CN116423211A - Planet row assembly assembling method - Google Patents
Planet row assembly assembling method Download PDFInfo
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- CN116423211A CN116423211A CN202310686116.4A CN202310686116A CN116423211A CN 116423211 A CN116423211 A CN 116423211A CN 202310686116 A CN202310686116 A CN 202310686116A CN 116423211 A CN116423211 A CN 116423211A
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- 230000006698 induction Effects 0.000 claims abstract description 61
- 230000008569 process Effects 0.000 claims description 60
- 230000000712 assembly Effects 0.000 claims description 8
- 238000000429 assembly Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 14
- 230000007246 mechanism Effects 0.000 description 8
- 229910052802 copper Inorganic materials 0.000 description 7
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 241000227287 Elliottia pyroliflora Species 0.000 description 3
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- 239000000428 dust Substances 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
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- 238000010923 batch production Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
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- 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
- B23P21/00—Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The invention relates to the technical field of speed changers, in particular to a method for assembling a planet row assembly, wherein the planet row assembly at least comprises a planet carrier and an induction coil assembly; the planet carrier is provided with a plurality of outer riveting parts, and clamping grooves are formed between the outer riveting parts and the upper end face; the plurality of outer riveting parts are arranged at intervals in the circumferential direction of the planet carrier, and a mounting groove is formed between the two outer riveting parts; the upper end of the induction coil assembly is provided with a riveting table, the riveting table is provided with an inner riveting part, and the inner riveting part is of a concave structure; when the induction coil assembly and the planet carrier are assembled, the riveting table of the induction coil assembly corresponds to the mounting groove of the planet carrier, and the induction coil assembly is rotated to enable the riveting table to enter the clamping groove; then, riveting the induction coil assembly and the planet carrier, namely, firstly, riveting the corresponding part of the outer riveting part and the inner riveting part, and then, riveting the overlapping part of the outer riveting part and the riveting table; the two-step riveting operation can realize the stable and reliable connection of the induction coil assembly and the planet carrier.
Description
Technical Field
The invention relates to the technical field of transmissions, in particular to a planet row assembly assembling method.
Background
The planetary row assembly is an important transmission component in the transmission and comprises a planetary carrier welding assembly, a planetary wheel, a thrust washer, a needle bearing, a planetary wheel shaft and an induction coil assembly. The existing planet carrier is assembled with the induction coil assembly, and the induction coil assembly is pressed to a limiting position and then riveted. The traditional riveting mode is that riveting knives uniformly distributed in the circumferential direction extrude the planet carrier along the axial direction, so that materials of the planet carrier, which are higher than the induction coil assembly, are turned outwards, the deformation of the riveting position is small, the riveting position is unstable, and the induction coil assembly is easy to separate.
Disclosure of Invention
The invention aims to solve the technical problem of providing a planet row assembly assembling method, which overcomes the defects in the prior art, improves the reliability of assembling a planet carrier and an induction assembly and ensures the normal use of a transmission.
In order to solve the technical problems, the technical scheme of the invention is as follows: the planet row assembly assembling method is used for realizing the assembly of the planet row assembly, and the planet row assembly at least comprises a planet carrier and an induction coil assembly;
an annular boss is arranged on the upper end face of the planet carrier, and a plurality of outer riveting parts are arranged on the outer circumferential surface of the boss; a clamping groove is formed between the outer riveting part and the upper end surface of the planet carrier; the plurality of outer riveting parts are arranged at intervals in the circumferential direction of the planet carrier, and a mounting groove is formed between the two outer riveting parts;
the upper end of the induction coil assembly is provided with a riveting table extending radially towards the inner side of the induction coil assembly, and the riveting table is adapted to the clamping groove; the riveting table is provided with a plurality of inner riveting parts, and the inner riveting parts are of a concave structure;
when the induction coil assembly and the planet carrier are assembled,
the riveting table of the induction coil assembly corresponds to the mounting groove of the planet carrier, and after the induction coil assembly is attached to the upper end face of the planet carrier, the induction coil assembly is rotated to enable the riveting table to enter the clamping groove;
and then riveting the induction coil assembly and the planet carrier, namely, firstly, riveting the positions of the outer riveting part and the inner riveting part, and then, riveting the overlapping part of the outer riveting part and the riveting table.
Preferably, the deformation amount generated by the riveting of the outer riveting part and the inner riveting part is larger than the deformation amount generated by the riveting of the outer riveting part and the riveting table.
