CN112065953B - Low-noise transmission gear and manufacturing method thereof - Google Patents
Low-noise transmission gear and manufacturing method thereof Download PDFInfo
- Publication number
- CN112065953B CN112065953B CN202011100900.5A CN202011100900A CN112065953B CN 112065953 B CN112065953 B CN 112065953B CN 202011100900 A CN202011100900 A CN 202011100900A CN 112065953 B CN112065953 B CN 112065953B
- Authority
- CN
- China
- Prior art keywords
- fan
- gear
- shaped
- gear disc
- positioning
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/02—Toothed members; Worms
- F16H55/17—Toothed wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/14—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass gear parts, e.g. gear wheels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/028—Gearboxes; Mounting gearing therein characterised by means for reducing vibration or noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0412—Cooling or heating; Control of temperature
- F16H57/0415—Air cooling or ventilation; Heat exchangers; Thermal insulations
- F16H57/0416—Air cooling or ventilation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gears, Cams (AREA)
Abstract
The invention discloses a low-noise transmission gear and a manufacturing method thereof, and the low-noise transmission gear comprises a gear disc, wherein a noise reduction assembly is arranged on the gear disc and comprises two positioning rings which are symmetrically arranged, fan-shaped blocks are uniformly arranged on the inner circumferential side surface of each positioning ring, a U-shaped groove is formed between every two adjacent fan-shaped blocks, annular grooves are symmetrically arranged on the two axial end surfaces of the gear disc, the positioning rings are matched with the annular grooves, the fan-shaped grooves are uniformly arranged on the inner circumferential side surface of each annular groove, and the fan-shaped blocks are matched with the fan-shaped grooves. The method comprises the following steps: gear disc processing, slotted hole are seted up, noise reduction component processing and gear assembly. The invention can improve the contact area between the noise reduction component and the gear disc and greatly improve the noise reduction effect of the transmission gear by the design of the positioning ring and the fan-shaped block.
Description
Technical Field
The invention relates to a low-noise transmission gear and a manufacturing method thereof.
Background
Gear transmission is one of the most widely used mechanical transmission forms. The gear transmission has the characteristics of stable transmission, accurate transmission ratio, reliable work, high efficiency, long service life and large range of use power, speed and size.
However, in the gear in the prior art, due to the factors such as machining errors and assembly errors existing in the manufacturing process, impact is caused in the alternating process of the meshing teeth of the transmission gear, noise is generated, and the transmission precision is influenced.
Disclosure of Invention
The invention aims to provide a technical scheme of a low-noise transmission gear and a manufacturing method thereof aiming at the defects in the prior art, the contact area between a noise reduction assembly and a gear disc can be increased through the design of a positioning ring and a fan-shaped block, the noise reduction effect of the transmission gear is greatly improved, the manufacturing method has simple steps, the assembly precision and the assembly efficiency of the transmission gear are improved, the overall performance of the transmission gear can be ensured, and the noise of the transmission gear during working can be greatly reduced.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a low noise drive gear, includes the toothed disc, evenly is provided with the teeth of a cogwheel on the outer circumference side of toothed disc, its characterized in that: the gear disc is provided with a noise reduction assembly, the noise reduction assembly comprises two positioning rings which are symmetrically arranged, sector blocks are uniformly arranged on the inner circumferential side surfaces of the positioning rings, a U-shaped groove is formed between every two adjacent sector blocks, annular grooves are symmetrically arranged on two axial end surfaces of the gear disc, the positioning rings are matched with the annular grooves, sector grooves are uniformly arranged on the inner circumferential side surfaces of the annular grooves, and the sector blocks are matched with the sector grooves; through the design of holding ring and fan-shaped piece, can improve the area of contact between subassembly and the toothed disc of making an uproar that falls, improve drive gear's noise reduction effect greatly, the ring channel is used for spacing to the holding ring, and the fan-shaped groove is used for spacing to the fan-shaped piece, improves the stability of being connected between fan-shaped piece, holding ring and fan-shaped groove and the ring channel.
