The crane installation for drilling solid rock

 

(57) Abstract:

The invention relates to mining, in particular to the manipulators of drilling rigs engaged in drilling hard rocks when conducting mining. The crane installation for drilling solid rock that contains a frame, a shaft pivotally connected through vertical and horizontal axes with the frame, a lifting cylinder mounted between the frame and the boom, a rotary cylinder mounted between the frame and the boom, a support for the feed beams pivotally connected with the other end of the boom through the horizontal and vertical axes, the tilt cylinder mounted between support and arrow, and traverse the rotary cylinder mounted between support and arrow. The rotary cylinder is mounted at an angle relative to the longitudinal centerline of the boom and rejected from the bed to the end of the boom vertically down so that when the boom is in the middle of the upper and lower angles of elevation of the rotary cylinder is located essentially horizontally. The invention will increase the drilling efficiency due to more precise aiming arrows at the point of drilling and eliminate unproductive time spent on manipulation arrow is tx2">

In the European patent N 0140873, CL E 21 C 11/02, 1985, revealed the crane installation for drilling solid rock that contains a frame, a shaft pivotally connected through vertical and horizontal axes with the frame, a lifting cylinder mounted between the frame and the boom for vertical lifting and lowering of the boom, a rotary cylinder mounted between the frame and the boom for rotation to the side of the boom relative to the frame, a support for the feed beams pivotally connected with the other end of the boom through the horizontal and vertical axes, the tilt cylinder mounted between support and arrow, for rotation of the support relative to the boom about the horizontal axis and traverse the rotary cylinder mounted between a shaft and a bearing for rotation of the support relative to the boom about the vertical axis.

The problem with the arrows installations for drilling hard rocks is that when the feed beam deflect in the vertical direction, it simultaneously deflected sideways from the direct position in one direction or another, and the end of the boom is moved so that it describes an arc. More than moving the boom up or down, the more simultaneous lateral run-out. This is due to the Sha the technical means in practice is impossible. A disadvantage of the known solution is that the angles of deflection of the shafts up are not symmetric: for practical reasons, the deflection angle down less than the deflection angle upwards. Therefore, the lateral deviation in both the angular positions of the boom will be felt much more and will create a significant disadvantage of using the arrows. When the arrow is given the opportunity of turning to extreme lateral angles when in the upper angular position of the articulation cylinders can be moved in a position in which the arrow will no longer be able to go back and stay in place.

The technical result of the present invention is to provide a manipulator unit for drilling solid rock, eliminating the above disadvantages and provides the same to the extent possible, turning sideways in the upper and lower vertical positions of the boom.

This technical result is achieved by the fact that the crane installation for drilling solid rock comprises a frame, a shaft pivotally connected through vertical and horizontal axes with the frame, a lifting cylinder mounted between the frame and the boom for vertical lifting and lowering streaper to the feed beam, associated with the other end of the boom through the horizontal and vertical axes, the tilt cylinder mounted between support and arrow, to rotate the supports relative to the boom about the horizontal axis and traverse the rotary cylinder mounted between the boom and the support to rotate the support relative to the boom about the vertical axis. According to the invention the rotary cylinder between the frame and the boom is mounted at an angle relative to the longitudinal centerline of the boom so that the longitudinal axial line of the rotary cylinder has a vertical slope down from the bed towards the end of the boom relative to the direction of the longitudinal centerline of the boom, and the centers of the horizontal joints of the bases of the rotary cylinder and boom, by being United to each other on the basis of the arrow when the arrow is facing exactly forward against the frame.

The basic idea of the invention is that the rotary cylinder fixed vertically inclined relative to the longitudinal centerline of the boom so that when the rotary cylinder in the horizontal plane, the arrow is in the middle of the range of vertical motion, and consequently the deviation of the firing positions due to the selected position of the rotary cylinder. Accordingly, traverse the rotary cylinder is required to rotate the feed beam, fixed at an angle to the longitudinal centerline of the boom, resulting in the rotation as the feed beam and the boom is evident in equal changes of angle under the influence of the angle of vertical deflection.

The advantage of the invention lies in the fact that change of direction and lateral deviations as the boom and the feeding beam with vertical rotation are essentially the same relative to the horizontal plane both above and below it, because the angles between the longitudinal centerlines of the shafts and the rotary cylinder and, respectively, traverse the rotary cylinder compensated for vertical deviations arrows.

It is advisable that the angle between the longitudinal axial line of the rotary cylinder and the boom in the vertical plane was equal essentially to half the difference between the top elevation and bottom elevation angle of the boom relative to the horizontal plane.

It is possible to traverse the rotary cylinder between the boom and the support was similarly fixed relative to the longitudinal centerline of the boom angle and vertically deflected from sanatoga cylinder and the boom in the vertical plane may be equal to half the difference between the rotation angles up and down relative to the support and arrows.

It is desirable that the angles of the rotary cylinder and traverse the rotary cylinder relative to the longitudinal centerline of the boom were equal.

The invention will be described in more detail with reference to the accompanying drawings, in which:

Fig. 1 depicts a schematic top view of the manipulator according to the invention,

Fig. 2 is a schematic side view of the manipulator according to the invention,

Fig. 3 - schematic geometry of the boom manipulator, according to the invention.

