CN219242567U - Planetary reducer capable of maintaining precision and concentricity structure - Google Patents

Abstract

The utility model discloses a planetary reducer capable of maintaining precision and concentricity, which comprises a connecting plate, an outer frame, a fixed flange plate and a driven connecting disc, wherein the outer frame is fixed on one side of the connecting plate through bolts, a limit bearing is embedded in the connecting plate, the driven connecting disc is arranged on the inner ring of the limit bearing, one end of the driven connecting disc is connected with a driving gear, a driven shaft is fixed in the outer frame, a support bearing is arranged on the driven shaft, and a driven gear is fixed on the outer ring of the support bearing. The driving shaft and the driving gear are integrally designed, the driven shaft is arranged in the outer frame, the supporting bearing is fixed outside the driven shaft, the driven gear is fixed on the outer ring of the supporting bearing, the bearing is arranged in the device to keep the precision and concentricity of the speed reducer, and the driving shaft and the driving gear are integrally designed, so that the device has the characteristic of high torsional rigidity under the condition of ensuring the concentricity.

Description

Planetary reducer capable of maintaining precision and concentricity structure

Technical Field

The utility model relates to the technical field of speed reducers, in particular to a planetary speed reducer capable of maintaining precision and concentricity structures.

Background

The planetary reducer is an industrial product with wide application, can reduce the rotating speed of a motor and increase the output torque. The planetary reducer can be used as a matching component for the industries of hoisting, excavating, transporting, building and the like, an inner gear ring (A) is tightly combined on a gear box shell, a sun gear (B) driven by external power is arranged in the center of a ring gear, a group of planetary gear sets (C) which are equally combined on a tray by three gears are arranged between the inner gear ring and the sun gear, and the group of planetary gears depend on a power output shaft, the inner gear ring and the sun gear to support floating in the period; when the planetary reducer is driven by power on the power input side to drive the sun gear, the planetary reducer can drive the planetary gear to rotate and revolve along the center along the track of the inner gear ring, the planetary reducer rotates to drive the output shaft connected with the tray to output power, the conventional planetary reducer generally connects the gear fixed shafts with each other through each gear, and the mode leads to low precision and concentricity of the reducer and low rigidity.

Disclosure of Invention

The utility model aims to provide a planetary reducer, which is characterized in that gear fixing shafts are generally connected with each other through gears, and the precision and concentricity of the reducer are not high and the rigidity is not high.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a planetary reducer that can keep precision and concentricity structure, includes connecting plate, outer frame, mounting flange dish and driven connection pad, one side of connecting plate is fixed with outer frame through the bolt, the inside limit bearing that inlays of connecting plate, limit bearing's inner circle is provided with driven connection pad, driven connection pad's one end is connected with the driving gear, outer frame inside is fixed with the driven shaft, be provided with support bearing on the driven shaft, support bearing's outer lane is fixed with driven gear, driven gear and driving gear intermeshing, driving shaft and driving gear adopt integrated into one piece to make.

Preferably, the driven gears are provided with three groups, the driven shafts are also provided with three groups in the outer frame, and the support bearings are also provided with three groups in the outer frame.

Preferably, the driven gear is a spiral gear, the driving gear is also a spiral gear, and the gear plays a role in transmission.

Preferably, the external meshing of driven gear has the ring gear, the one end of ring gear is connected with driven connection pad, and the ring gear has played the effect of transmission.

Preferably, one end of the outer frame is connected with a fixed flange plate, and the fixed flange plate is movably connected with the driven connecting disc.

Preferably, a third mounting hole is formed in the outer portion of the connecting plate, and four groups of the third mounting holes are formed in the connecting plate.

Preferably, the fixing flange plate is provided with first fixing holes, and the first fixing holes are provided with eight groups on the fixing flange plate.

The outside of driven connection pad has seted up the second mounting hole, the second mounting hole is provided with eight groups on driven connection pad, spacing recess has been seted up to driven connection pad's inside, spacing recess is sunken to driven connection pad's inside.

Compared with the prior art, the utility model has the beneficial effects that: the planetary reducer has reasonable structure and has the following advantages:

(1) The speed reducer is high in precision and concentricity through being provided with driving shaft, limit bearing, driven gear, driving gear, driven shaft and support bearing, and rigidity is high, therefore, through being provided with the connecting plate, inlay in the connecting plate and have limit bearing, and driving shaft and driving gear adopt integrated design, and be provided with the driven shaft in the external frame, the outside of driven shaft is fixed with support bearing, support bearing's outer lane is fixed with driven gear, through setting up the bearing in the device, be used for keeping the precision and the concentricity of speed reducer, and driving shaft and driving gear integrated design has the characteristics that torsional rigidity is high again under the circumstances of guaranteeing the concentricity.

