Multi-rope wire sawing machine with sawing ropes capable of being tensioned in self-adaptive mode

Abstract

The invention provides a multi-rope wire sawing machine with saw ropes capable of being tensioned in a self-adaptive mode, the multi-rope wire sawing machine comprises a rack, a cutting frame, a lifting device, a driving device and a driven device, the driven device comprises a fixed shaft, a hydraulic push rod, a sliding sleeve and a driven wheel, and the fixed shaft is provided with a hydraulic conveying cavity penetrating through the fixed shaft in the axial direction of the fixed shaft; the two ends of the hydraulic conveying cavity are communicated with a pipeline of a hydraulic conveying system, mounting holes communicated with the hydraulic conveying cavity are formed in the peripheral face of the fixing shaft in the axial direction at intervals, openings of the mounting holes face the side away from the driving wheel, and the sliding sleeve is arranged on the outer side of the fixing shaft in a sleeving mode through a hydraulic push rod corresponding to the mounting holes. And the driven wheel is sleeved on the sliding sleeve in a self-rotating manner. Self-adaptive tensioning of the saw ropes is achieved by introducing a hydraulic system, the overall weight of equipment is remarkably reduced, it is guaranteed that each saw rope can maintain consistent and appropriate tensioning force in the cutting process, and therefore the cutting quality and efficiency are improved.

Description

Technical Field

[0001] The invention relates to the field of wire saw cutting machines, and in particular to a multi-wire saw machine capable of adaptively tensioning a wire rope. Background Art

[0002] A multi-group wire saw machine is used for splitting large stone slabs. A multi-group wire saw machine can install several to hundreds of wire saws side by side, and can split several to hundreds of large stone slabs at a time. In order to achieve a better splitting effect when each wire saw splits the stone slab, it is required that the tension of each wire saw is consistent when working. Because the lengths of each wire saw are difficult to be consistent, each wire saw needs to be equipped with an independent tensioning wheel to adjust the tension. However, existing stone cutting machines generally include a driving wheel, a driven wheel and a tensioning wheel, and the wire saw for cutting stone is tensioned by the tensioning wheel. Most of the existing tensioning wheels are arranged at an upper position between the driving wheel and the driven wheel through a tensioning device, which not only causes the cutting part to occupy a large space for installation, but also the increase of the tensioning wheel causes the weight of the equipment to increase significantly, which not only increases the transportation cost, but also increases the difficulty of handling.

[0003] The prior art CN200920019138.0 discloses a two-wheel multi-rope diamond bead saw, which includes five parts: a main motion mechanism, a feeding mechanism, a guide mechanism and a main frame. Feed pallets are installed on both sides of the main frame. The feeding mechanism is installed on the upper end of the main frame, and the feed pallets on both sides are connected to the feeding mechanism; the main motion mechanism includes a main motor and a driving wheel installed on one side of the feed pallet, a telescopic hydraulic cylinder and a tensioning wheel installed on the other side of the feed pallet, the main motor is connected to the driving wheel through a transmission device, and the tensioning wheel is connected to the telescopic hydraulic cylinder. Guide wheels are installed on the feed pallets on both sides, and more than two rope grooves are provided on the driving wheel, the tensioning wheel and the guide wheel, and the bead rope is wound in the rope groove; although this solution does not need to use a tensioning wheel to tension the saw rope, it still has the following problems: 1. In this scheme, the adjustment of the tension force depends on the adjustment of the distance between the driven wheel and the driving wheel by the telescopic hydraulic cylinder. However, the length and degree of wear of each rope saw are different. After working for a long time, the tension force between the rope saws may be inconsistent. This scheme cannot guarantee that each saw rope can obtain the appropriate tension force, which may cause some rope saws to vibrate or break during cutting, thereby affecting the cutting efficiency and quality.

[0004] 2. Since this solution relies on a telescopic hydraulic cylinder to adjust the tension, frequent adjustments may be required in actual operation to ensure that all rope saws are maintained in a suitable tension state. Such frequent adjustments not only increase the complexity of operation, but may also cause accelerated wear of the hydraulic system, increase maintenance costs and failure rates. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a multi-rope saw machine with adaptive tensioning of the saw rope. The adaptive tensioning of the saw rope is achieved by introducing a hydraulic system, which not only significantly reduces the overall weight of the equipment, but also ensures that each saw rope can maintain a consistent and appropriate tension during the cutting process, thereby improving the cutting quality and efficiency, while reducing the need and frequency of manual adjustment.

[0006] The technical solution adopted by the present invention to solve its technical problem is: Provided is a multi-rope saw machine with a saw rope capable of adaptive tensioning, comprising: a frame, a cutting frame, a lifting device, a driving device and a driven device, wherein the cutting frame is arranged on the frame through the lifting device, the driving device and the driven device are correspondingly arranged at two ends of the cutting frame, and the saw rope is correspondingly sleeved on a driving wheel of the driving device and a driven wheel of the driven device; The driven device includes a fixed shaft, a hydraulic push rod, a sliding sleeve and a driven wheel. The fixed shaft is provided with at least one hydraulic delivery chamber penetrating the fixed shaft along its axial direction. Both ends of the hydraulic delivery chamber are connected with the pipeline of the hydraulic delivery system. The outer peripheral surface of the fixed shaft is provided with at least one mounting hole connected with the hydraulic delivery chamber along its axial direction. The opening of the mounting hole is arranged toward the side away from the driving wheel. The sliding sleeve is sleeved on the outer side of the fixed shaft corresponding to the mounting hole. The driven wheel is rotatably sleeved on the sliding sleeve. One end of the hydraulic push rod is sealed and arranged in the mounting hole, and the other end is connected with the sliding assembly. The hydraulic push rod can drive the sliding sleeve to move along the axial direction of the mounting hole under the control of the hydraulic system.

