High-speed heavy-load gear blank forming equipment and method

Abstract

The present invention relates to the field of gear blank forming, specifically to a high-speed and heavy-load gear blank forming device and method, comprising a casting mechanism, which is used for casting and forming the gear blank; a liquid injection mechanism, which is used to inject molten metal into the interior of the device; the casting mechanism is fixedly installed on the top of the liquid injection mechanism; wherein the casting mechanism includes a tray, the center part of the top of the tray is fixedly connected to a gear mold, and the top of the tray is fixedly connected to an electric push rod. The high-speed and heavy-load gear blank forming device and method rotates together with the threaded rod through a thrust bar, and pushes all the molding sand on the sliding plate outward, causing the molding sand to move outward from the circulation hole until it is in the space enclosed by the inner side of the gear mold and the outer side of the filling mold, thereby playing the role of filling the molding sand between the inner side of the gear mold and the outer side of the filling mold.

Description

Technical Field

[0001] The present invention relates to the technical field of gear blank forming, and in particular to a high-speed heavy-load gear blank forming device and method. Background Art

[0002] Casting is the process of pouring molten metal into a mold and allowing it to cool and solidify to create parts with the desired shape and properties. Casting is a commonly used manufacturing method, offering low costs, high process flexibility, and the ability to produce complex shapes and large castings. It accounts for a significant portion of machinery manufacturing, such as 60-80% for machine tools, 25% for automobiles, and 50-60% for tractors.

[0003] The following problems exist with existing gear blank forming equipment: 1. The casting process involves the solidification of liquid metal. During the solidification process, defects such as pores and shrinkage are easily generated inside the metal, resulting in the material's mechanical properties being inferior to those of forged blanks. 2. With existing sand filling, for gear shapes with protruding parts or complex contours, the distribution and compactness of the sand will be affected during vibration, resulting in excessive compaction in some areas and insufficient compaction around some thin-walled or slender parts. Summary of the Invention

[0004] The present invention provides a high-speed heavy-load gear blank forming device and method to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a high-speed heavy-load gear blank forming device, comprising a casting mechanism, the casting mechanism being used for the casting forming process of the gear blank;

[0006] A liquid injection mechanism, which is used to inject molten metal into the device;

[0007] The casting mechanism is fixedly mounted on the top of the liquid injection mechanism;

[0008] The casting mechanism includes a tray, a tooth mold is fixedly connected to the center of the top of the tray, an electric push rod is fixedly connected to the top of the tray, a three-side plate is fixedly connected to the top of the electric push rod, a servo motor is fixedly installed at the center of the three-side plate, the bottom of the servo motor is connected to a built-in telescopic rod through a coupling, and the bottom end of the built-in telescopic rod is fixedly connected to a sand-passing assembly;

[0009] The bottom of the servo motor housing is fixedly connected with a connecting rod, the bottom end of the connecting rod is fixedly connected with a suspension sleeve, and a compacting component is arranged on the outside of the suspension sleeve.

[0010] Preferably, the compaction assembly includes an insert plate, which is inserted into the bottom of the suspension sleeve and extends into the interior thereof. The bottom end of the suspension sleeve is fixedly connected to a support, and the interior of the support is connected to a limiting plate via a rotating shaft. The top of the limiting plate is extruded and adapted to the insert plate, and the bottom of the limiting plate is fixedly connected to a spring, and the end of the spring away from the limiting plate is fixedly connected to the inner side of the support.

[0011] Preferably, the end of the plug-in plate away from the suspension sleeve is fixedly connected to an arc plate, the end of the arc plate away from the plug-in plate is fixedly connected to a compacting head, the bottom of the arc plate is fixedly connected to a fitting ring, and the bottom of the fitting ring is fixedly connected to a No. 1 magnetic block.

[0012] Preferably, the sand-passing assembly includes a threaded rod, the top end of the threaded rod is fixedly connected to the built-in telescopic rod, the threaded rod is threadedly connected to the inner wall of the suspended sleeve, a vertical groove is provided on the outside of the threaded rod, the internal sliding adapter of the vertical groove is equipped with a slip ring, the outer side of the slip ring is fixedly connected to a thrust bar, the top of the thrust bar is fixedly connected to a top nest, and the top of the top nest is plugged with a No. 2 magnetic block.

[0013] Preferably, the bottom of the threaded rod is connected to a sliding disk through a bearing, the outer side of the sliding disk is fixedly connected to an elastic drainage plate, the end of the elastic drainage plate away from the sliding disk is fixedly connected to a filling mold, the inside of the filling mold is fixedly connected to a fixed disk, a circulation hole is opened on the outer side of the filling mold, and the top of the filling mold is extruded and adapted with compacting teeth.

