Uniform refueling speed reducer

Abstract

The utility model provides a uniform refueling speed reducer, and belongs to the technical field of speed reducers. The technical problem that oiling of an existing speed reducer is not uniform enough is solved. The utility model relates to a speed reducer capable of uniformly adding oil, which comprises an input end cover, a first-stage connecting sleeve, a first-stage planetary mechanism, a second-stage connecting sleeve, a second-stage planetary mechanism, a third-stage connecting sleeve, a third-stage planetary mechanism, an output end cover and an output shaft which are sequentially and fixedly connected from top to bottom, a plurality of second oil inlet holes are formed in the third-stage connecting sleeve in the radial direction in a penetrating mode, and a plurality of first oil outlet holes are formed in the output end cover in the radial direction in a penetrating mode. The oil filling device is uniform in oil filling and convenient to install.

Description

Technical Field

[0001] The utility model belongs to the technical field of reducers, in particular to a uniform oiling reducer. Background Art

[0002] The reducer barrel often needs to add reducer oil to ensure its normal operation and extend its service life. By adding oil, sufficient lubrication and cooling can be provided to reduce friction and wear. At the same time, the reducer needs to be kept clean and the lubricating oil needs to be replaced regularly.

[0003] For example, a three-stage gear reducer with patent number 2017215069070 adds lubricating oil to the oil chamber through the refueling pipe, installs the second push rod on the top of the first push rod, and presses down the second push rod, and uses the first push rod to drive the first piston down. At the same time, the first piston drives the block down through the first spring to block the left end of the refueling pipe, and stops refueling. The first piston squeezes the lubricating oil in the oil chamber and squeezes it into the dropper through the oil outlet pipe. The lubricating oil falls onto the gear through the barrel hole on the surface of the dropper. Since the dropper is relatively slender, the oil pressure in the lower half of the dropper away from the refueling pipe will affect the oil outlet speed, resulting in uneven refueling of the entire machine. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a uniform oiling reducer.

[0005] The purpose of the utility model can be achieved through the following technical solutions: a uniform oil reduction machine, including an input end cover, a first-level connecting sleeve, a first-level planetary mechanism, a second-level connecting sleeve, a second-level planetary mechanism, a third-level connecting sleeve, a third-level planetary mechanism, an output end cover and an output shaft, which are fixedly connected in sequence from top to bottom, the second-level connecting sleeve is radially penetrated by a plurality of oil inlet holes 1, the third-level connecting sleeve is radially penetrated by a plurality of oil inlet holes 2, and the output end cover is radially penetrated by a plurality of oil outlet holes 1.

[0006] Furthermore, a fixed annular portion protrudes inward from the middle of the three-stage connecting sleeve, a bearing 1 is fixed between the inner circumference of the fixed annular portion and the three-stage planetary mechanism, the oil inlet hole 2 is located below the fixed annular portion, the output end cover comprises a first barrel portion, a second barrel portion and a third barrel portion, the diameters of which decrease successively from top to bottom, a first connecting portion is connected between the lower end of the first barrel portion and the upper end of the second barrel portion, a mounting ring protrudes upward from the first connecting portion, a bearing 2 is fixed between the mounting ring and the three-stage planetary mechanism, and the oil outlet hole 1 is arranged on the side wall of the first barrel portion.

[0007] Furthermore, the fixed annular portion has an annular groove 1 opening downward, the oil inlet hole 2 is connected to the side wall of the barrel annular groove 1, the first connecting portion has an annular groove 2 facing upward, the oil outlet hole 1 is connected to the side wall of the barrel annular groove 2, and the openings of the annular groove 1 and the annular groove 2 are arranged opposite to each other.

