CN201100388Y

CN201100388Y - Small gear self-adjusting device

Info

Publication number: CN201100388Y
Application number: CNU2007200814791U
Authority: CN
Inventors: 罗怀林; 贺元成; 张玲玉; 郑自求
Original assignee: Sichuan University of Science and Engineering
Current assignee: Sichuan University of Science and Engineering
Priority date: 2007-10-11
Filing date: 2007-10-11
Publication date: 2008-08-13
Anticipated expiration: 2017-10-11

Abstract

The utility model discloses a small gear self-adjusting device, comprising a box body, a gear shaft which is composed of a shaft and a crowned tooth sleeve which is connected with the shaft through a key, an angular contact knuckle bearing which is arranged on the gear shaft, a small gear wheel which is disposed on the angular contact knuckle bearing and has inner teeth in an inner hole on the edge of the wheel, a shaft sleeve which is arranged on two ends of the inner hole on the edge of the wheel, and a lubricating oil rail and a lubricating oil cup, wherein the inner teeth and the angular contact knuckle bearing are disposed on the middle of the axial direction of the small gear wheel; and the inner teeth is meshed with the crowned tooth sleeve. As the further improvement of the small gear self-adjusting device, the two sides of the small gear wheel are also provided with baffles; the lubricating oil rail is arranged inside the baffles and the small gear wheel; each baffle is provided with a flexible sealing ring which is contacted with the shaft; and the lubricating oil cup is disposed on the oil opening of the baffle. The small gear self-adjusting device is convenient for processing, maintaining or replacing, and has better economy and wider using range.

Description

Small gear self-reposition device

Technical field

The utility model relates to a kind of small gear self-reposition device, specifically a kind of small gear self-reposition device that uses angular contact articulated bearing.

Background technique

At present, be small gear in the final stage transmission of equipment such as revolution cellar for storing things, trommel mixer and drive gearwheel, heavy-duty low-speed is its major character, and unbalance loading is more serious, and the reason of this unbalance loading generation is: one, and foozle, not parallel etc. as adjacent two teeth of gear; Its two, alignment error, i.e. two shaft axis mutual alignment deviations; They are three years old, the deflection of shaft axis under the work loads effect, the gearwheel position deflection that temperature variation and foundation settlement etc. cause, the accumulation of these errors will cause the gear pair can not correct engagement and deflection is carried, consequence is the heavy wear of the gear teeth, even fracture etc., for addressing this problem, usually small gear is set up from transposing device, widely used now, the structure of the small gear self-reposition device of band angular contact articulated bearing is: casing, be installed on the casing and have the gear shaft of crowned teeth, be installed in the angular contact articulated bearing on the gear shaft, be installed on the angular contact articulated bearing, its wheel rim endoporus has the small gear of internal tooth, be arranged on the axle sleeve at wheel rim endoporus two ends, and lubricating oil path and lubricating cup, wherein internal tooth and angular contact articulated bearing be arranged on pinion shaft to the centre, in the angular contact articulated bearing, outer spheroid is split-type structural and the both sides that place internal tooth, internal tooth and crowned teeth engagement, wherein gear shaft comprise axle and with the crowned teeth of axle integrative-structure, because the centre of sphere of two angular contact articulated bearings is on the symmetry center point of small gear, therefore small gear can be around self central point along spherical rotation, small gear just can be adjusted the variation that self-position is adapted to the gearwheel position by deflection like this, make the final stage gear be in good engagement all the time with this, but the defective of this structure is: (1) makes integral body with axle and crowned teeth, when wearing and tearing appear in crowned teeth, must integral body repair or replace, owing to axle is grown greatly, the crowned teeth processed complex, cause processing difficulties, cause the cost that keeps in repair or change higher, Economy is relatively poor; (2) adopt axle to go up punching and introduce lubricated angular contact articulated bearing of lubricant oil mode and crowned teeth, oil circuit is long, and processing is difficulty, and Economy is relatively poor; (3) confession angular contact articulated bearing and the crowned teeth seal arrangement in order to dustproof anti-leakage of oil is not set, this device can only be used for sealed place, and using scope is narrower.

The model utility content

The purpose of this utility model is at the above-mentioned deficiency of prior art, and a kind of small gear self-reposition device of processing, keep in repair or changing be convenient to is provided, and has the using scope of better economic and broad.

For achieving the above object, small gear self-reposition device of the present utility model, comprise casing, be provided with crowned teeth gear shaft, be installed in angular contact articulated bearing on the gear shaft, be installed on the angular contact articulated bearing, the small gear that its wheel rim endoporus has internal tooth, the axle sleeve that is arranged on wheel rim endoporus two ends and lubricating oil path and lubricating cup, wherein internal tooth and angular contact articulated bearing be arranged on pinion shaft to the centre, the engagement of internal tooth and crowned teeth is characterized in that the described gear shaft that is provided with crowned teeth is axle and the crowned teeth cover that is connected by key with axle;

Form by gear shaft is assembled by key by axle and crowned teeth cover,, need only repair or replace, the cost that has reduced maintenance or changed, its better economy the crowned teeth cover when wearing and tearing appear in crowned teeth;

As further improvement of the utility model, both sides at small gear also are equipped with baffle plate, described lubricating oil path is arranged in baffle plate and the small gear, lubricating oil path communicates with gap between angular contact articulated bearing and the internal tooth, oil port at baffle plate is provided with lubricating cup, this structure oil circuit is shorter, is convenient to processing;

As further improvement of the utility model, the flexible seal ring that is equipped with and is coupling and touches on every baffle plate can prevent the leakage with lubricant grease of entering of dust, has the using scope of broad.

In sum, small gear self-reposition device of the present utility model is convenient to processing, maintenance or is changed, and has the using scope of better economic and broad.

Description of drawings

Fig. 1 is a plan view of the present utility model.

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is that the D of Fig. 1 is to view.

Fig. 4 is the C-C sectional view of Fig. 3.

Fig. 5 is the B place partial enlarged drawing of Fig. 4.

Embodiment

By Fig. 1, Fig. 2 and shown in Figure 3, this small gear self-reposition device, comprise casing 1, be installed on the casing 1 and be provided with the gear shaft 13 of crowned teeth, be installed in the angular contact articulated bearing 8 on the gear shaft 13, be installed on the angular contact articulated bearing 8, its wheel rim endoporus has the small gear 2 of internal tooth 3, be arranged on the axle sleeve 7 at wheel rim endoporus two ends, be installed in the baffle plate 12 at small gear 2 two ends respectively by bolt 4 and spring washer, by bolt 6, spring washer and hold-down ring 9 be installed in respectively baffle plate 12 two ends and with gear shaft 13 the axle contacted flexible seal ring 11, wherein internal tooth 3 and angular contact articulated bearing 8 are arranged on the axial centre of small gear 2, in the angular contact articulated bearing 8,

outer spheroid

8a, 8b is split-type structural and the both sides that place internal tooth 3, the described gear shaft that is provided with crowned teeth 13 for axle 13a with overlap 13b with axle 13a by the crowned teeth that spline is connected, internal tooth 3 and crowned teeth cover 13b engagement, by Fig. 3, Fig. 4 and shown in Figure 5, in baffle plate 12 and small gear 2, be provided with angular contact articulated bearing 8 and internal tooth 3 between the lubricating oil path 15 that communicates of gap, be provided with lubricating cup 16 at the oil port of baffle plate 12.

Claims

1. small gear self-reposition device, comprise casing, be provided with crowned teeth gear shaft, be installed in angular contact articulated bearing on the gear shaft, be installed on the angular contact articulated bearing, the small gear that its wheel rim endoporus has internal tooth, the axle sleeve that is arranged on wheel rim endoporus two ends and lubricating oil path and lubricating cup, wherein internal tooth and angular contact articulated bearing be arranged on pinion shaft to the centre, the engagement of internal tooth and crowned teeth is characterized in that the described gear shaft that is provided with crowned teeth is axle and the crowned teeth cover that is connected by key with axle.

2. small gear self-reposition device according to claim 1, it is characterized in that baffle plate also being installed in the both sides of small gear, described lubricating oil path is arranged in baffle plate and the small gear, and lubricating oil path communicates with gap between angular contact articulated bearing and the internal tooth, is provided with lubricating cup at the oil port of baffle plate.

3. small gear self-reposition device according to claim 1 and 2 is characterized in that the flexible seal ring that is equipped with and is coupling and touches on every baffle plate.