[0014] Preferably, the injection mechanism includes a base plate, the top of the base plate is fixedly connected to a motor, the top of the motor is fixedly connected to an electric telescopic rod, the top of the electric telescopic rod is fixedly connected to a connecting piece, the internal sliding adapter of the connecting piece is equipped with a smoothing plate, the outer side of the output end of the motor is fixedly connected to a No. 1 gear, and the outer side of the No. 1 gear is meshed with a No. 2 gear.

[0015] Preferably, the inner side of the No. 2 gear is fixedly connected with a gear ring, the top of the gear ring is fixedly connected with a No. 1 connecting rod, the top of the No. 1 connecting rod is fixedly connected to the bottom of the tray, a slide groove is provided on the inner side of the gear ring, and a sliding rod is adapted for sliding inside the slide groove, the end of the sliding rod away from the gear ring is fixedly connected with a liquid injection assembly, the bottom of the gear ring is slidably adapted with a triangular plate, the bottom of the triangular plate is fixedly connected with the No. 2 connecting rod, and the No. 2 connecting rod is fixedly connected to the top of the base plate.

[0016] Preferably, the injection assembly includes a plugging head, which is inserted into the bottom of the tray and is flush with its top. A notch is provided at the bottom of the plugging head. The outer sliding adapter of the plugging head is equipped with a bottom sleeve, and the bottom sleeve is fixedly connected to the bottom of the tray. The inner sliding adapter of the bottom sleeve is equipped with an inner sleeve, and the inner wall of the inner sleeve is fixedly connected to a wreath, and the top of the wreath is fixedly connected to a support rod, and the support rod is fixedly installed at the bottom of the plugging head.

[0017] Preferably, the bottom of the inner sleeve is fixedly connected to a connecting tube, an inner groove is provided on the inner wall of the connecting tube, the interior of the connecting tube is rotatably connected to a rotating tube, the outer side of the rotating tube is fixedly connected to the sliding rod, a through hole is provided on the outer side of the rotating tube, an external groove is provided on the outer side of the rotating tube, the interior of the external groove is slidably adapted with a sliding rod, the top end of the sliding rod is fixedly connected to the connecting tube, and the bottom end of the rotating tube is rotatably connected to the external tube.

[0018] A method for forming a high-speed heavy-load gear blank comprises the following steps:

[0019] Step 1: Place the filling mold into the interior of the tooth mold, with a gap left between the filling mold and the tooth mold, and the gap is for the subsequent filling of molding sand. Then start the electric push rod, so that the three-side plate connected to the top will move downward with the servo motor, wherein the output end of the servo motor is connected to the built-in telescopic rod through a coupling, so the built-in telescopic rod will move the sand-passing assembly downward along the inner wall of the filling mold. At the same time, the outside of the servo motor is connected to the suspended sleeve through a connecting rod, so the compaction assembly connected to the outside of the suspended sleeve will move downward, but will not enter the interior of the filling mold, so as to make preliminary preparations for the subsequent sand filling process and mold forming.

[0020] Step 2: By starting the servo motor, the built-in telescopic rod will move upward with the threaded rod, wherein the outer side of the threaded rod is threadedly connected to the inner wall of the suspended sleeve, so the built-in telescopic rod will shrink, and the threaded rod will move upward along the inner wall of the suspended sleeve in a spiral manner. In addition, the bottom of the threaded rod is connected to the sliding disk through a bearing, so the sliding disk will move upward along the inner wall of the filling mold. At the same time, the molding sand is put into the sliding disk from the top of the filling mold, wherein the outer side of the threaded rod is provided with a vertical groove, and the internal sliding adapter of the vertical groove is equipped with a slip ring, and the outer side of the slip ring is connected to the thrust bar, so the thrust bar will rotate with the threaded rod and push all the molding sand on the sliding disk outward, causing the molding sand to move outward from the circulation hole until it is in the space enclosed by the inner side of the tooth mold and the outer side of the filling mold, so as to realize the filling process of the molding sand. In addition, the top of the thrust bar is fixedly connected with a top nesting, and the top of the top nesting is plugged with a No. 2 magnetic block. Therefore, when the thrust bar moves upward to a certain distance along with the threaded rod, a strong attraction is generated between the No. 2 magnetic block and the No. 1 magnetic block. The top of the No. 1 magnetic block is connected to the fitting ring, and the top of the fitting ring is connected to the arc plate. Therefore, under the attraction between the two magnetic blocks, the arc plate will bring the insert plate to squeeze the limit plate, causing the limit plate to deflect downward through the support and compress the spring. Eventually, the insert plate will fall off from the bottom of the suspended sleeve, and the fitting ring will fit with the top nesting. Therefore, the top nesting will rotate with the fitting ring, and at the same time, the compacting head fixedly connected to the outer side of the arc plate will squeeze the inner wall of the filling mold to make the molding sand filling more substantial and thorough.