[0008] Further, the first-stage planetary mechanism includes a first-stage sun gear, a first-stage planetary gear, a first-stage internal gear ring and a first-stage planet carrier, the second-stage planetary mechanism includes a second-stage sun gear, a second-stage planetary gear, a second-stage internal gear ring and a second-stage planet carrier, the third-stage planetary mechanism includes a third-stage sun gear, a third-stage planetary gear, a third-stage internal gear ring and a third-stage planet carrier, the first-stage internal gear ring is fixedly connected between the first-stage planetary mechanism and the second-stage connecting sleeve, the second-stage internal gear ring is fixedly connected between the second-stage planetary mechanism and the third-stage connecting sleeve, and the third-stage internal gear ring is fixedly connected between the third-stage connecting sleeve and the output end cover;

[0009] The input shaft is spline-connected to the first-stage sun gear, the first-stage planet carrier is spline-connected to the second-stage sun gear, the second-stage planet carrier is spline-connected to the third-stage sun gear, the third-stage planet carrier is spline-connected to the output shaft, the upper end of the third-stage planet carrier is supported and installed in the third-stage connecting sleeve through bearing 1, and the lower end of the third-stage planet carrier is supported and installed in the output end cover through bearing 2, and one end of the output shaft away from the third-stage planet carrier is fixedly connected with a fixing seat, and the fixing seat is supported and installed outside the output end cover through a double-row spherical roller bearing.

[0010] Furthermore, the fixing seat has a second oil outlet hole which penetrates radially, and an outer port of the second oil outlet hole is blocked with a second oil drain plug.

[0011] Furthermore, the fixing seat includes a cylindrical bearing mounting portion and a shaft fixing portion, a flange fixing portion protruding outward is provided between the bearing mounting portion and the shaft fixing portion, a double-row spherical roller bearing is fixedly installed between the bearing mounting portion and the output end cover, the output shaft extends into the shaft fixing portion and is fixed by a spline, and the oil outlet hole radially penetrates the flange fixing portion.

[0012] Furthermore, the outer port of the oil inlet hole 1 is blocked with a screw plug 1 with a magnet, the outer port of the oil inlet hole 2 is blocked with a screw plug 2 with a magnet, and the outer port of the oil outlet hole 1 is blocked with an oil drain screw plug 1. The magnets in the screw plugs with magnets can absorb iron powder in the liquid to prevent it from being scattered in the oil.

[0013] Furthermore, the number of the oil inlet holes is 4-10.

[0014] Furthermore, the number of the second oil inlet holes is 4-10.

[0015] Furthermore, the number of the oil outlet holes is 4-10.

[0016] Compared with the prior art, the technical effects of the utility model are as follows: 1. Through the cooperation of the oil inlet hole 1 and the oil outlet hole 2 and the cooperation of the oil inlet hole 2 and the oil outlet hole 1, especially by setting the oil inlet hole 1 in the secondary connecting sleeve, the oil enters the reducer from the secondary connecting sleeve and fills the primary planetary mechanism and the secondary planetary mechanism. Since the two ends of the three-stage planetary mechanism are supported by the bearing 1 and the bearing 2, the oil coming from the secondary connecting sleeve cannot smoothly enter between the planetary gear and the inner gear ring of the three-stage planetary mechanism. Therefore, the oil inlet hole 2 is set in the three-stage connecting sleeve, and the oil can be added to the three-stage planetary mechanism more evenly and quickly. The oil outlet hole 1 can be better matched with the oil inlet hole 2, so that the three-stage planetary mechanism can better discharge the oil, which is convenient for the later replacement of the oil. Further, the oil outlet hole 2 is set in the fixed seat, and the fixed seat is located at the lower part. The oil outlet hole 2 can better discharge the oil from the oil inlet hole 1 to facilitate the later replacement of the oil.

[0017] 2. The planetary mechanisms at each level can be disassembled separately for easy maintenance and cleaning.

[0018] 3. Annular groove 1 can make the oil inlet smoother and annular groove 2 can make the oil discharge smoother. Annular groove 1 and annular groove 2 can also increase the oil storage volume near the third-stage planetary mechanism, making the operation of the third-stage planetary mechanism more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model.

[0020] Figure 2 It is a cross-sectional view of the utility model.

[0021] Figure 3 It is an exploded view of the utility model.

