Hydraulic excavator for mine
Technical field
The equipment that the present invention relates to a kind of hydraulic crawler excavator, particularly a kind of hydraulic crawler excavator and revolution are supported is connected the slewing equipment with big arm and forearm.
Background technology
Excavator is to peel off material and the haulage vehicle or unload the engineering machinery to rickyard of packing into scraper bowl from work plane shovel dress, and the manipulating object that excavator excavated mainly is soil, coal, silt and through soil and rock behind the preparatory pine.The hydraulic crawler excavator organic frame has revolution to support on the frame, the fixation side that revolution is supported is connected on the frame; The rotating side top that revolution is supported has casing, casing to be hinged with by the hinged equipment that forms of big arm, forearm and scraper bowl, and the big arm lower end of equipment is hinged on revolution and supports; The front end of big arm is hinged with forearm, and the front end of forearm is hinged with scraper bowl, and the front of scraper bowl is along teeth is arranged; Big arm and revolution are supported between the casing above the rotating side and are hinged with big arm hydraulic cylinder, are hinged with little arm hydraulic cylinder between big arm and the forearm, are hinged with the scraper bowl hydraulic cylinder between forearm and the scraper bowl; Hydraulic Station is arranged on the frame, and the frame below of excavator also is connected with running gear.In the prior art; The big arm of excavator is to be hinged on revolution to support with locating, and big arm and forearm all are one section rigid arm, and big arm can only drive the upper and lower activity of forearm in vertical direction; Excavator is when operation; Operations such as the front of scraper bowl is along parallel with the ground of level all the time, and this excavator can only be implemented to excavate to the manipulating object on ground, shovel is cut can not be to having the side of certain angle to implement to excavate with the manipulating object on the ceiling, shovel and operation such as cut with ground.Remove the ground stock and in the tunnel, undercut, split nation and remove the operation on top as often having in the down-hole, mine; Above-mentioned excavator of the prior art can only satisfy the operation of removing the ground stock and in the tunnel, undercuting etc., can not do the side, tunnel is split nation and removed the operation on top.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned deficiency; Operation such as propose a kind ofly can implement to excavate, shovel is cut to the manipulating object on ground, also can be to having the side of certain angle to implement to excavate, shovel the hydraulic excavator for mine of operations such as cutting with the manipulating object on the ceiling with ground.
The present invention realizes with following method.
Invention scheme of the present invention is: be hinged on revolution to equipment and support on the rotating side on the horizontal axis on the square box; Be divided into forward and backward two sections with forearm big arm is little; Equipment can be rotated around horizontal axis; The leading portion of big arm and forearm can make operations such as excavator can be implemented to excavate to the manipulating object on ground, shovel is cut around the axial rotation of big arm back segment, also can be to ground operations such as the side of certain angle and the manipulating object on the ceiling are implemented to excavate, shovel is cut being arranged.
For realizing the foregoing invention scheme, the hydraulic excavator for mine organic frame has revolution to support above the frame; The fixation side that revolution is supported is connected on the frame, and there is casing the rotating side top that revolution is supported, and horizontal axis is arranged on the casing; The front end that horizontal axis stretches out casing is connected with the commentaries on classics case, and the drive unit of horizontal axis is arranged on the casing, changes case and is hinged with by the hinged successively equipment that forms of big arm, forearm and scraper bowl; The big arm lower end of equipment is hinged on changes on the case, and big arm and forearm are respectively to connect to form by forward and backward two sections, is connected with rotary connecting device respectively between forward and backward two sections of big arm and forearm; Rotary connecting device has central siphon that is connected in leading portion and the axle core that is connected in back segment, and central siphon is enclosed within outside the core, and rotary connecting device is connected with drive unit; Change between case and the big arm back segment and be hinged with big arm hydraulic cylinder; Be hinged with little arm hydraulic cylinder between the leading portion of big arm and the back segment of forearm, be hinged with the scraper bowl hydraulic cylinder between the leading portion of forearm and the scraper bowl, there is running gear the frame below.
