Shield tunneling machine hob abrasion testing machine

Abstract

The utility model relates to the technical field of shield tunneling machines, and discloses a shield tunneling machine hob abrasion testing machine which is characterized in that the top of a base is fixedly provided with two symmetrically arranged vertical plates, a sliding rod is fixedly arranged between the two vertical plates, the outer side of the sliding rod is slidably provided with two symmetrically arranged clamping plates, and the clamping plates are fixedly arranged on the base. A lead screw sleeve is embedded in the clamping plate, a lead screw shaft is in threaded connection with the interior of the lead screw sleeve, one end of the lead screw shaft is fixedly connected with the output end of a motor, and the motor is fixedly installed on the side face of the vertical plate; the motor is used for driving the lead screw shaft to rotate, the lead screw shaft drives the two clamping plates to be close to each other, the two clamping shells can clamp the body of the hob, and it is guaranteed that the hob cannot synchronously rotate along with the grinding wheel; then lateral pushing on the push plate is released, the springs push the sliding blocks to be inserted into the positions above the hob shaft of the hob, the hob shaft of the hob is locked after the two sliding blocks are in butt joint, and it is guaranteed that the two ends of the hob cannot jump up to hurt people when the hob is in an abrasion test.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine technology, specifically a tunnel boring machine cutter wear testing machine. Background Technology

[0002] One testing method of the tunnel boring machine cutter wear tester is to first clamp and position the cutter, and then use a moving mechanism to push the test roller to squeeze the cutter for wear testing.

[0003] Conventionally, a servo motor is used to drive a roller shaft to perform contact grinding on the cutter. However, during the grinding process, the cutter is not fixed tightly, causing the grinding roller shaft to rotate synchronously with the cutter. This results in inaccurate wear testing. In addition, the cutter is also prone to jumping up due to centrifugal force, posing a significant safety hazard. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a tunnel boring machine cutter wear testing machine, which has the advantage of secure cutter installation and solves the aforementioned problems.

[0006] (II) Technical Solution

[0007] To achieve the above-mentioned purpose of securely installing the cutter head, this utility model provides the following technical solution: a cutter head wear testing machine for tunnel boring machines, including a base, two symmetrically arranged vertical plates fixedly installed on the top of the base, a sliding rod fixedly installed between the two vertical plates, two symmetrically arranged clamping plates slidably installed on the outer side of the sliding rod, a screw sleeve embedded inside the clamping plate, a screw shaft threaded inside the screw sleeve, one end of the screw shaft fixedly connected to the output end of a motor, and the motor fixedly installed on the side of the vertical plate;

[0008] A clamping shell is fixedly installed on the side of the clamping plate. A groove is formed on the top of the clamping shell and the clamping plate. A roller cutter is placed inside the groove. A sliding groove is formed on the top of the clamping plate. A semi-circular limiting plate is fixedly installed at the opening end of the sliding groove. A slider is slidably installed inside the sliding groove. A spring is provided on one side of the slider. A push plate is fixedly installed on the top of the slider.

[0009] Preferably, a protective shell is fixedly installed on the top of the base, a smoking machine is fixedly installed on the top of the protective shell, and a transparent door is hinged to the front of the protective shell.

[0010] Preferably, vertical electric slides are fixedly installed on both sides of the top of the base, a horizontal electric slide is fixedly installed at the output end of the vertical electric slide, a support is fixedly installed at the output end of the horizontal electric slide, a grinding wheel is rotatably installed inside the support, the shaft of the grinding wheel is fixedly connected to the output end of the servo motor, and the servo motor is fixedly connected to the support.

[0011] Preferably, the top of one end of the slider has an inclined surface, and the other end of the slider below the inclined surface has a curved surface that is adapted to the surface of the cutter shaft of the hob. The bottom of the slider has a groove corresponding to the semi-circular limiting plate.

[0012] Preferably, the cutter shaft of the hob is detachably mounted to the clamping plate via a slider and a spring.

[0013] Preferably, a partition plate is fixedly installed in the middle section of the lead screw shaft, and the outer side of the lead screw shaft is provided with opposite threaded grooves on the left and right sides with the partition plate as the midpoint.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, this utility model provides a shield machine cutter wear testing machine, which has the following advantages:

[0016] 1. The shield tunneling machine cutter wear testing machine first places the cutter between two clamps. The motor drives the lead screw shaft to rotate, which drives the two clamps to move closer together. The two clamps then clamp the cutter body, ensuring that the cutter does not rotate synchronously with the grinding wheel. Then, the side push of the push plate is released, and the spring pushes the slider to insert above the cutter shaft. After the two sliders are engaged, they lock the cutter shaft, ensuring that the ends of the cutter will not jump up and injure people during the wear test.

