Anchoring support equipment experimental device for fully-mechanized working face

Abstract

The application discloses a kind of fully mechanized excavation working face anchor support equipment experimental device, it is related to fully mechanized excavation working face mechanical and electrical equipment technical field.The present application includes roadway environment simulation component, for simulating the real working condition of dust and illumination of fully mechanized excavation working face in underground coal mine;Surrounding rock simulation component, the surrounding rock simulation component is installed above roadway environment simulation component, for simulating the surrounding rock of roadway of different hardness;Support component, the support component is installed in the inside of roadway environment simulation component, and it is located below surrounding rock simulation component, for supporting operation;Drill anchor component, drill anchor component is installed in the inside of roadway environment simulation component, and it is located below support component, for drilling anchor operation.The present application can simulate the real environment such as dust, illumination of fully mechanized excavation working face in underground coal mine, and can carry out the experimental study of the operation performance of anchor support equipment in the environment of fully mechanized excavation working face.

Description

Technical Field

[0001] This invention relates to the field of electromechanical equipment technology for tunneling faces, specifically to an experimental device for anchor support equipment in tunneling faces. Background Technology

[0002] With the continuous development of intelligent coal mining in my country, fully mechanized tunneling equipment has gradually shifted from manual assistance under automated control to autonomous operation under intelligent control. The development of intelligent fully mechanized tunneling equipment requires a large amount of experimental data from tunneling operations. However, due to the harsh conditions and complex working conditions in coal mines, the experimental costs and risks have increased dramatically, which is detrimental to safe production. Therefore, fully mechanized tunneling equipment and roadway simulation experimental devices, represented by patents "ZL201720736245" and "CN201710481126," explore the mechanical characteristics of fully mechanized tunneling equipment during operation by simulating surrounding rock properties such as multi-directional stress, tunneling disturbance, and roadway mine pressure. This has promoted the intelligent development of fully mechanized tunneling equipment to a certain extent. However, it still has the following shortcomings: existing experimental devices generally focus on simulating surrounding rock properties, ignoring the impact of complex environmental factors such as high dust levels and uneven lighting in coal mines on the intelligent perception and control of fully mechanized tunneling equipment, causing the simulation experiments to deviate from real working conditions. Therefore, we propose an experimental device for anchor support equipment in fully mechanized tunneling faces. Summary of the Invention

[0003] The purpose of this invention is to provide an experimental device for anchor support equipment in fully mechanized tunneling faces, which can simulate the real environment of high dust and uneven lighting in underground fully mechanized tunneling faces in coal mines.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An experimental device for anchor support equipment in a fully mechanized tunneling face includes:

[0006] The system includes: a tunnel environment simulation component for simulating real-world working conditions of high dust and uneven lighting in a fully mechanized tunneling face in a coal mine; a surrounding rock simulation component installed above the tunnel environment simulation component to simulate surrounding rocks of different hardnesses; a support component installed inside the tunnel environment simulation component and below the surrounding rock simulation component for support operations; and a drill-and-anchor component installed inside the tunnel environment simulation component and below the support component for drilling and anchoring operations.

[0007] Furthermore, the tunnel environment simulation component includes a tunnel simulation support frame, a first closed curtain, a second closed curtain, a third closed curtain, a dust simulator, a fourth closed curtain, and a light simulator.

[0008] The first, second, third, and fourth closed curtains are fixedly installed on the four sides of the tunnel simulation support frame, the dust simulator is installed on the inner side of the tunnel simulation support frame by bolts, and the light simulator is installed on the lower inner wall of the support assembly by bolts.

[0009] Furthermore, there is one first closed door curtain and one second closed door curtain, and two third closed door curtains and two fourth closed door curtains.

