CN210160224U - High-strength main shaft structure - Google Patents
High-strength main shaft structure Download PDFInfo
- Publication number
- CN210160224U CN210160224U CN201920495026.6U CN201920495026U CN210160224U CN 210160224 U CN210160224 U CN 210160224U CN 201920495026 U CN201920495026 U CN 201920495026U CN 210160224 U CN210160224 U CN 210160224U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- roller bearing
- push rod
- shell
- cylindrical roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model discloses a high strength main shaft structure, it includes the cavity main shaft, the axle housing, the top shell, the push rod, the elastic component, linear drive device and synchronizing wheel, rationally be equipped with first cylindrical roller bearing on the axle housing, thrust roller bearing and second cylindrical roller bearing cooperate the cavity main shaft, bear radial load through first, effective increase of second cylindrical roller bearing, be suitable for high-speed rotation, can bear the axle that axial load is the main through thrust roller bearing, radial combined load, the friction factor is lower, further promote processing main shaft rotational speed, accelerate machining efficiency, and have the aligning effect, effectively improve the machining precision, strengthened the bearing capacity of whole main shaft structure on the whole, increase of service life; meanwhile, the linear driving device drives the push rod to move downwards so as to realize the material removing function; in addition, the oil cooling pipeline and the water cooling circulation tank are arranged, so that the main shaft can be effectively cooled, the main shaft can work for a long time, the working stability is good, and the wide popularization and application are facilitated.
Description
Technical Field
The utility model relates to a main shaft technical field, concretely relates to use high strength main shaft structure in spinning-lathe.
Background
At present, the spinning technology is generally adopted for cylindrical forming of the hub, on one hand, compared with the traditional casting forming, the common problems in the traditional casting process such as sand holes, shrinkage holes, cracks and the like can not be generated, raw materials can be saved, and the qualification rate of finished products can be improved; on the other hand, the mechanical structure of the hub is more compact, and the strength is higher.
The utility model discloses a publication number "CN 109201836A", entitled "wheel hub spinning machine", which comprises a frame, a main shaft module and a spinning module, wherein the main shaft module comprises a first shaft group and a second shaft group which are vertically arranged on the frame and used for installing wheel hub blanks, the first shaft group, the second shaft group and the wheel hub blanks are coaxial, a horizontal spinning platform is arranged in the middle of the frame, and the spinning module comprises three spinning platforms which are circumferentially distributed around the axis of the wheel hub blanks; the spinning module comprises a base, a guide rail, a tool apron, a longitudinal hydraulic cylinder and a transverse hydraulic cylinder, the guide rail is vertically arranged above the spinning platform, the base is movably arranged on the guide rail, the tool apron is movably arranged on the base and points to the wheel hub blank, the longitudinal hydraulic cylinder is longitudinally connected to the base, and the transverse hydraulic cylinder is fixedly connected to the base and connected with the tool apron. Although the spinning processing can be carried out on the hub blank, the spindle structure is simple, the hub is difficult to detach from the spindle after the spinning processing, the load strength is not ideal, and the service life is short.
SUMMERY OF THE UTILITY MODEL
In view of the above, the utility model aims to provide a structural design is ingenious, reasonable, and load capacity is big, job stabilization nature is good, and has the automatic high strength main shaft structure who takes off the material function.
In order to achieve the above purpose, the utility model provides a technical scheme is: a high-strength main shaft structure comprises a hollow main shaft, a shaft shell, a top shell, a push rod, an elastic component, a linear driving device and a synchronous wheel, wherein a first cylindrical roller bearing, a thrust roller bearing and a second cylindrical roller bearing are sequentially arranged in the shaft shell from top to bottom, the hollow main shaft is arranged on inner rings of the first cylindrical roller bearing, the thrust roller bearing and the second cylindrical roller bearing, the lower end of the hollow main shaft extends out of a bottom cover of the shaft shell to form a mold assembling part, the upper end of the hollow main shaft extends out of a top cover of the shaft shell to form an installing part, the synchronous wheel is sleeved on the installing part, the top shell is arranged on the synchronous wheel, the upper part of a center hole of the hollow main shaft radially increases to form an assembling cavity, the lower end of the center hole radially increases to form an accommodating cavity, the push rod is inserted into the center hole, and the lower end of the push rod extends to the accommodating cavity, the position of the push rod corresponding to the assembly cavity is radially increased to form a step, the upper end of the push rod extends out of the central hole to extend out of the top shell to form a driving part, the driving part is matched with the inner wall of the top shell through a tapered roller bearing, and the linear driving device is arranged on the top shell and can drive the push rod to move downwards.
As an improvement of the utility model, the shaft shell is provided with an oil cooling pipeline.
As an improvement of the utility model, a water-cooling circulation groove is arranged on the axle housing.