Furthermore, a positioning block is uniformly arranged on the edge of one side, close to the gear disc, of the positioning ring, a positioning groove is uniformly formed in the side face of the outer circumference of the fan-shaped groove, the positioning block is matched with the positioning groove, and through the design of the positioning block and the positioning groove, the mounting precision and the stability among the positioning ring, the fan-shaped block and the gear disc can be improved, the quick positioning is facilitated, and the assembly efficiency is improved.
Furthermore, evenly be provided with the mounting hole on the toothed disc, the holding ring and the segment of both sides pass the mounting hole through the connecting rod and realize fixed connection, pass the mounting hole through the connecting rod, can be with holding ring and segment fixed connection in the both sides of toothed disc.
Furthermore, holding ring and fan-shaped piece integrated into one piece, the intensity and the stability of being connected between holding ring and the fan-shaped piece not only can be improved to the integrated into one piece structure, have effectively increased the area of contact between holding ring, fan-shaped piece and the toothed disc moreover, improve noise reduction effect.
Furthermore, the positioning ring and the fan-shaped blocks are made of inorganic foam materials.
Preferably, the inorganic foam material is foamed aluminum, the foamed aluminum is formed by a foaming process, has characteristics of bubbles and metal, and is small in density, high in impact absorption capacity, high in high temperature resistance, high in fire resistance, corrosion resistance, sound insulation and noise reduction, low in heat conductivity, high in electromagnetic shielding performance, weather-resistant cavity, filtering capacity, easy to process and install, high in forming precision and capable of being subjected to surface coating.
Furthermore, the cross-sectional area of the U-shaped groove is reduced by the equal proportion of the centers of the outer circumference side gear discs of the gear discs in the radial direction, the design of the structure is convenient for increasing the contact area between the fan-shaped block and the gear discs, the connection strength and the stability between the fan-shaped block and the positioning ring can be improved, and meanwhile, the normal heat dissipation of the heat dissipation holes is not influenced.
Further, evenly be provided with the louvre on the toothed disc, the louvre is the annular and distributes, and the louvre is located the U-shaped inslot, and the louvre not only can reduce the weight of toothed disc, can accelerate the radiating effect of toothed disc moreover, extension drive gear's life.
Furthermore, a shaft hole is formed in the center of the gear disc, and a key groove is formed in the inner side of the shaft hole, so that the transmission gear can be conveniently installed.
The manufacturing method of the low-noise transmission gear is characterized by comprising the following steps of:
1) gear disc machining
a. Firstly, putting a gear blank into a normalizing furnace, controlling the temperature to be 800-1000 ℃, heating for 3-5 hours, cooling to 500 ℃, preserving heat for 2-3 hours, cooling to 200 ℃, preserving heat for 3-4 hours, and discharging to form a semi-finished gear plate;
b. then, carrying out tooth brushing treatment on the semi-finished gear disc by using a tooth brushing machine;
c. then performing carburizing treatment on the brushed semi-finished gear disc by using a multipurpose furnace, quenching the treated semi-finished gear disc in a quenching oil tank, controlling the oil temperature in the quenching oil tank to be 120-140 ℃, stirring oil liquid in the quenching oil tank, wherein the quenching time is 20-30 min, draining oil from the quenched semi-finished gear disc in the quenching oil tank for 30-40 min, removing redundant oil liquid on the surface of the semi-finished gear disc by using a cleaning machine, putting the cleaned semi-finished gear disc into a tempering furnace for tempering, the tempering temperature is 180-200 ℃, and the tempering time is 30-40 min, so as to form a finished gear disc;
2) the slotted hole is provided with
a. Firstly, according to design requirements, an axle hole is formed along the center of a gear disc along the axial direction, the inner side surface of the axle hole is polished, and a key groove is formed along the inner side surface of the axle hole;
b. then, the positions of the annular grooves and the fan-shaped grooves are determined along the two shaft end faces of the gear disc according to design requirements, the corresponding annular grooves and the corresponding fan-shaped grooves are drilled, the depth of the annular grooves and the depth of the fan-shaped grooves are 1/4 of the thickness of the gear, the fan-shaped grooves are uniformly distributed along the inner circumferential side face of the annular grooves, the design of the annular grooves and the fan-shaped grooves cannot influence the overall strength of the transmission gear, the integral assembly of the noise reduction assembly is facilitated, and the assembly precision is improved;