As a preferable technical scheme, the planet row assembly further comprises a planet wheel assembly, wherein the planet wheel assembly comprises a planet wheel, a planet wheel shaft, a needle bearing and two thrust washers; before the induction coil assembly and the planet carrier are assembled, the planet wheel assembly and the planet carrier are assembled firstly, and the method comprises the steps of pre-assembling the planet wheel assembly and assembling a planet wheel shaft;
the step of preassembling the planetary gear assemblies comprises sequentially completing the preassembling of a plurality of groups of planetary gear assemblies, when each group of planetary gear assemblies are preassembled,
mounting the thrust washer, needle bearing and planet wheel to the planet carrier;
positioning and fixing the thrust washer, the needle roller bearing, the planet wheel and the planet carrier through the process pin; the upper part of the process pin is provided with a telescopic upper limit structure, and after the process pin is installed in place, the upper limit structure is clamped at a planet wheel shaft installation hole of the planet carrier.
As the preferable technical scheme, in the step of preassembling the planetary gear assembly, after the assembly of the process pin is completed, the planetary gear, the thrust washer and the needle bearing assembly are detected and confirmed to be free from neglected loading and error loading.
As the preferable technical scheme, when detecting whether the needle roller bearing is neglected to be assembled, thrust is applied to the outer side of the planet wheel, the displacement of the planet wheel is detected and obtained, and whether the needle roller bearing is neglected to be assembled or not is determined.
As a preferable technical scheme, the planetary axle assembling step comprises the steps of press-fitting the planetary axle and riveting the planetary axle;
the step of press-fitting the planetary wheel shaft comprises
And the planetary wheel shafts are pressed and assembled to the planetary carrier from top to bottom, and in the process of pressing and assembling the planetary wheel shafts, the process pins and the planetary wheel shafts synchronously move until the upper limit structure is separated from the planetary wheel shaft mounting holes at the lower part of the planetary carrier.
As a preferred technical scheme, the step of riveting the planetary wheel shaft comprises the following steps of
Rotating the planet carrier to sequentially complete riveting of a plurality of planet wheel shafts; when each planetary wheel shaft is riveted, the upper end face and the lower end face of the planetary frame and the planetary wheel shaft are riveted at the same time.
As a preferable technical scheme, when the planetary wheel shaft is pressed,
firstly, placing a planet carrier on a rotary positioning disc;
then, placing a planetary wheel shaft positioning disc on the planet carrier, wherein an upper positioning hole on the planetary wheel shaft positioning disc is matched with the upper end part of the process pin for positioning;
then placing the planetary wheel shaft in the upper positioning hole, wherein the planetary wheel shaft is positioned on the upper side of the process pin, and the end surfaces of the planetary wheel shaft and the process pin are tightly attached;
and rotating the rotary positioning disc to sequentially finish the press fitting of the planetary wheel shafts.
As the preferable technical scheme, the planet carrier and the rotary positioning disc are matched and positioned with the lower positioning hole through the lower end of the process pin.
As a preferable technical scheme, before the process pin is inserted, the thrust washer, the needle bearing and the planet axle mounting hole of the planet carrier are confirmed to correspond.
Due to the adoption of the technical scheme, the planet row assembly assembling method has the following advantages:
1) The fixing mode between the induction coil assembly and the planet carrier adopts a collapse riveting mode, and is a brand new connecting mode; the riveting structure of the induction coil assembly and the planet carrier is optimized, and simultaneously, the riveting sequence is combined, so that the induction coil assembly and the planet carrier can be firmly and reliably connected;
2) The riveting table of the induction coil assembly is rotated into the clamping groove of the planet carrier, so that riveting can be directly performed, one press-fitting process is saved, and the process is simplified;
3) The deformation produced by riveting the planet carrier is large, the riveting is more reliable and firm, and the circumferential limit can be realized;
4) The induction coil assembly can adopt a stamping processing mode, the planet carrier clamping groove can adopt a turning processing mode, mass production is easy, and cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic structural view of a planetary row assembly;
FIG. 2 is a schematic perspective view of a planet row assembly;
FIG. 3 is a schematic structural view of an induction coil assembly;
FIG. 4 is a schematic structural view of a planet carrier;
fig. 5 is a schematic structural view of a planetary wheel assembly tooling;
FIG. 6 is a schematic view of the structure of a process pin;
FIG. 7 is a schematic structural view of an auxiliary alignment fixture;
FIG. 8 is a schematic diagram of an apparatus for assembling a planetary axle and induction coil assembly with a planet carrier;
fig. 9 is a schematic diagram of an assembled state of the planet carrier and the planet axle positioning disk and the rotary positioning disk.
