CN219734160U - Vertical speed reducer with dry well sealing mechanism - Google Patents
Vertical speed reducer with dry well sealing mechanism Download PDFInfo
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- CN219734160U CN219734160U CN202321349063.9U CN202321349063U CN219734160U CN 219734160 U CN219734160 U CN 219734160U CN 202321349063 U CN202321349063 U CN 202321349063U CN 219734160 U CN219734160 U CN 219734160U
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- dry well
- sealing mechanism
- speed reducer
- well sealing
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- 238000007789 sealing Methods 0.000 title claims abstract description 37
- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 34
- 230000007246 mechanism Effects 0.000 title claims abstract description 33
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000004519 grease Substances 0.000 claims description 7
- 210000002445 nipple Anatomy 0.000 claims description 7
- 210000004722 stifle Anatomy 0.000 claims description 2
- 239000010687 lubricating oil Substances 0.000 abstract description 38
- 239000003921 oil Substances 0.000 abstract description 28
- 238000009825 accumulation Methods 0.000 abstract description 5
- 230000009194 climbing Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses a vertical speed reducer with a dry well sealing mechanism, which comprises a box body with a hollow structure, an output shaft rotatably installed in the box body and one end of which penetrates through the box body, an output gear which is arranged in the box body and coaxially and fixedly installed on the output shaft, a dry well sealing mechanism which is fixedly arranged below the output gear, an annular notch groove which is arranged at the bottom of the output gear, the top of the dry well sealing mechanism extends into the annular notch groove, a first annular conical surface which is outwards inclined is arranged at one side of the annular notch groove away from the axis, and the bottom of the first annular conical surface is level with the bottom of the output gear. According to the utility model, the side wall of the annular groove far away from the center is optimized into the first annular conical surface which is inclined outwards from the traditional annular surface which is arranged vertically, so that lubricating oil can be thrown out when the lubricating oil splashes into the annular groove of the output gear, and the accumulation of the lubricating oil is avoided, so that the oil leakage risk of the vertical speed reducer is effectively reduced.
Description
Technical Field
The utility model relates to the technical field of speed reducers, in particular to a vertical speed reducer with a dry well sealing mechanism.
Background
The vertical speed reducer is a speed reducer adopting a vertical installation mode, generally fixed by a flange plate, is mainly used for a crane running mechanism, and can also be used for running mechanisms of various mechanical equipment such as transportation, metallurgy, mine, chemical industry, light industry and the like. The gear and the gear shaft adopt medium-carbon diamond medium-hard tooth surfaces, and have the advantages of compact structure, higher bearing capacity and the like. However, compared with a horizontal speed reducer, the vertical speed reducer has the advantages that the fault risk of heating and oil leakage of the vertical speed reducer is obviously high due to the special installation mode, and therefore, compared with the horizontal speed reducer, the vertical speed reducer is provided with a dry well sealing structure outside an output shaft, so that the sealing effect is improved, for example, the Chinese patent application of the patent with the publication number of CN101603585B, namely, the vertical speed reducer is provided with a seal dry well mechanism, the top end of an oil seal ring extends into the defect groove to cover the oil seal ring by the output gear, the oil blocking surface of the oil seal ring is increased, and the oil seal ring is applied to the speed reducer, so that thin oil brought by high temperature during the operation of the speed reducer is effectively prevented from entering the oil seal ring and leaking along the output shaft.
Such dry well seal arrangements have been widely used in the marketplace and, although significantly reducing the risk of oil leakage, after prolonged use, still present a slight oil leak. The applicant finds through careful study that, because the transmission structure in the speed reducer is in high-speed operation, the lubricating oil in the box body can not be raised, part of the lubricating oil can splash into the notch, because the side wall of the notch is a vertical plane, when the output gear rotates at high speed, the lubricating oil can accumulate on the side wall of the notch due to the centrifugal force effect, and is little accumulated, and finally enters the dry well sealing space to cause oil leakage.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide a vertical speed reducer with a dry well sealing mechanism, so that lubricating oil splashed into a groove at the bottom of an output gear can be thrown out, and the accumulation of the lubricating oil is avoided, thereby effectively reducing the oil leakage risk of the vertical speed reducer.