Figure 1 schematically shows a portion of the base 1 arrow 2 arm installation for drilling solid rock, pivotally connected with the frame 1 by means of the vertical and horizontal axis 3 axis 4. The lifting cylinder 5, not shown in this figure, hinged at both ends between the frame 1 and the shaft 2 and, as shown in figure 1, is rejected down from the boom 2 in the direction of the frame 1. Between the boom 2 and the frame 1 is rotatable cylinder 6 pinned ends with the frame 1 and the shaft 2. Both cylinders 5 and 6) are fixed so that they can be rotated relative to the base 1 and arrow 2 in vertical and horizontal planes. Such swivel, in total and essentially feel good izvestnomu arrows 2. Bearing 7 pivotally connected to the end of the boom 2 by means of the vertical axis 8 and the horizontal axis 9. The cylinder 10 tilt hinged at both ends between the boom 2 and the support 7 for the vertical supports 7 and with it the feed beam relative to the boom 2. Traverse the rotary cylinder 11 hinged ends between the boom 2 and the support 7 to rotate the support 7 about a vertical axis 8, regardless of its vertical angle.

From figure 2 it is seen that the rotary cylinder 6 and traverse the rotary cylinder 11 is inclined relative to the longitudinal centerline of the boom 2 and, moreover, rejected down relative to the end of the boom 2. When the boom 2 in the horizontal plane vertical angular displacement of the rotary cylinder 6, as shown in more detail in figure 2, is preferably half the difference between the largest and smallest vertical angles of deflection of the boom 2. Accordingly, the vertical angle between the longitudinal axial line of traverse of the rotary cylinder 11 and the arrow 2 equal to half the difference between the vertical marginal angles of deflection of the support 7. Usually the angles and equal, but may be unequal.

Figure 3 schematically shows the relationship is the turn of the boom when the boom 2 in a horizontal plane, line L2b indicates the direction of the longitudinal centerline of the boom when the boom 2 is raised vertically in the most remote upper position, and the line L2c indicates the longitudinal centerline of the boom when the boom 2 is displaced vertically in the most remote possible lower position. Typically, the elevation angle of the boom 2 is greater than the angle down, and this is illustrated by specifying the values of the 50ofor the top elevation 1 and 30ofor lower elevation 2. To obtain equal lateral deviations of the ends of the arrows 2 regardless of the angle of lateral displacement in the extreme positions both at the top and bottom corners of the lifting action of the rotary cylinder 6 must be symmetric. This is achieved by the fact that the angle between the longitudinal axial line L6 of the rotary cylinder 6 and the longitudinal centerline of the boom 2 is chosen large enough so that the rotary cylinder 6 remained mostly in a horizontal position, while the arrow 2 is shifted to the middle of the extreme limits of the L2b and L2c, i.e. to the line L2b. Therefore, when you need exactly the same deviations up and down, the value of the angle is equal to half the difference between the top angle 1 and the lower elevation angle of 2, i.e. in the case shown in the figure, the lower position of the rotary cylinder 6 will be under it because of the connection between the boom 2 and the frame will match the value of the angle , i.e., 10oin the case shown in the figure. Accordingly, when the horizontal position of the rotary cylinder 6, i.e., parallel lines L2a, the resulting movement of the boom upwards is equal to the value of the angle , i.e., the arrow parallel lines L2d. The slope of the traverse of the rotary cylinder 11 support 7 carrying the feed beam is determined in the same way and in the simplest realization of equal . As is evident from the figures, the articulation of the rotary cylinder and boom, essentially centered relative to base 1, when the bolt 2 is facing exactly forward against the frame 1. Therefore, the centers of the horizontal joints on the basis of the arrows in this situation, essentially, are combined with each other, although small structural bias may exist. Similarly, when it is therefore necessary to rotate the feed beam as accurately as possible, its size or its horizontal articulation tailored to ensure that the centers of these horizontal joints are essentially United. As expected, when the bolt is rotated sideways, the rotation centers of the joints is accompanied by a certain deviation from each other from their original position, which leads to a small the Oia, and to move the boom, which in spite of this, essentially symmetrical above and below the middle of the vertical angle of lifting.

1. The crane installation for drilling solid rock that contains a frame, a shaft pivotally connected through vertical and horizontal axes with the frame, a lifting cylinder mounted between the frame and the boom for vertical lifting and lowering of the boom, a rotary cylinder mounted between the frame and the boom for rotation to the side of the boom relative to the frame, a support for the feed beams pivotally connected with the other end of the boom through the horizontal and vertical axes, the tilt cylinder mounted between support and arrow, to rotate the supports relative to the boom about the horizontal axis and traverse the rotary cylinder mounted between the boom and the arm, for rotation of the support relative to the boom about the vertical axis, characterized in that the rotary cylinder between the frame and the boom is mounted at an angle relative to the longitudinal centerline of the boom so that the longitudinal axial line of the rotary cylinder has a vertical slope down from the bed towards the end of the boom relative to the direction proudest, combined with each other on the basis of the arrow when the arrow is facing exactly forward against the frame.

2. The device according to p. 2, characterized in that the angle between the longitudinal axial line of the rotary cylinder and the boom in the vertical plane is equal essentially to half the difference between the top elevation and bottom elevation angle of the boom relative to the horizontal plane.

3. The device under item 1 or 2, characterized in that the traverse rotary cylinder between the boom and support in this way is fixed relative to the longitudinal centerline of the boom angle and vertically deflected from the bed down towards the end of the boom.

4. The device according to p. 3, characterized in that the angle between the longitudinal axial lines traverse the rotary cylinder and the boom in the vertical plane equal to half the difference between the rotation angles up and down relative to the support and arrows.

5. The device under item 3 or 4, characterized in that the angles of the rotary cylinder and traverse the rotary cylinder relative to the longitudinal centerline of the boom are equal.

 

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