In the figure:
1-a planet carrier; 2-planet wheels; 3-thrust washers; 4-an induction coil assembly; 5-an oil pocket groove; 6-thrust bearings; 7-planetary axles; 8-copper sleeve; 9-riveting stations; 10-an outer rivet; 11-a rotary table; 12-auxiliary alignment tool; 13-a photographic detection mechanism; 14-a needle bearing detection mechanism; 15-process pins; 16-an upper limit structure; 17-a lower limit structure; 18-a planet wheel shaft press-fitting station; 19-a planet axle riveting station; 20-a copper sleeve press-fitting station; 21-a small stamp riveting station; 22-large stamp riveting stations; 23-rotating a positioning disc; 24-a positioning disk position detection mechanism; 25-needle bearings; 26-an upper end plate; 27-a lower end plate; 28-inner rivet; 29-a planetary axle positioning disc; 30-upper positioning holes; 31-lower locating holes.
Detailed Description
As shown in fig. 1, the planet row assembly includes a planet carrier 1, a planet wheel assembly, an induction coil assembly 4, a copper sleeve 8, a thrust bearing 6, and an oil pocket 5. The connection end of the induction coil assembly 4 and the planet carrier 1 is set to be the upper end, and the end opposite to the upper end is set to be the lower end, so that the assembly method of the planet row assembly is conveniently described.
The planet wheel assembly comprises two thrust washers 3, a planet wheel 2, a planet wheel shaft 7 and a needle bearing 25; the planetary wheel shaft 7 is arranged in the shaft hole of the planetary wheel 2 through the needle bearing 25, and the two thrust washers 3 are respectively positioned at the upper end and the lower end of the planetary wheel 2 and simultaneously blocked at the outer side of the needle bearing 25.
The planet row assembly method comprises the following steps,
first, a copper sleeve is press-fitted to the carrier 1.
Before the planet carrier 1 is assembled, the code scanning confirmation is carried out, so that the wrong assembly is avoided.
Place the planet carrier 1 to the copper sheathing press-fitting station 20, as shown in FIG. 8; pressing the copper sleeve 8 to the planet carrier 1 by using a pressing head; after the copper bush 8 is pressed in place, the copper bush 8 is flush with the planet carrier 1 at one side of the oil pocket groove 5.
The pressure and the stroke of the copper bush 8 are monitored and recorded in the press mounting process, and the planet carrier is subjected to dust collection treatment after press mounting.
The planet wheel assembly and the planet carrier 1 are then assembled, including the planet wheel assembly pre-assembly and the planet axle assembly steps.
When the planetary wheel assembly is preassembled, the planetary carrier 1 is placed on a rotary table 11, as shown in fig. 5; the planet carrier 1 is manually turned around, and sets of planet wheel assemblies are preassembled to the planet carrier 1 in sequence.
When each set of planet assemblies is preassembled to the planet carrier 1,
the thrust washer 3, the needle bearing 25 and the planet wheel 2 are stacked and installed in the planet carrier 1, and the installation sequence is from bottom to top, namely the thrust washer 3, the needle bearing 25, the planet wheel 2 and the thrust washer 3.
Then, it was confirmed that the thrust washer 3, the needle bearing 25, and the planetary wheel shaft mounting hole of the carrier 1 correspond. Specifically, the auxiliary alignment tool 12 ensures that the thrust washer 3, the needle bearing 25 and the planet axle mounting hole of the planet carrier 1 correspond. Specifically, the small end of the auxiliary alignment tool 12 is provided with a conical surface and a cylindrical positioning surface connected with the conical surface, when the auxiliary alignment tool 12 is inserted into the planet carrier 1, the thrust washer 3, the needle bearing 25 and the thrust washer 3 from top to bottom, the conical surface can guide the auxiliary alignment tool 12 to be inserted into the thrust washer 3, the needle bearing 25 and the planet axle mounting hole of the planet carrier 1, and the cylindrical positioning surface can ensure that each needle of the thrust washer 3, the needle bearing 25 and the planet carrier 1 is free from offset, so that the needle bearing 25 and the thrust washer 3 are prevented from being damaged when the process pin 15 is inserted.