(2) The driven gear and the driving gear are arranged to enable the speed reducer to have the effect of low noise, so that the driven gear and the driving gear adopt a spiral gear design, smooth and quiet operation of the speed reducer is realized, then the back clearance between the driven gear and the toothed ring can reach 3 arc minutes, positioning is accurate, and grease abrasion can be realized for life lubrication at the same time.

(3) High rigidity and high load are realized by arranging the driven connecting disc and the toothed ring, the driven connecting disc adopts a flange plate type design, and adopts a span type double-support angular contact ball bearing design, so that the rigidity and the load capacity of the speed reducer are greatly improved, and the limit bearing adopts an integrated design, so that the speed reducer is convenient to perfectly match with various servo motors and motors.

Drawings

FIG. 1 is a schematic diagram of the front external structure of the present utility model;

FIG. 2 is a schematic diagram of the front internal structure of the present utility model;

FIG. 3 is a right side view of the present utility model;

FIG. 4 is a schematic side sectional view of the present utility model;

fig. 5 is a schematic diagram of a left side view of the present utility model.

In the figure: 1. a connecting plate; 2. a driving shaft; 3. an outer frame; 4. a fixed flange; 5. a driven connection disc; 6. a limit bearing; 7. a driven gear; 8. a toothed ring; 9. a drive gear; 10. a driven shaft; 11. a first fixing hole; 12. a second mounting hole; 13. a support bearing; 14. a third mounting hole; 15. and a limit groove.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.

Referring to fig. 1-5, an embodiment of the present utility model is provided: the planetary reducer capable of keeping the precision and concentricity structure comprises a connecting plate 1, an outer frame 3, a fixed flange 4 and a driven connecting disc 5, wherein the outer frame 3 is fixed on one side of the connecting plate 1 through bolts, a limit bearing 6 is embedded in the connecting plate 1, the driven connecting disc 5 is arranged on the inner ring of the limit bearing 6, one end of the driven connecting disc 5 is connected with a driving gear 9, a driven shaft 10 is fixed in the outer frame 3, a supporting bearing 13 is arranged on the driven shaft 10, a driven gear 7 is fixed on the outer ring of the supporting bearing 13, the driven gear 7 and the driving gear 9 are meshed with each other, the driving shaft 2 and the driving gear 9 are manufactured by adopting integrated forming, three groups of driven gears 7 are arranged, three groups of driven shafts 10 are also arranged in the outer frame 3, and three groups of supporting bearings 13 are also arranged in the outer frame 3;

through being provided with the connecting plate 1, the limiting bearing 6 is embedded in the connecting plate 1, the driving shaft 2 and the driving gear 9 are integrally designed, the driven shaft 10 is arranged in the outer frame 3, the supporting bearing 13 is fixed outside the driven shaft 10, the driven gear 7 is fixed on the outer ring of the supporting bearing 13, the bearing is arranged in the device to keep the precision and concentricity of the speed reducer, and the driving shaft 2 and the driving gear 9 are integrally designed, so that the device has the characteristic of high torsional rigidity under the condition of ensuring the concentricity;

the driven gear 7 is a spiral gear, the driving gear 9 is also a spiral gear, a toothed ring 8 is meshed with the outside of the driven gear 7, and one end of the toothed ring 8 is connected with a driven connecting disc 5;

the driven gear 7 and the driving gear 9 adopt spiral gear design, so that smooth and quiet running of the speed reducer is realized, then the back clearance between the driven gear 7 and the toothed ring 8 can reach 3 arc minutes, the positioning is accurate, and meanwhile, grease abrasion can be realized for life lubrication;

one end of the outer frame 3 is connected with a fixed flange 4, the fixed flange 4 is movably connected with the driven connecting disc 5, a third mounting hole 14 is formed in the outer part of the connecting plate 1, four groups of the third mounting holes 14 are formed in the connecting plate 1, a first fixed hole 11 is formed in the fixed flange 4, and eight groups of the first fixed holes 11 are formed in the fixed flange 4;

the outside of the driven connecting disc 5 is provided with second mounting holes 12, eight groups of second mounting holes 12 are arranged on the driven connecting disc 5, the inside of the driven connecting disc 5 is provided with a limiting groove 15, and the limiting groove 15 is sunken towards the inside of the driven connecting disc 5;

high rigidity and high load are realized by arranging the driven connecting disc 5 and the toothed ring 8, the driven connecting disc 5 adopts a flange plate type design and adopts a span type double-support angular contact ball bearing design, so that the rigidity and the load capacity of the speed reducer are greatly improved, and the limit bearing 6 adopts an integrated design, so that the speed reducer is convenient to perfectly match with various servo motors and motors.

According to the embodiment of the application, when the speed reducer is used, the integrated design is adopted through the limit bearing 6, the speed reducer is convenient to perfectly match with various servo motors and motors, high rigidity and high load are achieved through the arrangement of the driven connecting disc 5 and the toothed ring 8, the driven connecting disc 5 is designed in a flange plate type mode, the design of a span type double-support angular contact ball bearing is adopted, the rigidity and the load capacity of the speed reducer are greatly improved, then the spiral gear design is adopted through the driven gear 7 and the driving gear 9, smooth and quiet operation of the speed reducer is achieved, then the back clearance between the driven gear 7 and the toothed ring 8 can reach the arc minute of the outer frame 3, positioning is accurate, grease abrasion can be realized for the whole life simultaneously, the limit bearing 6 is inlaid in the connecting plate 1 through the arrangement of the connecting plate 1, the driving shaft 2 and the driving gear 9 are integrally designed, the driven shaft 10 is arranged in the outer frame 3, and the support bearing 13 is fixedly arranged outside the driven shaft 10. The outer ring of the support bearing 13 is fixed with the driven gear 7, through setting up the bearing in the device, be used for keeping the precision and the concentricity of speed reducer, and driving shaft 2 and driving gear 9 integrated design have the characteristics that torsional rigidity is high again under the circumstances of guaranteeing the concentricity, link to each other with the motor through driving shaft 2, through the rotation of driving shaft 2, make driving gear 9 rotate, and then make driven gear 7 rotate, driven gear 7 will make ring gear 8 rotate, ring gear 8 drives spacing bearing 6 rotation, transmit the rotational speed of motor on spacing bearing 6 and export.

Claims (8)

1. Planetary reducer that can keep precision and concentricity structure, its characterized in that: including connecting plate (1), external frame (3), mounting flange dish (4) and driven connection pad (5), one side of connecting plate (1) is fixed with external frame (3) through the bolt, the inside limit bearing (6) that inlays of connecting plate (1), the inner circle of limit bearing (6) is provided with driven connection pad (5), the one end of driven connection pad (5) is connected with driving gear (9), external frame (3) inside is fixed with driven shaft (10), be provided with support bearing (13) on driven shaft (10), the outer lane of support bearing (13) is fixed with driven gear (7), driven gear (7) and driving gear (9) intermeshing, driving shaft (2) and driving gear (9) adopt integrated into one piece to make.

2. The planetary reducer capable of maintaining precision and concentricity according to claim 1, characterized in that: the driven gears (7) are provided with three groups, the driven shafts (10) are also provided with three groups in the outer frame (3), and the support bearings (13) are also provided with three groups in the outer frame (3).

3. The planetary reducer capable of maintaining precision and concentricity according to claim 1, characterized in that: the driven gear (7) is a spiral gear, and the driving gear (9) is also a spiral gear.

4. The planetary reducer capable of maintaining precision and concentricity according to claim 1, characterized in that: the external meshing of driven gear (7) has ring gear (8), the one end of ring gear (8) is connected with driven connection pad (5).

5. The planetary reducer capable of maintaining precision and concentricity according to claim 1, characterized in that: one end of the outer frame (3) is connected with a fixed flange plate (4), and the fixed flange plate (4) is movably connected with a driven connecting disc (5).

6. The planetary reducer capable of maintaining precision and concentricity according to claim 1, characterized in that: the outside of connecting plate (1) has seted up third mounting hole (14), third mounting hole (14) are provided with four groups on connecting plate (1).

7. The planetary reducer capable of maintaining precision and concentricity according to claim 5, characterized in that: the fixing flange plate (4) is provided with a first fixing hole (11), and the first fixing hole (11) is provided with eight groups on the fixing flange plate (4).

8. The planetary reducer capable of maintaining precision and concentricity according to claim 4, characterized in that: the novel connecting structure is characterized in that a second mounting hole (12) is formed in the outer portion of the driven connecting disc (5), eight groups of second mounting holes (12) are formed in the driven connecting disc (5), a limiting groove (15) is formed in the driven connecting disc (5), and the limiting groove (15) is recessed towards the inner portion of the driven connecting disc (5).

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