[0021] Step 3: When the molding sand is filled, turn off the servo motor and extend the electric push rod upward to disengage the entire casting mechanism from the inside of the tooth mold. Then manually extend the smoothing plate outward so that the bottom of the smoothing plate fits on the top of the tooth mold. Then start the motor so that the electric telescopic rod connected to the top will rotate with the connector and the smoothing plate respectively. At the same time, the No. 1 gear fixedly connected to the output end of the motor will mesh with the No. 2 gear for transmission. The inner side of the No. 2 gear is connected to the tooth ring, and the top of the tooth ring is connected to the tray through the No. 1 connecting rod. Therefore, the entire tooth mold will rotate. At this time, the molten metal is passed inward from the bottom of the external pipe. As the molten metal rises , which will cause it to enter the rotating tube, wherein the outer side of the rotating tube is fixedly connected to a sliding rod, and the other end of the sliding rod is slidably adapted to the sliding groove on the inner side of the tooth ring, so the tooth ring will rotate with the rotating tube, wherein a through hole is provided on the surface of the rotating tube, and a connecting tube is rotatably connected to the outer side of the rotating tube, and an internal groove is provided on the inner side of the rotating tube, so when the through hole rotates to a position overlapping with the internal groove, the molten metal inside the rotating tube will pass through the through hole and the internal groove in turn into the connecting tube, and then the molten metal will pass through the connecting tube and the inner sleeve in turn into the bottom sleeve, and then the molten metal will enter the interior of the tooth mold through the notch provided at the bottom of the plugging head to carry out the casting process of the gear blank.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The thrust bar rotates along with the threaded rod and pushes all the molding sand on the sliding plate outward, causing the molding sand to move outward from the circulation hole until it is in the space enclosed by the inner side of the tooth mold and the outer side of the filling mold, thereby filling the space between the inner side of the tooth mold and the outer side of the filling mold with molding sand.

[0024] 2. The fitting ring will fit with the top nesting, so the top nesting will rotate with the fitting ring. At the same time, the compacting head fixedly connected to the outer side of the curved plate will squeeze the inner wall of the filling mold, so that the molding sand can be filled more fully and thoroughly.

[0025] 3. By rotating the entire gear mold, the rotary motion can help the molten metal fill the mold cavity better, especially for some gear parts with complex shapes, thin walls or small structures, which can increase the beauty of the blank molding.

[0026] 4. Bottom pouring can effectively reduce the generation of air holes. Compared with top pouring, bottom pouring can make the molten metal rise smoothly to fill the mold cavity, avoiding the splashing of molten metal and the entrainment of gas during the pouring process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the external structure of a high-speed and heavy-load gear blank forming equipment of the present invention.

[0028] Figure 2 It is a schematic cross-sectional structural diagram of the present invention as a whole.

[0029] Figure 3 It is a structural schematic diagram of the casting mechanism of the present invention.

[0030] Figure 4 It is a schematic cross-sectional structural diagram of the casting mechanism of the present invention.

[0031] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0032] Figure 6 It is a structural schematic diagram of the compacting assembly of the present invention.

[0033] Figure 7 It is a structural schematic diagram of the sand-passing component of the present invention.

[0034] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at point B in the middle.

[0035] Figure 9 It is a schematic cross-sectional structural diagram of the sand-passing assembly of the present invention.

[0036] Figure 10 It is a structural schematic diagram of the liquid injection mechanism of the present invention.

[0037] Figure 11 It is a schematic cross-sectional structural diagram of the liquid injection mechanism of the present invention.

[0038] Figure 12 This is a schematic diagram of the full cross-section structure of the liquid injection component of the present invention.

[0039] Figure 13 For the present invention Figure 12 Schematic diagram of the enlarged structure at point C in the middle.

[0040] Figure 14 For the present invention Figure 12 Schematic diagram of the enlarged structure at point D in the middle.

[0041] In the figure: 1. casting mechanism; 2. injection mechanism; 11. tray; 12. tooth mold; 13. three-side plate; 14. servo motor; 15. built-in telescopic rod; 16. suspension sleeve; 17. connecting rod; 18. compacting assembly; 19. sand passing assembly; 10. electric push rod; 181. insert plate; 182. support; 183. limit plate; 184. spring; 185. arc plate; 186. compacting head; 187. fitting ring; 188. No. 1 magnetic block; 191. threaded rod; 192. vertical groove; 193. slip ring; 194. thrust strip; 195. top nesting; 196. No. 2 magnetic block; 197. sliding disk; 198. fixed disk; 199. filling mold; 190. flow Through hole; 1901, elastic drainage plate; 1902, compacting tooth plate; 21, bottom plate; 22, motor; 23, electric telescopic rod; 24, connector; 25, smoothing plate; 26, gear No. 1; 27, gear No. 2; 28, tooth ring; 29, connecting rod No. 1; 20, triangle plate; 201, injection assembly; 202, connecting rod No. 2; 203, sliding rod; 2011, plugging head; 2012, notch; 2013, bottom sleeve; 2014, support rod; 2015, wreath; 2016, inner sliding sleeve; 2017, connecting tube; 2018, inner groove; 2019, rotating tube; 2010, through hole; 101, external groove; 102, sliding rod; 103, external tube. DETAILED DESCRIPTION

[0042] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments. It should be noted that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0043] See also Figures 1 to 14 , the present invention provides a technical solution: Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, it includes a casting mechanism 1, which is used for casting and molding of gear blanks;

[0044] A liquid injection mechanism 2, which is used to inject molten metal into the device;

[0045] The casting mechanism 1 is fixedly mounted on top of the liquid injection mechanism 2 .