After the auxiliary alignment tool 12 is pulled out, the process pin 15 can be inserted from top to bottom, and the thrust washer 3, the needle roller bearing 25 and the planet wheel 2 are pre-positioned. After the process pin 15 is inserted in place, both the upper and lower ends of the process pin 15 extend out of the planet carrier 1. The process pin 15 is provided with an upper limit structure 16, and the upper limit structure 16 is matched with the upper part of the planet carrier 1 to maintain the positioning and fixing of the thrust washer 3, the needle bearing 25, the planet wheel 2 and the planet carrier 1.
Further, a lower limit structure 17 is further arranged on the process pin 15, and the upper limit structure 16 and the lower limit structure 17 are respectively positioned at the upper part and the lower part of the process pin 15, and are matched together to complete the reliable connection of the process pin 15 and the planet carrier 1.
After the process pin 15 is installed in place, the upper limit structure 16 and the lower limit structure 17 can be respectively positioned at the upper side and the lower side of the planet carrier 1, namely, the upper limit structure 16 is positioned above the upper end plate 26 and is attached to the upper end surface, and the lower limit structure 17 is positioned below the lower end plate 27 and is attached to the lower end surface; the upper limit structure 16 and the lower limit structure 17 can be respectively clamped on the hole walls of the planetary wheel shaft mounting holes of the upper end plate 26 and the lower end plate 27, and both the two modes can meet the limit requirements of the planetary wheel assembly and the planetary carrier 1.
The upper limit structure 16 and the lower limit structure 17 can both adopt limit balls, and the limit balls are installed in the installation holes of the process pins 15 through elastic pieces and can extend or retract relative to the process pins 15.
After the assembly of the process pin 15 is completed, the assembly of the planet wheel 2, the thrust washer 3 and the needle bearing 25 is detected and confirmed to be free from neglected loading and error loading. In particular, the method comprises the steps of,
the planetary gear 2 and the thrust washer 3 are confirmed to have no neglected loading and no wrong loading by the photographic detection mechanism 13.
When detecting whether the needle roller bearing 25 is neglected to be assembled, thrust is applied to the outer side of the planet wheel 2, and the displacement of the planet wheel 2 in the process is detected and obtained; when the needle roller bearing 25 is arranged in the planet wheel 2, the planet wheel 2 cannot be pushed due to the limit of the process pin 15 and the needle roller bearing 25, and the displacement meets the design requirement; when the needle bearing 25 is neglected to be arranged in the planet wheel 2, a gap is reserved between the process pin 15 and the shaft hole of the planet wheel 2, so that the planet wheel 2 can be pushed away from a set position to generate a certain displacement, and the needle bearing 25 is neglected to be arranged if the design requirement is not met.
For example, whether or not the needle bearing is missing is detected by the needle bearing detecting mechanism 14. The needle bearing detection mechanism 14 has a detection head and two proximity switches for determining the position of the detection head; during detection, the detection head is pulled to approach and contact the planet wheel 2, the detection head is attached to the outer side of the planet wheel 2, then thrust is continuously applied, the two proximity switches detect the positions of the detection head, and whether the needle bearing neglected loading risk exists is determined; if the detection head pushes the planet wheel 2, determining that the needle bearing 25 is not installed; if the detection head does not push the planetary gear 2, it is indicated that the needle bearing 25 is not missed.
After all planetary gear components on the planetary carrier 1 are preassembled, planetary gear shaft assembly is carried out. The planetary axle assembly includes press fitting the planetary axle 7 and riveting the planetary axle 7.
When the planetary wheel shaft 7 is press-fitted,
Then, the planetary wheel shaft positioning plate 29 is placed on the planet carrier 1, and the upper positioning holes 30 on the planetary wheel shaft positioning plate 29 are matched and positioned with the upper end parts of the process pins 15.
Then the planetary wheel shaft 7 is placed in the upper positioning hole 30, the planetary wheel shaft 7 is positioned on the upper side of the process pin 15, and the end surfaces of the planetary wheel shaft 7 and the process pin are tightly attached; the depth of the upper locating hole 30 is larger than the length of the process pin 15 inserted into the upper locating hole 30, so that three planetary wheel shafts 7 can be placed on the upper side of the process pin 15, and the feeding and locating of the planetary wheel shafts 7 are realized.
The planetary wheel axles 7 have an outward lubrication groove, which extends in the radial direction of the planetary wheel axles 7 and can be used for identifying the mounting direction during assembly. For example, when the planetary axles 7 are placed in the positioning holes, the lubrication grooves face outward.
The rotary positioning disc 23 moves to the planet wheel shaft press-fitting station 18, 3 planet wheel shafts 7 are sequentially pressed in, the process pins 15 are ejected, and the process pins 15 are recovered from the bottom of the equipment.
In the pressing process of the planetary wheel shaft 7, as the process pin 15 is provided with the upper limit structure 16, the process pin 15 does not directly fall off in the descending process, but is pushed by the planetary wheel shaft 7 until the upper limit structure 16 is separated from the planet carrier 1; in the process, the planetary wheel shaft 7 and the process pin 15 synchronously descend, so that the positioning of the needle bearing 25, the thrust washer 3, the planet wheel 2 and the planet carrier 1 is facilitated, and the phenomenon that the planetary wheel shaft 7 or the needle bearing 25 or the thrust washer 3 is crushed in the descending process of the planetary wheel shaft 7 is avoided.
When the planet wheel shafts are riveted, the rotary positioning disc 23 moves to the planet wheel shaft riveting station 19, the rotary positioning disc 23 rotates to rivet 3 planet wheel shafts 7 in sequence, and simultaneously, the upper end and the lower end of the planet carrier 1 and the planet wheel shafts 7 are riveted.
In the riveting process, the riveting force, the stroke and the times are monitored and recorded, and dust is collected after riveting.
After the planetary wheel shaft is assembled, the planetary wheel assembly and the planetary frame 1 are assembled to form a stable connection whole, and then the induction coil assembly 4, the oil pocket groove 5 and the thrust bearing 6 are installed.
Compared with the prior art, the inventor optimizes the structure and the assembly process of the planet carrier 1 and the induction coil assembly 4 so as to realize reliable and stable connection of the induction coil assembly 4 and the planet carrier 1. In particular to a special-shaped ceramic tile,
first, an annular boss is formed on the upper end surface of the carrier 1, and a plurality of outer caulking portions 10 are provided on the outer circumferential surface of the boss, and the outer caulking portions 10 and the carrier 1 are preferably integrally formed. As shown in fig. 4, a clamping groove is formed between the outer caulking portion 10 and the upper end surface of the carrier 1; the plurality of outer caulking portions 10 are provided at intervals in the circumferential direction of the carrier 1, for example, the carrier 1 is provided with three outer caulking portions 10, and the three outer caulking portions 10 are provided uniformly at intervals; forming a mounting groove between the two outer caulking portions 10; that is, in the circumferential direction of the carrier 1, the engaging grooves are provided at intervals from the mounting grooves.
The upper end of the induction coil assembly 4 is provided with a riveting table 9, and the riveting table 9 is matched with the positions, the shapes and the number of the clamping grooves; the caulking table 9 radially extends toward the inside of the induction coil assembly 4, and the caulking table 9 has a plurality of inner caulking portions 28, and the inner caulking portions 28 have a concave structure, such as grooves, holes, or the like. For example, as shown in fig. 3, the inner caulking portions 28 are provided at the middle and both end portions of the caulking table 9, that is, three inner caulking portions 28 are provided for each caulking table 9.
The structure is more reasonable, the connection strength of the induction coil assembly 4 and the planet carrier 1 can be improved, the production cost can be reduced, the riveting table 9 can be formed in a stamping mode, the clamping groove can be formed in a turning mode, and batch production is easy.
When the induction coil assembly 4 and the carrier 1 are assembled,
the riveting table 9 of the induction coil assembly 4 corresponds to the mounting groove of the planet carrier 1, and the induction coil assembly 4 is attached to the upper end face of the planet carrier 1; then, rotating the induction coil assembly 4 to enable the riveting table 9 to enter the clamping groove; the installation is in place, and no dislocation exists; the two sides of the riveting table 9 of the induction coil assembly 4 do not exceed the clamping grooves of the planet carrier 1.
