Large rotary kiln gear laser cladding pretreatment equipment
Through the coordination of the adjustment components and the booster components and the pressure reducing components, the problem of inhomogeneity and insufficient accuracy of large gear grinding processing is solved, and the overall grinding of the teeth is achieved, which improves the grinding effect and the service life of the gear.
Patent Information
- Application Number
- CN202510733758.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-04
- Publication Date
- 2025-07-29
AI Technical Summary
Existing grinding equipment has problems of unevenness and insufficient accuracy in grinding treatment of large gears, especially the poor grinding effect on the top and roots of the tooth block, which affects the laser cladding repair effect and the service life of the gear.
The adjustment components and the booster components are used to cooperate with the pressure reduction components to automatically adjust the grinding force of the grinding wheel roller, and adaptively adjust the positive contact pressure between the grinding wheel roller and the surface of the tooth block to ensure the comprehensive grinding of the tooth surface, tooth top and tooth roots on both sides of the tooth block, and cool and clean it through the liquid supply component to improve the grinding effect.
It achieves comprehensive and even grinding of large gear blocks, improves grinding accuracy and service life of the equipment, and enhances the effect of subsequent laser cladding repair.
Smart Images
Figure CN120384285A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of large rotary kiln gear pretreatment, and particularly to a laser cladding pretreatment device for large rotary kiln gears. Background Art
[0002] As one of the important transmission components of the rotary kiln operation, after long-term use, large gears are prone to problems such as wear and fatigue pitting due to factors such as heavy load and dust. Therefore, to ensure the stability of the continuous operation of the rotary kiln, it is necessary to regularly perform laser cladding repair treatment on the overall tooth blocks of the large gears. Before that, to further improve the repair effect on the tooth blocks, it is usually necessary to perform grinding pretreatment on the overall tooth blocks of the large gears;
[0003] When the existing grinding equipment grinds the tooth blocks on the large gears, it usually only grinds the tooth surfaces on both sides of the tooth blocks. However, due to long-term wear and oxide scale problems of the tooth tips of the tooth blocks and the tooth roots between the tooth blocks, their service strength will gradually weaken. If the tooth tips and tooth surfaces on the tooth blocks are not ground for a long time, it will not only reduce the subsequent repair effect of laser cladding on the large gears as a whole, but also easily reduce the service life of the large gears. At the same time, when the existing grinding equipment grinds the tooth blocks on the large gears, it usually grinds the tooth blocks with a constant grinding force according to the balanced roughness of the overall tooth blocks. However, if there are large differences in roughness on the overall tooth blocks, it is also easy to reduce the grinding effect of the equipment on the large gears. For this reason, we propose a laser cladding pretreatment device for large rotary kiln gears to solve the above problems. Summary of the Invention
[0004] The purpose of the present invention is to solve the problems raised in the background art, and to propose a laser cladding pretreatment device for large rotary kiln gears.
[0005] To achieve the above purpose, the present invention adopts the following technical solutions:
[0006] A laser cladding pretreatment device for large rotary kiln gears, including a rotary kiln main body, an equipment main body, and a grinding wheel roller. A large gear is installed on the rotary kiln main body. An adjustment component is provided on the equipment main body. A pressurization component and a decompression component are provided on the grinding wheel roller, and the two cooperate to automatically adjust the grinding force of the grinding wheel roller;
[0007] The adjustment component includes a recovery box fixedly installed on the equipment main body. A linear and uniformly distributed first spring telescopic rod is installed in the recovery box through a lifting component. A liquid storage plate is fixedly installed together between the first spring telescopic rods. Two support blocks are fixedly installed on the liquid storage plate, and the grinding wheel roller is rotatably installed between the two support blocks;
[0008] The pressure boosting assembly includes two fixed plates rotatably mounted on the inner wall of the grinding wheel roller. Rotating shafts are rotatably mounted on both fixed plates. One torsion spring is fixedly mounted between each rotating shaft and the corresponding fixed plate. A pressure boosting mechanism is mounted on one of the rotating shafts.
[0009] The pressure reducing assembly includes a fixed cylinder fixedly mounted on the other rotating shaft, and a pressure reducing mechanism is mounted on the fixed cylinder.
[0010] Compared with the existing technology, the advantages of the present invention are as follows:
[0011] 1: Before the pre-treatment of grinding large gears, the present invention can adaptively adjust the normal pressure of the contact surface between the grinding wheel roller and the tooth blocks on the large gear according to the balanced roughness of the tooth blocks on the large gear and the required grinding force through the adjustment assembly, that is, adaptively adjust the grinding force of the grinding wheel roller on the tooth blocks of the large gear. At the same time, when the large gear rotates under force, at this time, through the driving force of the rotation of multiple tooth blocks on the large gear and the elastic force of multiple spring telescopic rods themselves, the grinding wheel roller can always slide along the surface of the tooth blocks on the large gear, so as to achieve the comprehensive grinding treatment of both sides of the tooth surface, the tooth top and the tooth root of the tooth blocks, which helps to improve the overall grinding effect of the grinding wheel roller on the tooth blocks of the large gear, that is, helps to improve the grinding effect of the grinding wheel roller on the large gear.
