CN217927046U - Double screw extruder gear box - Google Patents
Double screw extruder gear box Download PDFInfo
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- CN217927046U CN217927046U CN202222388795.0U CN202222388795U CN217927046U CN 217927046 U CN217927046 U CN 217927046U CN 202222388795 U CN202222388795 U CN 202222388795U CN 217927046 U CN217927046 U CN 217927046U
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Abstract
The utility model relates to a double screw extruder gear box, including last box and lower box, go up the internal transmission shaft of installing of box, go up the box from top to bottom the subdivision forms box on first last box and the second, first go up between the box on box and the second, and be detachable fixed connection between box and the lower box on the second, go up the transmission shaft install in on the box on the second, compare in prior art double screw extruder gear box go up the transmission shaft need last box inside whole assembly again with the cooperation of lower box, the assembly process is loaded down with trivial details, and the more difficult problem of synchronous adjustment of box internal transmission structure, the utility model discloses in the assembling process, need not go up the transmission shaft and carry out the upset operation after last box internal whole assembly, the assembly process is simpler high-efficient, and the synchronous adjustment of the internal transmission structure of box of being convenient for more.
Description
Technical Field
The utility model relates to a gear box technical field, concretely relates to double screw extruder gear box.
Background
The double-screw extruder gear box mainly realizes two functions of speed reduction and power distribution, reduces the rotating speed of a motor to the rotating speed required by the extruder screw, and equally distributes the power of an input shaft to two output shafts. In the prior art, a box body of a gear box of a double-screw extruder comprises an upper box body and a lower box body which are split up and down; in the box body, an input shaft is in transmission connection with a secondary gear shaft, the secondary gear shaft is in coaxial transmission connection with a first output shaft through a spline shaft, the heights of the axes of the input shaft, the secondary gear shaft, the spline shaft and the first output shaft are the same, and the axes are all positioned on the splitting surface of the box body; meanwhile, the secondary gear shaft is connected to a second output shaft with the same height as the first output shaft in a transmission way through an upper transmission shaft above the secondary gear shaft and a lower transmission shaft below the secondary gear shaft in a shunting and then flow-combining way; the whole transmission structure is arranged up and down symmetrically.
In the prior art, the upper transmission shaft needs to be integrally assembled in the upper box body and then the upper box body is turned over to be in butt joint with the lower box body, the assembling process is complicated, synchronous transmission of the upper transmission shaft, the secondary gear shaft and the second output shaft is difficult to ensure in the assembling process, and due to shielding of the upper box body, synchronous adjustment of gear transmission of the upper transmission shaft, the secondary gear shaft and the second output shaft is difficult to realize, so that the integral assembling performance of the existing structure is poor; moreover, the secondary gear shaft and the first output shaft are driven by the spline shaft, so that the transmission path is long, the structure is redundant, the stability is poor, and the economy is poor; the upper shunt shaft and the lower shunt shaft are both whole slender shafts, are long in length, and have high processing difficulty on the premise of ensuring the precision; the span of the bearing hole of the box body is too large, and the processing is difficult.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the problem that the last transmission shaft of twin-screw extruder gear box needs last box inside integrated assembly again and cooperates with lower box among the prior art, and the assembly process is loaded down with trivial details, and the synchronous adjustment of transmission structure in the box is more difficult provides a twin-screw extruder gear box.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides a double screw extruder gear box, includes box and lower box, go up the internal transmission shaft that installs of box, go up the box and divide from top to bottom and form box on first box and the second, between the box on first box and the second, and be detachable fixed connection between box and the lower box on the second, go up the transmission shaft install in on the box on the second.
