CN213393447U

CN213393447U - Oil leakage prevention speed reducer

Info

Publication number: CN213393447U
Application number: CN202022340324.3U
Authority: CN
Inventors: 张园飞; 卢志国; 田更新; 田立勤
Original assignee: Shandong Oumaite Industrial Equipment Co ltd
Current assignee: Shandong Oumaite Industrial Equipment Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-06-08
Anticipated expiration: 2030-10-20

Abstract

The utility model relates to an oil leakage prevention speed reducer, the power distribution box comprises a box body, be equipped with input shaft and output shaft in the box, all be equipped with drive gear on input shaft and the output shaft, the top of box is equipped with the case lid, be equipped with mounting groove on the box of input shaft lower extreme, the input shaft lower extreme passes through bearing one and rotates and install in mounting groove, two rotation support of bearing are passed through on the case lid in the upper end of input shaft, the lower extreme of bearing two is equipped with the oil scraper ring, the upper end of bearing two is equipped with the last gland one of fixing on the case lid, the bottom of the last drive gear of output shaft is equipped with annular seal groove, the output shaft lower extreme is equipped with the oil dam, the. The utility model discloses the lubrication of inside gear is leaned on the control and the gear rotation of self oil level to splash lubricating oil and is accomplished, and is lubricated more reliable, and does not influence transmission efficiency and transmission precision. The output end is provided with an oil dam, so that oil leakage of the output end is avoided.

Description

Oil leakage prevention speed reducer

Technical Field

The utility model belongs to the technical field of the speed reducer, concretely relates to leak protection oil speed reducer.

Background

The speed reducer is transmission equipment commonly used in the chemical industry, food industry and other industries at present, and the traditional speed reducer has the technical problems of large abrasion and short service life; in order to improve the service life of the speed reducer, oil needs to be coated on a contact part where a transmission shaft and a gear are meshed frequently for lubrication, although the service life of the speed reducer can be prolonged, a small blade is additionally welded on a gear shaft at an input end of some manufacturers at present, the oil is stirred in an oil tank for lubrication, the small blade rotates the oil tank at a high speed, the power consumption of a motor is increased, the transmission efficiency is reduced, the temperature rise of the speed reducer is increased, meanwhile, the small blade has a falling wind test, if the small blade falls off, the whole speed reducer can be damaged in a short time, meanwhile, the machining precision of the gear is influenced by welding the small blade, the noise is increased, in addition, the sealing effect of the existing speed reducer is poor, oil leakage is easy to occur during use, and.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an oil leakage prevention speed reducer solves present speed reducer and causes transmission efficiency low at input shaft welding lobular, has the potential safety hazard, and current speed reducer's sealed effect is not good in addition, and oil leak very easily during the use causes the problem of pollution.

The utility model relates to an oil leakage prevention speed reducer, which comprises a box body, wherein an input shaft and an output shaft are arranged in the box body, transmission gears are arranged on the input shaft and the output shaft, a box cover is arranged at the top of the box body, a mounting groove is arranged on the box body at the lower end of the input shaft, the lower end of the input shaft is rotatably arranged in the mounting groove through a bearing I, the upper end of the input shaft passes through the box cover and is rotatably supported on the box cover through a bearing II, an oil baffle ring is arranged at the lower end of the bearing II, an upper gland I fixed on the box cover is arranged at the upper end of the bearing II, a joint type pressure filling oil cup I is arranged on the upper gland I, a framework oil seal I is arranged between the upper gland I and the input shaft, an annular seal groove is arranged at the bottom of the transmission gear on the output shaft, and a framework oil seal II is arranged below the bearing III, the upper end of the output shaft is rotatably arranged on the box cover through a bearing IV, an oil retainer ring is also arranged below the bearing IV, an upper gland II fixed on the box cover is arranged above the bearing IV, and a joint type pressure filling oil cup II is arranged on the upper gland II. The oil dam and the annular sealing groove form a labyrinth seal.

The top of the transmission gear of the output shaft is provided with an output shaft sleeve sleeved on the output shaft, and the top of the output shaft sleeve is in contact with the oil retaining ring below the bearing. The oil scraper ring and the transmission gear are convenient to install.