[0012] 2: During the grinding process of the tooth blocks on the large gear by the grinding wheel roller, through the cooperation of the pressure boosting assembly and the pressure reducing assembly, the grinding force of the grinding wheel roller on the tooth blocks of the large gear can be adaptively increased or decreased according to the roughness of the tooth block surface on the large gear, which helps to improve the grinding accuracy of the grinding wheel roller on the large gear and further improve the grinding effect of the equipment on the large gear. Brief Description of the Drawings
[0013] Figure 1 It is a schematic structural diagram of a large rotary kiln gear laser cladding pre-treatment equipment proposed by the present invention;
[0014] Figure 2 It is Figure 1 a schematic structural diagram of the equipment main body and the large gear in
[0015] Figure 3 It is Figure 2 a schematic structural diagram of the equipment main body after rotating a certain angle in
[0016] Figure 4 It is Figure 3 a partial sectional view schematic diagram of the recycling box in
[0017] Figure 5 It is Figure 4 a schematic diagram of the internal component structure of the recycling box in
[0018] Figure 6 is Figure 3 the front view schematic diagram of the grinding wheel roller and the large gear in
[0019] Figure 7 is Figure 5 the structural schematic diagram after rotating a certain angle;
[0020] Figure 8 is Figure 7 the sectional view schematic diagram of the first spring telescopic rod in
[0021] Figure 9 is Figure 8 the front view schematic diagram of
[0022] Figure 10 is Figure 5 the sectional view schematic diagram of the grinding wheel roller and the liquid storage plate in
[0023] Figure 11 is Figure 10 the structural schematic diagram of the pressurizing component in
[0024] Figure 12 is Figure 11 the structural schematic diagram after removing the grinding wheel roller and the liquid storage plate in
[0025] Figure 13 is Figure 11 the structural schematic diagram of the connection component between the grinding wheel roller and the extrusion plate in
[0026] Figure 14 is Figure 10 the structural schematic diagram of the decompression component in
[0027] Figure 15 is Figure 14 the structural schematic diagram of the internal components of the grinding wheel roller;
[0028] Figure 16 is Figure 7 the sectional view schematic diagram of the grinding wheel roller after rotating a certain angle;
[0029] Figure 17 is Figure 15 the structural schematic diagram of the driving component in
[0030] Figure 18 is Figure 17 the structural schematic diagram of part A in
[0031] Figure 19 is Figure 10 the partial structural schematic diagram of the pressure regulating component in
[0032] In the figure: 1. Rotary kiln main body; 2. Equipment main body; 3. Recycling box; 4. Grinding wheel roller;
[0033] 5. Adjustment assembly; 51. Filter plate; 52. Electric telescopic rod; 53. Support plate; 54. Spring telescopic rod 1; 55. Liquid storage plate; 56. Support block;
[0034] 6. Liquid supply assembly; 61. Infusion tube; 62. Catheter; 63. Cylinder; 64. Liquid storage tank; 65. Liquid spray tube;
[0035] 7. Pressurizing assembly; 71. Fixed plate; 72. Rotating shaft; 73. Torsion spring 1; 74. Friction roller; 75. Micro motor 1; 76. Torsion spring 2; 77. Worm 1; 78. Threaded rod; 79. Support member; 710. Spring telescopic rod 2; 711. Extrusion plate;
[0036] 8. Decompression assembly; 81. Micromotor 2; 82. Conical block; 83. Limiting plate; 84. Driving member; 85. Elastic extrusion member; 86. Fixed cylinder; 87. Arc groove; 88. Annular slide; 89. Push plate; 810. Elastic connecting member; 811. Pushing member; 812. Worm 2;
[0037] 9. Large gears. DETAILED DESCRIPTION
[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, 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 efforts are within the scope of protection of the present invention.
[0039] Reference Figures 1 - 19 A large rotary kiln gear laser cladding pretreatment equipment includes a rotary kiln body 1, an equipment body 2, and a grinding wheel roller 4. A large gear 9 is installed on the rotary kiln body 1, an adjustment component 5 is provided on the equipment body 2, and a boost component 7 and a decompression component 8 are provided on the grinding wheel roller 4. The two are used to automatically adjust the grinding force of the grinding wheel roller 4.
[0040] When the main body 1 of the rotary kiln needs to operate, it is usually driven by an existing driving device to rotate the large gear 9, and the rotation of the large gear 9 drives the main body 1 of the rotary kiln to rotate. After long-term use, the large gear 9 is vulnerable to the influence of heavy loads (torque of dozens of ton-meters), dust (including abrasive particles such as SiO2), and alternating loads. Problems such as abrasive wear and fatigue pitting occur on the tooth blocks of the large gear 9, resulting in the destruction of the accuracy of the tooth surface of the large gear 9 and a decrease in the transmission efficiency, that is, the stability during the operation of the main body 1 of the rotary kiln is reduced. Therefore, at present, to ensure the stability during the operation of the main body 1 of the rotary kiln, it is necessary to regularly perform laser cladding repair treatment on the overall tooth blocks of the large gear 9. Before that, to further improve the repair effect of its tooth blocks, it is usually necessary to perform grinding treatment on the overall tooth blocks of the large gear 9.
[0041] In addition, the large gear 9 currently installed on the main body 1 of the rotary kiln has a diameter of up to 3 - 5 meters and weighs about dozens of tons. It is usually rigidly connected to the large gear ring on the main body 1 of the rotary kiln through bolts. To disassemble it, it is necessary to synchronously disassemble the support devices (such as idler wheels and retaining wheels) and the transmission system of the main body 1 of the rotary kiln. In addition, lifting equipment is required for auxiliary disassembly, and the disassembly is relatively cumbersome. Therefore, when grinding treatment is required on the surface of the large gear 9, the large gear 9 usually adopts a non-disassembly method, and through this device that is easy to move, it can help improve the convenience of grinding the tooth blocks on the large gear 9.
[0042] Refer to Figures 1 - 6 , the adjusting assembly 5 includes a recovery box 3 fixedly installed on the equipment main body 2. A linear and evenly distributed first spring telescopic rod 54 is installed in the recovery box 3 through a lifting member. A liquid storage plate 55 is fixedly installed among the first spring telescopic rods 54. Two support blocks 56 are fixedly installed on the liquid storage plate 55, and the grinding wheel roller 4 is rotatably installed between the two support blocks 56.
[0043] The lifting member includes a filter plate 51 fixedly installed on the inner wall of the recovery box 3. An electric telescopic rod 52 is fixedly installed on the filter plate 51. The upper end of the electric telescopic rod 52 is fixedly installed with a support plate 53, and the lower ends of the first spring telescopic rods 54 are fixedly connected to the support plate 53. Two support columns are fixedly installed on the filter plate 51, and the support plate 53 is slidably installed between the two support columns (as Figure 5 shown in the direction. When the support plate 53 drives the multiple first spring telescopic rods 54 and the grinding wheel roller 4 on it to move up and down under force, through the two support columns, it can help improve the stability of the support plate 53 driving the multiple first spring telescopic rods 54 and the grinding wheel roller 4 to move up and down).