Then, riveting the induction coil assembly 4 and the planet carrier 1; firstly, riveting is completed at the corresponding positions of the outer riveting part 10 and the inner riveting part 28, and then riveting is performed at the overlapping position of the outer riveting part 10 and the riveting table 9; the deformation amount generated by the riveting of the outer caulking portion 10 and the inner caulking portion 28 is larger than the deformation amount generated by the riveting of the outer caulking portion 10 and the caulking table 9. After the outer caulking portion 10 is caulked with the inner caulking portion 28, the outer caulking portion 10 of the planet carrier 1 is deformed by extrusion, the material of the outer caulking portion 10 between two adjacent caulking positions is arched after the stress is released, and then the outer caulking portion 10 is caulked with the caulking stand 9 for reinforcement, so that the material of the outer caulking portion 10 is bonded with the material of the caulking stand 9 of the induction coil assembly 4.
As shown in fig. 8, the riveting of the outer rivet 10 and the inner rivet 28 is performed at the large stamp riveting station 22; the local extrusion of the outer riveting part 10 of the planet carrier 1 generates larger deformation and is clamped into the inner riveting part 28, so that the two parts are firmly connected in stroke; simultaneously, the planet carrier 1 and the induction coil assembly 4 are also pre-positioned, so that the position of the induction coil assembly 4 is limited, and relative rotation is prevented. The riveting of the outer riveting part 10 and the riveting table 9 is performed at the small-print riveting station 21, so that the whole riveting and fixing of the outer riveting part 10 and the riveting table 9 are completed, and the riveting strength of the induction coil assembly 4 and the planet carrier 1 is enhanced.
For example, at the large stamp riveting station 22, the riveting blade may have riveting points that are consistent in number and position with the inner riveting portions 28 of the induction coil assembly 4, and the riveting blade may perform one rivet. At the small stamp riveting station 21, after the riveting is completed once by the riveting knife, the rotary positioning disc 23 needs to be rotated for a set angle, and then the next riveting is performed until all riveting points are completed. The deformation amount generated by riveting at the small stamp riveting station 21 is relatively small, but the riveting action surface is larger; the two riveting operations are combined with each other, so that the induction coil assembly 4 and the planet carrier 1 are reliably and fixedly connected.
When the oil pocket is installed, the oil pocket 5 is installed to the planet carrier 1, no neglected loading and installation in place are guaranteed, and the gap between the oil pocket 5 and the planet carrier meets the design requirement.
When the thrust bearing is installed, the thrust bearing 6 is installed to the carrier 1; ensuring that the thrust bearing 6 is in place, free of neglected loading and reverse loading.
In the process, the rotary positioning disc 23 is positioned and fed back for control through the positioning disc position detection mechanism 24 when moving among the planet axle press-fitting station 18, the planet axle riveting station 19, the copper sleeve press-fitting station 20, the small seal riveting station 21 and the large seal riveting station 22. The positioning disk position detecting mechanism 24 has a plurality of sets of correlation laser sensors for detecting whether the planet carrier 1 is provided with a piece or not, whether the induction coil assembly 4 is provided with a piece or not, and whether the induction coil assembly 4 is placed horizontally or not.
The foregoing has shown and described the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The planetary row assembly assembling method is used for realizing the assembly of the planetary row assembly, and the planetary row assembly at least comprises a planetary frame (1) and an induction coil assembly (4); the method is characterized in that:
an annular boss is arranged on the upper end face of the planet carrier (1), and a plurality of outer riveting parts (10) are arranged on the outer circumferential surface of the boss; a clamping groove is formed between the outer riveting part (10) and the upper end surface of the planet carrier (1); a plurality of outer caulking portions (10) arranged at intervals in the circumferential direction of the carrier (1), and a mounting groove is formed between the two outer caulking portions (10);
the upper end of the induction coil assembly (4) is provided with a riveting table (9) extending radially towards the inner side of the induction coil assembly, and the riveting table (9) is matched with the clamping groove; the riveting table (9) is provided with a plurality of inner riveting parts (28), and the inner riveting parts (28) are of a concave structure;
when the induction coil assembly (4) and the planet carrier (1) are assembled,
the riveting table (9) of the induction coil assembly (4) corresponds to the mounting groove of the planet carrier (1), and after the induction coil assembly (4) is attached to the upper end face of the planet carrier (1), the induction coil assembly (4) is rotated to enable the riveting table (9) to enter the clamping groove;
and then the induction coil assembly (4) and the planet carrier (1) are riveted, the positions of the outer riveting part (10) and the inner riveting part (28) are riveted, and the overlapping position of the outer riveting part (10) and the riveting table (9) is riveted.
