Straight-tooth high-precision planetary reducer

Abstract

The utility model relates to the technical field of planetary speed reducers, in particular to a straight-tooth high-precision planetary speed reducer which comprises a speed reducer outer cover, a speed reduction structure is arranged in the speed reducer outer cover, and an inner gear ring is fixedly installed on the inner wall of the speed reducer outer cover. The outer surface of the inner gear ring and the inner wall of the speed reducer outer cover are provided with oil injection holes which are communicated with each other. Compared with the prior art, the planetary reducer has the advantages that the oil injection hole, the connecting threaded hole, the hollow threaded rod, the oil storage cotton, the oil storage box, the oil discharge hole, the lead screw, the rotary knob, the nut, the extrusion plate, the extrusion rod, the extrusion block and the guide rod are arranged in a matched mode, so that lubricating oil can be conveniently added into the outer cover of the planetary reducer, and quantitative lubricating oil can be added at a time; according to the planetary reducer, the lubricating oil can evenly lubricate parts, so that it is guaranteed that the planetary reducer can operate at high precision, the lubricating oil can be rapidly added, and the lubricating oil adding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to planetary reducer technical field especially a straight tooth high precision planetary reducer. BACKGROUND

[0002] The planetary reducer is a kind of industrial product with wide application, can reduce the speed of motor, simultaneously increase output torque.The planetary reducer can be used as matched components in hoisting, excavating, transporting, building and other industries, straight tooth planetary reducer is the planetary reducer that straight tooth gear transmission is used to realize the function of deceleration, with the continuous progress of technology, the precision of straight tooth planetary reducer is higher and higher.

[0003] The existing straight tooth planetary reducer is injected with lubricating oil in the shell after working for a period of time to increase the lubricity of straight tooth gear operation, if not timely adding lubricating oil, it is prone to the situation that straight tooth gear engagement is not stable enough, thereby the stroke of planetary gear is influenced, the precision of planetary reducer is influenced, the lubricating oil of some planetary reducers is mostly filled in one time in the process of adding, leading to lubricating oil being prone to accumulation together, not easy to spread, so that the effect of adding lubricating oil to reducer parts is reduced, therefore a straight tooth high precision planetary reducer is needed to solve the above problems. SUMMARY

[0004] The utility model aims at solving at least one of the technical defects.

[0005] Therefore, one purpose of the utility model is to provide a straight tooth high precision planetary reducer to solve the problems mentioned in the background art and overcome the deficiencies in the prior art.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the utility model provides a straight tooth high precision planetary reducer, which comprises a reducer cover, the inside of the reducer cover is provided with a reduction structure, the inner wall of the reducer cover is fixedly installed with an inner gear ring, an oil injection hole is formed in the outer surface of the inner gear ring and the inner wall of the reducer cover, the top side of the reducer cover is provided with a connecting thread hole, the inner wall of the connecting thread hole is threadedly connected with a hollow threaded rod, the inside of the hollow threaded rod is provided with oil storage cotton, the top end of the hollow threaded rod is fixedly connected with an oil storage box, the bottom side of the oil storage box is provided with a drain hole, one side of the oil storage box is threadedly connected with a lead screw, the top end of the lead screw is fixedly connected with a knob, the outer surface of the lead screw is threadedly connected with a nut, one side of the nut is fixedly connected with an extrusion plate, the bottom side of the extrusion plate is fixedly connected with an extrusion rod, the bottom end of the extrusion rod is fixedly connected with an extrusion block, the inside of the oil storage box is fixedly connected with a guide rod.

[0007] Preferably, the speed reduction structure comprises a double-hoop connector, a drive shaft, a sun gear, planet gears, a planet carrier and an output shaft, the inside of the reducer housing is provided with the double-hoop connector, the inside of the double-hoop connector is connected with the drive shaft, the outer surface of the drive shaft is fixedly provided with the sun gear, the outer surface of the sun gear is engaged with the three planet gears engaged with the inner ring gear, the three planet gears are connected with the planet carrier through the rotating shaft, and the planet carrier is fixedly provided with the output shaft on one side.

[0008] Preferably, the inside of the oil storage box is provided with a transparent observation window, and the transparent observation window is provided with a scale mark.

[0009] Preferably, the top side of the oil storage box is provided with an oil adding hole, the inner wall of the oil adding hole is connected with a T-shaped sealing plug, and the sealing plug is made of rubber.

[0010] Preferably, the connecting threaded hole is in communication with the oil adding hole, the center of the hollow threaded rod and the oil discharging hole is located on the same vertical plane, and the inner diameter of the hollow threaded rod is matched with the diameter of the oil discharging hole.

[0011] Preferably, the extrusion block is made of rubber, the diameter of the extrusion block is matched with the diameter of the oil discharging hole, and the center of the extrusion block and the oil discharging hole is located on the same vertical plane.

[0012] Preferably, the lead screw, the extrusion plate, the extrusion rod, the extrusion block and the guide rod are located in the inside of the oil storage box, the guide rod penetrates through the extrusion plate, and the extrusion plate and the guide rod are in sliding connection.

[0013] Compared with the prior art, the planetary reducer has the following advantages and beneficial effects:

[0014] 1. The cooperation of the oil adding hole, the connecting threaded hole, the hollow threaded rod, the oil storage cotton, the oil storage box, the oil discharging hole, the lead screw, the knob, the nut, the extrusion plate, the extrusion rod, the extrusion block and the guide rod makes the planetary reducer convenient to add lubricating oil into the inside of the reducer housing, and a certain amount of lubricating oil can be added at a time, so that the lubricating oil can uniformly lubricate the parts, thereby ensuring that the planetary reducer can run with high precision and can quickly add lubricating oil, improving the efficiency of adding lubricating oil.

[0015] 2, the hollow threaded rod and the connecting threaded hole are connected with the reducer cover, the operation of installing and dismounting the oil storage box is relatively simple, the hollow threaded rod is separated from the reducer cover, the replacement operation is facilitated when the oil storage cotton is damaged, the amount of the lubricating oil in the oil storage box can be observed through the transparent observation window and the scale mark, the amount of the lubricating oil added to the inside of the reducer cover is known, and the lubricating oil can be added to the inside of the oil storage box in time when the lubricating oil in the oil storage box is less. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the utility model;

[0017] Figure 2 It is a sectional structure schematic view of the utility model;

[0018] Figure 3 It is a structure schematic view of the utility model speed reduction structure;

[0019] Figure 4 It is a structure schematic view of the utility model Figure 2 It is an enlarged structure schematic view of the place A in the utility model.

[0020] In the drawing: 1-reducer cover, 2-speed reduction structure, 201-double hoop connecting piece, 202-driving shaft, 203-sun gear, 204-planet wheel, 205-planet carrier, 206-output shaft, 3-inner gear ring, 4-oil injection hole, 5-connecting threaded hole, 6-hollow threaded rod, 7-oil storage cotton, 8-oil storage box, 9-oil discharge hole, 10-screw rod, 11-knob, 12-nut, 13-extrusion plate, 14-extrusion rod, 15-extrusion block, 16-guide rod, 17-scale mark, 18-sealing plug. DETAILED DESCRIPTION

[0021] The utility model will be further described below in combination with the drawings, but the protection scope of the utility model is not limited to the following.

