Machine with an endless flexible working body

 

(57) Abstract:

The invention relates to the field of production and processing of various solid materials by cutting, for example stone industry, and more specifically to machines for quarrying and stone processing using endless flexible working body. The objective of the invention is to increase the durability of the working body, reducing energy intensity and the share of waste finished product. Machine with endless flexible working body for solid processing includes at least one endless flexible working body, adjustably tightened by means of a protracted guide vane, which is movably mounted on the frame of the machine, the drive of the feed per cutting, the transfer device and the movement of the endless flexible working body kinematically associated with the main drive of the machine, a frame and a table for mounting the workpiece. Protracted the guide device includes at least three sectors that are installed in areas of bending the trajectories of the endless flexible working body on the arc of a circle, connecting the straight sections endless flexible working body, mounted for rotation around their axes, the guide roller is in the feed direction for cutting sector is oppopysleesia, and another near the harvesting sector, between the workpiece and the guide roller installed transmission device movement, which is movably fixed endless flexible working body. The machine table may have a mechanism for effecting rotation of the workpiece in the plane of the cut. Between the workpiece and guiding device can be mounted roller, shifted relative to the direction of movement of the endless flexible working body. The circular grooves of the guide rollers may have a layer of anti-friction coatings. The transmission device can be fixed hinge and can samoustraniajutsia in the direction of tension of the endless flexible working body. The transmission device can have a device for creating a longitudinal ultrasonic vibrations endless flexible working body. Oppopysleesia links may also have a sector that is not closest to the workpiece. 6 C. p. F.-ly, 5 Il.

The invention relates to the field of production and processing of various solid materials by cutting, for example stone industry, and more specifically to machines for quarrying and stone processing using endless flexible working body.

Currently what im working body, equipped almazsoderzhashchikh the others.

Known, for example, the machine comprising a vertical guides connected at the top by a beam, on which is placed the calipers with the travel drive installed on the calipers pulleys, one of which is connected to the motor covered endless cutting body in the form of a rope (U.S. Patent N 2994314, CL 125-21, 1961 ).

Also known installation for cable cutting stone with vertical guides connected at the top by a beam, on which is placed the calipers with the travel drive installed on the calipers pulleys, one of which is connected to the motor covered endless cutting body in the form of a rope (ed. St. SU 1065218 And CL 28 D 1/08; 07.01.84. ; Bull. 1).

In all known machines driven flexible working body is the drive pulley.

The disadvantages of these machines are creating significant pre-tensioning a flexible endless working body to ensure the transmission of motion corresponding capacity and the inevitable bending and subsequent roshiba busy flexible working body on the drive pulleys of the machine.

The value of the effort will prefix oricheskogo process, and stresses caused by the action of these efforts, inversely proportional to the cross-sectional area of the bearing part of the endless flexible working body of the machine. On the other hand, stresses resulting from bending of the flexible endless working body on the drive pulley, is proportional to the ratio of the diameter of the cross-section of the bearing part of the working body to the diameters of the drive pulleys. The task is complicated by the fact that decreasing values of Flexural stresses by increasing the diameters of the drive pulleys causes increased center distance transmission, and the process is necessary to increase the pre-tension of the endless flexible working body. A significant part of the strength of the resources supporting part of the infinite working body is consumed by the resistance of the preload and the bend on the drive pulleys.

If you consider that when working with diamond others cutting speed reaches values up to 30-40 m/s, and the diameter of the driving pulley of the existing machines is 1.5-2 m to compensate for the centrifugal forces necessary to provide additional tension on flexible working body.

Ineffective ispackage endless working body, what is the reason of increased internal diameter diamond Perlin, attached to it. Therefore, reducing the thickness of the diamond layer on the others with the same outer diameter, which reduces the durability of the endless work of the authority, or provision of adequate durability increases width of cut, which leads to an increase in the intensity of the process.

Schemes of work known machines assume almost the same angles at the inlet and outlet flexible endless working body in the cutting zone and out of it. Given that the cutting process occurs at relatively high speeds (above 30 m/s), the diamond perlini set periodically on a supporting part of the endless flexible working body, undergo large shock loads when you log in the cutting zone, which negatively affects the durability of the diamond grains.

