Method for arranging rolling-friction stretching and retraction based rolling stroke sections of a rocker arm in parallel, and an excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel

Abstract

An excavator or loader comprises a rocker arm, a machine body, and a work head, wherein the rocker arm comprises a front roller, a rear roller, a front roller raceway, a rear roller raceway, a telescopic arm, a telescopic support arm; the front roller raceway and the rear roller raceway are arranged in parallel; the front roller rolls within the front roller raceway; the rear roller rolls within the rear roller raceway; the front roller coordinates with the rear roller to support the telescopic arm to perform the rolling-friction stretching and retraction on the telescopic support arm by means of rolling friction; the work head is connected with the telescopic arm which drives the work head to stretch or retract; the telescopic support arm is connected with the machine body, according to a method for arranging rolling-friction stretch and retraction based rolling stroke sections of a rocker arm in parallel.

1 . A method for arranging rolling-friction stretching and retraction based rolling stroke sections of a rocker arm in parallel, which is implemented by the following steps:
 step 1: providing a front roller, a rear roller, a front roller raceway, a rear roller raceway, a telescopic arm, and a telescopic support arm; disposing the front roller raceway on the telescopic arm or the telescopic support arm; disposing the rear roller raceway on the telescopic support arm or the telescopic arm or the machine body; disposing the front roller on the telescopic support arm or the telescopic arm; disposing the rear roller on the telescopic arm or the telescopic support arm; arranging the front roller raceway and the rear roller raceway in parallel; rolling the front roller within the front roller raceway; rolling the rear roller within the rear roller raceway; and coordinating the front roller with the rear roller to support the telescopic arm to perform rolling-friction stretching and retraction on the telescopic support arm by means of rolling friction;   step 2: providing a work head, and connecting the work head with the telescopic arm so that the telescopic arm drives the work head to stretch and retract; and   step 3: connecting the telescopic support arm with a machine body, and providing a traveling gear on the lower part of the machine body so that the traveling gear drives the machine body to travel.   
     
     
         2 . A method for arranging rolling-friction stretching and retraction based rolling stroke sections of a rocker arm in parallel, which is implemented by the following steps: configuring a front roller as a fixed wheel; configuring a rear roller as a traveling wheel; configuring a front roller raceway as a fixed wheel raceway; configuring a rear roller raceway as a traveling wheel raceway; arranging the fixed wheel raceway and the traveling wheel raceway in parallel; disposing the fixed wheel raceway along the direction of the traveling wheel raceway, and clipping the fixed wheel raceway onto the fixed wheel to partially or completely overlap the travelling wheel raceway and the fixed wheel raceway; and overlapping the fixed wheel and some or all of the rolling stroke sections of the traveling wheel, thereby shortening the length between the fixed wheel raceway and the traveling wheel raceway arranged one behind the other, reducing the length of the rocker arm under the condition of equal stretching and retracting distances, and shortening the force arm of the work head that twists a machine body. 
     
     
         3 . An excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel for implementing the method for arranging rolling-friction stretching and retraction based rolling stroke sections of a rocker arm in parallel according to  claim 1 , characterized in that the excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel comprises a rocker arm, a machine body, and a work head, wherein the rocker arm comprises a front roller, a rear roller, a front roller raceway, a rear roller raceway, a telescopic arm, and a telescopic support arm; the front roller raceway is disposed on the telescopic arm or the telescopic support arm; the rear roller raceway is disposed on the telescopic support arm or the telescopic arm or the machine body; the front roller is disposed on the telescopic support arm or the telescopic arm; the rear roller is disposed on the telescopic arm or the telescopic support arm; the front roller raceway and the rear roller raceway are arranged in parallel; the front roller rolls within the front roller raceway; the rear roller rolls within the rear roller raceway; the front roller coordinates with the rear roller to support the telescopic arm to perform rolling-friction stretching and retraction on the telescopic support arm by means of rolling friction; the work head is connected with the telescopic arm which drives the work head to stretch and retract; and the telescopic support arm is connected with the machine body. 
     
     
         4 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 3 , characterized in that the work head comprises a rolling harrow, or a reciprocating impact head, or a bucket, or a scraper box, or a cutting drum, or a crushing head, or a combination of the reciprocating impact head and the bucket, or a combination of the rolling harrow and the scraper box, or a combination of the rolling harrow and the reciprocating impact head. 
     
