TBM rock breaking test device

Abstract

The invention relates to the technical field of rock breaking test devices, and discloses a TBM rock breaking test device which comprises a base, a first supporting plate and a second supporting plate, and the first supporting plate and the second supporting plate are fixedly installed on the two sides of the top end of the base respectively; the device further comprises a displacement mechanism, the displacement mechanism comprises a plurality of sets of second hydraulic rods evenly fixed to the inner side of the first supporting plate, the inner sides of the second hydraulic rods are fixedly connected with a third supporting plate, and the third supporting plate is horizontally and slidably connected with the upper end of the base. The angle adjusting mechanism comprises a plurality of sets of sliding groove openings formed in the inner wall of the third supporting plate in the circumferential direction. Under the action of the angle adjusting mechanism, the angle between the cutter at the top end and a rock block sample can be changed, the sample can be destroyed under the action of the clamping mechanism, data generated by destroy simulation can be summarized, the equipment simulation range is effectively widened, the data diversity is effectively increased, and the test efficiency is improved. And the data contrast analysis is more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of rock breaking test devices, and in particular to a TBM rock breaking test device. Background Art

[0002] The full-face tunnel boring machine (TBM) is a complete set of tunnel construction equipment that integrates mechanical, electrical, hydraulic, sensor and information technology. It is mainly used for tunneling and construction of railways, highways, water conservancy and hydropower diversion tunnels, subways and underground engineering tunnels in rock geological structures. It has the advantages of high construction efficiency, safety and reliability, and high construction quality, and is therefore increasingly widely used at home and abroad.

[0003] Against this background, people invented the TBM rock breaking test device, but the existing TBM rock breaking test device design has certain limitations. Some experimental devices may only conduct simulation experiments on a single vertical angle of the TBM rock breaking test device, making the experimental data obtained by the equipment relatively single, and unable to simulate the different angle changes required for tunnel excavation in actual construction, thereby failing to obtain simulation experimental data under more complex working conditions. Summary of the invention

[0004] In order to solve the technical problem that some TBM experimental devices proposed in the background technology have a relatively simple structural design and can only obtain experimental data of a single excavation angle, thereby resulting in relatively simple experimental data, the present invention provides a TBM rock breaking test device.

[0005] The present invention is implemented by the following technical scheme: a TBM rock breaking test device, comprising a base, a first support plate and a second support plate, wherein the first support plate and the second support plate are respectively fixedly installed on both sides of the top of the base;

[0006] It also includes a displacement mechanism, which includes multiple groups of hydraulic rods 2 uniformly fixed on the inner side of the support plate 1, and the inner sides of the multiple groups of hydraulic rods 2 are fixedly connected with support plates 3, and the support plates 3 are horizontally slidably connected to the upper end of the base;

[0007] Angle adjustment mechanism, the angle adjustment mechanism includes multiple groups of sliding groove openings circumferentially opened on the inner wall of the support plate three, multiple groups of sliding groove openings are connected with sliders in a relatively horizontal sliding manner, multiple groups of sliders are fixedly connected with hydraulic rods three on the inner sides, multiple groups of hydraulic rods three are fixedly connected with hinged rods on the top ends, multiple groups of hinged rods are rotatably connected with hinged sleeve blocks one, multiple groups of hinged sleeve blocks one are fixedly connected with positioning plates on the inner sides, and the inner sides are fixedly connected with positioning rods at the middle parts of multiple groups of support plates three, the top ends of the positioning rods are spherical, and one side of the positioning plate is fixedly connected with a sliding block, and the sliding block is slidably connected with the top end of the positioning rod;

[0008] The propulsion mechanism comprises a plurality of groups of round rods fixedly connected to the inner side of the positioning plate, and the inner sides of the plurality of groups of round rods are fixedly connected to an outer sleeve which is hollow, an inner tube is slidably connected to the outer sleeve, a tool adjustment assembly is arranged in the inner tube, a powerful motor is fixedly connected to the middle part of the inner side of the positioning plate, the powerful motor passes through the bottom end of the outer sleeve and is fixedly connected to a rotating shaft, the powerful motor does not contact the bottom end of the outer sleeve, a sliding groove is symmetrically provided on the top of the outer wall of the rotating shaft, the sliding groove is vertically slidably connected to the bottom end of the inner tube, and a micro-motion assembly is arranged between the outer sleeve and the inner tube.