[0044] Such as Figure 6In the shown direction, the two sides of the tooth blocks on the large gear 9 are usually called tooth surfaces, the lower end of the tooth block is the tooth tip, and the connecting part between the tooth blocks is called the tooth root. When the large gear 9 rotates under force, torque is usually transmitted through the contact between the tooth surfaces of the tooth blocks. Therefore, existing grinding equipment usually only grinds the tooth surfaces on both sides of the tooth blocks on the large gear 9. However, during long-term use, the tooth roots and tooth tips of the tooth blocks are also prone to problems such as wear, oxide scale, and cracks. If they are not regularly ground, it will affect the bonding strength between the subsequent laser cladding layer and the tooth blocks of the large gear 9, resulting in problems such as peeling and cracking of the cladding layer on the tooth blocks of the large gear 9, that is, reducing the laser cladding effect of the overall tooth blocks on the large gear 9. In addition, the tooth root between the tooth blocks is a key part where the large gear 9 is stressed. If there are defects, stress concentration is likely to occur, increasing the fatigue strength of the tooth blocks of the large gear 9. In severe cases, when the tooth blocks transmit torque under force, fractures may occur at the tooth roots of the tooth blocks. At the same time, the tooth tips on the tooth blocks are also likely to reduce the overall strength of the tooth blocks due to factors such as burrs and knocks. These defects will cause the tooth blocks on the large gear 9 to experience early failures (such as tooth tip cracking) during subsequent continuous use, and will also reduce the service life of the large gear 9.
[0045] When the equipment is needed to grind the tooth blocks on the large gear 9, first push the equipment main body 2 to directly below the large gear 9 (as Figure 1 shown in the direction). After the equipment main body 2 moves to a suitable position and is fixed stably, start the electric telescopic rod 52. At this time, the operation of the electric telescopic rod 52 can drive the support plate 53 to drive a plurality of first spring telescopic rods 54 and the grinding wheel roller 4 to move upward until the grinding wheel roller 4 fits the tooth root surface at the lower end of the large gear 9 (as Figure 6 shown in the direction. When the grinding wheel roller 4 is set at the initial position, it is located directly below the tooth root at the lower end of the large gear 9).
[0046] After the grinding wheel roller 4 fits the tooth root at the lower end of the large gear 9, at this time, according to the surface roughness of the tooth blocks on the large gear 9 and the required grinding degree, drive the electric telescopic rod 52 to continue running, that is, drive the support plate 53 to continue moving upward. At this time, the upward movement of the support plate 53 compresses the plurality of first spring telescopic rods 54, and the generated reaction force can adaptively increase the contact normal pressure between the grinding wheel roller 4 and the tooth root of the large gear 9, that is, adaptively increase the grinding force of the grinding wheel roller 4 on the tooth blocks of the large gear 9 in the future (for example, when rough grinding the tooth blocks on the large gear 9 or when the overall roughness of the tooth blocks on the large gear 9 to be ground is relatively high, it is necessary to increase the contact normal pressure between the grinding wheel roller 4 and the tooth blocks on the large gear 9, that is, the grinding force. If fine grinding of the tooth blocks on the large gear 9 is required, or when the overall roughness of the tooth blocks on the large gear 9 to be ground is relatively low, it is necessary to appropriately reduce the contact normal pressure between the grinding wheel roller 4 and the tooth blocks, that is, reduce its grinding force).
[0047] According to Hooke's Law (spring elastic force = spring stiffness coefficient × compression amount), when the support plate 53 moves upward to compress the plurality of first spring telescopic rods 54, the compression amount of the plurality of first spring telescopic rods 54 will increase. At this time, the first spring telescopic rods 54 will generate a downward elastic force on the grinding wheel roller 4, and this elastic force will directly act on the contact surface between the grinding wheel roller 4 and the tooth blocks on the large gear 9, increasing the normal pressure on the contact surface between the grinding wheel roller 4 and the tooth blocks. And the grinding force is essentially the frictional force between the grinding wheel roller 4 and the surface of the tooth blocks, and the magnitude of the frictional force is proportional to the normal pressure between the two (formula: grinding force = friction coefficient × normal pressure). Therefore, when the normal pressure between the grinding wheel roller 4 and the surface of the tooth root increases, the subsequent grinding force of the grinding wheel roller 4 on the tooth blocks on the large gear 9 will also increase accordingly. Conversely, when the contact normal pressure between the grinding wheel roller 4 and the tooth blocks on the large gear 9 decreases, the grinding force on the tooth blocks on the large gear 9 will also decrease.
[0048] To further enhance the grinding effect of the grinding wheel roller 4 on the tooth blocks on the large gear 9, a transmission device needs to be added between the grinding wheel roller 4 and the liquid storage plate 55. When the grinding force of the grinding wheel roller 4 on the tooth blocks is adaptively adjusted according to the required grinding degree of the tooth blocks on the large gear 9, the existing driving device and the transmission device are started. The operation of the driving device can drive the large gear 9 to rotate clockwise (as Figure 6 shown in the direction), and the operation of the transmission device can drive the grinding wheel roller 4 to make a fast clockwise turnover around its own axis. By this means, it can ensure the grinding effect of the grinding wheel roller 4 on the tooth blocks on the large gear 9 during the rotation of the large gear 9.
