TBM hob rock breaking experiment device

Abstract

The utility model relates to the technical field of TBM hob experiments, and discloses a TBM hob rock breaking experiment device which comprises a machine body, the two sides of the machine body are rotationally connected with lead screws, one ends of the lead screws penetrate through the machine body, the lead screws penetrate through moving blocks and are in threaded connection with the moving blocks, and the moving blocks are in sliding connection with the inner wall of the machine body. The movable block is rotationally connected with a connecting arm rod, one end of the connecting arm rod is rotationally connected with a fixed block, the fixed block is fixedly provided with a protective frame, and the bottom of the protective frame is attached to the machine body. The two protection frames are controlled to be closed towards the center of the device and surround concrete blocks or bed rocks, so that the phenomenon of splashing caused by fragments generated during rock breaking by the hob can be effectively prevented, and the safety of the device during an experiment can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of TBM cutter tests, in particular to a TBM cutter rock-breaking test device. Background Technique

[0002] TBM is an efficient tunnel boring equipment, and the rock-breaking performance of its cutters is directly related to the efficiency and safety of tunnel construction. However, due to the complex actual construction environment, there are many challenges in the performance testing and optimization of TBM cutters. Therefore, it is necessary to conduct rock-breaking tests on TBM cutters to obtain their rock-breaking processes and mechanisms.

[0003] When the existing TBM cutter rock-breaking test device is in use, it controls the cutter to break the concrete or bedrock in the device. However, the device cannot block a large amount of concrete or rock debris generated during the experimental process of the device, which will cause the debris to damage the surrounding area, resulting in a low safety level during the device experiment.

[0004] Therefore, the utility model provides a TBM cutter rock-breaking test device. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a TBM cutter rock-breaking test device, which has the advantage of being able to block the concrete or rock debris generated during the rock-breaking test of the device, and solves the problems raised in the background technique.

[0006] The utility model provides the following technical scheme: A TBM cutter rock-breaking test device includes a body. Both sides of the body are rotatably connected with lead screws, and one end of the lead screw penetrates the body. The lead screw penetrates a moving block and is threadedly connected with the moving block. The moving block is slidably connected with the inner wall of the body. The moving block is rotatably connected with a connecting arm rod. One end of the connecting arm rod is rotatably connected with a fixed block. The fixed block is fixedly installed with a protective frame, and the bottom of the protective frame is in contact with the body.

[0007] Preferably, a driving motor is arranged on the top of the body. The output shaft of the driving motor is fixedly connected with a pulley one. The pulley one is provided with a transmission belt. One end of the transmission belt is provided with a pulley two. The pulley two is coaxially fixedly connected with a threaded rod one. The threaded rod one penetrates the body and is rotatably connected with the body. The threaded rod one penetrates a lifting arm and is threadedly connected with the lifting arm. The lifting arm is provided with a rotating motor. The output shaft of the rotating motor is fixedly installed with a cutter.

[0008] Preferably, one end of the first threaded rod is coaxially and fixedly connected with a first rotating gear, the first rotating gear meshes with a second rotating gear, the second rotating gear is coaxially and fixedly connected with a worm, and the worm is rotatably connected to the machine body. One end of the worm meshes with a worm gear, the worm gear is coaxially and fixedly connected with a rotating shaft, and the rotating shaft is rotatably connected to the machine body.

[0009] Preferably, both ends of the rotating shaft are coaxially and fixedly connected with first bevel gears, the first bevel gears mesh with second bevel gears, and the second bevel gears are coaxially and fixedly connected with one end of the lead screw.

[0010] Preferably, the machine body is fixedly installed with a fixed ring, the fixed ring is rotatably connected with a rotating ring, the top of the fixed ring is rotatably connected with a rotating arm rod, the rotating arm rod is fixedly connected with a connecting shaft, and one end of the connecting shaft is fixedly connected with the top of the rotating ring.