The technical scheme for realizing the purpose of the utility model is as follows:
the utility model provides a vertical speed reducer with dry well sealing mechanism, includes hollow structure's box, rotates the output shaft of installing in the box and one end runs through the box, locates in the box and coaxial fixed mounting is at epaxial output gear, output gear's below is equipped with the dry well sealing mechanism of fixed setting, output gear's bottom is equipped with annular lack groove, dry well sealing mechanism's top extends to in the annular lack groove, one side that the axle center was kept away from to the annular lack groove is equipped with the first annular conical surface of outside slope setting, the bottom of first annular conical surface is parallel and level mutually with output gear's bottom.
Further, one side of the annular groove away from the axle center is provided with a first annular surface and a second annular conical surface which are sequentially connected, the first annular surface is vertically arranged, the second annular conical surface is arranged in an outward inclined mode and is connected with the top of the first annular conical surface, and the top of the first annular conical surface is higher than the bottom of the first annular surface.
Further, a second annular surface which is horizontally arranged is connected between the first annular surface and the second annular conical surface.
Further, first bearing frame and second bearing frame are installed to the inner chamber top of box and top symmetry, be connected with first bearing and second bearing between first bearing frame and second bearing frame and the output shaft respectively, the top of first bearing frame is equipped with the stifle of fixed mounting at the box top, the bottom of second bearing frame is equipped with the perspective lid of fixed mounting at the box bottom, the oil blanket is installed to the interference between perspective lid and the output shaft, dry well sealing mechanism is the dry well cover of fixed mounting at the top of second bearing frame, all be equipped with the clearance between the top and side and the annular lack groove of dry well cover.
Further, an annular baffle is arranged at the top of one side of the dry well cover, which is far away from the axle center.
Further, the annular baffle is arranged obliquely downwards.
Further, the box body is provided with a grease nipple seat, the through cover is provided with an oil inlet channel, the inlet of the oil inlet channel is provided with a pipeline communicated with the grease nipple seat, and the outlet is communicated with a second bearing.
Further, still including rotating the input shaft of installing in the box and one end runs through the box, parallel between input shaft and the output shaft is equipped with first jackshaft and second jackshaft, the transmission is connected with first gear pair between input shaft and the first jackshaft, the transmission is connected with the second gear pair between first jackshaft and the second jackshaft, coaxial being equipped with the intermediate gear that has output gear engaged with on the second jackshaft, input shaft, first jackshaft, second jackshaft and output shaft are along the dislocation set from top to bottom in proper order of horizontal direction.
By adopting the technical scheme, the utility model has the following beneficial effects:
(1) According to the utility model, the side wall of the annular groove far away from the center is optimized into the first annular conical surface which is inclined outwards from the traditional annular surface which is arranged vertically, so that lubricating oil can be thrown out when the lubricating oil splashes into the annular groove of the output gear, and the accumulation of the lubricating oil is avoided, so that the oil leakage risk of the vertical speed reducer is effectively reduced.
(2) According to the utility model, the second annular conical surface is arranged on the side wall of the annular groove far away from the center, so that an upward concave notch is formed with the first annular conical surface, the space capable of containing lubricating oil can be increased, meanwhile, the lubricating oil can be effectively prevented from climbing up, and the lubricating oil is further prevented from entering the inside of the dry well sealing mechanism.
(3) According to the utility model, the second annular surface is arranged, so that when the lubricating oil accumulated between the first annular conical surface and the second annular conical surface naturally drops due to the loss of the centrifugal force generated by high-speed rotation, the lubricating oil cannot spread on the first annular surface due to tension, and the lubricating oil is further prevented from entering the dry well sealing mechanism.
