Hardness detection device for cutter of shield tunneling machine

Abstract

The utility model discloses a shield tunneling machine cutter hardness detection device, and relates to the technical field of cutter hardness detection, the shield tunneling machine cutter hardness detection device comprises a workbench, the middle side of the rear end of the workbench is fixedly connected with an L-shaped frame plate, and the middle side of the top of the transverse surface of the L-shaped frame plate is fixedly connected with a hydraulic telescopic cylinder; the output end of the hydraulic telescopic cylinder penetrates to the bottom of the L-shaped frame plate and is fixedly connected with a detection head, the top of the workbench is fixedly connected with sliding rails through four extension plates, protection assemblies are arranged at the tops of the left sliding rail and the right sliding rail, and fixing assemblies are arranged at the left end and the right end of each protection assembly respectively. A detection assembly is arranged on the middle side of the top of the workbench. The first protective cover and the second protective cover are combined in a magnetic attraction mode, the cutter is surrounded and protected, and the output end of the hydraulic telescopic cylinder drives the detection head to detect the hardness of the cutter through the communicating grooves formed in the tops of the first protective cover and the second protective cover.

Description

Technical Field

[0001] The utility model relates to the technical field of tool hardness detection, in particular to a tool hardness detection device for a shield machine. Background Art

[0002] A shield machine is a tunnel boring machine that uses the shield method. It is primarily used in tunneling for infrastructure projects such as railways, highways, subways, and water conservancy projects. It is therefore known as the "steel pangolin," "underwater aircraft carrier," and "king of the world's engineering machinery." The shield machine's high degree of automation saves manpower and accelerates construction. Manual tunneling can be dangerous. The shield machine relies on cutters on the cutterhead to excavate the soil. During the production process of shield cutters, hardness testing of the cutters is required. Existing technologies have the following problems:

[0003] In the existing shield machine tool hardness test, there is no additional protection device. When the test tool breaks, the broken tool debris can easily injure the tester. Secondly, the existing shield machine tool hardness test device is not easy to adjust flexibly, has a small scope of application, and is not convenient for hardness testing of multiple positions of the shield machine tool. Utility Model Content

[0004] The utility model provides a shield machine cutter hardness detection device to solve the problems existing in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A shield machine tool hardness detection device comprises a workbench, an L-shaped frame plate is fixedly connected to the middle side of the rear end of the workbench, a hydraulic telescopic cylinder is fixedly connected to the middle side of the top of the transverse surface of the L-shaped frame plate, the output end of the hydraulic telescopic cylinder passes through the bottom of the L-shaped frame plate and is fixedly connected to a detection head, the front and rear sides of the left and right ends of the workbench are respectively fixedly connected to extension plates, the top of the workbench is fixedly connected to slide rails through four extension plates, and the tops of the left and right slide rails are provided with protective components, the left and right ends of the protective components are respectively provided with fixed components, and one end of the opposite surface of the fixed components passes through the interior of the protective component, and a detection component is provided on the middle side of the top of the workbench.

[0007] A further improvement of the technical solution of the present utility model is that: the protective component includes a protective cover 1 and a protective cover 2, and the front ends of the protective cover 1 and the protective cover 2 are both provided with a visual window, and the middle sides of the bottoms of the protective cover 1 and the protective cover 2 are provided with movable grooves that pass through inside and outside, and the front and rear sides of the protective cover 1 and the protective cover 2 near the movable groove are respectively fixedly connected with slides, and the left and right sides of the protective cover 1 near the end of the protective cover 2 are respectively provided with positioning grooves, and the left and right sides of the protective cover 2 near the end of the protective cover 1 are respectively fixedly connected with iron blocks matching the positioning grooves, and the middle sides of the tops of the protective cover 1 and the protective cover 2 are provided with connecting grooves that pass through inside and outside, and the opposite surfaces of the protective cover 1 and the protective cover 2 near the visual window are fixedly connected with handles.

[0008] A further improvement of the technical solution of the present utility model is that: the outer wall of the slide is slidably connected to the inside of the slide rail, the adjacent ends of the protective cover one and the protective cover two are engaged, the outer wall of the iron block is engaged with the inside of the positioning groove, and the detection head passes through the connecting groove to the inside of the protective cover one and the protective cover two.

[0009] A further improvement of the technical solution of the present invention is that: the inner walls of the two positioning grooves are fixedly connected with magnet blocks, and one end of the iron block is magnetically connected to the surface of the magnet block.

