CN2537740Y

CN2537740Y - Steering gear for digging machine shovel

Info

Publication number: CN2537740Y
Application number: CN 02229018
Authority: CN
Inventors: 罗群雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-09
Filing date: 2002-04-09
Publication date: 2003-02-26
Anticipated expiration: 2012-04-09

Abstract

The utility model provides a steering device for the scraper bucket of the excavating machine. The middle section of the upper arm of the excavating machine is made into cylindrical inner and outer layer connections, and the movement key is pushed by a hydraulically operated hoisting jack is used to convert the longitudinal movement into an axial rotation, to enable the arm end connected with the scraper bucket to perform the corresponding rotation, to reach the purpose that the scraper bucket can be steered. The device solves the disadvantage that the direction of the scraper bucket of the excavating machine is unitary, the using power of the excavating machine is increased, the operation of the excavating machine becomes more convenient and has more purposes, and the construction efficiency is enhanced.

Description

But power shovel transfer

Technical field:

The utility model relates to a kind of plant equipment of excavating earth and rock works, but especially a kind of power shovel transfer.

Background technology:

At present, existing excavation machinery scraper bowl direction is all fixed, and the shovel forward that has digs, and heeling out of having dug, because excavator is bulky, heavy, reverses its direction is not easy, and is subjected to the restriction of scraper bowl direction during construction, brings a lot of inconvenience to mechanical execution.

Summary of the invention:

The purpose of this utility model provides a kind of scraper bowl direction and can turn at any time, easy construction, but the power shovel transfer of increasing work efficiency.

Technical solution adopted in the utility model is: make cylindric inside and outside layer in the stage casing of excavator upper arm and connect, promoting shifting bond(s) with the jack that surges will vertically move and convert axial rotation to, make the arm end that connects scraper bowl do corresponding the rotation, reach the purpose that scraper bowl can turn to.

Concrete structure is: the inside and outside load-bearing ring 2 of nonrotational cylinder 14 usefulness of upper arm, stationary positioned ring 1 are nested with activity orientation ring 13 and are connected internal layer rotatable cylinder 12, are fixed on the thread groove 10 on the rotatable cylinder; The shift fork 6 that surges connects shifting bond(s) control stick 7 and connects shifting bond(s) 8, adds rectangular groove 9; Built-in jack 11 usefulness sliding seat 4 are installed in inner layer cylinder 12 the insides, and the rotation center position that built-in woven hose 3 is arranged on cylinder stretches out; The 20 one-tenth bendings of arm end that connect scraper bowl.The square of shifting bond(s) 8 is partly near in the left and right hand thread groove 10 that is fixed on inner layer cylinder.

This device solves the shortcoming of power shovel single direction, can turn angle, direction at any time easily, especially in large-scale powerful excavator, use more outstanding; In construction, sometimes need hook to dig, need sometimes to shovel when digging, also having the horizontal shovel of needs, hook, large excavator is because the fuselage heaviness, fuel consumption is big, regular hour and energy all will be taken in every mobile vehicle position, but there has been this scraper bowl transfer just to seem more convenient, increased the function of use and the efficient that has improved mechanical execution of excavator to a certain extent.

Description of drawings:

Elaborate below in conjunction with accompanying drawing:

Fig. 1 is that scraper bowl can turn to the general structure schematic diagram.

Fig. 2 is a cylinder arm section longitudinal sectional drawing.

Fig. 3 is that the internal layer screw thread is left-handed, dextrorotation groove schematic diagram.

Fig. 4 adds the square groove floor map.

Fig. 5 is the shifting bond(s) vertical view.

Fig. 6 is the shifting fork assembly plan view that surges.

The specific embodiment:

(1) stage casing that will have traditional excavator upper arm now is made cylindricly 14, and it is interior 12, outer 14 two-layer that cylinder is divided into, and skin is the non-underarm 21 that is rotationally connected, and internal layer is the scraper bowl 18 that is rotatably connected.Inside and outside two-layer being nested with locating ring 1,13 with load-bearing ring 2 respectively is connected.Above outer cylinder, open rectangular groove and add one and add rectangular groove 9, rectangular groove penetrate barrel align internal layer thread groove 10 mutually cover join, penetrate a shifting bond(s) 8 and internal layer thread groove phase configuration at rectangular groove, in outer top arrangement one two-way hydraulic jack 5, jack stretch out the termination shifting bond(s), utilize the flexible power of jack that shifting bond(s) is vertically moved, the shifting bond(s) rectangle is partly inserted the internal layer thread groove, and vertically moving against the slip of thread groove of shifting bond(s) just can make the internal layer of retaining thread groove do corresponding the rotation.4 is built-in jack pad assembly among the figure, and 16 is built-in jack extension bar, and 17 is the scraper bowl push rod, and 19 are scraper bowl interlock piece, and 21 is underarm, and 22 are upper arm action jack, and 23 is the upper arm projected square part.

(2) above shifting bond(s), stretch out a little control stick 7, adorn the shift fork 6 that surges in the upper fixed of jack 5.When shifting bond(s) is got back to the mobile originating position, little control stick is connected with shift fork, laterally the stirring of shift fork makes angle of shifting bond(s) axial rotation, thread groove be provided with left-handed and dextrorotation groove (see figure 3), and the rotatable cylinder that installs and fixes thread groove just can be turned left or to right rotation.Consider the restriction of built-in woven hose 3, only accurate Rotate 180 degree will change direction and must get back to the shifting bond(s) originating location, and left and right direction is rotated in the shift fork adjustment with surging.

(3) jack 11 that makes scraper bowl do vertically to stir is contained in the cylinder, and the home position that the woven hose 3 of jack is arranged in cylinder extends back, non rotatable correct position stretch out with outside woven hose be connected.Built-in jack 11 usefulness loose joint seats 4 are contained in and can change in the cylinder.Jack 11 was followed rotation when inner cylinder rotated, and woven hose 3 is owing to be arranged in the rotation center position, and displacement is very little during rotation, had guaranteed the rotation of cursor 180 degree.

(4) the arm end 20 that connects scraper bowl is made crooked shape, its objective is to guarantee that built-in jack has enough activity spaces.

Claims

But 1, a kind of power shovel transfer comprises the scraper bowl push rod and the built-in jack extension bar that connect scraper bowl, and upper and lower arm and the shifting bond(s) jack, hydraulic pressure shift fork and the shifting bond(s) control stick that are connected and fixed with it is characterized in that:

The nonrotational cylinder of upper arm (14) is nested with activity orientation ring (13) with inside and outside load-bearing ring (2), stationary positioned ring 1 and is connected internal layer rotatable cylinder (12), is fixed on the thread groove (10) on the rotatable cylinder;

The shift fork (6) that surges connects shifting bond(s) control stick (7) and connects shifting bond(s) (8), adds rectangular groove (9); Built-in jack (11) is installed in inner layer cylinder (12) the inside with sliding seat (4), and the rotation center position that built-in woven hose (3) is arranged on cylinder stretches out;

The arm end (20) that connects scraper bowl becomes bending.
But 2, power shovel transfer according to claim 1 is characterized in that: the square of shifting bond(s) (8) is partly near in the left and right hand thread groove (10) that is fixed on inner layer cylinder.