(4) The dry well sealing mechanism adopts the dry well cover fixedly arranged at the top of the second bearing, and the second bearing is arranged in the box body, so that the dry well cover is realized. The second bearing and the second bearing form an integral structure, the installation and the disassembly are simpler,
(5) According to the utility model, the annular baffle table is arranged, so that lubricating oil is effectively prevented from climbing up and crossing the dry well cover when shaking, and the oil leakage risk is further reduced.
(6) The annular baffle table is obliquely downwards arranged, so that the effect of blocking the upward climbing of the lubricating oil is improved, and meanwhile, the lubricating oil which climbs up to the position can be guided to fall back into the box body obliquely downwards.
(7) The utility model is provided with the independent oil inlet channel for providing lubricating oil for the second bearing, thereby solving the problem of lubrication of the second bearing arranged in the sealed space of the dry well and prolonging the service life of the second bearing.
(8) The three-stage speed reduction device is provided with three-stage speed reduction, and the input shaft, the first intermediate shaft, the second intermediate shaft and the output shaft are arranged in a staggered mode, so that occupied space in the horizontal direction is saved, the whole structure is more compact, and the overall dimension is smaller.
Drawings
In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments that are illustrated in the appended drawings, in which:
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is an enlarged view of a portion of fig. 1 according to the present utility model.
The reference numerals in the drawings are:
the oil seal box comprises a box body 1, an input shaft 2, a first intermediate shaft 3, a second intermediate shaft 4, an output shaft 5, an output gear 6, an annular notch 6-1, a first annular surface 6-1-1, a second annular surface 6-1-2, a second annular conical surface 6-1-3, a first annular conical surface 6-1-4, a first bearing seat 7, a second bearing seat 8, a first bearing 9, a second bearing 10, a seal cover 11, a through cover 12, an oil inlet channel 12-1, an oil seal 13, a dry well cover 14, an annular baffle 14-1, a grease nipple seat 15 and a pipeline 16.
Detailed Description
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Example 1
The vertical speed reducer with the dry well sealing mechanism as shown in fig. 1 and 2 comprises a box body 1 with a hollow structure, an input shaft 2, a first intermediate shaft 3, a second intermediate shaft 4 and an output shaft 5 which are rotatably installed in the box body 1 in sequence from left to right and are arranged in parallel, wherein the upper end of the input shaft 2 and the lower end of the output shaft 5 respectively penetrate through the top and the bottom of the box body 1. The input shaft 2 and the first intermediate shaft 3 are in transmission connection with a first gear pair, the first intermediate shaft 3 and the second intermediate shaft 4 are in transmission connection with a second gear pair, the second intermediate shaft 4 is coaxially and fixedly provided with an intermediate gear, and the output shaft 5 is coaxially and fixedly provided with an output gear 6 meshed with the intermediate gear, so that a three-stage transmission speed reducer is formed.
In order to reduce the transverse size of the vertical speed reducer, the input shaft 2, the first intermediate shaft 3, the second intermediate shaft 4 and the output shaft 5 of the embodiment are sequentially arranged in a vertically staggered mode along the horizontal direction, so that the occupied space in the horizontal direction is saved, and meanwhile, the overall structure is more compact.