[0022] As Figures 1 to 4As shown, a straight-tooth high-precision planetary reducer, it includes reducer cover 1, the inside of reducer cover 1 is provided with reduction structure 2, the inner wall of reducer cover 1 is fixedly installed with inner gear ring 3, the outer surface of inner gear ring 3 and the inner wall of reducer cover 1 are provided with an oil injection hole 4 that is communicated with each other, the top side of reducer cover 1 is provided with connecting threaded hole 5, the inner wall of connecting threaded hole 5 is threadedly connected with hollow threaded rod 6, the inside of hollow threaded rod 6 is provided with oil storage cotton 7, the top end of hollow threaded rod 6 is fixedly connected with an oil storage box 8, the bottom side of oil storage box 8 is provided with oil discharge hole 9, one side of oil storage box 8 is threadedly connected with lead screw 10, the top end of lead screw 10 is fixedly connected with knob 11, the outer surface of lead screw 10 is threadedly connected with nut 12, one side of nut 12 is fixedly connected with extrusion plate 13, the bottom side of extrusion plate 13 is fixedly connected with extrusion rod 14, the bottom end of extrusion rod 14 is fixedly connected with extrusion block 15, the inside of oil storage box 8 is fixedly connected with guide rod 16, in normal state, extrusion block 15 is located in the inside of oil discharge hole 9, and oil discharge hole 9 is sealed and shielded, when it is needed to add lubricating oil to the inside of reducer cover 1, rotate knob 11 to make lead screw 10 rotate, make nut 12 drive extrusion plate 13 to move upwards, at this time, extrusion rod 14 drives extrusion block 15 to move upwards and make extrusion block 15 separate from oil discharge hole 9, at this time, oil liquid in the inside of oil storage box 8 enters the inside of hollow threaded rod 6 through oil discharge hole 9, and is absorbed by oil storage cotton 7, then reverse knob 11 to make lead screw 10 rotate, at this time, nut 12 drives extrusion plate 13 to move downwards, at this time, extrusion rod 14 drives extrusion block 15 to move downwards and enter the inside of oil discharge hole 9, then continue to rotate knob 11 to make extrusion block 15 continue to move downwards and enter the inside of hollow threaded rod 6, so as to extrude lubricating oil absorbed by oil storage cotton 7, at this time, lubricating oil enters the inside of reducer cover 1 through oil injection hole 4, so as to lubricate reduction structure 2 and inner gear ring 3, before connecting oil storage box 8 with reducer cover 1, there is no lubricating oil in the inside of oil storage box 8, when connecting oil storage box 8 with reducer cover 1, place oil storage cotton 7 in the inside of hollow threaded rod 6, then connect hollow threaded rod 6 with connecting threaded rod 5 and make oil storage box 8 tightly adhere to the top side of reducer cover 1, so as to connect oil storage box 8 with reducer cover 1.

[0023] As an optional technical scheme of the utility model, the deceleration structure 2 includes double hoop connecting piece 201, drive shaft 202, sun gear 203, planetary gear 204, planet carrier 205 and output shaft 206, the inside of the reducer cover 1 is provided with double hoop connecting piece 201, the inside connection of double hoop connecting piece 201 has drive shaft 202, the outer surface of drive shaft 202 is fixedly installed with sun gear 203, the outer surface of sun gear 203 is engaged with three planetary gears 204 that are engaged with the inner gear ring 3, and sun gear 203 and planetary gear 204 are all straight gears, the position of oil injection hole 4 corresponds to the position of sun gear 203, lubricating oil is directly added to sun gear 203, three planetary gears 204 are connected with a planet carrier 205 through pivot, and the output shaft 206 is fixedly installed on one side of planet carrier 205, and the output shaft 206 is connected with the reducer cover 1 through roller bearing, the stability of output shaft 206 is guaranteed when rotating, and the connection mode and working principle of drive shaft 202, sun gear 203, planetary gear 204, planet carrier 205, output shaft 206 and inner gear ring 3 are the mature technology of the prior art.

[0024] As an optional technical scheme of the utility model, the inside of oil storage box 8 is provided with transparent observation window, and scale mark 17 is arranged on the transparent observation window, the amount of lubricating oil added to the inside of the reducer cover 1 and the amount of lubricating oil remaining in the inside of oil storage box 8 are observed through the transparent observation window and scale mark 17.

