CN212080096U

CN212080096U - Bevel gear speed reducer transmission system of small single-screw extruder

Info

Publication number: CN212080096U
Application number: CN202020598676.6U
Authority: CN
Inventors: 赵国峰
Original assignee: Wuxi Lanling Plastic Machinery Co ltd
Current assignee: Wuxi Lanling Plastic Machinery Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2020-12-04
Anticipated expiration: 2030-04-21

Abstract

The utility model discloses a bevel gear speed reducer transmission system of small-size single screw extruder relates to bevel gear speed reducer technical field, easily causes the problem of loss to bevel gear speed reducer input shaft for solving the powerful moment of torsion of current output. The utility model discloses a brake device of a motor vehicle, including casing, input shaft, buffer chamber, driving gear, gear shaft, fixing base, electromagnetic brake, brake bearing, input shaft, buffer spring, gear shaft, buffer chamber, buffer spring, gear shaft, output shaft, buffer chamber, buffer spring, gear shaft, output shaft, brake bearing, input shaft, buffer chamber, output shaft, brake bearing, output shaft, output.

Description

Bevel gear speed reducer transmission system of small single-screw extruder

Technical Field

The utility model relates to a bevel gear speed reducer technical field specifically is a bevel gear speed reducer transmission system of small-size single screw extruder.

Background

The bevel gear reducer is one type of bevel gear reducers, is a special reducer for a small single-screw extruder, adopts a gleason quasi-hyperbolic tooth type gear, has the characteristics of large bearing capacity, low noise, long service life, high efficiency, stable operation and the like because the gear is a hard tooth surface, has the performance far superior to that of a cycloidal pin gear reducer and a worm gear reducer, and has been widely accepted and applied by users.

However, in the transmission process of the existing bevel gear reducer, because the input shaft is connected with the output shaft of the driving motor through the coupler, at the starting moment, strong torque is transmitted through the output shaft instantly, and loss is easily caused to the input shaft, so that the existing requirements are not met, and the transmission system of the bevel gear reducer of the small single-screw extruder is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a bevel gear speed reducer transmission system of small-size single screw extruder to the powerful moment of torsion of output that proposes in solving above-mentioned background art easily causes the problem of loss to bevel gear speed reducer input shaft.

In order to achieve the above object, the utility model provides a following technical scheme: a bevel gear reducer transmission system of a small single-screw extruder comprises a shell, wherein a fixed seat is arranged in the shell, an electromagnetic brake is arranged in the fixed seat, a brake bearing is arranged at the middle position of the electromagnetic brake, an input shaft is arranged at the upper end of the shell, the lower end of the input shaft extends into the shell, the input shaft consists of an outer shaft and an inner shaft, the inner shaft is positioned in the outer shaft, the lower end of the inner shaft extends to the lower part of the outer shaft, a buffer cavity is arranged in the outer shaft, a groove is arranged at one end of the inner shaft, which is positioned in the buffer cavity, a buffer spring is arranged between the groove and the buffer cavity, a driving gear is arranged at the lower end of the inner shaft, a gear shaft is arranged below the driving gear, a first reduction gear is arranged at the middle position of the gear shaft, and a transmission gear is, an output shaft is arranged on one side of the transmission gear, and a second reduction gear is arranged in the middle of the output shaft.

Preferably, the inner shaft is rotatably connected with the outer shaft, the buffer spring is fixedly connected with the groove and the buffer cavity, and the arc length between the inner shaft and the buffer cavity is eight millimeters.

Preferably, the fixing seat is fixedly connected with the housing, the electromagnetic brake is fixedly connected with the fixing seat, the inner shaft penetrates through and extends to the lower part of the brake bearing, and the inner shaft is fixedly connected with the brake bearing.

Preferably, the outer ends of the input shaft and the output shaft are respectively provided with a coupler, and the couplers are respectively fixedly connected with the input shaft and the output shaft.

