A mill bearing and its production equipment

Abstract

This invention belongs to the field of bearing manufacturing technology and discloses a mill bearing and its production equipment, including a lifting mechanism. The lifting mechanism includes two first hydraulic rods, with a lifting plate slidably connected to the top of each first hydraulic rod. A bidirectional rack is fixedly connected to the bottom of the lifting plate, and first gears mesh on both sides of the bidirectional rack. A transmission gear meshes on the side of each of the two first gears away from the bidirectional rack. This invention, through the cooperation of structures such as the bidirectional rack and the driven rack, facilitates the removal of the bearing body from the mold by the operator. The upper mold base is raised by the second hydraulic rod, separating the bottom of the upper mold base from the bearing body and disengaging the first protrusion from the first groove. Subsequently, the lifting plate is raised by the first hydraulic rod, which drives the bidirectional rack to rise, causing the two first gears meshing with it to rotate.

Description

Technical Field

[0001] This invention belongs to the field of bearing manufacturing technology, specifically a mill bearing and its manufacturing equipment. Background Technology

[0002] Deeply rooted in the continuous pursuit of material grinding and processing technology in heavy industries such as mining, chemical, and building materials, mills, as key equipment for crushing and grinding materials since the industrial era, have directly affected the quality and production costs of downstream products. Among them, bearings, as the core components for mill support and friction reduction, are inseparable from the progress of mill technology, breakthroughs in materials science, and innovations in processing technology. Bearings are mainly used in the bearing parts of various rotating machinery, such as engines, compressors, mills, pumps, and fans, playing a role in supporting the shaft system, reducing friction, distributing loads, and providing lubrication. They are an important component in ensuring the stable operation of mechanical equipment and extending its service life. In recent years, with the rapid development of materials science, precision machining, automation control, and intelligent technology, bearing production equipment has ushered in a transformation from mechanization to automation and from low efficiency to high efficiency. The introduction of CNC machine tools, precision casting equipment, and automated assembly lines has greatly improved the production efficiency and quality of bearings. In particular, after breakthroughs in materials science, the application of new alloys and composite materials has placed higher demands on the precision, flexibility, and intelligence of production equipment.

[0003] Most existing mill bearing production equipment requires manual removal of the bearings from the mold after casting, which is not only inconvenient to operate but also prone to safety issues. In addition, most molds have a single-channel cooling structure, which results in uneven cooling of the bearings and can easily lead to cracks and segregation. Therefore, a mill bearing production equipment is proposed that facilitates the feeding of bearings and optimizes the cooling structure. Summary of the Invention

[0004] To address the problems in the aforementioned technologies where, after casting, the bearing bushes often require manual removal from the mold, which is inconvenient and poses safety risks, and where the cooling structure of most molds is single-channel cooling, resulting in uneven cooling of the bearing bushes and potential cracking and segregation, this invention provides a bearing bush for mills and related production equipment.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a production equipment for mill bearing bushes, comprising a lifting mechanism, a mold mechanism disposed on the lifting mechanism, a cooling mechanism disposed on the mold mechanism, an injection molding mechanism disposed above the mold mechanism, and a bearing bush mechanism disposed inside the mold mechanism;

[0006] The lifting mechanism includes two first hydraulic rods, with a lifting plate slidably connected to the top of each first hydraulic rod. A bidirectional rack is fixedly connected to the bottom of the lifting plate. First gears mesh on both sides of the bidirectional rack. A transmission gear meshes on the side of each of the two first gears away from the bidirectional rack. Second gears mesh on the top of each of the two transmission gears. A driven rack meshes on the top of each of the two second gears. A lower mold base is provided on the top of the lifting plate, and three sliders are fixedly connected to both sides of the lower mold base.

[0007] Preferably, the three sliders are evenly distributed on the side of the lower mold base, the bidirectional rack is located between the two first hydraulic rods, the size of the second gear is larger than the size of the first gear, and the size of the first gear is adapted to the size of the transmission gear.

[0008] Preferably, the mold mechanism includes a main base, a sliding groove is provided on the top of the main base, two limiting grooves are provided on the top of the main base, a first side mold and a second side mold are slidably connected to the top of the main base respectively, two limiting blocks are fixedly connected to the bottom of the first side mold and the second side mold, a first groove is provided on the top of the first side mold and the second side mold, an injection groove is provided between the first side mold and the second side mold, and an inclined block is fixedly connected to the second side mold.