     
         5 . (canceled) 
     
     
         6 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 3 , characterized in that the front roller comprises a fixed wheel; the rear roller comprises a traveling wheel; the front roller raceway comprises a fixed wheel raceway; the rear roller raceway comprises a traveling wheel raceway; the fixed roller raceway and the telescopic arm are separately connected or integrated; the traveling wheel raceway and the telescopic support arm are separately connected or integrated; the fixed wheel is disposed on the front end of the telescopic support arm and rolls within the fixed wheel raceway; the traveling wheel rolls within the traveling wheel raceway and is fixed at the rear part of the telescopic support arm; the fixed wheel raceway and the traveling wheel raceway are arranged in parallel; and the fixed wheel overlaps to some or all of the rolling stroke sections of the traveling wheel, thereby shortening the length between the fixed wheel raceway and the traveling wheel raceway arranged one behind the other, reducing the length of the rocker arm under equal stretching and retracting distances, reducing the volume height of the rocker arm, and shortening a force arm that damages the machine body through twisting. 
     
     
         7 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 6 , characterized in that the fixed wheel raceway comprises a fixed wheel groove; the telescopic arm comprises a rolling harrow telescopic arm; the telescopic support arm comprises a rolling harrow telescopic support arm; the fixed wheel groove and the rolling harrow telescopic arm are separately connected or integrated; the traveling wheel raceway is disposed on the telescopic support arm; the rear roller comprises a slide opening roller; the traveling wheel raceway comprises a slide opening roller groove, which rolls within the slide opening roller groove and is fixed at the rear part of the rolling harrow telescopic arm; the fixed wheel groove and the slide opening roller groove are arranged in parallel; when the rolling harrow telescopic arm is lifted up by bulk materials, the fixed wheel groove hoists the fixed wheel to pull up the rolling harrow telescopic support arm; and the slide opening roller and the fixed wheel support and pull the rolling harrow telescopic arm to stretch/retract and ascend/descend. 
     
     
         8 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 3 , characterized in that the outer surface of the rear roller is provided with a concave surface or a convex surface; if the outer surface of the rear roller is provided with a concave surface, the rear roller raceway is correspondingly provided with a convex surface clipped to the concave surface of the rear roller to conduct rolling guide for the telescopic arm; and if the outer surface of the rear roller is provided with a convex surface, the rear roller raceway is correspondingly provided with a concave surface clipped to the convex surface of the rear roller to conduct rolling guide for the telescopic arm. 
     
     
         9 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 3 , characterized in that the front roller and the rear roller are disposed between the telescopic arm and the telescopic support arm to form a rolling guide device; the rolling guide device comprises a protector for preventing mud, water, dust or material from entering the rolling guide device. 
     
     
         10 . (canceled) 
     
     
         11 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 3 , characterized in that the rocker arm is hingedly connected with the machine body via a rotary limiting hinge shaft or is connected with the machine body via a rotary structure; a rotation-stopping limiting structure is disposed at the hinge joint or rotary joint of the rocker arm and the machine body; the rotation-stopping limiting structure comprises a rotary limiting platform and a machine body rotation-stopping platform; the rotary limiting platform rotates about the rotary structure or the limiting hinge shaft; when the rotary limiting platform rotates to an angle where the telescopic support arm and the work head are about to be in collision with a shovel plate, the machine body rotation-stopping platform is pressed against the rotary limiting platform so that the machine body rotation-stopping platform stops the rotary limiting platform from continuing rotating; the rocker arm is limited to continue descending by limiting the rotation angle thereof, so that a reasonable safety gap is maintained between each of the rocker arm and the work head and the shovel plate. 
     
     
         12 . (canceled) 
     
     
         13 . (canceled) 
     
     
         14 . (canceled) 
     
     
         15 . (canceled) 
     
     
         16 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 3 , characterized in that the machine body comprises a shovel plate controller, the shovel plate controller is disposed on the upper part of the machine body; the machine body comprises a shovel plate controller support; one end of the shovel plate controller is hingedly connected to the shovel plate controller support or is connected with the shovel plate controller support via a rotary structure, and the other end thereof is connected with the shovel plate frame; the joint of the shovel plate frame and the machine body frame is disposed on the lower part of the machine body; a distance from the shovel plate controller support on the upper part of the machine body to the force arm at the joint of the shovel plate frame and the machine body frame is greater than a distance, in the event that the shovel plate controller is disposed on the lower part of the machine body, from the shovel plate controller support to the force arm at the joint of the shovel plate frame and the machine body frame; the shovel plate controller drives the shovel plate frame; and the shovel plate frame drives the shovel plate to ascent/descend, thereby reducing power consumption and the number of the shovel plate controllers. 
     
     
         17 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 3 , characterized in that the rear roller raceway comprises an anti-swing roller groove; the rear roller comprises an anti-swing roller; the anti-swing roller groove and the machine body are separately or fixedly connected; the anti-swing roller performs linear reciprocating rolling in the anti-swing roller groove to support the rolling-friction stretching and retraction of the telescopic arm; and the telescopic arm is limited to swing from side to side by the anti-swing roller. 
     
     
         18 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 3 , characterized in that the rear roller raceway comprises an anti-swing roller groove; the front roller raceway comprises an ascending/descending roller groove; the anti-swing roller groove and the ascending/descending roller groove are arranged separately in parallel or are arranged into one piece; the front roller is an ascending/descending roller; the rear roller is an anti-swing roller; the ascending/descending roller rolls within the ascending/descending roller groove; the anti-swing roller rolls within the anti-swing roller groove; the rocker arm is hingedly connected with the machine body or is connected with the machine body via a rotary structure; the telescopic arm is limited to swing non-directionally from side to side by the anti-swing roller and the telescopic support arm is driven to ascend/descend by the ascending/descending roller, to reduce a height between the anti-swing roller groove and the ascending/descending roller groove arranged one below the other, as well as the volume height of the rocker arm; and the ascending/descending roller groove and/or the anti-swing roller groove guides the rocker arm. 
     
     
         19 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 11 , characterized in that the rotation-stopping limiting structure enables the rocker arm to form a tilt angle relative to the ground; the tilt angle enables the work head not to be in collision with shovel plate; due to the tilt angle, the rocker arm enables the work head to be lower than the shovel plate when stretching out of the upper part of the shovel plate and to excavate, mill, load or crush the materials in the front of the shovel plate. 
     
     
         20 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 3 , characterized in that the machine body comprises a shovel plate frame; a shovel plate frame limiting gantry is disposed on the shovel plate frame at the lower part of the rocker arm; the shovel platform frame limiting gantry lifts up the telescopic support arm when the rocker arm and the work head descend to be about to collide with the shovel plate, thereby preventing the rocker arm and the work head from descending to be in collision with the shovel plate. 
     
     
         21 . (canceled) 
     
     
         22 . (canceled) 
     
     
         23 . (canceled) 
     
     
         24 . (canceled) 
     
     
         25 . (canceled) 
     
     
         26 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 3 , characterized in that the machine body comprises a rotary disk which comprises a rotary inner disk and a rotary outer disk, wherein the rotary inner disk and the rotary outer disk oppositely rotate; when the rotary inner disk is fixed on the machine body, the rotary outer disk rotates relative to the rotary inner disk; when the rotary outer disk is fixed on the machine body, the rotary inner disk rotates relative to the rotary outer disk; one end of the rocker arm is connected to the rotary inner disk under rotation or the rotary outer disk under rotation; the machine body comprises a rotary disk rotation controller which drives the rotary inner disk or the rotary outer disk to rotate; one end of the telescopic arm controller is connected with the rotary inner disk under rotation or the rotary outer disk under rotation, and the other end thereof is connected with the telescopic arm; and the rocker arm rotates with the rotary disk, to expand the excavation and/or loading range. 
     
     
         27 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 3 , characterized in that the rocker arm or the machine body comprises a side-to-side movement controller; the telescopic arm comprises a telescopic section and a support work head section; the telescopic section is hingedly connected with the support work head section; a hinge shaft is disposed perpendicularly to the ground; one end of a stretching and retraction controller is connected with the machine body via a rotary structure or is connected with the telescopic support arm, and the other end thereof is connected with the telescopic section; one end of the side-to-side movement controller is connected with the machine body via a rotary structure or is connected with the telescopic support arm or the telescopic section, and the other end thereof is connected with support work head section; the side-to-side movement controller drives the support work head section to move from side to side; and the side-to-side movement controller leads the support work head section to move from side to side. 
     
     
         28 . The excavator or loader comprising a rocker arm having rolling stroke sections arranged in parallel according to  claim 3 , characterized in that the rocker arm and/or the machine body comprises a rolling harrow driving device; the rolling harrow comprises harrow teeth and a tooth cylinder; and the rolling harrow driving device comprises an electrical machine or a motor, which is disposed inside or outside the tooth cylinder. 
     
     
         29 . (canceled) 
     
     
         30 . (canceled) 
     
     
         31 . (canceled) 
     
     
         32 . (canceled) 
     
     
         33 . (canceled) 
     
     
         34 . (canceled) 
     
     
         35 . (canceled)