[0049] At the same time, during the process of the large gear 9 being forced to make a clockwise turnover, the positions of the multiple tooth blocks on it will constantly change. After the grinding wheel roller 4 finishes grinding the corresponding tooth root part, the left tooth surface of the right tooth block comes into contact with the surface of the grinding wheel roller 4 (as Figure 6The left tooth surface of the right tooth block will produce a downward squeezing force on the grinding wheel roller 4 (because the large gear 9 can reach tens of tons·meters when it is rotated under force, so the upper tooth block will produce a large driving force on the grinding wheel roller 4, which can effectively ensure the effect of the grinding wheel roller 4 being pressed downward), so that the grinding wheel roller 4 compresses the multiple spring telescopic rods 54 downward through the liquid storage plate 55, and the tooth top of the right tooth block is forced to rotate and contact with the grinding wheel roller 4. After the grinding wheel roller 4 completes the grinding process on it, the elastic force of the multiple spring telescopic rods 54 will drive the grinding wheel roller 4 to rotate downward. The wheel roller 4 moves up and contacts the right tooth surface of the right gear. At this time, the grinding wheel roller 4 can continuously grind the right tooth surface of the right tooth block through the continuous rotation of the right tooth block and the elastic force of the spring telescopic rod 54 itself. Then, by repeating the above operation, the grinding wheel roller 4 can continuously roll along the tooth roots, tooth surfaces on both sides and tooth tops on the tooth block of the large gear 9, and complete the grinding process in the process. In this way, the grinding wheel roller 4 can achieve comprehensive grinding of the entire tooth block (including tooth roots, tooth surfaces and tooth tops) on the large gear 9, which helps to improve the uniformity and grinding effect of the overall grinding of the tooth block on the large gear 9 by the grinding wheel roller 4, and can effectively improve the subsequent laser cladding treatment effect of the overall tooth block on the large gear 9.
[0050] Reference Figures 3 - 9 The recovery box 3 is provided with a liquid supply assembly 6, which includes a liquid supply box fixedly mounted on the device body 2, a liquid infusion pipe 61 fixedly connected to the liquid supply box, a catheter 62 fixedly mounted on the support plate 53, and the catheter 62 is fixedly connected to the liquid infusion pipe 61, a liquid storage tank 64 is provided on the liquid storage plate 55, and a plurality of liquid spray pipes 65 are fixedly connected to the liquid storage plate 55;
[0051] A cylinder 63 is fixedly installed on the inner wall of the fixed end of the spring telescopic rod 54, and the cylinder 63 is fixedly connected to the conduit 62. A circular hole is opened at the telescopic end of the spring telescopic rod 54, and the circular hole is connected to the liquid storage tank 64.
[0052] When the grinding wheel roller 4 is forced to rotate at high speed to grind the tooth blocks on the large gear 9, a large amount of heat will be generated between the grinding wheel roller 4 and the grinding surface of the large gear 9 due to intense friction, resulting in a sharp increase in local temperature (up to hundreds of degrees Celsius). The high temperature can easily cause the metal on the surface of the tooth blocks on the large gear 9 to anneal and soften, affecting its material hardness and wear resistance, that is, reducing the service life of the tooth blocks on the large gear 9. At the same time, the high temperature can also easily aggravate the wear of the grinding wheel abrasive grains on the grinding wheel roller 4, shortening the continuous grinding force and service life of the grinding wheel roller 4. Therefore, when the grinding wheel roller 4 is grinding the tooth blocks on the large gear 9, both of them need to be cooled.
[0053] When the grinding wheel roller 4 starts to grind the tooth blocks on the large gear 9, start the existing liquid pumping equipment. The operation of the liquid pumping equipment can transfer the grinding fluid buffered inside the liquid supply tank to the infusion pipe 61, and make the grinding fluid flow into the liquid storage tank 64 along the infusion pipe 61, the conduit 62, the multiple cylinders 63, and the round holes, and finally be sprayed out by the multiple liquid spraying pipes 65 to perform liquid spraying cleaning and liquid spraying cooling on the grinding surface and the to-be-ground surface of the teeth on the large gear 9. As shown in combination with Figure 6 and Figure 9 In the shown direction, when the large gear 9 is forced to rotate clockwise, the impact force generated by the liquid sprayed out by the multiple liquid spraying pipes 65 on the right side of the grinding wheel roller 4 can clean the dust and other impurities adhering to the surface of the to-be-ground tooth blocks on the large gear 9, which can help improve the grinding effect of the grinding wheel roller 4 on the tooth blocks at this position subsequently. At the same time, the sprayed liquid also has a certain lubricating effect, which can help reduce the frictional resistance when the grinding wheel roller 4 grinds this area subsequently, reduce its power consumption, and at the same time improve the surface finish of the tooth blocks. At the same time, the liquid sprayed out by the multiple liquid spraying pipes 65 arranged on the left side of the grinding wheel roller 4 can not only timely cool the surface of the tooth blocks after grinding, but also clean the debris and other impurities generated during grinding on it through the impact force generated by the liquid spraying. This can not only help improve the grinding effect of the equipment on the large gear 9, but also effectively improve the cleanliness of the surface of the large gear 9 after grinding.
[0054] At the same time, the grinding fluid flowing into the liquid storage tank 64 through the infusion pipe 61, the conduit 62, the multiple cylinders 63, and the multiple round holes can also cool the lower end of the high-speed rotating grinding wheel roller 4 (as shown in the direction of Figure 9 ), improve the stability of the surface temperature of the grinding wheel roller 4 when the grinding wheel roller 4 continuously grinds the tooth blocks on the large gear 9, that is, help improve the grinding effect of the grinding wheel roller 4 continuously rotating on the tooth blocks on the large gear 9 and its service life. At the same time, to ensure that the grinding fluid entering the infusion pipe 61 can smoothly flow into the liquid storage tank 64 and be sprayed out through the multiple liquid spraying pipes 65, the operating power of the existing liquid pumping equipment can be increased adaptively.
[0055] In addition, a section of the pipe diameter between the infusion pipe 61 and the conduit 62 is made of elastic material. The purpose is that when the support plate 53 is forced to drive the conduit 62 to move up and down, the conduit 62 can move by stretching or compressing this section of the pipe diameter of the infusion pipe 61, and ensure the smoothness of liquid transportation when this section of the pipe diameter of the infusion pipe 61 is compressed or stretched.
