CN215596364U

CN215596364U - Oil leakage prevention vertical speed reducer

Info

Publication number: CN215596364U
Application number: CN202121858340.XU
Authority: CN
Inventors: 逯利超; 李涛; 陈玉勇; 焦路生
Original assignee: Henan Hengxing Science and Technology Co Ltd
Current assignee: Henan Hengxing Science and Technology Co Ltd
Priority date: 2021-08-10
Filing date: 2021-08-10
Publication date: 2022-01-21
Anticipated expiration: 2031-08-10

Abstract

The utility model relates to an oil leakage prevention vertical speed reducer, which comprises a speed reducer body, wherein the speed reducer body comprises a case, the right part of the bottom end of the case is provided with a first through hole, the left part and the right part of the case are respectively provided with an output shaft and an input shaft, the lower end of the input shaft penetrates through the first through hole to extend out of the outer side of the case and is connected with a belt wheel, the speed reducer further comprises a sealing part and a ventilation part, the sealing part comprises a bearing, an upper oil seal, a lower oil seal and an end cover, the bearing, the upper oil seal and the lower oil seal are all arranged in the first through hole, a circular ring plate of the end cover is connected with the bottom of the case through a first screw, the upper end surface of the circular ring plate is provided with a first groove, the outer bottom surface of the case is provided with a second groove, the second groove and the first groove form a circular ring hole cavity, an elastic ring is embedded in the circular hole, the ventilation part comprises a vent hole, a shielding plate and a rotating shaft, and aims to solve the problem that the vent hole of the vertical speed reducer in the prior art is easily blocked by dust, the lubricating oil is easy to leak from the connecting seam between the end cover and the bottom of the vertical speed reducer.

Description

Oil leakage prevention vertical speed reducer

Technical Field

The utility model relates to the technical field of speed reducers, in particular to an oil leakage preventing vertical speed reducer.

Background

The reducer is an independent part consisting of a gear transmission, a worm transmission and a gear-worm transmission which are enclosed in a rigid shell and is commonly used as a speed reduction transmission device between a prime mover and a working machine. The reduction gear serves to match the rotational speed and the torque transmission between the prime mover and the working machine or the actuator, and is used in modern machines in a very wide range of applications.

The vertical speed reducer is a component of a wire drawing machine, the temperature in the vertical speed reducer rises in the operation process, the temperature in the vertical speed reducer is higher, the pressure difference between the interior of the vertical speed reducer and the outside is larger, because an oil seal between the bottom of the vertical speed reducer and an input shaft is easy to wear, under the action of the pressure difference, lubricating oil is easy to permeate into an end cover on the input shaft from the worn part of the oil seal, and then leaks from a connecting seam between the end cover and the bottom of the vertical speed reducer, meanwhile, a vent hole of the vertical speed reducer is easy to be blocked by dust, so that the pressure difference between the interior of the vertical speed reducer and the outside is increased, and the lubricating oil is easier to leak from the connecting seam between the end cover and the bottom of the vertical speed reducer.

Disclosure of Invention

The utility model provides an oil leakage prevention vertical speed reducer, aiming at the problems that a vent hole of the vertical speed reducer is easily blocked by dust and lubricating oil is easily leaked from a connecting seam between an end cover and the bottom of the vertical speed reducer in the prior art.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the vertical speed reducer comprises a speed reducer main body, wherein the speed reducer main body comprises a case, a first through hole penetrating through the inner bottom surface and the outer bottom surface of the case is formed in the right part of the bottom end of the case, a vertical output shaft and an input shaft are respectively arranged at the left part and the right part of the case, the upper part of the output shaft extends out of the outer side of the case, the input shaft and the first through hole have the same central axis, the lower end of the input shaft extends out of the outer side of the case through the first through hole and is connected with a belt wheel, and the vertical speed reducer further comprises a sealing part and a ventilating part;