As an improvement of the utility model, the outer diameter of the upper part of the hollow main shaft is in a step gradually reduced shape.
As an improvement of the present invention, the elastic member is a disc spring.
As an improvement of the utility model, linear drive is the hydro-cylinder, and this hydro-cylinder sets up the top surface at the top shell perpendicularly, and the piston rod orientation of this hydro-cylinder stretch into the top shell with the drive portion docks mutually.
As an improvement of the utility model, the holding cavity is provided with a wear-resistant sleeve matched with the push rod.
As an improvement of the utility model, the top head part is sleeved with a copper sleeve gland.
As an improvement of the utility model, be equipped with on the cavity main shaft corresponding with the last labyrinth closing cap and the lower labyrinth closing cap of top cap, bottom looks adaptation.
As an improvement of the present invention, the model of the tapered roller bearing is 30326, the model of the first cylindrical roller bearing is NN3040, the model of the thrust roller bearing is 29444E, and the model of the second cylindrical roller bearing is NU2344 EX.
The utility model has the advantages that: the utility model discloses structural design is ingenious, rationally be equipped with first cylindrical roller bearing, thrust roller bearing and second cylindrical roller bearing on the axle housing and cooperate the hollow main shaft, bear radial load through first, second cylindrical roller bearing effective increase, be suitable for high-speed rotation, can bear axial load for main axle, radial combined load through thrust roller bearing, friction factor is lower, further promote processing main shaft rotational speed, accelerate machining efficiency, and have the aligning effect, effectively improve the machining precision, strengthen the bearing capacity of whole main shaft structure on the whole, increase of service life; meanwhile, the linear driving device drives the push rod to move downwards, so that the material removing function can be realized, convenience is brought to processing operation, and time and labor are saved; in addition, the oil cooling pipeline and the water cooling circulation tank are arranged, so that the main shaft can be effectively cooled, the main shaft can work for a long time, the working stability is good, and the wide popularization and application are facilitated.
The present invention will be further explained with reference to the drawings and the embodiments.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the hollow spindle of the present invention.
Fig. 3 is a schematic structural view of the center axle housing of the present invention.
Fig. 4 is a schematic structural diagram of the middle push rod of the present invention.
Detailed Description
Referring to fig. 1 to 4, the present embodiment provides a high-strength spindle structure, which includes a hollow spindle 1, a spindle housing 2, a top housing 3, a push rod 4, an elastic member 5, a linear driving device 6, and a synchronizing wheel 7.
An assembly position 27 for mounting the first cylindrical roller bearing 8, an assembly position 28 for mounting the thrust roller bearing 9 and an assembly position 29 for mounting the second cylindrical roller bearing 10 are sequentially arranged in the shaft housing 2 from top to bottom. The first cylindrical roller bearing 8, the thrust roller bearing 9, and the second cylindrical roller bearing 10 are mounted on the mounting position 27, the mounting position 28, and the mounting position 29, respectively, in this order. The hollow main shaft 1 sequentially penetrates through the first cylindrical roller bearing 8, the thrust roller bearing 9 and the second cylindrical roller bearing 10 and is fixed on the inner rings of the first cylindrical roller bearing 8, the thrust roller bearing 9 and the second cylindrical roller bearing 10. The lower end of the hollow main shaft 1 extends out of the bottom cover 22 of the shaft shell 2 to form a mold assembling part 11, and the mold assembling part 11 is assembled with a hub positioning mold, so that the mounting stability is good.
The upper end of cavity main shaft 1 stretches out from top cap 21 of axle housing 2 and forms installation department 12, synchronizing wheel 7 cover is established on installation department 12, top shell 3 sets up on synchronizing wheel 7, the radial increase in 13 upper portions of centre bore of cavity main shaft 1 forms assembly chamber 131, and the radial increase in 13 lower extremes of this centre bore forms holding chamber 132, push rod 4 inserts centre bore 13, and the lower extreme of this push rod 4 extends to holding chamber 132 and forms top head portion 41, and the radial increase in the position that this push rod 4 corresponds assembly chamber 131 forms step 42, and the upper end of this push rod 4 stretches out centre bore 13 and stretches out and form drive portion 43 in the top shell 3, and this drive portion 43 passes through tapered roller bearing 101 and top shell 3's inner wall looks adaptation.
The tapered roller bearing is preferably 30326, the first cylindrical roller bearing 8 is preferably NN3040, the thrust roller bearing 9 is preferably 29444E, and the second cylindrical roller bearing 10 is preferably NU2344 EX. In other embodiments, the tapered roller bearing, the cylindrical roller bearing and the thrust roller bearing 9 of corresponding models can be selected according to the size of the main shaft structure and the required bearing pressure.