[0046] The casting mechanism 1 includes a tray 11, a tooth mold 12 is fixedly connected to the center of the top of the tray 11, an electric push rod 10 is fixedly connected to the top of the tray 11, a three-side plate 13 is fixedly connected to the top of the electric push rod 10, a servo motor 14 is fixedly installed at the center of the three-side plate 13, the bottom of the servo motor 14 is connected to a built-in telescopic rod 15 through a coupling, the bottom end of the built-in telescopic rod 15 is fixedly connected to a sand-passing assembly 19, the bottom of the servo motor 14 housing is fixedly connected to a connecting rod 17, the bottom end of the connecting rod 17 is fixedly connected to a suspended sleeve 16, and a compaction assembly 18 is provided on the outside of the suspended sleeve 16. By placing the filling mold 199 into the interior of the tooth mold 12, a gap is left between the filling mold 199 and the tooth mold 12, and the gap is for the subsequent filling of molding sand. Then the electric push rod 10 is started again, so that the three-side plate 13 connected to the top thereof will move downward with the servo motor 14, wherein the output end of the servo motor 14 is connected to the built-in telescopic rod 15 through a coupling, so the built-in telescopic rod 15 will carry the sand-passing assembly 19 downward along the inner wall of the filling mold 199 until it moves to its bottom. At the same time, the outer side of the servo motor 14 is connected to the suspended sleeve 16 through the connecting rod 17, so the compaction assembly 18 connected to the outer side of the suspended sleeve 16 will move downward, but will not enter the interior of the filling mold 199, thereby playing a role in making preliminary preparations for the subsequent sand filling process and mold forming.

[0047] The compacting assembly 18 includes an insert plate 181, which is inserted into the bottom of the suspension sleeve 16 and extends into the interior thereof. The bottom end of the suspension sleeve 16 is fixedly connected to a support 182, and the interior of the support 182 is connected to a limiting plate 183 through a rotating shaft. The top of the limiting plate 183 is squeezed and adapted to the insert plate 181, and the bottom of the limiting plate 183 is fixedly connected to a spring 184. The end of the spring 184 away from the limiting plate 183 is fixedly connected to the inner side of the support 182, and the end of the insert plate 181 away from the suspension sleeve 16 is fixedly connected to an arc plate 185, and the end of the arc plate 185 away from the insert plate 181 is fixedly connected to a compacting head 186, and the bottom of the arc plate 185 is fixedly connected to a fitting ring 187, and the bottom of the fitting ring 187 is fixedly connected to a No. 1 magnetic block 188. In addition, the top of the thrust bar 194 is fixedly connected to the top nesting 195, and the top of the top nesting 195 is plugged with the second magnetic block 196. Therefore, when the thrust bar 194 moves upward to a certain distance along with the threaded rod 191, the second magnetic block 196 will generate a strong attraction with the first magnetic block 188. The top of the first magnetic block 188 is connected to the fitting ring 187, and the top of the fitting ring 187 is connected to the arc plate 185. Therefore, the arc plate 185 will carry the insert plate under the attraction between the two magnetic blocks. 181 squeezes the limit plate 183, causing the limit plate 183 to deflect downward through the support 182 and compress the spring 184. Eventually, the insert plate 181 will fall off from the bottom of the suspended sleeve 16, and the fitting ring 187 will fit with the top nest 195. Therefore, the top nest 195 will rotate with the fitting ring 187. At the same time, the compacting head 186 fixedly connected to the outer side of the arc plate 185 will squeeze the inner wall of the filling mold 199, thereby allowing the molding sand to be filled more fully and thoroughly.