the sealing part comprises a bearing, an upper seal, a lower oil seal and an end cover, wherein the bearing, the upper seal, the lower oil seal and the end cover are coaxial with the input shaft and are sequentially sleeved on the lower part of the input shaft from top to bottom, the bearing, the upper oil seal and the lower oil seal are all installed in a first through hole, the structural sizes of the upper oil seal and the lower oil seal are the same, the end cover is composed of a horizontal circular plate and a cylinder body which is connected to the upper surface of the circular plate and coaxial with the circular plate, the outer ring diameter of the circular plate is larger than the inner diameter of the first through hole, the inner peripheral wall of the circular plate is contacted with the lower peripheral wall of the input shaft, the upper end surface of the circular plate is contacted with the outer bottom surface of the case, the bottoms of the circular plate and the case are connected through a plurality of first screws distributed in an annular mode, and the upper end surface of the circular plate on the inner side of the first screws is provided with an opening, and the upper end surface of the circular plate is provided with an opening which is distributed upwards, The section of the first groove is a semicircle with an upward opening and a downward bulge, a second groove with the same central axis as the first through hole is arranged on the outer bottom surface of the case, the shape and the size of the second groove are the same as those of the first groove, the second groove and the first groove are vertically symmetrical, the second groove and the first groove form a closed circular hole cavity, an elastic ring matched with the circular hole cavity is embedded in the circular hole cavity, the elastic ring is a circular ring body, the outer peripheral wall of the cylinder is in contact with the inner wall of the first through hole, and the upper end surface of the cylinder is in contact with the lower end surface of the lower oil seal;

the ventilating part comprises a ventilating hole, a shielding plate and a rotating shaft, the ventilating hole is arranged at the top end of the case on the right side of the input shaft and is a rectangular through hole penetrating through the inner top surface and the outer top surface of the case, the shielding plate is a horizontal plate body, the center of the shielding plate is provided with a central hole penetrating through the upper surface and the lower surface of the shielding plate, the shielding plate on the right side of the central hole is provided with a communicating hole penetrating through the upper surface and the lower surface of the shielding plate, the inner wall of the communicating hole is connected with a filter screen, the shielding plate on the right side of the filter screen is provided with a plurality of right mounting holes penetrating through the upper surface and the lower surface of the shielding plate, the right mounting holes are linearly distributed on the shielding plate from front to back, the left part of the shielding plate is provided with a plurality of left mounting holes penetrating through the upper surface and the lower surface of the shielding plate, the left mounting holes and the right mounting holes are identical in structural shape and are bilaterally symmetrical, and the lower surface of the shielding plate is in contact with the outer top surface of the case, the filter screen covers the vent hole, a plurality of positioning holes which correspond to the right mounting hole up and down are arranged on the outer top surface of the case, positioning columns penetrate through the right mounting hole and the positioning holes which correspond up and down, the positioning columns are cylinders which are coaxial with the right mounting hole, circular check blocks which are coaxial with the positioning columns are arranged at the tops of the positioning columns, the outer sides of the right mounting hole are arranged in the circular check blocks, the diameter of each circular check block is larger than that of each positioning column, the rotating shaft comprises a coaxial circular rod body and a cylinder which is connected to the upper end of the circular rod body, the diameter of the circular rod body is smaller than that of the cylinder, threads are arranged on the outer peripheral wall of the lower portion of the circular rod body, screw holes which correspond to the central hole up and down are arranged on the outer top surface of the case, the circular rod body of the rotating shaft penetrates downwards into the central hole and the screw holes, the lower portion of the circular rod body is in threaded connection with the screw holes, and the diameter of the central hole is smaller than that of the central hole, the upper end of the round rod body is arranged outside the central hole and has a distance with the outer end of the central hole.

Further, the elastic ring is a circular ring body made of rubber.

Further, the inner diameter of the right mounting hole is the same as the inner diameter of the positioning hole.

Furthermore, the depth of the positioning hole is smaller than the distance between the inner top surface and the outer top surface of the case.

Further, the inner peripheral wall diameter of the cylindrical body of the end cap is larger than the diameter of the lower peripheral wall of the input shaft.