[0056] Part of the liquid ejected by multiple liquid spray pipes 65 at the same time will drip into the recycling box 3 under the action of gravity. At this time, the filter plate 51 can process the grinding fluid in this part, and the processed grinding fluid will gather at the bottom of the recycling box 3 and finally flow into the liquid supply box, thereby realizing the recycling of the grinding fluid and helping to improve the utilization efficiency of the grinding fluid.
[0057] Refer to Figure 6 、 Figures 10 - 13 , the pressurizing assembly 7 includes two fixed plates 71 rotatably installed on the inner wall of the grinding wheel roller 4. Two rotating shafts 72 are rotatably installed on both fixed plates 71. A torsion spring one 73 is fixedly installed between the two rotating shafts 72 and the corresponding fixed plates 71. A pressurizing mechanism is installed on one side rotating shaft 72 (here, one side refers to Figure 10 , Figure 10 the position where the pressing plate 711 is located in the attached drawing as one side).
[0058] The pressurizing mechanism includes a friction roller 74 fixedly installed on one side rotating shaft 72. A worm one 77 is fixedly installed on one side rotating shaft 72. An adjustable resistance component is installed on one side support block 56 (here, one side refers to Figure 10 , Figure 10 the position where the liquid storage plate 55 is located in the attached drawing as one side).
[0059] The adjustable resistance component includes a micro motor one 75 fixedly installed on the side wall of one side support block 56. A rotating shaft is fixedly installed on the driving end of the micro motor one 75. A disc is fixedly installed on the rotating shaft (drawn but not marked in the figure, visible from Figure 12 the figure). A torsion spring two 76 is fixedly installed between the disc and the corresponding rotating shaft 72.
[0060] During the production and processing of large gears 9 (uneven cooling during quenching or tempering, resulting in local hardness differences on the tooth surface) and subsequent use (presence of oxide scale, folding, pores or uneven grain structure, etc.), it is easy to cause uneven roughness of the overall tooth blocks of the large gear 9. When using existing grinding equipment with a constant grinding force according to the overall roughness of the large gear 9 to grind its tooth blocks, it is easy to over-grind in areas with relatively low local roughness of the tooth blocks (such as due to relatively low local material hardness, for example, uneven heat treatment, and the material is easily over-removed during grinding), while in areas with relatively high local roughness of the tooth blocks, there is a situation of insufficient grinding force (such as due to local hard particles in the material or relatively high local hardness after heat treatment, etc.). Therefore, during the grinding process of the overall tooth blocks on the large gear 9, due to the uneven roughness of the overall tooth blocks, it is easy to reduce the uniformity and precision of the grinding of the overall tooth blocks of the large gear 9 by the equipment.
[0061] When it is necessary to grind the surface of the tooth blocks on the large gear 9 and, through the above-mentioned adjusting assembly 5, after adjusting the initial grinding force of the grinding wheel roller 4 according to the balanced roughness of the overall tooth block surface, first, according to the balanced roughness of the overall tooth blocks on the large gear 9, that is, the rolling grinding resistance of the tooth blocks as a whole to the grinding wheel roller 4, start the first micro-motor 75. At this time, when the first micro-motor 75 operates and drives the rotating shaft to rotate, the second torsion spring 76 can be adaptively rotated and pre-tightened according to the balanced roughness of the overall tooth blocks on the large gear 9. After the second torsion spring 76 is rotated and pre-tightened, elastic potential energy will be stored in advance inside it. This elastic potential energy will exert an initial restoring moment on the corresponding rotating shaft 72, and this moment will be opposite to the rotating direction of the rotating shaft 72, that is, adaptively increase the resistance moment of the initial rotation of the corresponding rotating shaft 72.
[0062] When the grinding wheel roller 4 is forced to rotate clockwise to grind the surface of the tooth blocks on the large gear 9 (as shown in the direction in Figure 11 ), the grinding resistance of the surface of the grinding tooth block to the grinding wheel roller 4 will be transmitted to the corresponding rotating shaft 72 through the friction roller 74. And because there is an initial rotation resistance moment on this rotating shaft 72 at this time, that is, a relatively large driving rotation force is required for this rotating shaft 72, so when the grinding wheel roller 4 is forced to rotate at this time, it will not drive this rotating shaft 72 to rotate together through the friction roller 74.
[0063] Refer to Figure 10 、 Figures 14 - 19 As shown in Figure 10 、 Figure 10 , the pressure reducing assembly 8 includes a fixed cylinder 86 fixedly installed on the other rotating shaft 72 (the other side here can be referred to
[0064] to the position where the pressure reducing assembly 8 is located on the other side in the attached drawings of Figure 10 、 Figure 10 ), and a pressure reducing mechanism is installed on the fixed cylinder 86. Figure 14 As can be seen from
[0065] The pressure reducing mechanism includes a second micro-motor 81 fixedly installed on the other support block 56 (the other side here can be referred to Figure 16As can be seen, each driving member 84 is composed of a sphere and a rod body. The rod body is slidably installed on the corresponding sliding port, and the rod body is fixedly connected to the corresponding elastic pressing member 85. Elastic pressing members 85 are fixedly installed on each driving member 84. A driving component is installed between the fixed cylinder 86 and the grinding wheel roller 4. A pressure regulating component is jointly installed between the two support blocks 56 and the first worm 77.
[0066] The driving component includes an annular chute 88 opened on the inner wall of the grinding wheel roller 4. Annularly and evenly distributed pushing plates 89 are slidably installed on the annular chute 88;
[0067] Arc-shaped grooves 87 are opened on the limiting disc 83 in an annular and evenly distributed manner. Elastic connecting members 810 are slidably installed on each arc-shaped groove 87. Pushing members 811 are fixedly installed on each elastic connecting member 810, and each pushing member 811 is matched with the corresponding pushing plate 89.