[0048] like Figure 7 、 Figure 8 and Figure 9As shown, the sand-passing assembly 19 includes a threaded rod 191, the top of the threaded rod 191 is fixedly connected to the built-in telescopic rod 15, the threaded rod 191 is threadedly connected to the inner wall of the suspension sleeve 16, a vertical groove 192 is provided on the outside of the threaded rod 191, and a slip ring 193 is adapted for sliding inside the vertical groove 192. The outside of the slip ring 193 is fixedly connected to a thrust bar 194, the top of the thrust bar 194 is fixedly connected to a top nest 195, and the top of the top nest 195 is plugged with a second magnetic block 196. The bottom of the threaded rod 191 is connected to a sliding disk 197 through a bearing, and the outside of the sliding disk 197 is fixedly connected to an elastic drainage piece 1901, wherein the vertical groove 192 The role of the sliding ring 193 and the thrust bar 194 is to provide a floating force to prevent the molding sand from being stuck between the thrust bar 194 and the molding sand. In addition, the outer side of the sliding plate 197 is connected to the filling mold 199 through an elastic drainage piece 1901, wherein the elastic drainage piece 1901 not only drains the molding sand, but also blocks the filled molding sand to prevent the molding sand that enters the inner side of the tooth mold 12 and the outer side of the filling mold 199 from re-entering the sliding plate 197. The end of the elastic drainage piece 1901 away from the sliding plate 197 is fixedly connected to the filling mold 199. By starting the servo motor 14, the built-in telescopic The rod 15 will move upward with the threaded rod 191, wherein the outer side of the threaded rod 191 is threadedly connected to the inner wall of the suspension sleeve 16, so the built-in telescopic rod 15 will shrink, and the threaded rod 191 will move upward along the inner wall of the suspension sleeve 16. In addition, the bottom of the threaded rod 191 is connected to the sliding plate 197 through a bearing, so the sliding plate 197 will move upward along the inner wall of the filling mold 199. At the same time, the molding sand is put into the sliding plate 197 from the top of the filling mold 199. The outer side of the threaded rod 191 is provided with a vertical groove 192, and the internal sliding of the vertical groove 192 is adapted to be equipped with a slip ring 193, and the sliding ring 193 is provided. The outer side of the ring 193 is connected to the thrust bar 194, so the thrust bar 194 will rotate with the threaded rod 191 and push all the molding sand on the sliding plate 197 outward, causing the molding sand to move outward from the circulation hole 190 until it is in the space surrounded by the inner side of the tooth mold 12 and the outer side of the filling mold 199, thereby filling the molding sand between the inner side of the tooth mold 12 and the outer side of the filling mold 199. The interior of the filling mold 199 is fixedly connected to the fixed plate 198, the outer side of the filling mold 199 is provided with a circulation hole 190, and the top extrusion adapter of the filling mold 199 is equipped with a compacting tooth plate 1902.

[0049] like Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 and Figure 14As shown, the liquid injection mechanism 2 includes a base plate 21, the top of the base plate 21 is fixedly connected to a motor 22, the top of the motor 22 is fixedly connected to an electric telescopic rod 23, the top of the electric telescopic rod 23 is fixedly connected to a connecting piece 24, and the internal sliding adaptation of the connecting piece 24 is equipped with a caressing plate 25, wherein the caressing plate 25 plays the role of pushing the overflowing molten metal or molding sand outward, the outer side of the output end of the motor 22 is fixedly connected to a No. 1 gear 26, the outer side of the No. 1 gear 26 is meshed with a No. 2 gear 27, the inner side of the No. 2 gear 27 is fixedly connected to a toothed ring 28, and the top of the toothed ring 28 is fixedly connected to a No. 1 connecting rod 29. When the molding sand is filled, the servo motor 14 is turned off, and the electric push rod 10 is extended upward, so that the entire casting mechanism 1 is detached from the inside of the tooth mold 12, and then the caressing plate 25 is manually extended outward, so that the bottom of the caressing plate 25 is attached to the top of the tooth mold 12, and then the motor 22 is started, so that the electric telescopic rod 23 connected to the top thereof will respectively carry the connecting piece 24 and the smoothing plate 25 rotate, and at the same time, the No. 1 gear 26 fixedly connected to the output end of the motor 22 will mesh with the No. 2 gear 27 for transmission, wherein the inner side of the No. 2 gear 27 is connected to the toothed ring 28, and the top of the toothed ring 28 is connected to the tray 11 through the No. 1 connecting rod 29, so the entire tooth mold 12 will rotate, thereby allowing the molten metal to better fill the mold cavity through rotational motion, especially for some gear parts with complex shapes, thin walls or small structures, thereby increasing the beautification degree of the blank forming, the top of the No. 1 connecting rod 29 is fixedly connected to the bottom of the tray 11, a slide groove is provided on the inner side of the toothed ring 28, and the internal sliding of the slide groove is adapted to a sliding rod 203, and the end of the sliding rod 203 away from the toothed ring 28 is fixedly connected to the injection assembly 201, and the bottom sliding of the toothed ring 28 is adapted to a triangular plate 20, and the bottom of the triangular plate 20 is fixedly connected to the No. 2 connecting rod 202, and the No. 2 connecting rod 202 is fixedly connected to the top of the bottom plate 21.