Equipment of the present invention is hinged on that horizontal axis stretches out on the commentaries on classics case of casing front end on the casing; Horizontal axis on the casing is connected with the horizontal axis drive unit; The horizontal axis driver can drive equipment and rotate around horizontal axis, and there is certain angle on the edge, front that makes scraper bowl with the ground of level; Big arm and forearm all are to connect to form by forward and backward two sections; Be connected with a central siphon and an axle core between the front and rear sections respectively, central siphon and the drive unit of axle between the core can drive leading portion and rotate around the axle of back segment, and there is certain angle on the edge, front that makes scraper bowl with the ground of level; Equipment rotates around the axle of back segment around the leading portion of horizontal axis rotation and big arm, forearm; There is bigger angle on the edge, front that can make scraper bowl with the ground of level, and through design, there is the angle of 180 degree on the edge, front that can make scraper bowl and the ground of level; Can be to operations such as the side of certain angle and ceiling are implemented to excavate, shovel is cut being arranged with ground; When using, can not only satisfy, also can in the tunnel, split nation and remove the operation on top operation such as remove the ground stock and in the tunnel, undercut in the down-hole, mine.
Below in conjunction with accompanying drawing, the present invention is done explanation further.
Description of drawings
Fig. 1 is that the master of a kind of hydraulic excavator for mine of proposing according to invention scheme of the present invention looks sketch map;
Fig. 2 is the schematic top plan view of Fig. 1;
Fig. 3 is that sketch map cuts open in I place office among Fig. 1;
Fig. 4 is the A-A section partial schematic diagram of Fig. 3;
Fig. 5 is that sketch map cuts open in II place office among Fig. 1;
Fig. 6 is that sketch map cuts open in III place office among Fig. 1;
Fig. 7 is the B-B generalized section of Fig. 5;
Fig. 8, Fig. 9 be among Fig. 5 between big arm front and rear sections the office of cam-type central siphon and axle core drive unit cut open sketch map;
Figure 10 is that the drive unit of horizontal axis is that sketch map cuts open in I place office among Fig. 1 of motor reducer or hydraulic motor;
Figure 11 is that the horizontal axis drive unit is that sketch map cuts open in I place office among Fig. 1 of cam-type drive unit;
Figure 12 is the C-C generalized section of Figure 11;
Figure 13 ~ Figure 15 is that sketch map cuts open in the master office of looking of the wheeled horizontal axis drive unit of Figure 11 convexity;
Figure 16 is that the drive unit of central siphon and axle core is that enlarged diagram cuts open in II place office among Fig. 1 of motor reducer or hydraulic motor between big arm front and rear sections;
Figure 17 is that the drive unit of central siphon and axle core is that enlarged diagram cuts open in III place office among Fig. 1 of motor reducer or hydraulic motor between the forearm front and rear sections;
Figure 18 is that the running gear of frame below is to look sketch map through the master that hydraulic cylinder is connected with the hydraulic excavator for mine of wheel;
Figure 19 is that the running gear of frame below is that the master of the hydraulic crawler excavator of cterpillar drive looks sketch map.
The specific embodiment
Among Fig. 1 ~ Fig. 9, hydraulic excavator for mine organic frame 1 has revolution to support 2 above the frame; The fixation side that revolution is supported is connected on the frame, and there is casing 3 the rotating side top that revolution is supported, and horizontal axis 4 is arranged on the casing; The front end that horizontal axis stretches out casing is connected with changes case 5, changes case and is hinged with by big arm 6, forearm 7 and the hinged successively equipment that forms of scraper bowl 8, and the drive unit of horizontal axis is arranged on the casing; The drive unit of horizontal axis has slideway vertical with horizontal axis on casing 9, and having on the slideway to have the gear 11 that is meshed with tooth bar along the tooth bar 10 of slideway slip on the horizontal axis; Have the horizontal axis parallel with slideway to drive hydraulic cylinder 12 on the casing, horizontal axis drives the piston rod front end of hydraulic cylinder and an end of tooth bar is connected with connecting rod 13, and the big arm lower end of equipment is hinged on changes on the case; Big arm and forearm are respectively to connect to form by forward and backward two section 14,15 and 16,17, are connected with rotary connecting device 18,19 respectively between forward and backward two sections of big arm and forearm, and rotary connecting device has central siphon 20 that is connected in leading portion and the axle core 21 that is connected in back segment; Central siphon is enclosed within outside the core; Rotary connecting device is connected with the cam-type drive unit, and the axle core of cam-type drive unit is a pipe axle core, on the pipe axle core tube wall axial strip hole 22 is arranged; Threaded hole 23 is arranged on the central siphon wall; Back segment at big arm and forearm is fixed with big arm driving hydraulic cylinder 24 and forearm driving hydraulic cylinder 25 respectively, and the piston rod 26,27 that big arm and forearm drive hydraulic cylinder is inserted in corresponding pipe axle in-core respectively, and the axial strip hole and the interior radial peg 28 of the threaded hole on the central siphon wall that are inserted on the pipe axle core tube wall are arranged on the piston rod; Change between case and the big arm back segment and be hinged with big arm hydraulic cylinder 29; Be hinged with forearm hydraulic cylinder 30 between the leading portion of big arm and the back segment of forearm, be hinged with scraper bowl hydraulic cylinder 31 between the leading portion of forearm and the scraper bowl, there is slide type running gear 33 the frame below.
