CN215861643U - Heavy-duty industrial gear box speed reducer - Google Patents
Heavy-duty industrial gear box speed reducer Download PDFInfo
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- CN215861643U CN215861643U CN202121757799.0U CN202121757799U CN215861643U CN 215861643 U CN215861643 U CN 215861643U CN 202121757799 U CN202121757799 U CN 202121757799U CN 215861643 U CN215861643 U CN 215861643U
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- gear
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- box body
- lower box
- output shaft
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Abstract
The utility model relates to a heavy-duty industrial gearbox speed reducer which comprises an upper box body and a lower box body which are connected together, wherein an input shaft, a first gear shaft, a second gear shaft and an output shaft are sequentially arranged on the lower box body from left to right, the rear end of the input shaft extends out of the rear end face of the lower box body, the front end of the input shaft is movably arranged on the edge of the lower box body, a cylindrical roller bearing is arranged at the joint of the rear part of the input shaft and the lower box body, the cylindrical roller bearing is provided with a retainer made of copper alloy material, the first gear shaft and the second gear shaft are movably arranged in the lower box body, the front end of the output shaft is exposed out of the front end face of the lower box body, two single-row tapered roller bearings are arranged at the joint of the front part of the output shaft and the lower box body, and a bearing clearance adjusting ring is arranged between the two single-row tapered roller bearings. The bearings arranged on the input shaft and the output shaft of the speed reducer have prolonged service life, and normal use of the speed reducer is ensured.
Description
Technical Field
The utility model relates to the technical field of speed reducers, in particular to a heavy-duty industrial gearbox speed reducer.
Background
The heavy-duty industrial gear box reducer is widely applied to various mechanical transmission structures of coal, metallurgy, mines, chemical industry, building materials, light industry, petroleum and the like, so that the stability and reliability of the operation of the reducer is one of the keys for realizing the production in the fields. After the existing heavy-duty industrial gearbox speed reducer is used for a certain time, a bearing at the input position of an input shaft is easy to damage, specifically, a retainer and a rolling body fall off, and meanwhile, the service life of the bearing at the output end of an output shaft is also shortened at an accelerated speed, so that the normal use of the speed reducer is influenced.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: overcomes the defects in the prior art and provides a heavy-load industrial gearbox speed reducer.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the rear end of the input shaft extends out of the rear end face of the lower box body, the front end of the input shaft is movably mounted on the edge of the lower box body, a cylindrical roller bearing is arranged at the joint of the rear portion of the input shaft and the lower box body and is provided with a retainer made of copper alloy material, the first gear shaft and the second gear shaft are movably mounted in the lower box body, the front end face of the output shaft is exposed out of the front end face of the lower box body, two single-row tapered roller bearings are arranged at the joint of the front portion of the output shaft and the lower box body, and a bearing clearance adjusting ring is arranged between the two single-row tapered roller bearings.
A cylindrical roller bearing is arranged at the joint of the rear part of the input shaft and the lower box body, the cylindrical roller bearing adopts a copper alloy material retainer, the wall thickness of the retainer is increased, the cylindrical roller can move along the axial direction to release the thermal expansion of the bearing, and the service life of the cylindrical roller bearing is prolonged; two single-row tapered roller bearings are arranged at the joint of the front part of the output shaft and the lower box body, a bearing clearance adjusting ring is arranged between the two single-row tapered roller bearings, and the clearance of the inner ring and the outer ring of the bearing is adjusted by utilizing the clearance adjusting ring, so that the service life is prolonged.
Further, two sides of the bearing clearance adjusting ring are respectively provided with a spring, and the two springs are respectively contacted with the outer rings of the two single-row tapered roller bearings.
The elastic force of the spring is utilized to overcome the vibration quantity of the outer ring of the bearing, the impact force on the bearing is reduced, and the service life is further prolonged.
Further defined, the cylindrical roller bearing comprises an inner ring, an outer ring, rollers and a retainer, wherein a baffle ring is arranged outside the outer ring.
And the baffle ring is arranged, so that the lubrication of the cylindrical roller bearing is convenient to realize.