[0050] The liquid injection component 201 includes a plug 2011, which is inserted into the bottom of the tray 11 and is flush with the top thereof. A notch 2012 is provided at the bottom of the plug 2011. The outer sliding adapter of the plug 2011 is equipped with a bottom sleeve 2013, which is fixedly connected to the bottom of the tray 11. The inner sliding adapter of the bottom sleeve 2013 is equipped with an inner sleeve 2016. The inner wall of the inner sleeve 2016 is fixedly connected with a wreath 2015. The top of the wreath 2015 is fixedly connected with a support rod 2014. The support rod 2014 is fixedly installed at the bottom of the plug 2011. The bottom of the inner sleeve 2016 is fixedly connected with a connecting pipe 2017. The inner wall of the connecting pipe 2017 is equipped with an inner groove 2018. The connecting pipe 2 The internal rotation of 017 is connected to a rotating tube 2019, and the outer side of the rotating tube 2019 is fixedly connected to the sliding rod 203. A through hole 2010 is provided on the outer side of the rotating tube 2019, and an external groove 101 is provided on the outer side of the rotating tube 2019. The internal sliding of the external groove 101 is adapted to be equipped with a sliding rod 102, and the top of the sliding rod 102 is fixedly connected to the connecting tube 2017, wherein there is a friction relationship between the sliding rod 203 and the sliding groove, so the connecting tube 2017 can be manually moved downward, and the inner sleeve 2016, the wreath 2015, the support rod 2014 and the plugging head 2011 will all move downward, and the plugging head 2011 will extend downward from the bottom of the tray 11, and then the molten metal will enter the interior of the tooth mold 12. Similarly, when the connecting tube 2017 is moved upward, the plug 2011 will block the tray 11 again, preventing the molten metal from entering the interior of the tooth mold 12. The bottom end of the rotating tube 2019 is rotatably connected to the external tube 103. At this time, the molten metal is introduced from the bottom of the external tube 103. As the molten metal rises, it will enter the rotating tube 2019. The outer side of the rotating tube 2019 is fixedly connected to the sliding rod 203, and the other end of the sliding rod 203 is slidably adapted to the inner groove of the tooth ring 28. The shape of the groove is a vertical rectangular groove, so the tooth ring 28 will rotate with the rotating tube 2019. The surface of the rotating tube 2019 is provided with a through hole 2010, and is rotatably connected to the outer side of the rotating tube 2019 with the connecting tube 2017, the inner side of which is provided with an inner groove. 2018, so when the through hole 2010 rotates to a position that coincides with the internal groove 2018, the molten metal inside the rotating tube 2019 will pass through the through hole 2010 and the internal groove 2018 in turn into the connecting tube 2017, and then the molten metal will pass through the connecting tube 2017 and the inner sleeve 2016 in turn into the bottom sleeve 2013, and then the molten metal will pass through the notch 2012 opened at the bottom of the plug 2011 into the interior of the tooth mold 12 to carry out the casting process of the gear blank, thereby adopting the bottom pouring method, which can effectively reduce the generation of pores.Compared with top pouring, bottom pouring can make the molten metal rise smoothly to fill the mold cavity, avoiding splashing of the molten metal and the entrainment of gas during the pouring process.

[0051] The above embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Various changes made by ordinary technicians in this field based on the above concepts without creative work fall within the scope of protection of the present invention.