[0010] A further improvement of the technical solution of the present utility model is that: the fixing assembly includes an electric telescopic rod, a splint and a plurality of rubber strips, the output end of the electric telescopic rod passes through the interior of the protective cover and is fixedly connected to the middle part of the splint, and one end of the plurality of rubber strips is fixedly connected in an equidistant array to the end of the splint away from the electric telescopic rod.

[0011] A further improvement of the technical solution of the present utility model is that the ends of the protective cover 1 and the protective cover 2 that are away from each other are fixedly connected to a fixed sleeve, one side of the outer wall of the electric telescopic rod is fixedly connected to the inside of the fixed sleeve, and the bottom of the splint overlaps the upper surface of the workbench.

[0012] The cam is secured to the bottom of the workbench and is secured to a position 400 meters high and securely mounted on either side of the workbench bottom.

[0013] A further improvement of the technical solution of the present invention is that the adjacent ends of the two return springs are fixedly connected to the left and right ends of the moving block respectively, and the ends of the two return springs that are away from each other are fixedly connected to the inner wall of the connecting groove.

[0014] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0015] 1. The utility model provides a shield machine tool hardness testing device, which adopts the cooperation between a workbench, an L-shaped frame plate, a hydraulic telescopic cylinder, a detection head, an extension plate, a slide rail and a protective component. The protective cover 1 and the protective cover 2 in the protective component are opened and closed along the slide rail through a slide plate. After the tool is placed on the detection component, the protective cover 1 and the protective cover 2 are combined by magnetic attraction to surround and protect the tool. The output end of the hydraulic telescopic cylinder drives the detection head to perform hardness testing on the tool through the connecting groove opened on the top of the protective cover 1 and the protective cover 2. This solves the problem of the existing shield machine tool hardness testing that when the detection tool breaks, the broken tool debris is easy to injure the detection personnel due to the lack of additional protection devices. This achieves the beneficial effect of all-round protection of the shield machine tool under detection and ensuring the safety of the detection personnel's operation.

[0016] 2. The utility model provides a shield machine tool hardness detection device, which adopts the cooperation between a workbench, a fixed component and a detection component. After the tool is placed on the detection component, the tool is clamped and positioned by operating the fixed components on both sides, and the tool is moved back and forth so that the detection head can perform hardness detection on multiple positions of the tool. This solves the problems of the existing shield machine tool hardness detection device being difficult to adjust flexibly, having a small scope of application, and being inconvenient to perform hardness detection on multiple positions of the shield machine tool, and achieves the beneficial effect of facilitating hardness detection on multiple positions of the shield machine tool and expanding the scope of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the shield machine tool hardness detection device of the present utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the protective component of the present utility model;

[0019] Figure 3 It is a partially enlarged schematic diagram of the three-dimensional structure A of the present utility model;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the fixing component of the present utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the detection component of the present utility model.

[0022] In the figure: 1. Workbench; 101. Connecting groove; 102. Limiting groove; 2. L-shaped frame; 3. Hydraulic telescopic cylinder; 4. Detection head; 5. Extension plate; 6. Slide rail; 7. Protection assembly; 71. Protective cover 1; 710. Positioning groove; 72. Protective cover 2; 73. Visual window; 74. Slide plate; 75. Iron block; 76. Connecting groove; 77. Handle; 78. Movable groove; 79. Magnet block; 8. Fixing assembly; 81. Electric telescopic rod; 82. Clamp; 83. Rubber strip; 9. Detection assembly; 91. Mounting box; 92. Pressure sensor; 93. Moving block; 94. Slide bar; 95. Reset spring; 96. Slider; 10. Fixed sleeve. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods:

[0024] like Figure 1 As shown, the utility model provides a shield machine tool hardness detection device, including a workbench 1, an L-shaped frame plate 2 is fixedly connected to the middle side of the rear end of the workbench 1, a hydraulic telescopic cylinder 3 is fixedly connected to the middle side of the top of the transverse surface of the L-shaped frame plate 2, the output end of the hydraulic telescopic cylinder 3 passes through the bottom of the L-shaped frame plate 2 and is fixedly connected to a detection head 4, the front and rear sides of the left and right ends of the workbench 1 are respectively fixedly connected to extension plates 5, the top of the workbench 1 is fixedly connected to slide rails 6 through four extension plates 5, and the tops of the left and right slide rails 6 are provided with protective components 7, the left and right ends of the protective component 7 are respectively provided with fixing components 8, and one end of the opposite surface of the fixing component 8 passes through the interior of the protective component 7, and a detection component 9 is provided on the middle side of the top of the workbench 1;

