CN101761637A

CN101761637A - Split type vertical planet speed reducer

Info

Publication number: CN101761637A
Application number: CN200810154037A
Authority: CN
Inventors: 王德禄
Original assignee: Tianjin General Principle Machinery New Technology Co Ltd
Current assignee: Tianjin General Principle Machinery New Technology Co Ltd
Priority date: 2008-12-12
Filing date: 2008-12-12
Publication date: 2010-06-30

Abstract

The invention provides a split type vertical planet speed reducer with low manufacture cost. The speed reducer adopts a split type planet carrier structure. An upper planet carrier and a lower planet carrier are connected and firmly fixed by a pin and a bolt after semi finishing. A planet axial hole and a positioning table are finished. The speed reducer consists of a machine body, an input shaft, an input end cover, a positioning ball bearing, a baffle pad, a centering bearing, a ball bearing, a pin, a disc spring, a bolt and a fan. The invention has good positioning property, avoids the disadvantages of casting defect and dynamic difficulty, and is simple to process. After being proved by experiments, the invention solves the problem of difficult maintenance at a certain extent, has long service life and high price-performance ratio, and fully satisfies the requirements of markets.

Description

A kind of split type vertical planetary reducer

Technical field

The present invention relates to a kind of speed reducer, especially relate to a kind of split type vertical planetary reducer.

Background technique

At present, traditional planet carrier is that cast inblock structure or solid forging process.As shown in Figure 1: planetary speed reducer generally is made up of body 1, input shaft 2, input end cap 3, ball bearing 4, input axle sleeve 5, selfaligning bearing 6, retaining pad 7 and retaining pad 8 and fan 9 etc.And the cast inblock structure influences the dynamic balancing and the bulk strength of planet carrier because factors such as material, casting technique cause casting to lack filling easily.The solid forging structure is because processing is difficult, and waste of material is more, and is uneconomical.Its shortcoming is input shaft upper shaft breasting retaining pad 7 and retaining pad 8 location; When input shaft had impulsive load, bearing and gear engagement institute were influenced greatly, and the using scope of planetary speed reducer is restricted.When importing as input end with belt, gear, sprocket wheel etc., input shaft is because radial load is bigger.On the structure, the porose circlip groove of using of preceding cover bearing hole processing, the hole with the hole in the circlip groove with back-up ring positioning bearing outer ring and carry all load on the input shaft, bearing clearance in use very easily occurring strengthens, the input shaft axial float finally causes stripped nut to damage, and the common rotating speed of vertical planetary speed reducer input shaft is higher, on to put the spring bearing grease lubrication not in place, the input shaft temperature rise is fast, axial impact force is big, after working long hours, bearing and gear cause damage easily, even damage vertical planetary reducer.

Above-mentioned integrated type planetary speed reducer is difficult to its damaged location is changed, and maintenance difficult can only be scrapped by complete machine.

Therefore, be necessary that vertical planetary speed reducer is further improved.

Summary of the invention

The objective of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of split type vertical planetary reducer of low cost of manufacture is provided.

In order to realize purpose of the present invention, a kind of split type vertical planetary reducer is provided, this speed reducer adopts split type planet carrier structure, and is firm with pin and Bolt Connection after upper planet frame and the semi finishing of lower planet frame, then fine finishing planet axis hole and positioning table.Comprise body, input shaft, input end cap, place kick bearing, input axle sleeve, retaining pad, selfaligning bearing, ball bearing, pin, dish spring, bolt and fan composition.

Wherein, input axle sleeve and selfaligning bearing are located in the middle of the input end and output terminal of input shaft, and the driving gear of input shaft and the two ends of the position that sprocket wheel is installed at input shaft; Described pin is 3, and bolt is 6.

Described dish spring is the auxiliary locator of input shaft, is installed in the ball bearing lower end of input shaft bottom end bearing both sides.

Described planet wheel is affixed by pin and bolt.

This split type vertical planetary reducer axially locating is good, and has avoided casting to lack filling, the dynamic balancing difficulty, and processing is got up simple relatively.

Characteristics of the present invention are:

1. the ball bearing lower end of input shaft bottom end bearing both sides is provided with a pair of dish spring as auxiliary locator, effectively alleviates axial impact, has both protected bearing and gear to get back and has located reliably; And after bearing was subjected to outside destroy, input shaft can not scurried down and be caused damage of bearings, to ensure the speed reducer running.

2. be split type planet carrier, solved the problem of maintenance difficult to a certain extent.

Description of drawings

Fig. 1 is existing integrated type vertical planetary reducer structural representation

Fig. 2 is the overall structure schematic representation of the split type vertical planetary reducer of the present invention

Fig. 3 is the part-structure schematic representation of the split type vertical planetary reducer of the present invention

Fig. 4 is the affixed schematic representation of internal rows star-wheel of the present invention;

Wherein

Embodiment

Fig. 2 is the overall structure schematic representation of the split type vertical planetary reducer of the present invention, as shown in the figure: this installs by body 1, input shaft 2, and input end cap 3, ball bearing 4, input axle sleeve 5, retaining pad 7 and retaining pad 8, selfaligning bearing 6, fan 9, pin 11, bolt 12 and dish spring 10 are formed.Its concrete structure is:

Input axle sleeve 5 and selfaligning bearing 6 are located in the middle of the input end and output terminal of input shaft 2, and the driving gear of input shaft 2 and the two ends of the position that sprocket wheel is installed at input shaft 2; Described

retaining pad

7,8 is fixed on selfaligning bearing 6 both sides by nut; Ball bearing 4 lower ends of input shaft 2 bottom end bearing both sides also are equipped with a pair of dish spring 10, and described dish spring 10 is the auxiliary locator of input shaft, are installed in ball bearing 4 lower ends of input shaft 2 bottom end bearing both sides.

Fig. 3 is the part-structure schematic representation of the split type vertical planetary reducer of the present invention, Fig. 4 is the affixed schematic representation of internal rows star-wheel of the present invention, in conjunction with Fig. 2 as shown in the figure: connect firmly with 3

pins

11 and 6 bolts 12 after the upper planet frame 14 of described split type vertical planetary reducer and 15 semi finishings of lower planet frame, then fine finishing planet axis hole and positioning table; Described planet wheel 13 is affixed by pin 11 and bolt 12.

In conjunction with the accompanying

drawings

2,3,4, details are as follows to the present invention:

Described input axle sleeve 5 and selfaligning bearing 6 are installed in the middle of the input end and output terminal of input shaft 2, the driving gear of input shaft 2 and the two ends of the position that sprocket wheel is installed at input shaft 2, described input shaft 2 bottom end bearing both sides are equipped with ball bearing 4, described ball bearing 4 lower ends also are equipped with a pair of dish spring 12 as being the auxiliary locator of input shaft, last repair input end cap 3, and fan 9 is installed.

The upper and lower planet frame of this split type vertical planetary reducer connects firmly with 3

pins

11 and 6 bolts 12 after adopting semi finishing, then fine finishing planet axis hole and positioning table.

This split type vertical planetary reducer advantage is:

1. the position of the driving gear of input shaft 2 and installation sprocket wheel can prevent the swing of input shaft at the two ends of input shaft 2, makes input shaft stressed more stable.

2 these split type vertical planetary reducers have avoided casting to lack filling, the dynamic balancing difficulty, and processing is got up simple relatively.

3 effectively alleviate axial impact, have both protected bearing and gear to get back and have located reliably; After bearing was subjected to outside destroy, input shaft can not scurried down and be caused damage of bearings, to ensure the speed reducer running.

Facts have proved that this split type vertical planetary reducer has solved the problem of maintenance difficult to a certain extent, long service life, the cost performance height is met the need of market fully.

Claims

1. split type vertical planetary reducer, comprise body (1), input shaft (2), input end cap (3), ball bearing (4), input axle sleeve (5), selfaligning bearing (6), dish spring (10), pin (11), bolt (12) and fan (9), it is characterized in that

Described input axle sleeve (5), selfaligning bearing (6) are located in the middle of the input end and output terminal of input shaft (2);

Described ball bearing (4) is located at input shaft (2) bottom end bearing both sides;

Described pin (11) is 3, and bolt (12) is 6.

2. a kind of split type vertical planetary reducer as claimed in claim 1 is characterized in that, described split type vertical planetary reducer also comprises upper planet frame (14) and lower planet frame (15).

3. a kind of split type vertical planetary reducer as claimed in claim 2 is characterized in that, described upper planet frame (14) and lower planet frame (15) connect firmly by 3 pins (11) and 6 bolts (12) through after the semi finishing.

4. a kind of split type vertical planetary reducer as claimed in claim 3 is characterized in that, described upper planet frame (14) and lower planet frame (15) are through connecting firmly back fine finishing planet axis hole and positioning table.

5. a kind of split type vertical planetary reducer as claimed in claim 1 is characterized in that,

Described dish spring (10) is 2, is located at the lower end of described ball bearing (4) respectively;

Described retaining pad (7,8) is fixed on selfaligning bearing (6) both sides by nut.

6. a kind of split type vertical planetary reducer as claimed in claim 1 is characterized in that, the driving gear of described input shaft (2) and the two ends of the position that sprocket wheel is installed in input shaft (2).