[0009] Preferably, the driven rack is slidably connected to the slide groove, the limiting block is slidably connected to the limiting groove, the inclined block is located inside the injection molding groove, and the first hydraulic rod is slidably connected to the main body base.

[0010] Preferably, the driven rack is slidably connected to the slide groove, and the tops of the two driven racks are respectively fixedly connected to the first side mold and the second side mold. The lower mold base is located between the first side mold and the second side mold, and the lower mold base is slidably connected to the first side mold and the second side mold respectively through a slider.

[0011] Preferably, the cooling mechanism includes two circulating water pumps, and four cooling pipes are fixedly connected to the side of each of the two circulating water pumps that are close to each other.

[0012] Preferably, the first side mold and the second side mold are located between two circulating water pumps, and the cooling pipes extend through the surfaces of the first side mold and the second side mold respectively into the interior of the first side mold and the second side mold.

[0013] Preferably, the injection molding mechanism includes a hydraulic base, a second hydraulic rod slidably connected to the bottom of the hydraulic base, an upper mold base fixedly connected to the bottom of the second hydraulic rod, a first protrusion provided at the bottom of the upper mold base, an injection hole provided on the upper mold base, a plurality of second protrusions fixedly connected to the bottom of the upper mold base, and two protruding rods fixedly connected to the bottom of the upper mold base.

[0014] Preferably, the size of the first protrusion is adapted to the size of the first groove, the first protrusion and the first groove are engaged, and the upper mold base is located above the first side mold and the second side mold.

[0015] A mill bearing includes a bearing mechanism, the bearing mechanism including a bearing body, a plurality of second grooves evenly provided on the top of the bearing body, two small holes provided on the top of the bearing body, and two inclined grooves provided on both sides of the bearing body, the size of the second groove is adapted to the size of the second protrusion, the size of the small hole is adapted to the size of the protrusion, and the size of the inclined groove is adapted to the size of the inclined block.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention, through the combination of a bidirectional rack and a driven rack, facilitates the removal of the bearing body from the mold by the operator. The upper mold base is raised via a second hydraulic rod, separating its bottom from the bearing body and disengaging the first protrusion from the first groove. The lifting plate is then raised via the first hydraulic rod, causing the bidirectional rack to move upwards. This upward movement of the rack rotates the two meshing first gears, which in turn rotate the meshing transmission gears in the opposite direction. The rotation of the transmission gears then rotates the meshing second gears in the same direction. The rotation of the second gears causes the two meshing driven racks to move upwards on the lifting plate in a direction away from each other. This, in turn, moves the first and second side molds away from the bearing body. When the top of the lifting plate abuts against the bottom of the lower mold base, the sliding connection between the first and second side molds and the slider is released, separating them from the bearing body. At this point, the lifting plate continues to rise, lifting the bearing body through the lower mold base, thus avoiding the safety issues associated with manual operation.

[0018] This invention improves the cooling effect of the device by combining a circulating water pump and four cooling pipes. The circulating water pump injects coolant into the interior of the four cooling pipes, which then flow from the center to the opposite sides. Inside the first and second side molds, heat is carried away from the center to the edges, allowing the cooling rate of the most difficult-to-cool center to reach a slow cooling balance with that of the edges. This avoids excessive cooling that could cause segregation on the bearing body. At the same time, the four cooling pipes inside the first and second side molds provide uniform cooling of the device, preventing uneven cooling that could cause cracks on the surface of the bearing body. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a top view of the mold mechanism of the present invention;

[0021] Figure 3 This is a schematic cross-sectional view of the mold mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram showing the structural relationship between the bearing body and the first side mold of the present invention;

[0023] Figure 5 This is a schematic diagram showing the structural relationship and fit between the driven rack and the second gear of the present invention;

[0024] Figure 6 This is a three-dimensional structural diagram of the cooling mechanism of the present invention;

[0025] Figure 7 This is a three-dimensional structural diagram of the bearing mechanism of the present invention.