[0009] Through the above technical scheme, the rock block sample can be destroyed by utilizing the displacement mechanism to promote the cooperation of the propulsion mechanism and the angle adjustment mechanism, and the stress changes caused by the destruction can be collected and recorded by the equipment. The equipment can also produce more changes under the adjustment changes of the angle adjustment mechanism, making the experimental data richer.

[0010] As a further improvement of the above scheme, the tool adjustment assembly includes two groups of hydraulic rods four, the two groups of hydraulic rods four are symmetrically fixedly connected to the bottom end of the inner wall of the inner tube, and the outer ends of the two groups of hydraulic rods four are fixedly connected to movable plates, the outer ends of the movable plates are evenly fixedly connected to multiple groups of articulated sleeve blocks two, the multiple groups of articulated sleeve blocks two are articulated with articulated plates, the outer ends of the multiple groups of articulated plates are articulated with articulated sleeve blocks three, and the multiple groups of articulated plates are arranged to be inclined outward from the articulated sleeve blocks two.

[0011] As a further improvement of the above scheme, the three outer sides of multiple groups of articulated sleeves are rotatably connected to rotating rods, the middle parts of multiple groups of rotating rods are fixedly connected to tools, and the outer ends of multiple groups of tools are rotatably connected to rotating sleeves.

[0012] Through the above technical scheme, by utilizing multiple sets of hinged plates tilted outward, it is possible to realize that when the hydraulic rod is extended and retracted, multiple sets of cutting tools can be synchronously driven to produce angular displacement changes, thereby changing the destruction angle of the rock block sample and providing experimental data at different angles for the experiment.

[0013] As a further improvement of the above scheme, multiple groups of the rotating sleeve blocks are fixedly connected to the outer sides with hinge blocks, multiple groups of the hinge blocks are rotatably connected to hinge sleeve blocks four, multiple groups of the hinge sleeve blocks four are uniformly fixedly connected to the outer ends of the inner tubes, and the outer ends of the inner tubes are fixedly connected with protective plates.

[0014] Through the above technical solution, multiple sets of cutting tools are used to abut against the rock block samples, and the rock block samples can be destroyed by cooperating with the displacement mechanism and driven by a powerful motor. The two ends of the cutting tools are rotatably connected to the hinged sleeve block three and the rotating sleeve block respectively by rotating rods, which ensures the rotation of the cutting tools, and the angle can be adjusted under multi-party articulation.

[0015] As a further improvement of the above solution, the micro-motion assembly includes a support sleeve plate symmetrically fixedly connected to the bottom end of the outer sleeve, and the outer ends of the two groups of support sleeve plates are rotatably connected with balls.

[0016] As a further improvement of the above scheme, a strong spring is elastically connected between the outer sleeve and the inner tube. The strong spring is arranged on the outside of the two groups of support sleeves. One side of the strong spring is rotatably connected to the bottom end of the outer sleeve, and the other side of the outer sleeve is fixedly connected to the bottom end of the inner tube. The outer wall of the bottom end of the inner tube is symmetrically fixedly connected with a hemisphere, and the two groups of hemispheres are in rolling contact with the ball bearings.

[0017] Through the above technical solution, when the inner tube rotates, the strong spring is fixedly connected to the bottom end of the inner tube, and the other end of the strong spring is rotatably connected to the inner wall of the bottom end of the outer sleeve. Therefore, after the ball pushes the hemisphere outward, the cutter can be pushed to reciprocate to destroy the rock block sample, and can be pulled back under the contraction of the strong spring to achieve reciprocating vibration.

[0018] As a further improvement of the above scheme, it also includes a clamping mechanism, which includes side pressure plates symmetrically slidably connected to the top of the base, and two groups of side pressure plates are fitted with the inner sides of the two support plates, and the outer sides of the two groups of side pressure plates are fixedly connected with side rods.

[0019] As a further improvement of the above solution, the top ends of the two groups of side rods are both inclined inwardly and centrally arranged, and guide slots are provided on the top ends of the two groups of side rods.

[0020] As a further improvement of the above scheme, the outer wall of the second support plate is fixedly connected to a hydraulic rod, the top of the hydraulic rod is fixedly connected to a top plate, the inner side of the top plate is fixedly connected to a sliding convex plate, and the inner sides of the sliding convex plate are symmetrically slidably connected in the guide groove.