Further, an input gear is mounted on the input shaft close to the rear portion, a first gear and a second gear meshed with the input gear are mounted on the first gear shaft, a third gear and a fourth gear meshed with the first gear are mounted on the second gear shaft, and an output gear meshed with the fourth gear is mounted in the middle of the output shaft.
The speed reducer is arranged in the three-stage gear transmission mode, and has the advantages of large bearing capacity, stable transmission ratio, reliable work, compact structure, convenience in disassembly and assembly and the like.
Further, the front end of the input shaft, the rear end of the output shaft, and the two ends of the first gear shaft and the second gear shaft are movably connected with the lower box body through tapered roller bearings.
The tapered roller bearing is adopted to bear radial load and unidirectional axial load.
In order to ensure the sealing performance of the whole machine, the lower box body is further limited, a first shaft cover is arranged at the position where the input shaft extends out, and a circle of oil seal is arranged between the first shaft cover and the input shaft; and a second shaft cover is arranged at the position, extending out of the output shaft, of the lower box body, and two rings of oil seals are arranged between the second shaft cover and the output shaft.
The utility model has the beneficial effects that: according to the utility model, the cylindrical roller bearing is arranged at the joint of the rear part of the input shaft and the lower box body, the cylindrical roller bearing adopts the copper alloy material retainer, the wall thickness of the retainer is increased, the cylindrical roller can move along the axial direction to release the thermal expansion of the bearing, and the service life of the cylindrical roller bearing is prolonged; two single-row tapered roller bearings are arranged at the joint of the front part of the output shaft and the lower box body, a bearing clearance adjusting ring is arranged between the two single-row tapered roller bearings, the clearance of the inner ring and the outer ring of the bearing is adjusted by the clearance adjusting ring, the service life of the bearing is prolonged, and the normal use of the speed reducer is ensured.
Drawings
The utility model is further described with reference to the following figures and embodiments.
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a sectional view in the direction a-a of fig. 1.
In the figure: 1. the double-row tapered roller bearing comprises an upper box body, 2, a lower box body, 3, an input shaft, 4, a first gear shaft, 5, a second gear shaft, 6, an output shaft, 7, a cylindrical roller bearing, 8, a bearing clearance adjusting ring, 9, an input gear, 10, a first gear, 11, a second gear, 12, a third gear, 13, a fourth gear, 14, an output gear, 15, a first shaft cover, 16, an oil seal, 17, a second shaft cover and 18, and is characterized in that the double-row tapered roller bearing comprises a first gear, a second gear, a third gear, a fourth gear, a third gear, a fourth gear, a third gear, a fourth, a third, a fourth, a third, a fourth, a third, a fourth, a third, a fourth, a third, a fourth, a third, a fourth, a third, a fourth, a third, a fourth, a third, a fourth, a third, a fourth, a third, a.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in figures 1 to 3, a heavy-duty industrial gearbox speed reducer comprises an upper box body 1 and a lower box body 2 which are connected together, wherein an input shaft 3, a first gear shaft 4, a second gear shaft 5 and an output shaft 6 are sequentially arranged on the lower box body 2 from left to right, the rear end of the input shaft 3 extends out of the rear end surface of the lower box body 2, the front end of the input shaft is movably arranged on the edge of the lower box body 2, a cylindrical roller bearing 7 is arranged at the joint of the rear part of the input shaft 3 and the lower box body 2, the cylindrical roller bearing 7 is provided with a retainer made of copper alloy material, the first gear shaft 4 and the second gear shaft 5 are movably arranged in the lower box body 2, the front end of the output shaft 6 is exposed out of the front end surface of the lower box body 2, two single-row tapered roller bearings 18 are arranged at the joint of the front part of the output shaft 6 and the lower box body 2, a bearing clearance adjusting ring 8 is arranged between the two single-row tapered roller bearings 18, two sides of the bearing clearance adjusting ring 8 are respectively provided with a spring, the two springs are respectively contacted with the outer rings of the two single-row tapered roller bearings 7.
The cylindrical roller bearing 7 comprises an inner ring, an outer ring, rollers and a retainer, wherein a baffle ring is arranged outside the outer ring.