[0011] Preferably, the top of the fixed ring is rotatably connected with a rotating block, the rotating block is rotatably connected to a second threaded rod, the second threaded rod penetrates through the connecting block and is threadedly connected to the connecting block, and one end of the connecting block is fixedly connected with the top of the rotating ring.

[0012] Preferably, the material of the protective frame is high-strength steel.

[0013] Preferably, the number of the connecting arm rods is four, and every two of the connecting arm rods form a group.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. When the TBM cutter rock-breaking experimental device is in use, first place the prepared concrete block or bedrock at the center of the rotating ring, and then drive the second threaded rod to rotate through an external power source, so as to control the movement of the connecting block. During the movement of the connecting block, the rotating ring will be driven to rotate, so that one end of the three rotating arm rods moves towards the center of the rotating ring, so that the clamping rollers at one end of the rotating arm rods can fix and clamp the concrete block or bedrock. By rotating the output shaft of the driving motor, the first belt pulley can be effectively controlled to rotate. Then, under the cooperation of the transmission belt and the second belt pulley, the first threaded rod can be effectively controlled to rotate, so that the lifting arm threadedly connected with the first threaded rod moves downward along the track of the first threaded rod, so that the cutter driven by the rotating motor can break the concrete block or bedrock.

[0016] 2. The TBM hob rock-breaking experimental device drives the first rotating gear to rotate while the first threaded rod rotates, thereby controlling the second rotating gear meshing with it and the worm coaxial and fixedly connected to the second rotating gear to rotate. In this way, the worm gear meshing with one end of the first threaded rod is driven to rotate, and the rotating shaft coaxial and fixedly connected to the worm gear and the first bevel gears at both ends of the rotating shaft are controlled to rotate, thereby driving the second bevel gear meshing with the first bevel gear to rotate. In this way, the two lead screws are driven to rotate, and with the cooperation of the moving blocks threadedly connected to the lead screws, the connecting arm rods are extended to control the two protective frames to close, thereby preventing the flying of broken stones during the device experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the device of the present utility model;

[0018] Figure 2 For the present utility model Figure 1 is a schematic side view structure diagram;

[0019] Figure 3 For the present utility model Figure 1 is a partial structure;

[0020] Figure 4 For the present utility model Figure 2 is an enlarged structure diagram at position A in the present utility model;

[0021] Figure 5 For the present utility model Figure 2 is an enlarged structure diagram at position B in the present utility model.

[0022] In the figure: 1. Machine body; 2. Lead screw; 3. Moving block; 4. Connecting arm rod; 5. Fixed block; 6. Protective frame; 7. First threaded rod; 8. Lifting arm; 9. Rotating motor; 10. Hob; 11. Driving motor; 12. First pulley; 13. Transmission belt; 14. Second pulley; 15. First rotating gear; 16. Second rotating gear; 17. Worm; 18. Worm gear; 19. Rotating shaft; 20. First bevel gear; 21. Second bevel gear; 22. Fixed ring; 23. Rotating ring; 24. Rotating block; 25. Second threaded rod; 26. Connecting block; 27. Rotating arm rod; 28. Connecting shaft. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer toFigures 1-5 , a TBM cutter rock-breaking experimental device, including a machine body 1. Both sides of the machine body 1 are rotatably connected with screw rods 2, and one end of the screw rod 2 penetrates through the machine body 1. The screw rod 2 penetrates through a moving block 3 and is threadedly connected with the moving block 3. The moving block 3 is slidably connected with the inner wall of the machine body 1. The moving block 3 is rotatably connected with a connecting arm rod 4. One end of the connecting arm rod 4 is rotatably connected with a fixing block 5. The fixing block 5 is fixedly installed with a protective frame 6, and the bottom of the protective frame 6 is attached to the machine body 1. When the device conducts an experiment, while the cutter 10 in the device descends, the two protective frames 6 will move towards the center of the device, thereby carrying out closing protection on the concrete block or bedrock placed in the device, and further preventing the fragments generated when the cutter 10 breaks the rock from splashing out.