[0017] 2. This tunnel boring machine cutter wear testing machine has a protective shell on the base to ensure that sparks will not splash out and injure people during the wear test; a transparent door is hinged to the front of the protective shell to facilitate observation of the cutter wear during the wear test; and a smoke extraction machine is connected to the top of the protective shell to facilitate the extraction and filtration of the exhaust gas during the wear test. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the vertical plate, clamping plate and hobbing cutter of this utility model;

[0021] Figure 4This is an exploded structural diagram of the clamping plate, clamping shell, and hob of this utility model;

[0022] Figure 5 This is an exploded structural diagram of the clamping plate, slider, and push plate of this utility model;

[0023] Figure 6 This is a schematic diagram of the slider, spring, and push plate of this utility model.

[0024] In the diagram: 1. Base; 2. Protective shell; 3. Smoke extractor; 4. Transparent door; 5. Vertical electric slide; 6. Horizontal electric slide; 7. Support; 8. Grinding wheel; 9. Servo motor; 10. Vertical plate; 11. Slide rod; 12. Clamping plate; 13. Lead screw shaft; 14. Lead screw sleeve; 15. Motor; 16. Clamping shell; 17. Hob; 18. Slide groove; 19. Semicircular limiting plate; 20. Slider; 21. Spring; 22. Push plate. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 A tunnel boring machine cutter wear testing machine includes a base 1, a protective shell 2 fixedly installed on the top of the base 1 to prevent wear sparks from splashing; a smoke extractor 3 fixedly installed on the top of the protective shell 2 to extract wear fumes; and a transparent door 4 hinged to the front of the protective shell 2 for observing the internal wear condition.

[0027] Please see Figure 2 Vertical electric slides 5 are fixedly installed on both sides of the top of the base 1, used to drive the grinding wheel 8 to adjust its up and down position. A horizontal electric slide 6 is fixedly installed at the output end of the vertical electric slide 5, used to drive the grinding wheel 8 to adjust its left and right position. A support 7 is fixedly installed at the output end of the horizontal electric slide 6, and the grinding wheel 8 is rotatably mounted inside the support 7. The shaft of the grinding wheel 8 is fixedly connected to the output end of the servo motor 9, and the servo motor 9 is fixedly connected to the support 7. The servo motor 9 can drive the grinding wheel 8 to rotate.

[0028] Please see Figure 3Two symmetrically arranged vertical plates 10 are fixedly installed on the top of the base 1. A slide rod 11 is fixedly installed between the two vertical plates 10. Two symmetrically arranged clamping plates 12 are slidably installed on the outside of the slide rod 11. A lead screw sleeve 14 is embedded inside the clamping plate 12. A lead screw shaft 13 is threadedly connected inside the lead screw sleeve 14. A partition plate is fixedly installed in the middle section of the lead screw shaft 13. The outer side of the lead screw shaft 13 has threaded grooves with opposite threads on the left and right sides with the partition plate as the center point. One end of the lead screw shaft 13 is fixedly connected to the output end of the motor 15. The motor 15 is fixedly installed on the side of the vertical plate 10. The motor 15 drives the lead screw shaft 13 to rotate, and then the two lead screw sleeves 14 move closer to each other or separate, thereby ensuring that the two clamping plates 12 move closer to each other or separate.

[0029] Please see Figure 4-6 A clamping shell 16 is fixedly installed on the side of the clamping plate 12. The clamping shell 16 and the top of the clamping plate 12 are provided with a groove. A hob 17 is placed inside the groove. The cross-section of the groove is square to ensure that the cutter shaft of the hob 17 will not rotate. A sliding groove 18 is provided on the top of the clamping plate 12. A semi-circular limiting plate 19 is fixedly installed at the open end of the sliding groove 18.

[0030] Please see Figure 4-6 A slider 20 is slidably mounted inside the slide groove 18. One end of the slider 20 has a sloping top, and another end of the slider 20, below the sloping top, has a curved surface that matches the surface of the cutter shaft of the hob 17. The bottom of the slider 20 has a groove corresponding to the semi-circular limiting plate 19. A spring 21 is provided on one side of the slider 20, and a push plate 22 is fixedly mounted on the top of the slider 20. The cutter shaft of the hob 17 is detachably mounted to the clamping plate 12 via the slider 20 and the spring 21.

[0031] Working principle: When in use, the hob 17 is first placed between the two clamps 16. The motor 15 drives the lead screw 13 to rotate. The lead screw 13 drives the two clamps 12 to move closer to each other. The two clamps 16 will clamp the body of the hob 17, ensuring that the hob 17 will not rotate synchronously with the grinding wheel 8.

[0032] Then release the side push of the push plate 22, and the spring 21 will push the slider 20 to insert above the cutter shaft of the hob 17. After the two sliders 20 are connected, they will lock the cutter shaft of the hob 17, ensuring that the two ends of the hob 17 will not jump up and injure people during the wear test.

[0033] By setting a protective shell 2 on the base 1, it is ensured that sparks will not be splashed out and cause injury during the wear test; a transparent door 4 is hinged to the front of the protective shell 2, which makes it convenient to observe the wear of the roller cutter 17 during the wear test; a smoke extractor 3 is connected to the top of the protective shell 2, which makes it convenient to extract and filter the smoke produced during the wear test.

[0034] The vertical electric slide 5 can drive the horizontal electric slide 6 to move up and down, thereby adjusting the up and down position of the grinding wheel 8; the horizontal electric slide 6 can drive the grinding wheel 8 to move left and right; the servo motor 9 can drive the grinding wheel 8 to rotate, and then the grinding wheel 8 will grind the hob 17. Based on the rotation speed of the grinding wheel 8 and the difference between the starting wear time of the hob 17 and the time when the hob 17 shows wear marks, the wear data of the hob 17 can be easily obtained.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shield tunneling machine cutter wear testing machine, comprising a base (1), characterized in that: Two symmetrically arranged vertical plates (10) are fixedly installed on the top of the base (1). A slide rod (11) is fixedly installed between the two vertical plates (10). Two symmetrically arranged clamping plates (12) are slidably installed on the outside of the slide rod (11). A lead screw sleeve (14) is embedded inside the clamping plate (12). A lead screw shaft (13) is threaded inside the lead screw sleeve (14). One end of the lead screw shaft (13) is fixedly connected to the output end of the motor (15). The motor (15) is fixedly installed on the side of the vertical plate (10). A clamping shell (16) is fixedly installed on the side of the clamping plate (12). The clamping shell (16) and the top of the clamping plate (12) are provided with grooves. A hobbing cutter (17) is placed inside the grooves. A sliding groove (18) is provided on the top of the clamping plate (12). A semi-circular limiting plate (19) is fixedly installed at the opening end of the sliding groove (18). A slider (20) is slidably installed inside the sliding groove (18). A spring (21) is provided on one side of the slider (20). A push plate (22) is fixedly installed on the top of the slider (20).

2. The shield machine cutterhead wear testing machine according to claim 1, characterized in that: A protective shell (2) is fixedly installed on the top of the base (1), a smoking machine (3) is fixedly installed on the top of the protective shell (2), and a transparent door (4) is hinged to the front of the protective shell (2).

3. The shield machine cutterhead wear testing machine according to claim 1, characterized in that: Vertical electric slides (5) are fixedly installed on both sides of the top of the base (1). A horizontal electric slide (6) is fixedly installed at the output end of the vertical electric slide (5). A support (7) is fixedly installed at the output end of the horizontal electric slide (6). A grinding wheel (8) is rotatably installed inside the support (7). The shaft of the grinding wheel (8) is fixedly connected to the output end of the servo motor (9). The servo motor (9) is fixedly connected to the support (7).

4. The shield machine cutterhead wear testing machine according to claim 1, characterized in that: The top of one end of the slider (20) is provided with an inclined surface, and the bottom of the slider (20) and below the inclined surface is provided with a curved surface, which is adapted to the surface of the cutter shaft of the hob (17). The bottom of the slider (20) is provided with a groove corresponding to the semi-circular limiting plate (19).

5. The shield machine cutterhead wear testing machine according to claim 1, characterized in that: The cutter shaft of the hob (17) is detachably mounted to the clamp (12) via a slider (20) and a spring (21).

6. The shield machine cutterhead wear testing machine according to claim 1, characterized in that: A partition plate is fixedly installed in the middle section of the lead screw shaft (13), and the outer side of the lead screw shaft (13) is provided with threaded grooves with opposite threads on the left and right sides with the partition plate as the midpoint.

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