[0068] When the grinding wheel roller 4 grinds the tooth blocks on the large gear 9 and adaptively increases the rotational resistance of the left shaft 72 according to the overall roughness of the tooth blocks, that is, the grinding resistance of the tooth blocks on the whole to the grinding wheel roller 4, the right micro motor two 81 is started (as Figure 10 shown in the direction). At this time, the operation of the right micro motor two 81 will drive the tapered block 82 to move to the left through the cooperation of the lead screw and the moving member (as Figure 15 shown in the direction). When the tapered block 82 moves to the left, the extrusion force applied to the plurality of driving members 84 will cause the plurality of driving members 84 to move away from each other, adaptively compressing the elastic pressing members 85 between them and the grinding wheel roller 4. In this way, the contact pressure, that is, the contact friction force, between the plurality of elastic pressing members 85 and the inner wall of the grinding wheel roller 4 can be adaptively increased, so that the friction force between the plurality of elastic pressing members 85 and the inner wall of the grinding wheel roller 4 matches the grinding resistance of the tooth blocks on the surface of the large gear 9 to the grinding wheel roller 4. That is, when the grinding wheel roller 4 starts to rotate to grind the tooth blocks on the large gear 9, the plurality of elastic pressing members 85 and the driving members 84 are driven to rotate together by the friction force between the inside of the grinding wheel roller 4 and the plurality of elastic pressing members 85.
[0069] When the grinding wheel roller 4 is forced to rotate, the surface of the tooth block on the large gear 9 is ground, and through the cooperation of multiple elastic pressing members 85, driving members 84, and sliding ports, the limiting disc 83 is driven to rotate together. At this time, due to the large frictional resistance between the multiple arc-shaped grooves 87 and the corresponding elastic connecting members 810, the limiting disc 83 will drive the multiple elastic connecting members 810 and the pushing members 811 to rotate together. And due to the initial state, the lower ends of the pushing members 811 are all in contact with the surface of the fixed cylinder 86, that is, the contact frictional force between them is small. Therefore, the rotation of the pushing members 811 at this time will not drive the fixed cylinder 86 to rotate together. (In addition, a large frictional force is provided between the annular sliding groove 88 and the multiple pushing plates 89. At this time, the turnover of the grinding wheel roller 4 can drive the multiple pushing plates 89 to rotate together through the frictional force between the annular sliding groove 88 and the multiple pushing plates 89).
[0070] Referring to Figures 10 - 19 , the pressure regulating component includes a second worm 812 fixedly installed on the fixed cylinder 86. Placing grooves are formed on both of the two support blocks 56, and threaded rods 78 are rotatably installed on both of the two placing grooves. Worms are fixedly installed on both of the two threaded rods 78, and the two worms are respectively engaged with the corresponding first worm 77 and second worm 812;
[0071] Support members 79 are threadedly installed on both of the two threaded rods 78, and two second spring telescopic rods 710 are fixedly installed on both of the two support members 79. Pressing plates 711 are fixedly installed between the corresponding two second spring telescopic rods 710.
[0072] When the grinding wheel roller 4 is forced to rotate to grind the tooth block on the large gear 9, when grinding to a region with a higher roughness, the frictional resistance generated by the tooth block on the grinding wheel roller 4 will increase accordingly. And when the rotational grinding resistance of the grinding wheel roller 4 increases, the frictional force between the inner wall of the grinding wheel roller 4 and the friction roller 74 will also increase. Therefore, at this time, the rotational displacement of the grinding wheel roller 4 will, due to the frictional force between it and the friction roller 74, drive the corresponding rotating shaft 72 to rotate together. And when the rotating shaft 72 drives the first worm 77 to rotate together (at this time, the rotating shaft 72 will drive the corresponding first torsion spring 73 to rotate together), through the cooperation of the first worm 77 with the corresponding worm and threaded rod 78, the corresponding support member 79 can be driven to move upward, compressing the corresponding two second spring telescopic rods 710 (such as Figure 12 and Figure 13in the shown direction), at this time, according to the above operating principle, when the two spring telescopic rods II 710 below the grinding wheel roller 4 are compressed upward, the generated reaction force will increase the normal pressure of the contact between the grinding wheel roller 4 and the tooth block surface of the large gear 9 through the corresponding pressing plate 711, that is, increase the grinding force of the grinding wheel roller 4 on the tooth block in this area of the large gear 9. In this way, it can be ensured that when the grinding wheel roller 4 grinds the area with a relatively high tooth block roughness, the grinding force of the grinding wheel roller 4 on this area is automatically increased, which helps to improve the accuracy of the grinding of the tooth block on the large gear 9 by the grinding wheel roller 4 (the friction resistance between the worm I 77 and the corresponding worm wheel, threaded rod 78, and support member 79 is relatively small, aiming to ensure the timeliness and effectiveness of automatically increasing the grinding force of the grinding wheel roller 4 on the tooth block in this area when the grinding wheel roller 4 grinds the area with a relatively high tooth block roughness).