[0010] Furthermore, the surrounding rock simulation component includes a surrounding rock loading linear bearing, a surrounding rock loading shaft, a surrounding rock loading support frame, a surrounding rock loading hydraulic cylinder, a surrounding rock loading damper, a sample support frame, and a surrounding rock sample;

[0011] The surrounding rock loading support frame is fixedly connected to the roadway simulation support frame. A surrounding rock loading hydraulic cylinder is detachably installed at the bottom of the inner wall of the surrounding rock loading support frame. A surrounding rock loading damper is installed at the bottom of the surrounding rock loading hydraulic cylinder.

[0012] The bottom end of the surrounding rock loading shaft is fixedly connected to the roadway simulation support frame, and a surrounding rock loading linear bearing is slidably connected to the surrounding rock loading shaft. The surrounding rock loading linear bearing is fixedly installed on the sample support frame.

[0013] The surrounding rock loading support frame is fixedly connected to the tunnel simulation support frame, and the surrounding rock sample is installed inside the sample support frame.

[0014] Furthermore, the number of surrounding rock loading linear bearings is four, and the four surrounding rock loading linear bearings are fixedly connected in a rectangular shape at the four corners of the sample support frame.

[0015] Furthermore, the surrounding rock loading support frame and the surrounding rock loading hydraulic cylinder are installed together by bolts.

[0016] Furthermore, the support assembly includes a support top plate, a first support hydraulic cylinder, a first support base, a second support base, and a second support hydraulic cylinder;

[0017] The first support base and the second support base are both fixedly installed on the inner side of the tunnel simulation support frame. The first support base is equipped with a first support hydraulic cylinder on its top, and the second support base is equipped with a second support hydraulic cylinder on its top.

[0018] The top ends of the first and second support hydraulic cylinders are respectively connected to the support top plate by bolts.

[0019] Furthermore, both the first support base and the second support base are bolted onto the tunnel simulation support frame.

[0020] Furthermore, the drilling and anchoring assembly includes a positioning camera, an anchor drilling rig, an anchor support base, a drilling and anchoring robotic arm, a first automatic anchor rod changing component, and a second automatic anchor rod changing component;

[0021] The positioning camera is bolted to the front end of the anchor drilling rig, the anchor drilling rig is bolted to the drilling and anchoring robotic arm, and the drilling and anchoring robotic arm is bolted to the anchor support base.

[0022] The first and second automatic anchor bolt replacement components are bolted to the anchor bolt support.

[0023] The present invention has at least the following beneficial effects:

[0024] 1. This invention uses a light simulator, a dust simulator, and a closed curtain device to simulate the complex roadway conditions of high dust and uneven lighting in the enclosed environment of a coal mine tunneling face.

[0025] Coal mine underground tunneling faces are often accompanied by high-dust working conditions such as tunneling, support, and drilling and anchoring. Especially during tunneling operations, the continuous cutting of the surrounding rock by the tunneling cutter head will generate a large amount of dust in a short period of time. At the same time, due to the large number of manual labor involved in auxiliary operations such as drilling, anchoring, and support, multiple mine lamps and equipment lights flicker and sway, making it difficult to evenly cover the light intensity in the closed environment of the roadway. Therefore, this invention uses a light simulator, a dust simulator, and a closed curtain device to simulate the complex working conditions of high dust and uneven lighting in the closed environment of the roadway, laying the foundation for the intelligent sensing and control of subsequent tunneling equipment.

[0026] 2. This invention uses a drilling and anchoring robotic arm and a positioning camera to assist the anchor drilling rig in conducting autonomous identification of anchoring hole positions and online planning simulation experiments of drilling and anchoring operation trajectories.

[0027] Traditional drilling and anchoring equipment is limited by its own structure and sensing technology, and generally relies on manual assistance for drilling arm trajectory control and anchor hole alignment. The positioning process is complex and labor-intensive. Therefore, this invention uses a drilling and anchoring robotic arm with multiple degrees of freedom, combined with intelligent control algorithms to explore the optimal motion trajectory of the drilling arm in the confined space of the tunnel, and combines image enhancement and visual perception algorithms to call a positioning camera to assist the drilling rig in simulating rapid identification and positioning experiments of anchor holes, providing technical support for the intelligent control of subsequent drilling and anchoring equipment.