In this embodiment, an input gear 9 is mounted on the input shaft 3 near the rear portion, a first gear 10 and a second gear 11 engaged with the input gear 9 are mounted on the first gear shaft 4, a third gear 12 and a fourth gear 13 engaged with the first gear 10 are mounted on the second gear shaft 5, and an output gear 14 engaged with the fourth gear 13 is mounted in the middle of the output shaft 6. The front end of the input shaft 3, the rear end of the output shaft, and the two ends of the first gear shaft 4 and the second gear shaft 5 are movably connected with the lower box body 2 through tapered roller bearings.
A first shaft cover 15 is arranged at the position, extending out of the input shaft 3, of the lower box body 2, and a circle of oil seal 16 is arranged between the first shaft cover 15 and the input shaft 3; a second shaft cover 17 is arranged at the position, extending out of the output shaft 6, on the lower box body 2, and two circles of oil seals 16 are arranged between the second shaft cover 17 and the output shaft 6.
The specific working process is as follows: the power mechanism (motor, can dispose the double speed motor as required) drives the input shaft 3 to rotate, drive the input gear 9 to rotate, the input gear 9 drives the second gear 11 to rotate, make the first gear shaft 4 rotate, the first gear 10 on the first gear shaft 4 follows and rotates, drive the third gear 12 to rotate, make the second gear shaft 5 rotate, the fourth gear 13 on the second gear shaft 5 follows and rotates, drive the output gear 14 to rotate, make the output shaft 4 rotate at last, provide the rotational speed that the working equipment needs and the torque that needs the transmission.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the scope of the present invention.
Claims (6)
1. The utility model provides a heavy-duty type industrial gear case speed reducer, is including last box and lower box that link together, set gradually input shaft, first gear shaft, second gear shaft and output shaft on the box down from left to right, the rear end of input shaft stretches out down box rear end face and sets up, its front end movable mounting under on the box border, its characterized in that: the bearing clearance adjusting device is characterized in that a cylindrical roller bearing is arranged at the joint of the rear part of the input shaft and the lower box body, the cylindrical roller bearing is provided with a retainer made of a copper alloy material, the first gear shaft and the second gear shaft are movably mounted in the lower box body, the front end of the output shaft is exposed out of the front end face of the lower box body, two single-row tapered roller bearings are arranged at the joint of the front part of the output shaft and the lower box body, and a bearing clearance adjusting ring is arranged between the two single-row tapered roller bearings.
2. The heavy-duty industrial gearbox reducer of claim 1, wherein: two sides of the bearing clearance adjusting ring are respectively provided with a spring, and the two springs are respectively contacted with the outer rings of the two single-row tapered roller bearings.
3. The heavy-duty industrial gearbox reducer of claim 1, wherein: the cylindrical roller bearing comprises an inner ring, an outer ring, rollers and a retainer, wherein a baffle ring is arranged outside the outer ring.
4. The heavy-duty industrial gearbox reducer of claim 1, wherein: an input gear is arranged on the input shaft close to the rear part, a first gear and a second gear meshed with the input gear are arranged on a first gear shaft, a third gear and a fourth gear meshed with the first gear are arranged on a second gear shaft, and an output gear meshed with the fourth gear is arranged in the middle of an output shaft.
5. The heavy-duty industrial gearbox reducer of claim 4, wherein: the front end of the input shaft, the rear end of the output shaft, and the two ends of the first gear shaft and the second gear shaft are movably connected with the lower box body through tapered roller bearings.
6. The heavy-duty industrial gearbox reducer of claim 1, wherein: a first shaft cover is arranged at the position, extending out of the input shaft, of the lower box body, and a circle of oil seal is arranged between the first shaft cover and the input shaft; and a second shaft cover is arranged at the position, extending out of the output shaft, of the lower box body, and two rings of oil seals are arranged between the second shaft cover and the output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121757799.0U CN215861643U (en) | 2021-07-30 | 2021-07-30 | Heavy-duty industrial gear box speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121757799.0U CN215861643U (en) | 2021-07-30 | 2021-07-30 | Heavy-duty industrial gear box speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215861643U true CN215861643U (en) | 2022-02-18 |
Family
ID=80328784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121757799.0U Active CN215861643U (en) | 2021-07-30 | 2021-07-30 | Heavy-duty industrial gear box speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215861643U (en) |
-
2021
- 2021-07-30 CN CN202121757799.0U patent/CN215861643U/en active Active
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