2. The planet row assembly member assembly method of claim 1, wherein: the deformation amount generated by the riveting of the outer riveting part (10) and the inner riveting part (28) is larger than the deformation amount generated by the riveting of the outer riveting part (10) and the riveting table (9).
3. The planet row assembly member assembly method of claim 1, wherein: the planet row assembly further comprises a planet wheel assembly, wherein the planet wheel assembly comprises a planet wheel (2), a planet wheel shaft (7), a needle bearing (25) and two thrust washers (3); before the induction coil assembly (4) and the planet carrier (1) are assembled, the planet wheel assembly and the planet carrier (1) are assembled firstly, and the method comprises the steps of pre-assembling the planet wheel assembly and assembling a planet wheel shaft;
the step of preassembling the planetary gear assemblies comprises sequentially completing the preassembling of a plurality of groups of planetary gear assemblies, when each group of planetary gear assemblies are preassembled,
mounting the thrust washer (3), the needle bearing (25) and the planet wheel (2) to the planet carrier (1);
positioning and fixing the thrust washer (3), the needle bearing (25), the planet wheel (2) and the planet carrier (1) through the process pin (15); the upper part of the process pin (15) is provided with a telescopic upper limit structure (16), and after the process pin (15) is installed in place, the upper limit structure (16) is clamped at a planet wheel shaft installation hole of the planet carrier (1).
4. A method of assembling a planetary row assembly as claimed in claim 3, wherein: in the step of pre-assembling the planetary wheel assembly, after the assembly of the process pin (15) is completed, the planetary wheel (2), the thrust washer (3) and the needle bearing (25) assembly are detected and confirmed to be free of neglected loading and error loading.
5. The planet row assembly member assembly method of claim 4, wherein: when the needle bearing (25) is detected to be neglected, thrust is applied to the outer side of the planet wheel (2), the displacement of the planet wheel (2) is detected and obtained, and whether the needle bearing (25) is neglected is determined.
6. A method of assembling a planetary row assembly as claimed in claim 3, wherein: the planetary wheel shaft assembling step comprises the steps of press-fitting a planetary wheel shaft (7) and riveting the planetary wheel shaft (7);
the step of press-fitting the planetary wheel shaft (7) comprises
And (3) pressing the planetary wheel shafts (7) to the planet carrier (1) from top to bottom, and synchronously moving the process pins (15) and the planetary wheel shafts (7) in the process of pressing the planetary wheel shafts (7) until the upper limit structure (16) is separated from the planetary wheel shaft mounting holes at the lower part of the planet carrier (1).
7. The planet row assembly member assembly method of claim 6, wherein: the step of riveting the planetary wheel shaft (7) comprises
Rotating the planet carrier (1) to sequentially finish riveting a plurality of planet wheel shafts (7); and when each planetary wheel shaft (7) is riveted, the upper end face and the lower end face of the planetary carrier (1) and the planetary wheel shafts (7) are riveted at the same time.
8. The planet row assembly member assembly method of claim 6, wherein: when the planetary wheel shaft (7) is pressed,
firstly, placing a planet carrier (1) on a rotary positioning disc (23);
then, a planetary wheel shaft positioning disc (29) is placed on the planet carrier (1), and an upper positioning hole (30) on the planetary wheel shaft positioning disc (29) is matched and positioned with the upper end part of the process pin (15);
then the planetary wheel shaft (7) is placed in the upper positioning hole (30), the planetary wheel shaft (7) is positioned on the upper side of the process pin (15) and the end surfaces of the planetary wheel shaft and the process pin are tightly attached;
and rotating the rotary positioning disc (23) to sequentially finish the press fitting of the planetary wheel shafts (7).
9. The planet row assembly member assembly method of claim 6, wherein: the planet carrier (1) and the rotary positioning disc (23) are matched and positioned with the lower positioning hole (31) through the lower end of the process pin (15).
10. A method of assembling a planetary row assembly as claimed in claim 3, wherein: before the process pin (15) is inserted, the correspondence of the thrust washer (3), the needle bearing (25) and the planet axle mounting hole of the planet carrier (1) is confirmed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116690190A (en) * | 2023-08-04 | 2023-09-05 | 盛瑞传动股份有限公司 | Planet row assembling process |
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| CN116690190B (en) * | 2023-08-04 | 2023-10-31 | 盛瑞传动股份有限公司 | Planet row assembling process |
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| Publication number | Publication date |
|---|---|
| CN116423211B (en) | 2023-10-03 |
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