[0025] An extension plate 5, a slide rail 6, a protective component 7, a fixed component 8 and a detection component 9 are provided. Through the coordinated operation between the extension plate 5, the slide rail 6 and the protective component 7 of the workbench 1, the protective cover 1 71 and the protective cover 2 72 are opened and closed along the slide rail 6, so as to facilitate the protection of the tool to be detected. Through the coordination between the fixed component 8 and the detection component 9, the detection tool is clamped and fixed by operating the fixed component 8, and the tool can be moved back and forth through the detection component 9, so as to facilitate the detection head 4 to perform hardness detection on multiple positions of the tool.

[0026] like Figure 2As shown, the utility model provides a technical solution for a shield machine tool hardness detection device: the protective component 7 includes a protective cover 1 71 and a protective cover 2 72, the front ends of the protective cover 1 71 and the protective cover 2 72 are both provided with a visual window 73, the bottom middle side of the protective cover 1 71 and the protective cover 2 72 are both provided with a movable groove 78 that passes through inside and outside, the protective cover 1 71 and the protective cover 2 72 are respectively fixedly connected with a slide plate 74 on the front and rear sides near the movable groove 78, the protective cover 1 71 and the protective cover 2 72 are respectively provided with a positioning groove 710 on the left and right sides near one end of the protective cover 2 72, and the protective cover 1 71 and the protective cover 2 72 are respectively fixedly connected with an iron block 75 that matches the positioning groove 710 on the left and right sides near one end of the protective cover 1 71. 2 is provided with a connecting groove 76 that runs through the inside and outside. The opposite sides of the protective cover 1 71 and the protective cover 2 72 near the visual window 73 are fixedly connected with a handle 77. The outer wall of the slide plate 74 is slidably connected to the inside of the slide rail 6. The slide plate 74 slides along the slide rail 6 to open and close the protective cover 1 71 and the protective cover 2 72. The adjacent ends of the protective cover 1 71 and the protective cover 2 72 are engaged. The outer wall of the iron block 75 is engaged with the inside of the positioning groove 710. The detection head 4 passes through the connecting groove 76 to the inside of the protective cover 1 71 and the protective cover 2 72. A connecting groove 76 is provided on the top of the protective cover 1 71 and the protective cover 2 72 to facilitate the detection head 4 to contact the tool surface through the connecting groove 76.

[0027] like Figure 3 As shown, the present invention provides a technical solution for a shield machine tool hardness test device: magnet blocks 79 are fixedly connected to the inner walls of two positioning grooves 710, and one end of the iron block 75 is magnetically connected to the surface of the magnet blocks 79. By placing the magnet blocks 79 in the positioning grooves 710, the protective cover 1 71 and the protective cover 2 72 are combined and fixed.

[0028] like Figure 4 As shown, the utility model provides a technical solution for a shield machine tool hardness detection device: the fixed component 8 includes an electric telescopic rod 81, a splint 82 and a plurality of rubber strips 83. The output end of the electric telescopic rod 81 passes through the interior of the protective cover 71 and is fixedly connected to the middle of the splint 82. One end of the plurality of rubber strips 83 is fixedly connected in an equidistant array to the end of the splint 82 away from the electric telescopic rod 81. The output end of the electric telescopic rod 81 drives the splint 82 to move telescopically, thereby positioning and clamping the tool. The surface of the rubber strip 83 is raised from the surface of the tool to increase the stability of the clamping. The ends away from the protective cover 1 71 and the protective cover 2 72 are fixedly connected to the fixed sleeve 10. One side of the outer wall of the electric telescopic rod 81 is fixedly connected to the interior of the fixed sleeve 10, and the bottom of the splint 82 overlaps the upper surface of the workbench 1.

[0029] like Figure 5As shown, the utility model provides a technical solution for a shield machine tool hardness detection device: a connecting groove 101 is provided on the middle side of the top of the workbench 1, and limiting grooves 102 are respectively provided on the front and rear sides of the top of the workbench 1 near the connecting groove 101. The detection component 9 includes a mounting box 91, a pressure sensor 92, a moving block 93, a slide bar 94, two return springs 95 and two slide blocks 96. The pressure sensor 92 is fixedly connected to the inside of the mounting box 91. The pressure sensor 92 transmits the detection data to the detection system after being squeezed. The top of the moving block 93 is fixedly connected to the middle side of the bottom of the mounting box 91. The moving block 93 is arranged inside the connecting groove 101. The left and right ends of the slide bar 94 are fixedly connected to the inner wall of the connecting groove 101, and the outer wall of the slide bar 94 passes through the left and right ends of the middle of the moving block 93. The moving block 93 slides along the surface of the slide bar 94 to limit the moving trajectory of the installation box 91. The interiors of the two return springs 95 are respectively sleeved on the left and right sides of the exterior of the slide bar 94. The two sliders 96 are respectively fixedly connected to the front and rear sides of the bottom of the installation box 91. The outer walls of the sliders 96 are slidably connected to the inner walls of the limiting grooves 102. The sliders 96 slide along the limiting grooves 102 to improve the stability of the movement of the installation box 91. The adjacent ends of the two return springs 95 are respectively fixedly connected to the left and right ends of the moving block 93. The ends of the two return springs 95 that are away from each other are fixedly connected to the inner walls of the connecting grooves 101. By fixing the two return springs 95 on the left and right ends of the moving block 93, the installation box 91 can be quickly reset to its original position after the tool hardness test is completed.

[0030] The following is a detailed description of the working principle of this shield machine tool hardness detection device.

[0031] like Figure 1-5As shown, when using the hardness testing device to test the shield machine tool, first, the hydraulic telescopic cylinder 3 of the device with model 140H-8R and the electric telescopic rod 81 with model LS-L35S are connected to the external power supply through wires, and the pressure sensor 92 is connected to the external hardness testing display screen. The shield machine tool is placed on the pressure sensor 92, and then the handle 77 is used to move the protective cover 1 71 and the protective cover 2 72 along the slide rail 6 through the slide 74, so that the iron blocks 75 on both sides are respectively inserted into the positioning groove 710 and fixed by magnetic attraction with the surface of the magnet block 79, and then the electric telescopic rod 81 on both sides is turned on, and the output end of the electric telescopic rod 81 drives the splint 82 to move to the two ends of the tool for positioning and clamping, so that the rubber strip 83 fits the surface of the tool, increases the friction between the splint 82 and the tool, and prevents displacement during the detection process, and then starts the hydraulic telescopic cylinder 3, and the output end of the hydraulic telescopic cylinder 3 drives the detection The head 4 is inserted into the protective cover 1 71 and the protective cover 2 72 through the connecting groove 76, contacts and presses the tool, so that the pressure sensor 92 is squeezed and the detected data is transmitted to the external hardness detection display screen. When performing multi-directional detection on the tool, the output end of the left electric telescopic rod 81 pushes the mounting box 91 to the right through the splint 82, and at the same time, the output end of the right electric telescopic rod 81 drives the splint 82 to move to the right, and the mounting box 91 moves along the connecting groove 101 through the moving block 93 to squeeze the return spring 95 on the right, so that the hardness of the left part of the tool can be tested. On the contrary, the output end of the right electric telescopic rod 81 pushes the mounting box 91 to the left through the splint 82, and at the same time, the output end of the left electric telescopic rod 81 drives the splint 82 to move to the left, and the mounting box 91 moves along the connecting groove 101 through the moving block 93 to squeeze the return spring 95 on the left, so that the hardness of the right part of the tool can be tested.

[0032] The specific type and structure of the pressure sensor 92 used are existing products, and the specific circuit connection structure and control relationship between the pressure sensor 92 and the external hardness detection display screen are all existing technologies, which will not be described in detail here.

[0033] The above generally describes the present invention in detail. However, it is obvious to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A shield machine tool hardness detection device, comprising a workbench (1), characterized in that: The middle side of the rear end of the workbench (1) is fixedly connected to an L-shaped frame plate (2), the middle side of the top of the transverse surface of the L-shaped frame plate (2) is fixedly connected to a hydraulic telescopic cylinder (3), the output end of the hydraulic telescopic cylinder (3) passes through the bottom of the L-shaped frame plate (2) and is fixedly connected to a detection head (4), the front and rear sides of the left and right ends of the workbench (1) are respectively fixedly connected to extension plates (5), the top of the workbench (1) is fixedly connected to slide rails (6) through four extension plates (5), the top of the left and right slide rails (6) are provided with protective components (7), the left and right ends of the protective components (7) are respectively provided with fixed components (8), and one end of the opposite surface of the fixed component (8) passes through the interior of the protective component (7), and the middle side of the top of the workbench (1) is provided with a detection component (9).

2. A shield machine tool hardness detection device according to claim 1, characterized in that: The protective assembly (7) includes a protective cover 1 (71) and a protective cover 2 (72), the front ends of the protective cover 1 (71) and the protective cover 2 (72) are both provided with a visual window (73), the bottom middle sides of the protective cover 1 (71) and the protective cover 2 (72) are both provided with a movable groove (78) that is through-and-through, and the front and rear sides of the protective cover 1 (71) and the protective cover 2 (72) near the movable groove (78) are respectively fixedly connected with a slide plate (74), and the protective cover 1 (71) near the protective cover 2 is provided with a visual window (73). Positioning grooves (710) are respectively provided on the left and right sides of one end of the protective cover (72), and iron blocks (75) matching the positioning grooves (710) are respectively fixedly connected on the left and right sides of the protective cover (72) near the end of the protective cover (71). A connecting groove (76) that passes through the inside and outside is provided on the middle side of the top of the protective cover (71) and the protective cover (72). A handle (77) is fixedly connected on the side of the opposite surface of the protective cover (71) and the protective cover (72) near the visual window (73).

3. A shield machine tool hardness detection device according to claim 2, characterized in that: The outer wall of the slide plate (74) is slidably connected to the inside of the slide rail (6), the adjacent ends of the protective cover (71) and the protective cover (72) are engaged, the outer wall of the iron block (75) is engaged with the inside of the positioning groove (710), and the detection head (4) passes through the connecting groove (76) to the inside of the protective cover (71) and the protective cover (72).

4. A shield machine tool hardness detection device according to claim 3, characterized in that: The inner walls of the two positioning grooves (710) are fixedly connected with a magnet block (79), and one end of the iron block (75) is magnetically connected to the surface of the magnet block (79).

5. The shield machine tool hardness detection device according to claim 1, characterized in that: The fixing assembly (8) comprises an electric telescopic rod (81), a clamping plate (82) and a plurality of rubber strips (83). The output end of the electric telescopic rod (81) passes through the interior of the protective cover (71) and is fixedly connected to the middle of the clamping plate (82). One end of the plurality of rubber strips (83) is fixedly connected in an equidistant array to an end of the clamping plate (82) away from the electric telescopic rod (81).

6. The shield machine tool hardness detection device according to claim 5, characterized in that: The ends of the protective cover 1 (71) and the protective cover 2 (72) that are away from each other are fixedly connected to a fixed sleeve (10), one side of the outer wall of the electric telescopic rod (81) is fixedly connected to the inside of the fixed sleeve (10), and the bottom of the clamping plate (82) overlaps the upper surface of the workbench (1).

7. The shield machine tool hardness detection device according to claim 1, characterized in that: A connecting groove (101) is provided on the middle side of the top of the workbench (1), and limiting grooves (102) are respectively provided on the front and rear sides of the top of the workbench (1) near the connecting groove (101). The detection component (9) includes a mounting box (91), a pressure sensor (92), a moving block (93), a slide bar (94), two return springs (95) and two slide blocks (96). The pressure sensor (92) is fixedly connected to the inside of the mounting box (91), and the top of the moving block (93) is fixedly connected to the bottom of the mounting box (91). The movable block (93) is arranged inside the connecting groove (101), the left and right ends of the slide bar (94) are fixedly connected to the inner wall of the connecting groove (101), and the outer wall of the slide bar (94) passes through the left and right ends of the middle part of the movable block (93), the insides of the two return springs (95) are respectively sleeved on the left and right sides of the outside of the slide bar (94), the two sliders (96) are respectively fixedly connected to the front and rear sides of the bottom of the installation box (91), and the outer wall of the slider (96) is slidably connected to the inner wall of the limiting groove (102).

8. The shield machine tool hardness detection device according to claim 7, characterized in that: The adjacent ends of the two return springs (95) are fixedly connected to the left and right ends of the moving block (93), respectively, and the ends of the two return springs (95) that are away from each other are fixedly connected to the inner wall of the connecting groove (101).

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