Double-circular-arc tooth profile medium-hard tooth surface reducer of metallurgical pulverizer

Abstract

The application discloses a double-circular-arc-tooth-shaped medium-hard-tooth-surface speed reducer of a metallurgical pulverizer, which comprises a speed reducer device and a rotating speed detection device, and the bottom end of the speed reducer device is fixedly connected with the bottom of the rotating speed detection device. The output assembly is arranged, the movable ball is slowly rotated in the adapter pipe under the drive of the rotating motor, a small amount of lubricating oil flows downward into the oil inlet pipe through the through hole, the lubricating oil in the oil inlet pipe is dripped on the surface of the sponge body through the oil hole, and the lubricating oil in the sponge body is continuously applied on the surface of the output shaft, so that the output shaft can be maintained and lubricated, the abrasion of the output shaft is reduced, the service life of the speed reducer is prolonged, the rotating speed of the output shaft can be sensed by the induction groove and the induction ring, the display screen can display the real-time rotating speed data of the output shaft, the input end can be adjusted according to the rotating speed data, the required speed reduction effect is achieved, the working efficiency is effectively improved, time and labor are saved, and the speed reducer is favorable for actual use.

Description

Technical Field

[0001] This invention relates to the field of speed reducer technology, specifically to a double-circular-arc tooth profile medium-hard tooth surface speed reducer for metallurgical grinding mills. Background Technology

[0002] Grinding mills are widely used in industries such as chemical, mining, steel, thermal power, and coal. Specific grinding equipment includes Raymond mills, high-fineness pulverizers, high-pressure micro powder mills, and high-pressure suspension roller mills. Other related equipment includes feeders, bucket elevators, conveyors, and other conveying equipment. Metallurgical grinding mills require the use of double-arc tooth profile medium-hard tooth surface reducers during operation. Medium-hard tooth surface reducers are mechanical devices with a high-speed shaft speed not exceeding 1000 r / min. They are widely used in the transmission mechanisms of various mechanical equipment in transportation, metallurgy, mining, chemical, and light industries. They have a wide reduction ratio range (nominal speed ratio 10-200) and high mechanical transmission efficiency (96% for two-stage and 94% for three-stage).

[0003] In the prior art, such as the Chinese patent application CN106468342A entitled "A Bevel Gear Hardened Tooth Surface Reducer", a housing is included. The housing includes a housing body, a connecting hole is provided on one side wall of the housing body, and a shaft seat is provided inside the housing body. The shaft seat is located near the side where the connecting hole is located, and the shaft seat has a mounting hole with an axis parallel to the axis of the connecting hole. The connecting hole has a notch on the side near the shaft seat. In a view parallel to the axis of the mounting hole, the center of the mounting hole is located in the notch, and the minimum distance between the side wall of the notch and the axis of the mounting hole is greater than the radius of the boring bar. An input component is installed on the connecting hole. The input component includes an input flange and an input shaft fitted in the input flange. Input end bearings are respectively provided between the two ends of the input flange and the input shaft. A gear shaft is fitted in the mounting hole, and a large gear and a small gear meshing with each other are respectively provided between the gear shaft and the input shaft.

