CN220534842U - Large-torque pre-molding driving structure - Google Patents
Large-torque pre-molding driving structure Download PDFInfo
- Publication number
- CN220534842U CN220534842U CN202322127212.3U CN202322127212U CN220534842U CN 220534842 U CN220534842 U CN 220534842U CN 202322127212 U CN202322127212 U CN 202322127212U CN 220534842 U CN220534842 U CN 220534842U
- Authority
- CN
- China
- Prior art keywords
- thrust
- driving structure
- speed reducer
- top shaft
- transmission top
- 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
- 238000000465 moulding Methods 0.000 title claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 51
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims description 5
- 238000005461 lubrication Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 12
- 239000000463 material Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 36
- 238000009434 installation Methods 0.000 description 12
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 229920003023 plastic Polymers 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model discloses a large-torque pre-molding driving structure, and aims to solve the defect that the torque of the existing pre-molding driving structure is not suitable for conveying PVC raw materials. The utility model comprises a thrust seat and an oil motor, wherein a speed reducer is arranged between the thrust seat and the oil motor, a transmission top shaft is arranged in the thrust seat, the speed reducer is connected between the oil motor and the transmission top shaft in series, and the transmission top shaft is connected with a screw rod. In the application, the oil motor and the speed reducer are matched and assembled on the thrust seat to drive the screw rod to rotate for conveying raw materials, so that the material conveying requirement of high torque and low rotation speed can be met, and the pre-molding operation of PVC raw materials with high torque and low rotation speed can be realized.
Description
Technical Field
The utility model relates to the technical field of injection molding, in particular to a large-torque pre-molding driving structure.
Background
The pre-molding is an important link in the injection molding process, and the screw is driven to rotate through the driving structure during pre-molding to realize pre-molding of plastic raw materials, and the driving structure commonly used at present is used for driving the screw to rotate by connecting two oil motors in series on the thrust base, so that the screw is suitable for general plastic products, because the rotating speed required by general plastics is about 60 revolutions, the torque requirement is not very high, but the PVC raw materials need larger torque and the rotating speed requirement is not high, and therefore the original driving structure is not suitable for the PVC raw materials.
Disclosure of Invention
In order to overcome the defects, the utility model provides a large-torque pre-molding driving structure which can realize the pre-molding operation of PVC raw materials with large torque and low rotating speed.
In order to solve the technical problems, the utility model adopts the following technical scheme: a large-torque pre-molding driving structure comprises a thrust seat and an oil motor, wherein a speed reducer is arranged between the thrust seat and the oil motor, a transmission top shaft is arranged in the thrust seat, the speed reducer is connected between the oil motor and the transmission top shaft in series, and the transmission top shaft is connected with a screw rod.
In the application, the oil motor and the speed reducer are matched and assembled on the thrust seat to drive the screw rod to rotate for conveying raw materials, so that the material conveying requirement of high torque and low rotation speed can be realized. According to the oil motor speed reducer, the combination of the speed reducer and the oil motor replaces the serial connection of two oil motors with large displacement, the torque is improved by 3-4 times, the cost of the oil motor and the speed reducer is far less than that of the serial connection of 2 oil motors with large displacement, 15 ten thousand of the oil motor and 4 ten thousand of the speed reducer are less than 15 ten thousand of the oil motor, and the cost is reduced; the structure is simplified: the utility model uses the decelerator to replace one oil motor, thus achieving convenient installation. For the series connection of two oil motors, the flow of the hydraulic oil is reduced by half, the power limit of the servo motor is reduced, the use of one servo motor can be reduced, and the cost is reduced. This application can be more perfect for the former product to PVC raw materials advance.
Preferably, the inner end of the transmission top shaft is provided with a mounting groove, the end part of the output shaft of the speed reducer is sleeved in the mounting groove, and a locking key is arranged between the outer wall of the output shaft of the speed reducer and the side wall of the mounting groove.
The output shaft of the speed reducer is connected with the transmission top shaft through a locking key, and the connection is reliable.