Adopt aforementioned technical scheme the utility model discloses, when the assembly, accomplish the assembly of transmission part in the lower box earlier, install fixed second on the box down again and go up the box, then install the transmission shaft on the box on the second, because the top does not have the box and does not shelter from, synchronous adjustment after the transmission shaft is gone up in the installation is convenient and fast more, after the adjustment is accomplished, install fixed first box of going up on the box on the second, accomplish the assembly, compare in prior art the last transmission shaft of twin-screw extruder gear box need last box inside assembly again with the cooperation of lower box, the assembly process is loaded down with trivial details, and the more difficult problem of synchronous adjustment of box internal transmission structure, the utility model discloses in the assembling process, need not go up the operation of overturning after the internal whole assembly of last box of transmission shaft, the assembly process is more simple high-efficient, and the synchronous adjustment of the internal transmission structure of box of being convenient for more.
Furthermore, the axis of going up the transmission shaft is located go up on the subdivision face of box, so set up, the subdivision face can be with going up on the transmission shaft installation bearing hole on last box evenly divide to box on first last box and the second, it is more convenient when on the box is installed on the second to go up transmission shaft and bearing.
Furthermore, the first upper box body forms a first upper left box body and a first upper right box body which are connected along longitudinal left and right splitting, the second upper box body forms a second upper left box body and a second upper right box body which are connected along longitudinal left and right splitting, the lower box body forms a left lower box body and a right lower box body which are connected along longitudinal left and right splitting, the left and right splitting forms are set, and the problems that the bearing hole span of the box body is too large and the processing is difficult are solved well.
The first upper left box body, the second upper left box body and the left lower box body are flush in right end face and connected to the left side of the partition plate; the left end faces of the first upper right box body, the second upper right box body and the right lower box body are flush, the first upper right box body, the second upper right box body and the right lower box body are connected to the right side of the partition plate, installation errors possibly exist due to insufficient installation surface precision when the left and right split box bodies are directly installed together, the partition plate is arranged in the middle, and the partition plate is adjusted or ground to eliminate the installation errors.
Further, be equipped with input gear shaft, second grade gear shaft and the first output shaft that transmission connects in proper order in the gear box, input gear shaft and second grade gear shaft pass through gear drive and connect, the second grade gear shaft through the spline that its tip was equipped with first output shaft coaxial drive connects, and second grade gear shaft and first output shaft directly pass through splined connection, compare in prior art, have cancelled the integral key shaft, do not have the redundant design, shorten transmission path, reduce transmission loss, make the gear box structure compacter, and reduced the use of part, improved the economic nature.
Further, a lower transmission shaft and a second output shaft are arranged in the gearbox body, and the secondary gear shaft is in transmission connection with the second output shaft through the upper transmission shaft and the lower transmission shaft; the upper transmission shaft comprises a first shunt shaft and a first confluence shaft which are coaxially connected through a first spline sleeve in a transmission way, the lower transmission shaft comprises a second shunt shaft and a second confluence shaft which are coaxially connected through a second spline sleeve in a transmission way, and the upper transmission shaft and the lower transmission shaft are arranged into the shunt shaft and the confluence shaft which are connected through the spline sleeves, so that the use of the whole slender shaft is avoided, and the slender shaft has higher requirement on precision and is difficult to process, so that the mode is easier to process and manufacture; meanwhile, the shunting shaft and the confluence shaft can be synchronously adjusted with the secondary gear shaft and the second output shaft respectively and independently, and then are connected through the spline sleeve, so that the difficulty of synchronous adjustment is reduced.
Furthermore, a first confluence gear in interference fit is sleeved on the first confluence shaft, a first annular oil groove is formed in the fit shaft surface of the first confluence shaft, and a first oil hole communicated with the first annular oil groove is formed in the end surface of the first confluence shaft; the second confluence epaxial cover of cover is equipped with interference fit's second confluence gear, be equipped with second annular oil groove on the cooperation axial plane of second confluence axle, be equipped with on the second confluence axial plane with the second oilhole of second annular oil groove intercommunication, beat high pressure oil through the oilhole when transferring synchronization and make the confluence gear rotate for the confluence axle, synchronous and phase place is transferred the back, uninstallation high pressure oil, confluence gear and confluence axle are again interference connected.