[0004] However, during operation, existing hardened tooth surface reducers experience increased friction between the output shaft and the machine body due to vibration. This leads to severe wear on the output shaft, affecting the overall functionality of the reducer, reducing its service life, and hindering practical use. To address these issues, a double circular arc tooth profile medium-hardened tooth surface reducer for metallurgical grinding mills is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a double-circular-arc tooth profile medium-hardened tooth surface reducer for metallurgical grinding mills. This addresses the problem mentioned in the background section where existing hardened tooth surface reducers, due to machine vibration, experience increased friction between the output shaft and the machine body during prolonged use, leading to severe wear on the output shaft. This affects the overall functionality of the reducer, reduces its lifespan, and is detrimental to practical use. This invention addresses this issue by setting up an output component where a rotating motor drives a movable ball to slowly rotate within a transfer tube. A small amount of lubricating oil flows downwards through a through-hole into the oil inlet pipe. The lubricating oil in the oil inlet pipe then drips onto the surface of a sponge through an oil hole. The lubricating oil in the sponge is continuously coated onto the output shaft surface, thus providing lubrication and maintenance, reducing wear on the output shaft, and improving the overall lifespan of the reducer. Simultaneously, the sensing groove and sensing coil can sense the output shaft speed, and the display screen shows real-time output shaft speed data. This allows for convenient adjustments to the input end based on the speed data, achieving the desired reduction effect, effectively improving work efficiency, saving time and effort, and benefiting practical use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a double-arc tooth profile medium-hard tooth surface reducer for a metallurgical grinding mill, comprising a reducer device and a speed detection device. The bottom end of the reducer device is fixedly connected to the bottom of the speed detection device. The reducer device includes a top cover, a housing, a base, an input shaft, a fourth gear, a third gear, and a first gear. One end of the fourth gear is rotatably mounted to the inner side of the housing, and the other end of the fourth gear is provided with an output component. One end of the output component is fixedly mounted to one end of the housing. The output component includes a bearing sleeve, a fixed disc, an output shaft, an oil cylinder, a rubber ring, a fixed outer ring, a conveying pipe, a transfer pipe, and an oil inlet pipe. One side of the fixed outer ring is fixedly connected to the inner side of the fixed disc, and the other side of the fixed outer ring is arranged in a ring array. The device is equipped with multiple spring components, one end of which is fixedly connected to one side of a rubber ring. A sponge is provided on the top of the rubber ring. An oil hole is opened through the top of one end of the fixed outer ring. The outer side of the output shaft is in contact with the inner side of the rubber ring. The bottom of the oil inlet pipe is fixedly connected to the outer side of the oil hole, and the top of the oil inlet pipe is fixedly connected to the bottom of the adapter pipe. The bottom of the delivery pipe is fixedly connected to the top of the adapter pipe, and the top of the delivery pipe is fixedly connected to the bottom of the oil cylinder. A movable ball is provided inside the adapter pipe. A through hole is opened through one end of the movable ball. One end of the movable ball is rotatably connected to the inner wall of the adapter pipe, and a rotating motor is provided at the other end of the movable ball. One end of the output shaft is fixedly installed with one end of the gear four.

[0007] Preferably, the top of the oil cylinder is fixedly connected to the outer side of the fixed disk, one side of the fixed disk is fixedly connected to one end of the bearing sleeve, and four connecting bolts are arranged in a circular array on the outer side of the fixed disk.

[0008] Preferably, the fixed plate is fixedly installed to the outside of the housing by connecting bolts, and the speed detection device includes a detector, a sensing ring and a main body.

[0009] Preferably, the inner side of the detector is fixedly connected to one side of the sensing ring, one end of the detector has a plurality of sensing slots arranged in a circular array, and one end of the detector is provided with a sensing coil.

[0010] Preferably, the top of the main body is welded and fixed to the bottom of the detector, and two mounting bolts are symmetrically arranged at the bottom of the main body. The main body is fixedly connected to the top end of the base by the mounting bolts.

[0011] Preferably, a display screen is provided on the outer side of the main body, the bottom of the outer shell is fixedly installed with the top of the base, and a fixing bolt is threadedly connected to the top of the outer shell.

[0012] Preferably, an oil seal is provided on the top of the top cover, one end of the gear three is fixedly connected to the gear two, one end of the gear one is rotatably mounted to the inner side of the housing, and the other end of the gear one is fixedly connected to one end of the input shaft.

[0013] Preferably, the outer side of gear one meshes with the outer side of gear three, the outer side of gear two meshes with the outer side of gear four, one end of gear three is rotatably connected to the inner side of the outer casing, and one end of gear two is rotatably connected to the inner side of the outer casing.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In this invention, by setting an output component, the rotating motor drives the movable ball to rotate slowly inside the transfer tube. A small amount of lubricating oil flows downward through the through hole into the oil inlet pipe. The lubricating oil in the oil inlet pipe then drips through the oil hole onto the surface of the sponge at the bottom, thereby immersing the sponge in lubricating oil. The lubricating oil in the sponge is continuously coated on the surface of the output shaft, thus playing a role in maintaining and lubricating the output shaft. At the same time, it can reduce the friction of the output shaft during rotation, reduce wear on the output shaft, improve the overall service life of the reducer, increase the durability of the device, and benefit practical use.