Preferably, bearing seats are arranged at one end of the gear shaft close to the shell and the upper end of the output shaft, the bearing seats are fixedly connected with the shell and the gear shaft, and the bearing seats are fixedly connected with the shell and the output shaft.

Preferably, the driving gear is fixedly connected with the inner shaft, the first reduction gear is fixedly connected with the gear shaft, the driving gear is meshed with the first reduction gear, the transmission gear is meshed with the second reduction gear, and the output shaft is rotatably connected with the shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model is formed by the input shaft consisting of the outer shaft and the inner shaft, the outer shaft is connected with the inner shaft in a rotating way, the buffer cavity is arranged in the outer shaft, the part of the inner shaft positioned in the buffer cavity is provided with the groove, so that the upper end of the inner shaft forms an incomplete annular structure, a certain space is arranged between the upper end of the inner shaft and the buffer cavity, the part of the inner shaft rotating in the outer shaft is limited in a certain left and right direction, a plurality of buffer springs are arranged between the buffer cavity and the inner shaft, the shaft coupling drives the outer shaft to rotate at the moment of starting the driving mechanism, so that the space between the outer shaft and one end of the inner shaft in the buffer cavity is rapidly reduced, the buffer springs are extruded in the reducing process, the buffer springs are elastically deformed, in the deforming process, the force generated by the torque is offset to a certain degree, the pressure of the torque is weakened as much as possible, the load of the input shaft is lightened, and the service life is prolonged.

2. The utility model discloses an intermediate position department at interior axle installs electromagnetic braking ware, braking bearing fixed connection among interior axle and the electromagnetic braking ware, electromagnetic braking ware can select to open or close according to the needs of use, when electromagnetic braking ware circular telegram, form magnetic field when exciting coil circular telegram, the rotatory cutting magnetic line of force of epaxial armature produces the vortex, vortex and magnetic field interact in the armature form braking torque, thereby form and slow down, the effectual speed reduction effect that improves the bevel gear speed reducer, electromagnetic eddy current brake is sturdy and durable simultaneously, easy maintenance, the speed governing scope is big.

3. The utility model discloses a be provided with first reduction gear and second reduction gear respectively in the inside of casing, the interior axle through the braking carries out the transmission to first reduction gear through driving gear, because the gear number of first reduction gear is greater than the driving gear, form elementary speed reduction at meshing driven in-process, second reduction gear carries out the transmission through the drive gear on the first reduction gear simultaneously, make second reduction gear rotate, because the gear number of second reduction gear is greater than first reduction gear, form the secondary speed reduction in transmission process, effectually reduce the rotational speed, setting through second grade speed reduction, the effectual rotational speed that has reduced, the moment of torsion has been improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the internal structure of the input shaft of the present invention;

fig. 3 is a cross-sectional view of the output shaft of the present invention;

fig. 4 is a perspective view of the electromagnetic brake according to the present invention.

In the figure: 1. a housing; 2. an input shaft; 3. an outer shaft; 4. an inner shaft; 5. a coupling; 6. a fixed seat; 7. an electromagnetic brake; 8. a driving gear; 9. a gear shaft; 10. a bearing seat; 11. a first reduction gear; 12. a transmission gear; 13. an output shaft; 14. a second reduction gear; 15. a buffer chamber; 16. a buffer spring; 17. a groove; 18. and (5) braking the bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.

Referring to fig. 1-4, the present invention provides an embodiment: a transmission system of a bevel gear reducer of a small single-screw extruder comprises a shell 1, a fixed seat 6 is arranged in the shell 1, an electromagnetic brake 7 is arranged in the fixed seat 6, a brake bearing 18 is arranged at the middle position of the electromagnetic brake 7, an input shaft 2 is arranged at the upper end of the shell 1, the lower end of the input shaft 2 extends into the shell 1, the input shaft 2 consists of an outer shaft 3 and an inner shaft 4, the inner shaft 4 is positioned in the outer shaft 3, the lower end of the inner shaft 4 extends to the lower part of the outer shaft 3, a buffer cavity 15 is arranged in the outer shaft 3, a groove 17 is arranged at one end of the inner shaft 4 positioned in the buffer cavity 15, a buffer spring 16 is arranged between the groove 17 and the buffer cavity 15, a driving gear 8 is arranged at the lower end of the inner shaft 4, a gear shaft 9 is arranged below the driving gear 8, and a first reduction gear, one end of the gear shaft 9 is provided with a transmission gear 12, one side of the transmission gear 12 is provided with an output shaft 13, and the middle position of the output shaft 13 is provided with a second reduction gear 14.

