CN202327040U

CN202327040U - Large-torque planetary gear box input structure

Info

Publication number: CN202327040U
Application number: CN2011204524455U
Authority: CN
Inventors: 逄永梅
Original assignee: SHANGHAI JIANHAO GEARING MACHINERY CO Ltd
Current assignee: SHANGHAI JIANHAO GEARING MACHINERY CO Ltd
Priority date: 2011-11-15
Filing date: 2011-11-15
Publication date: 2012-07-11
Anticipated expiration: 2021-11-15

Abstract

The utility model relates to a large-torque planetary gear box input structure, which comprises a first sun wheel, a second sun wheel, an input gear shaft, a shaft check ring, a planet carrier, a first hole check ring, a support base, an outer friction plate, an inner friction plate, a main shaft body, a plunger, a spring pressing plate, a second hole check ring, a first X-type sealing ring, a spring and a second X-type sealing ring. The large-torque planetary input structure also comprises a baffle and a deep groove ball bearing, wherein the end surface of the second sun wheel is in flexible contact with the baffle, the outer ring of the deep groove ball bearing is arranged in a support base hole, the inner ring of the deep groove ball bearing is matched with the outer circle of the input gear shaft, and the outer circle of the baffle is matched with the inner hole of the support base. Because the deep groove ball bearing is used for radially locating the input gear shaft, the swinging of the first sun wheel is reduced, the stress conditions of a planetary gear and other parts is improved, the use reliability of a gear box is increased; and in addition, the baffle is used as a fixed member, the second sun wheel has a relative small rotation speed when operating to be in end face contact with the baffle, thus the heat generation is reduced, and the service life of the gear box is prolonged.

Description

High pulling torque epicyclic gearbox input structure

Technical field

The utility model relates to a kind of high pulling torque epicyclic gearbox input structure, relates in particular to the radial structure of input tooth axle in this high pulling torque epicyclic gearbox input structure.

Background technique

Engineering machinery is compact with the gear-box claimed structure, volume and characteristics such as quality is little, gear range is big, driving torque is big, and epicyclic gearbox is a kind of transmission device of preferentially selecting for use in the engineering machinery.Whether the epicyclic gearbox input structure rationally directly influences the working life of this gear-box, and then jeopardizes the job safety of engineering machinery.

As shown in Figure 1, in the existing technology driving speed reducer input structure comprise first sun gear 1, second sun gear 2, input tooth axle 3, shaft block ring 4, planet carrier 5, first hole with back-up ring 6, supporting base 7, outside friction disc 8, interior friction plate 9, main shaft 10, piston 11, spring bearer plate 12, second hole with back-up ring 13, an X RunddichtringO 14, spring 15, the 2nd X RunddichtringO 16.

As shown in Figure 1, main shaft 10 connects with the engineering machinery rigidity of frame through bolt, and is fixed; Planet carrier 5 connects with main shaft 10 through involute splines, and shaft block ring is loaded on the main shaft 10, and outside friction disc 8 is connected with main shaft 10 through external tooth; Interior friction plate 9 is connected with input tooth axle 3 through internal tooth, and supporting base 7 is loaded on intermediate gap, main shaft 10 hole and cooperates, and piston 11 is loaded in the main shaft 10; The one X RunddichtringO 14 is loaded in piston 11 grooves, and the 2nd X RunddichtringO is loaded in main shaft 10 annular grooves, and first hole is loaded in main shaft 10 annular grooves with back-up ring 6; Second hole is loaded in main shaft 10 annular grooves with back-up ring 13; Spring 15 is loaded in piston 11 holes, and spring bearer plate cooperates with the main shaft interporal lacuna, and first sun gear 1 connects with input tooth axle 3 through external splines; Second sun gear, 2 skies are enclosed within on 1 of first sun gear, its end face and input tooth axle 3 flexible contacts.

Power motor is connected with input tooth axle 3 through spline; Power is passed to input tooth axle 3; When illustrating the no pressure in I place, input tooth axle 3 is passed to first sun gear, 1, the first sun gear 1 with power through spline and through driving components such as planetary pinion, planet carriers power is passed to second sun gear 2.From shown in Figure 1, input tooth axle 3 does not radially have the location and is in quick condition, very easily strengthens the swing of first sun gear, distortion, is prone to cause each planetary pinion unbalance stress of epicyclic gearbox, is directed at the damage of part and the scaling loss of bearing.Possibility mutual friction mutually when second sun gear 2 turns round with input tooth axle 3, heat produces big, is prone to scaling loss.

Summary of the invention

The utility model technical issues that need to address have provided a kind of high pulling torque epicyclic gearbox input structure, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is realized through following technological scheme:

The utility model comprises: main shaft connects with the engineering machinery rigidity of frame through bolt, and is fixed; Planet carrier connects with main shaft through involute splines, and shaft block ring is loaded on the main shaft; Outside friction disc is connected with main shaft through external tooth, and interior friction plate is connected with input tooth axle through internal tooth; Supporting base is loaded on main shaft body opening intermediate gap and cooperates, and piston is loaded in the main shaft; The one X RunddichtringO is loaded in the piston groove, and the 2nd X RunddichtringO is loaded in the main shaft annular groove; First hole is loaded in the main shaft annular groove with back-up ring, and second hole is loaded in the main shaft annular groove with back-up ring; Spring is loaded in the piston hole, and spring bearer plate cooperates with the main shaft interporal lacuna; First sun gear connects with input tooth axle through external splines, and second sun bye is enclosed within on first sun wheel shaft; Also comprise: baffle plate and deep groove ball bearing; The end face of described second sun gear contacts with baffle plate is flexible; Described deep groove ball bearing outer ring is loaded in the supporting base hole, and inner ring cooperates with input tooth axle cylindrical; Described baffle plate cylindrical cooperates with the supporting base endoporus.

Compared with prior art, the beneficial effect of the utility model is: through the optimization to the input shaft structure, improved the reliability of gear-box running, increased the service life.

Description of drawings

Fig. 1 is the schematic representation of high pulling torque epicyclic gearbox input structure in the existing technology.

Fig. 2 is the schematic representation of the capable structure of the utility model.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

The utility model comprises: main shaft 10 connects with the engineering machinery rigidity of frame through bolt, and is fixed; Planet carrier 5 connects with main shaft 10 through involute splines, and shaft block ring 4 is loaded on the main shaft 10; Outside friction disc 8 is connected with main shaft 10 through external tooth, and interior friction plate 9 is connected with input tooth axle 3 through internal tooth; Supporting base 7 is loaded on intermediate gap, main shaft 10 hole and cooperates, and piston 11 is loaded in the main shaft 10; The one X RunddichtringO 14 is loaded in piston 11 grooves, and the 2nd X RunddichtringO 16 is loaded in main shaft 10 annular grooves; First hole is loaded in main shaft 10 annular grooves with back-up ring 6, and second hole is loaded in main shaft 10 annular grooves with back-up ring 13; Spring 15 is loaded in piston 11 holes, and spring bearer plate 12 cooperates with main shaft 10 interporal lacunas; First sun gear 1 through external splines with import tooth axle 3 and connect, second sun gear, 2 skies are enclosed within on 1 of first sun gear; Also comprise: baffle plate 18 and deep groove ball bearing 17; The end face of described second sun gear 2 and baffle plate 18 flexible contacts; Described deep groove ball bearing 17 outer rings are loaded in supporting base 7 holes, and inner ring cooperates with input tooth axle 3 cylindricals; Described baffle plate 18 cylindricals cooperate with supporting base 7 endoporus.

The utility model has increased deep groove ball bearing input tooth axle has been carried out radial location; Thereby reduced the swing of first sun gear, improved remaining parts stressing conditions such as planetary pinion, increased the use reliability of gear-box; Baffle plate is fixed in addition; Relative rotation speed was little when the running of second sun gear contacted with its end face, had reduced the generation of heat, had improved the working life of gear-box.

The utility model has improved the reliability of gear-box running, the working life of having improved epicyclic gearbox under the less situation of the spatial position of original high pulling torque epicyclic gearbox input structure change.

Claims

1. high pulling torque epicyclic gearbox input structure comprises: main shaft connects with the engineering machinery rigidity of frame through bolt, and is fixed; Planet carrier connects with main shaft through involute splines, and shaft block ring is loaded on the main shaft; Outside friction disc is connected with main shaft through external tooth, and interior friction plate is connected with input tooth axle through internal tooth; Supporting base is loaded on main shaft body opening intermediate gap and cooperates, and piston is loaded in the main shaft; The one X RunddichtringO is loaded in the piston groove, and the 2nd X RunddichtringO is loaded in the main shaft annular groove; First hole is loaded in the main shaft annular groove with back-up ring, and second hole is loaded in the main shaft annular groove with back-up ring; Spring is loaded in the piston hole, and spring bearer plate cooperates with the main shaft interporal lacuna; First sun gear connects with input tooth axle through external splines, and second sun bye is enclosed within on first sun wheel shaft; It is characterized in that also comprising: baffle plate and deep groove ball bearing; The end face of described second sun gear contacts with baffle plate is flexible; Described deep groove ball bearing outer ring is loaded in the supporting base hole, and inner ring cooperates with input tooth axle cylindrical; Described baffle plate cylindrical cooperates with the supporting base endoporus.