[0028] 3. This invention uses a surrounding rock simulation component in conjunction with a support component and a drill-anchor component to explore the adaptive support and drill-anchor operation performance of anchor support equipment under various abrupt loads and surrounding rock hardness.

[0029] The surrounding rock properties of underground longwall mining faces are complex, especially in the Lianghuai mining area where the distribution of soft and hard rock in longwall roadways is uneven, often accompanied by tunneling disturbances and sudden changes in mine pressure. Therefore, this invention randomly embeds various types of rock with different hardness into concrete blocks to construct surrounding rock simulation components, and uses four sets of loading hydraulic cylinders and dampers to simulate sudden changes in mine pressure. At the same time, the support components and drill-anchor components are used to simulate the adaptive support and drill-anchor operation processes under various sudden loads, further exploring the mechanical performance of the anchor support equipment under adaptive control operation, and providing theoretical support for the subsequent adaptive operation of the anchor support equipment.

[0030] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0031] Figure 1 A three-dimensional schematic diagram of the overall structure of the present invention;

[0032] Figure 2 A front view of the overall structure of the present invention;

[0033] Figure 3 A three-dimensional schematic diagram of the structure of the tunnel environment simulation component and the surrounding rock simulation component of the present invention;

[0034] Figure 4 A front view schematic diagram of the structure of the tunnel environment simulation component and the surrounding rock simulation component of the present invention;

[0035] Figure 5 A front view schematic diagram of the surrounding rock simulation component, support component, and drill-anchor component structure of the present invention;

[0036] Figure 6 A three-dimensional schematic diagram of the drilling and anchor assembly structure of the present invention.

[0037] Figure label:

[0038] 1. Tunnel environment simulation component; 2. Surrounding rock simulation component; 3. Support component; 4. Drill and anchor component; 11. Tunnel simulation support frame; 12. First closed curtain; 13. Second closed curtain; 14. Third closed curtain; 15. Dust simulator; 16. Fourth closed curtain; 17. Light simulator; 21. Surrounding rock loading linear bearing; 22. Surrounding rock loading shaft; 23. Surrounding rock loading support frame; 24. Surrounding rock loading hydraulic cylinder; 25. Surrounding rock loading damper; 26. Sample support frame; 27. Surrounding rock sample; 31. Support roof plate; 32. First support hydraulic cylinder; 33. First support base; 34. Second support base; 35. Second support hydraulic cylinder; 41. Positioning camera; 42. Anchor drill; 43. Anchor support seat; 44. Drill and anchor robotic arm; 45. First anchor automatic rod changing component; 46. Second anchor automatic rod changing component. Detailed Implementation

[0039] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0040] Please see Figure 1-6 This invention provides a technical solution: an experimental device for anchor support equipment in a fully mechanized tunneling face, comprising:

[0041] The tunnel environment simulation component 1 is used to simulate the real working conditions of dust and light at the working face of the fully mechanized tunneling work area in a coal mine.

[0042] Surrounding rock simulation component 2 is installed above the tunnel environment simulation component 1 and is used to simulate tunnel surrounding rock of different hardness.

[0043] Support component 3 is installed inside the tunnel environment simulation component 1 and is located below the surrounding rock simulation component 2 for support operations.

[0044] Drill and anchor assembly 4 is installed inside the tunnel environment simulation assembly 1 and is located below the support assembly 3 for drilling and anchoring operations.

[0045] The tunnel environment simulation component 1 includes a tunnel simulation support frame 11, a first closed curtain 12, a second closed curtain 13, a third closed curtain 14, a dust simulator 15, a fourth closed curtain 16, and a light simulator 17.

[0046] The first closed curtain 12, the second closed curtain 13, the third closed curtain 14, and the fourth closed curtain 16 are respectively fixedly installed on the four sides of the tunnel simulation support frame 11. There is one first closed curtain 12 and one second closed curtain 13, and two third closed curtains 14 and two fourth closed curtains 16. When the four closed curtains are opened, they can form a closed space with the tunnel simulation support frame 11. The dust simulator 15 is installed on the inside of the tunnel simulation support frame 11 by bolts, and the light simulator 17 is installed on the lower inner wall of the support component 3 by bolts.

[0047] Furthermore, regarding the technical solution of this application, the dust simulator 15 is preferably a dust environment simulation simulator VST2.0, which generates dust in the enclosed space formed above, and can simulate real-time working conditions.

[0048] On the other hand, regarding the technical solution of this application, the light simulator 17 is preferably a spotlight. The spotlight is powered by an external power source and is installed on the underside of the support roof plate 31 by bolts. It is mainly used to simulate the actual light intensity of the underground tunneling face in a coal mine.

[0049] The surrounding rock simulation component 2 includes a surrounding rock loading linear bearing 21, a surrounding rock loading shaft 22, a surrounding rock loading support frame 23, a surrounding rock loading hydraulic cylinder 24, a surrounding rock loading damper 25, a sample support frame 26, and a surrounding rock sample 27.

[0050] The surrounding rock loading support frame 23 is fixedly connected to the roadway simulation support frame 11. The bottom of the inner wall of the surrounding rock loading support frame 23 is detachably installed with a surrounding rock loading hydraulic cylinder 24 by bolts. A surrounding rock loading damper 25 is installed at the bottom of the surrounding rock loading hydraulic cylinder 24. The output force of the surrounding rock loading hydraulic cylinder 24 is controlled by the surrounding rock loading damper 25, which can simulate the influence of roadway surrounding rock of different hardness on the working performance of the support component 3 and the drill and anchor component 4.

[0051] The bottom end of the surrounding rock loading shaft 22 is fixedly connected to the tunnel simulation support frame 11. A surrounding rock loading linear bearing 21 is slidably connected on the surrounding rock loading shaft 22. There are four surrounding rock loading linear bearings 21, which are fixedly installed on the four corners of the sample support frame 26. When the surrounding rock loading linear bearing 21 slides on the surrounding rock loading shaft 22, it can drive the sample support frame 26 to slide up and down accordingly.

[0052] The surrounding rock loading support frame 23 is fixedly connected to the tunnel simulation support frame 11, and the surrounding rock sample 27 is installed inside the sample support frame 26.

[0053] The support assembly 3 includes a support top plate 31, a first support hydraulic cylinder 32, a first support base 33, a second support base 34, and a second support hydraulic cylinder 35;

[0054] The first support base 33 and the second support base 34 are both fixedly installed on the inner side of the roadway simulation support frame 11. The first support hydraulic cylinder 32 is installed on the top of the first support base 33, and the second support hydraulic cylinder 35 is installed on the top of the second support base 34.

[0055] The top ends of the first support hydraulic cylinder 32 and the second support hydraulic cylinder 35 are respectively connected to the support top plate 31 by bolts.

[0056] By activating the controllers of the first support hydraulic cylinder 32 and the second support hydraulic cylinder 35 to extend and retract their lengths, the support output force can be adjusted, and the entire support operation can be completed in conjunction with the surrounding rock simulation component 2.

[0057] It should be noted that the first support base 33 and the second support base 34 are both installed on the tunnel simulation support frame 11 by bolts.

[0058] The drilling and anchoring assembly 4 includes a positioning camera 41, an anchor drilling rig 42, an anchor support 43, a drilling and anchoring robotic arm 44, a first anchor automatic rod changing component 45, and a second anchor automatic rod changing component 46. It can work in conjunction with the surrounding rock simulation assembly 2 to complete the entire drilling and anchoring operation.

[0059] The positioning camera 41 is bolted to the front end of the anchor drilling machine 42, the anchor drilling machine 42 is bolted to the drilling and anchoring robotic arm 44, and the drilling and anchoring robotic arm 44 is bolted to the anchor support 43. Using the set anchor drilling posture robotic arm, the anchor drill can be adjusted to the designated working position by rotating and swinging.

[0060] It should be noted that, for the technical solution of this application, the positioning camera 41 is preferably a machine vision industrial lens ZX-SF03524C, used for accurate identification of the drilling position of the drilling rig.

[0061] The first automatic anchor bolt changing component 45 and the second automatic anchor bolt changing component 46 are bolted to the anchor bolt support 43. The first automatic anchor bolt changing component 45 and the second automatic anchor bolt changing component 46 can adjust their postures and cooperate with the anchor bolt drilling machine 42 to complete the automatic bolt changing action.

[0062] The usage process and principle of this invention:

[0063] In the simulation experiment of complex working conditions with high dust and uneven lighting in the closed environment of a coal mine tunneling face, the first closed curtain 12, the second closed curtain 13, the third closed curtain 14 and the fourth closed curtain 16 are closed to form a closed space. Two sets of dust simulators 15 are turned on and the dust concentration is monitored and adjusted at the same time to simulate various high dust working conditions such as tunneling and drilling. Then, the light simulator 17 is turned on and the light intensity and direction of multiple spotlights are monitored and adjusted at the same time to simulate the uneven lighting caused by the fusion and shaking of multiple mine lamps and equipment lights under the mixed working conditions of human and machine.

[0064] In the simulation experiment of autonomous identification of anchorage hole positions and online planning of drilling and anchoring operation trajectory in coal mine fully mechanized tunneling face, multiple anchorage hole positions were first marked on the surrounding rock sample 27, and the simulated working conditions of high dust and uneven lighting in the roadway were maintained. Then, image enhancement and visual perception algorithms were combined to call the positioning camera 41 to identify and locate the anchorage hole positions. The positioning coordinates of multiple anchorage hole positions were then returned to the drilling and anchoring robot arm 44. Using the positioning coordinates as the target point, the intelligent control algorithm was used to adjust the drilling and anchoring robot arm 44 to plan the motion trajectory. After finding the optimal trajectory, the drilling and anchoring robot arm 44 was controlled to assist the anchor drilling machine 42 in drilling and anchoring operations.

[0065] In the adaptive support and drilling-anchor operation simulation experiment of the anchor support equipment in the coal mine tunneling face, according to the common coal and rock parameters of the Lianghuai mining area, coal and rock of different hardness were randomly embedded in concrete blocks to construct surrounding rock samples 27. Then, by adjusting the pre-pressure of the surrounding rock loading hydraulic cylinder 24 and cooperating with multiple surrounding rock loading dampers 25, the sudden change of mine pressure was simulated. Then, the first support hydraulic cylinder 32 and the second support hydraulic cylinder 35 were controlled to slowly rise to support the roof 31. At the same time, the support pressure of the first support hydraulic cylinder 32 and the second support hydraulic cylinder 35 in the three support stages of initial support, resistance increase and constant resistance was monitored and adjusted to simulate the adaptive support operation experiment of the support component 3 in real time. Finally, the anchor drilling rig 42, which had reached the anchor hole position, was controlled to perform drilling and anchoring operations. At the same time, the advance speed, rotation speed and drilling and anchoring pressure of the anchor drilling rig 42 were monitored and adjusted to simulate the adaptive drilling and anchoring operation experiment of the drilling and anchoring component 4 under different rock hardnesses in real time.

[0066] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0067] For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances. When an element is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another element, it may be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0068] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

[0069] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. An experimental device for anchor support equipment in a fully mechanized tunneling face, characterized in that, include; The tunnel environment simulation component (1) is used to simulate the real working conditions of dust and light at the working face of the underground tunneling work in a coal mine; The tunnel environment simulation component (1) includes a tunnel simulation support frame (11), a first closed curtain (12), a second closed curtain (13), a third closed curtain (14), a dust simulator (15), a fourth closed curtain (16), and a light simulator (17); The first closed curtain (12), the second closed curtain (13), the third closed curtain (14) and the fourth closed curtain (16) are respectively fixedly installed on the four sides of the tunnel simulation support frame (11). The dust simulator (15) is installed on the inner side of the tunnel simulation support frame (11) by bolts. The light simulator (17) is installed on the lower inner wall of the support assembly (3) by bolts. Surrounding rock simulation component (2), which is installed above the tunnel environment simulation component (1) to simulate tunnel surrounding rock of different hardness; The surrounding rock simulation component (2) includes a surrounding rock loading linear bearing (21), a surrounding rock loading shaft (22), a surrounding rock loading support frame (23), a surrounding rock loading hydraulic cylinder (24), a surrounding rock loading damper (25), a sample support frame (26), and a surrounding rock sample (27); The surrounding rock loading support frame (23) is fixedly connected to the roadway simulation support frame (11). The bottom of the inner wall of the surrounding rock loading support frame (23) is detachably equipped with a surrounding rock loading hydraulic cylinder (24). The bottom end of the surrounding rock loading hydraulic cylinder (24) is equipped with a surrounding rock loading damper (25). The bottom end of the surrounding rock loading shaft (22) is fixedly connected to the tunnel simulation support frame (11), and a surrounding rock loading linear bearing (21) is slidably connected on the surrounding rock loading shaft (22). The surrounding rock loading linear bearing (21) is fixedly installed on the sample support frame (26). The surrounding rock loading support frame (23) is fixedly connected to the tunnel simulation support frame (11), and the surrounding rock sample (27) is installed inside the sample support frame (26); Support component (3), which is installed inside the tunnel environment simulation component (1) and located below the surrounding rock simulation component (2), is used for support operations; The support assembly (3) includes a support top plate (31), a first support hydraulic cylinder (32), a first support base (33), a second support base (34), and a second support hydraulic cylinder (35); The first support base (33) and the second support base (34) are both fixedly installed on the inner side of the tunnel simulation support frame (11). The first support base (33) is equipped with a first support hydraulic cylinder (32), and the second support base (34) is equipped with a second support hydraulic cylinder (35). The top ends of the first support hydraulic cylinder (32) and the second support hydraulic cylinder (35) are respectively connected to the support top plate (31) by bolts; Drill and anchor assembly (4) is installed inside the tunnel environment simulation assembly (1) and located below the support assembly (3) for drilling and anchoring operations.

2. The experimental device for anchor support equipment in a fully mechanized tunneling face according to claim 1, characterized in that: The number of the first closed door curtain (12) and the second closed door curtain (13) is one, and the number of the third closed door curtain (14) and the fourth closed door curtain (16) is two.

3. The experimental device for anchor support equipment in a fully mechanized tunneling face according to claim 2, characterized in that: The number of surrounding rock loading linear bearings (21) is four, and the four surrounding rock loading linear bearings (21) are fixedly connected in a rectangular shape at the four corners of the sample support frame (26).

4. The experimental device for anchor support equipment in a fully mechanized tunneling face according to claim 2, characterized in that: The surrounding rock loading support frame (23) and the surrounding rock loading hydraulic cylinder (24) are installed together by bolts.

5. The experimental device for anchor support equipment in a fully mechanized tunneling face according to claim 4, characterized in that: The first support base (33) and the second support base (34) are both installed on the tunnel simulation support frame (11) by bolts.

6. The experimental device for anchor support equipment in a fully mechanized tunneling face according to claim 1, characterized in that: The drilling and anchoring assembly (4) includes a positioning camera (41), an anchor drilling machine (42), an anchor support seat (43), a drilling and anchoring robotic arm (44), a first anchor automatic rod changing component (45), and a second anchor automatic rod changing component (46). The positioning camera (41) is bolted to the front end of the anchor drilling machine (42), the anchor drilling machine (42) is bolted to the drilling and anchoring mechanical arm (44), and the drilling and anchoring mechanical arm (44) is bolted to the anchor support seat (43). The first automatic anchor bolt replacement component (45) and the second automatic anchor bolt replacement component (46) are bolted to the anchor bolt support (43).

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