[0022] Figure number marking: 1. Input end cover; 2. Primary connecting sleeve; 3. Primary planetary mechanism; 31. Primary sun gear; 32. Primary planetary gear; 33. Primary internal gear ring; 34. Primary planet carrier; 4. Secondary connecting sleeve; 401. Oil inlet hole 1; 5. Secondary planetary mechanism; 51. Secondary sun gear; 52. Secondary planetary gear; 53. Secondary internal gear ring; 54. Secondary planet carrier; 6. Third-stage connecting sleeve; 601. Oil inlet hole 2; 602. Annular groove 1; 61. Fixed annular part; 7. Third-stage planetary mechanism; 71. Third-stage sun gear; 72. Third-stage planetary gear; 73. Third-stage internal gear ring; 74 , three-stage planetary carrier; 8, output end cover; 801, oil outlet hole one; 802, annular groove two; 81, first barrel part; 82, second barrel part; 83, third barrel part; 84, first connecting part; 85, mounting ring; 9, output shaft; 10, bearing one; 11, bearing two; 12, fixed seat; 1201, oil outlet hole two; 121, bearing mounting part; 122, shaft fixing part; 123, flange fixing part; 13, double-row spherical roller bearing; 14, oil drain plug two; 15, screw plug one with magnet; 16, screw plug two with magnet; 17, oil drain plug one; 18, input shaft. DETAILED DESCRIPTION

[0023] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0024] It should be noted that the descriptions of the present invention regarding directions such as "up", "down", "left", "right", "top" and "bottom" are all defined based on the relationships between the orientations or positions shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device must be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0025] according to Figures 1 to 3 As shown, a uniform oiling reducer comprises an input end cover 1, a primary connecting sleeve 2, a primary planetary mechanism 3, a secondary connecting sleeve 4, a secondary planetary mechanism 5, a tertiary connecting sleeve 6, a tertiary planetary mechanism 7, an output end cover 8 and an output shaft 9 which are fixedly connected in sequence from top to bottom. The primary planetary mechanism 3 comprises a primary sun gear 31, a primary planetary gear 32, a primary internal gear ring 33 and a primary planetary carrier 34; the secondary planetary mechanism 5 comprises a secondary sun gear 51, a secondary planetary gear 52, a secondary internal gear ring 53 and a secondary planetary carrier 54; the tertiary planetary mechanism 7 comprises a tertiary sun gear 71, a tertiary planetary gear 72, a tertiary internal gear ring 73 and a tertiary planetary carrier 74. The primary internal gear ring 33 is fixedly connected between the primary planetary mechanism 3 and the secondary connecting sleeve 4, the secondary internal gear ring 53 is fixedly connected between the secondary planetary mechanism 5 and the tertiary connecting sleeve 6, and the tertiary internal gear ring 73 is fixedly connected between the tertiary connecting sleeve 6 and the output end cover 8.

[0026] The input shaft 18 is connected to the primary sun gear 31 through a spline. The input shaft 18 drives the primary sun gear 31 to rotate. The primary sun gear 31 drives the primary planetary gear 32 to rotate. The primary planetary gear 32 rotates relative to the primary internal gear ring 33. The primary planetary carrier 34 rotates around the primary sun gear 31 along with the primary planetary gear 32. The primary planetary carrier 34 is connected to the secondary sun gear 51 through a spline. The primary planetary carrier 34 drives the secondary sun gear 51 to rotate. The secondary sun gear 51 drives the secondary planetary gear 52 to rotate. The secondary planetary gear 52 rotates relative to the secondary internal gear ring 33. The ring 53 rotates, and the secondary planet carrier 54 rotates around the secondary sun gear 51 together with the secondary planet gear 52; the secondary planet carrier 54 is spline-connected with the tertiary sun gear 71, the secondary planet carrier 54 drives the tertiary sun gear 71 to rotate, the tertiary sun gear 71 drives the tertiary planet gear 72 to rotate, the tertiary planet gear 72 rotates relative to the tertiary internal gear ring 73, and the tertiary planet carrier 74 rotates around the tertiary sun gear 71 together with the tertiary planet gear 72; the tertiary planet carrier 74 is spline-connected with the output shaft 9, and the tertiary planet carrier 74 drives the output shaft 9 to rotate together.

[0027] A plurality of oil inlet holes 401 are radially penetrated in the secondary connecting sleeve 4, and the number of the oil inlet holes 401 is 4-10, and preferably 4, 6 or 8. The outer port of the oil inlet hole 401 is blocked with a screw plug 15 with a magnet.

[0028] The third-level connecting sleeve 6 is radially penetrated with a plurality of oil inlet holes 601, and the number of the oil inlet holes 601 is 4-10, preferably 4, 6 or 8. The outer port of the oil inlet hole 601 is blocked with a screw plug 16 with a magnet.

[0029] The output end cover 8 is radially penetrated with a plurality of oil outlet holes 801. The number of the oil outlet holes 801 is 4-10, preferably 4, 6 or 8. The outer port of the oil outlet hole 801 is blocked with an oil drain screw plug 17.

[0030] The upper end of the third-stage planet carrier 74 is supported and installed in the third-stage connecting sleeve 6 through a bearing 10, and the lower end of the third-stage planet carrier 74 is supported and installed in the output end cover 8 through a bearing 2 11. The end of the output shaft 9 away from the third-stage planet carrier 74 is fixedly connected to a fixing seat 12, and the fixing seat 12 is supported and installed outside the output end cover 8 through a double-row spherical roller bearing 13. The second-stage connecting sleeve 4 is radially penetrated with a plurality of oil inlet holes 1 401, the third-stage connecting sleeve 6 is radially penetrated with a plurality of oil inlet holes 2 601, and the output end cover 8 is radially penetrated with a plurality of oil outlet holes 1 801.

[0031] A fixed annular portion 61 protrudes inward from the middle of the third-stage connecting sleeve 6, a bearing 10 is fixed between the inner periphery of the fixed annular portion 61 and the third-stage planetary mechanism 7, the second oil inlet hole 601 is located below the fixed annular portion 61, the output end cover 8 comprises a first cylindrical portion 81, a second cylindrical portion 82 and a third cylindrical portion 83, the diameters of which decrease from top to bottom, a first connecting portion 84 is connected between the lower end of the first cylindrical portion 81 and the upper end of the second cylindrical portion 82, a mounting ring 85 protrudes upward from the first connecting portion 84, a bearing 2 11 is fixed between the mounting ring 85 and the third-stage planetary mechanism 7, and the first oil outlet hole 801 is arranged on the side wall of the first cylindrical portion 81.

[0032] The fixed annular portion 61 has an annular groove 602 opening downward, and the oil inlet hole 601 is connected to the side wall of the barrel annular groove 602. The first connecting portion 84 has an annular groove 802 facing upward, and the oil outlet hole 801 is connected to the side wall of the barrel annular groove 802. The openings of the annular groove 602 and the annular groove 802 are arranged opposite to each other.

[0033] The fixing seat 12 has a radially penetrating oil outlet hole 1201, and the outer port of the oil outlet hole 1201 is blocked with an oil drain plug 14. The fixing seat 12 includes a cylindrical bearing mounting portion 121 and a shaft fixing portion 122, and a flange fixing portion 123 protruding outward is provided between the bearing mounting portion 121 and the shaft fixing portion 122. A double-row spherical roller bearing 13 is fixedly installed between the bearing mounting portion 121 and the output end cover 8, and the output shaft 9 is inserted into the shaft fixing portion 122 for spline fixation, and the oil outlet hole 1201 radially penetrates the flange fixing portion 123.

[0034] Through the cooperation between the oil inlet hole 1 401 and the oil outlet hole 2 1201 as well as the cooperation between the oil inlet hole 2 601 and the oil outlet hole 1 801, the whole machine can have more uniform oil inlet and oil outlet, which is convenient for later oil replacement.

[0035] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. A uniform oiling reducer, comprising an input end cover (1), a primary connecting sleeve (2), a primary planetary mechanism (3), a secondary connecting sleeve (4), a secondary planetary mechanism (5), a tertiary connecting sleeve (6), a tertiary planetary mechanism (7), an output end cover (8) and an output shaft (9) which are fixedly connected in sequence from top to bottom, characterized in that: The secondary connecting sleeve (4) is radially penetrated by a plurality of oil inlet holes one (401), the tertiary connecting sleeve (6) is radially penetrated by a plurality of oil inlet holes two (601), and the output end cover (8) is radially penetrated by a plurality of oil outlet holes one (801).

2. A uniform oiling reducer according to claim 1, characterized in that: A fixed annular portion (61) protrudes inwardly from the middle of the three-stage connecting sleeve (6), a bearing 1 (10) is fixed between the inner circumference of the fixed annular portion (61) and the three-stage planetary mechanism (7), and the second oil inlet hole (601) is located below the fixed annular portion (61). The output end cover (8) comprises a first cylindrical portion (81), a second cylindrical portion (82) and a third cylindrical portion (83) whose diameters decrease from top to bottom, a first connecting portion (84) is connected between the lower end of the first cylindrical portion (81) and the upper end of the second cylindrical portion (82), a mounting ring (85) protrudes upward from the first connecting portion (84), a bearing 2 (11) is fixed between the mounting ring (85) and the three-stage planetary mechanism (7), and the first oil outlet hole (801) is arranged on the side wall of the first cylindrical portion (81).

3. A uniform oiling reducer according to claim 2, characterized in that: The fixed annular portion (61) has an annular groove 1 (602) opening downward, the oil inlet hole 2 (601) is connected to the side wall of the barrel annular groove 1 (602), the first connecting portion (84) has an annular groove 2 (802) pointing upward, the oil outlet hole 1 (801) is connected to the side wall of the barrel annular groove 2 (802), and the openings of the annular groove 1 (602) and the annular groove 2 (802) are arranged opposite to each other.

4. A uniform oiling reducer according to claim 1, 2 or 3, characterized in that: The first-stage planetary mechanism (3) comprises a first-stage sun gear (31), a first-stage planetary gear (32), a first-stage internal gear ring (33) and a first-stage planet carrier (34); the second-stage planetary mechanism (5) comprises a second-stage sun gear (51), a second-stage planetary gear (52), a second-stage internal gear ring (53) and a second-stage planet carrier (54); the third-stage planetary mechanism (7) comprises a third-stage sun gear (71), a third-stage planetary gear (72), a third-stage internal gear ring (73) and a third-stage planet carrier (74); the first-stage internal gear ring (33) is fixedly connected between the first-stage planetary mechanism (3) and the second-stage connecting sleeve (4); the second-stage internal gear ring (53) is fixedly connected between the second-stage planetary mechanism (5) and the third-stage connecting sleeve (6); and the third-stage internal gear ring (73) is fixedly connected between the third-stage connecting sleeve (6) and the output end cover (8); The input shaft (18) is spline-connected to the first-stage sun gear (31), the first-stage planet carrier (34) is spline-connected to the second-stage sun gear (51), the second-stage planet carrier (54) is spline-connected to the third-stage sun gear (71), the third-stage planet carrier (74) is spline-connected to the output shaft (9), the upper end of the third-stage planet carrier (74) is supported and installed in the third-stage connecting sleeve (6) through a first bearing (10), and the lower end of the third-stage planet carrier (74) is supported and installed in the output end cover (8) through a second bearing (11), and one end of the output shaft (9) away from the third-stage planet carrier (74) is fixedly connected to a fixing seat (12), and the fixing seat (12) is supported and installed outside the output end cover (8) through a double-row spherical roller bearing (13).

5. The uniform oiling reducer according to claim 4, characterized in that: The second oil outlet hole (1201) is characterized in that: the fixing seat (12) has a second oil outlet hole (1201) which penetrates radially, and the outer end of the second oil outlet hole (1201) is blocked by a second oil drain screw plug (14).

6. A uniform oiling reducer according to claim 5, characterized in that: The fixing seat (12) comprises a cylindrical bearing mounting portion (121) and a shaft fixing portion (122); a flange fixing portion (123) protruding outward is provided between the bearing mounting portion (121) and the shaft fixing portion (122); a double-row spherical roller bearing (13) is fixedly mounted between the bearing mounting portion (121) and the output end cover (8); the output shaft (9) extends into the shaft fixing portion (122) and is fixed by a spline; and the second oil outlet hole (1201) radially penetrates the flange fixing portion (123).

7. The uniform oiling reducer according to claim 1, characterized in that: The outer port of the oil inlet hole 1 (401) is blocked with a screw plug 1 (15) with a magnet, the outer port of the oil inlet hole 2 (601) is blocked with a screw plug 2 (16) with a magnet, and the outer port of the oil outlet hole 1 (801) is blocked with an oil drain screw plug 1 (17).

8. The uniform oiling reducer according to claim 1, characterized in that: The number of the oil inlet holes 1 (401) is 4-10.

9. The uniform oiling reducer according to claim 1, characterized in that: The number of the second oil inlet holes (601) is 4-10.

10. The uniform oiling reducer according to claim 1, characterized in that: The number of the oil outlet holes 1 (801) is 4 to 10.

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