[0007] It should be noted that the components of the frame, cutting frame, lifting device, driving device and driven device are the basic structure of the existing rope saw machine; the driven device includes a fixed shaft, a hydraulic push rod, a sliding sleeve and a driven wheel, which are the key to realizing the adaptive tensioning of the saw rope. The fixed shaft is the basic component of the driven device, and a plurality of hydraulic transmission chambers are arranged inside. These chambers are connected to the external hydraulic system for transmitting hydraulic oil. The hydraulic push rod is embedded in the mounting hole on the fixed shaft, one end is sealed and matched, and the other end is connected to the sliding sleeve, which can be extended and retracted under the action of hydraulic pressure, and then push the sliding sleeve to move axially; the sliding sleeve is installed on the outside of the fixed shaft, and can move with the action of the hydraulic push rod, and carry the driven wheel, so that the position of the driven wheel can be adjusted as needed; the driven wheel can be rotatably installed on the sliding sleeve, and can adjust its position under the guidance of the sliding sleeve, while maintaining the same position as the saw In order to ensure good contact with the rope, the driven wheel can be mounted on the sliding sleeve through a bearing to realize self-rotation; in this scheme, the sliding sleeve is controlled to move radially along the fixed axis by a hydraulic push rod, so as to adjust the distance between the driven wheel and the driving wheel. When the saw rope is loose, the hydraulic system increases the pressure to extend the hydraulic push rod, push the sliding sleeve and the driven wheel to move outward, and tighten the saw rope; on the contrary, if the saw rope is too tight, the pressure is reduced to shrink the hydraulic push rod and loosen the saw rope, thereby realizing automatic tensioning of the saw rope, ensuring stability and accuracy during the cutting process, and reducing the need for manual adjustment; and due to the existence of the hydraulic system, each saw rope can maintain a consistent tension. Even if there are slight differences in the length of each saw rope, due to the consistent hydraulic pressure in each mounting hole, the tension of each saw rope can be kept consistent by different extension lengths of the piston rod of the hydraulic push rod.

[0008] Preferably, the cutting frame includes a driving support, a driven support and a fixed beam, the driving support and the driven support are arranged on the corresponding columns of the frame through a lifting device, the driving device and the driven device are respectively arranged on the driving support and the driven support, and the fixed beam is horizontally arranged between the driving support and the driven support, and its two ends are respectively connected and fixed to the inner upper ends of the driving support and the driven support.

[0009] It should be noted that the driving support and the driven support are the core supporting parts of the cutting frame, which are used to install the driving device and the driven device respectively. They are set on the corresponding columns of the frame through the lifting device and can move up and down along the columns. The fixed crossbeam not only enhances the overall rigidity of the cutting frame and prevents unnecessary vibration or deformation during the cutting process, but also provides an installation basis for other auxiliary equipment (such as protective covers, cooling systems, etc.); the cutting frame of this solution adopts a modular design, which is convenient for independent assembly and disassembly of each component, reduces the difficulty of maintenance, and shortens the maintenance time.

[0010] Preferably, the driving device comprises a driving shaft, a driving wheel and a driving motor, the driving wheel is fixedly sleeved on the driving shaft, both ends of the driving shaft are fixed on the driving support through bearing seats, the driving motor is installed on the driving support and is connected to the driving shaft in transmission.

[0011] It should be noted that the drive motor is installed on the drive support and is connected to the drive shaft through an appropriate transmission mechanism (such as gears, belts, etc.) to form a compact power unit. The drive shaft, as the core component of power transmission, connects the drive motor and the drive wheel. The drive motor transmits the rotational torque to the drive wheel through the drive shaft, so that the drive wheel can rotate stably and drive the saw rope to operate; all key components of the drive device of this scheme are integrated in a relatively small space, which not only saves space but also facilitates daily inspection and maintenance; for example, if the drive motor needs to be repaired, it can be operated directly from the drive support without affecting other parts.

[0012] Preferably, both ends of the driven device are fixed to the driven support through a tensioning device, and the distance between the driving wheel and the driven wheel can be adjusted through the tensioning device.

[0013] It should be noted that the tensioning device is used to adjust the distance between the driving wheel and the driven wheel, which not only enables the rope saw machine to be suitable for the installation of saw ropes of different lengths, but also can preliminarily control the tension of the saw rope, providing a basis for fine adjustment of the hydraulic system.