Further, through bolted connection, the connection is firm between first upper left box, the upper left box of second, left lower box, baffle, first upper right box, the upper right box of second, the lower right box, guarantees box intensity.
Compared with the prior art, the beneficial effects of the utility model are that: in the assembling process, the upper transmission shaft does not need to be turned over after being integrally assembled in the upper box body, the assembling process is simpler and more efficient, and the synchronous adjustment of the transmission structure in the box body is more convenient; the box body is split left and right, so that the problems of overlarge span of a bearing hole of the box body and difficult processing are well solved; a spline shaft is cancelled, a redundant design is avoided, a transmission path is shortened, transmission loss is reduced, the structure of the gear box is more compact, the use of parts is reduced, and the economy is improved; the shunting shaft and the confluence shaft are connected by adopting a spline sleeve, so that a slender shaft is avoided, and the processing manufacturability of parts is improved; the synchronous adjustment of transmission can be rapidly completed by combining the annular oil groove pump pressure and the spline housing connection.
Description of the drawings:
FIG. 1 is a view showing the structure of a case;
FIG. 2 is an internal structure view of the present invention;
fig. 3 is a transmission diagram of the present invention.
The labels in the figure are: 1-a first upper left box, 2-a second upper left box, 3-a left lower box, 4-a partition, 5-a first upper right box, 6-a second upper right box, 7-a right lower box, 8-an input gear shaft, 9-a secondary gear shaft, 10-a bull gear, 11-a first split gear, 12-a first split shaft, 13-a first spline housing, 14-a first confluence shaft, 15-a first confluence gear, 16-a first output shaft, 17-a second output shaft, 18-a second confluence gear, 19-a second confluence shaft, 20-a second spline housing, 21-a second split shaft, 22-a second split gear, 23-a first oil hole, 24-a second oil hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The embodiment provides a gear box of a double-screw extruder, which comprises an upper box body and a lower box body, wherein an upper transmission shaft is installed in the upper box body, the upper box body is vertically split to form a first upper box body and a second upper box body, the first upper box body and the second upper box body and the lower box body are fixedly connected in a detachable mode, and the upper transmission shaft is installed on the second upper box body; the axis of the upper transmission shaft is positioned on the splitting surface of the upper box body; the upper transmission shaft can be arranged on the second upper box body after the gear is sleeved, so that the installation is convenient and quick;
the first upper box body is longitudinally split left and right to form a first left upper box body 1 and a first right upper box body 5 which are connected, the second upper box body is longitudinally split left and right to form a second left upper box body 2 and a second right upper box body 6 which are connected, and the lower box body is longitudinally split left and right to form a left lower box body 3 and a right lower box body 7 which are connected;
the box body structure also comprises a vertically arranged partition plate 4, and the right end faces of the first left upper box body 1, the second left upper box body 2 and the left lower box body 3 are flush and connected to the left side of the partition plate 4; the left end faces of the first right upper box body 5, the second right upper box body 6 and the right lower box body 7 are flush, and the first right upper box body, the second right upper box body and the right lower box body are connected to the right side of the partition plate 4;
an input gear shaft 8, a secondary gear shaft 9 and a first output shaft 16 which are sequentially connected in a transmission manner are arranged in the gear box body, the input gear shaft 8 and the secondary gear shaft 9 are connected through a gear in a transmission manner, and the secondary gear shaft 9 is coaxially connected with the first output shaft 16 through a spline arranged at the end part of the secondary gear shaft in a transmission manner; the end face of the secondary gear shaft 9 is concave, a spline is formed on the wall surface of the concave cavity, and a spline matched with the first output shaft 16 is arranged on the side face of the connecting end of the secondary gear shaft 9;
a lower transmission shaft and a second output shaft are further arranged in the gearbox body, and the secondary gear shaft 9 is in transmission connection with the second output shaft through the upper transmission shaft and the lower transmission shaft; the upper transmission shaft comprises a first shunt shaft 12 and a first confluence shaft 14 which are coaxially connected in a transmission way through a first spline sleeve 13, and the lower transmission shaft comprises a second shunt shaft 21 and a second confluence shaft 19 which are coaxially connected in a transmission way through a second spline sleeve 20;