c. positioning grooves are uniformly formed along the side surface of the outer circumference of the annular groove, mounting holes are formed between the annular groove and the fan-shaped groove at equal intervals, the mounting holes penetrate through the gear disc, the positioning grooves are used for mounting positioning blocks, the assembly precision and the assembly effect of the positioning rings and the fan-shaped blocks are improved, and the mounting holes are convenient for the fixed connection between every two adjacent positioning rings and the fan-shaped blocks;
d. finally, radiating holes are formed between every two adjacent fan-shaped grooves and penetrate through the gear disc, so that the radiating efficiency of the transmission gear is improved, and the service life of the transmission gear is prolonged;
3) noise reduction assembly machining
a. Firstly, forming a required positioning ring and a required fan-shaped block by casting according to the sizes of the annular groove and the fan-shaped groove, wherein the positioning ring and the fan-shaped block are made of inorganic foam materials, the fan-shaped blocks are uniformly distributed along the inner side surface of the positioning ring, a U-shaped groove is formed between every two adjacent fan-shaped blocks, the cross section area of the U-shaped groove is reduced by the equal proportion of the outer circumference of the gear disc to the center of the gear disc along the radial direction, the connection stability and the strength between the fan-shaped blocks and the positioning ring are not improved, the processing and the forming are convenient, the installation precision is improved, and meanwhile, the noise reduction effect is good;
b. then, positioning blocks matched with the positioning grooves are uniformly arranged on the outer circumference of one side, which is contacted with the annular groove, of the positioning ring, through holes are uniformly formed between the positioning ring and the fan-shaped blocks, so that the through holes are matched with the mounting holes, a connecting rod conveniently penetrates through the mounting holes and the through holes, the fixed connection between two adjacent positioning rings and the fan-shaped blocks is realized, and the connection strength and the stability between the noise reduction assembly and the gear disc are improved;
c. then selecting a corresponding connecting rod according to the thickness of the gear disc, and polishing the positioning ring and the outer side face of the fan-shaped block;
4) gear assembly
a. Firstly, respectively installing the processed positioning ring and the fan-shaped block into the annular groove and the fan-shaped groove on two sides of the gear disc, and inserting the positioning block into the positioning groove to realize the positioning of the positioning ring and the fan-shaped block;
b. then the connecting rod is inserted into the through hole and penetrates through the mounting hole, so that the fan-shaped blocks and the positioning rings on the two sides are fixedly connected with the gear disc;
c. and then mounting the machined transmission gear on a transmission shaft for testing.
The manufacturing method has simple steps, not only improves the assembly precision and the assembly efficiency of the transmission gear, but also can ensure the overall performance of the transmission gear and greatly reduce the noise of the transmission gear during working.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
1. through the design of holding ring and sector, can improve the area of contact between the subassembly of making an uproar and the toothed disc of falling, improve drive gear's noise reduction effect greatly.
2. The annular groove is used for limiting the positioning ring, the fan-shaped groove is used for limiting the fan-shaped block, and the connection stability between the fan-shaped block and the positioning ring and between the fan-shaped groove and the annular groove is improved.
3. Through the design of locating piece and constant head tank, not only can improve the installation accuracy and the stability between holding ring, sector block and the toothed disc, be convenient for fix a position fast moreover, improve the efficiency of assembly.
4. The positioning ring and the fan-shaped block are made of foamed aluminum, the foamed aluminum is formed by a foaming process, has the characteristics of bubbles and metal, and has the advantages of small density, high impact absorption capacity, high temperature resistance, high fire resistance, corrosion resistance, sound insulation and noise reduction, low heat conductivity, high electromagnetic shielding performance, weather resistance, filtering capacity, easiness in processing and installation, high forming precision and capability of performing surface coating.
5. The manufacturing method has simple steps, not only improves the assembly precision and the assembly efficiency of the transmission gear, but also can ensure the overall performance of the transmission gear and greatly reduce the noise of the transmission gear during working.
Description of the drawings:
the invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a view showing the effect of a low noise transmission gear and a transmission gear in a method for manufacturing the same according to the present invention;
FIG. 2 is a schematic structural view of a gear plate according to the present invention;
FIG. 3 is a schematic structural diagram of a noise reduction assembly according to the present invention.