All of the above is the cause unreasonably large width of cut when using these machines, reducing the durability of a relatively expensive working body, increase energy consumption in the process and increasing the share of the waste relative to the finished product.

The present invention is the task of creating a product implementation which obviates the above disadvantages.

This problem is solved by creating a machine that includes at least one endless flexible working body, adjustably tightened by means of a protracted guide vane, which is movably mounted on the frame of the machine, the drive of the feed per cutting, the transfer device and the movement of the endless flexible working body kinematically associated with the main drive of the machine, a frame and a table for mounting the workpiece, characterized in that the lengthy guide apparatus consists of at least three sectors that are installed in areas of bending the trajectories of the endless flexible working body on the arc of a circle, connecting the straight sections endless flexible working body, fixed for rotation around their axes of the guide rollers, provided with annular grooves, and one of the closest from procurement sectors, at least one of the relations with the nearest in the feed direction for cutting sector is oppopysleesia, and the other near the harvesting sector, between the workpiece and the guide roller installed transmission device movement, in which are mounted elastically flexible endless Anastasio of the invention (for a detailed description of the invention contained in the patent of Russian Federation N 2000119810/28), eliminates the appearance of Flexural stresses in the transmission of motion, and eliminates the requirement for the pre-tensioning a flexible endless working body for the transmission of motion. Therefore, a flexible endless working body is under the operating voltage only on the land area of the cutting device motion. This allows to significantly reduce the diameter of the bearing part of the endless flexible working body and thereby to achieve as increasing the thickness of the diamond layer on the others, and reducing the external diameter Perlin, which will increase the durability of the flexible working of the body and to reduce the energy intensity of the process.

Given that the endless flexible working body works at high speeds (>30 m/s), using the transmission device motion proposed construction permits, regardless of the magnitude of the velocity, to ensure the transmission of drive power.

The decrease in tension of the endless flexible working body outside the workpiece - transfer device and the movement, allows the drive pulleys to replace the guide rollers installed along the arc of a circle. When this stress SOS and circumference, on which they are installed. This reduces the span of flexible working body of approximately the diameter of the alleged pulleys and implement process at low tension.

Giving one of the closest to the harvesting sector oppopysleesia communication, for example in the feed direction for cutting, makes it easy to install flexible endless working body of a certain length in the annular grooves of the rollers of the guide vane. When setting means of setting a certain toughness oppopysleesia communication necessary for the implementation of the technological process, it is possible to provide a small angle (less than /12) sign-in area of the cutting endless flexible working body. While the exit angle of flexible working body from the cutting zone will have more entrance angle and its value will depend on the efforts of feed per cutting. The power supply to the cutting by the cutting zone will be distributed unevenly. The pressure flexible working body on the workpiece is less than at the entrance to the cutting zone and continuously changing depending on the angle of exit. This will ensure smooth operation of flexible working body and the entire machine and eliminate the possibility of shock loads on the diamond bone, supplied for cooling the diamond Perlino, and thereby increase the durability of flexible working body.

For the final cutting of the workpiece table of the machine can be equipped with a mechanism for implementation of the angular feed by turning the workpiece to the transfer device and the movement in the plane of the cut.

For uniform wear diamond Perlino and increase the durability endless flexible working body between the workpiece and guiding device has at least one roller, shifted relative to the plane of the endless flexible working body. The resultant of the friction forces which act on the cylindrical surface of flexible working body from the side wall of the annular groove of the roller, creates a torque that allows twisting it about its geometric axis. The offset roller can adjust the speed of winding a flexible endless working body.

Can the annular grooves of the guide rollers to provide a layer of anti-friction coatings (e.g., plastic EPVD 80), which will significantly increase the durability and reduce the abrasion of the diamond grains.

the Oia endless flexible working body, you can reduce the angle of its bend and to improve the functioning of the device motion.

Given that the ultrasonic vibrations have a positive effect on the cutting process and the design of the machine allows you to create them, can the transmission device movement to provide apparatus for creating a longitudinal ultrasonic vibrations of the working body directly in the cutting zone.

Can oppopysleesia communication to equip one of the sectors that are not in the immediate vicinity of the workpiece, which makes sense when processing materials with low strength.

To ensure uniform operation of the tool on the machine between the guide vanes and the workpiece is set, at least one roller, shifted relative to the plane in which is located a flexible endless working body to twist it about its geometric axis.

You can use removable antifrictional layer in the roller feed mechanism for cutting.

To reduce the tension of the endless flexible working body out of the cutting zone it is convenient to movably secure the devices in the transmission of motion from both sides of the processed CJSC allows so to reduce the stiffness of the flexible endless working body, that guide apparatus provided with rollers installed only on the trajectory bending flexible working body.

For a better understanding of the present invention provides a schematic image of the machine.

Fig. 1 schematically depicts a machine with endless flexible working body according to the invention.

Fig. 2 schematically depicts a table of the machine when performing angular feed.

Fig. 3 schematically shows the machine with the guide roller installed only on the bending of the trajectory flexible working body.

Fig. 4 schematically depicts the proposed machine with three sectors.

The proposed machine with endless flexible working body includes a U-shaped frame 5 (Fig. 1), which is movably fixed sectors 2,3,4,4 guide vanes. Using the actuator feed per cutting (drawings not included) these sectors get moving in the vertical direction. Sector 2 sector 3 is connected by means oppopysleesia connection 7, the stiffness of which can be controlled. On the sectors along the arc of a circle of fixed rollers 6, which freely rotate around their axes and serve as guides for the flexible endless labrouste motion 8, which is attached to sector 4. The transmission device motion is kinematically connected with the main drive of the machine (in the drawings is not given) and informs the cutting movement of flexible working body 1. The roller 12 is mounted on the sector 2, the offset direction of the endless flexible working body 1, and can spin it about its geometric axis. In the middle of the U-shaped frame 5, perpendicular to its plane, installed rails on which can move the table 9, on which is fixed the workpiece 10. Over the workpiece 10 is installed, the device 11 for supplying coolant to the cutting zone.

In Fig. 2 schematically shows a table 9 of the machine, which by means of the lifting mechanism performs the angular workpiece 10 on the cutting.

In Fig. 3 shows a schematic depiction of the machine, which is equipped with two devices transmit motion 8 and 12, one of which is installed on sector 2 having oppopysleesia communication, and can be driven. Guide rollers 6 are installed only on the trajectory bending endless flexible working body 1. In the diagram, and the roller 13, which provides the rotation of the flexible working of the body relative to its geometric basis of the joint, and guide rollers 6 are installed only on the trajectory bending endless flexible working body 1.

The machine works as follows.

Turns on the system coolant supply. Using the main drive of the machine through the transfer device and the movement of the endless flexible working body is reported to the labour movement. The couplant is supplied to the cutting and after reaching contact endless working body with the material to be processed starts the cutting process.

The present invention can be used in the extraction and processing of various stone materials.

1. Machine with endless flexible working body for processing of solid materials, comprising at least one endless flexible working body, adjustably tightened by means of a protracted guide vane, which is movably mounted on the frame of the machine, the drive of the feed per cutting, the transfer device and the movement of the endless flexible working body kinematically associated with the main drive of the machine, a frame and a table for mounting the workpiece, characterized in that the lengthy guide apparatus consists of at least three sectors that are installed on sections of the bending of the trajectory CSOs endless working body, fixed for rotation around their axes of the guide rollers, provided with annular grooves, and one of the closest from procurement sectors, at least one of the relations with the nearest in the feed direction for cutting sector is oppopysleesia, and the other near the harvesting sector between the workpiece and the guide roller installed transmission device movement, which is movably fixed endless flexible working body.

2. The machine under item 1, characterized in that the table of the machine is provided with a mechanism for rotating the workpiece in the plane of the cut.

3. The machine under item 1 or 2, characterized in that between the workpiece and guiding device has at least one roller, shifted relative to the direction of movement of the endless flexible working body.

4. Machine according to any one of paragraphs. 1-3, characterized in that the annular grooves of the guide rollers provided with a layer of anti-friction coatings.

5. Machine according to any one of paragraphs. 1-4, characterized in that the transfer device and the movement of the fixed hinge and can samoustraniajutsia in the direction of tension of the endless flexible working body.

6. Machine according to any one of paragraphs.the lateral oscillations of the endless flexible working body.

7. Machine according to any one of paragraphs. 1-6, characterized in that oppopysleesia communication has a sector that is not closest to the workpiece.

 

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