At least one transmission shaft is arranged between the output shaft and the input shaft, a transmission gear for transmission is arranged on the transmission shaft, an installation groove is also formed in a box body at the lower end of the transmission shaft, the lower end of the transmission shaft is rotatably installed in the installation groove through a bearing five, the upper end of the transmission shaft is rotatably supported on a box cover through a bearing six, an oil retainer ring is also arranged at the lower end of the bearing six, a first adjusting washer is arranged at the upper end of the bearing six, and the first adjusting washer is in contact with a first upper. The gear transmission device is suitable for gear transmission of all stages, such as single-stage or two-stage or three-stage transmission.

And a second adjusting washer is arranged above the second bearing, and an annular pressing table for pressing the second adjusting washer is arranged at the bottom of the first upper pressing cover. The installation of bearing is conveniently adjusted.

An elastic coupling is fixed at the upper end of the input shaft, an input flange is arranged above the first upper gland, the input flange is fixed on the first upper gland and the box cover through bolts, a positioning boss is arranged at the bottom of the input flange, and a positioning groove matched with the positioning boss is arranged at the top of the first upper gland. The input shaft of the input end is elastically connected with the motor shaft, the input flange adopts a positioning structure, the assembly precision is high, the noise is low, and the subsequent maintenance is convenient.

The lower end of the output shaft penetrates through the box body, an output flange is fixed at the bottom of the box body at the lower end of the output shaft, a positioning support boss extending into a mounting hole of a bearing III on the box body is arranged in the middle of the top of the output flange, and a framework oil seal II is arranged between the output shaft and the output flange. The output flange adopts an independent structure, is convenient to replace and has stronger universality.

The outer sides of the box cover and the box body top are provided with positioning holes, and taper pins are arranged in the positioning holes. The box cover is convenient to install.

And the bottom of the transmission gear at the lower end of the driven shaft is provided with an adjusting shaft sleeve, and the lower end of the adjusting shaft sleeve is in contact with the inner ring of the bearing V.

The gear box adopts a hard tooth surface technology, and has the advantages of high transmission efficiency, low energy consumption, stable transmission, low noise, large transmission torque and the like.

Compared with the prior art, the utility model has the advantages of:

1. the lubrication of the internal gear is completed by controlling the oil level of the internal gear and splashing lubricating oil by the rotation of the gear, so that the lubrication is more reliable, and the transmission efficiency and the transmission precision are not influenced.

2. The gear and the lower bearing at the non-output end are lubricated in an oil pool in a lubricating mode, so that the lubricating effect is good, the lubrication is more reliable, and the gear or the bearing is prevented from being damaged and scrapped due to oil shortage caused by other parts such as failure of an oil pump.

3. The upper bearing is lubricated by grease, the lower part of the bearing is provided with an oil retainer ring which separates the grease from an oil pool at the lower part, the grease loss of the upper bearing is prevented, the lubrication reliability of the upper bearing is ensured, and the upper part of the bearing is provided with an oil hole which can be used for grease lubrication periodically.

4. The lower bearing of output end adopts grease lubrication, and the design has the skeleton oil blanket, and the cooperation sets up the oil dam at the output of speed reducer box, and the oil dam external diameter adopts labyrinth structure with output gear wheel, has controlled the oil level through the dipstick, can stop lubricating oil completely and flow into the lower bearing of output end indoor from the oil dam to stop the oil leak of output end.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1;

in the figure: 1. an input flange; 2, an elastic coupling; 3. an input shaft; 4. a first upper gland is arranged; 5. a box cover; 6. a box body; 7. a drive shaft; 8. an annular seal groove; 9. installing a groove; 10. adjusting the shaft sleeve; 11. an output shaft; 12. a framework oil seal II; 13. an oil dam; 14. an output flange; 15. a transmission gear; 16. a taper pin; 17. an output shaft sleeve; 18. an oil slinger; 19. a second upper gland; 20. adjusting a first gasket; 21. a joint type pressure filling oil cup I; 22. framework oil seal I; 23. and adjusting the second gasket.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, the utility model relates to an oil leakage prevention speed reducer, which comprises a box body 6, an input shaft 3 and an output shaft 11 are arranged in the box body 6, a transmission gear 15 is arranged on each of the input shaft 3 and the output shaft 11, a box cover 5 is arranged on the top of the box body 6, a mounting groove 9 is arranged on the box body 6 at the lower end of the input shaft 3, the lower end of the input shaft 3 is rotatably mounted in the mounting groove 9 through a bearing, the upper end of the input shaft 3 passes through the box cover 5 and is rotatably supported on the box cover 5 through a bearing II, an oil baffle ring 18 is arranged at the lower end of the bearing II, a first upper gland 4 fixed on the box cover 5 is arranged at the upper end of the bearing II, a first joint type pressure injection oil cup 21 is arranged on the first upper gland 4, a first framework oil seal 22 is arranged between the first gland 4 and the input shaft 3, an annular seal groove 8 is arranged at the bottom, the lower end of the output shaft 11 is rotatably supported on the box body 6 through a bearing III, a framework oil seal II 12 is arranged below the bearing III, the upper end of the output shaft 11 is rotatably installed on the box cover 5 through a bearing IV, an oil retainer ring 18 is also arranged below the bearing IV, an upper gland II 19 fixed on the box cover 5 is arranged above the bearing IV, and a joint type pressure filling oil cup II is arranged on the upper gland II 19.