In the figure: 1-a gear disc; 2-gear teeth; 3-shaft hole; 4-a keyway; 5-heat dissipation holes; 6-a noise reduction assembly; 7-an annular groove; 8-positioning grooves; 9-mounting holes; 10-a sector groove; 11-positioning blocks; 12-a positioning ring; 13-segment; 14-connecting rod.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terms first, second and the like in the description and in the claims, and in the drawings, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
As shown in fig. 1 to 3, the low-noise transmission gear of the present invention comprises a gear plate 1, gear teeth 2 are uniformly arranged on the outer circumferential side of the gear plate 1, a noise reduction assembly 6 is arranged on the gear plate 1, the noise reduction assembly 6 comprises two positioning rings 12 which are symmetrically arranged, sector blocks 13 are uniformly arranged on the inner circumferential side of each positioning ring 12, a U-shaped groove is formed between every two adjacent sector blocks 13, annular grooves 7 are symmetrically arranged on two axial end faces of the gear plate 1, the positioning rings 12 are matched with the annular grooves 7, sector grooves 10 are uniformly arranged on the inner circumferential side of each annular groove 7, and the sector blocks 13 are matched with the sector grooves 10; through the design of holding ring 12 and sector piece 13, can improve the area of contact between subassembly 6 and the toothed disc 1 of making an uproar, improve drive gear's noise reduction effect greatly, ring channel 7 is used for spacing holding ring 12, and sector groove 10 is used for spacing sector piece 13, improves sector piece 13, holding ring 12 and the connection stability between sector groove 10 and the ring channel 7.
The locating block 11 is evenly arranged on the edge of one side, close to the gear disc 1, of the locating ring 12, the locating groove 8 is evenly arranged on the side face of the outer circumference of the fan-shaped groove 10, the locating block 11 is matched with the locating groove 8, and through the design of the locating block 11 and the locating groove 8, the installation accuracy and stability among the locating ring 12, the fan-shaped block 13 and the gear disc 1 can be improved, the fast locating is convenient, and the assembling efficiency is improved.
Evenly be provided with mounting hole 9 on the toothed disc 1, the holding ring 12 and the segment 13 of both sides pass mounting hole 9 through connecting rod 14 and realize fixed connection, pass mounting hole 9 through connecting rod 14, can be with holding ring 12 and segment 13 fixed connection in the both sides of toothed disc 1.
Holding ring 12 and fan-shaped piece 13 integrated into one piece, the intensity and the stability of being connected between holding ring 12 and the fan-shaped piece 13 not only can be improved to the integrated into one piece structure, have effectively increased the area of contact between holding ring 12, fan-shaped piece 13 and the toothed disc 1 moreover, improve the noise reduction effect.
The positioning ring 12 and the segments 13 are made of inorganic foam materials. Preferably, the inorganic foam material is foamed aluminum, the foamed aluminum is formed by a foaming process, has characteristics of bubbles and metal, and is small in density, high in impact absorption capacity, high in high temperature resistance, high in fire resistance, corrosion resistance, sound insulation and noise reduction, low in heat conductivity, high in electromagnetic shielding performance, weather-resistant cavity, filtering capacity, easy to process and install, high in forming precision and capable of being subjected to surface coating.
The cross-sectional area of the U-shaped groove is reduced by the equal proportion of the center of the gear disc 1 along the outer circumference of the gear disc 1 along the radial direction, the design of the structure is convenient for increasing the contact area between the sector 13 and the gear disc 1, the connection strength and the stability between the sector 13 and the positioning ring 12 can be improved, and meanwhile, the normal heat dissipation of the heat dissipation holes 5 is not influenced.
Evenly be provided with louvre 5 on the toothed disc 1, louvre 5 is the annular and distributes, and louvre 5 is located the U-shaped inslot, and louvre 5 not only can reduce toothed disc 1's weight, can accelerate toothed disc 1's radiating effect moreover, extension drive gear's life.
The center of the gear plate 1 is provided with a shaft hole 3, and the inner side of the shaft hole 3 is provided with a key groove 4, so that the transmission gear can be conveniently installed.
The manufacturing method of the low-noise transmission gear comprises the following steps:
1) gear disc 1 machining
a. Firstly, putting a gear blank into a normalizing furnace, controlling the temperature to be 800-1000 ℃, heating for 3-5 hours, cooling to 500 ℃, preserving heat for 2-3 hours, cooling to 200 ℃, preserving heat for 3-4 hours, and discharging to form a semi-finished gear plate 1;
b. then, carrying out tooth brushing treatment on the semi-finished gear disc 1 by adopting a tooth brushing machine;
c. then performing carburizing treatment on the brushed semi-finished gear disc 1 by using a multipurpose furnace, quenching the treated semi-finished gear disc 1 in a quenching oil tank, controlling the oil temperature in the quenching oil tank to be 120-140 ℃, stirring oil liquid in the quenching oil tank, wherein the quenching time is 20-30 min, draining oil from the quenched semi-finished gear disc 1 in the quenching oil tank for 30-40 min, removing redundant oil liquid on the surface of the semi-finished gear disc 1 by using a cleaning machine, tempering the cleaned semi-finished gear disc 1 in a tempering furnace at the tempering temperature of 180-200 ℃ for 30-40 min to form a finished gear disc 1;
2) the slotted hole is provided with
a. Firstly, according to design requirements, an axle hole 3 is formed along the center of a gear disc 1 along the axial direction, the inner side surface of the axle hole 3 is polished, and a key groove 4 is formed along the inner side surface of the axle hole 3;
b. then, the positions of the annular groove 7 and the sector groove 10 are determined along the two axial end faces of the gear plate 1 according to design requirements, the corresponding annular groove 7 and the corresponding sector groove 10 are drilled, the depth of the annular groove 7 and the depth of the sector groove 10 are 1/4 of the thickness of the gear, the sector grooves 10 are guaranteed to be uniformly distributed along the inner circumferential side face of the annular groove 7, the design of the annular groove 7 and the sector groove 10 cannot influence the integral strength of the transmission gear, the integral assembly of the noise reduction assembly 6 is facilitated, and the assembly precision is improved;
c. positioning grooves 8 are uniformly formed along the side face of the outer circumference of the annular groove 7, mounting holes 9 are formed between the annular groove 7 and the sector grooves 10 at equal intervals, the mounting holes 9 penetrate through the gear plate 1, the positioning grooves 8 are used for mounting positioning blocks 11, the assembling precision and the assembling effect of the positioning rings 12 and the sector blocks 13 are improved, and the mounting holes 9 are convenient for the fixed connection between every two adjacent positioning rings 12 and the sector blocks 13;
d. finally, heat dissipation holes 5 are formed between every two adjacent fan-shaped grooves 10, so that the heat dissipation holes 5 penetrate through the gear disc 1, the heat dissipation efficiency of the transmission gear is improved, and the service life of the transmission gear is prolonged;
3) machining of noise reduction assembly 6
a. Firstly, forming a required positioning ring 12 and a required sector block 13 by casting according to the sizes of an annular groove 7 and a sector groove 10, wherein the positioning ring 12 and the sector block 13 are made of inorganic foam materials, the sector blocks 13 are ensured to be uniformly distributed along the inner side surface of the positioning ring 12, a U-shaped groove is formed between every two adjacent sector blocks 13, the cross-sectional area of the U-shaped groove is reduced by the equal proportion of the outer circumference of the gear disc 1 to the center of the gear disc 1 along the radial direction, the connection stability and the strength between the sector block 13 and the positioning ring 12 are not improved, the processing and the forming are convenient, the installation precision is improved, and meanwhile, the noise reduction effect is good;
b. then, positioning blocks 11 matched with the positioning grooves 8 are uniformly arranged on the outer circumference of one side, which is in contact with the annular groove 7, of the positioning ring 12, through holes are uniformly formed between the positioning ring 12 and the fan-shaped blocks 13, so that the through holes are matched with the mounting holes 9, the connecting rod 14 conveniently penetrates through the mounting holes 9 and the through holes, the fixed connection between two adjacent positioning rings 12 and the fan-shaped blocks 13 is realized, and the connection strength and the stability between the noise reduction assembly 6 and the gear disc 1 are improved;
c. then, selecting a corresponding connecting rod 14 according to the thickness of the gear disc 1, and polishing the outer side surfaces of the positioning ring 12 and the fan-shaped blocks 13;
4) gear assembly
a. Firstly, respectively installing a processed positioning ring 12 and a processed fan-shaped block 13 into an annular groove 7 and a fan-shaped groove 10 on two sides of a gear disc 1, and inserting a positioning block 11 into a positioning groove 8 to realize the positioning of the positioning ring 12 and the fan-shaped block 13;
b. then the connecting rod 14 is inserted into the through hole and penetrates through the mounting hole 9, so that the fan-shaped blocks 13 and the positioning rings 12 on the two sides are fixedly connected with the gear disc 1;
c. and then mounting the machined transmission gear on a transmission shaft for testing.
The manufacturing method has simple steps, not only improves the assembly precision and the assembly efficiency of the transmission gear, but also can ensure the overall performance of the transmission gear and greatly reduce the noise of the transmission gear during working.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple variations, equivalent substitutions or modifications based on the present invention to achieve substantially the same technical effects are within the scope of the present invention.
Claims (9)
1. A manufacturing method of a low-noise transmission gear comprises a gear disc, gear teeth are uniformly arranged on the side surface of the outer circumference of the gear disc, and the low-noise transmission gear is characterized in that: the last subassembly of making an uproar that falls that is provided with of toothed disc, the subassembly of making an uproar that falls includes the holding ring that two symmetries set up, evenly be provided with the quadrant piece on the interior circumference side of holding ring, adjacent two form the U-shaped groove between the quadrant piece, the symmetry is provided with the ring channel on two shaft ends of toothed disc, the holding ring with the ring channel phase-match, evenly be provided with the quadrant groove on the interior circumference side of ring channel, the quadrant piece with the quadrant groove phase-match, including following step:
1) gear disc machining
a. Firstly, putting a gear blank into a normalizing furnace, controlling the temperature to be 800-1000 ℃, heating for 3-5 hours, cooling to 500 ℃, preserving heat for 2-3 hours, cooling to 200 ℃, preserving heat for 3-4 hours, and discharging to form a semi-finished gear plate;
b. then, carrying out tooth brushing treatment on the semi-finished gear disc by using a tooth brushing machine;
c. then performing carburizing treatment on the brushed semi-finished gear disc by using a multipurpose furnace, quenching the treated semi-finished gear disc in a quenching oil tank, controlling the oil temperature in the quenching oil tank to be 120-140 ℃, stirring oil liquid in the quenching oil tank, wherein the quenching time is 20-30 min, draining oil from the quenched semi-finished gear disc in the quenching oil tank for 30-40 min, removing redundant oil liquid on the surface of the semi-finished gear disc by using a cleaning machine, putting the cleaned semi-finished gear disc into a tempering furnace for tempering, the tempering temperature is 180-200 ℃, and the tempering time is 30-40 min, so as to form a finished gear disc;
2) the slotted hole is provided with
a. Firstly, according to design requirements, an axle hole is formed along the center of a gear disc along the axial direction, the inner side surface of the axle hole is polished, and a key groove is formed along the inner side surface of the axle hole;
b. then determining the positions of the annular grooves and the fan-shaped grooves along the two shaft end surfaces of the gear disc according to design requirements, drilling the corresponding annular grooves and the corresponding fan-shaped grooves, wherein the depths of the annular grooves and the fan-shaped grooves are 1/4 of the thickness of the gear, and ensuring that the fan-shaped grooves are uniformly distributed along the inner circumferential side surface of the annular grooves;
c. then, positioning grooves are uniformly formed along the side surface of the outer circumference of the annular groove, and mounting holes are formed between the annular groove and the fan-shaped groove at equal intervals, so that the mounting holes penetrate through the gear disc;
d. finally, heat dissipation holes are formed between every two adjacent fan-shaped grooves and penetrate through the gear disc;
3) noise reduction assembly machining
a. Firstly, forming a required positioning ring and a required fan-shaped block by casting according to the sizes of the annular groove and the fan-shaped groove, wherein the positioning ring and the fan-shaped block are made of inorganic foam materials, so that the fan-shaped blocks are uniformly distributed along the inner side surface of the positioning ring, a U-shaped groove is formed between every two adjacent fan-shaped blocks, and the cross-sectional area of the U-shaped groove is reduced by the equal proportion of the outer circumference of the gear disc to the center of the gear disc along the radial direction;
b. then, positioning blocks matched with the positioning grooves are uniformly arranged on the outer circumference of one side of the positioning ring, which is in contact with the annular groove, and through holes are uniformly formed between the positioning ring and the fan-shaped blocks, so that the through holes are matched with the mounting holes;
c. then selecting a corresponding connecting rod according to the thickness of the gear disc, and polishing the positioning ring and the outer side face of the fan-shaped block;
4) gear assembly
a. Firstly, respectively installing the processed positioning ring and the fan-shaped block into the annular groove and the fan-shaped groove on two sides of the gear disc, and inserting the positioning block into the positioning groove to realize the positioning of the positioning ring and the fan-shaped block;
b. then the connecting rod is inserted into the through hole and penetrates through the mounting hole, so that the fan-shaped blocks and the positioning rings on the two sides are fixedly connected with the gear disc;
c. and then mounting the machined transmission gear on a transmission shaft for testing.
