CN2591334Y

CN2591334Y - Transfer gear box

Info

Publication number: CN2591334Y
Application number: CN 02269849
Authority: CN
Inventors: 陈波; 郁录平
Original assignee: Yanzhou Dong Fang Electric Co ltd
Current assignee: Yanzhou Dong Fang Electric Co ltd
Priority date: 2002-09-29
Filing date: 2002-09-29
Publication date: 2003-12-10
Anticipated expiration: 2012-09-29

Abstract

The utility model relates to a transfer gear box. The top of the transfer gear box is provided with a box cover and a bar type oil scale, the upper part of the box is provided with a power input shaft, a shifting fork cover, a shifting fork shaft, a power output shaft, a safety pin and a safety pin sleeve, and the lower part of the transfer gear box is provided with a hydraulic pump. A box casing is provided with a mounting surface of a thread hole; the bottom of the box casing is provided with an oil drain plug; an output shaft gear, a gear shifting fork, a positioning bolt of the shifting fork shaft, a positioning spring, a positioning steel ball, an engagement sleeve, an intermediate shaft, an intermediate shaft gear and a power output gear shaft. The utility model has the advantages of high transmission efficiency, good service performance, high reliability, advanced structure, convenient operation, etc. The utility model can be used for power output and transmission of the engineering machinery.

Description

The transfer gearbox

The utility model belongs to output of engineering machinery power and transmission device technical field.

In present engineering machinery power output and the transmission device following problem is arranged.The one, the speed reducer in the mechanical transmission is given the starting of equipment or is stopped manipulation and bring difficulty owing to there is not neutral gear.The 2nd, power output and transmission device have only an output speed of fixing, and when this made equipment under specified operation power operating mode and to different effective object, active force power was identical, and this is unfavorable for improving machine productivity.The 3rd, lack overload protection arrangement to equipment, transmission component and motor.The 4th, in the self-propelled engineer machinery prior art, the machine running gear all adopts the hydraulic machinery transmission, the walking oil hydraulic pump is directly driven by motor, and this brings difficulty not only for the starting of motor, and all causes difficulty and inconvenience for the transmission of oil hydraulic pump and layout.

The purpose of this utility model is to overcome the shortcoming and defect of above-mentioned engineering machinery power output and transmission device, for engineering machinery power is exported and transmission device provides that a kind of transmission efficiency height, usability are good, the new drive device of good reliability, structure advanced person, handiness.

For achieving the above object, the solution that the utility model adopts is: transfer gearbox top is provided with case lid and rod-type oil ga(u)ge, top one side is provided with power input shaft and the input port that links with clutch, and offside is provided with safety coupling and the pto that links with cardan shaft.The bottom is provided with the clutch end mouth that links with oil hydraulic pump.The bottom is provided with oil drain plug.Be provided with shifting fork, engagement cover, jack shaft, countershaft-gear, output shaft gear and power output gear axle in the transfer gearbox.

The utility model is compared with existing transmission device, and the first, after the walking oil hydraulic pump was arranged on clutch, engine start especially cold-starting was easy, and had simplified the transmission and the layout of walking oil hydraulic pump; The second, be provided with neutral gear in the transfer gearbox, easy and convenience is handled the starting of equipment or is stopped; The 3rd, be provided with the height gear in the transfer gearbox, help machine and when operation difference object, improve machine productivity; The 4th, on transfer gearbox pto, be provided with safety coupling, equipment, transmission component and motor have been realized overload protection.

Fig. 1 is transfer gearbox external form figure.

Fig. 2 is that the A of Fig. 1 is to view.

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

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

The utility model is described in further detail below in conjunction with drawings and Examples.

In Fig. 1, transfer gearbox top is equipped with case lid 2 and rod-type oil ga(u)ge 3.Case lid 2 and case shell by Bolt Connection to housing 22.Taking case lid 2 apart can interior driving parts of dismounting case and interpolation lubricant oil.Rod-type oil ga(u)ge 3 is used to refer to lubricant level in the case.Transfer gearbox top is equipped with power input shaft 1, shift fork lid 4, declutch shift shaft 5, pto 6, safety pin 7 and safe guide 8.Be processed with spline on the power input shaft 1, link by the driven friction disk of spline power input shaft 1 with clutch.Declutch shift shaft 5 outside head ends and shift link, and shift fork lid 4 is used for the location of declutch shift shaft 5.Pto 6 outside head ends are equipped with output shaft tie-plate 13, and tie-plate 13 links by safety pin 7 and safe guide 8 and the transmission dish 12 that is coupling.Transmission is coupling dish 12 by Bolt Connection cardan shaft 23.7 pairs of milling rotors of safety pin, transmission component and motor are implemented overload protection.Safe guide 8 guarantees safety pin 7 clipped position accurately.Transfer gearbox bottom is equipped with oil hydraulic pump 9, for running gear provides hydraulic power.

In Fig. 2, the tapped hole on the case shell attachment face 10 is used for transfer gearbox Bolt Connection to clutch.

In Fig. 3, case shell 22 bottoms are equipped with oil drain plug 11, are used for more oil change and cleaning box house.

In Fig. 4, output shaft gear 14, gear shift fork 15, declutch shift shaft holding down bolt 16, retaining spring 17, locking ball 25, engagement cover 18, jack shaft 20, countershaft-gear 19 and 23 and power output gear axle 21 are installed in the transfer gearbox.Gear shift fork 15 is used to mesh cover 18 moving in neutral position, high gear and low speed position.Engagement cover 18 is neutral gear when the neutral position, and position, a left side is a high gear, and right position is a low gear.Holding down bolt 16, retaining spring 17 and locking ball 25 are used to mesh the accurate location of cover 18.Countershaft-gear 19, jack shaft 20, countershaft-gear 23 and output shaft gear 14 are used for the dynamic retarding transmission.Countershaft-gear 19 also with power output gear axle 21 engagement driving, thereby drive oil hydraulic pump.Oil hydraulic pump 9 links by spline and power output gear axle 21.

Also can design the transfer gearbox of another concrete structure according to above-mentioned principle.

Claims

1, a kind of transfer gearbox, it is characterized in that: transfer gearbox top is provided with case lid [2] and rod-type oil ga(u)ge [3], transfer gearbox top is provided with power input shaft [1], shift fork lid [4], declutch shift shaft [5], pto [6], safety pin [7] and safe guide [8], transfer gearbox bottom is equipped with oil hydraulic pump [9], the case shell is provided with the attachment face [10] of tapped hole, be provided with oil drain plug [11] in case shell [22] bottom, be provided with output shaft gear [14] in the transfer gearbox, gear shift fork [15], declutch shift shaft holding down bolt [16], retaining spring [17], locking ball [25], engagement cover [18], jack shaft [20], countershaft-gear [19] and [23] and power output gear axle [21].

2, according to the said transfer gearbox of claim 1, it is characterized in that said pto [6] is: the outside head end of output shaft [6] is provided with output shaft tie-plate [13], tie-plate [13] is provided with safety pin [7] and safe guide [8], and link with the transmission dish [12] that is coupling, the inner head end of output shaft [6] both can move with power input shaft [1] by engagement cover [18] and directly link, can move and countershaft-gear [19] by engagement cover [18] again, jack shaft [20], countershaft-gear [23] and power input shaft [1] link, and can also move with power input shaft [1] by engagement cover [18] and throw off.

3, according to the said transfer gearbox of claim 1, it is characterized in that: oil hydraulic pump [9] connects with power output gear axle [21] by spline, and by being bolted on the transfer transmission housing.