Claims

1. A high-speed heavy-load gear blank forming equipment, characterized in that: include: A casting mechanism (1), the casting mechanism (1) is used for casting and molding a gear blank; A liquid injection mechanism (2), the liquid injection mechanism (2) being used to inject molten metal into the interior of the device; The casting mechanism (1) is fixedly mounted on the top of the liquid injection mechanism (2); The casting mechanism (1) comprises a tray (11), a tooth mold (12) is fixedly connected to the center of the top of the tray (11), an electric push rod (10) is fixedly connected to the top of the tray (11), a three-side plate (13) is fixedly connected to the top of the electric push rod (10), a servo motor (14) is fixedly installed at the center of the three-side plate (13), the bottom of the servo motor (14) is connected to a built-in telescopic rod (15) through a coupling, and the bottom end of the built-in telescopic rod (15) is fixedly connected to a sand-passing assembly (19); The bottom of the servo motor (14) housing is fixedly connected to a connecting rod (17), the bottom end of the connecting rod (17) is fixedly connected to a suspension sleeve (16), and a compacting assembly (18) is provided on the outside of the suspension sleeve (16); The injection mechanism (2) includes a base plate (21), the top of the base plate (21) is fixedly connected to a motor (22), the top of the motor (22) is fixedly connected to an electric telescopic rod (23), the top of the electric telescopic rod (23) is fixedly connected to a connecting piece (24), the interior of the connecting piece (24) is slidably adapted to be provided with a smoothing plate (25), the outer side of the output end of the motor (22) is fixedly connected to a No. 1 gear (26), and the outer side of the No. 1 gear (26) is meshed with a No. 2 gear (27); The inner side of the second gear (27) is fixedly connected with a toothed ring (28), the top of the toothed ring (28) is fixedly connected with a first connecting rod (29), the top of the first connecting rod (29) is fixedly connected to the bottom of the tray (11), the inner side of the toothed ring (28) is provided with a slide groove, and the inner sliding adaptor of the slide groove is provided with a sliding rod (203), the end of the sliding rod (203) away from the toothed ring (28) is fixedly connected with a liquid injection assembly (201), the bottom of the toothed ring (28) is slidably adapted with a triangular plate (20), the bottom of the triangular plate (20) is fixedly connected with a second connecting rod (202), and the second connecting rod (202) is fixedly connected to the top of the bottom plate (21); The injection assembly (201) comprises a plug (2011), the plug (2011) is inserted into the bottom of the tray (11) and is flush with the top thereof, a notch (2012) is provided at the bottom of the plug (2011), the outer side of the plug (2011) is slidably adapted to be provided with a bottom connection sleeve (2013), the bottom connection sleeve (2013) is fixedly connected to the bottom of the tray (11), the inner side of the bottom connection sleeve (2013) is slidably adapted to be provided with an inner sliding sleeve (2016), the inner wall of the inner sliding sleeve (2016) is fixedly connected to a wreath (2015), the top of the wreath (2015) is fixedly connected to a support rod (2014), and the support rod (2014) is fixedly mounted on the bottom of the plug (2011); The bottom of the inner sliding sleeve (2016) is fixedly connected to a connecting tube (2017), an inner groove (2018) is provided on the inner wall of the connecting tube (2017), the interior of the connecting tube (2017) is rotatably connected to a rotating tube (2019), the outer side of the rotating tube (2019) is fixedly connected to a sliding rod (203), a through hole (2010) is provided on the outer side of the rotating tube (2019), an external groove (101) is provided on the outer side of the rotating tube (2019), the interior of the external groove (101) is slidably adapted to a sliding rod (102), the top end of the sliding rod (102) is fixedly connected to the connecting tube (2017), and the bottom end of the rotating tube (2019) is rotatably connected to an external tube (103).

2. The high-speed, heavy-load gear blank forming equipment according to claim 1, characterized in that: The compacting assembly (18) includes an insert plate (181), which is inserted into the bottom of the suspension sleeve (16) and extends into the interior thereof. The bottom end of the suspension sleeve (16) is fixedly connected to a support (182), and the interior of the support (182) is connected to a limit plate (183) via a rotating shaft. The top of the limit plate (183) is squeezed and adapted to the insert plate (181), and the bottom of the limit plate (183) is fixedly connected to a spring (184), and one end of the spring (184) away from the limit plate (183) is fixedly connected to the inner side of the support (182).

3. The high-speed, heavy-load gear blank forming equipment according to claim 2, characterized in that: One end of the insert plate (181) away from the suspended sleeve (16) is fixedly connected to a curved plate (185), one end of the curved plate (185) away from the insert plate (181) is fixedly connected to a compacting head (186), the bottom of the curved plate (185) is fixedly connected to a fitting ring (187), and the bottom of the fitting ring (187) is fixedly connected to a No. 1 magnetic block (188).

4. The high-speed, heavy-load gear blank forming equipment according to claim 3, characterized in that: The sand-passing assembly (19) comprises a threaded rod (191), the top end of the threaded rod (191) is fixedly connected to the built-in telescopic rod (15), the threaded rod (191) is threadedly connected to the inner wall of the suspended sleeve (16), a vertical groove (192) is provided on the outside of the threaded rod (191), a slip ring (193) is provided inside the vertical groove (192), a thrust bar (194) is fixedly connected to the outside of the slip ring (193), a top nest (195) is fixedly connected to the top of the thrust bar (194), and a second magnetic block (196) is plugged into the top of the top nest (195).

5. The high-speed, heavy-load gear blank forming equipment according to claim 4, characterized in that: The bottom of the threaded rod (191) is connected to a sliding disk (197) via a bearing, the outer side of the sliding disk (197) is fixedly connected to an elastic drainage plate (1901), the end of the elastic drainage plate (1901) away from the sliding disk (197) is fixedly connected to a filling mold (199), the interior of the filling mold (199) is fixedly connected to a fixed disk (198), the outer side of the filling mold (199) is provided with a flow hole (190), and the top of the filling mold (199) is extruded and adapted with a compacting tooth plate (1902).

6. A method for forming a high-speed heavy-load gear blank, used in the high-speed heavy-load gear blank forming equipment according to claim 5, characterized in that: The following steps are involved: Step 1: Place the filling mold (199) into the interior of the tooth mold (12), wherein a gap is left between the filling mold (199) and the tooth mold (12), and the gap is for the subsequent filling process of the molding sand, and then start the electric push rod (10), so that the three-side plate (13) connected to the top thereof will move downward with the servo motor (14), wherein the output end of the servo motor (14) is connected to the built-in telescopic rod (15) through a coupling, so the built-in telescopic rod (15) will move downward with the sand-passing assembly (19) along the inner wall of the filling mold (199), and at the same time, the outer side of the servo motor (14) is connected to the suspended sleeve (16) through a connecting rod (17), so the compacting assembly (18) connected to the outer side of the suspended sleeve (16) will move downward, but will not enter the interior of the filling mold (199), so as to make preliminary preparations for the subsequent sand filling process and mold forming; Step 2: By starting the servo motor (14), the built-in telescopic rod (15) will move upward with the threaded rod (191), wherein the outer side of the threaded rod (191) is threadedly connected to the inner wall of the suspension sleeve (16), so the built-in telescopic rod (15) will shrink, and at the same time, the threaded rod (191) will move upward along the inner wall of the suspension sleeve (16). In addition, the bottom of the threaded rod (191) is connected to the sliding plate (197) through a bearing, so the sliding plate (197) will move upward along the inner wall of the filling mold (199), and at the same time, the molding sand will be taken out of the filling mold ( The top of the screw rod (199) is put into the sliding plate (197), wherein the outer side of the threaded rod (191) is provided with a vertical groove (192), and the inner sliding adaptor of the vertical groove (192) is provided with a slip ring (193), and the outer side of the slip ring (193) is connected to the thrust bar (194), so the thrust bar (194) rotates with the screw rod (191) and pushes all the molding sand on the sliding plate (197) outward, causing the molding sand to move outward from the circulation hole (190) until it is in the space enclosed by the inner side of the tooth mold (12) and the outer side of the filling mold (199), to achieve Now, the filling process of the molding sand is carried out. In addition, the top of the thrust bar (194) is fixedly connected with the top nesting (195), and the top of the top nesting (195) is plugged with the second magnetic block (196). Therefore, when the thrust bar (194) moves upward to a certain distance along with the threaded rod (191), the second magnetic block (196) will generate a strong attraction with the first magnetic block (188), wherein the top of the first magnetic block (188) is connected to the fitting ring (187), and the top of the fitting ring (187) is connected to the arc plate (185). Therefore, the arc plate (185) is attracted by the attraction between the two magnetic blocks. , will bring the insert plate (181) to squeeze the limit plate (183), causing the limit plate (183) to deflect downward through the support (182) and compress the spring (184), and finally the insert plate (181) will fall off from the bottom of the suspended sleeve (16), and the fitting ring (187) will fit with the top nest (195), so the top nest (195) will rotate with the fitting ring (187), and at the same time, the compacting head (186) fixedly connected to the outside of the arc plate (185) will squeeze the inner wall of the filling mold (199), so as to make the molding sand filling more substantial and more thorough; Step 3: After the molding sand is filled, turn off the servo motor (14) and extend the electric push rod (10) upwards, so that the entire casting mechanism (1) is separated from the inside of the tooth mold (12), and then manually extend the smoothing plate (25) outwards, so that the bottom of the smoothing plate (25) is attached to the top of the tooth mold (12), and then start the motor (22) so that the electric telescopic rod (23) connected to the top will rotate with the connecting piece (24) and the smoothing plate (25), and at the same time, the electric telescopic rod (23) connected to the top of the electric telescopic rod (23) will rotate with the connecting piece (24) and the smoothing plate (25). The No. 1 gear (26) on the output end of the machine (22) is meshed with the No. 2 gear (27) for transmission, wherein the inner side of the No. 2 gear (27) is connected to the tooth ring (28), and the top of the tooth ring (28) is connected to the tray (11) through the No. 1 connecting rod (29), so that the entire tooth mold (12) will rotate, and the molten metal is introduced from the bottom of the external pipe (103) to the inside. As the molten metal rises, it will enter the rotating tube (2019), wherein the rotating tube (20 19) is fixedly connected to the outside of the sliding rod (203), and the other end of the sliding rod (203) is slidably adapted to the inner groove of the toothed ring (28), so that the toothed ring (28) will rotate with the rotating tube (219), wherein the surface of the rotating tube (219) is provided with a through hole (2010), and a connecting tube (2017) is rotatably connected to the outside of the rotating tube (219), and the inner side of the connecting tube (2017) is provided with an inner groove (218), so when the through hole (2010) rotates to the inner groove, the connecting tube (2017) is provided with an inner groove (218). When the grooves (2018) overlap, the molten metal inside the rotating tube (2019) will enter the connecting tube (2017) through the through hole (2010) and the internal groove (2018) in turn, and then the molten metal will enter the bottom sleeve (213) through the connecting tube (2017) and the inner sleeve (2016) in turn, and then the molten metal will enter the interior of the gear mold (12) through the notch (212) opened at the bottom of the plug (2011) to carry out the casting process of the gear blank.

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