[0025] As an optional technical scheme of the utility model, the top side of oil storage box 8 is provided with oil adding hole, the inner wall of oil adding hole is clamped with sealing plug 18 with T-shaped cross section, the material of sealing plug 18 is rubber, lubricating oil is added to the inside of oil storage box 8 through oil adding hole, sealing operation is carried out on oil adding hole through sealing plug 18, and external factors are prevented from entering the inside of oil storage box 8 through oil adding hole.

[0026] As an optional technical scheme of the utility model, connecting screw hole 5 is communicated with oil injection hole 4, the center position of hollow threaded rod 6 and oil discharge hole 9 is on the same vertical plane, the inner diameter of hollow threaded rod 6 is matched with the diameter of oil discharge hole 9, so that the lubricating oil in the inside of oil storage box 8 can enter the inside of hollow threaded rod 6 through oil discharge hole 9.

[0027] As an optional technical scheme of the utility model, the material of extrusion block 15 is rubber, the diameter of extrusion block 15 is matched with the diameter of oil discharge hole 9, and the center position of extrusion block 15 and the center position of oil discharge hole 9 are on the same vertical plane, so that extrusion block 15 can smoothly enter the inside of oil discharge hole 9 and sealing operation is carried out on oil discharge hole 9.

[0028] As an optional technical scheme of the utility model, the screw rod 10, the extrusion plate 13, the extrusion rod 14, the extrusion block 15 and the guide rod 16 are all located inside the oil storage box 8, the guide rod 16 penetrates the extrusion plate 13, the extrusion plate 13 is slidably connected with the guide rod 16, the guide rod 16 plays a guiding role on the extrusion plate 13, so that the extrusion plate 13 can only move linearly in the vertical direction.

[0029] A straight-tooth high-precision planetary reducer has the following working principle:

[0030] 1) Rotating the knob 11 to rotate the screw rod 10, so that the nut 12 drives the extrusion plate 13 to move upwards, at this time the extrusion rod 14 drives the extrusion block 15 to move upwards and separates the extrusion block 15 from the oil discharge hole 9, at this time the oil inside the oil storage box 8 enters the inside of the hollow screw rod 6 through the oil discharge hole 9, and the lubricating oil is sucked by the oil storage cotton 7;

[0031] 2) Reverse the knob 11 to rotate the screw rod 10, at this time the nut 12 drives the extrusion plate 13 to move downwards, at this time the extrusion rod 14 drives the extrusion block 15 to move downwards and enters the inside of the oil discharge hole 9, then continue to rotate the knob 11 to make the extrusion block 15 continue to move downwards and enter the inside of the hollow screw rod 6, so as to squeeze out the lubricating oil sucked by the oil storage cotton 7, at this time the lubricating oil enters the inside of the reducer cover 1 through the oil injection hole 4, and the lubricating oil directly drops on the sun gear 203, and in this process the sun gear 203 rotates, under the meshing transmission, the lubricating oil lubricates the planetary gear 204 and the inner gear 3.

[0032] In summary, the straight-tooth high-precision planetary reducer, through the cooperation of the oil injection hole 4, the connecting threaded hole 5, the hollow screw rod 6, the oil storage cotton 7, the oil storage box 8, the oil discharge hole 9, the screw rod 10, the knob 11, the nut 12, the extrusion plate 13, the extrusion rod 14, the extrusion block 15 and the guide rod 16, makes the planetary reducer convenient to add lubricating oil to the inside of the reducer cover 1, and can add a certain amount of lubricating oil at a time, so that the lubricating oil can uniformly lubricate the parts, thereby ensuring that the planetary reducer can operate with high precision and can quickly add lubricating oil, improving the efficiency of adding lubricating oil, the oil storage box 8 is connected with the reducer cover 1 through the hollow screw rod 6 and the connecting threaded hole 5, making the installation and disassembly of the oil storage box 8 more convenient, and the hollow screw rod 6 and the reducer cover 1 are separated, when the oil storage cotton 7 is damaged, it is convenient to replace, and through the transparent observation window and the scale mark 17, the amount of lubricating oil in the oil storage box 8 can be observed, and the amount of lubricating oil added to the inside of the reducer cover 1 can be understood, so that when the amount of lubricating oil in the oil storage box 8 is small, the lubricating oil can be added to the inside of the oil storage box 8 in time.

Claims

1. A straight-tooth high-precision planetary reducer, characterized in that: The application relates to a speed reducer housing (1) provided with a speed reduction structure (2) inside, an inner gear ring (3) fixedly installed on the inner wall of the speed reducer housing (1), an oil injection hole (4) formed on the outer surface of the inner gear ring (3) and the inner wall of the speed reducer housing (1) and communicating with each other, a connecting threaded hole (5) formed on the top side of the speed reducer housing (1), a hollow threaded rod (6) threadedly connected to the inner wall of the connecting threaded hole (5), storage oil cotton (7) arranged in the hollow threaded rod (6), a storage oil box (8) fixedly connected to the top end of the hollow threaded rod (6), an oil discharge hole (9) formed on the bottom side of the storage oil box (8), a lead screw (10) threadedly connected to one side of the storage oil box (8), a knob (11) fixedly connected to the top end of the lead screw (10), a nut (12) threadedly connected to the outer surface of the lead screw (10), an extrusion plate (13) fixedly connected to one side of the nut (12), an extrusion rod (14) fixedly connected to the bottom side of the extrusion plate (13), an extrusion block (15) fixedly connected to the bottom end of the extrusion rod (14), and a guide rod (16) fixedly connected to the inside of the storage oil box (8).

2. The straight tooth high-precision planetary reducer according to claim 1, characterized in that: The speed reduction structure (2) comprises double-hoop connecting pieces (201), a driving shaft (202), a sun gear (203), planet gears (204), a planet carrier (205) and an output shaft (206), the speed reducer housing (1) is provided with the double-hoop connecting pieces (201) inside, the double-hoop connecting pieces (201) are connected with the driving shaft (202) inside, the driving shaft (202) is fixedly provided with the sun gear (203) on the outer surface, the sun gear (203) is engaged with the three planet gears (204) engaged with the inner gear ring (3), the three planet gears (204) are connected with the planet carrier (205) through rotating shafts, and the planet carrier (205) is fixedly provided with the output shaft (206) on one side.

3. The straight tooth high-precision planetary reducer according to claim 2, characterized in that: The inside of the storage oil box (8) is provided with a transparent observation window, and the transparent observation window is provided with scale marks (17).

4. The straight tooth high-precision planetary reducer according to claim 3, characterized in that: The top side of the storage oil box (8) is provided with an oil adding hole, the inner wall of the oil adding hole is clamped with a sealing plug (18) in the shape of T in cross section, and the sealing plug (18) is made of rubber.

5. The straight tooth high-precision planetary reducer according to claim 4, characterized in that: The connecting threaded hole (5) and the oil injection hole (4) are connected, the center of the hollow threaded rod (6) and the oil discharge hole (9) are located on the same vertical plane, and the inner diameter of the hollow threaded rod (6) is matched with the diameter of the oil discharge hole (9).

6. The straight tooth high-precision planetary reducer according to claim 5, characterized in that: The extrusion block (15) is made of rubber, the diameter of the extrusion block (15) is matched with the diameter of the oil discharge hole (9), and the center of the extrusion block (15) and the center of the oil discharge hole (9) are located on the same vertical plane.

7. The straight tooth high-precision planetary reducer according to claim 6, characterized in that: The lead screw (10), the extrusion plate (13), the extrusion rod (14), the extrusion block (15) and the guide rod (16) are located inside the storage oil box (8), the guide rod (16) penetrates through the extrusion plate (13), and the extrusion plate (13) is slidably connected with the guide rod (16).

Images