CN2304502Y

CN2304502Y - Horizontal lathe feed gearbox

Info

Publication number: CN2304502Y
Application number: CN 97236907
Authority: CN
Inventors: 赵波; 张秀启; 夏一峰
Original assignee: YANCHENG CITY MACHINE-TOOL FACTORY
Current assignee: YANCHENG CITY MACHINE-TOOL FACTORY
Priority date: 1997-08-22
Filing date: 1997-08-22
Publication date: 1999-01-20
Anticipated expiration: 2007-08-22

Abstract

The utility model relates to a feeding box for an ordinary horizontal lathe. The utility model is mainly composed of a box body, a basic group, a multiplying group, etc. The basic group is a four-linking sliding gear speed-changing mechanism which is composed of a drive shaft, a driven shaft, four-linking sliding gear groups, gears, and a control mechanism of the gears. The drive shaft is provided with four-linking sliding gears. The driven shaft is fixedly, dispersedly and correspondingly provided with four gears. The utility model uses the four-linking sliding gear speed-changing mechanism of the basic group to change speed in four levels, and then the speed is multipled by the multiplying group in order to machine various threads and longitudinal or transverse feeding amount. The utility model has the advantages of simple structure, reliable performance, high precision, long service life, convenient operation, low cost, low noise, etc.

Description

The horizontal lathe feed box

The utility model relates to the feed box of a kind of general horizontal lathe, particularly lathe.

At present, both at home and abroad the engine lathe feed box by basic speed change group (being called for short group substantially) with increase and doubly organize two gears and other parts composition; Wherein, the version of basic group mainly contains following several: the one, and a mechanism falls, adopt the feed box of this mechanism to be open architecture, casing can not seal, store oil, so parts are lubricated bad, movement parts is lower accuracy life, and the required normal sideshake of gears engaged can not get guaranteeing, so transmission accuracy, noise are all had harmful effect; The 2nd, an Improvement type mechanism that falls, it is to improve to form on the basis of the former mechanism that falls to timing, mainly be to have increased the comparatively complicated dual-handle operating mechanism of a cover, make casing can seal store oil, the lubrication circumstances of movement parts is improved, but the required normal sideshake of gears engaged still can not get good assurance, and the processing technology of the part of operating mechanism is relatively poor relatively, and production cost is higher; The 3rd, slip key type, the characteristics of this structure are that all gears of basic group all are in engagement simultaneously, during work by wherein a pair of gear transmission motion, all the other gears are in idling conditions, which selecting, working gear is moved around by the feather key in the operating mechanism manipulation hollow shaft select, because meshed gears is many simultaneously, so noise is bigger, and operating mechanism is comparatively complicated, the manufacturing cost height; Four be three sliding, it contains three power transmission shafts, so amount of parts is more, the structure relative complex.In sum: existing lathe feed box be owing to can not select basic group of optimum structure, thereby exists or complex structure, cost height, shortcoming such as noise is big or accuracy life is low, operation inconvenience, performance are not good.

In order to overcome the deficiencies in the prior art part, the purpose of this utility model is to provide the lathe feed box of a kind of new structure for basic group, and it is simple in structure, dependable performance, accuracy life length, handiness, cost is low, noise is little.

Technical solution of the present utility model is: its mainly by casing, organize substantially and increase doubly group etc. and form, it is organized substantially and is the tetrad sliding gear speed change mechanism.

The utility model is owing to adopt the tetrad sliding gear speed change mechanism to organize substantially for it, thus have simple in structure, dependable performance, accuracy life length, handiness, advantage such as cost is low, noise is little.

Description of drawings:

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 organizes the operating mechanism schematic diagram substantially for the utility model.

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

Be provided with basic group and increase doubly group in the casing, above-mentioned basic group is a tetrad sliding gear speed change mechanism, it is made of driving shaft I, driven shaft II and tetrad shifting slide gear group, gear and operating mechanism thereof, on the driving shaft I, be provided with tetrad shifting slide gear 4,3,2,1, gear by diameter by in, maximum, large and small arrangement, on the driven shaft II, fix, disperse, be provided with accordingly four gears 5,6,7,8, its operating mechanism mainly is made of handle 15, fork 17, fork link rod 16, and handle 15 is located at outside the casing; Above-mentioned to increase doubly group be three slippage gears, establishes three shifting slide gears 14,13,12 on the power transmission shaft III that is provided with in the rear end of driving shaft I, and the rear end of axle II is provided with three fixed gears 9,10,11 accordingly.During work,, drive fork link rod 16, drive fork 17, the tetrad shifting slide gear in basic group is moved around, gear 4 is meshed with 5 or 3 and 6,2 and 7,1 and 8 by turning handle 15, the realization four-speed gear shift, and will move and reach the driven shaft II by the driving shaft I; Gear 9 in increasing doubly group meshes with 14 or 10 and 13,11 and 12 again, increases doubly, thereby realizes the processing of the various screw threads and the vertical, horizontal amount of feeding.

Above-mentioned basic group tetrad shifting slide gear 4,3,2,1 also can be arranged on the driven shaft II, also can be by diameter by little, big, maximum, middle arrangement.

Claims

1, horizontal lathe feed box, its mainly by casing, organize substantially and increase doubly group etc. and form, it is characterized in that described basic group is the tetrad sliding gear speed change mechanism.

2, horizontal lathe feed box according to claim 1, it is characterized in that above-mentioned tetrad sliding gear speed change mechanism mainly is made of driving shaft, driven shaft and tetrad shifting slide gear group, gear and operating mechanism thereof, on driving shaft, be provided with the tetrad shifting slide gear, gear by diameter by in, maximum, large and small arrangement, on driven shaft, fix, disperse, be provided with accordingly four gears, its operating mechanism mainly is made of handle, fork, fork link rod, and handle is located at outside the casing.

3, horizontal lathe feed box according to claim 2 is characterized in that the basic tetrad shifting slide gear of organizing, and also can be arranged on the driven shaft, also can be by diameter by little, big, maximum, middle arrangement.