Through the technical scheme, the utility model has the beneficial effects that:

1. the utility model is arranged on a wire drawing machine, the wire drawing machine is started, the utility model operates, the upper oil seal, the lower oil seal and the end cover seal lubricating oil in a case, when the upper oil seal is worn, the lower oil seal and the end cover can block the lubricating oil, and meanwhile, because the elastic ring is arranged between the end cover and the outer bottom surface of the case, when the lower oil seal is also worn, the elastic ring blocks the lubricating oil to prevent the lubricating oil from leaking from the contact part of the end cover and the outer bottom surface of the case, namely, the lubricating oil in the utility model is not easy to leak.

2. When the oil seal device runs, the filter screen covers the vent hole, the vent hole is not easy to be blocked, the vent hole facilitates the air in the case to be communicated with the outside air, so the pressure difference between the inside of the case and the outside is close to zero, lubricating oil is not easy to permeate into the upper oil seal, the lower oil seal and the end cover, namely the vent hole is not easy to be blocked by dust, and the lubricating oil is not easy to leak.

3. When the dust-proof air conditioner does not work, the positioning column is pulled out, the shielding plate is rotated, the left portion of the shielding plate is rotated to the position above the air vent to cover the air vent, and the positioning column penetrates through the left mounting hole and the positioning hole, so that fine dust cannot enter a case, namely the air vent is not easily blocked by the dust.

Drawings

FIG. 1 is a front (partially cut-away) view of the present invention;

FIG. 2 is a top view of the shutter of the present invention;

FIG. 3 is an enlarged schematic view of FIG. 1A;

fig. 4 is an enlarged schematic view of fig. 1B.

The reference numbers in the drawings are as follows: the automatic positioning device comprises a chassis, a first through hole 1a, an output shaft 2, an input shaft 3, a belt wheel 3a, a bearing 4a, an upper oil seal 4b, a lower oil seal 4c, an air vent 5a, a shielding plate 5b, a rotating shaft 5c, a positioning column 6, a circular stop block 6a, a positioning hole 10a, a circular annular plate 40a, a cylinder 40b, a central hole 50a, a filter screen 50b, a right mounting hole 50c, a left mounting hole 50d, a first screw 400a and an elastic ring 400b, wherein the chassis is provided with the first through hole 1a, the output shaft 2, the input shaft 3, the belt wheel 3a and the elastic ring 400 a.

Detailed Description

The utility model is further described with reference to the following figures and detailed description:

as shown in fig. 1 to 4, the oil leakage preventing vertical speed reducer comprises a speed reducer body, the speed reducer body comprises a case 1, a first through hole 1a penetrating through inner and outer bottom surfaces of the case 1 is formed in the right portion of the bottom end of the case 1, a vertical output shaft 2 and an input shaft 3 are respectively installed in the left portion and the right portion of the case 1, the upper portion of the output shaft 2 extends out of the outside of the case 1, the input shaft 3 and the first through hole 1a share the same central axis, the lower end of the input shaft 3 extends out of the outside of the case 1 through the first through hole 1a and is connected with a belt pulley 3a, and the oil leakage preventing vertical speed reducer further comprises a closed portion and a ventilation portion.

The sealing part comprises a bearing 4a, an upper oil seal 4b, a lower oil seal 4c and an end cover, wherein the bearing 4a, the upper oil seal 4b, the lower oil seal 4c and the end cover are coaxial with the input shaft 3 and are sequentially sleeved on the lower part of the input shaft 3 from top to bottom, the bearing 4a, the upper oil seal 4b and the lower oil seal 4c are all installed in a first through hole 1a, the upper oil seal 4b and the lower oil seal 4c are identical in structure size, the end cover comprises a horizontal circular ring plate 40a and a cylinder body 40b which is connected to the upper surface of the circular ring plate 40a and is coaxial with the circular ring plate 40a, the diameter of the outer ring of the circular ring plate 40a is larger than the inner diameter of the first through hole 1a, the inner peripheral wall of the circular ring plate 40a is in contact with the peripheral wall of the lower part of the input shaft 3, the upper end surface of the circular ring plate 40a is in contact with the outer bottom surface of the case 1, the circular ring plate 40a is connected with the bottom of the case 1 through a plurality of first screws 400a in annular distribution, the upper end face of the circular ring-shaped plate 40a on the inner side of the first screws 400a is provided with a circular first groove with an upward opening and the same central axis as the circular ring-shaped plate 40a, the section of the first groove is semicircular with an upward opening and a downward bulge, the outer bottom face of the case 1 is provided with a second groove with the same central axis as the first through hole 1a, the second groove and the first groove are same in shape and size and are vertically symmetrical, the second groove and the first groove form a closed circular ring-shaped hole cavity, an elastic ring 400b matched with the circular ring-shaped hole cavity is embedded in the circular ring-shaped hole cavity, the elastic ring 400b is a circular ring body, the outer peripheral wall of the cylinder 40b is in contact with the inner wall of the first through hole 1a, and the upper end face of the cylinder 40b is in contact with the lower end face of the lower oil seal 4 c.

The ventilating part comprises a ventilating hole 5a, a shielding plate 5b and a rotating shaft 5c, the ventilating hole 5a is a rectangular through hole which is arranged at the top end of the case 1 on the right side of the input shaft 3 and penetrates through the inner top surface and the outer top surface of the case 1, the shielding plate 5b is a horizontal plate body, the center of the shielding plate 5b is provided with a central hole 50a which penetrates through the upper surface and the lower surface of the shielding plate 5b, the shielding plate 5b on the right side of the central hole 50a is provided with a communicating hole which penetrates through the upper surface and the lower surface of the shielding plate 5b, the inner wall of the communicating hole is connected with a filter screen 50b, the shielding plate 5b on the right side of the filter screen 50b is provided with a plurality of right mounting holes 50c which penetrate through the upper surface and the lower surface of the shielding plate 5b, the plurality of right mounting holes 50c are linearly distributed on the shielding plate 5b from front to back, the left part of the shielding plate 5b is provided with a plurality of left mounting holes 50d which penetrate through the upper surface and the lower surface of the shielding plate 5b, the left mounting hole 50d and the right mounting hole 50c are identical in structural shape and symmetrical left and right, the lower surface of the shielding plate 5b is in contact with the outer top surface of the case 1, the filter screen 50b covers the vent hole 5a, the outer top surface of the case 1 is provided with a plurality of positioning holes 10a which vertically correspond to the right mounting hole 50c, positioning columns 6 penetrate through the right mounting hole 50c and the positioning holes 10a which vertically correspond to each other, the positioning columns 6 are cylinders which are coaxial with the right mounting hole 50c, the top of the positioning columns 6 is provided with circular stoppers 6a which are coaxial with the positioning columns 6, the circular stoppers 6a are arranged outside the right mounting hole 50c, the diameter of the circular stoppers 6a is larger than that of the positioning columns 6, the rotating shaft 5c comprises coaxial circular rod bodies and cylinders connected to the upper ends of the circular rod bodies, and the diameter of the circular rod bodies is smaller than that of the cylinders, the lower part periphery wall of the round rod body is equipped with the screw thread, be equipped with the screw hole that corresponds from top to bottom with centre bore 50a on the outer top surface of machine case 1, the round rod body of rotation axis 5c is worn the dress downwards in centre bore 50a and screw hole, the lower part and the screw hole threaded connection of the round rod body, the upper portion of the round rod body is arranged in centre bore 50a and the diameter is less than the diameter of centre bore 50a, the upper end of the round rod body is arranged in the centre bore 50a outside and has the interval with the outer end of centre bore 50 a.

Further, the elastic ring 400b is a circular ring body made of rubber.

Further, the inner diameter of the right mounting hole 50c is the same as the inner diameter of the positioning hole 10 a.

Further, the depth of the positioning hole 10a is smaller than the distance between the inner top surface and the outer top surface of the chassis 1.

Further, the inner peripheral wall diameter of the cylindrical body 40b of the end cap is larger than the diameter of the lower peripheral wall of the input shaft 3.