An output shaft sleeve 17 sleeved on the output shaft 11 is arranged at the top of the transmission gear 15 of the output shaft 11, and the top of the output shaft sleeve 17 is in contact with an oil slinger 18 below the bearing four.

At least one transmission shaft 7 is arranged between the output shaft 11 and the input shaft 3, a transmission gear 15 for transmission is arranged on the transmission shaft 7, an installation groove 9 is also arranged on a box body 6 at the lower end of the transmission shaft 7, the lower end of the transmission shaft 7 is rotatably installed in the installation groove 9 through a bearing five, the upper end of the transmission shaft 7 is rotatably supported on the box cover 5 through a bearing six, an oil retainer 18 is also arranged at the lower end of the bearing six, a first adjusting washer 20 is arranged at the upper end of the bearing six, and the first adjusting washer 20 is in contact with a first upper gland 4.

And a second adjusting washer 23 is arranged above the second bearing, and an annular pressing table for pressing the second adjusting washer 23 is arranged at the bottom of the first upper pressing cover 4.

An elastic coupling 2 is fixed at the upper end of the input shaft 3, an input flange 1 is arranged above the first upper gland 4, the input flange 1 is fixed on the first upper gland 4 and the box cover 5 through bolts, a positioning boss is arranged at the bottom of the input flange 1, and a positioning groove matched with the positioning boss is arranged at the top of the first upper gland 4.

The lower end of the output shaft 11 penetrates through the box body 6, an output flange 14 is fixed at the bottom of the box body 6 at the lower end of the output shaft 11, a positioning support boss extending into a mounting hole of the bearing three on the box body 6 is arranged in the middle of the top of the output flange 14, and the framework oil seal two 12 is arranged between the output shaft 11 and the output flange 14.

And positioning holes are formed in the outer sides of the tops of the box cover 5 and the box body 6, and taper pins 16 are arranged in the positioning holes.

An adjusting shaft sleeve 10 is arranged at the bottom of a transmission gear 15 at the lower end of the driven shaft, the lower end of the adjusting shaft sleeve 10 is in contact with an inner ring of the bearing five, and a dipstick is arranged in the box body 6.

When the oil-saving device works, the output shaft 3 is connected with the output end of the input motor through the elastic coupling 2, the input flange 1 is fixed with the input motor, the output flange 14 is fixed with the output device, then the output shaft 11 is connected with the stirring device, the input motor rotates to drive the input shaft 3 to rotate, so that the transmission gear 15 of the input shaft 3 is driven to rotate, then the transmission shaft 7 is driven to transmit, power is transmitted to the output shaft 11 to be output, lubrication of internal gears is completed by means of control of oil level of the internal gears and splashing lubricating oil of the transmission gear, the lubrication is more reliable, and the lower end of the output shaft 11 can be prevented from leaking oil through the matching of the.

To sum up, the utility model discloses the lubrication of inside gear is accomplished by the control and the gear rotation of self oil level lubricating oil that splashes, and is lubricated more reliable, and does not influence transmission efficiency and transmission precision. The gear and the lower bearing at the non-output end are lubricated in an oil pool in a lubricating mode, so that the lubricating effect is good, the lubrication is more reliable, and the gear or the bearing is prevented from being damaged and scrapped due to oil shortage caused by other parts such as failure of an oil pump. The upper bearing is lubricated by grease, the lower part of the bearing is provided with an oil retainer ring which separates the grease from an oil pool at the lower part, the grease loss of the upper bearing is prevented, the lubrication reliability of the upper bearing is ensured, and the upper part of the bearing is provided with an oil hole which can be used for grease lubrication periodically. The lower bearing of output end adopts grease lubrication, and the design has the skeleton oil blanket, and the cooperation sets up the oil dam at the output of speed reducer box, and the oil dam external diameter adopts labyrinth structure with output gear wheel, has controlled the oil level through the dipstick, can stop lubricating oil completely and flow into the lower bearing of output end indoor from the oil dam to stop the oil leak of output end.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