The top of the inner cavity of the box body 1 and the top of the inner cavity of the box body are symmetrically provided with a first bearing seat 7 and a second bearing seat 8, a first bearing 9 and a second bearing 10 are respectively connected between the first bearing seat 7 and the second bearing seat 8 and the output shaft 5, the top of the first bearing seat 7 is provided with a blank cap 11 fixedly arranged at the top of the box body 1, the bottom of the second bearing seat 8 is provided with a transparent cap 12 fixedly arranged at the bottom of the box body 1, an oil seal 13 is arranged between the transparent cap 12 and the output shaft 5 in an interference manner, a dry well sealing mechanism is arranged below the output gear 6, the bottom of the dry well sealing mechanism is provided with an annular groove 6-1, the dry well sealing mechanism is a dry well cover 14 fixedly arranged at the top of the second bearing seat 8, and the top of the dry well cover 14 extends into the annular groove 6-1, so that a dry well sealing space is formed by the dry well sealing mechanism, the output shaft 2, the output gear 6, the second bearing seat 8 and the oil seal 13. At the same time, gaps are arranged between the top and the side edges of the dry well cover 14 and the annular groove 6-1, so that friction is avoided.
The annular groove 6-1 is provided with a first annular surface 6-1-1, a second annular surface 6-1-2, a second annular conical surface 6-1-3 and a first annular conical surface 6-1-4 which are arranged in a connecting mode on one side, far away from the axis, of the annular groove, wherein the second annular surface 6-1-2 is arranged vertically, the second annular surface 6-1-2 is perpendicular to the first annular surface 6-1 and extends outwards, the second annular conical surface 6-1-3 and the first annular conical surface 6-1-4 are arranged obliquely outwards, the top of the first annular conical surface 6-1-4 is higher than the bottom of the second annular conical surface 6-1-3, and the bottom of the first annular conical surface 6-1-4 is flush with the bottom of the output gear 6. The side wall of the annular groove 6-1 far away from the center is optimized into the first annular conical surface 6-1-4 which is inclined outwards from the traditional annular surface which is arranged vertically, so that lubricating oil can be thrown out when the lubricating oil splashes into the annular groove of the output gear, the accumulation of the lubricating oil is avoided, and the oil leakage risk of the vertical speed reducer is effectively reduced. The second annular conical surface 6-1-3 and the first annular conical surface 6-1-4 form an upward concave notch, so that not only can the space for containing lubricating oil be increased, but also the lubricating oil can be effectively prevented from climbing up, and further the lubricating oil is prevented from entering the dry well sealing space. By arranging the second annular surface 6-1-2, when the lubricating oil accumulated in the notch naturally drops due to the loss of the centrifugal force generated by high-speed rotation, the lubricating oil cannot spread on the first annular surface 6-1-1 due to tension, and therefore the lubricating oil enters the sealed space of the dry well.
In order to further reduce the risk of lubricating oil entering the sealed space of the dry well, the top of one side of the dry well cover 14 far away from the axis of the dry well cover is provided with the annular baffle 14-1, so that the lubricating oil is effectively prevented from climbing up to cross the dry well cover 14 when shaking, and meanwhile, the annular baffle 14-1 is obliquely arranged downwards and can guide the lubricating oil climbing up to the place to fall back into the box body 1 obliquely downwards.
Due to the arrangement of the dry well sealing structure, the second bearing 8 is completely isolated from the lubricating oil in the box body 1, in order to prolong the service life of the second bearing 8, in this embodiment, the box body 1 is provided with the grease nipple seat 15, the oil inlet channel 12-1 is arranged on the through cover 12, the inlet of the oil inlet channel 12-1 is provided with the pipeline 16 communicated with the grease nipple seat 15, and the outlet is communicated with the second bearing 8, so that the lubricating oil is provided for the second bearing 8, and the problem of lubrication of the bearing in the dry well sealing space is solved.
According to the embodiment, the side wall of the annular groove 6-1 far away from the center is optimized into the first annular conical surface 6-1-4 which is inclined outwards from the traditional annular surface which is arranged vertically, so that lubricating oil can be thrown out when the lubricating oil splashes into the annular groove 6-1 of the output gear 6, accumulation of the lubricating oil is avoided, and the oil leakage risk of the vertical speed reducer is effectively reduced.
While the foregoing is directed to embodiments of the present utility model, other and further details of the utility model may be had by the present utility model, it should be understood that the foregoing description is merely illustrative of the present utility model and that no limitations are intended to the scope of the utility model, except insofar as modifications, equivalents, improvements or modifications are within the spirit and principles of the utility model.