When the lubricating oil sealing device is arranged on a wire drawing machine and the wire drawing machine is started, the lubricating oil sealing device runs, the upper oil seal 4b, the lower oil seal 4c and the end cover seal lubricating oil in the machine case 1, when the upper oil seal 4b is worn, the lower oil seal 4c and the end cover can block the lubricating oil, and meanwhile, as the elastic ring 400b is arranged between the end cover and the outer bottom surface of the machine case 1, when the lower oil seal 4c is also worn, the elastic ring 400b blocks the lubricating oil to prevent the lubricating oil from leaking from the contact part of the end cover and the outer bottom surface of the machine case 1, namely the lubricating oil in the lubricating oil sealing device is not easy to leak.

When the oil seal structure runs, the filter screen 50b covers the vent hole 5a, the vent hole 5a is not easy to be blocked, the vent hole 5a facilitates the air in the case 1 to be communicated with the outside air, so the pressure difference between the inside of the case 1 and the outside is close to zero, lubricating oil is not easy to permeate into the upper oil seal 4b, the lower oil seal 4c and the end cover, namely the vent hole is not easy to be blocked by dust, and the lubricating oil is not easy to leak.

When the dust-proof air conditioner does not work, the positioning column 6 is pulled out, the shielding plate 5b is rotated, the left part of the shielding plate 5b is rotated to the position above the air vent 5a to cover the air vent 5a, and the positioning column 6 is inserted into the left mounting hole 50d and the positioning hole 10a, so that fine dust cannot enter the case 1, namely the air vent is not easily blocked by the dust.

The present invention is described in detail with reference to the accompanying drawings, however, the above description is not intended to limit the present invention, and various equivalents or equivalent cracked or substituted embodiments of the present invention are included in the scope of the present invention within the scope of the disclosure without departing from the spirit of the present invention.

Claims

1. The vertical speed reducer capable of preventing oil leakage comprises a speed reducer main body, wherein the speed reducer main body comprises a case (1), a first through hole (1 a) penetrating through the inner bottom surface and the outer bottom surface of the case (1) is formed in the right part of the bottom end of the case (1), a vertical output shaft (2) and an input shaft (3) are respectively arranged at the left part and the right part of the case (1), the upper part of the output shaft (2) extends out of the outer side of the case (1), the input shaft (3) and the first through hole (1 a) have the same central axis, the lower end of the input shaft (3) extends out of the outer side of the case (1) through the first through hole (1 a) and is connected with a belt wheel (3 a), and the vertical speed reducer is characterized by further comprising a sealing part and a ventilation part;

the sealing part comprises a bearing (4 a), an upper oil seal (4 b), a lower oil seal (4 c) and an end cover, wherein the bearing (4 a), the upper oil seal (4 b), the lower oil seal (4 c) and the end cover are coaxial with the input shaft (3) and are sequentially sleeved on the lower part of the input shaft (3) from top to bottom, the bearing (4 a), the upper oil seal (4 b) and the lower oil seal (4 c) are all installed in a first through hole (1 a), the upper oil seal (4 b) and the lower oil seal (4 c) are identical in structure size, the end cover is composed of a horizontal circular ring plate (40 a) and a cylinder body (40 b) which is connected to the upper surface of the circular ring plate (40 a) and is coaxial with the circular ring plate (40 a), the diameter of the outer ring plate (40 a) is larger than the inner diameter of the first through hole (1 a), and the inner peripheral wall of the circular ring plate (40 a) is in contact with the lower part of the input shaft (3), the upper end face of the circular ring-shaped plate (40 a) is contacted with the outer bottom face of the case (1), the circular ring-shaped plate (40 a) is connected with the bottom of the case (1) through a plurality of first screws (400 a) distributed in a ring shape, the upper end face of the circular ring-shaped plate (40 a) at the inner side of the plurality of first screws (400 a) is provided with a circular ring-shaped first groove with an upward opening and the same central axis as the circular ring-shaped plate (40 a), the cross section of the first groove is a semicircle with an upward opening and a downward bulge, a second groove with the same central axis as the first through hole (1 a) is arranged on the outer bottom face of the case (1), the second groove and the first groove are same in shape and size and are vertically symmetrical, the second groove and the first groove form a closed circular ring-shaped hole cavity, and an elastic ring (400 b) matched with the circular ring-shaped hole is embedded in the circular ring-shaped hole, the elastic ring (400 b) is a circular ring body, the peripheral wall of the cylinder body (40 b) is contacted with the inner wall of the first through hole (1 a), and the upper end surface of the cylinder body (40 b) is contacted with the lower end surface of the lower oil seal (4 c);