In the description of the present invention, the terms "inside", "outside", "longitudinal", "lateral", "up", "down", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description of the present invention rather than requiring the present invention to be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Claims

1. The utility model provides an oil leakage prevention speed reducer, includes box (6), is equipped with input shaft (3) and output shaft (11) in box (6), all is equipped with drive gear (15) on input shaft (3) and output shaft (11), and the top of box (6) is equipped with case lid (5), its characterized in that: a mounting groove (9) is arranged on a box body (6) at the lower end of an input shaft (3), the lower end of the input shaft (3) is rotatably mounted in the mounting groove (9) through a first bearing, the upper end of the input shaft (3) penetrates through a box cover (5) and is rotatably supported on the box cover (5) through a second bearing, an oil retainer ring (18) is arranged at the lower end of the second bearing, a first upper gland (4) fixed on the box cover (5) is arranged at the upper end of the second bearing, a first joint type pressure injection oil cup (21) is arranged on the first upper gland (4), a first framework oil seal (22) is arranged between the first upper gland (4) and the input shaft (3), an annular seal groove (8) is arranged at the bottom of a transmission gear (15) on the output shaft (11), a raised circular sleeve type oil dam (13) extending into the annular seal groove (8) is arranged on the box body (6) on the outer side of the lower end of the output, a framework oil seal II (12) is arranged below the bearing III, the upper end of the output shaft (11) is rotatably installed on the box cover (5) through a bearing IV, an oil retainer ring (18) is also arranged below the bearing IV, an upper gland II (19) fixed on the box cover (5) is arranged above the bearing IV, and a joint type pressure filling oil cup II is arranged on the upper gland II (19).

2. An oil-leakage-preventing speed reducer according to claim 1, wherein: an output shaft sleeve (17) sleeved on the output shaft (11) is arranged at the top of a transmission gear (15) of the output shaft (11), and the top of the output shaft sleeve (17) is in contact with oil slingers (18) below four bearings.

3. An oil-leakage-preventing speed reducer according to claim 1 or 2, wherein: be equipped with between output shaft (11) and input shaft (3) and be no less than one transmission shaft (7), be equipped with on transmission shaft (7) and be used for driven drive gear (15), also be equipped with mounting groove (9) on box (6) of transmission shaft (7) lower extreme, transmission shaft (7) lower extreme passes through five rotations of bearing and installs in mounting groove (9), the upper end of transmission shaft (7) is passed through six rotation supports of bearing on case lid (5), the lower extreme of six bearings also is equipped with oil retainer ring (18), the upper end of six bearings is equipped with adjusting washer (20), adjusting washer (20) and last gland (4) contact.

4. An oil-leakage-preventing speed reducer according to claim 3, wherein: an adjusting washer II (23) is arranged above the bearing II, and an annular pressing table for pressing the adjusting washer II (23) is arranged at the bottom of the upper pressing cover I (4).

5. An oil-leakage-preventing speed reducer according to claim 4, wherein: an elastic coupling (2) is fixed at the upper end of the input shaft (3), an input flange (1) is arranged above the upper gland I (4), the input flange (1) is fixed on the upper gland I (4) and the box cover (5) through bolts, a positioning boss is arranged at the bottom of the input flange (1), and a positioning groove matched with the positioning boss is arranged at the top of the upper gland I (4).

6. An oil-leakage-preventing speed reducer according to claim 5, wherein: the lower end of the output shaft (11) penetrates through the box body (6), an output flange (14) is fixed at the bottom of the box body (6) at the lower end of the output shaft (11), a positioning support boss extending into a mounting hole of the bearing three on the box body (6) is arranged in the middle of the top of the output flange (14), and a framework oil seal II (12) is arranged between the output shaft (11) and the output flange (14).

7. An oil-leakage-preventing speed reducer according to claim 6, wherein: positioning holes are arranged on the outer sides of the tops of the box cover (5) and the box body (6), and taper pins (16) are arranged in the positioning holes.

8. An oil-leakage-preventing speed reducer according to claim 3, wherein: an adjusting shaft sleeve (10) is arranged at the bottom of a transmission gear (15) at the lower end of the driven shaft, the lower end of the adjusting shaft sleeve (10) is in contact with an inner ring of the bearing five, and a dipstick is arranged in the box body (6).