[0016] 2. In this invention, during actual use, the sensing groove and sensing coil can sense the rotational speed of the output shaft, and then the speed information is transmitted to the display screen of the main body through the detector. The display screen can display the real-time output shaft speed data, which makes it convenient for the staff to clearly understand the rotational speed of the output shaft and to make corresponding adjustments to the input end according to the speed data, thereby achieving the required deceleration effect, effectively improving work efficiency, saving time and effort, and benefiting practical use. Attached Figure Description

[0017] Figure 1 This is a perspective view of a metallurgical grinding mill double circular arc tooth profile medium hard tooth surface reducer according to the present invention;

[0018] Figure 2 This is a schematic diagram of the rear structure of a metallurgical grinding mill double circular arc tooth profile medium hard tooth surface reducer according to the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of a double-circular-arc tooth profile medium-hard tooth surface reducer for a metallurgical grinding mill according to the present invention;

[0020] Figure 4 This is a schematic diagram of the speed detection device for a metallurgical grinding mill double circular arc tooth profile medium hard tooth surface reducer according to the present invention;

[0021] Figure 5 This is a schematic diagram of the output component of a metallurgical grinding mill double circular arc tooth profile medium hard tooth surface reducer according to the present invention;

[0022] Figure 6 This is a bottom view of the output component of a metallurgical grinding mill double circular arc tooth profile medium hard tooth surface reducer according to the present invention.

[0023] Figure 7 This is a front sectional view of the output component of a metallurgical grinding mill double circular arc tooth profile medium hard tooth surface reducer according to the present invention;

[0024] Figure 8 This invention relates to a double-circular-arc tooth profile medium-hard tooth surface reducer for metallurgical grinding mills. Figure 7 A magnified view of the details at point A in the middle.

[0025] In the picture:

