterized in that, The top mounting base (6121) includes an outer nesting base (61211), and a folded sleeve (61212) is provided on the inner side of the outer nesting base (61211). The folded sleeve (61212) surrounds the outer peripheral surface of the output shaft (21).
6. A non-metallic mineral crusher according to claim 1, characterized in that, The mid-end balancing structure (63) includes an elastic connector (631) disposed between the lower bearing component (611) and the upper bearing component (612). A plurality of elastic buffers (632) are disposed on the outer side of the elastic connector (631), and the ends of the elastic buffers (632) are connected to the outer side of the high-pressure blower (50).
7. A non-metallic mineral crusher according to claim 1, characterized in that, The elastic connector (631) includes a first connecting ring (6311) and a second connecting ring (6312) respectively disposed on the lower bearing (611) and the upper bearing (612). The inner sides of the first connecting ring (6311) and the second connecting ring (6312) each have a number of sets of embedded slots (6313), and an elastic sheet (6314) is connected between the embedded slots (6313) at the upper and lower ends.
8. A non-metallic mineral crusher according to claim 7, characterized in that, An inner mounting ring (51) is locked to the outside of the high-pressure blower (50). The elastic buffer (632) includes a buffer spring (6321) disposed outside the elastic sheet (6314). The rear half of the buffer spring (6321) is disposed inside the sleeve (6322), and the end of the sleeve (6322) is fixed to the inner mounting ring (51).
9. A non-metallic mineral crusher according to claim 1, characterized in that, The gyroscopic stabilizer (71) includes an extension rod (711) fixed to the mounting head (211). The top of the extension rod (711) is connected to an outer winding disc (712) higher than the feed inlet of the crushing host housing (10). The outer edge of the outer winding disc (712) is connected to the guide groove (101) on the inner wall of the crushing host housing (10).
10. A non-metallic mineral crusher according to claim 9, characterized in that, The powder guide frame (72) is located inside the outer winding disc (712). The powder guide frame (72) contains a plurality of guide plates (721). The plurality of guide plates (721) are connected to a central seat (722). The guide plate (721) contains a guide piece (7211) with holes. The guide piece (7211) is connected to a plurality of guide slant pieces (7212) on the side of the guide piece (7211) near the central seat (722).