[0014] Preferably, the tensioning device includes a tensioning cylinder, a mounting seat and a slide rail, the slide rail is horizontally arranged on the driven support, the mounting seat is movably arranged on the slide rail, the tensioning cylinder is horizontally arranged on the driven support, and one end of the tensioning cylinder is fixed on the driven support, and the other end is connected to the mounting seat, and the tensioning cylinder can drive the mounting seat to move axially along the slide rail through telescopic movement, and the two ends of the fixed shaft are respectively fixed on the corresponding mounting seats.

[0015] It should be noted that the tensioning cylinder adjusts the position of the mounting seat by extending and retracting, thereby changing the distance between the driving wheel and the driven wheel. The mounting seat carries the driven device (i.e., the fixed shaft, the hydraulic push rod, the sliding sleeve and the driven wheel) and can move axially on the slide rail. The slide rail provides a stable moving path for the mounting seat to ensure that the driven device will not shift or shake during the adjustment process; when the length of the saw rope is much greater than the length between the driving wheel and the driven wheel, the tensioning cylinder extends and pushes the mounting seat to move outward along the slide rail, thereby increasing the distance between the driving wheel and the driven wheel to match the length of the saw rope; conversely, when the length of the saw rope is much less than the length between the driving wheel and the driven wheel, the tensioning cylinder extends and retracts, pulling the mounting seat to move inward along the slide rail, thereby reducing the distance between the driving wheel and the driven wheel, so that the saw rope can be mounted on the driving wheel and the tensioning wheel.

[0016] Preferably, the multi-rope saw machine also includes a guide wheel group, a protective cover, a water supply device and a trolley, the guide wheel group is symmetrically arranged at the lower ends of the corresponding driving support and the driven support corresponding to the driving wheel and the driven wheel, and is located between the driving wheel and the driven wheel, the protective cover is arranged on the cutting frame, the water supply device is arranged on the cutting frame between the driving wheel and the guide wheel, and the trolley is correspondingly arranged directly below the cutting frame and is located between the driving wheel and the guide wheel.

[0017] It should be noted that the guide wheel group can ensure that the saw rope can be effectively guided when entering and leaving the cutting area. The protective cover is installed on the cutting frame, covering the entire cutting area, which can protect the operator from being hurt by the high-speed saw rope. At the same time, it prevents the debris generated during the cutting process from splashing, thereby improving the safety of the working environment. The water supply device supplies cooling water to prevent the saw rope from overheating, reduces the saw rope wear caused by high temperature, and extends the service life of the saw rope. At the same time, the cooling water can also take away the heat and debris generated during the cutting process, thereby improving the cutting quality. The trolley is used to carry the material to be cut, which facilitates the handling and positioning of the material, thereby improving work efficiency and operating convenience.

[0018] Preferably, the protective cover includes a driving cover, a driven cover and a connecting cover, the driving cover and the driven cover are respectively correspondingly arranged on the driving support and the driven support, the connecting cover is respectively arranged on the fixed crossbeam, and its two ends are respectively connected to the driving cover and the driven cover, at least one cooling pipe is arranged on the lower surface of the connecting cover along its axial direction, one end of the cooling pipe is closed, and the other end is connected to the water supply device, and a water spray hole is arranged on it corresponding to the saw rope, and the outlet of the water spray hole is arranged toward the saw rope.

[0019] It should be noted that the connecting shield connects the driving shield and the driven shield into a whole, ensuring that the entire cutting area is effectively covered, reducing the impact of external factors on the cutting process; in addition, the cooling pipe arranged on the lower surface of the connecting shield can be the connecting shield's own reinforcing rod. By using the hollow reinforcing rod as the cooling pipe, not only the cooling water is transported, but also the mechanical strength of the connecting shield is enhanced.

[0020] Preferably, the radial cross-section of the fixed shaft is U-shaped as a whole, and one end of the U-shaped opening of the fixed shaft is arranged toward the side away from the driving wheel, and the upper and lower sides thereof are sliding planes, and the plane between the sliding planes is a hydraulic plane, and the mounting holes are arranged on the hydraulic planes at intervals and are connected with the corresponding hydraulic delivery chambers, and the fixed shaft is also provided with oil filling holes along the axial direction corresponding to the sliding plane, and the sliding plane is provided with lubricating oil grooves and oil outlet holes at intervals corresponding to the sliding sleeve, and the lubricating oil grooves are connected with the oil filling hole through the oil outlet hole.

[0021] It should be noted that the radial cross-section of the fixed shaft is U-shaped as a whole. The U-shaped design not only provides installation space for the hydraulic push rod, but also optimizes the internal structural layout, ensuring that the sliding sleeve will not deviate or shake during movement, thereby enhancing the stability of the system; the sliding plane is located on the upper and lower sides of the fixed shaft (i.e., the two symmetrical planes of the U-shaped structure), providing a stable movement path for the sliding sleeve; and, lubricating oil grooves and oil outlet holes are arranged on the sliding plane corresponding to the sliding sleeve, which are used to introduce the lubricating oil provided by the oil filling hole into the sliding plane, ensuring that the sliding sleeve is fully lubricated during movement; and the design of the hydraulic plane makes the installation of the hydraulic push rod more stable and convenient.

[0022] Preferably, a U-shaped center hole is provided in the middle of the sliding sleeve corresponding to the radial cross-sectional shape of the fixed shaft, the upper and lower inner walls of the U-shaped center hole are fitted on the sliding plane, and the radial width L of the inner wall is greater than the radial width N of the sliding plane, and a positioning hole is provided on the vertical inner wall between the upper and lower inner walls, and the end of the hydraulic push rod is connected to the sliding sleeve by matching with the positioning hole.

[0023] It should be noted that the shape of the U-shaped center hole matches the U-shaped cross-section of the fixed shaft, ensuring a close fit between the two, reducing friction and wear during sliding, ensuring that the sliding sleeve will not shift or shake during movement, and improving the stability and reliability of the system; the radial width L of the upper and lower inner walls of the U-shaped center hole is greater than the radial width N of the sliding plane. This design provides sufficient space for the movement of the sliding sleeve; the design of the positioning hole ensures that the hydraulic push rod can be firmly connected to the sliding sleeve and transmit push and pull forces.

[0024] Preferably, the hydraulic push rod includes a guide sleeve, a piston rod and a fixed seat, the guide sleeve is arranged on the fixed seat, and the guide sleeve and the fixed seat are provided with a through hole for the piston rod to pass through along the axial direction of the guide sleeve, the piston rod is arranged in the through hole and can move axially along the through hole, the two ends of the fixed seat are fixed on the hydraulic plane, and the guide sleeve is arranged in the mounting hole in a sealing fit with the mounting hole.

[0025] It should be noted that the guide sleeve is arranged on the fixed seat to ensure that the piston rod slides smoothly along the axial direction, and at the same time cooperates with the mounting hole seal to prevent leakage of hydraulic oil; the fixed seat is firmly mounted on the hydraulic plane by bolts or other fixing methods, ensuring the stability and reliability of the hydraulic push rod under high-pressure working environment; the piston rod can move axially along the through hole in the guide sleeve, and the precise position adjustment of the driven wheel is achieved through the control of the hydraulic system, ensuring the accuracy of the position adjustment of the sliding sleeve, thereby realizing fine adjustment of the saw rope tension and improving the cutting quality.

[0026] Beneficial effects of the present invention: The present invention provides a multi-rope saw machine with a saw rope that can be adaptively tensioned. The hydraulic push rod is used to control the radial movement of the sliding sleeve along the fixed axis, thereby adjusting the distance between the driven wheel and the driving wheel to achieve automatic tensioning of the saw rope and ensure the cutting quality. The hydraulic system can automatically adjust the extension and retraction amount of the hydraulic push rod according to the tension of the saw rope to achieve adaptive tensioning of the saw rope and reduce manual intervention. The distance between the driving wheel and the driven wheel is adjusted by the tensioning cylinder to adapt to the installation of saw ropes of different lengths, thereby improving the applicability of the equipment. The overall structure is compact, light in weight, and easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of a multi-rope saw machine in which the saw rope can be adaptively tensioned according to Example 1 of the present invention.

[0028] Figure 2 This is a schematic diagram of the internal structure of a multi-rope saw machine in which the saw rope can be adaptively tensioned according to Example 1 of the present invention.

[0029] Figure 3 This is a schematic diagram of the three-dimensional structure of the cutting frame according to Example 1 of the present invention.

[0030] Figure 4 This is a schematic diagram of the structure of the protective cover of Example 1 of the present invention.

[0031] Figure 5 This is a schematic diagram of the structure of the driving device of Example 1 of the present invention.

[0032] Figure 6 This is a schematic structural diagram of the tensioning device of Example 1 of the present invention.

[0033] Figure 7 It is a three-dimensional schematic diagram of the driven device of embodiment 1 of the present invention.

[0034] Figure 8 This is a schematic diagram of the structure of the driven device of Example 1 of the present invention.

[0035] Fig. 9 This is a schematic diagram of the structure of the fixed shaft of Example 1 of the present invention.

[0036] Fig.10 This is a schematic structural diagram of the sliding sleeve of Example 1 of the present invention.

[0037] Fig.11 This is a schematic diagram of the structure of the hydraulic push rod of Example 1 of the present invention.

[0038] In the figure: 1, frame; 2, cutting frame; 21, driving support; 22, driven support; 23, fixed beam; 3, lifting device; 4, driving device; 41, driving shaft; 42, driving wheel; 43, driving motor; 5, driven device; 51, fixed shaft; 511, sliding plane; 512, hydraulic plane; 513, hydraulic conveying chamber; 514, mounting hole; 515, oil filling hole; 516, oil outlet hole; 517, lubricating oil tank; 52, hydraulic Push rod; 521, guide sleeve; 522, piston rod; 523, fixed seat; 53, sliding sleeve; 531, U-shaped center hole; 532, positioning hole; 54, driven wheel; 6, hydraulic conveying system; 7, tensioning device; 71, tensioning cylinder; 72, mounting seat; 73, slide rail; 8, guide wheel group; 9, protective cover; 91, driving cover; 92, driven cover; 93, connecting cover; 931, cooling pipe; 10, trolley; 11, water supply device.

[0039] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Example 1 like Figure 1-Figure 11 As shown, a multi-rope saw machine with a saw rope capable of adaptive tensioning comprises: a frame 1, a cutting frame 2, a lifting device 3, a driving device 4 and a driven device 5, wherein the cutting frame 2 is arranged on the frame 1 through the lifting device 3, the driving device 4 and the driven device 5 are correspondingly arranged at two ends of the cutting frame 2, and the saw rope is correspondingly sleeved on a driving wheel 42 of the driving device 4 and a driven wheel 54 of the driven device 5; The driven device 5 includes a fixed shaft 51, a hydraulic push rod 52, a sliding sleeve 53 and a driven wheel 54. The fixed shaft 51 is provided with at least one hydraulic delivery chamber 513 penetrating the fixed shaft 51 along its axial direction. Both ends of the hydraulic delivery chamber 513 are connected to the pipeline of the hydraulic delivery system 6. At least one mounting hole 514 connected to the hydraulic delivery chamber 513 is provided on the outer peripheral surface of the fixed shaft 51 along its axial direction. The opening of the mounting hole 514 is arranged toward the side away from the driving wheel 42. The sliding sleeve 53 is sleeved on the outer side of the fixed shaft 51 corresponding to the mounting hole 514. The driven wheel 54 is rotatably sleeved on the sliding sleeve 53. One end of the hydraulic push rod 52 is sealed and arranged in the mounting hole 514, and the other end is connected to the sliding assembly. The hydraulic push rod 52 can drive the sliding sleeve 53 to move along the axial direction of the mounting hole 514 under the control of the hydraulic system.

[0042] The cutting frame 2 includes a driving support 21, a driven support 22 and a fixed beam 23. The driving support 21 and the driven support 22 are arranged on the corresponding columns of the frame 1 through a lifting device 3. The driving device 4 and the driven device 5 are respectively arranged on the driving support 21 and the driven support 22. The fixed beam 23 is horizontally arranged between the driving support 21 and the driven support 22, and its two ends are respectively connected and fixed to the inner upper ends of the driving support 21 and the driven support 22.

[0043] The driving device 4 includes a driving shaft 41, a driving wheel 42 and a driving motor 43. The driving wheel 42 is fixedly sleeved on the driving shaft 41. Both ends of the driving shaft 41 are fixed on the driving support 21 through bearing seats. The driving motor 43 is installed on the driving support 21 and is connected to the driving shaft 41 in transmission.

[0044] Both ends of the driven device 5 are fixed to the driven support 22 via a tensioning device 7 , and the distance between the driving wheel 42 and the driven wheel 54 can be adjusted via the tensioning device 7 .

[0045] The tensioning device 7 includes a tensioning cylinder 71, a mounting seat 72 and a slide rail 73. The slide rail 73 is horizontally arranged on the driven support 22. The mounting seat 72 is movably arranged on the slide rail 73. The tensioning cylinder 71 is horizontally arranged on the driven support 22, and one end of the tensioning cylinder 71 is fixed on the driven support 22, and the other end is connected to the mounting seat 72. The tensioning cylinder 71 can drive the mounting seat 72 to move axially along the slide rail 73 through telescopic movement. The two ends of the fixed shaft 51 are respectively fixed on the corresponding mounting seats 72.

[0046] The multi-rope saw machine also includes a guide wheel group 8, a protective cover 9, a water supply device 11 and a trolley 10. The guide wheel group 8 is symmetrically arranged at the lower ends of the corresponding driving support 21 and the driven support 22 corresponding to the driving wheel 42 and the driven wheel 54, and is located between the driving wheel 42 and the driven wheel 54. The protective cover 9 is arranged on the cutting frame 2, the water supply device 11 is arranged on the cutting frame 2 between the driving wheel 42 and the guide wheel, and the trolley 10 is correspondingly arranged directly below the cutting frame 2 and is located between the driving wheel 42 and the guide wheel.

[0047] The protective cover 9 includes a driving shield 91, a driven shield 92 and a connecting shield 93. The driving shield 91 and the driven shield 92 are respectively correspondingly arranged on the driving support 21 and the driven support 22. The connecting shield 93 is correspondingly arranged on the fixed crossbeam 23, and its two ends are respectively connected to the driving shield 91 and the driven shield 92. At least one cooling pipe 931 is arranged on the lower surface of the connecting shield 93 along its axial direction. One end of the cooling pipe 931 is closed, and the other end is connected to the water supply device 11, and a water spray hole is arranged thereon corresponding to the saw rope, and the outlet of the water spray hole is arranged toward the saw rope.

[0048] The radial cross-section of the fixed shaft 51 is U-shaped as a whole. One end of the U-shaped opening of the fixed shaft 51 is arranged toward the side away from the driving wheel 42. The upper and lower sides thereof are sliding planes 511. The plane between the sliding planes 511 is a hydraulic plane 512. The mounting holes 514 are arranged at intervals on the hydraulic planes 512 and are connected with the corresponding hydraulic delivery chambers 513. The fixed shaft 51 is also provided with oil filling holes 515 along the axial direction corresponding to the sliding planes 511. The sliding plane 511 is provided with lubricating oil grooves 517 and oil outlet holes 516 at intervals corresponding to the sliding sleeve 53. The lubricating oil grooves 517 are connected with the oil filling holes 515 through the oil outlet holes 516.

[0049] A U-shaped center hole 531 is provided in the middle of the sliding sleeve 53 corresponding to the radial cross-sectional shape of the fixed shaft 51, the upper and lower inner walls of the U-shaped center hole 531 are fitted on the sliding plane 511, and the radial width L of the inner wall is greater than the radial width N of the sliding plane 511, and a positioning hole 532 is provided on the vertical inner wall between the upper and lower inner walls, and the end of the hydraulic push rod 52 is connected to the sliding sleeve 53 by cooperating with the positioning hole 532.

[0050] The hydraulic push rod 52 includes a guide sleeve 521, a piston rod 522 and a fixed seat 523. The guide sleeve 521 is arranged on the fixed seat 523, and a through hole for the piston rod 522 to pass through is provided on the guide sleeve 521 and the fixed seat 523 along the axial direction of the guide sleeve 521. The piston rod 522 is arranged in the through hole and can move axially along the through hole. Both ends of the fixed seat 523 are fixed on the hydraulic plane 512, and the guide sleeve 521 is sealed and matched with the mounting hole 514 and is arranged in the mounting hole 514.

[0051] The working principle and use method of a multi-rope saw machine with adaptively tensioned saw ropes in this embodiment: The embodiment provides a multi-rope saw machine with a saw rope capable of adaptive tensioning. The frame 1 serves as the basic structure of the entire device, supporting and fixing all other components. The cutting frame 2 is mounted on the frame 1 through a lifting device 3, and the height can be adjusted as needed. The lifting device 3 is usually composed of a hydraulic cylinder or an electric screw rod, etc., and can accurately control the height of the cutting frame 2. The driving device 4 includes a driving shaft 41, a driving wheel 42 and a driving motor 43. The driving motor 43 is mounted on the driving support 21 and connected to the driving shaft 41 through a suitable transmission mechanism (such as a gear or a belt). Both ends of the driving shaft 41 are fixed to the driving support 21 through bearing seats to ensure that it rotates smoothly. The driving motor 43 transmits the rotational torque to the driving wheel 42 through the driving shaft 41, so that the driving wheel 42 rotates stably and drives the saw rope to operate. The driven device 5 comprises a fixed shaft 51, a hydraulic push rod 52, a sliding sleeve 53 and a driven wheel 54. A plurality of hydraulic delivery chambers 513 are arranged inside the fixed shaft 51. These chambers are connected to an external hydraulic system for transmitting hydraulic oil. The hydraulic push rod 52 is embedded in a mounting hole 514 on the fixed shaft 51. One end of the hydraulic push rod is sealed and the other end is connected to the sliding sleeve 53. Under the action of hydraulic pressure, the hydraulic push rod 52 can be extended and retracted, thereby pushing the sliding sleeve 53 to move axially. The sliding sleeve 53 is sleeved on the outer side of the fixed shaft 51 and can move with the action of the hydraulic push rod 52. It also carries the driven wheel 54, so that the position of the driven wheel 54 can be adjusted as needed. The driven wheel 54 is rotatably mounted on the sliding sleeve 53 through a bearing, and can adjust its position under the guidance of the sliding sleeve 53 while maintaining good contact with the saw rope. The tensioning device 7 includes a tensioning oil cylinder 71, a mounting seat 72 and a slide rail 73. The mounting seat 72 is movably arranged on the slide rail 73. The tensioning oil cylinder 71 is horizontally arranged on the driven support 22, one end of which is fixed on the driven support 22, and the other end is connected to the mounting seat 72. The position of the mounting seat 72 is adjusted by the extension and contraction of the tensioning oil cylinder 71, thereby changing the distance between the driving wheel 42 and the driven wheel 54, so as to preliminarily control the tension of the saw rope, providing a basis for fine adjustment of the hydraulic system; A U-shaped center hole 531 is provided in the middle of the sliding sleeve 53, and its shape matches the U-shaped cross section of the fixed shaft 51 to ensure a close fit between the two and reduce friction and wear during the sliding process. The radial width of the upper and lower inner walls of the U-shaped center hole 531 is greater than the radial width of the sliding plane 511, providing sufficient activity space for the movement of the sliding sleeve 53. The positioning hole 532 on the vertical inner wall ensures that the hydraulic push rod 52 can be firmly connected to the sliding sleeve 53 and transmit push and pull forces. The hydraulic push rod 52 includes a guide sleeve 521, a piston rod 522 and a fixed seat 523. The guide sleeve 521 is arranged on the fixed seat 523 to ensure that the piston rod 522 slides smoothly in the axial direction and seals with the mounting hole 514 to prevent leakage of hydraulic oil. The fixed seat 523 is firmly mounted on the hydraulic plane 512 by bolts or other fixing methods to ensure the stability and reliability of the hydraulic push rod 52 in a high-pressure working environment. The piston rod 522 can move axially along the through hole in the guide sleeve 521. The driven wheel 54 can be accurately adjusted in position through the control of the hydraulic system to ensure the accuracy of the position adjustment of the sliding sleeve 53, thereby achieving fine adjustment of the tension of the saw rope.

[0052] When in use, first ensure that the frame 1, cutting frame 2, driving device 4 and driven device 5 are firmly installed, and all connecting parts are tightened without looseness. Check whether the hydraulic system, electrical system and water supply device 11 are working properly to ensure that there is no leakage and failure. Correctly install the saw rope on the driving wheel 42 and the driven wheel 54, and ensure that the saw rope passes through the guide wheel group 8 so that its running path is smooth to avoid deflection or jamming. Then adjust the distance between the driving wheel 42 and the driven wheel 54 through the tensioning device 7 (tensioning cylinder 71, mounting seat 72 and slide rail 73), operate the tensioning cylinder 71, and push the mounting seat 7 2 moves along the slide rail 73 to initially tighten the saw rope to ensure that the saw rope is not too loose or too tight, and the hydraulic system is started to push the hydraulic push rod 52 to extend and retract through the hydraulic oil in the hydraulic delivery chamber 513, thereby driving the sliding sleeve 53 to move radially along the fixed shaft 51 to fine-tune the position of the driven wheel 54 to ensure that the saw rope maintains appropriate tension; then the drive motor 43 is started, the drive shaft 41 drives the drive wheel 42 to rotate, and the saw rope starts to circulate. The running state of the saw rope is observed to ensure that it is stable and without shaking. At the same time, the water supply device 11 is started, and the cooling pipe 931 starts to spray water to cool the saw rope. The material to be cut is placed on the trolley 10 and fixed by a clamp or other fixing device to ensure that the material does not move during the cutting process; then the lifting device 3 is started to make the material contact with the saw rope and start cutting. During the cutting process, the hydraulic system monitors the change of the hydraulic oil pressure in real time. If the saw rope is loose, the pressure detected by the hydraulic system will become smaller. At this time, the hydraulic system will replenish the hydraulic oil, increase the pressure to extend the corresponding hydraulic push rod 52, push the sliding sleeve 53 and the driven wheel 54 to move outward, thereby tightening the saw rope again. When the detected pressure does not occur for a period of time, the hydraulic oil will be increased. When changes occur, it means that the slack of the saw rope has exceeded the adjustable range of the hydraulic push rod 52. At this time, it is necessary to adjust the position of the driven device 5 through the tensioning device 7 again or replace the corresponding saw rope; after the cutting is completed, stop the drive motor 43, stop the saw rope movement, turn off the hydraulic system and the water supply device 11, remove the cut material from the trolley 10, clean the debris on the trolley 10, and complete the work; finally, contract the tensioning cylinder 71 to reduce the distance between the driving wheel 42 and the driven wheel 54, loosen the saw rope, remove the saw rope, check its wear, and replace it if necessary.

[0053] Finally, it should be noted that the above is only a preferred embodiment of the present invention, which is only used to illustrate the technical solution of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

[0054] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by the terms "upper", "lower", "upper end", "lower end", "upper surface", "lower surface", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0055] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A multi-rope saw machine with a saw rope capable of adaptive tensioning, comprising: A frame (1), a cutting frame (2), a lifting device (3), a driving device (4) and a driven device (5), wherein the cutting frame (2) is arranged on the frame (1) via the lifting device (3), the driving device (4) and the driven device (5) are correspondingly arranged at two ends of the cutting frame (2), and a saw rope is correspondingly sleeved on a driving wheel (42) of the driving device (4) and a driven wheel (54) of the driven device (5); the characteristics are: The driven device (5) comprises a fixed shaft (51), a hydraulic push rod (52), a sliding sleeve (53) and a driven wheel (54); the fixed shaft (51) is provided with at least one hydraulic delivery chamber (513) penetrating the fixed shaft (51) along its axial direction; both ends of the hydraulic delivery chamber (513) are connected to a pipeline of a hydraulic delivery system (6); and at least one mounting hole (514) connected to the hydraulic delivery chamber (513) is provided on an outer peripheral surface of the fixed shaft (51) along its axial direction at intervals; the mounting hole (514) is provided to connect the fixed shaft (511) and the hydraulic delivery chamber (513). ) is arranged with its opening facing a side away from the driving wheel (42); the sliding sleeve (53) is sleeved on the outside of the fixed shaft (51) corresponding to the mounting hole (514); the driven wheel (54) is rotatably sleeved on the sliding sleeve (53); one end of the hydraulic push rod (52) is sealed and arranged in the mounting hole (514); the other end is connected to the sliding assembly; and the hydraulic push rod (52) can drive the sliding sleeve (53) to move axially along the mounting hole (514) under the control of the hydraulic system.

2. A multi-rope saw machine with adaptively tensioned saw ropes as claimed in claim 1, characterized in that: The cutting frame (2) comprises a driving support (21), a driven support (22) and a fixed crossbeam (23); the driving support (21) and the driven support (22) are arranged on corresponding columns of the frame (1) via a lifting device (3); the driving device (4) and the driven device (5) are respectively arranged on the driving support (21) and the driven support (22); the fixed crossbeam (23) is horizontally arranged between the driving support (21) and the driven support (22), and its two ends are respectively connected and fixed to the inner upper ends of the driving support (21) and the driven support (22).

3. A multi-rope saw machine with adaptively tensioned saw ropes as claimed in claim 2, characterized in that: The driving device (4) comprises a driving shaft (41), a driving wheel (42) and a driving motor (43); the driving wheel (42) is fixedly sleeved on the driving shaft (41); both ends of the driving shaft (41) are fixed to a driving support (21) via bearing seats; the driving motor (43) is mounted on the driving support (21) and is drivingly connected to the driving shaft (41).

4. A multi-rope saw machine with adaptively tensioned saw ropes as claimed in claim 2, characterized in that: Both ends of the driven device (5) are fixed to the driven support (22) via a tensioning device (7), and the distance between the driving wheel (42) and the driven wheel (54) can be adjusted via the tensioning device (7).

5. A multi-rope saw machine with adaptively tensioned saw ropes as claimed in claim 4, characterized in that: The tensioning device (7) comprises a tensioning cylinder (71), a mounting seat (72) and a slide rail (73); the slide rail (73) is horizontally arranged on the driven support (22); the mounting seat (72) is movably arranged on the slide rail (73); the tensioning cylinder (71) is horizontally arranged on the driven support (22); one end of the tensioning cylinder (71) is fixed on the driven support (22); the other end is connected to the mounting seat (72); the tensioning cylinder (71) can drive the mounting seat (72) to move axially along the slide rail (73) through telescopic movement; and both ends of the fixed shaft (51) are respectively fixed on the corresponding mounting seats (72).

6. A multi-rope saw machine with adaptively tensioned saw ropes as claimed in claim 2, characterized in that: The multi-rope wire saw machine further comprises a guide wheel group (8), a protective cover (9), a water supply device (11) and a trolley (10); the guide wheel group (8) is symmetrically arranged at the lower end of the corresponding driving support (21) and the driven support (22) corresponding to the driving wheel (42) and the driven wheel (54), and is located between the driving wheel (42) and the driven wheel (54); the protective cover (9) is arranged on the cutting frame (2); the water supply device (11) is arranged on the cutting frame (2) between the driving wheel (42) and the guide wheel; and the trolley (10) is correspondingly arranged directly below the cutting frame (2) and is located between the driving wheel (42) and the guide wheel.

7. A multi-rope saw machine with adaptively tensioned saw ropes as claimed in claim 6, characterized in that: The protective cover (9) comprises a driving protective cover (91), a driven protective cover (92) and a connecting protective cover (93); the driving protective cover (91) and the driven protective cover (92) are respectively arranged on the driving support (21) and the driven support (22); the connecting protective cover (93) is respectively arranged on the fixed crossbeam (23), and its two ends are respectively connected to the driving protective cover (91) and the driven protective cover (92); at least one cooling pipe (931) is arranged on the lower surface of the connecting protective cover (93) along the axial direction thereof; one end of the cooling pipe (931) is closed, and the other end is connected to the water supply device (11); a water spray hole is arranged on the cooling pipe corresponding to the saw rope, and the outlet of the water spray hole is arranged toward the saw rope.

8. The multi-rope saw machine with adaptively tensioned saw ropes according to claim 1, characterized in that: The radial cross section of the fixed shaft (51) is U-shaped as a whole. One end of the U-shaped opening of the fixed shaft (51) is arranged toward a side away from the driving wheel (42). The upper and lower sides thereof are sliding planes (511). The plane between the sliding planes (511) is a hydraulic plane (512). The mounting holes (514) are arranged at intervals on the hydraulic planes (512) and are communicated with the corresponding hydraulic delivery chambers (513). The fixed shaft (51) is also provided with oil injection holes (515) along the axial direction corresponding to the sliding planes (511). The sliding plane (511) is provided with lubricating oil grooves (517) and oil outlet holes (516) at intervals corresponding to the sliding sleeve (53). The lubricating oil grooves (517) are communicated with the oil injection holes (515) through the oil outlet holes (516).

9. A multi-rope saw machine with adaptively tensioned saw ropes as claimed in claim 8, characterized in that: A U-shaped center hole (531) is provided in the middle of the sliding sleeve (53) corresponding to the radial cross-sectional shape of the fixed shaft (51); the upper and lower inner walls of the U-shaped center hole (531) are fitted on the sliding plane (511), and the radial width L of the inner wall is greater than the radial width N of the sliding plane (511); a positioning hole (532) is provided on the vertical inner wall between the upper and lower inner walls, and the end of the hydraulic push rod (52) is connected to the sliding sleeve (53) by matching with the positioning hole (532).

10. The multi-rope saw machine with adaptively tensioned saw ropes according to claim 1, characterized in that: The hydraulic push rod (52) comprises a guide sleeve (521), a piston rod (522) and a fixing seat (523); the guide sleeve (521) is arranged on the fixing seat (523); and a through hole for the piston rod (522) to pass through is provided on the guide sleeve (521) and the fixing seat (523) along the axial direction of the guide sleeve (521); the piston rod (522) is arranged in the through hole and can move axially along the through hole; both ends of the fixing seat (523) are fixed on the hydraulic plane (512); and the guide sleeve (521) is arranged in the fixing hole (514) in a sealing manner and in cooperation with the fixing hole (514).

Images