2. A method of manufacturing a low noise transmission gear according to claim 1, wherein: the locating ring is close to the edge of one side of toothed disc evenly is provided with the locating piece, evenly be provided with the constant head tank on the outer circumference side of sector groove, the locating piece with the constant head tank phase-match.
3. A method of manufacturing a low noise transmission gear according to claim 1 or 2, wherein: the gear plate is evenly provided with mounting holes, the positioning rings and the fan-shaped blocks on two sides penetrate through the connecting rods and are fixedly connected with each other.
4. A method of manufacturing a low noise transmission gear according to claim 1 or 2, wherein: the positioning ring and the fan-shaped blocks are integrally formed.
5. A method of manufacturing a low noise transmission gear according to claim 1 or 2, wherein: the positioning ring and the fan-shaped blocks are made of inorganic foam materials.
6. The method of manufacturing a low noise transmission gear according to claim 5, wherein: the inorganic foam material is foamed aluminum.
7. A method of manufacturing a low noise transmission gear according to claim 1, wherein: the cross-sectional area of the U-shaped groove is reduced from the outer circumference side of the gear disc to the center of the gear disc in an equal proportion along the radial direction.
8. A method of manufacturing a low noise transmission gear according to claim 1 or 7, wherein: the gear disc is evenly provided with heat dissipation holes which are distributed annularly, and the heat dissipation holes are located in the U-shaped grooves.
9. A method of manufacturing a low noise transmission gear according to claim 1, wherein: the gear disc is characterized in that a shaft hole is formed in the center of the gear disc, and a key groove is formed in the inner side of the shaft hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011100900.5A CN112065953B (en) | 2020-10-15 | 2020-10-15 | Low-noise transmission gear and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011100900.5A CN112065953B (en) | 2020-10-15 | 2020-10-15 | Low-noise transmission gear and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112065953A CN112065953A (en) | 2020-12-11 |
| CN112065953B true CN112065953B (en) | 2021-10-15 |
Family
ID=73655553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011100900.5A Active CN112065953B (en) | 2020-10-15 | 2020-10-15 | Low-noise transmission gear and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112065953B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1368551A1 (en) * | 1986-08-04 | 1988-01-23 | Предприятие П/Я В-2869 | Cast steel wheel |
| CN201335245Y (en) * | 2009-01-09 | 2009-10-28 | 江阴市燎原锻压有限公司 | Forging gear blank |
| CN206112008U (en) * | 2016-10-20 | 2017-04-19 | 江西海峰重工科技有限责任公司 | Gear of making an uproar falls in high strength |
| CN207728837U (en) * | 2017-12-28 | 2018-08-14 | 浙江丰安齿轮股份有限公司 | A kind of low-noise automobile gear |
| EP3640502A1 (en) * | 2018-10-17 | 2020-04-22 | Toyota Jidosha Kabushiki Kaisha | Vehicle gear |
| CN210949750U (en) * | 2019-11-22 | 2020-07-07 | 玉环捷宇机械制造股份有限公司 | Low-noise and easy-heat-dissipation oil pump gear |
| CN211082751U (en) * | 2019-07-11 | 2020-07-24 | 江门市实力多汽配有限公司 | Wiper motor gear |
| CN211117450U (en) * | 2019-12-19 | 2020-07-28 | 唐山百盛机械设备有限公司 | Low-noise transmission gear of electric automobile |
-
2020