Preferably, the outer end of the transmission top shaft is provided with a transmission groove, one end of the screw rod is inserted into the transmission groove, and a positioning key is arranged between the outer wall of the screw rod and the inner wall of the transmission groove.
The screw rod is connected with the transmission top shaft through a positioning key, and the connection is reliable.
Preferably, the bottom of the transmission groove is connected with a fastening screw which is connected to the end of the output shaft of the speed reducer.
The arrangement of the fastening screw improves the reliability of connection between the transmission top shaft and the output shaft of the speed reducer.
Preferably, a step surface is arranged on the outer wall of the screw, a limiting block is arranged on the pushing seat, and the limiting block is abutted against the step surface.
The limiting block is abutted to the step surface of the screw rod to position the screw rod, so that the screw rod is prevented from being separated from the transmission top shaft.
Preferably, a cylindrical roller bearing and a thrust self-aligning roller bearing are arranged between the transmission top shaft and the thrust seat, the cylindrical roller bearing is arranged close to the screw rod side, and the thrust self-aligning roller bearing is arranged close to the output shaft side of the speed reducer.
The installation of the cylindrical roller bearing and the thrust aligning roller bearing ensures the stable operation of the transmission top shaft and the reliable transmission of power.
Preferably, a positioning ring and a tapered roller bearing are arranged on the outer wall of the output shaft of the speed reducer, and the inner ring of the tapered roller bearing is abutted between the transmission top shaft and the positioning ring.
The installation of the tapered roller bearing ensures the smooth running of the output shaft of the speed reducer.
Preferably, a thrust end cover is arranged on the end surface of the thrust seat, a sealing ring is arranged between the thrust end cover and the thrust seat, and a frameless oil seal is arranged between the thrust end cover and the transmission top shaft.
The thrust end cap achieves reliable sealing of the thrust bearing end.
Preferably, the thrust bearing is connected with the frame, and the speed reducer is arranged on the frame.
The frame supports the speed reducer, so that the stability of the thrust seat is guaranteed, and the speed reducer is safer and more reliable.
Preferably, the thrust seat is provided with an installation cavity, the transmission top shaft is installed in the installation cavity, and the outer wall of the thrust seat is provided with a lubricating oil hole communicated with the installation cavity.
And lubricating liquid is injected into the installation cavity through the lubricating oil hole, so that the lubricating effect of parts in the installation cavity is ensured.
Compared with the prior art, the utility model has the beneficial effects that: the large-torque pre-molding driving structure can realize the pre-molding operation of PVC raw materials with large torque and low rotating speed requirements.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
FIG. 2 is a schematic view of the structure of the oil motor of the present utility model;
FIG. 3 is a schematic view of the structure of the decelerator of the present utility model;
in the figure: 1. the device comprises a thrust seat, 2, an oil motor, 3, a speed reducer, 4, a transmission top shaft, 5, a mounting cavity, 6, a lubricating oil hole, 7, a screw, 8, a mounting groove, 9, a transmission groove, 10, a limiting block, 11, a cylindrical roller bearing, 12, a thrust aligning roller bearing, 13, a convex ring, 14, a positioning ring, 15, a tapered roller bearing, 16, a thrust end cover, 17, a sealing ring, 18, a frameless oil seal, 19, an oil seal pressing plate, 20, a positioning convex ring, 21 and a frame.
Detailed Description
The technical scheme of the utility model is further specifically described by the following specific embodiments with reference to the accompanying drawings:
examples: a large-torque pre-plastic driving structure (see fig. 1-3) comprises a thrust seat 1 and an oil motor 2, wherein a speed reducer 3 is arranged between the thrust seat and the oil motor, a transmission top shaft 4 is arranged in the thrust seat, an installation cavity 5 is arranged on the thrust seat, the transmission top shaft is arranged in the installation cavity, and a lubricating oil hole 6 communicated with the installation cavity is arranged on the outer wall of the thrust seat. The speed reducer is connected in series between the oil motor and the transmission top shaft, and the transmission top shaft is connected with the screw rod 7.