When the piston of above-mentioned big arm driving hydraulic cylinder and forearm driving hydraulic cylinder is flexible; Radial peg on the piston rod can endwisely slip in the axial strip hole on the pipe axle core tube wall; When sliding vertically in the axial strip hole of radial peg on pipe axle core tube wall; Be inserted in radial peg on the piston rod of threaded hole on the central siphon wall and can promote central siphon and rotate, promptly promote leading portion and rotate.Radial peg in the threaded hole of being inserted in is arranged on the piston rod of this drive unit, and threaded hole is equivalent to cam curve, and radial peg is equivalent to the cam connector, can rotate by drive shaft tube during the piston rod rectilinear motion, and be the equal of cam.
It is the gear rack actuating device of Driven by Hydraulic Cylinder that the drive unit of going up horizontal axis on the square box is supported in above-mentioned hydraulic excavator for mine revolution.It also can be motor reducer or hydraulic motor that the drive unit of going up horizontal axis on the square box is supported in the hydraulic excavator for mine revolution, also can be the cam-type drive unit.
Among Figure 10, the hydraulic excavator for mine revolution is supported to go up on the square box has motor reducer or hydraulic motor 34, and motor reducer or hydraulic motor output shaft link to each other with horizontal axis.
Among Figure 11 ~ Figure 15, it is the cam-type drive unit that the drive unit of going up horizontal axis on the square box is supported in the hydraulic excavator for mine revolution.Identical with the connection between above-mentioned big arm and forearm forward and backward two sections with the cam-type drive unit; Horizontal axis on the casing 35 is the central siphon 36 and pipe axle core 37 that is nested together; The front end that central siphon stretches out casing is connected on the commentaries on classics case 38, and pipe axle core is connected on the casing, on the pipe axle core tube wall axial strip hole 39 is arranged; Threaded hole 40 is arranged on the central siphon wall; Hydraulic cylinder 41 is arranged on the casing, and the piston rod 42 of hydraulic cylinder is inserted in pipe axle in-core, and the axial strip hole and the interior radial peg 43 of the threaded hole on the central siphon wall that are inserted on the pipe axle core tube wall are arranged on the piston rod.
Between central siphon between forward and backward two sections of above-mentioned big arm and forearm and the axle core cam-type drive unit is arranged.Between central siphon between forward and backward two sections of big arm and forearm and axle core also can be motor reducer or hydraulic motor.
Among Figure 16, the leading portion of big arm has motor reducer or hydraulic motor 44, and motor reducer or hydraulic motor output shaft link to each other with the axle core that is connected in big arm back segment.
Among Figure 17, the leading portion of forearm has motor reducer or hydraulic motor 45, and motor reducer or hydraulic motor output shaft link to each other with the axle core that is connected in the forearm back segment.
Running gear below the above-mentioned hydraulic excavator for mine frame is a slide plate, when moving, needs use in addition draw-gear, and hydraulic excavator for mine is required great effort when mobile.
In order to move easily, can be at frame positioned beneath wheel.
Among Figure 18, it can be rail wheel that there are wheel 46, wheel in the frame of hydraulic excavator for mine below, is connected with hydraulic cylinder 47 between wheel and the frame.During use, regain wheel with hydraulic cylinder, let frame drop on operation on the ground, stretch out wheel when mobile, wheel drops on the ground or drops on the track, has the hydraulic excavating locomotive of wheel to push away, draw walking on the ground or in orbit at an easy rate.
Above-mentioned hydraulic excavator for mine can not be walked certainly, in order to walk certainly, below the frame self-walking apparatus can be arranged, and self-walking apparatus has the drive unit of wheel and wheel.Self-walking apparatus can be the crawler type self-walking apparatus.
Among Figure 19, there is crawler type self-walking apparatus 48 frame of hydraulic excavating locomotive below.
When above-mentioned hydraulic excavator for mine used under mine, hydraulic test can be with the hydraulic power source under the mine.Also Hydraulic Station can be arranged on frame.
Among Fig. 1, Fig. 2, Figure 18, Figure 19, Hydraulic Station 49 is arranged on the frame of hydraulic excavator for mine.