Claims (8)
1. A vertical speed reducer with dry well sealing mechanism, its characterized in that: including hollow structure's box, rotate the output shaft of installing in the box and one end runs through the box, locate in the box and coaxial fixed mounting is at output epaxial output gear, output gear's below is equipped with the dry well sealing mechanism of fixed setting, output gear's bottom is equipped with annular lack groove, dry well sealing mechanism's top extends to in the annular lack groove, one side that the axle center was kept away from to annular lack groove is equipped with the first annular conical surface of outside slope setting, the bottom of first annular conical surface is parallel and level mutually with output gear's bottom.
2. The vertical speed reducer with dry well sealing mechanism of claim 1, wherein: the annular groove is provided with a first annular surface and a second annular conical surface which are sequentially connected, the first annular surface is vertically arranged, the second annular conical surface is arranged in an outward inclined mode and is connected with the top of the first annular conical surface, and the top of the first annular conical surface is higher than the bottom of the first annular surface.
3. The vertical speed reducer with dry well sealing mechanism of claim 2, wherein: and a second annular surface which is horizontally arranged is connected between the first annular surface and the second annular conical surface.
4. The vertical speed reducer with dry well sealing mechanism of claim 1, wherein: first bearing frame and second bearing frame are installed to the inner chamber top of box and top symmetry, be connected with first bearing and second bearing between first bearing frame and second bearing frame and the output shaft respectively, the top of first bearing frame is equipped with the stifle of fixed mounting at the box top, the bottom of second bearing frame is equipped with the perspective lid of fixed mounting at the box bottom, the oil blanket is installed to the interference between perspective lid and the output shaft, dry well sealing mechanism is the dry well cover of fixed mounting at the top of second bearing frame, all be equipped with the clearance between the top and side and the annular lack groove of dry well cover.
5. The vertical speed reducer with dry well sealing mechanism of claim 4, wherein: an annular baffle is arranged at the top of one side of the dry well cover, which is far away from the axle center.
6. The vertical speed reducer with dry well sealing mechanism of claim 5, wherein: the annular baffle is obliquely downwards arranged.
7. The vertical speed reducer with dry well sealing mechanism of claim 4, wherein: the box body is provided with a grease nipple seat, the transparent cover is provided with an oil inlet channel, the inlet of the oil inlet channel is provided with a pipeline communicated with the grease nipple seat, and the outlet of the oil inlet channel is communicated with a second bearing.
8. The vertical speed reducer with dry well sealing mechanism according to any one of claims 1 to 7, wherein: the novel gear box is characterized by further comprising an input shaft which is rotatably arranged in the box body and one end of which penetrates the box body, a first intermediate shaft and a second intermediate shaft are arranged between the input shaft and the output shaft in parallel, a first gear pair is connected between the input shaft and the first intermediate shaft in a transmission manner, a second gear pair is connected between the first intermediate shaft and the second intermediate shaft in a transmission manner, an intermediate gear meshed with the output gear is coaxially arranged on the second intermediate shaft, and the input shaft, the first intermediate shaft, the second intermediate shaft and the output shaft are sequentially arranged in a staggered manner along the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321349063.9U CN219734160U (en) | 2023-05-31 | 2023-05-31 | Vertical speed reducer with dry well sealing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321349063.9U CN219734160U (en) | 2023-05-31 | 2023-05-31 | Vertical speed reducer with dry well sealing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219734160U true CN219734160U (en) | 2023-09-22 |
Family
ID=88059243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321349063.9U Active CN219734160U (en) | 2023-05-31 | 2023-05-31 | Vertical speed reducer with dry well sealing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219734160U (en) |
-
2023
- 2023-05-31 CN CN202321349063.9U patent/CN219734160U/en active Active
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