The inner end of the transmission top shaft is provided with a mounting groove 8, the end part of the output shaft of the speed reducer is sleeved in the mounting groove, and a locking key is arranged between the outer wall of the output shaft of the speed reducer and the side wall of the mounting groove. The outer end of the transmission top shaft is provided with a transmission groove 9, one end of the screw rod is inserted into the transmission groove, and a positioning key is arranged between the outer wall of the screw rod and the inner wall of the transmission groove. The bottom of the transmission groove is connected with a fastening screw which is connected to the end part of the output shaft of the speed reducer. The outer wall of the screw is provided with a step surface, the pushing seat is provided with a limiting block 10, and the limiting block is abutted on the step surface.
A gap is arranged between the outer wall of the transmission top shaft and the inner wall of the mounting cavity, a cylindrical roller bearing 11 and a thrust self-aligning roller bearing 12 are arranged between the transmission top shaft and the thrust seat, the cylindrical roller bearing is arranged close to the side of the screw rod, and the thrust self-aligning roller bearing is arranged close to the side of the output shaft of the speed reducer. A convex ring 13 is arranged between the cylindrical roller bearing and the thrust self-aligning roller bearing on the outer wall of the transmission top shaft. The outer wall of the output shaft of the speed reducer is provided with a positioning ring 14 and a tapered roller bearing 15, and the inner ring of the tapered roller bearing is abutted between the transmission top shaft and the positioning ring. The thrust end cover 16 is arranged on the end face of the thrust seat, the sealing ring 17 is arranged between the thrust end cover and the thrust seat, the frameless oil seal 18 is arranged between the thrust end cover and the transmission top shaft, the oil seal pressing plate 19 is arranged on the thrust end cover, and the frameless oil seal is pressed by the oil seal pressing plate. The thrust end cover is provided with a positioning convex ring 20 which is abutted against the end face of the outer ring of the cylindrical roller bearing. The thrust bearing is connected with the frame 21, and the speed reducer is arranged on the frame.
In the application, the oil motor and the speed reducer are matched and assembled on the thrust seat to drive the screw rod to rotate for conveying raw materials, so that the material conveying requirement of high torque and low rotation speed can be realized. According to the oil motor speed reducer, the combination of the speed reducer and the oil motor replaces the serial connection of two oil motors with large displacement, the torque is improved by 3-4 times, the cost of the oil motor and the speed reducer is far less than that of the serial connection of 2 oil motors with large displacement, 15 ten thousand of the oil motor and 4 ten thousand of the speed reducer are less than 15 ten thousand of the oil motor, and the cost is reduced; the structure is simplified: the utility model uses the decelerator to replace one oil motor, thus achieving convenient installation. For the series connection of two oil motors, the flow of the hydraulic oil is reduced by half, the power limit of the servo motor is reduced, the use of one servo motor can be reduced, and the cost is reduced. This application can be more perfect for the former product to PVC raw materials advance.
The above-described embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (10)
1. A large-torque pre-molding driving structure is characterized by comprising a thrust seat and an oil motor, wherein a speed reducer is arranged between the thrust seat and the oil motor, a transmission top shaft is arranged in the thrust seat, the speed reducer is connected between the oil motor and the transmission top shaft in series, and the transmission top shaft is connected with a screw rod.
2. The high-torque pre-molding driving structure according to claim 1, wherein a mounting groove is formed in the inner end of the transmission top shaft, the end portion of the output shaft of the speed reducer is sleeved in the mounting groove, and a locking key is arranged between the outer wall of the output shaft of the speed reducer and the side wall of the mounting groove.
3. The high-torque pre-molding driving structure according to claim 1, wherein a transmission groove is formed in the outer end of the transmission top shaft, one end of the screw is inserted into the transmission groove, and a positioning key is arranged between the outer wall of the screw and the inner wall of the transmission groove.
4. A high torque preform driving structure according to claim 3, wherein the bottom of the driving groove is connected to a fastening screw which is connected to the end of the output shaft of the reduction gear.