[0021] As a further improvement of the above solution, a vertical plate is fixedly connected to the middle of the bottom end of the sliding protruding plate, a top pressure plate is fixedly connected to the bottom end of the vertical plate, and sensors are provided on the inner sides of the top pressure plate and the side pressure plates.

[0022] Through the above technical solution, the hydraulic rod can be retracted to realize the synchronous central retraction of the top pressure plate and the side pressure plate under the sliding of the sliding convex plate and the guide groove, and the rock block sample can be compressed and fixed.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] (i) The present invention can change the angle of the top tool and the rock block sample under the action of the angle adjustment mechanism, and destroy the sample under the action of the clamping mechanism, and summarize the data generated by the simulated destruction, which effectively improves the range of equipment simulation, effectively increases the diversity of data, and makes data comparison and analysis more accurate.

[0025] (ii) The present invention utilizes the angle adjustment mechanism in cooperation with the tool adjustment assembly in the propulsion mechanism to further improve the device's ability to destroy rock samples, and enables the device to obtain more experimental data with reference value when conducting experiments.

[0026] (III) The present invention utilizes the cooperation of the micro-motion mechanism, the propulsion mechanism and the tool adjustment assembly to better destroy the rock block sample, improve the rock breaking efficiency and provide data for the optimization and improvement of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the overall structure of a TBM rock breaking test device provided in Example 1 of the present invention;

[0028] Figure 2 For the present invention Figure 1 Schematic diagram of the three-dimensional structure from another perspective;

[0029] Figure 3 It is a schematic structural diagram of a side view section of the present invention;

[0030] Figure 4 It is an exploded schematic diagram of the angle adjustment mechanism structure of the present invention;

[0031] Figure 5 It is a schematic diagram of the structural explosion of the propulsion mechanism of the present invention;

[0032] Figure 6 For the present invention Figure 4 A schematic diagram of the enlarged structure at point A in the middle.

[0033] Description of main symbols:

[0034] 1. Base; 2. Support plate 1; 3. Support plate 2; 4. Hydraulic rod 1; 5. Top plate; 6. Sliding convex plate; 7. Vertical plate; 8. Top pressure plate; 9. Side rod; 10. Guide slot; 11. Side pressure plate; 12. Hydraulic rod 2; 13. Support plate 3; 14. Slide slot; 15. Hydraulic rod 3; 16. Articulated rod; 17. Articulated sleeve block 1; 18. Positioning plate; 19. Round rod; 20. Sliding block; 21. Positioning rod ; 22. Outer sleeve; 23. Powerful spring; 24. Powerful motor; 25. Rotating shaft; 26. Inner tube; 27. Protective plate; 28. Support sleeve; 29. ​​Ball; 30. Hemisphere; 31. Hydraulic rod four; 32. Movable plate; 33. Articulated sleeve two; 34. Articulated plate; 35. Articulated sleeve three; 36. Rotating rod; 37. Cutting tool; 38. Rotating sleeve; 39. Articulated block; 40. Articulated sleeve four. DETAILED DESCRIPTION

[0035] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0036] Example 1: Please combine Figure 1-Figure 6 A TBM rock breaking test device of this embodiment includes a base 1, a support plate 1 2 and a support plate 2 3, wherein the support plate 1 2 and the support plate 2 3 are fixedly installed on both sides of the top of the base 1 respectively.

[0037] It also includes a displacement mechanism, which includes multiple groups of hydraulic rods 2 12 evenly fixed on the inner side of the support plate 1 2, and the inner side of the multiple groups of hydraulic rods 2 12 is fixedly connected with a support plate 3 13, and the support plate 3 13 is horizontally slidably connected to the upper end of the base 1.

[0038] Angle adjustment mechanism, the angle adjustment mechanism includes multiple groups of sliding groove openings 14 circumferentially opened on the inner wall of the support plate three 13, multiple groups of sliding groove openings 14 are connected with sliders in a relatively horizontal sliding manner, multiple groups of sliders are fixedly connected with hydraulic rods three 15 on the inner sides, multiple groups of hydraulic rods three 15 are fixedly connected with hinged rods 16 on the top ends, multiple groups of hinged rods 16 are rotatably connected with hinged sleeves 17, multiple groups of hinged sleeves 17 are fixedly connected with positioning plates 18 on the inner sides, and a positioning rod 21 is fixedly connected at the middle of the multiple groups of support plates three 13 on the inner sides, the top end of the positioning rod 21 is a sphere, and a sliding block 20 is fixedly connected to one side of the positioning plate 18, and the sliding block 20 is slidably connected to the top end of the positioning rod 21.

[0039] The propulsion mechanism includes multiple groups of round rods 19 fixedly connected to the inner side of the positioning plate 18, and the inner sides of the multiple groups of round rods 19 are fixedly connected with an outer sleeve 22 which is hollow. An inner tube 26 is slidably connected inside the outer sleeve 22, and a tool adjustment component is arranged inside the inner tube 26. A powerful motor 24 is fixedly connected to the middle part of the inner side of the positioning plate 18. The powerful motor 24 passes through the bottom end of the outer sleeve 22 and is fixedly connected with a rotating shaft 25. The powerful motor 24 does not contact the bottom end of the outer sleeve 22. A sliding groove is symmetrically provided on the top of the outer wall of the rotating shaft 25. The sliding groove is vertically slidably connected to the bottom end of the inner tube 26, and a micro-motion component is arranged between the outer sleeve 22 and the inner tube 26.

[0040] The implementation principle of a TBM rock breaking test device in the embodiment of the present application is:

[0041] After the rock block sample is fixed and clamped, multiple groups of hydraulic rods 2 12 are used to push the support plate 3 13 to move horizontally, and drive the propulsion mechanism and the angle adjustment mechanism to approach the rock block sample. According to research needs, the propulsion mechanism carried by the entire positioning plate 18 can be adjusted around the sphere at the top of the positioning rod 21 under the telescopic cooperation of multiple groups of hydraulic rods 3 15 to achieve the angle change of the simulation equipment when breaking rocks, and the propulsion mechanism can be used to destroy the rock block sample and obtain experimental data.

[0042] Example 2: Combination Figure 3 and Figure 5 Based on Example 1, this embodiment is further improved in that:

[0043] The tool adjustment assembly includes two groups of hydraulic rods 4 31, and the two groups of hydraulic rods 4 31 are symmetrically fixedly connected to the bottom end of the inner wall of the inner tube 26, and the outer ends of the two groups of hydraulic rods 4 31 are fixedly connected to movable plates 32, and the outer ends of the movable plates 32 are evenly fixedly connected to multiple groups of hinged sleeve blocks 2 33, and the multiple groups of hinged sleeve blocks 2 33 are hinged to hinged plates 34, and the outer ends of the multiple groups of hinged plates 34 are hinged to hinged sleeve blocks 3 35, and the multiple groups of hinged plates 34 are arranged to be inclined outward from the hinged sleeve blocks 2 33.

[0044] The outer sides of the plurality of articulated sleeve blocks 35 are all rotatably connected to rotating rods 36 , the middle parts of the plurality of rotating rods 36 are all fixedly connected to cutting tools 37 , and the outer ends of the plurality of cutting tools 37 are all rotatably connected to rotating sleeve blocks 38 .

[0045] Multiple groups of rotating sleeve blocks 38 are fixedly connected to the outer sides with hinge blocks 39, multiple groups of hinge blocks 39 are rotatably connected to hinge sleeve blocks 40, multiple groups of hinge sleeve blocks 40 are evenly fixedly connected to the outer end of the inner tube 26, and the outer end of the inner tube 26 is fixedly connected to the protective plate 27.

[0046] The implementation principle of a TBM rock breaking test device in the embodiment of the present application is:

[0047] When two groups of hydraulic rods 4 31 are used to synchronously push the movable plate 32 to change its displacement, multiple groups of hinged plates 34 can be respectively hinged with the hinged sleeve blocks 2 33 and the hinged sleeve blocks 3 35 at both ends, and the other end of the rotating rod 36 can be hinged with the hinged sleeve block 4 40 to synchronously drive multiple groups of cutting tools 37 to change their angles, so as to obtain more experimental data for the equipment, and with the cooperation of the angle adjustment mechanism, the equipment can provide data on the destruction of rock blocks at more angles, effectively improving the diversity of data collection of the equipment.

[0048] Example 3: Combination Figure 3 and Figure 5 Based on Example 1 and Example 2, this embodiment is further improved in that:

[0049] The micro-motion assembly includes support sleeves 28 symmetrically fixedly connected to the bottom end of the outer sleeve 22, and the outer ends of the two groups of support sleeves 28 are rotatably connected with balls 29.

[0050] A strong spring 23 is elastically connected between the outer sleeve 22 and the inner tube 26. The strong spring 23 is arranged on the outside of the two groups of supporting sleeves 28. One side of the strong spring 23 is rotatably connected to the bottom end of the outer sleeve 22, and the other side of the outer sleeve 22 is fixedly connected to the bottom end of the inner tube 26. The outer wall of the bottom end of the inner tube 26 is symmetrically fixedly connected with hemispheres 30, and the two groups of hemispheres 30 are in rolling contact with the balls 29.

[0051] The implementation principle of a TBM rock breaking test device in the embodiment of the present application is:

[0052] When the powerful motor 24 is operating, it will be able to drive the inner tube 26 to slide in the outer tube 22, and when the inner tube 26 rotates, it can cooperate with the intermittent rolling contact between the ball 29 and the hemisphere 30, and can shrink under the elastic action of the powerful spring 23, so that the inner tube 26 can move back and forth, and drive multiple groups of tools 37 to perform a crushing experiment on the rock blocks, providing additional assistance for the tools 37 under the driving force of the hydraulic rod 12, thereby accelerating the destructive effect on the rock blocks.

[0053] Example 4: Combination Figure 1-Figure 3 Based on the first, second and third embodiments, this embodiment is further improved in that:

[0054] It also includes a clamping mechanism, which includes side pressure plates 11 symmetrically slidably connected to the top of the base 1, and two groups of side pressure plates 11 are fitted with the inner side of the support plate 2 3, and the outer sides of the two groups of side pressure plates 11 are fixedly connected to side rods 9.

[0055] The top ends of the two groups of side rods 9 are both arranged in a slanted inwardly centered manner, and the top ends of the two groups of side rods 9 are both provided with guide notches 10 .

[0056] The outer wall of the support plate 2 3 is fixedly connected with a hydraulic rod 1 4 , the top of the hydraulic rod 1 4 is fixedly connected with a top plate 5 , the inner side of the top plate 5 is fixedly connected with a sliding convex plate 6 , and the inner sides of the sliding convex plate 6 are symmetrically slidably connected in the guide groove 10 .

[0057] A vertical plate 7 is fixedly connected to the middle of the bottom end of the sliding convex plate 6, and a top pressure plate 8 is fixedly connected to the bottom end of the vertical plate 7. Sensors are arranged on the inner sides of the top pressure plate 8 and the side pressure plate 11.

[0058] The implementation principle of a TBM rock breaking test device in the embodiment of the present application is:

[0059] The rock block of fixed size to be tested is placed in the designated area, and then the hydraulic rod 4 is started to pull the top plate 5 to shrink vertically downward, and the two sets of side pressure plates 11 are connected by sliding protrusions 6 and guide grooves 10, and the two sets of side pressure plates 11 are synchronously pulled to slide horizontally inward to the center, and as the top plate 5 shrinks, the vertical plate 7 can be used to drive the top pressure plate 8 to fix the top of the rock block, so that when conducting the rock breaking experiment, the stress data can be collected, recorded and summarized for analysis in cooperation with the sensor.

[0060] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A TBM rock breaking test device, comprising: A base, a first support plate and a second support plate, wherein the first support plate and the second support plate are respectively fixedly mounted on both sides of the top of the base; It is characterized by further comprising: A displacement mechanism, wherein the displacement mechanism comprises a plurality of groups of hydraulic rods 2 uniformly fixed to the inner side of a support plate 1, and a support plate 3 is fixedly connected to the inner side of the plurality of groups of hydraulic rods 2, and the support plate 3 is horizontally slidably connected to the upper end of the base; Angle adjustment mechanism, the angle adjustment mechanism includes multiple groups of sliding groove openings circumferentially opened on the inner wall of the support plate three, multiple groups of sliding groove openings are connected with sliders in a relatively horizontal sliding manner, multiple groups of sliders are fixedly connected with hydraulic rods three on the inner sides, multiple groups of hydraulic rods three are fixedly connected with hinged rods on the top ends, multiple groups of hinged rods are rotatably connected with hinged sleeve blocks one, multiple groups of hinged sleeve blocks one are fixedly connected with positioning plates on the inner sides, and the inner sides are fixedly connected with positioning rods at the middle parts of multiple groups of support plates three, the top ends of the positioning rods are spherical, and one side of the positioning plate is fixedly connected with a sliding block, and the sliding block is slidably connected with the top end of the positioning rod; The propulsion mechanism comprises a plurality of groups of round rods fixedly connected to the inner side of the positioning plate, and the inner sides of the plurality of groups of round rods are fixedly connected to an outer sleeve which is hollow, an inner tube is slidably connected to the outer sleeve, a tool adjustment assembly is arranged in the inner tube, a powerful motor is fixedly connected to the middle part of the inner side of the positioning plate, the powerful motor passes through the bottom end of the outer sleeve and is fixedly connected to a rotating shaft, the powerful motor does not contact the bottom end of the outer sleeve, a sliding groove is symmetrically provided on the top of the outer wall of the rotating shaft, the sliding groove is vertically slidably connected to the bottom end of the inner tube, and a micro-motion assembly is arranged between the outer sleeve and the inner tube.

2. A TBM rock breaking test device according to claim 1, characterized in that: The tool adjustment assembly includes two groups of hydraulic rods four, the two groups of hydraulic rods four are symmetrically fixedly connected to the bottom end of the inner wall of the inner tube, and the outer ends of the two groups of hydraulic rods four are fixedly connected to movable plates, the outer ends of the movable plates are evenly fixedly connected to multiple groups of articulated sleeve blocks two, the multiple groups of articulated sleeve blocks two are articulated with articulated plates, the outer ends of the multiple groups of articulated plates are articulated with articulated sleeve blocks three, and the multiple groups of articulated plates are arranged to be inclined outward from the articulated sleeve blocks two.

3. A TBM rock breaking test device according to claim 2, characterized in that: The three outer sides of the plurality of articulated sleeve blocks are rotatably connected to rotating rods, the middle parts of the plurality of rotating rods are fixedly connected to cutting tools, and the outer ends of the plurality of cutting tools are rotatably connected to rotating sleeve blocks.

4. A TBM rock breaking test device as claimed in claim 3, characterized in that: Multiple groups of rotating sleeve blocks are fixedly connected to the outside with hinge blocks, multiple groups of hinge blocks are rotatably connected to hinge sleeve blocks four, multiple groups of hinge sleeve blocks four are evenly fixedly connected to the outer end of the inner tube, and the outer end of the inner tube is fixedly connected with a protective plate.

5. A TBM rock breaking test device according to claim 1, characterized in that: The micro-motion assembly comprises a supporting sleeve plate symmetrically fixedly connected to the bottom end of the outer sleeve, and the outer ends of two groups of the supporting sleeve plates are rotatably connected with balls.

6. A TBM rock breaking test device according to claim 5, characterized in that: A strong spring is elastically connected between the outer tube and the inner tube. The strong spring is arranged on the outside of the two groups of supporting sleeves. One side of the strong spring is rotatably connected to the bottom end of the outer tube, and the other side of the outer tube is fixedly connected to the bottom end of the inner tube. A hemisphere is symmetrically fixedly connected to the outer wall of the bottom end of the inner tube, and the two groups of hemispheres are in rolling contact with the ball bearings.

7. A TBM rock breaking test device according to claim 1, characterized in that: It also includes a clamping mechanism, which includes side pressure plates symmetrically slidably connected to the top of the base, and two groups of side pressure plates are fitted with the inner sides of the two support plates, and the outer sides of the two groups of side pressure plates are fixedly connected with side rods.

8. A TBM rock breaking test device according to claim 7, characterized in that: The top ends of the two groups of side rods are both arranged in an inclined manner inwardly and centrally, and the top ends of the two groups of side rods are both provided with guide notches.

9. A TBM rock breaking test device according to claim 7, characterized in that: The outer wall of the second support plate is fixedly connected with a hydraulic rod 1, the top of the hydraulic rod 1 is fixedly connected with a top plate, the inner side of the top plate is fixedly connected with a sliding convex plate, and the inner sides of the sliding convex plate are symmetrically slidably connected in the guide groove.

10. A TBM rock breaking test device according to claim 9, characterized in that: A vertical plate is fixedly connected to the middle of the bottom end of the sliding convex plate, a top pressure plate is fixedly connected to the bottom end of the vertical plate, and sensors are arranged on the inner sides of the top pressure plate and the side pressure plates.

Images