[0025] Among them; a driving motor 11 is arranged on the top of the machine body 1. The output shaft of the driving motor 11 is fixedly connected with a pulley one 12. A transmission belt 13 is arranged on the pulley one 12. One end of the transmission belt 13 is provided with a pulley two 14. The pulley two 14 is coaxially fixedly connected with a threaded rod one 7, and the threaded rod one 7 penetrates through the machine body 1 and is rotatably connected with the machine body 1. The threaded rod one 7 penetrates through a lifting arm 8 and is threadedly connected with the lifting arm 8. A rotating motor 9 is arranged on the lifting arm 8. The output shaft of the rotating motor 9 is fixedly installed with a cutter 10.

[0026] Among them; one end of the threaded rod one 7 is coaxially fixedly connected with a rotating gear one 15. The rotating gear one 15 meshes with a rotating gear two 16. The rotating gear two 16 is coaxially fixedly connected with a worm 17, and the worm 17 is rotatably connected with the machine body 1. One end of the worm 17 meshes with a worm gear 18. The worm gear 18 is coaxially fixedly connected with a rotating shaft 19, and the rotating shaft 19 is rotatably connected with the machine body 1.

[0027] Among them; both ends of the rotating shaft 19 are coaxially fixedly connected with bevel gears one 20. The bevel gears one 20 mesh with bevel gears two 21. The bevel gears two 21 are coaxially fixedly connected with one end of the screw rod 2.

[0028] Among them; the machine body 1 is fixedly installed with a fixed ring 22. The fixed ring 22 is rotatably connected with a rotating ring 23. The top of the fixed ring 22 is rotatably connected with a rotating arm rod 27. The rotating arm rod 27 is fixedly connected with a connecting shaft 28, and one end of the connecting shaft 28 is fixedly connected with the top of the rotating ring 23.

[0029] Among them; the top of the fixed ring 22 is rotatably connected with a rotating block 24. The rotating block 24 is rotatably connected with a threaded rod two 25. The threaded rod two 25 penetrates through a connecting block 26 and is threadedly connected with the connecting block 26. One end of the connecting block 26 is fixedly connected with the top of the rotating ring 23.

[0030] In some more specific embodiments, even though the driving mechanism for driving the second threaded rod 25 is not shown in the drawings of the present application, those skilled in the art should know that a driving motor can be installed on the side of the rotating block 24 at the end of the second threaded rod 5 to achieve the rotation of the second threaded rod 25.

[0031] Among them, the material of the protective frame 6 is high-strength steel. High-strength steel has a relatively high strength. Under the same strength, a high-strength steel plate that is only thinner than a normal steel plate can achieve the required effect, so as to achieve the effect of weight reduction, and its cost has a greater advantage.

[0032] Among them, the number of connecting arm rods 4 is four, and every two connecting arm rods 4 form a group.

[0033] Working principle: When in use, first place the prepared concrete block or bedrock at the center of the rotating ring 23, and then drive the second threaded rod 25 to rotate through an external power source, so as to control the movement of the connecting block 26. And during the movement of the connecting block 26, it will drive the rotating ring 23 to rotate, so that one end of the three rotating arm rods 27 moves towards the center of the rotating ring 23, so that the clamping rollers at one end of the rotating arm rod 27 can fixedly clamp the concrete block or bedrock. By the rotation of the output shaft of the driving motor 11, the first belt pulley 12 can be effectively controlled to rotate. Then, under the cooperation of the transmission belt 13 and the second belt pulley 14, the first threaded rod 7 can be effectively controlled to rotate, so that the lifting arm 8 threadedly connected to the first threaded rod 7 moves downward along the track of the first threaded rod 7, so that the hob 10 driven by the rotating motor 9 can crush the concrete block or bedrock. At the same time, during the process of controlling the lowering of the lifting arm 8, when the first threaded rod 7 rotates, it will drive the first rotating gear 15 to rotate, so as to control the second rotating gear 16 meshing with it and the worm 17 fixedly connected coaxially with the second rotating gear 16 to rotate, so as to drive the worm gear 18 meshing with one end of the first threaded rod 7 to rotate, and control the rotating shaft 19 fixedly connected coaxially with the worm gear 18 and the first bevel gears 20 at both ends of the rotating shaft 19 to rotate, so as to drive the second bevel gear 21 meshing with the first bevel gear 20 to rotate, so as to drive the two lead screws 2 to rotate. And under the cooperation of the moving block 3 threadedly connected to the lead screw 2, the connecting arm rod 4 performs an extending movement to control the two protective frames 6 to close, so as to prevent the flying of crushed stones during the experiment of the device.

[0034] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A TBM cutter rock breaking experimental device, characterized in that: The invention comprises an organic body (1), both sides of the organic body (1) are rotatably connected with screw rods (2), and one end of the screw rod (2) passes through the organic body (1), the screw rod (2) passes through a moving block (3) and is threadedly connected to the moving block (3), the moving block (3) is slidably connected to the inner wall of the organic body (1), the moving block (3) is rotatably connected to a connecting arm rod (4), one end of the connecting arm rod (4) is rotatably connected to a fixed block (5), the fixed block (5) is fixedly installed with a protective frame (6), and the bottom of the protective frame (6) is in contact with the organic body (1).

2. A TBM rock-breaking experimental device according to claim 1, characterized in that: A driving motor (11) is arranged at the top of the machine body (1), the output shaft of the driving motor (11) is fixedly connected to a pulley 1 (12), the pulley 1 (12) is provided with a transmission belt (13), one end of the transmission belt (13) is provided with a pulley 2 (14), the pulley 2 (14) is coaxially fixedly connected with a threaded rod 1 (7), the threaded rod 1 (7) passes through the machine body (1) and is rotatably connected to the machine body (1), the threaded rod 1 (7) passes through the lifting arm (8) and is threadedly connected to the lifting arm (8), the lifting arm (8) is provided with a rotating motor (9), and a roller (10) is fixedly installed on the output shaft of the rotating motor (9).

3. A TBM rock-breaking experimental device according to claim 2, characterized in that: One end of the threaded rod (7) is coaxially fixedly connected to a rotating gear (15), the rotating gear (15) is meshed with a rotating gear (16), the rotating gear (16) is coaxially fixedly connected to a worm (17), and the worm (17) is rotationally connected to the machine body (1), one end of the worm (17) is meshed with a worm wheel (18), the worm wheel (18) is coaxially fixedly connected to a rotating shaft (19), and the rotating shaft (19) is rotationally connected to the machine body (1).

4. A TBM cutter rock breaking experimental device according to claim 3, characterized in that: Both ends of the rotating shaft (19) are coaxially fixedly connected with a bevel gear 1 (20), the bevel gear 1 (20) is meshed with a bevel gear 2 (21), and the bevel gear 2 (21) is coaxially fixedly connected with one end of the screw rod (2).

5. The TBM rock-breaking experimental device according to claim 1, characterized in that: The machine body (1) is fixedly mounted with a fixed circular ring (22), the fixed circular ring (22) is rotatably connected to a rotating circular ring (23), the top of the fixed circular ring (22) is rotatably connected to a rotating arm (27), the rotating arm (27) is fixedly connected to a connecting shaft (28), and one end of the connecting shaft (28) is fixedly connected to the top of the rotating circular ring (23).

6. A TBM cutter rock breaking experimental device according to claim 5, characterized in that: The top of the fixed ring (22) is rotatably connected to a rotating block (24), the rotating block (24) is rotatably connected to a second threaded rod (25), the second threaded rod (25) passes through a connecting block (26) and is threadedly connected to the connecting block (26), and one end of the connecting block (26) is fixedly connected to the top of the rotating ring (23).

7. The TBM rock-breaking experimental device according to claim 1, characterized in that: The material of the protection frame (6) is high-strength steel.

8. The TBM cutter rock breaking experimental device according to claim 1, characterized in that: The number of the connecting arm rods (4) is four, and every two connecting arm rods (4) form a group.

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