[0026] In the diagram: 1. Lifting mechanism; 101. First hydraulic rod; 102. Lifting plate; 103. Double-sided rack; 104. First gear; 105. Transmission gear; 106. Second gear; 107. Driven rack; 108. Lower mold base; 109. Slider; 2. Mold mechanism; 201. Main body base; 202. Slide groove; 203. Limiting groove; 204. Limiting block; 205. First side mold; 206. Second side mold; 207. 1. First groove; 208. Injection groove; 209. Inclined block; 3. Cooling mechanism; 301. Circulating water pump; 302. Cooling pipe; 4. Injection mechanism; 401. Hydraulic seat; 402. Second hydraulic rod; 403. Upper mold base; 404. First protrusion; 405. Injection hole; 406. Second protrusion; 407. Protruding rod; 5. Bearing mechanism; 501. Bearing body; 502. Second groove; 503. Small hole; 504. Inclined groove. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1 to 6 As shown, the present invention provides a production equipment for mill bearing bushes, including a lifting mechanism 1, a mold mechanism 2 disposed on the lifting mechanism 1, a cooling mechanism 3 disposed on the mold mechanism 2, an injection molding mechanism 4 disposed above the mold mechanism 2, and a bearing bush mechanism 5 disposed inside the mold mechanism 2;

[0029] The lifting mechanism 1 includes two first hydraulic rods 101. A lifting plate 102 is slidably connected to the top of the first hydraulic rods 101. A bidirectional rack 103 is fixedly connected to the bottom of the lifting plate 102. First gears 104 are meshed on both sides of the bidirectional rack 103. A transmission gear 105 is meshed on the side of the two first gears 104 away from the bidirectional rack 103. Second gears 106 are meshed on the top of the two transmission gears 105. A driven rack 107 is meshed on the top of the two second gears 106. A lower mold base 108 is provided on the top of the lifting plate 102. Three sliders 109 are fixedly connected to both sides of the lower mold base 108.

[0030] Three sliders 109 are evenly distributed on the side of the lower mold base 108. The bidirectional rack 103 is located between the two first hydraulic rods 101. The size of the second gear 106 is larger than that of the first gear 104. The size of the first gear 104 is matched with that of the transmission gear 105.

[0031] The above solution, through the coordination of structures such as the bidirectional rack 103 and the driven rack 107, facilitates the removal of the bearing body 501 from the mold by the operator. The upper mold base 403 is raised via the second hydraulic rod 402, separating its bottom from the bearing body 501 and disengaging the first protrusion 404 from the first groove 207. Subsequently, the lifting plate 102 is raised via the first hydraulic rod 101. This upward movement of the lifting plate 102 drives the bidirectional rack 103 upward, causing the two meshed first gears 104 to rotate. The rotation of the first gears 104 drives the meshed transmission gear 105 to rotate in the opposite direction. The movement will cause the second gear 106 meshing with it to rotate and move in the same direction as the second gear 106. The rotation of the second gear 106 will cause the two driven racks 107 meshing with it to move upward on the lifting plate 102 in a direction away from each other, thereby causing the first side mold 205 and the second side mold 206 to move in the opposite direction away from the bearing body 501. When the top of the lifting plate 102 abuts against the bottom of the lower mold base 108, the sliding connection between the first side mold 205 and the second side mold 206 and the slider 109 is released, and they are separated from the bearing body 501. At this time, the lifting plate 102 continues to move upward and will lift the bearing body 501 through the lower mold base 108, avoiding the safety problems that may occur with manual operation.

[0032] like Figures 2 to 6 As shown, the mold mechanism 2 includes a main base 201. A sliding groove 202 is provided on the top of the main base 201. Two limiting grooves 203 are provided on the top of the main base 201. A first side mold 205 and a second side mold 206 are slidably connected to the top of the main base 201. Two limiting blocks 204 are fixedly connected to the bottom of the first side mold 205 and the second side mold 206. A first groove 207 is provided on the top of the first side mold 205 and the second side mold 206. An injection groove 208 is provided between the first side mold 205 and the second side mold 206. An inclined block 209 is fixedly connected to the second side mold 206.

[0033] The driven rack 107 is slidably connected to the slide groove 202, the limiting block 204 is slidably connected to the limiting groove 203, the inclined block 209 is located inside the injection groove 208, the first hydraulic rod 101 is slidably connected to the main body base 201, the driven rack 107 is slidably connected to the slide groove 202, the tops of the two driven racks 107 are respectively fixedly connected to the first side mold 205 and the second side mold 206, the lower mold base 108 is located between the first side mold 205 and the second side mold 206, and the lower mold base 108 is slidably connected to the first side mold 205 and the second side mold 206 respectively through the slider 109.

[0034] The cooling mechanism 3 includes two circulating water pumps 301. Four cooling pipes 302 are fixedly connected to the side of the two circulating water pumps 301 that are close to each other. The first side mold 205 and the second side mold 206 are located between the two circulating water pumps 301. The cooling pipes 302 pass through the surfaces of the first side mold 205 and the second side mold 206 respectively and extend into the interior of the first side mold 205 and the second side mold 206 respectively.

[0035] The injection molding mechanism 4 includes a hydraulic base 401, a second hydraulic rod 402 slidably connected to the bottom of the hydraulic base 401, an upper mold base 403 fixedly connected to the bottom of the second hydraulic rod 402, a first protrusion 404 opened at the bottom of the upper mold base 403, an injection hole 405 provided on the upper mold base 403, several second protrusions 406 fixedly connected to the bottom of the upper mold base 403, and two protruding rods 407 fixedly connected to the bottom of the upper mold base 403. The size of the first protrusion 404 is adapted to the size of the first groove 207, and the first protrusion 404 and the first groove 207 are engaged. The upper mold base 403 is located above the first side mold 205 and the second side mold 206.

[0036] The above-mentioned solution improves the cooling effect of the device by combining a circulating water pump 301 and four cooling pipes 302. The circulating water pump 301 injects coolant into the four cooling pipes 302, which then flow from the center to the opposite sides. Inside the first mold 205 and the second mold 206, the coolant carries away heat from the center to the edge, allowing the cooling rate of the most difficult-to-cool center position to reach a slow cooling balance with that of the edge position. This avoids excessive cooling that could cause segregation on the bearing body 501. At the same time, the four cooling pipes 302 inside the first mold 205 and the second mold 206 provide uniform cooling of the device, preventing uneven cooling that could cause cracks on the surface of the bearing body 501. Furthermore, the use of single-piece casting avoids the problems of low lead melting point, large product size, uneven cooling, and the risk of shrinkage pores during casting.

[0037] like Figure 7 As shown, the present invention provides a bearing for a mill, including a bearing mechanism 5. The bearing mechanism 5 includes a bearing body 501. A plurality of second grooves 502 are evenly provided on the top of the bearing body 501. Two small holes 503 are provided on the top of the bearing body 501. Two inclined grooves 504 are provided on both sides of the bearing body 501. The size of the second groove 502 is adapted to the size of the second protrusion 406. The size of the small hole 503 is adapted to the size of the protrusion 407. The size of the inclined groove 504 is adapted to the size of the inclined block 209.

[0038] The working principle and usage process of this invention: First, the device is in the following position... Figure 1In the working state shown, the first mold 205 and the second mold 206 are heated first. Then, the pre-molten lead liquid is injected into the injection tank 208 through the injection hole 405, so that the injection tank 208 is filled with lead liquid. Then, the coolant is injected into the four cooling pipes 302 by the circulating water pump 301 and flows from the center to the side away from each other along the four cooling pipes 302. Heat is carried away from the center position to the edge position inside the first mold 205 and the second mold 206, so that the center position, which is the most difficult to cool, can be cooled faster, so that the cooling rate of the center position is balanced with that of the edge position. At the same time, the four cooling pipes 302 are respectively set in the first mold 205 and the second mold 206 to cool the device evenly.

[0039] After cooling, the molten lead forms the bearing body 501 inside the injection molding tank 208. Then, the upper mold base 403 is raised by the second hydraulic rod 402, separating the bottom of the upper mold base 403 from the bearing body 501 and releasing the engagement between the first protrusion 404 and the first groove 207. Subsequently, the lifting plate 102 is raised by the first hydraulic rod 101. The upward movement of the lifting plate 102 drives the bidirectional rack 103 to move upward, which in turn causes the two meshing first gears 104 to rotate. The rotation of the first gears 104 drives the meshing transmission gear 105 to rotate in the opposite direction, and the rotation of the transmission gear 105 drives the meshing transmission gear 105 to rotate in the opposite direction. The meshing second gear 106 rotates in the same direction as the first gear 106. This rotation drives the two driven racks 107 meshing with it to move away from each other on the lifting plate 102, thereby causing the first side mold 205 and the second side mold 206 to move away from the bearing body 501. When the top of the lifting plate 102 abuts against the bottom of the lower mold base 108, the sliding connection between the first side mold 205 and the second side mold 206 and the slider 109 is released, and they separate from the bearing body 501. At this point, the lifting plate 102 continues to move upward, lifting the bearing body 501 through the lower mold base 108. Figure 4 The bearing body 501 is then removed from the state shown in the diagram to complete the production of the bearing body 501. Finally, the bearing body 501 is subjected to subsequent processing, such as removing the gate, cleaning the surface, and heat treatment if necessary.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A production equipment for mill bearings, comprising a lifting mechanism (1), characterized in that: The lifting mechanism (1) is provided with a mold mechanism (2), the mold mechanism (2) is provided with a cooling mechanism (3), and the mold mechanism (2) is provided with an injection molding mechanism (4) above it. The lifting mechanism (1) includes two first hydraulic rods (101), a lifting plate (102) is slidably connected to the top of the first hydraulic rods (101), a bidirectional rack (103) is fixedly connected to the bottom of the lifting plate (102), a first gear (104) is meshed on both sides of the bidirectional rack (103), a transmission gear (105) is meshed on the side of the two first gears (104) away from the bidirectional rack (103), a second gear (106) is meshed on the top of the two transmission gears (105), a driven rack (107) is meshed on the top of the two second gears (106), and a lower mold base (108) is provided on the top of the lifting plate (102), and three sliders (109) are fixedly connected to both sides of the lower mold base (108).

2. The mill bearing production equipment according to claim 1, characterized in that: The three sliders (109) are evenly distributed on the side of the lower mold base (108), the bidirectional rack (103) is located between the two first hydraulic rods (101), the second gear (106) is larger than the first gear (104), and the size of the first gear (104) is adapted to the size of the transmission gear (105).

3. The mill bearing production equipment according to claim 1, characterized in that: The mold mechanism (2) includes a main base (201), a sliding groove (202) is provided on the top of the main base (201), two limiting grooves (203) are provided on the top of the main base (201), a first side mold (205) and a second side mold (206) are slidably connected to the top of the main base (201), two limiting blocks (204) are fixedly connected to the bottom of the first side mold (205) and the second side mold (206), a first groove (207) is provided on the top of the first side mold (205) and the second side mold (206), an injection groove (208) is provided between the first side mold (205) and the second side mold (206), and an inclined block (209) is fixedly connected to the second side mold (206).

4. The mill bearing production equipment according to claim 3, characterized in that: The driven rack (107) is slidably connected to the slide groove (202), the limiting block (204) is slidably connected to the limiting groove (203), the inclined block (209) is located inside the injection molding groove (208), and the first hydraulic rod (101) is slidably connected to the main body base (201).

5. The mill bearing production equipment according to claim 3, characterized in that: The driven rack (107) is slidably connected to the slide groove (202). The tops of the two driven racks (107) are respectively fixedly connected to the first side mold (205) and the second side mold (206). The lower mold base (108) is located between the first side mold (205) and the second side mold (206). The lower mold base (108) is slidably connected to the first side mold (205) and the second side mold (206) respectively through the slider (109).

6. The mill bearing production equipment according to claim 3, characterized in that: The cooling mechanism (3) includes two circulating water pumps (301), and four cooling pipes (302) are fixedly connected to the side of the two circulating water pumps (301) that are close to each other.

7. The mill bearing production equipment according to claim 6, characterized in that: The first side mold (205) and the second side mold (206) are located between two circulating water pumps (301), and the cooling pipe (302) extends through the surface of the first side mold (205) and the second side mold (206) to the interior of the first side mold (205) and the second side mold (206) respectively.

8. The mill bearing production equipment according to claim 6, characterized in that: The injection molding mechanism (4) includes a hydraulic base (401), a second hydraulic rod (402) is slidably connected to the bottom of the hydraulic base (401), an upper mold base (403) is fixedly connected to the bottom of the second hydraulic rod (402), a first protrusion (404) is provided at the bottom of the upper mold base (403), an injection hole (405) is provided on the upper mold base (403), a plurality of second protrusions (406) are fixedly connected to the bottom of the upper mold base (403), and two protrusions (407) are fixedly connected to the bottom of the upper mold base (403).

9. The mill bearing production equipment according to claim 8, characterized in that: The size of the first protrusion (404) is adapted to the size of the first groove (207), and the first protrusion (404) and the first groove (207) are engaged. The upper mold base (403) is located above the first side mold (205) and the second side mold (206).

10. A mill bearing, applied to a mill bearing production equipment as described in claims 1-9, comprising a bearing mechanism (5), characterized in that: The bearing mechanism (5) includes a bearing body (501), a plurality of second grooves (502) are evenly provided on the top of the bearing body (501), two small holes (503) are provided on the top of the bearing body (501), and two inclined grooves (504) are provided on both sides of the bearing body (501). The size of the second groove (502) is adapted to the size of the second protrusion (406), the size of the small hole (503) is adapted to the size of the protrusion (407), and the size of the inclined groove (504) is adapted to the size of the inclined block (209).

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