CN116951007A - Shrinkage die for tapered roller bearing assembly and assembly method thereof - Google Patents
Shrinkage die for tapered roller bearing assembly and assembly method thereof Download PDFInfo
- Publication number
- CN116951007A CN116951007A CN202311014986.3A CN202311014986A CN116951007A CN 116951007 A CN116951007 A CN 116951007A CN 202311014986 A CN202311014986 A CN 202311014986A CN 116951007 A CN116951007 A CN 116951007A
- Authority
- CN
- China
- Prior art keywords
- die
- tapered roller
- retainer
- roller bearing
- upper die
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 23
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 2
- 239000013013 elastic material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000010923 batch production Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
- F16C43/06—Placing rolling bodies in cages or bearings
- F16C43/065—Placing rolling bodies in cages or bearings in cages
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C43/00—Assembling bearings
- F16C43/04—Assembling rolling-contact bearings
- F16C43/06—Placing rolling bodies in cages or bearings
- F16C43/08—Placing rolling bodies in cages or bearings by deforming the cages or the races
- F16C43/083—Placing rolling bodies in cages or bearings by deforming the cages or the races by plastic deformation of the cage
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- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/10—Force connections, e.g. clamping
- F16C2226/12—Force connections, e.g. clamping by press-fit, e.g. plug-in
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
- F16C2226/10—Force connections, e.g. clamping
- F16C2226/14—Force connections, e.g. clamping by shrink fit, i.e. heating and shrinking part to allow assembly
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a shrinkage die for assembling a tapered roller bearing and an assembling method thereof, wherein the die comprises an upper die, a female die arranged below the upper die, a positioning shaft and a retainer to be assembled, the female die is provided with a middle cavity matched with the diameter of the lower end of the positioning shaft, and the lower end of the positioning shaft is sleeved with a spring and clamped in the middle cavity of the female die; the upper end is sleeved in the upper die, and the top is not contacted; a pocket is also arranged at the top of the middle cavity of the female die; the die is reasonable in design, the tapered roller and the inner ring are not contacted with the die, so that the roller and the inner ring are not damaged by pressing, the nut is designed to limit, and the tapered roller and the inner ring can be processed in batches by once adjusting in place, so that the normal work and the rotation flexibility of the bearing are ensured; the operation is simple, the operator can rapidly complete the assembly process, the production efficiency is high, the labor intensity of the operator is reduced, the product quality is ensured, the production efficiency is greatly improved, the great economic effect is achieved, and the production requirement is met.
Description
Technical Field
The invention belongs to the technical field of tapered roller bearing assembly, and particularly relates to a shrinkage die for tapered roller bearing assembly and an assembly method thereof.
Background
The existing tapered roller bearing assembly technology is characterized in that firstly, rollers are assembled in pockets of a retainer, then an inner ring is put in the pockets, and when the tapered roller bearing assembly technology is used for small-batch production, a manual method is adopted, so that the labor capacity is high, and the rollers are difficult to assemble; in addition, because the rollers of the tapered roller bearing, the outer ring, the inner ring roller way and the retainer pocket are tapered surfaces with certain taper angles, when the rollers are assembled, the rollers fall down to the inner diameter and the outer diameter of the retainer at will, and operators often have trouble in consideration of the conditions.
Disclosure of Invention
In order to solve the technical problems, the invention provides the shrinkage die for assembling the tapered roller bearing and the assembling method thereof, the tapered roller and the inner ring are not contacted with the die, damage to the roller and the inner ring is avoided, the nut is limited, and the nut is adjusted in place at one time, so that batch processing is realized, and the normal work and the rotation flexibility of the bearing are ensured.
The shrinkage die for assembling the tapered roller bearing comprises an upper die, a female die arranged below the upper die, a positioning shaft and a retainer to be assembled, wherein the female die is provided with a middle cavity matched with the diameter of the lower end of the positioning shaft, and the lower end of the positioning shaft is sleeved with a spring and clamped in the middle cavity of the female die; the upper end is sleeved in the upper die, and the top is not contacted; the top of the middle cavity of the female die is also provided with a pocket.
Further, the upper die is provided with a cavity, and the diameter of the cavity is matched with the diameter of the upper end of the positioning shaft.
Further, the bottom of the upper die is provided with an inclined plane which is contacted with the inclined plane at the lower part of the retainer; the middle section of the upper die is also provided with a nut, and the nut penetrates through the upper die and the positioning shaft and is arranged at the middle section of the upper die.
Further, oblique rib surfaces with an inclined angle are arranged between the pockets, and are in contact with ribs between the pockets of the retainer.
Further, the upper die is made of elastic materials.
Further, the retainer is stamped by a low-carbon steel plate.
An assembling method for a tapered roller bearing, the tapered roller bearing including a tapered roller to be assembled, an inner ring to be assembled, a cage to be assembled, the assembling method for a tapered roller bearing including:
a: the base, the positioning shaft and the roller groove are sequentially installed and fixed and placed on a platform;
b: loading the bearing inner ring and the retainer, and enabling the rollers to enter the retainer pocket holes along the inclined surfaces of the dies;
c: after the rollers are assembled, an outer ring of the bearing is sleeved;
d: after the roller is installed, placing a retainer shrinkage die on a workbench, adjusting a press machine to form, and placing an inner ring with the roller installed and a retainer assembly into a female die;
e: the upper die is sleeved into the positioning shaft, so that the upper die is pressed to the end face of the retainer, and the roller, the retainer and the bearing inner ring are combined into a inseparable flexible whole.
Further, the roller grooves may be provided as shims.
Further, the roller groove may be provided as a positioning sleeve.
According to the shrinkage die for assembling the tapered roller bearing and the assembling method thereof, the tapered roller and the inner ring are not contacted with the die, so that the roller and the inner ring are not damaged by pressing, the nut is designed to limit, and the nut can be processed in batches after being adjusted in place once, so that the normal work and the rotation flexibility of the bearing are ensured; the operation is simple, the operator can rapidly complete the assembly process, the production efficiency is high, the labor intensity of the operator is reduced, the product quality is ensured, the production efficiency is greatly improved, the great economic effect is achieved, and the production requirement is met.
Drawings
The invention is described in further detail below with reference to the accompanying drawings.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the assembly of the cage and bearing of the present invention;
the figure shows: 1-female die, 2-upper die, 3-locating shaft, 4-nut, 5-bearing inner ring, 6-spring, 7-retainer and 8-roller.
Detailed Description
In order to further illustrate the inventive concept, the present invention will be described in further detail below with reference to the drawings and by means of specific examples, which are given by way of illustration only and are not to be construed as limiting the scope of the invention. All techniques implemented based on the teachings of the present invention are intended to be within the scope of the invention.
Example 1
An assembling method for a tapered roller bearing, as shown in fig. 1: the device comprises a female die 1, wherein the female die 1 is provided with a middle cavity matched with the diameter of the lower end of a positioning shaft 3; the top of the middle cavity is provided with a pocket for rolling beads, so that a certain gap is reserved between the tapered roller 8 and the female die 1; oblique rib surfaces inclined at a certain angle are reserved between roller pockets of the female die 1 and are in contact with ribs between pockets of the retainer 7; the lower part of the upper die 2 of the shrinkage die is provided with an inclined plane which is contacted with the inclined plane of the lower part of the retainer 7; the nut 4 is designed to limit, and is adjusted in place once, when the retainer 7 is compressed, the upper die 2 is pressed towards the end face of the retainer 7 by the pressure of a press machine, and then the ribs of the retainer 7 are forced to deform inwards by the inclined rib faces of the female die 1, so that the purpose of contracting the retainer 7 is achieved; the positioning shaft 3 is clamped into the middle cavity, a gasket is arranged at the middle upper part of the positioning shaft 3, and the bottom end is connected with a spring 6; after the installation, the retainer 7 is sleeved on the positioning shaft 3, the bearing inner ring 5 is installed, then the tapered roller 8 is installed, the roller 8 enters the pocket hole of the retainer 7 along the inclined plane of the die, a plurality of rollers 8 are supported by gaskets and the inclined plane together, the roller 8 can be quickly installed in the pocket hole of the retainer 7, the bearing inner ring 5 and the retainer 7 assembly with the installed rollers are placed in the female die 1, the upper die 2 is pressed towards the end face of the retainer 7, and the bearing assembly process is completed.
Example 2
An assembling method for a tapered roller bearing, as shown in fig. 1: the female die 1, the positioning shaft 3 and the positioning sleeve are sequentially installed, placed on a platform, then the bearing inner ring 5 and the retainer 7 are assembled, and then the roller is assembled twice: firstly, 2 rollers are arranged at the 24 DEG position of the roller 8, and then 7-R rollers are arranged for 9 grains; and secondly, lifting the locating sleeve and rotating the interval of one roller, wherein the interval is provided with a die inclined plane and 8-R support, the tapered rollers 8 are arranged in pockets of the retainer 7 and do not fall off randomly, the rest 6 tapered rollers 8 are arranged, then the assembly of the bearing inner ring 5 and the retainer 7 is put into the female die 1, so that the upper die 2 is pressed towards the end face of the retainer 7, and the bearing assembly process is completed.
According to the shrinkage die for tapered roller bearing assembly and the assembly method thereof, the tapered rollers and the inner ring are not contacted with the die, so that the rollers 8 and the bearing inner ring 5 are not damaged by pressure, the nut 4 is designed to limit, and the shrinkage die can be processed in batches after being adjusted in place once, so that the normal work and the rotation flexibility of the bearing are ensured; the operation is simple, the operator can rapidly complete the assembly process, the production efficiency is high, the labor intensity of the operator is reduced, the product quality is ensured, the production efficiency is greatly improved, the great economic effect is achieved, and the production requirement is met.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The utility model provides a shrink mould for tapered roller bearing assembly, includes mould (2), sets up die (1) in last mould (2) below, locating shaft (3), remains holder (7) of waiting to assemble, its characterized in that: the female die (1) is provided with a middle cavity matched with the diameter of the lower end of the positioning shaft (3), the lower end of the positioning shaft (3) is sleeved with a spring (6), and the spring is clamped in the middle cavity of the female die (1); the upper end is sleeved in the upper die (2), and the top is contacted; the top of the middle cavity of the female die (1) is also provided with a pocket.
2. A shrink mold for tapered roller bearing assembly as claimed in claim 1, wherein: the upper die (2) is provided with a cavity, and the diameter of the cavity is matched with the diameter of the upper end of the positioning shaft (3).
3. A shrink mold for tapered roller bearing assembly as claimed in claim 2, wherein: the bottom of the upper die (2) is provided with an inclined plane which is contacted with the inclined plane at the lower part of the retainer (7); the middle section of the upper die (2) is also provided with a nut (4), and the nut (4) penetrates through the upper die (2) and the positioning shaft (3) to be arranged at the middle section of the upper die (2).
4. A shrink mold for tapered roller bearing assembly as claimed in claim 1, wherein: oblique rib surfaces with oblique angles are arranged between the pockets and are in contact with ribs between the pockets of the retainer (7).
5. A shrink mold for tapered roller bearing assembly as claimed in claim 1, wherein: the upper die (2) is made of elastic materials.
6. A shrink mold for tapered roller bearing assembly as claimed in claim 1, wherein: the retainer (7) is stamped by a low-carbon steel plate.
7. An assembly method for a tapered roller bearing, characterized by: bearing method of a tapered roller bearing comprising a tapered roller (8) to be assembled, an inner ring (5) to be assembled, a cage (7) to be assembled, performed with a shrink mold for assembly of the tapered roller bearing as claimed in any one of claims 1 to 6, the assembly method for a tapered roller bearing comprising:
a: the base, the positioning shaft (3) and the roller groove are sequentially installed and fixed and are placed on a platform;
b: the bearing inner ring (5) and the retainer (7) are arranged, and the rollers (8) enter the pocket holes of the retainer (7) along the inclined surfaces of the dies;
c: after the rollers (8) are installed, the rollers are installed into the outer ring of the bearing;
d: after the roller is assembled, placing a shrinkage die of a retainer (7) on a workbench, adjusting a press machine to form, and placing a bearing inner ring (5) with the roller assembled and a retainer (7) assembly into a female die (1);
e: the upper die (2) is sleeved into the positioning shaft (3), so that the upper die (2) is pressed towards the end face of the retainer, and the roller (8), the retainer (7) and the bearing inner ring (5) are combined into a non-separable flexible whole.
8. The assembling method for a tapered roller bearing as claimed in claim 7, wherein: the roller grooves may be provided as shims.
9. The assembling method for a tapered roller bearing as claimed in claim 7, wherein: the roller groove may be provided as a locating sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311014986.3A CN116951007A (en) | 2023-08-14 | 2023-08-14 | Shrinkage die for tapered roller bearing assembly and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311014986.3A CN116951007A (en) | 2023-08-14 | 2023-08-14 | Shrinkage die for tapered roller bearing assembly and assembly method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116951007A true CN116951007A (en) | 2023-10-27 |
Family
ID=88447491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311014986.3A Pending CN116951007A (en) | 2023-08-14 | 2023-08-14 | Shrinkage die for tapered roller bearing assembly and assembly method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116951007A (en) |
-
2023
- 2023-08-14 CN CN202311014986.3A patent/CN116951007A/en active Pending
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