CN217814544U - Slewing bearing for bottle blowing equipment - Google Patents
Slewing bearing for bottle blowing equipment Download PDFInfo
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- CN217814544U CN217814544U CN202222087918.7U CN202222087918U CN217814544U CN 217814544 U CN217814544 U CN 217814544U CN 202222087918 U CN202222087918 U CN 202222087918U CN 217814544 U CN217814544 U CN 217814544U
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- slewing bearing
- ring
- rotary support
- bottle blowing
- blowing equipment
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Abstract
The utility model discloses a slewing bearing for bottle blowing equipment, include: the slewing bearing outer gear ring is an annular piece; the outer side surface of the inner ring of the slewing bearing and the inner side surface of the outer gear ring of the slewing bearing are provided with crossed roller raceways in a vertically corresponding manner; the rollers are arranged in the roller paths; the rollers are separated by the integral isolating ring; through the structural improvement of the slewing bearing for the original touch screen equipment and the optimization of the material and parameters of each component, the slewing bearing can be enabled to be at a high speed, the axial radial runout of the inner ring of the slewing bearing and the outer gear ring of the slewing bearing is less than or equal to 0.03mm, the tooth runout is less than or equal to 0.10mm, a negative clearance (the axial radial clearance is less than or equal to 0 mm) can be always kept under the condition of heavy-load rotation, the rotation flexibility is kept, the service life of the slewing bearing is prolonged, and the maintenance period of the slewing bearing is prolonged.
Description
Technical Field
The utility model relates to a slewing bearing technical field, concretely relates to slewing bearing for bottle blowing equipment.
Background
The slewing bearing is used as an important basic element of engineering machinery and construction machinery, and is an important force transmission element which is necessary for machinery which needs to perform relative rotation between two parts and needs to bear axial force, radial force and overturning moment. It is widely used in the real industry and is called "joint of machine". The slewing bearing is divided into the following parts according to the structural style: single-row ball type, three-row column type, cross roller type, double-row eight-point contact ball type, ball column combination type and the like. The device is widely applied to automobile cranes, port cranes, railway cranes, ship cranes, container cranes, metallurgical cranes, excavators, filling machines, navigation instruments, and high, fine and advanced fields such as CT (computed tomography) standing wave therapeutic instruments, radar antenna bases, missile launcher, tanks, robots, rotary restaurants and the like.
The common slewing bearing is generally applied to low-speed heavy-load occasions, such as the fields of excavators, cranes, wind power generation, solar power generation and the like, and the slewing bearing has little hunting under the high-speed working condition. The running speed of the slewing bearing is below 50 m/min, and if the linear speed exceeds 150 m/min, the design concept and the application field are completely different.
The rotary support is used on the bottle blowing equipment, the linear velocity is required to be more than 150 m/min, the noise is less than 70dB, the service life is 10 ten thousand hours, the positioning accuracy is 0.10mm, and most of the existing rotary supports can not be specially used for the bottle blowing equipment. Based on the current situation, the invention provides a rotary support for bottle blowing equipment.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a slewing bearing for bottle blowing equipment solves following technical problem:
(1) Most of the existing slewing bearings are not suitable for bottle blowing equipment for special use.
The purpose of the utility model can be realized by the following technical scheme:
a slewing bearing for a bottle blowing device comprises:
the slewing bearing outer gear ring is an annular piece;
the outer side surface of the slewing bearing inner ring and the inner side surface of the slewing bearing outer gear ring are provided with crossed roller raceways in a vertical corresponding mode;
the rollers are arranged in the roller paths; and
and the rollers are separated by the integral isolating ring.
As a further aspect of the present invention: the blank materials of the outer gear ring and the inner ring of the slewing bearing are 50CrMo, the hardness of the roller raceway is HRC58-64, and the hardening and tempering hardness of the blank is HB300-350.
As a further aspect of the present invention: and each component of the slewing bearing is a negative clearance after being assembled, and the roundness of the roller raceway is 0.02mm.
As a further aspect of the present invention: the slewing bearing adopts a labyrinth seal structure.
As a further aspect of the present invention: the roughness Ra of the roller raceway is 0.2-0.6um.
The utility model has the advantages that:
the utility model discloses in, through the structural improvement to former slewing bearing for touch screen equipment to the preferred of each subassembly material and parameter of cooperation, can make slewing bearing is under high-speed, and the axle radial of slewing bearing inner circle and slewing bearing outer ring gear is beated equal less than or equal to 0.03mm, and the tooth is jumped less than or equal to 0.10mm, can be under heavy load pivoted condition, remains the burden clearance throughout (axle radial clearance less than or equal to 0 mm), keeps simultaneously rotating in a flexible way, increases slewing bearing's life increases slewing bearing's maintenance cycle.
Drawings
The present invention will be further described 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 expanded plane structure of the isolating ring of the present invention;
fig. 3 is a schematic side sectional structure view of the middle isolation ring of the present invention.
In the figure: 1. an outer gear ring of the slewing bearing; 2. a roller; 3. an isolating ring; 4. and the inner ring of the slewing bearing.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a rotary support for bottle blowing equipment, comprising:
the slewing bearing outer gear ring 1 is an annular piece;
the slewing bearing inner ring 4 is an annular piece, and the outer side surface of the slewing bearing inner ring 4 and the inner side surface of the slewing bearing outer gear ring 1 are provided with crossed roller raceways in a vertical corresponding mode;
the rollers 2 are arranged in the roller paths; and
and a plurality of rollers 2 are separated by the integral isolating ring 3.
The isolating ring 3 is made of the Lu bronze, the isolating block for the common slewing bearing is generally made of the Q235 material, the abrasion resistance of the isolating ring 3 is effectively ensured through improvement of the isolating ring 3 material, and orderly operation of the roller 2 in the roller path is ensured.
The machining steps of the slewing bearing outer gear ring 1 are as follows: rough turning of an outer circle, a plane and an inner hole → rough machining of a raceway, rough turning of the outer circle, the plane and the inner hole → quenching of the raceway → tempering of the turning of a tooth top circle → rough machining of a gear → quenching of the gear → tempering of the gear → finish turning of the outer circle, the plane and the inner hole (allowance for positioning size and mounting surface) → hole machining → grinding of the tooth → finish turning of the raceway (simultaneous machining of the plane and the positioning).
The machining steps of the slewing bearing inner ring 4 are as follows: roughly turning an outer circle, a plane and an inner hole → processing a plugging hole → installing and plugging → drilling a taper pin hole → assembling a taper pin → roughly processing a roller way → quenching the roller way → tempering the roller way → finely turning the plane of the outer circle and the inner hole (the positioning size and the mounting surface are left), → processing a hole → drilling and oil filling hole → finely turning the roller way → finely grinding the roller way (the plane and the positioning are processed together).
In one aspect of this embodiment, the slewing bearing employs crossed roller raceways to replace the ball raceways commonly used in the market today to increase the load bearing and fatigue of the slewing bearing; meanwhile, the adopted isolating ring 3 replaces an isolating block which is conventionally used in the slewing bearing, so that the plurality of rollers 2 in the raceway of the slewing bearing can rotate equidistantly and reliably in a high-speed rotating process, and the problem of high noise caused by collision between the rollers 2 and the isolating block is solved.
In practical application, through structural improvement of the rotary support for the original touch screen device and matching with optimization of materials and parameters of components, the rotary support can be enabled to run at a high speed, axial radial runout of the inner ring 4 of the rotary support and the outer gear ring 1 of the rotary support is less than or equal to 0.03mm, and tooth runout is less than or equal to 0.10mm, so that a negative clearance (the axial radial clearance is less than or equal to 0 mm) can be always kept under the condition of heavy-load rotation, rotation flexibility is kept, the service life of the rotary support is prolonged, and the maintenance period of the rotary support is prolonged.
As shown in FIG. 1, as a preferred embodiment of the present invention, the blank material of the slewing bearing outer gear ring 1 and the slewing bearing inner ring 4 is 50CrMo, the hardness of the roller raceway is HRC58-64, and the blank hardened and tempered hardness is HB300-350.
In one case of the embodiment, the blank materials of the outer ring gear 1 and the inner ring 4 of the slewing bearing are 50CrMo instead of 50Mn, S48C and 42CrMo which are common materials of the slewing bearing, so as to improve the wear resistance of the slewing bearing raceway; the hardness of the raceway of the common slewing bearing is HRC55-62, so that the service life of the raceway is prolonged, and the hardness of the raceway is improved to HRC58-64; the quenching and tempering hardness of the blank is improved from HB207-262 of a common slewing bearing blank to HB300-350, and the integral strength of the slewing bearing can be improved.
As shown in fig. 1, as a preferred embodiment of the present invention, the components of the slewing bearing are assembled to form a negative clearance, and the roundness of the roller raceway is 0.02mm.
In one aspect of the present embodiment, the axial radial clearance between the outer ring gear 1 of the slewing bearing and the inner ring 4 of the slewing bearing is less than or equal to 0mm so as to maintain the flexible rotation of the slewing bearing; and the roundness of the roller path is improved to 0.02mm, compared with the roundness of the roller path of a common slewing bearing, the roller path is adopted as the last step for processing, and the processing is divided into 2-3 times, so that the stress deformation of each processing is eliminated.
As shown in fig. 1, as a preferred embodiment of the present invention, the slewing bearing adopts a labyrinth seal structure.
In one aspect of this embodiment, the labyrinth seal is a seal with a plurality of tortuous cells between the rotating part and the fixed part to reduce leakage, and is an ideal labyrinth flow passage model, in which a plurality of annular seal teeth are arranged in sequence around the rotating shaft, a series of cut-off gaps and expansion cavities are formed between the teeth, and the sealed medium generates a throttling effect when passing through the gaps of the tortuous labyrinth to achieve the purpose of leakage prevention.
In practical application, the slewing bearing adopts a labyrinth seal structure to replace nitrile rubber of a common slewing bearing, so that abrasion caused by sealing strips is avoided, and the sealing reliability at high rotating speed is ensured.
As shown in fig. 1, the roughness Ra of the roller raceway is 0.2-0.6um as a preferred embodiment of the present invention.
In practical application, compared with the conventional roughness of the roller path with Ra =0.8-1.6um, the friction coefficient of the ball path in the application is further reduced, the friction between the roller 2 and the steel ball path is effectively reduced, and the heat generation of the roller path is further reduced.
As shown in fig. 1, as a preferred embodiment of the present invention, the gear precision grade on the slewing bearing is 7 grades, the gear precision grade of the common slewing bearing is 9-11 grades, the gear rough machining is performed by adopting a machining method, then the gear quenching treatment is performed, and then the gear grinding is performed, the tooth surface roughness Ra is 0.8um, so that the generation of noise during high-speed rotation can be reduced.
As shown in fig. 1-3, as a preferred embodiment of the present invention, the last step of processing tool uses an electromagnetic chuck to hold a non-mounting surface, so as to ensure that the raceway, the mounting hole surface, the outer circle or the positioning spigot are processed with the same reference, and one clamping process is performed to complete all the required surface processing. For the outer gear ring, the circle correcting reference is tooth runout, and then the raceway, the mounting surface, the inner hole and the outer circle are processed, so that the axial runout and the radial runout are less than or equal to 0.03mm, and the tooth runout is less than or equal to 0.10mm.
At present, a common slewing bearing processing raceway is turned instead of ground, and in order to ensure that the slewing bearing of the embodiment is a negative clearance after being assembled, the slewing bearing steel ball raceway of the type adopts grinding processing; when grinding the roller path, programming a special program; as the working conditions have very high requirements on axial runout, radial runout and tooth runout of the slewing bearing, a magnetic sucker is adopted during processing, and the outer circle or inner hole positioning and the plane are turned after the raceway processing is finished, so that the raceway, the plane, the outer circle or the inner hole share the same reference, and the relative axial runout is less than or equal to 0.03mm and the tooth runout is less than or equal to 0.10mm.
The utility model discloses a theory of operation: the utility model provides an in the above-mentioned embodiment, a slewing bearing for bottle blowing equipment is through structural improvement to former slewing bearing for touch screen equipment to the preferred of each subassembly material and parameter of cooperation can make slewing bearing is under high speed, and slewing bearing inner circle 4 and slewing bearing outer ring gear 1's axle radial runout all is less than or equal to 0.03mm, and the tooth is jumped and is less than or equal to 0.10mm, can be under heavy load pivoted condition, keeps negative clearance (axle radial clearance less than or equal to 0 mm) all the time, keeps simultaneously rotating in a flexible way, increases slewing bearing's life increases slewing bearing's maintenance cycle.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. The equivalent changes and improvements made according to the application scope of the present invention should be still included in the patent coverage of the present invention.
Claims (5)
1. A slewing bearing for bottle blowing equipment is characterized by comprising:
the slewing bearing outer gear ring (1) is an annular piece;
the slewing bearing inner ring (4) is an annular piece, and crossed roller raceways are correspondingly formed on the outer side surface of the slewing bearing inner ring (4) and the inner side surface of the slewing bearing outer gear ring (1) up and down;
the rollers (2), a plurality of the rollers (2) are all arranged in the roller raceway; and
and the rollers (2) are separated by the integral isolating ring (3).
2. The rotary support for the bottle blowing equipment according to claim 1, characterized in that the blank materials of the rotary support outer gear ring (1) and the rotary support inner ring (4) adopt 50CrMo, the hardness of the roller raceway is HRC58-64, and the blank hardened and tempered hardness is HB300-350.
3. The rotary support for the bottle blowing equipment according to claim 2, wherein the components of the rotary support are negative clearance after being assembled, and the roundness of the roller raceway is 0.02mm.
4. The rotary support for the bottle blowing equipment according to claim 1, wherein the rotary support adopts a labyrinth sealing structure.
5. The rotary support for bottle blowing equipment according to claim 1, wherein the roughness Ra of the roller raceway is 0.2-0.6um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222087918.7U CN217814544U (en) | 2022-08-09 | 2022-08-09 | Slewing bearing for bottle blowing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222087918.7U CN217814544U (en) | 2022-08-09 | 2022-08-09 | Slewing bearing for bottle blowing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217814544U true CN217814544U (en) | 2022-11-15 |
Family
ID=83975183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222087918.7U Active CN217814544U (en) | 2022-08-09 | 2022-08-09 | Slewing bearing for bottle blowing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217814544U (en) |
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2022
- 2022-08-09 CN CN202222087918.7U patent/CN217814544U/en active Active
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