[0026] 1. Reducer; 3. Speed ​​detection device; 11. Output assembly; 12. Top cover; 13. Housing; 14. Base; 15. Oil seal; 16. Fixing bolt; 17. Input shaft; 18. Gear four; 19. Gear three; 20. Gear two; 21. Gear one; 31. Detector; 32. Sensing slot; 33. Sensing coil; 34. Sensing ring; 35. Display screen; 36. Main body; 37. Mounting bolt; 111. Bearing sleeve; 112. Fixing plate; 113. Connecting bolt; 114. Output shaft; 115. Oil cylinder; 116. Rubber ring; 117. Sponge body; 118. Spring component; 119. Fixing outer ring; 120. Conveying pipe; 121. Adapter pipe; 122. Moving ball; 123. Through hole; 124. Rotating motor; 125. Oil inlet pipe; 126. Oil hole. 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 a part of the embodiments of the present invention, and not all of them. 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] Reference Figure 1-8The image shows a double-arc tooth profile medium-hard tooth surface reducer for a metallurgical grinding mill, comprising a reducer device 1 and a speed detection device 3. The bottom end of the reducer device 1 is fixedly connected to the bottom of the speed detection device 3. The reducer device 1 includes a top cover 12, a housing 13, a base 14, an input shaft 17, a fourth gear 18, a third gear 19, and a first gear 21. One end of the fourth gear 18 is rotatably mounted to the inner side of the housing 13, and the other end of the fourth gear 18 is provided with an output component 11. One end of the output component 11 is fixedly mounted to one end of the housing 13. The output component 11 includes a bearing sleeve 111, a fixed disk 112, an output shaft 114, an oil cylinder 115, a rubber ring 116, a fixed outer ring 119, and a conveying pipe 1. 20. The adapter pipe 121 and the oil inlet pipe 125 are fixedly connected to the inner side of the fixed plate 112 on one side of the fixed outer ring 119, and multiple spring elements 118 are arranged in a ring array on the other side of the fixed outer ring 119. One end of the spring element 118 is fixedly connected to one side of the rubber ring 116. A sponge 117 is provided on the top of the rubber ring 116. An oil hole 126 is opened through the top of one end of the fixed outer ring 119. The outer side of the output shaft 114 is in contact with the inner side of the rubber ring 116. When the output shaft 114 rotates, the rubber ring 116 and the spring element 118 can reduce the vibration of the output shaft 114 during rotation, which can alleviate the vibration generated by the reducer, thereby reducing vibration. The reducer will not generate significant noise during operation. The bottom of the oil inlet pipe 125 is fixedly connected to the outside of the oil hole 126, and the top of the oil inlet pipe 125 is fixedly connected to the bottom of the adapter pipe 121. The bottom of the delivery pipe 120 is fixedly connected to the top of the adapter pipe 121, and the top of the delivery pipe 120 is fixedly connected to the bottom of the oil cylinder 115. A movable ball 122 is provided inside the adapter pipe 121. One end of the movable ball 122 has a through hole 123. One end of the movable ball 122 is rotatably connected to the inner wall of the adapter pipe 121, and a rotary motor 124 is provided at the other end of the movable ball 122. One end of the output shaft 114 is fixedly installed to one end of the gear 18. The rotary motor 124... 4 can drive the movable ball 122 to rotate slowly inside the adapter tube 121. The lubricating oil in the oil cylinder 115 reaches the adapter tube 121 through the delivery pipe 120. As the movable ball 122 rotates, a small amount of lubricating oil can flow down through the through hole 123 into the oil inlet pipe 125. The bottom of the oil inlet pipe 125 is connected to the oil hole 126. The lubricating oil in the oil inlet pipe 125 drips onto the surface of the sponge 117 at the bottom through the oil hole 126, thereby immersing the sponge 117 in lubricating oil. The inner side of the sponge 117 is in contact with the outer side of the output shaft 114. The lubricating oil in the sponge 117 is continuously coated on the surface of the output shaft 114, thereby playing a role in maintaining and lubricating the output shaft 114.

[0029] like Figure 5-8As shown, the top of the oil cylinder 115 is fixedly connected to the outer side of the fixed plate 112, and one side of the fixed plate 112 is fixedly connected to one end of the bearing sleeve 111. Four connecting bolts 113 are arranged in a ring array on the outer side of the fixed plate 112. The fixed plate 112 is fixed to the outer side of the housing 13 by the connecting bolts 113. The bearing sleeve 111 can reduce the friction of the output shaft 114 during rotation.

[0030] like Figure 3-6 As shown, the fixed disk 112 is fixedly installed to the outside of the housing 13 by connecting bolts 113. The speed detection device 3 includes a detector 31, a sensing ring 34, and a main body 36. The inner side of the detector 31 is fixedly connected to one side of the sensing ring 34. One end of the detector 31 has a plurality of sensing slots 32 arranged in a ring array, and one end of the detector 31 is provided with a sensing coil 33. The top of the main body 36 is welded and fixed to the bottom of the detector 31, and two mounting bolts 37 are symmetrically arranged at the bottom of the main body 36. The main body 36 is fixedly connected to the top end of the base 14 by the mounting bolts 37. The outer side of the main body 36 is provided with a display. The display screen 35 is fixedly installed at the bottom of the outer casing 13 and the top of the base 14. The top of the outer casing 13 is threaded with a fixing bolt 16. The bottom of the main body 36 of the speed detection device 3 is fixedly connected to the base 14 by mounting bolts 37. The sensing ring 34 is connected to the outer side of one end of the output shaft 114. The sensing groove 32 and the sensing ring 33 can sense the speed of the output shaft 114. Then, the speed information is transmitted to the display screen 35 of the main body 36 for display through the detector 31. The display screen 35 can display the real-time speed data of the output shaft 114, so that the staff can clearly understand the rotation speed of the output shaft 114.