a first confluence gear 15 in interference fit is sleeved on the first confluence shaft 14, a first annular oil groove is arranged on the fit shaft surface of the first confluence shaft 14, and a first oil hole 23 communicated with the first annular oil groove is arranged on the end surface of the first confluence shaft 14; a second confluence gear 18 in interference fit is sleeved on the second confluence shaft 19, a second annular oil groove is arranged on the matching shaft surface of the second confluence shaft 19, and a second oil hole 24 communicated with the second annular oil groove is arranged on the end surface of the second confluence shaft 19;
the first left upper box body 1, the second left upper box body 2, the left lower box body 3, the partition plate 4, the first right upper box body 5, the second right upper box body 6 and the right lower box body 7 are connected through bolts;
the transmission is described below with reference to fig. 2-3: the input gear shaft 8 and the large gear 10 are meshed with each other to transmit power, the large gear 10 is connected to the secondary gear shaft 9 in an interference mode, and the secondary gear shaft 9 is directly connected with the first output shaft 16 through a spline to output 50% of power; the secondary gear shaft 9 is respectively meshed with the first shunt gear 11 and the second shunt gear 22, and respectively transmits 25% of power, the first shunt gear 11 and the second shunt gear 22 are respectively in interference connection with the corresponding first shunt shaft 12 and the second shunt shaft 21 to transmit power, and the first shunt shaft 12 and the second shunt shaft 21 are respectively connected with the first confluence shaft 14 and the second confluence shaft 19 through the first spline sleeve 13 and the second spline sleeve 20 to form a torsion shaft; the first confluence gear 15 and the second confluence gear 18 of the first confluence shaft 14 and the second confluence shaft 19 are simultaneously engaged with the second output shaft 17 to synchronously output power with the first output shaft 16 at the same speed.
Adopt the utility model discloses of aforementioned technical scheme, when assembling, the assembly of transmission part in the lower box is accomplished earlier, install fixed second on the box again, then install the transmission shaft on the second on the box, because there is not the box to shelter from above, the synchronous adjustment after installing the transmission shaft is more convenient and fast, after the adjustment is accomplished, install fixed first upper box on the second upper box, accomplish the assembly, compare in prior art the upper transmission shaft of twin-screw extruder gear box need in the upper box wholly assemble again with the cooperation of lower box, the assembly process is loaded down with trivial details, and the problem of the synchronous adjustment of box internal transmission structure is more difficult, the utility model discloses in the assembly process, need not carry out upset operation after the upper transmission shaft wholly assembles in the upper box, the assembly process is more simple high-efficient, and the synchronous adjustment of box internal transmission structure of being more convenient for; the box body is split left and right, so that the problems of overlarge span of a bearing hole of the box body and difficult processing are well solved; a spline shaft is cancelled, a redundant design is avoided, a transmission path is shortened, transmission loss is reduced, the structure of the gear box is more compact, the use of parts is reduced, and the economy is improved; the shunting shaft and the converging shaft are connected by adopting a spline sleeve, so that a slender shaft is avoided, and the processing manufacturability of parts is improved; the synchronous adjustment of transmission can be rapidly completed by a mode of combining annular oil groove pumping pressure and spline sleeve connection.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. The utility model provides a double screw extruder gear box, includes box and lower box, go up and install transmission shaft, its characterized in that in the box: the upper box body is vertically split to form a first upper box body and a second upper box body, detachable fixed connection is formed between the first upper box body and the second upper box body and between the second upper box body and the second lower box body, and the upper transmission shaft is installed on the second upper box body.
2. The twin screw extruder gearbox of claim 1, wherein: the axis of the upper transmission shaft is positioned on the splitting surface of the upper box body.