5. The large-torque pre-molding driving structure according to claim 1, wherein a step surface is arranged on the outer wall of the screw, a limiting block is arranged on the pushing seat, and the limiting block is abutted against the step surface.
6. The high-torque pre-molding driving structure according to claim 1, wherein a cylindrical roller bearing and a thrust self-aligning roller bearing are arranged between the transmission top shaft and the thrust seat, the cylindrical roller bearing is arranged close to a screw side, and the thrust self-aligning roller bearing is arranged close to an output shaft side of the speed reducer.
7. The high-torque pre-molding driving structure according to claim 1, wherein a positioning ring and a tapered roller bearing are arranged on the outer wall of the output shaft of the speed reducer, and an inner ring of the tapered roller bearing is abutted between the transmission top shaft and the positioning ring.
8. The high-torque pre-molding driving structure according to claim 1, wherein a thrust end cover is arranged on the end face of the thrust seat, a sealing ring is arranged between the thrust end cover and the thrust seat, and a frameless oil seal is arranged between the thrust end cover and the transmission top shaft.
9. A high torque preform driving structure according to any one of claims 1 to 8, wherein the thrust bearing is connected to the frame and the reducer is mounted on the frame.
10. The large torque pre-molding driving structure according to any one of claims 1 to 8, wherein the thrust seat is provided with a mounting cavity, the transmission top shaft is mounted in the mounting cavity, and the outer wall of the thrust seat is provided with a lubrication oil hole communicated with the mounting cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322127212.3U CN220534842U (en) | 2023-08-08 | 2023-08-08 | Large-torque pre-molding driving structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322127212.3U CN220534842U (en) | 2023-08-08 | 2023-08-08 | Large-torque pre-molding driving structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220534842U true CN220534842U (en) | 2024-02-27 |
Family
ID=89976581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322127212.3U Active CN220534842U (en) | 2023-08-08 | 2023-08-08 | Large-torque pre-molding driving structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220534842U (en) |
-
2023
- 2023-08-08 CN CN202322127212.3U patent/CN220534842U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1665665A (en) | Drive apparatus for a plastics processing machine | |
| CN220534842U (en) | Large-torque pre-molding driving structure | |
| CN102310531A (en) | Low-inertia ejection mechanism of all-electric injection machine | |
| CN203472102U (en) | Driving device for electric injection molding machine | |
| JP2575573B2 (en) | Screw drive for injection molding machine | |
| CN209621965U (en) | A kind of pivoting support drive mechanism | |
| CN211915502U (en) | A automatic forming die for powder metallurgy bush | |
| CN104882998A (en) | Magnetic sealing device for large-torque magnetic stirrers | |
| CN202264367U (en) | All-electric injection machine low inertia ejection mechanism | |
| CN2147089Y (en) | Joint for rotary blow plastics machine head | |
| CN220517390U (en) | Middle plate mechanism of large multicolor injection molding machine die | |
| CN203228379U (en) | Plasticizing device | |
| CN111300792A (en) | Plastic extrusion equipment for stationery production and processing | |
| CN201471693U (en) | Built-in bearing type single-cylinder injection plasticizing device | |
| CN213593718U (en) | Compression roller main shaft of ball press | |
| CN212193944U (en) | Electric injection molding device for injection molding machine | |
| CN212045929U (en) | Flexible mould moving mechanism | |
| CN204295983U (en) | A kind of single-cylinder injection molding machine | |
| CN201696851U (en) | Combined type motorcycle engine oil pump | |
| CN212045668U (en) | Injection molding machine that plastics processing was used | |
| CN220095471U (en) | Cam adjusting device of radial wall thickness of electrodynamic type | |
| CN215110376U (en) | Cold warm forging gear | |
| CN212171214U (en) | Single-cylinder injection device of injection molding machine | |
| CN218505136U (en) | Low inertia transmission structure of injection molding machine | |
| CN219774343U (en) | Double-shaft mechanical seal type double-screw pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |