CN209830147U - Rolling device for three-row cylindrical roller bearing ring forge piece - Google Patents
Rolling device for three-row cylindrical roller bearing ring forge piece Download PDFInfo
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- CN209830147U CN209830147U CN201920489753.1U CN201920489753U CN209830147U CN 209830147 U CN209830147 U CN 209830147U CN 201920489753 U CN201920489753 U CN 201920489753U CN 209830147 U CN209830147 U CN 209830147U
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- ring
- sleeve
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- mandrel
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- 238000005096 rolling process Methods 0.000 title claims abstract description 39
- 238000005242 forging Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000011949 advanced processing technology Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
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Abstract
The utility model discloses a rolling device for a three-row cylindrical roller bearing ring forge piece, which comprises a mandrel of a ring rolling machine, wherein an assembled mould assembly is arranged on the mandrel, the assembled mould assembly comprises a sleeve sleeved outside the mandrel, a step part which is integrally connected with the sleeve is arranged at the position which is close to the lower end in the circumferential direction of the sleeve, a bottom support ring sleeved outside the sleeve is arranged above the step part, a mould is arranged above the bottom support ring, the mould is sleeved on the sleeve, an upper support ring is arranged at the upper end of the mould, the upper support ring is sleeved outside the sleeve, a gasket is arranged above the upper support ring, a locking nut is arranged at the top of the gasket, and an external thread is arranged in the circumferential direction of the upper part of the sleeve. The production cost is reduced, the assembly and the disassembly are convenient, and the production efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of the forging processingequipment, concretely relates to system of rolling of three rows of cylindrical roller bearing ring forgings device.
Background
The bearing is an important part in the modern mechanical equipment, and the main function of the bearing is to support a mechanical rotating body, reduce the friction coefficient in the movement process of the mechanical rotating body and ensure the rotation precision of the mechanical rotating body. At present, the types of bearings are various, and different types of bearings can be selected according to different use occasions, wherein the three-row cylindrical roller bearing is a bearing capable of bearing the combined action of radial load, axial load and overturning moment, and is widely applied to slewing devices of machines such as cranes, metallurgy, excavation, buildings, ports, ships and the like. The bearing capacity of the three-row cylindrical roller bearing is improved in the height direction of the bearing, and various bearings are respectively formed by different roller paths and rollers, so that the diameter of the bearing can be greatly reduced under the same stress condition, a main machine is more compact, and the bearing is a turntable bearing with high bearing capacity.
The ring rolling is a plastic forming process which reduces the wall thickness of the ring, enlarges the diameter and deforms the section profile by means of the ring rolling machine, compared with the integral die forging, the ring rolling method has the obvious advantages of greatly reducing the equipment tonnage and investment, having small vibration impact, saving energy and materials, having low production cost and the like, and is an advanced processing technology for seamless ring bearing rings, gear rings, flange rings, train wheels, wheel hubs, gas turbine rings and other various ring pieces.
At present, in the process of rolling a ferrule, different dies need to be installed on a mandrel of a ring rolling machine due to different types of ferrules, the existing dies are of an integrated structure, the structure is heavy, a large amount of working time needs to be spent for replacing the dies when different types of ferrules are machined, accidents are easy to happen due to the fact that the dies are heavy in weight, and after the dies are damaged, the dies are scrapped due to the integral characteristics of the dies, the cost is increased, and the production efficiency of the bearing ferrules is reduced.
Disclosure of Invention
The utility model discloses a solve above-mentioned technical problem, provide a device of rolling of three rows of cylindrical roller bearing ring forgings, can be with the design of the mould of rolling for split type structure, effectually avoided the mould to take place to lead to whole condemned phenomenon after damaging, reduced manufacturing cost to can be convenient for assemble and dismantle, be favorable to production efficiency's improvement.
The utility model adopts the technical proposal that: a rolling device for a three-row cylindrical roller bearing ring forge piece comprises a mandrel of a ring rolling machine, wherein an assembled die assembly is mounted on the mandrel and comprises a sleeve sleeved outside the mandrel, a step part integrally connected with the sleeve is arranged at a position, close to the lower end, of the circumferential direction of the sleeve, a bottom support ring sleeved outside the sleeve is arranged above the step part, a die is arranged above the bottom support ring, the die is sleeved on the sleeve, an upper support ring is arranged at the upper end of the die, the upper support ring is sleeved outside the sleeve, a gasket is mounted above the upper support ring, a locking nut is arranged at the top of the gasket, external threads are arranged on the circumferential direction of the upper portion of the sleeve, and the locking nut is in threaded; the circumference outside of the mould is provided with an annular sunken part sunken towards the centre of the mould.
The die is characterized by further comprising a ring blank which is in contact with the outer diameter of the die, the outer diameter of the ring blank is driven by a driving roller of a ring rolling machine, and guide rollers which play a role in guiding are arranged on the two sides of the driving roller.
And the other end of the ring blank is provided with two axial conical rollers which are arranged on the ring rolling machine and are respectively arranged at the upper side and the lower side of the ring blank.
The outer diameters of the upper supporting ring and the bottom supporting ring are equal, and the maximum outer diameter of the die is smaller than that of the upper supporting ring.
When the ring rolling machine works, the ring blank is arranged between the driving roller and the mandrel, the ring blank is positioned between the upper support ring and the lower support ring, the ring rolling machine is started, the driving roller drives the ring blank to rotate, the inner diameter of the ring blank is rolled by using the die, the inner diameter of the ring blank is gradually increased, and the shape of the inner wall of the ring blank corresponds to that of the outer wall of the die; meanwhile, the thickness of the ring blank is gradually reduced by the axial conical roller until the ring blank reaches the size requirement and then stops working; when another sleeve is required to be rolled, the locking nut is loosened until the locking nut is disassembled, the washer, the upper support ring and the die are disassembled in sequence, the new die is replaced, the upper support ring, the washer and the locking nut are installed again, and therefore the purpose of replacing the die can be achieved, and the device is convenient and fast.
The assembled die assembly comprises a sleeve sleeved outside the mandrel, and a step part integrally connected with the sleeve is arranged at the position, close to the lower end, of the circumference of the sleeve; the purpose of this is: the sleeve is used as an installation carrier, so that the damage to the mandrel caused by the direct installation of the die, the upper support ring and the bottom support ring on the mandrel is avoided, the whole assembly type die assembly can be conveniently disassembled and installed, and the step part is used for limiting the downward movement of the part sleeved on the sleeve, so that the purpose of positioning is achieved.
A bottom support ring sleeved outside the sleeve is arranged above the step part, a mold is arranged above the bottom support ring and sleeved on the sleeve, an upper support ring is arranged at the upper end of the mold and sleeved outside the sleeve; the purpose of this is: the upper support ring and the bottom support ring can be utilized to limit the ring blank, which is beneficial to improving the rolling quality of workpieces.
A washer is arranged above the upper support ring, a locking nut is arranged at the top of the washer, external threads are circumferentially arranged on the upper part of the sleeve, and the locking nut is in threaded connection with the external threads of the sleeve; the purpose of this is: the die is used for locking the die, and the stability of the workpiece in the rolling process is improved.
An annular sunken part sunken towards the center of the mould is arranged outside the circumference of the mould; the purpose of this is: the bearing ring can be matched with the inner diameter shape of the ring of the three-row cylindrical roller bearing, can be formed at one time during rolling processing, replaces the traditional processing mode of turning and grinding, and is beneficial to improving the working efficiency.
The utility model has the advantages that: the utility model has the advantages of simple structure and reasonable design, can be with the design of rolling mould for split type structure, effectually avoided the mould to take place to lead to whole condemned phenomenon after damaging, reduced manufacturing cost to can be convenient for assemble and dismantle, be favorable to production efficiency's improvement.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a view of the ring blank processing structure of the present invention.
The labels in the figure are: 1. a mandrel; 2. locking the nut; 3. a gasket; 4. an upper support ring; 5. a mold; 6. a bottom support ring; 7. a sleeve; 8. a drive roller; 9. a guide roller; 10. ring blank; 11. and (4) axial conical rollers.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in the figure, the rolling device for the three-row cylindrical roller bearing ring forge piece comprises a mandrel 1 of a ring rolling machine, wherein an assembly type die 5 assembly is installed on the mandrel 1, the assembly type die 5 assembly comprises a sleeve 7 sleeved outside the mandrel 1, a step part integrally connected with the sleeve 7 is arranged at a position, close to the lower end, of the sleeve 7 in the circumferential direction, a bottom support ring 6 sleeved outside the sleeve 7 is arranged above the step part, a die 5 is arranged above the bottom support ring 6, the die 5 is sleeved on the sleeve 7, an upper support ring 4 is arranged at the upper end of the die 5, the upper support ring 4 is sleeved outside the sleeve 7, a gasket 3 is installed above the upper support ring 4, a locking nut 2 is arranged at the top of the gasket 3, external threads are arranged on the upper portion of the sleeve 7 in the circumferential direction; the outer portion of the circumference of the mold 5 is provided with an annular recessed portion recessed toward the center of the mold 5.
The ring rolling machine is characterized by further comprising a ring blank 10 which is in contact with the outer diameter of the die 5, the outer diameter of the ring blank 10 is driven by a driving roller 8 of the ring rolling machine, and guide rollers 9 which play a role in guiding are arranged on two sides of the driving roller 8.
The other end of the ring blank 10 is provided with two axial conical rollers 11 arranged on the ring rolling machine, and the two axial conical rollers 11 are respectively arranged at the upper side and the lower side of the ring blank 10.
The outer diameters of the upper support ring 4 and the bottom support ring 6 are equal, and the maximum outer diameter of the die 5 is smaller than that of the upper support ring 4, so that the workpiece is prevented from moving along the axial direction of the mandrel 1 in the process of rolling the workpiece, and the rolling quality of the workpiece is improved.
When the ring rolling machine works, the ring blank 10 is arranged between the driving roller 8 and the mandrel 1, the ring blank 10 is positioned between the upper support ring 4 and the lower support ring, the ring rolling machine is started, the driving roller 8 drives the ring blank 10 to rotate, the inner diameter of the ring blank 10 is rolled by the mold 5, the inner diameter of the ring blank 10 is gradually increased, and meanwhile, the shape of the inner wall of the ring blank 10 corresponds to that of the outer wall of the mold 5; meanwhile, the thickness of the ring blank 10 is gradually reduced by the axial conical roller 11 until the ring blank 10 meets the size requirement and then stops working; when another sleeve 7 needs to be rolled, the locking nut 2 is loosened until the locking nut is disassembled, the washer 3, the upper support ring 4 and the die 5 are disassembled in sequence, the new die 5 is replaced, the upper support ring 4, the washer 3 and the locking nut 2 are installed again, and therefore the purpose of replacing the die 5 can be achieved, and the method is convenient and fast.
Claims (4)
1. The utility model provides a device of making by rolling of three rows of cylindrical roller bearing ring forgings which characterized in that: the device comprises a mandrel of a ring rolling machine, wherein an assembled die assembly is arranged on the mandrel, the assembled die assembly comprises a sleeve sleeved outside the mandrel, a step part integrally connected with the sleeve is arranged at a position, close to the lower end, of the circumferential direction of the sleeve, a bottom support ring sleeved outside the sleeve is arranged above the step part, a die is arranged above the bottom support ring, the die is sleeved on the sleeve, an upper support ring is arranged at the upper end of the die, the upper support ring is sleeved outside the sleeve, a gasket is arranged above the upper support ring, a locking nut is arranged at the top of the gasket, external threads are arranged on the circumferential direction of the upper part of the sleeve, and; the circumference outside of the mould is provided with an annular sunken part sunken towards the centre of the mould.
2. The rolling device of a three-row cylindrical roller bearing ring forging according to claim 1, characterized in that: the ring rolling machine is characterized by further comprising a ring blank which is in contact with the outer diameter of the die, the outer diameter of the ring blank is driven by a driving roller of the ring rolling machine, and guide rollers which play a role in guiding are arranged on the two sides of the driving roller.
3. The rolling device of a three-row cylindrical roller bearing ring forging according to claim 2, characterized in that: the other end of the ring blank is provided with two axial conical rollers which are arranged on the ring rolling machine and are respectively arranged at the upper side and the lower side of the ring blank.
4. The rolling device of a three-row cylindrical roller bearing ring forging according to claim 1, characterized in that: the outer diameters of the upper supporting ring and the bottom supporting ring are equal, and the maximum outer diameter size of the die is smaller than that of the upper supporting ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920489753.1U CN209830147U (en) | 2019-04-12 | 2019-04-12 | Rolling device for three-row cylindrical roller bearing ring forge piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920489753.1U CN209830147U (en) | 2019-04-12 | 2019-04-12 | Rolling device for three-row cylindrical roller bearing ring forge piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209830147U true CN209830147U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920489753.1U Active CN209830147U (en) | 2019-04-12 | 2019-04-12 | Rolling device for three-row cylindrical roller bearing ring forge piece |
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| Country | Link |
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| CN (1) | CN209830147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024795A (en) * | 2020-09-25 | 2020-12-04 | 洛阳Lyc轴承有限公司 | Profiling grinding and expanding method and device for inner diameter of large annular forging |
-
2019
- 2019-04-12 CN CN201920489753.1U patent/CN209830147U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024795A (en) * | 2020-09-25 | 2020-12-04 | 洛阳Lyc轴承有限公司 | Profiling grinding and expanding method and device for inner diameter of large annular forging |
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