[0073] When the grinding of the area with a relatively high tooth block roughness on the large gear 9 by the grinding wheel roller 4 is completed and the grinding resistance of the ground tooth block area decreases, at this time, through the self-elastic force of the corresponding torsion spring I 73, it will drive the rotating shaft 72 to drive the worm I 77 to rotate and reset. When the worm I 77 rotates and resets, through the cooperation of the corresponding worm wheel and threaded rod 78, it can drive the corresponding support member 79 to move downward and reset (as Figure 12 shown in the direction), that is, cancel the extrusion force on the corresponding two spring telescopic rods II 710, so that the grinding wheel roller 4 returns to the initial grinding force on the tooth block, thereby ensuring the grinding effect of the grinding wheel roller 4 on the surfaces of the remaining tooth blocks subsequently;
[0074] Meanwhile, when the grinding wheel roller 4 rotates under force to grind the tooth block on the large gear 9 and grinds to an area with a relatively low roughness, at this time, the frictional resistance generated by the tooth block on the grinding wheel roller 4 will decrease accordingly. When the rotational grinding resistance of the grinding wheel roller 4 decreases, the extrusion force between it and the multiple elastic extrusion members 85 can no longer drive the multiple elastic extrusion members 85, driving member 84, and limit disk 83 to continue rotating. At this time, the rotation of the grinding wheel roller 4 cooperates with the multiple push plates 89 through the annular chute 88, and the driving force generated on the multiple push members 811 and multiple elastic connecting members 810 will cause the multiple elastic connecting members 810 (as Figure 18 shown in the direction, the connecting part between the elastic connecting member 810 and the corresponding push member 811 is made of elastic material) to drive the corresponding push members 811 to slide counterclockwise along the corresponding arc-shaped groove 87 (as Figure 18 shown), and when the elastic connecting member 810 slides counterclockwise along the corresponding arc-shaped groove 87, the downward protruding part of the arc-shaped groove 87 on the left side of the elastic connecting member 810 (as Figure 18In the shown direction), it will cause the elastic connecting member 810 to rotate downward and displace. When the elastic connecting member 810 moves downward under force and compresses the elastic part connected between the corresponding pushing members 811, according to the above principle, the reaction force generated by this compression will increase the frictional force between the lower end of the pushing member 811 and the fixed cylinder 86. That is, when the plurality of pushing plates 89 are pushed by force to drive the plurality of pushing members 811 to rotate, the fixed cylinder 86 will be driven to rotate together.
[0075] When the fixed cylinder 86 is driven by force to drive the second worm 812 and the corresponding rotating shaft 72 to rotate, at this time, through the cooperation of the second worm 812 with the corresponding worm wheel and the threaded rod 78, the corresponding support member 79 can be driven to move downward to compress the corresponding two second spring telescopic rods 710. The reaction force generated by the compression of the corresponding two second spring telescopic rods 710 will be transmitted to the grinding wheel roller 4 through the corresponding extrusion plate 711, making the grinding wheel roller 4 have a tendency to move downward. In this way, the grinding force of the grinding wheel roller 4 on the surface of the grinding tooth block can be reduced, which helps to ensure that when the grinding wheel roller 4 grinds to the lower area of the rough end of the tooth block, the grinding effect of the grinding wheel roller 4 on this area is adaptively reduced, thereby helping to further improve the overall grinding accuracy of the grinding wheel roller 4 on the tooth blocks of the large gear 9 (the friction resistance between the second worm 812 and the corresponding worm wheel, threaded rod 78, and support member 79 is set to be small, aiming to ensure the timeliness and effectiveness of automatically reducing the grinding force of the grinding wheel roller 4 on this area of the tooth block when the grinding wheel roller 4 grinds to the area with lower roughness of the tooth block).
[0076] At the same time, when the grinding of the area with lower roughness of the tooth block by the grinding wheel roller 4 is completed and the grinding resistance of the tooth block surface to it increases, at this time, through the self-elastic force of the corresponding first torsion spring 73, the cooperation of the rotating shaft 72, the driving component, and the pressure regulating component, the fixed cylinder 86 is driven to rotate quickly and reset. At this time, the driving force applied by the fixed cylinder 86 to the plurality of pushing members 811 can make the pushing members 811 push the corresponding elastic connecting members 810 and the pushing plates 89 to rotate and reset in the reverse direction until the plurality of elastic connecting members 810 move to the initial position. In this way, it is convenient for the grinding wheel roller 4 to automatically reduce the grinding force on it through the pressure reducing component 8 when grinding to the area with lower roughness of the tooth blocks on the large gear 9 in the subsequent process.
[0077] Further explanation, the above fixed connection, unless otherwise clearly specified and limited, should be understood in a broad sense. For example, it can be welding, gluing, or integrally formed setting, etc., which are common means well-known to those skilled in the art.
[0078] In the present invention, before the laser cladding treatment of the large gear 9, grinding treatment is required. At this time, the equipment main body 2 is first moved directly below the large gear 9, and then the electric telescopic rod 52 is started. When the electric telescopic rod 52 operates and drives the grinding wheel roller 4 to fit the surface of the tooth block below the large gear 9, through the continuous operation of the electric telescopic rod 52, the contact normal pressure between the grinding wheel roller 4 and the tooth block on the large gear 9 can be adaptively adjusted according to the overall balanced roughness of the tooth blocks on the large gear 9 and the required grinding degree of the overall tooth blocks, that is, the grinding force of the grinding wheel roller 4 on the tooth blocks on the large gear 9 is adaptively increased.
[0079] When the large gear 9 is driven to rotate by the existing driving equipment and the grinding wheel roller 4 is driven to rotate by the existing transmission equipment, the grinding treatment of the tooth blocks on the large gear 9 by the grinding wheel roller 4 can be realized. During the rotation of the large gear 9, through the pressure exerted on the grinding wheel roller 4 by the overall tooth blocks (including the tooth surface, tooth root, and tooth tip) on the large gear 9 and the self-elastic force of the plurality of spring telescopic rods 54, the grinding wheel roller 4 can always fit on the surface of the tooth block to comprehensively grind the surface of the tooth block, thereby realizing the uniformity of the overall grinding of the tooth blocks on the large gear 9 by the grinding wheel roller 4, which helps to improve the overall grinding effect of the tooth blocks on the large gear 9 by the grinding wheel roller 4. At the same time, during the grinding process of the tooth blocks on the large gear 9 by the grinding wheel roller 4, through the liquid supply assembly 6, timely spraying and cleaning and spraying heat dissipation of the large gear 9 to be ground and the grinding components can be realized, and at the same time, the temperature reduction treatment of the grinding wheel roller 4 can be realized, which helps to further improve the grinding effect of the equipment on the large gear 9.
[0080] At the same time, when the grinding wheel roller 4 grinds the tooth blocks on the large gear 9, through the cooperation of the pressure increasing assembly 7 and the pressure reducing assembly 8, the roughness of the grinding area of the tooth blocks on the large gear 9 by the grinding wheel roller 4 can be automatically adjusted, and the grinding force of the grinding wheel roller 4 on the large gear 9 can be adaptively increased or decreased, which helps to improve the grinding accuracy of the tooth blocks on the large gear 9 by the grinding wheel roller 4 and further improve the grinding effect of the equipment on the large gear 9.