Further, the inner shaft 4 is rotatably connected with the outer shaft 3, the buffer spring 16 is fixedly connected with the groove 17 and the buffer cavity 15, the arc length between the inner shaft 4 and the buffer cavity 15 is eight millimeters, and the force generated by the torque is offset to a certain extent in the deformation process of the buffer spring 16, so that the pressure of the torque is weakened as much as possible when the torque is transmitted to the inner shaft 4, the load of the input shaft is reduced, and the service life is prolonged.

Further, the fixed seat 6 is fixedly connected with the shell 1, the electromagnetic brake 7 is fixedly connected with the fixed seat 6, the inner shaft 4 penetrates through and extends to the lower portion of the brake bearing 18, the inner shaft 4 is fixedly connected with the brake bearing 18, when the electromagnetic brake 7 is electrified, a magnetic field is formed when the exciting coil is electrified, the armature on the inner shaft 4 rotates to cut magnetic lines of force to generate eddy currents, and the eddy currents in the armature and the magnetic field interact to form brake torque, so that speed reduction is formed.

Further, shaft coupling 5 is all installed to the outer end of input shaft 2 and output shaft 13, and shaft coupling 5 respectively with input shaft 2 and output shaft 13 fixed connection, shaft coupling 5 has made things convenient for the installation between the axle.

Further, bearing blocks 10 are installed at one end, close to the shell 1, of the gear shaft 9 and the upper end of the output shaft 13, the bearing blocks 10 are fixedly connected with the shell 1 and the gear shaft 9, the bearing blocks 10 are fixedly connected with the shell 1 and the output shaft 13, primary speed reduction is formed in the meshing transmission process due to the fact that the number of gears of the first speed reduction gear 11 is larger than that of the driving gear 8, and secondary speed reduction is formed in the transmission process due to the fact that the number of gears of the second speed reduction gear 14 is larger than that of the first speed reduction gear 11.

Furthermore, the driving gear 8 is fixedly connected with the inner shaft 4, the first reduction gear 11 is fixedly connected with the gear shaft 9, the driving gear 8 is meshed with the first reduction gear 11, the transmission gear 12 is meshed with the second reduction gear 14, the output shaft 13 is rotatably connected with the shell 1, and through the arrangement of two-stage speed reduction, the rotating speed is effectively reduced, and the torque is improved.