[0031] like Figure 1-3 As shown, an oil seal 15 is provided on the top of the top cover 12. One end of the gear three 19 is fixedly connected to the gear two 20. One end of the gear one 21 is rotatably installed on the inner side of the housing 13, and the other end of the gear one 21 is fixedly connected to one end of the input shaft 17. Opening the oil seal 15 facilitates lubrication of the multiple gears inside the housing 13, thereby improving the performance of the reducer. When the reducer is in use, the input end that needs to be reduced is connected to the input shaft 17, and then the connecting end is connected to the output shaft 114. The input end drives the input shaft 17 to rotate.

[0032] like Figure 1-3As shown, the outer side of gear 1 21 meshes with the outer side of gear 3 19, the outer side of gear 2 20 meshes with the outer side of gear 4 18, one end of gear 3 19 is rotatably connected to the inner side of housing 13, one end of gear 2 20 is rotatably connected to the inner side of housing 13, the input end drives the input shaft 17 to rotate, the input shaft 17 drives gear 1 21 inside housing 13 to rotate, gear 1 21 drives gear 2 20 and gear 3 19 to rotate, gear 3 19 drives gear 4 18 and output shaft 114 to rotate, thereby achieving the effect of reducing speed and increasing torque.

[0033] In this invention, when the reducer is in use, the input end that needs to be reduced in speed is connected to the input shaft 17, and then the connecting end is connected to the output shaft 114. The input end drives the input shaft 17 to rotate, the input shaft 17 drives the gear 1 21 inside the housing 13 to rotate, the gear 1 21 drives the gear 2 20 and the gear 3 19 to rotate, and the gear 3 19 drives the gear 4 18 and the output shaft 114 to rotate, thereby achieving the effect of reducing the speed and increasing the torque.

[0034] In actual use, when the staff needs to know the rotational speed information of the output shaft 114 and the output end, the bottom of the main body 36 of the speed detection device 3 is fixedly connected to the base 14 by the mounting bolts 37, and the sensing ring 34 is connected to the outer side of one end of the output shaft 114. The sensing groove 32 and the sensing ring 33 can sense the rotational speed of the output shaft 114, and then the speed information is transmitted to the display screen 35 of the main body 36 for display through the detector 31. The display screen 35 can display the real-time rotational speed data of the output shaft 114, which makes it convenient for the staff to clearly understand the rotational speed of the output shaft 114, and to make corresponding adjustments to the input end according to the rotational speed data, so as to achieve the required deceleration effect, effectively improve work efficiency, save time and effort, and benefit practical use.