[0081] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A large rotary kiln gear laser cladding pretreatment device, comprising a rotary kiln main body (1), a device main body (2), and a grinding wheel roller (4). A large gear (9) is installed on the rotary kiln main body (1), and it is characterized in that, An adjustment component (5) is provided on the device main body (2), and a pressure boosting component (7) and a pressure reducing component (8) are provided on the grinding wheel roller (4). The two cooperate to automatically adjust the grinding force of the grinding wheel roller (4); The adjustment component (5) includes a recovery box (3) fixedly installed on the device main body (2). Inside the recovery box (3), a first spring telescopic rod (54) evenly distributed linearly is installed through a lifting component. A liquid storage plate (55) is fixedly installed among the first spring telescopic rods (54). Two support blocks (56) are fixedly installed on the liquid storage plate (55), and the grinding wheel roller (4) is rotatably installed between the two support blocks (56); The pressure boosting component (7) includes two fixed plates (71) rotatably installed on the inner wall of the grinding wheel roller (4). A rotating shaft (72) is rotatably installed on each of the two fixed plates (71). A first torsion spring (73) is fixedly installed between each of the two rotating shafts (72) and the corresponding fixed plate (71). A pressure boosting mechanism is installed on one side of the rotating shaft (72); The pressure reducing component (8) includes a fixed cylinder (86) fixedly installed on the other side of the rotating shaft (72). A pressure reducing mechanism is installed on the fixed cylinder (86).
2. The pretreatment equipment for laser cladding of gears of a large rotary kiln according to claim 1, characterized in that, The lifting component includes a filter plate (51) fixedly installed on the inner wall of the recovery box (3). An electric telescopic rod (52) is fixedly installed on the filter plate (51). The upper end of the electric telescopic rod (52) is fixedly installed with a support plate (53), and the lower ends of the first spring telescopic rods (54) are fixedly connected to the support plate (53). Two support columns are fixedly installed on the filter plate (51), and the support plate (53) is slidably installed between the two support columns.
3. A large rotary kiln gear laser cladding pretreatment device according to claim 1, characterized in that, The pressure boosting mechanism includes a friction roller (74) fixedly installed on one side of the rotating shaft (72). A first worm (77) is fixedly installed on one side of the rotating shaft (72). An impedance adjustment component is installed on one side of the support block (56).
4. A large rotary kiln gear laser cladding pretreatment device according to claim 3, characterized in that, The impedance adjustment component includes a first micro motor (75) fixedly installed on the side wall of one side of the support block (56). A rotating shaft is fixedly installed on the driving end of the first micro motor (75). A disc is fixedly installed on the rotating shaft. A second torsion spring (76) is fixedly installed between the disc and the corresponding rotating shaft (72).
5. A large rotary kiln gear laser cladding pretreatment device according to claim 3, characterized in that, The pressure reducing mechanism includes a second micro motor (81) fixedly installed on the other side of the support block (56). A lead screw is fixedly installed on the driving end of the second micro motor (81). A moving part is installed on the lead screw through a ball nut. A conical block (82) is fixedly installed on the moving part, and the conical block (82) is slidably installed on the fixed cylinder (86); A limit disc (83) is rotatably installed on the fixed cylinder (86). A sliding port evenly distributed in a ring shape is formed on the limit disc (83). A driving part (84) matched with the conical block (82) is slidably installed on each of the sliding ports. An elastic extrusion part (85) is fixedly installed on each of the driving parts (84). A driving component is installed between the fixed cylinder (86) and the grinding wheel roller (4). A voltage regulation component is jointly installed between the two support blocks (56) and the first worm (77).
6. A large rotary kiln gear laser cladding pretreatment device according to claim 5, characterized in that, The driving component includes an annular chute (88) formed on the inner wall of the grinding wheel roller (4), and annularly and uniformly distributed pushing plates (89) are slidably mounted on the annular chute (88); Arc-shaped grooves (87) are formed on the limiting disc (83) in an annular and uniform distribution, elastic connectors (810) are slidably mounted on the arc-shaped grooves (87), pushing members (811) are fixedly mounted on the elastic connectors (810), and the pushing members (811) are all matched with the corresponding pushing plates (89).
7. A large rotary kiln gear laser cladding pretreatment device according to claim 5, characterized in that, The pressure regulating component includes a second worm (812) fixedly mounted on the fixed cylinder (86). Placing grooves are formed on both of the two supporting blocks (56), threaded rods (78) are rotatably mounted on the two placing grooves, worm wheels are fixedly mounted on the two threaded rods (78), and the two worm wheels are respectively engaged with the corresponding first worm (77) and second worm (812); Support members (79) are threadedly mounted on the two threaded rods (78), two second spring telescopic rods (710) are fixedly mounted on the two support members (79), and pressing plates (711) are fixedly mounted between the corresponding two second spring telescopic rods (710).
8. A large rotary kiln gear laser cladding pretreatment device according to claim 2, characterized in that, A liquid supply assembly (6) is arranged on the recovery box (3). The liquid supply assembly (6) includes a liquid supply tank fixedly mounted on the equipment main body (2). A liquid infusion pipe (61) is fixedly communicated with the liquid supply tank. A conduit (62) is fixedly mounted on the support plate (53), and the conduit (62) is fixedly communicated with the liquid infusion pipe (61). A liquid storage groove (64) is formed on the liquid storage plate (55), and a plurality of liquid spraying pipes (65) are fixedly communicated with the liquid storage plate (55); Cylinders (63) are fixedly mounted on the inner walls of the fixed ends of the first spring telescopic rods (54), and the cylinders (63) are all fixedly communicated with the conduit (62). Circular holes are formed in the telescopic ends of the first spring telescopic rods (54), and the circular holes are all communicated with the liquid storage groove (64).