The working principle is as follows: when the input shaft 2 is used, the input shaft is composed of an outer shaft 3 and an inner shaft 4, the outer shaft 3 is rotatably connected with the inner shaft 4, a buffer cavity 15 is arranged in the outer shaft 3, a groove 17 is arranged at the part of the inner shaft 4 positioned in the buffer cavity 15, so that the upper end of the inner shaft 4 forms an incomplete annular structure, a certain space is formed between the upper end of the inner shaft 4 and the buffer cavity 15, the part of the inner shaft 4 rotating in the outer shaft 3 is limited in a left-right certain direction, a plurality of buffer springs 16 are arranged between the buffer cavity 15 and the inner shaft 4, the shaft coupling 5 drives the outer shaft 3 to rotate at the starting moment of a driving mechanism, so that the space between the outer shaft 3 and one end of the inner shaft 4 in the buffer cavity 15 is rapidly reduced, the buffer springs 16 are extruded in the reducing process, the buffer springs 16 are elastically deformed, and the force generated by torque is counteracted to a certain degree, therefore, when the torque is transmitted to the inner shaft 4, the pressure of the torque is weakened as much as possible, the load of an input shaft is lightened, the service life is prolonged, meanwhile, when the electromagnetic brake 7 is electrified, a magnetic field is formed when the exciting coil is electrified, the armature on the inner shaft 4 rotates to cut magnetic lines of force to generate eddy currents, the eddy currents in the armature and the magnetic field interact to form braking torque, so that speed reduction is formed, the speed reduction effect of the bevel gear reducer is effectively improved, in addition, the braked inner shaft 4 transmits the first speed reduction gear 11 through the driving gear 8, because the number of the gears of the first speed reduction gear 11 is greater than that of the driving gear 8, primary speed reduction is formed in the meshing transmission process, meanwhile, the second speed reduction gear 14 transmits through the transmission gear 12 on the first speed reduction gear 11, so that the second speed reduction gear 14 rotates, because the number of the gears 14 is greater, secondary speed reduction is formed in the transmission process, and the rotating speed is effectively reduced.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a small-size single screw extruder's bevel gear speed reducer transmission system, includes casing (1), its characterized in that: the improved electromagnetic brake is characterized in that a fixed seat (6) is arranged in the shell (1), an electromagnetic brake (7) is arranged in the fixed seat (6), a brake bearing (18) is arranged at the middle position of the electromagnetic brake (7), an input shaft (2) is arranged at the upper end of the shell (1), the lower end of the input shaft (2) extends into the shell (1), the input shaft (2) consists of an outer shaft (3) and an inner shaft (4), the inner shaft (4) is located in the outer shaft (3), the lower end of the inner shaft (4) extends to the lower portion of the outer shaft (3), a buffer cavity (15) is arranged in the outer shaft (3), a groove (17) is formed in one end, located in the buffer cavity (15), of the inner shaft (4), a buffer spring (16) is arranged between the groove (17) and the buffer cavity (15), a driving gear (8) is arranged at the lower end of the inner shaft (4), a gear shaft (9) is arranged below the driving gear (8), a first reduction gear (11) is arranged at the middle position of the gear shaft (9), a transmission gear (12) is arranged at one end of the gear shaft (9), an output shaft (13) is arranged on one side of the transmission gear (12), and a second reduction gear (14) is arranged at the middle position of the output shaft (13).

2. The bevel gear reducer transmission system of a small single-screw extruder according to claim 1, wherein: the inner shaft (4) is rotatably connected with the outer shaft (3), the buffer spring (16) is fixedly connected with the groove (17) and the buffer cavity (15), and the arc length between the inner shaft (4) and the buffer cavity (15) is eight millimeters.

3. The bevel gear reducer transmission system of a small single-screw extruder according to claim 1, wherein: the fixing seat (6) is fixedly connected with the shell (1), the electromagnetic brake (7) is fixedly connected with the fixing seat (6), the inner shaft (4) penetrates through and extends to the lower portion of the brake bearing (18), and the inner shaft (4) is fixedly connected with the brake bearing (18).

4. The bevel gear reducer transmission system of a small single-screw extruder according to claim 1, wherein: the outer ends of the input shaft (2) and the output shaft (13) are respectively provided with a coupler (5), and the couplers (5) are respectively fixedly connected with the input shaft (2) and the output shaft (13).

5. The bevel gear reducer transmission system of a small single-screw extruder according to claim 1, wherein: bearing blocks (10) are installed at one end, close to the shell (1), of the gear shaft (9) and the upper end of the output shaft (13), the bearing blocks (10) are fixedly connected with the shell (1) and the gear shaft (9), and the bearing blocks (10) are fixedly connected with the shell (1) and the output shaft (13).

6. The bevel gear reducer transmission system of a small single-screw extruder according to claim 1, wherein: the driving gear (8) is fixedly connected with the inner shaft (4), the first reduction gear (11) is fixedly connected with the gear shaft (9), the driving gear (8) is meshed with the first reduction gear (11), the transmission gear (12) is meshed with the second reduction gear (14), and the output shaft (13) is rotatably connected with the shell (1).