- 2020-10-15 CN CN202011100900.5A patent/CN112065953B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1368551A1 (en) * | 1986-08-04 | 1988-01-23 | Предприятие П/Я В-2869 | Cast steel wheel |
| CN201335245Y (en) * | 2009-01-09 | 2009-10-28 | 江阴市燎原锻压有限公司 | Forging gear blank |
| CN206112008U (en) * | 2016-10-20 | 2017-04-19 | 江西海峰重工科技有限责任公司 | Gear of making an uproar falls in high strength |
| CN207728837U (en) * | 2017-12-28 | 2018-08-14 | 浙江丰安齿轮股份有限公司 | A kind of low-noise automobile gear |
| EP3640502A1 (en) * | 2018-10-17 | 2020-04-22 | Toyota Jidosha Kabushiki Kaisha | Vehicle gear |
| CN211082751U (en) * | 2019-07-11 | 2020-07-24 | 江门市实力多汽配有限公司 | Wiper motor gear |
| CN210949750U (en) * | 2019-11-22 | 2020-07-07 | 玉环捷宇机械制造股份有限公司 | Low-noise and easy-heat-dissipation oil pump gear |
| CN211117450U (en) * | 2019-12-19 | 2020-07-28 | 唐山百盛机械设备有限公司 | Low-noise transmission gear of electric automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112065953A (en) | 2020-12-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102179566B (en) | Compound muffling hard alloy saw bit and manufacturing method thereof | |
| CN112065953B (en) | Low-noise transmission gear and manufacturing method thereof | |
| CN106862649B (en) | A kind of high-precision disc rolling shearing blade and its manufacturing method | |
| US4221639A (en) | Aluminium alloy cylinder and manufacturing method thereof | |
| BRPI0713887A2 (en) | torque transmission device, such as fixed ball homokinetic joints, acting as opposite track joints | |
| KR20060060064A (en) | Method for working nut screw for ball screw | |
| CN104802324A (en) | Drilling device of spherical jade | |
| CN108035875B (en) | A kind of pump Al-alloy casing and its processing method | |
| CN109366374B (en) | Electroplating CBN grinding wheel inner cooling device based on 3D printing technology and inner cooling method thereof | |
| CN108890384B (en) | Numerically-controlled machine tool guide rail protective cover and manufacturing method thereof | |
| JP2016148428A (en) | Rolling shaft and method of manufacturing the same | |
| CN218494136U (en) | Flexible gear for assembling harmonic reducer | |
| CN110778594A (en) | Spline transmission shaft and processing technology thereof | |
| CN216642765U (en) | Transmission inner shaft of gear box | |
| CN204647222U (en) | A kind of automobile high-pressure service pump sprocket wheel | |
| CN219547012U (en) | Quenching device | |
| CN216398986U (en) | Convenient to use's grinding device is used in copper sheathing processing | |
| JP3645710B2 (en) | Manufacturing method of spline hub | |
| CN210739307U (en) | Anti-fracture gear blank for automobile | |
| JP2007113675A (en) | Worm gear | |
| CN109630463B (en) | Noise reduction wind wheel for integrated cooker and manufacturing method thereof | |
| CN216458114U (en) | Anticorrosive dive mixer blade for sewage treatment | |
| CN218799401U (en) | Eight-edge round nose tungsten steel milling cutter | |
| CN211975816U (en) | Synchronous belt pulley of automobile engine | |
| US5104744A (en) | Spacer for an essentially cylindrical tool and process for its production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A low noise transmission gear and its manufacturing method Effective date of registration: 20230620 Granted publication date: 20211015 Pledgee: Agricultural Bank of China Limited by Share Ltd. Xinchang county subbranch Pledgor: XINCHANG COUNTY JINYING GEAR BOX CO.,LTD. Registration number: Y2023980044782 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |