Sawing force measuring device for cutting bidirectional loaded test block by diamond bead wire saw

Abstract

The utility model discloses a sawing force measuring device for cutting a bidirectional loaded test block by a diamond bead wire saw, and belongs to the technical field of mechanical test and experimental equipment. Comprising a three-dimensional platform type force measuring table; the horizontal three-layer laminating machine is fixedly arranged on the three-dimensional platform type force measuring table; the normal loading control system is arranged right above a to-be-loaded area of the horizontal three-layer laminating machine; and the cutting side of a bead string wire saw of the diamond bead string wire saw cutting system is positioned below the loading surface of the normal loading control system. The device simulates a real ground stress environment of a deep coal seam through a bidirectional loading control system, adopts a three-dimensional platform type force measuring table, measures tangential and normal sawing force of diamond string bead wire saw cutting in real time in the cutting process, and combines a variable speed motor control system to adjust the cutting linear speed and a lifting table control system to control the feeding speed, so as to realize the real-time cutting of the diamond string bead wire. And precise cutting of test blocks with different compressive strength matched with cooperation of multiple parameters is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical testing and experimental equipment, and particularly relates to a device for measuring the sawing force of a diamond bead wire saw for cutting a bidirectionally loaded test block. Background Art

[0002] Diamond bead wire saws are suitable for cutting and processing various hard materials and have also been widely used in seam cutting for pressure relief and permeability improvement. During the process of diamond bead wire saw cutting for seam pressure relief, different cutting conditions and wire saw parameter selections will all affect the sawing force. In the prior art, the magnitude of the sawing force is mostly indirectly determined through calculations, lacking equipment for directly measuring the sawing force generated by a diamond bead wire saw when cutting a loaded test block; or relying on indirect calculations based on theoretical models, lacking direct measurement means, resulting in relatively large errors in cutting process design.

[0003] In addition, when most scholars currently conduct wire saw cutting tests and establish sawing models, they mostly consider the influence of wire speed, feed speed, specimen length, and specimen hardness on the sawing force, rarely involving the loaded condition, or the test block is only unidirectionally loaded, which cannot reflect the actual stress environment of the coal seam, causing the predicted value of the sawing force to deviate from the actual working condition value. Bidirectional loading can reproduce the synergistic effect of horizontal tectonic stress and vertical load in the coal seam and achieve accurate measurement of the tangential sawing force and normal sawing force of a diamond bead wire saw under bidirectional loading conditions.

[0004] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of suggestion that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Utility Model

[0005] In order to solve the technical problem in the prior art that there is a lack of direct measurement means or large measurement deviation for the sawing force generated by wire saw cutting, a device for measuring the sawing force of a diamond bead wire saw for cutting a bidirectionally loaded test block is provided, which relates to a device for measuring the tangential sawing force and normal sawing force of a diamond bead wire saw under different wire speeds and feed speeds of the diamond bead wire saw, different hardnesses and sizes of the loaded test block, especially under different bidirectional loads on the loaded test block.

[0006] The device for measuring the sawing force of a diamond bead wire saw for cutting a bidirectionally loaded test block provided by the utility model includes:

[0007] A three-dimensional platform type force measuring table for measuring the signal values of the tangential sawing force and the normal sawing force;

[0008] A horizontal three-layer pressing machine fixedly arranged on the three-dimensional platform type force measuring table;

[0009] The normal loading control system is arranged directly above the loading area of the horizontal three-layer press.

[0010] The diamond bead wire saw cutting system has the cutting side of the bead wire saw below the loading surface of the normal loading control system.

[0011] In some embodiments, the horizontal three-layer press is axially provided with an axial loading control system which contains an axial loading controller. The horizontal three-layer press provides axial loading for the test block under load, and the loading magnitude is controlled by the axial loading controller.

[0012] In some embodiments, the normal loading control system includes a hydraulic press, a left hydraulic press auxiliary plate buckling device, and a right hydraulic press auxiliary plate buckling device. The left hydraulic press auxiliary plate buckling device and the right hydraulic press auxiliary plate buckling device fix the hydraulic press directly above the loading area of the horizontal three-layer press.

[0013] In some embodiments, one end of the left hydraulic press auxiliary plate buckling device and the right hydraulic press auxiliary plate buckling device is respectively fixed on both sides of the hydraulic press, and the other end of the left hydraulic press auxiliary plate buckling device and the right hydraulic press auxiliary plate buckling device is respectively fixed on the studs of the horizontal three-layer press.

[0014] In some embodiments, the diamond bead wire saw cutting system includes a driving wheel, a driven wheel, and a diamond bead wire saw sleeved on the driving wheel and the driven wheel. The driving wheel is electrically connected to a variable speed motor control system. The variable speed motor control system is provided with a driving motor, and the driving motor is a variable speed motor.

[0015] In some embodiments, the driving wheel and the driven wheel are respectively equipped with a lifting table control system.

[0016] In some embodiments, the diamond bead wire saw is also equipped with a tension adjusting part.

[0017] In some embodiments, the diamond bead wire saw cutting system further includes at least one fixed pulley. The diamond bead wire saw is sleeved on the driving wheel, the driven wheel, and the fixed pulley, and the height of the fixed pulley is higher than that of the normal loading control system.

[0018] In some embodiments, the diamond bead wire saw cutting system further includes 2 fixed pulleys. The diamond bead wire saw is sleeved on the driving wheel, the driven wheel, and the 2 fixed pulleys.

[0019] In some embodiments, the diamond bead wire saw cutting bidirectional loading test block sawing force measuring device further includes a sawing force data acquisition system, and the sawing force data acquisition system, the variable speed motor control system, and the lifting table control system are all electrically connected to the three-dimensional platform type force measuring table.

[0020] By adopting the above technical solution, the following technical effects are achieved:

[0021] As Figure 4 shown, the A and B surfaces of the coal seam are free boundaries. When cutting is carried out, the coal seam to be cut is only subjected to the horizontal tectonic stress σ in the X-axis direction x and the vertical load σ in the Z-axis direction z . The wire saw is simultaneously pressured in these two directions, increasing its cutting resistance. The traditional uniaxial loading sawing force measuring device only considers the vertical load σ in the Z-axis direction z , while ignoring the influence of the horizontal tectonic stress σ in the X-axis direction x on the sawing force, resulting in the measurement data not reflecting the actual working conditions. To address this issue, the present utility model innovatively designs a bidirectional loading system that can synchronously simulate the actual loading states of the coal seam in the X-axis and Z-axis directions and accurately measure the tangential and normal sawing forces of the diamond bead wire saw during the cutting process. On the basis of considering conventional influencing factors such as the linear velocity, feed rate, test block length, and test block hardness, this test device further reproduces the actual working conditions of the loaded specimen to simulate the real in-situ stress environment, thereby enhancing the reliability of the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments:

[0023] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the measuring device provided by the present utility model;

[0024] Figure 2 It is a schematic diagram of the overall structure of another embodiment of the measuring device provided by the present utility model;

[0025] Figure 3 It is a schematic diagram of the axial and normal loading control system structure of the present utility model;

[0026] Figure 4 It is a schematic diagram of the force and feed cutting directions of the diamond bead wire saw cutting the coal seam;

[0027] In the figure: 1 - Variable speed motor control system, 2 - Driving wheel, 3 - Diamond bead wire saw, 4 - Driven wheel, 5 - Tension adjustment unit, 6 - Lifting table control system, 7 - Cutting force data acquisition system, 8 - Three-dimensional platform type force measuring table, 9 - Loaded test block, 10 - Horizontal three-layer pressing machine, 11 - Axial loading control system, 12 - Axial loading controller, 13 - Normal loading control system: 13-1 Right hydraulic press auxiliary plate buckle device, 13-2 Left hydraulic press auxiliary plate buckle device, 13-3 Hydraulic press, 14 - Hydraulic press loading controller, 15 - Fixed pulley, 16 - Direction of wire saw linear velocity, 17 - Direction of wire saw cutting coal seam, 18 - Stress σ in the X-axis direction x , 19 - Stress σ in the Y-axis direction y , 20 - Stress σ in the Z-axis direction z . Specific embodiments

[0028] The technical solutions of the present invention will be described below with reference to the accompanying drawings through specific embodiments. It should be understood that one or more than four steps mentioned in the present invention do not exclude the existence of other methods and steps before and after the combined steps, or other methods and steps can be inserted between these clearly mentioned steps. It should also be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. Unless otherwise specified, the numbers of each method step are only for the purpose of identifying each method step, rather than restricting the arrangement order of each method or limiting the scope of implementation of the present invention. The change or adjustment of their relative relationship can also be regarded as the scope in which the present invention can be implemented under the condition of no substantial change in technical content.

[0029] There is no specific limitation on the sources of the raw materials and instruments used in the embodiments, and they can be purchased in the market or prepared according to the conventional methods well-known to those skilled in the art.

[0030] As Figure 1 , Figure 3 shown, a device for measuring the cutting force of a diamond bead wire saw for cutting a bidirectionally loaded test block includes:

[0031] A three-dimensional platform type force measuring table 8 integrated with a three-way piezoelectric ceramic sensor array, which is used to measure the signal values of the tangential cutting force and the normal cutting force;

[0032] A horizontal three-layer pressing machine 10, which is fixedly arranged on the three-dimensional platform type force measuring table 8, and the fixing method is rigid fixing;

[0033] A normal loading control system 13, which is arranged directly above the area to be loaded of the horizontal three-layer pressing machine 10, and the area to be loaded is the area where the loaded test block 9 is placed;

[0034] A diamond bead wire saw cutting system, the cutting side of the bead wire saw of which is located below the loading surface of the normal loading control system 13.

[0035] In one embodiment, an axial loading control system 11 is axially arranged on the horizontal three-layer pressing machine 10. The axial loading control system 11 includes an axial loading controller 12. The axial loading controller 12 is electrically connected to the horizontal three-layer pressing machine 10. The horizontal three-layer pressing machine 10 provides axial loading for the loaded test block 9, and the loading magnitude is controlled by the axial loading controller 12.

[0036] In one embodiment, the normal loading control system 13 includes a hydraulic press 13-3, a left hydraulic press auxiliary plate buckling device 13-2, and a right hydraulic press auxiliary plate buckling device 13-1. The left hydraulic press auxiliary plate buckling device 13-2 and the right hydraulic press auxiliary plate buckling device 13-1 fix the hydraulic press 13-3 directly above the area to be loaded on the horizontal three-layer pressing machine 10, that is, directly above the area where the loaded test block 9 is placed.

[0037] In one embodiment, one end of the left hydraulic press auxiliary plate buckling device 13-2 and the right hydraulic press auxiliary plate buckling device 13-1 is respectively fixed on both sides of the hydraulic press 13-3, and the other end of the left hydraulic press auxiliary plate buckling device 13-2 and the right hydraulic press auxiliary plate buckling device 13-1 is respectively fixed on the studs of the horizontal three-layer pressing machine 10.

[0038] In one embodiment, the right hydraulic press auxiliary plate buckling device 13-1 and the left hydraulic press auxiliary plate buckling device 13-2 are tightly connected to the studs on the horizontal three-layer pressing machine 10 by flange bolts, and then the hydraulic press 13-3 is tightly connected to the right hydraulic press auxiliary plate buckling device 13-1 and the left hydraulic press auxiliary plate buckling device 13-2 by flange bolts, so that the hydraulic press 13-3 is stabilized in the normal direction of the loaded test block 9. Finally, a load is applied to the loaded test block 9 through the hydraulic press loading controller 14.

[0039] In one embodiment, the diamond bead wire saw cutting system includes a driving wheel 2, a driven wheel 4, and a diamond bead wire saw 3 sleeved on the driving wheel 2 and the driven wheel 4. The driving wheel 2 is electrically connected to the variable speed motor control system 1. The variable speed motor control system 1 is provided with a driving motor. In one embodiment, the driving wheel 2 connects the motor shaft and the driving wheel shaft through a coupling, and the driving wheel 2 is a guide wheel for a special rope saw machine in the mine.

[0040] In one embodiment, the driving motor is a variable speed motor with a rated power of 7750W and a rated speed of 2800r / min. The speed of the variable speed motor is displayed on the screen of the variable speed motor control system 1. After the driving motor drives the driving wheel 2 to rotate, it is transmitted to the driven wheel 4 through the diamond bead wire saw 3 to form a closed-loop cutting motion. By adjusting the motor speed, the wire speed of the wire saw can be accurately controlled.

[0041] In one embodiment, the driving wheel 2 and the driven wheel 4 are respectively equipped with a lifting table control system 6.

[0042] In one embodiment, the lifting table control system 6 includes two groups of lifting tables, which are respectively used to support and lift the driving wheel 2 and the driven wheel 4. Each group of lifting tables can bear a weight of 200 kg. The lifting speed of the lifting table can be displayed on the screen of the lifting table control system 6, and the feeding speed of the diamond bead wire saw 3 for cutting the test block is controlled by the lifting table control system 6.

[0043] In one embodiment, the diamond bead wire saw 3 is also equipped with a tension adjusting part 5. The driven wheel 4 is rotatably connected to the tension adjusting part 5, and the tension adjusting part 5 is fixed on the lifting table. Any tension adjusting part that can adjust the tension of the diamond bead wire saw 3 to prevent it from falling off and is applicable to the present invention is acceptable. In one embodiment, the tension adjusting part 5 includes a lead screw, a slide bar, a slide table, a fixing frame and a rotating handle; both ends of the slide bar are tightly connected to the fixing frame, one end of the lead screw is rotatably connected to the rotating handle, and the other end is tightly connected to the fixing frame. The bottom of the slide table is fixedly connected to the lifting table. The slide table is screwed to the lead screw and slidably connected to the slide bar. The rotating handle is used to drive the lead screw to rotate, and the displacement of the slide table is adjusted by driving the lead screw through the spiral handle, and the center distance between the driving wheel 2 and the driven wheel 4 is changed to adjust the tension of the diamond bead wire saw 3.

[0044] In one embodiment, the diamond bead wire saw cutting system further includes at least one fixed pulley 15, and the fixed pulley 15 is on the same horizontal plane as the driving wheel 2 and the driven wheel 4. The diamond bead wire saw 3 is sleeved on the driving wheel 2, the driven wheel 4 and the fixed pulley 15, and the height of the fixed pulley 15 is higher than that of the normal loading control system 13.

[0045] In one embodiment, the fixed pulley 15 is supported by a pillar.

[0046] In one embodiment, as Figure 2 、 Figure 3 shown, the diamond bead wire saw cutting system further includes two fixed pulleys. The two fixed pulleys 15 are on the same horizontal plane as the driving wheel 2 and the driven wheel 4, and the heights of the two fixed pulleys 15 are both higher than that of the normal loading control system 13. The diamond bead wire saw 3 is sleeved on the driving wheel 2, the driven wheel 4 and the two fixed pulleys 15. As the lifting table descends, the supported diamond bead wire saw 3 also descends. The fixed pulley 15 is used to support the non-cutting side of the diamond bead wire saw 3 to prevent the non-cutting side of the diamond bead wire saw 3 from damaging the normal loading control system 13 during the descending process, and at the same time is beneficial to ensuring that the cutting depth of the diamond bead wire saw 3 for cutting the loaded test block 9 is not limited.

[0047] In one embodiment, the sawing force measuring device for the diamond bead wire saw cutting bidirectionally loaded specimen further includes a sawing force data acquisition system 7. The sawing force data acquisition system 7, the variable speed motor control system 1, and the lifting table control system 6 are all electrically connected to the three-dimensional platform type force measuring table 8.

[0048] The operation process of the sawing force measuring device for the diamond bead wire saw cutting bidirectionally loaded specimen provided in this embodiment is as follows:

[0049] Start the driving motor to drive the rotation of the diamond bead wire saw 3 through the driving wheel 2 and the driven wheel 4. The driving wheel 2 and the driven wheel 4 are fixed on the lifting table. Control the diamond bead wire saw 3 to perform downward cutting through the lifting table control system 6, including the steps:

[0050] S1: Rigidly fix the horizontal three-layer pressing machine 10 on the three-dimensional platform type force measuring table 8. Place the loaded specimen 9 in the middle of the horizontal three-layer pressing machine 10 for fixation, and perform pre-cutting on the cutting area of the loaded specimen 9, so that later, without damaging the loading surface of the hydraulic press 13-3, the cutting side of the diamond bead wire saw 3 can work under the loading surface of the hydraulic press 13-3. S2: Use flange bolts to tightly connect one end of the right hydraulic press auxiliary plate buckling device 13-1 and the left hydraulic press auxiliary plate buckling device 13-2 to the studs on the horizontal three-layer pressing machine 10, and then use flange bolts to tightly connect the hydraulic press 13-3 to the other ends of the right hydraulic press auxiliary plate buckling device 13-1 and the left hydraulic press auxiliary plate buckling device 13-2, so that the hydraulic press 13-3 is stabilized in the normal direction of the loaded specimen 9. Make the loaded specimen 9 extend 2-3 cm beyond the loading surface of the hydraulic press 13-3, thus reserving a compression space so that the loading surface of the hydraulic press 13-3 will not interfere with the loading of the horizontal three-layer pressing machine 10 and realize the bidirectional loading of the loaded specimen 9. The force of the normal load simulates the loading in the X-axis direction, that is, the horizontal load; the load of the designed device is about 1 MPa - 30 MPa.

[0051] S3: Adjust the loading of the horizontal three-layer pressing machine 10 on the loaded specimen 9 through the axial loading controller 12, and the load is about 1 MPa - 30 MPa, which can simulate the vertical (Z-axis direction) load received by the coal seam.

[0052] S4: Control the center distance between the driving wheel 2 and the driven wheel 4 through the tension adjusting part 5 to make the diamond bead wire saw 3 have a tension force so that it will not break away during the rotation process.

[0053] S5: Start the driving motor to drive the driven wheel 4 to rotate by the driving wheel 2. Accelerate the diamond bead wire saw 3 to the cutting speed in advance. The lifting table control system 6 controls the lifting table to descend. The diamond bead wire saw 3 descends under the drive of the lifting table, control the feeding speed of the diamond bead wire saw 3, and cut the cutting specimen.

[0054] S6: The tangential sawing force and the normal sawing force exerted on the diamond bead wire saw 3 when cutting the loaded test block 9 are measured by the three-dimensional platform type force measuring table 8 integrated with the triaxial piezoelectric ceramic sensor array, and are monitored and collected in real time by the sawing force data acquisition system 7.

[0055] In one embodiment, there are two ways to place the cutting side of the diamond bead wire saw 3 under the loading surface of the hydraulic press 13-3 in step S1. One way is to pre-cut a groove on the upper surface of the loaded test block 9, the depth of the groove is greater than the diameter of the beads, place the wire saw on the cutting side of the diamond bead wire saw 3 into the groove, and drive the lifting table to move downward under the drive of the lifting table control system 6, so that the diamond bead wire saw 3 cuts the loaded test block 9 downward; the other way is to drill a hole at the lowest point of the position to be cut on the loaded test block 9 in advance, then pass the diamond bead wire saw 3 through the lowest point of the position to be cut on the loaded test block 9, and then drive it to move upward under the drive of the lifting table control system 6 to cut the coal block of the loaded test block 9.

[0056] The device for measuring the sawing force of the diamond bead wire saw for cutting a bidirectionally loaded test block provided by the utility model not only comprehensively considers conventional influencing factors such as linear velocity, feed rate, test block length, and test block hardness, but also fully considers the actual loading conditions of the test piece. Through the diamond bead wire saw cutting test, it analyzes the different linear velocities and feed rates of the diamond bead wire saw; and the real-time dynamic data of the tangential sawing force and the normal sawing force generated by the diamond bead wire saw cutting the loaded test block can be directly measured by the three-dimensional platform type force measuring table. It provides an experimental basis for establishing a quantitative model of sawing force - in-situ stress - process parameters, and ultimately serves the engineering requirements of deep coal seam wire saw cutting process optimization and dynamic disaster warning.

[0057] The device provided by the utility model simulates the real in-situ stress environment of deep coal seams through a bidirectional loading control system. Among them, the axial loading control system applies an axial load to the test block through a horizontal three-layer pressing machine, and the normal loading control system uses a hydraulic press combined with an auxiliary plate buckling device to achieve normal loading, and ensures the stable coordination of bidirectional loading through the structural adaptation of the loaded test block and the pressing surface of the hydraulic press. A three-dimensional platform type force measuring table integrated with a triaxial piezoelectric ceramic sensor array is used to measure the tangential and normal sawing forces during the cutting process of the diamond bead wire saw in real time, and the cutting wire speed is adjusted by combining with a variable speed motor control system and the feed rate is controlled by a lifting table control system to achieve the precise cutting of different compressive strength test blocks with multi-parameter coordinated adaptation. It not only fully considers the actual loading conditions of the test piece, but also greatly improves the reliability of the measurement results by simulating the real in-situ stress environment.

[0058] The foregoing description of the specific exemplary embodiments of the present utility model is for purposes of illustration and exemplification. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the invention and its practical applications, so that those skilled in the art can implement and utilize the various different exemplary embodiments of the invention, as well as various different selections and changes. The scope of the present utility model is intended to be defined by the claims and their equivalents.

Claims

1. A diamond bead wire saw cutting force measuring device for bidirectional loaded test blocks, characterized in that: include: A three-dimensional platform-type force measuring platform (8) is used to measure the signal values ​​of the tangential sawing force and the normal sawing force; A horizontal three-layer plate pressing machine (10) is fixedly mounted on the three-dimensional platform-type force measuring platform (8), wherein the horizontal three-layer plate pressing machine (10) is axially provided with an axial load control system (11), wherein the axial load control system (11) contains an axial load controller (12); A normal loading control system (13) comprises a hydraulic press (13-3), a left hydraulic press auxiliary plate buckle device (13-2) and a right hydraulic press auxiliary plate buckle device (13-1), wherein the left hydraulic press auxiliary plate buckle device (13-2) and the right hydraulic press auxiliary plate buckle device (13-1) fix the hydraulic press (13-3) directly above the area to be loaded of the horizontal three-layer plate press (10); The diamond beaded wire saw cutting system has a beaded wire saw cutting side located below the loading surface of the normal loading control system (13).

2. The device for measuring sawing force of a bidirectional loaded test block cut by a diamond bead wire saw according to claim 1, characterized in that: One end of the left hydraulic press auxiliary plate buckle device (13-2) and the right hydraulic press auxiliary plate buckle device (13-1) are respectively fixed on both sides of the hydraulic press (13-3), and the other end of the left hydraulic press auxiliary plate buckle device (13-2) and the right hydraulic press auxiliary plate buckle device (13-1) are respectively fixed on the studs of the horizontal three-layer plate pressing machine (10).

3. The device for measuring sawing force of a bidirectional loaded test block cut by a diamond bead wire saw according to claim 1, characterized in that: The diamond beaded wire saw cutting system comprises a driving wheel (2), a driven wheel (4), and a diamond beaded wire saw (3) sleeved on the driving wheel (2) and the driven wheel (4); the driving wheel (2) is electrically connected to a variable speed motor control system (1).

4. The device for measuring sawing force of a bidirectional loaded test block cut by a diamond bead wire saw according to claim 3, characterized in that: The driving wheel (2) and the driven wheel (4) are respectively equipped with a lifting platform control system (6).

5. The device for measuring sawing force of a bidirectional loaded test block cut by a diamond bead wire saw according to claim 3, characterized in that: The diamond bead wire saw (3) is also equipped with a tension adjustment unit (5).

6. The device for measuring sawing force of a bidirectional loaded test block cut by a diamond bead wire saw according to claim 3, characterized in that: The diamond bead wire saw cutting system further comprises at least one fixed pulley (15), wherein the fixed pulley (15) is on the same horizontal plane as the driving wheel (2) and the driven wheel (4), and the diamond bead wire saw (3) is sleeved on the driving wheel (2), the driven wheel (4) and the fixed pulley (15), and the height of the fixed pulley (15) is higher than the normal load control system (13).

7. The device for measuring sawing force of a bidirectional loaded test block cut by a diamond bead wire saw according to claim 6, characterized in that: The diamond beaded wire saw cutting system further comprises two fixed pulleys (15), and the diamond beaded wire saw (3) is sleeved on the driving wheel (2), the driven wheel (4) and the two fixed pulleys (15).

8. The device for measuring sawing force of a bidirectional loaded test block cut by a diamond bead wire saw according to claim 1, characterized in that: It also comprises a sawing force data acquisition system (7), wherein the sawing force data acquisition system (7) is electrically connected to the three-dimensional platform-type force measuring platform (8).

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