3. The twin-screw extruder gearbox according to claim 1 or 2, characterized in that: the first upper box body is longitudinally split left and right to form a first left upper box body (1) and a first right upper box body (5) which are connected, the second upper box body is longitudinally split left and right to form a second left upper box body (2) and a second right upper box body (6) which are connected, and the lower box body is longitudinally split left and right to form a left lower box body (3) and a right lower box body (7) which are connected.
4. The twin screw extruder gearbox of claim 3, wherein: the box body structure is characterized by further comprising a partition plate (4) which is vertically arranged, the right end faces of the first left upper box body (1), the second left upper box body (2) and the left lower box body (3) are flush, and the first left upper box body, the second left upper box body and the left lower box body are connected to the left side of the partition plate (4); the left end faces of the first right upper box body (5), the second right upper box body (6) and the right lower box body (7) are flush, and the first right upper box body, the second right upper box body and the right lower box body are connected to the right side of the partition plate (4).
5. The twin screw extruder gearbox as set forth in claim 4, wherein: an input gear shaft (8), a secondary gear shaft (9) and a first output shaft (16) which are sequentially connected in a transmission manner are arranged in the gear box body, the input gear shaft (8) and the secondary gear shaft (9) are connected through a gear in a transmission manner, and the secondary gear shaft (9) is connected with the first output shaft (16) in a coaxial transmission manner through a spline arranged at the end part of the secondary gear shaft.
6. The twin screw extruder gearbox of claim 5, wherein: a lower transmission shaft and a second output shaft are further arranged in the gearbox body, and the secondary gear shaft (9) is in transmission connection with the second output shaft through the upper transmission shaft and the lower transmission shaft; the upper transmission shaft comprises a first shunt shaft (12) and a first confluence shaft (14) which are in coaxial transmission connection through a first spline sleeve (13), and the lower transmission shaft comprises a second shunt shaft (21) and a second confluence shaft (19) which are in coaxial transmission connection through a second spline sleeve (20).
7. The twin screw extruder gearbox of claim 6, wherein: a first confluence gear (15) in interference fit is sleeved on the first confluence shaft (14), a first annular oil groove is formed in the fit shaft surface of the first confluence shaft (14), and a first oil hole (23) communicated with the first annular oil groove is formed in the end surface of the first confluence shaft (14); the second confluence gear (18) in interference fit is sleeved on the second confluence shaft (19), a second annular oil groove is formed in the matching shaft surface of the second confluence shaft (19), and a second oil hole (24) communicated with the second annular oil groove is formed in the end surface of the second confluence shaft (19).
8. The twin screw extruder gearbox of claim 4, wherein: the first upper left box body (1), the second upper left box body (2), the left lower box body (3), the partition plate (4), the first upper right box body (5), the second upper right box body (6) and the right lower box body (7) are connected through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222388795.0U CN217927046U (en) | 2022-09-08 | 2022-09-08 | Double screw extruder gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222388795.0U CN217927046U (en) | 2022-09-08 | 2022-09-08 | Double screw extruder gear box |
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| Publication Number | Publication Date |
|---|---|
| CN217927046U true CN217927046U (en) | 2022-11-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222388795.0U Active CN217927046U (en) | 2022-09-08 | 2022-09-08 | Double screw extruder gear box |
Country Status (1)
| Country | Link |
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| CN (1) | CN217927046U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116792329A (en) * | 2023-08-22 | 2023-09-22 | 江苏海拓宾未来工业科技集团有限公司 | Integral gear type oil-free variable frequency centrifugal compressor and preparation process thereof |
-
2022
- 2022-09-08 CN CN202222388795.0U patent/CN217927046U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116792329A (en) * | 2023-08-22 | 2023-09-22 | 江苏海拓宾未来工业科技集团有限公司 | Integral gear type oil-free variable frequency centrifugal compressor and preparation process thereof |
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