An oil cooling pipeline 25 is arranged on the shaft shell 2, and cooling oil is introduced into the oil cooling pipeline 25 to cool the first cylindrical roller bearing 8, the thrust roller bearing 9, the second cylindrical roller bearing 10 and the hollow main shaft 1. The shaft housing 2 is provided with a water-cooling circulation tank 26, and the entire body can be cooled by injecting cooling water into the water-cooling circulation tank 26, so that the shaft housing can operate for a long time and the service life of the main shaft can be prolonged.
In this embodiment, preferably, the elastic member 5 is a disc spring, which has a large elastic force and a good restoring effect. In other embodiments, the elastic member 5 may also be a cylindrical spring or an elastic rubber column.
Preferably, the outer diameter of the upper part of the hollow main shaft 1 is gradually reduced to form a step matched with the first cylindrical roller bearing 8, and the matching effect is good.
The linear driving device 6 is arranged on the top shell 3 and can drive the push rod 4 to move downwards. In the present embodiment, the linear driving device 6 is preferably a cylinder, which is vertically disposed on the top surface of the top case 3, and the piston rod of the cylinder is connected to the driving portion 43 toward the top case 3. When the piston rod of the oil cylinder extends out, the piston rod can push the driving part 43, so that the push rod 4 integrally descends, and the purpose of material removal is realized. In other embodiments, the linear driving device 6 may also be a cylinder or a linear motor.
The accommodating cavity 132 is provided with the wear-resistant sleeve 102 matched with the push rod 4, so that the service life is effectively prolonged. The copper bush pressing cover 103 is sleeved on the top head portion 41, so that the matching tightness is effectively improved, and the matching effect is good.
An upper labyrinth seal cover 23 and a lower labyrinth seal cover 24 which are correspondingly matched with the top cover 21 and the bottom cover 22 are arranged on the hollow main shaft 1. An upper labyrinth seal cover 23 and a lower labyrinth seal cover 24 are fixedly sleeved on the hollow main shaft 1. The top cover 21 is matched with the upper labyrinth seal cover 23 by adopting a labyrinth seal structure, and the bottom cover 22 is matched with the lower labyrinth seal cover 24 by adopting a labyrinth seal structure. Sealing effect is good, prevents that the foreign matter from getting into, promotes job stabilization nature.
During operation, because rationally be equipped with first cylindrical roller bearing 8 on axle housing 2, thrust roller bearing 9 and second cylindrical roller bearing 10 cooperate hollow main shaft 1, bear radial load through the effective increase of first cylindrical roller bearing 8 and second cylindrical roller bearing 10, be suitable for high-speed rotation, can bear the axle that axial load is given first place to through thrust roller bearing 9, radial joint load, friction factor is lower, further promote processing main shaft rotational speed, accelerate machining efficiency, and have the aligning effect, effectively improve the machining precision, the bearing capacity of whole main shaft structure has been strengthened on the whole, prolonged service life. After the spinning is finished, the linear driving device 6 drives the push rod 4 to move downwards, extend out of the central hole 13 of the hollow main shaft 1 and press against a hub on the hub positioning die, so that the hub is separated from the hub positioning die, the purpose of material removal is realized, and the spinning machine is simple and convenient to operate, and time and labor are saved.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. In addition, although specific terms are used in the present specification, these terms are only used for convenience of description and do not limit the present invention, and the spindle structure having other structures the same as or similar to the spindle structure is within the protection scope of the present invention.
Claims (10)
1. A high-strength main shaft structure is characterized by comprising a hollow main shaft, a shaft shell, a top shell, a push rod, an elastic component, a linear driving device and a synchronous wheel, wherein a first cylindrical roller bearing, a thrust roller bearing and a second cylindrical roller bearing are sequentially arranged in the shaft shell from top to bottom, the hollow main shaft is arranged on inner rings of the first cylindrical roller bearing, the thrust roller bearing and the second cylindrical roller bearing, the lower end of the hollow main shaft extends out of a bottom cover of the shaft shell to form a mold assembling part, the upper end of the hollow main shaft extends out of a top cover of the shaft shell to form an installing part, the synchronous wheel is sleeved on the installing part, the top shell is arranged on the synchronous wheel, the upper part of a center hole of the hollow main shaft is radially enlarged to form an assembling cavity, the lower end of the center hole is radially enlarged to form an accommodating cavity, the push rod is inserted into the center hole, and the lower end of the push rod extends to the accommodating, the position of the push rod corresponding to the assembly cavity is radially increased to form a step, the upper end of the push rod extends out of the central hole to extend out of the top shell to form a driving part, the driving part is matched with the inner wall of the top shell through a tapered roller bearing, and the linear driving device is arranged on the top shell and can drive the push rod to move downwards.
2. The high-strength main shaft structure according to claim 1, wherein: and an oil cooling pipeline is arranged on the shaft shell.
3. The high-strength main shaft structure according to claim 1, wherein: and a water-cooling circulation groove is formed in the shaft shell.
4. The high-strength main shaft structure according to claim 1, wherein: the outer diameter of the upper part of the hollow main shaft is in a step gradually reduced shape.
5. The high-strength main shaft structure according to claim 1, wherein: the elastic component is a disc spring.
6. The high-strength main shaft structure according to claim 1, wherein: the linear driving device is an oil cylinder which is vertically arranged on the top surface of the top shell, and a piston rod of the oil cylinder extends into the top shell towards the direction to be butted with the driving part.
7. The high-strength main shaft structure according to claim 1, wherein: and the accommodating cavity is provided with a wear-resistant sleeve matched with the push rod.
8. The high-strength main shaft structure according to claim 1, wherein: the top head part is sleeved with a copper sleeve gland.
9. The high-strength main shaft structure according to claim 1, wherein: and an upper labyrinth sealing cover and a lower labyrinth sealing cover which are correspondingly matched with the top cover and the bottom cover are arranged on the hollow main shaft.
10. The high-strength main shaft structure according to any one of claims 1 to 9, wherein: the model of the tapered roller bearing is 30326, the model of the first cylindrical roller bearing is NN3040, the model of the thrust roller bearing is 29444E, and the model of the second cylindrical roller bearing is NU2344 EX.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920495026.6U CN210160224U (en) | 2019-04-12 | 2019-04-12 | High-strength main shaft structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920495026.6U CN210160224U (en) | 2019-04-12 | 2019-04-12 | High-strength main shaft structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210160224U true CN210160224U (en) | 2020-03-20 |
Family
ID=69790872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920495026.6U Active CN210160224U (en) | 2019-04-12 | 2019-04-12 | High-strength main shaft structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210160224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909355A (en) * | 2019-04-12 | 2019-06-21 | 广东鼎力旋压装备有限公司 | High-intensitive main axle structure |
| CN112720009A (en) * | 2020-12-25 | 2021-04-30 | 江西鼎力旋压装备有限公司 | Automobile wheel hub anchor clamps with automated inspection function |
-
2019
- 2019-04-12 CN CN201920495026.6U patent/CN210160224U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109909355A (en) * | 2019-04-12 | 2019-06-21 | 广东鼎力旋压装备有限公司 | High-intensitive main axle structure |
| CN109909355B (en) * | 2019-04-12 | 2024-07-23 | 江西鼎力旋压装备有限公司 | High-strength main shaft structure |
| CN112720009A (en) * | 2020-12-25 | 2021-04-30 | 江西鼎力旋压装备有限公司 | Automobile wheel hub anchor clamps with automated inspection function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210160224U (en) | High-strength main shaft structure | |
| CN106425635B (en) | Electric spindle based on dynamic pressure sliding bearing | |
| US7252462B2 (en) | Spindle unit having pressure foot | |
| CN203830743U (en) | Work-piece main shaft device of horizontal gear hobbing machine | |
| CN110076231B (en) | Vertical numerical control three-wheel hub spinning machine | |
| CN210160228U (en) | Vertical numerical control three-wheel hub spinning machine | |
| CN109909355B (en) | High-strength main shaft structure | |
| CN107597284B (en) | A kind of simplification, the rotating drivetrain reconfigured and its interior set cooling water channel | |
| CN111590103A (en) | Frock clamp of car processing motor stator casing tang is exclusively used in | |
| CN219253986U (en) | Core roller and vertical ring rolling machine | |
| CN102430768A (en) | Lathe with auxiliary spindle | |
| CN111015174B (en) | Automatic and rapid copper bush embedding method | |
| CN105108181A (en) | Main shaft assembly of numerical control machine tool | |
| CN210450547U (en) | Seamless gas cylinder necking machine | |
| CN111002012A (en) | Copper sleeve fast inlaying mechanism | |
| CN215144387U (en) | Multi-riveting-rod riveting machine with adjustable riveting rod positions | |
| CN218152352U (en) | Sealing structure for electric hammer | |
| CN216325639U (en) | Vertical driving mechanism for gear mandrel machining | |
| CN210731652U (en) | Full-servo multi-shaft driving tray exchange mechanism | |
| CN209886702U (en) | Movable lathe base | |
| CN216421091U (en) | Rearmounted tailstock lathe thimble structure | |
| CN204194851U (en) | A kind of wheel hub turning power chuck | |
| CN2659948Y (en) | Milling rotor on road milling machine | |
| CN109538571B (en) | Driving device of tyre stripper | |
| CN214463980U (en) | Internal rotation type quick-change chuck for drill rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |