CN2879619Y

CN2879619Y - Gear box of rotary cultivator

Info

Publication number: CN2879619Y
Application number: CNU2006200075117U
Authority: CN
Inventors: 张国峰; 张子瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-03
Filing date: 2006-03-03
Publication date: 2007-03-21
Anticipated expiration: 2016-03-03

Abstract

The utility model relates to a gear box of rotary cultivator, belongs to soil tillage machine and device which classifying number is A01B33/08, is assembled by a box, a box sheath, a conical gear A, a conical gear B, a gear A, a gear B, a small spline shaft, a big spline shaft, a integrative slide gear, a block mechanism, a bearing, universal parts, standard parts. Wherein, the small spline shaft and the big spline shaft are parallel supported in a vertical face in the box by bearings. An integrative slide gear is assembled on the big spline shaft on which the integrative slide gear can slide. A big gear and a small gear are on the integrative slide gear, the big gear and the small gear mate separately with gear A and gear B installed on the small spline shaft, forming two groups of transmission pair. A block mechanism pulls out the slide gear, which forms two transmission configures. The conical gear A on the small spline shaft mate with gear B on the vertical direction which is installed on the box through the box sheath. The input shaft of tractor mate with the shaft hole of the conical gear B to transfer power. The utility model has two step transmission, and is with compact structure, convenient to use.

Description

A kind of gearbox of rotovator

Technical field

The utility model relates to a kind of gearbox of rotovator, belongs to the soil cultivation machining machine and tool.Patent classificating number: A01B33/08, A01B49/02.

Background technology

When general use rotovator is ploughed, be connected the chain drive of using more, trouble is installed with tractor; After change the universal drive shaft transmission into, install easily, but the rotary tiller shaft rotating speed is single, is not suitable for the slow second gear operation of tractor; After another improves, a high speed gear is installed, but the driver changes the rotovator gear at every turn in final transmission case, must stop earlier and go to the gearshift of rotovator position then, very inconvenient.In addition, even the rotovator of gearbox is arranged, its gearbox also is contained in the position away from the driver, and the driver is not easy to operation, if think speed change, the driver need get off, and moves handle, and is very inconvenient.

Summary of the invention

The purpose of this utility model provides a kind of gearbox of rotovator, and this gearbox adopts two retaining speed changes, promptly high rotating speed retaining, slow-speed of revolution retaining; Can select as required; In addition, gearbox is installed in driver's operation on hand, and is easy to use, flexible operation, high efficiency, compact conformation.

The technical solution of the utility model is: a kind of gearbox of rotovator, by casing, housing-case, bevel gear A, bevel gear B, gear A, gear B, disjunctor balladeur train, big splined shaft, little splined shaft, stop lever mechanism and bearing, standard components such as general purpose accessories such as left cap, right cap, loam cake, bolt assemble, it is characterized in that, the big splined shaft of using as output shaft, the little splined shaft of using as power transmission shaft are supported in the vertical plane in the casing abreast by bearing; The output of big splined shaft stretches out outside the casing, is connected with the input of rotovator by cardan axis;

One disjunctor balladeur train is contained on the big splined shaft slidably; Be processed with a gear wheel, a pinion on this disjunctor balladeur train, and be processed with the chute of stirring its slip usefulness on big splined shaft; This gear wheel and pinion can be respectively paid with the gear drive that is contained in gear A, gear B engagement on the little splined shaft, be made into two groups of different drive ratios; On box cover, a stop lever mechanism is housed; This stop lever mechanism is stirred the chute of disjunctor balladeur train, realizes three positions of above-mentioned two groups of ratio transmissions, that is, and and high speed transmission position, low speed transmission position, neutral; In the middle of little splined shaft, install a bevel gear A; With little splined shaft vertical direction on, a bevel gear B who is meshed with bevel gear A is arranged; This bevel gear B is contained on the housing-case by bearing; This housing-case is packed on the casing, and by this housing-case location, casing and tractor is coupled together; The output shaft of tractor is connected to by key in the axis hole of bevel gear B, transmits moment of torsion.

Described two groups of gearratios stirring the realization of disjunctor balladeur train are respectively: 25 to 28,29 to 24; Described bevel gear A is 17 to 15 with the gearratio of bevel gear B engagement.

The transfer gear box of this structure, the project organization compactness, and two kinds of gearratios can be provided, wide to the scope of application of tractor input power; High efficiency in addition, is installed in driver operation on hand, and is easy to operate, flexibly.

Description of drawings

Fig. 1 is the structure chart of the gearbox of a kind of rotovator of the utility model.

Fig. 2 be among Fig. 1 the A-A cross section to view.

Fig. 3 is a big spline shaft structure schematic diagram in the gearbox of a kind of rotovator of the utility model.

Fig. 4 is the medium and small spline shaft structure schematic diagram of the gearbox of a kind of rotovator of the utility model.

Fig. 5 is the gearbox central stop lever structural representation of a kind of rotovator of the utility model.

Fig. 6 is the gearbox middle gear A structural representation of a kind of rotovator of the utility model.

Fig. 7 is the gearbox middle gear B structural representation of a kind of rotovator of the utility model.

Fig. 8 is a disjunctor balladeur train structural representation in the gearbox of a kind of rotovator of the utility model.

Fig. 9 is a bevel gear A structural representation in the gearbox of a kind of rotovator of the utility model.

Figure 10 is a bevel gear B structural representation in the gearbox of a kind of rotovator of the utility model.

Figure 11 is the gearbox raising middle flask nested structure schematic diagram of a kind of rotovator of the utility model.

The working of an invention mode

Below, in conjunction with the accompanying drawings the utility model being described in detail, accompanying drawing 1 is the structure chart of the gearbox of a kind of rotovator of the present utility model.Fig. 2 be among Fig. 1 the A-A cross section to view, as we can see from the figure, the gearbox of a kind of rotovator of the present utility model is by casing 1, housing-case 15, bevel gear B 18, bevel gear A 17, gear A 2, gear B 4, big splined shaft 11, little splined shaft 3, balladeur train 12, lever mechanism 22, and bearing 5,10,16,28 etc., left cap, right cap, general purpose accessories such as

loam cake

6,7,26,27,13,14,19,23 etc., standard components such as

bolt

8,9,20,21,24,25,29,30 assemble, and it is characterized in that, the big splined shaft of using as output shaft 11, the little splined shaft 3 of being made and being used as power transmission shaft by No. 45 steel is by bearing 28,10 and bearing 5 be supported on abreast in the vertical plane in the casing 1 (Fig. 1 paper), the output of big splined shaft 11 stretches out outside the casing 1, is connected with the input of rotovator by cardan axis;

One disjunctor balladeur train 12 is assemblied on the big splined shaft 11 slidably; Be processed with a gear wheel on this disjunctor balladeur train, the number of teeth 29; One pinion, the number of teeth 25; And be processed with the chute of stirring its slip usefulness on big splined shaft 11; This gear wheel and pinion can mesh with the gear A 2, the gear B 4 that are contained on the little splined shaft 3 respectively, and the gear drive that is made into two groups of different drive ratios is paid; Two groups of gearratios are respectively: 25 to 28,29 to 24.

On the loam cake 14 of casing 1, a stop lever mechanism 22 is housed; This stop lever mechanism 22 is stirred the chute of disjunctor balladeur train 12, realizes three positions of above-mentioned two groups of ratio transmissions, that is, and and high speed transmission position, low speed transmission position, neutral (neutral); In the middle of little splined shaft 3, install a bevel gear A 17; With little splined shaft 3 vertical direction on (Fig. 1, paper vertical direction), a bevel gear B 18 (Fig. 2) who is meshed with bevel gear A 17 is arranged; Described bevel gear A 17 is 17 to 15 with the gearratio of bevel gear B 18 engagements; Bevel gear B 18 is contained on the housing-case 15 by bearing 16; This housing-case 15 is contained on the casing 1 by bolt 20 and spring washer 21; And, casing 1 and tractor are coupled together by these housing-case 15 location; The output shaft of tractor is connected to by key in the axis hole of bevel gear B 18, transmits moment of torsion, sees Fig. 2.

The power take-off of tractor with bevel gear A 17 engagements, passes to power on the little splined shaft 3 by bevel gear B 18 like this, and little splined shaft 3 passes to the approach of power by two different drive ratios on the big splined shaft 11 as output shaft; The output of big splined shaft 11 is connected with the input of rotovator by cardan axis (figure does not draw) in the casing outside, and rotovator rotates by the gearratio of accepting.

Because the gearbox of this structure is simple in structure, compact dimensions, and two kinds of different rotating speeds can be provided, and so to the tractor input power, the scope of application is wide, it is more reasonable to mate, and can adjust under different input speeds, therefore, operating efficiency is higher.

In addition, this gearbox is installed in the driver on hand, and is easy to operate, improved operating efficiency.

Therefore, the gearbox that rotovator of the present utility model is used has, and is simple in structure, compact, convenience operation.

Rights protection scope of the present utility model is illustrated in claims.

Claims

1. the gearbox of a rotovator, by casing, housing-case, bevel gear A, bevel gear B, gear A, gear B, disjunctor balladeur train, big splined shaft, little splined shaft, stop lever mechanism and bearing, standard components such as general purpose accessories such as left cap, right cap, loam cake, bolt assemble, it is characterized in that, the big splined shaft of using as output shaft, the little splined shaft of using as power transmission shaft are supported in the vertical plane in the casing abreast by bearing; The output of big splined shaft stretches out outside the casing, is connected with the input of rotovator by cardan axis;

One disjunctor balladeur train is contained on the big splined shaft slidably; Be processed with a gear wheel, a pinion on this disjunctor balladeur train, also be processed with the chute of stirring its slip usefulness on big splined shaft; This gear wheel and pinion can be respectively paid with the gear drive that is contained in gear A, gear B engagement on the little splined shaft, be made into two groups of different drive ratios; On box cover, a stop lever mechanism is housed; This stop lever mechanism is stirred the chute of disjunctor balladeur train, realizes three positions of above-mentioned two groups of ratio transmissions, that is, and and high speed transmission position, low speed transmission position, neutral; In the middle of little splined shaft, install a bevel gear A; With little splined shaft vertical direction on, a bevel gear B who is meshed with bevel gear A is arranged; This bevel gear B is contained on the housing-case by bearing; This housing-case is packed on the casing, and by this housing-case location, casing and tractor is coupled together; The output shaft of tractor is connected to by key in the axis hole of bevel gear B, transmits moment of torsion.

2. according to the gearbox of the described a kind of rotovator of claim 1, it is characterized in that described two groups of gearratios stirring the realization of disjunctor balladeur train are respectively: 25 to 28,29 to 24; Described bevel gear A is 17 to 15 with the gearratio of bevel gear B engagement.