[0035] Meanwhile, the output assembly 11 is improved. The outer side of the output shaft 114 fits against the inner wall of the rubber ring 116 and the bearing sleeve 111. The oil cylinder 115 is filled with lubricating oil. During actual use, when the rotating motor 124 is turned on and the output shaft 114 rotates, the rubber ring 116 and the spring 118 can reduce the vibration of the output shaft 114, avoid generating a lot of noise when the output shaft 114 rotates, and improve the performance of the reducer. The rotating motor 124 can drive the movable ball 122 to rotate slowly in the adapter tube 121. The lubricating oil in the oil cylinder 115 reaches the adapter tube 121 through the delivery pipe 120. With the rotation of the movable ball 122, a small amount of lubricating oil can be passed through. The lubricating oil flows downward through the through hole 123 into the oil inlet pipe 125. The bottom of the oil inlet pipe 125 is connected to the oil hole 126. The lubricating oil in the oil inlet pipe 125 drips through the oil hole 126 onto the surface of the sponge 117 at the bottom, thus immersing the sponge 117 in lubricating oil. The inner side of the sponge 117 is in contact with the outer side of the output shaft 114. The lubricating oil in the sponge 117 is continuously coated on the surface of the output shaft 114, which can play a role in maintaining and lubricating the output shaft 114. At the same time, it can reduce the friction of the output shaft 114 during rotation, reduce the wear of the output shaft 114, improve the overall service life of the reducer, increase the durability of the device, and benefit practical use.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A double-circular-arc tooth profile medium-hard tooth surface reducer for metallurgical grinding mills, characterized in that, The device includes a speed reducer and a speed detection device. The bottom of the speed reducer is fixedly connected to the bottom of the speed detection device. The speed reducer includes a top cover, a housing, a base, an input shaft, a fourth gear, a third gear, and a first gear. One end of the fourth gear is rotatably mounted to the inner side of the housing, and the other end of the fourth gear is provided with an output component. One end of the output component is fixedly mounted to one end of the housing. The output component includes a bearing sleeve, a fixed disc, an output shaft, an oil cylinder, a rubber ring, a fixed outer ring, a delivery pipe, a transfer pipe, and an oil inlet pipe. One side of the fixed outer ring is fixedly connected to the inner side of the fixed disc, and the other side of the fixed outer ring is arranged in a circular array of multiple spring elements. One end of each spring element is connected to the rubber... One side of the ring is fixedly connected, and a sponge is provided on the top of the rubber ring. An oil hole is opened through the top of one end of the fixed outer ring. The outer side of the output shaft is in contact with the inner side of the rubber ring. The bottom of the oil inlet pipe is fixedly connected to the outer side of the oil hole, and the top of the oil inlet pipe is fixedly connected to the bottom of the adapter pipe. The bottom of the delivery pipe is fixedly connected to the top of the adapter pipe, and the top of the delivery pipe is fixedly connected to the bottom of the oil cylinder. A movable ball is provided inside the adapter pipe. A through hole is opened through one end of the movable ball. One end of the movable ball is rotatably connected to the inner wall of the adapter pipe, and a rotating motor is provided at the other end of the movable ball. One end of the output shaft is fixedly installed with one end of the gear four.

2. The metallurgical grinding mill double circular arc tooth profile medium hard tooth surface reducer according to claim 1, characterized in that: The top of the oil cylinder is fixedly connected to the outside of the fixed plate, one side of the fixed plate is fixedly connected to one end of the bearing sleeve, and four connecting bolts are arranged in a circular array on the outside of the fixed plate.

3. The metallurgical grinding mill double circular arc tooth profile medium hard tooth surface reducer according to claim 2, characterized in that: The fixed plate is fixedly installed to the outside of the housing by connecting bolts, and the speed detection device includes a detector, a sensing ring and a main body.

4. The metallurgical grinding mill double circular arc tooth profile medium hard tooth surface reducer according to claim 3, characterized in that: The inner side of the detector is fixedly connected to one side of the sensing ring. One end of the detector has a ring array of multiple sensing slots, and one end of the detector is provided with a sensing coil.

5. A metallurgical grinding mill double-circular-arc tooth profile medium-hard tooth surface reducer according to claim 3, characterized in that: The top of the main body is welded and fixed to the bottom of the detector, and two mounting bolts are symmetrically arranged at the bottom of the main body. The main body is fixedly connected to the top end of the base by the mounting bolts.

6. The metallurgical grinding mill double circular arc tooth profile medium hard tooth surface reducer according to claim 3, characterized in that: The main body is provided with a display screen on the outside, the bottom of the outer shell is fixedly installed with the top of the base, and the top of the outer shell is threadedly connected with fixing bolts.

7. A metallurgical grinding mill double-circular-arc tooth profile medium-hard tooth surface reducer according to claim 1, characterized in that: An oil seal is provided on the top of the top cover. One end of the gear three is fixedly connected to the gear two. One end of the gear one is rotatably installed on the inner side of the outer casing, and the other end of the gear one is fixedly connected to one end of the input shaft.

8. A metallurgical grinding mill double-circular-arc tooth profile medium-hard tooth surface reducer according to claim 7, characterized in that: The outer side of gear one meshes with the outer side of gear three, the outer side of gear two meshes with the outer side of gear four, one end of gear three is rotatably connected to the inner side of the outer casing, and one end of gear two is rotatably connected to the inner side of the outer casing.

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