the ventilating part comprises a ventilating hole (5 a), a shielding plate (5 b) and a rotating shaft (5 c), the ventilating hole (5 a) is a rectangular through hole which is arranged at the top end of a case (1) on the right side of the input shaft (3) and penetrates through the inner top surface and the outer top surface of the case (1), the shielding plate (5 b) is a horizontal plate body, a central hole (50 a) which penetrates through the upper surface and the lower surface of the shielding plate (5 b) is formed in the center of the shielding plate (5 b), a communicating hole which penetrates through the upper surface and the lower surface of the shielding plate (5 b) is formed in the shielding plate (5 b) on the right side of the central hole (50 a), a filter screen (50 b) is connected to the inner wall of the communicating hole, a plurality of right mounting holes (50 c) which penetrate through the upper surface and the lower surface of the shielding plate (5 b) are formed in a way that the right mounting holes (50 c) are linearly distributed on the shielding plate (5 b) from front to back, the left part of the shielding plate (5 b) is provided with a plurality of left mounting holes (50 d) penetrating through the upper surface and the lower surface of the shielding plate (5 b), the left mounting holes (50 d) and the right mounting holes (50 c) are identical in structural shape and symmetrical left and right, the lower surface of the shielding plate (5 b) is in contact with the outer top surface of the case (1), the filter screen (50 b) covers the vent holes (5 a), the outer top surface of the case (1) is provided with a plurality of positioning holes (10 a) vertically corresponding to the right mounting holes (50 c), positioning columns (6) penetrate through the vertically corresponding right mounting holes (50 c) and the positioning holes (10 a), the positioning columns (6) are cylinders coaxial with the right mounting holes (50 c), the top parts of the positioning columns (6) are provided with circular stop blocks (6 a) coaxial with the positioning columns (6), the circular stop blocks (6 a) are arranged on the outer sides of the right mounting holes (50 c), the diameter of circular dog (6 a) is greater than the diameter of reference column (6), rotation axis (5 c) include the coaxial round bar body and connect the cylinder in round bar body upper end, the diameter of the round bar body is less than the diameter of cylinder, the lower part periphery wall of the round bar body is equipped with the screw thread, be equipped with the screw hole that corresponds from top to bottom with centre bore (50 a) on the outer top surface of machine case (1), the round bar body of rotation axis (5 c) is worn the dress downwards in centre bore (50 a) and screw hole, the lower part and the screw hole threaded connection of the round bar body, the diameter that just the diameter is less than centre bore (50 a) is arranged in on the upper portion of the round bar body in centre bore (50 a), the upper end of the round bar body is arranged in the centre bore (50 a) outside and has the interval with the outer end of centre bore (50 a).

2. An oil leakage preventing vertical type decelerator according to claim 1, wherein the elastic ring (400 b) is a circular ring body made of rubber.

3. An oil leakage preventing vertical type decelerator according to claim 1, wherein the right mounting hole (50 c) has the same inner diameter as the positioning hole (10 a).

4. An oil leakage preventing vertical type speed reducer according to claim 1, wherein the depth of the positioning hole (10 a) is smaller than the distance between the inner and outer top surfaces of the case (1).

5. An oil leakage preventing vertical type speed reducer according to claim 1, wherein the diameter of the inner peripheral wall of the cylinder (40 b) of the end cover is larger than the diameter of the lower peripheral wall of the input shaft (3).