A heading machine roof bolting mechanism

Abstract

The application belongs to the technical field of anchor rod support, and discloses a heading machine anchor rod supporting mechanism, which comprises an anchor rod body, an anchor rod head is arranged above the anchor rod body, a grouting hole is arranged in the center of the anchor rod head, and a grouting barrel is fixedly connected in the inner wall of the bottom end of the anchor rod head. The sleeve plate driven by the rotating cylinder to move downward will press the ball lever, and the continuous pressure will drive the U-shaped supporting plate to tilt with the rotating lever as the axis point, so that the rotating shaft continuously presses the sleeve disc in the rectangular groove on the lever in the tilting process, which will make the sleeve disc slide and extrude spring two on the lever, so that the sleeve disc is deformed under stress, and the angle of the U-shaped supporting plate changes, which will drive the lever to tilt and slide on the arc lever, and the lever will be driven by the spring two without stress to extend the impact force, hit the plug to make it separate from the anchor rod body, so that the lever extends out of the anchor rod body and presses the inner wall of the tunnel, thereby improving the structural safety in the tunnel engineering.

Description

Technical Field

[0001] This invention belongs to the field of anchor bolt support technology, specifically an anchor bolt support mechanism for a tunneling machine. Background Technology

[0002] Rock bolts are a fundamental component of roadway support in modern coal mines. They reinforce the surrounding rock of the roadway, allowing the rock to support itself. Rock bolts are used not only in mines but also in engineering technology for the main reinforcement of slopes, tunnels, and dams. As a tension member that penetrates deep into the strata, one end of the rock bolt is connected to the engineering structure, and the other end is inserted into the strata. The entire rock bolt is divided into a free section and an anchored section. The free section is the area where the tension at the head of the rock bolt is transmitted to the anchor body, and its function is to apply prestress to the rock bolt. The anchor bolt is the area where cement grout bonds the prestressing tendons to the soil layer, and its function is to increase the bonding friction between the anchor body and the soil layer, thereby increasing the bearing capacity of the anchor body. Currently, the process of anchor bolt support may cause blockage at the grouting site, affecting the grouting process. Furthermore, the grouting process requires continuous connection and restraint of the external anchor bolt until the cement grout solidifies and reaches the fixed bearing capacity of the anchor bolt. Otherwise, the anchor bolt may shift within the cement grout and may not maintain a neutral state, which will reduce the overall bearing capacity. Such construction methods result in the inability to improve the efficiency of this step. Summary of the Invention

[0003] To address the issue raised in the background art that the grouting process requires continuous connection and restraint of the external anchor rod until the cement grout solidifies and reaches the fixed bearing capacity of the anchor rod, otherwise the anchor rod may shift within the cement grout and may not maintain a neutral state, thus reducing the overall bearing capacity and hindering the improvement of work efficiency in this step, this invention provides an anchor rod support mechanism for tunneling machines.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a tunneling machine anchor bolt support mechanism, comprising an anchor bolt body, an anchor bolt head at the top of the anchor bolt body, a grouting hole through the center of the anchor bolt head, a grouting cylinder pipe fixedly connected through the inner wall of the bottom end of the anchor bolt head, the bottom outer wall of the grouting cylinder pipe and the inner wall of the anchor bolt body being slidably connected, a gasket being attached to the outer wall of the anchor bolt body near the bottom end, a nut being fixedly connected to the outer wall of one end of the gasket, the nut being threadedly connected to the outer wall of the anchor bolt body, a support section being jointly provided between the inner wall of the anchor bolt body and the pipe body of the grouting cylinder pipe, the support section including two sets of disc plates provided on the outer wall of the grouting cylinder pipe, the two sets of disc plates being one large and one small, each set of disc plates being provided with an elastic pressing structure.

[0005] Preferably, each of the small disc plates has a pressure block attached to both outer walls of its top two sides, and the two pressure blocks are respectively fixedly connected to the outer walls of both ends of the grouting cylinder. Each set of disc plates is slidably connected to the body of the grouting cylinder, and the outer wall of each large disc plate is also fixedly connected to the inner wall of the anchor bolt body.

[0006] Preferably, each set of elastic pressing structures includes a spring, the upper and lower ends of which are fixedly connected to the outer wall of one end of a large and one small disc plate, respectively, and a rotating cylinder is also fixedly connected to the outer wall of the grouting cylinder.

[0007] Preferably, an arc groove is formed on the outer wall of the rotating cylinder. The arc groove is specifically composed of a vertical arc-angle groove and an arc ring groove surrounding the upper and lower ends of the vertical arc-angle groove. A sleeve plate is fixedly connected to the bottom outer wall of the rotating cylinder, and the sleeve plate is rotatably connected to the outer wall of the grouting cylinder.

[0008] Preferably, a sliding rod is slidably connected to the inner wall of the vertical arc-shaped groove, and the sliding rod and the inner wall of the arc-shaped groove are also slidably connected. The other end of the sliding rod is fixedly connected to the inner wall of the anchor rod body, and the sliding rod is specifically an elastic telescopic rod.

[0009] Preferably, a rotating rod is fixedly connected to the inner wall of the anchor rod body, and a U-shaped support plate is movably sleeved on the rod body. A ball rod is fixedly connected to the outer walls of both ends of the U-shaped support plate near the top. The bottom side plate of the sleeve plate and the top end of the ball rod can be fitted together. A rotating shaft is fixedly connected to the inner wall of the U-shaped support plate near the bottom.

[0010] Preferably, a stop rod is slidably connected to the shaft body, a rectangular groove is formed through the top of the stop rod, and a sleeve is slidably connected to the outer wall of the stop rod.

[0011] Preferably, a spring is fixedly connected between the bottom outer wall of the sleeve and a section of the rod body, and an arc-shaped abutment plate is fixedly connected in the side wall of the anchor rod body, with the top of the arc-shaped abutment plate and the bottom outer wall of the rod body being slidably connected in contact.

[0012] Preferably, a material plug is inserted through one end of the side wall of the abutment plate, and the bottom end of the abutment rod and the inner wall of the material plug can be fitted together.

[0013] Preferably, both the material plug and the grout plug are made of non-reactive mineral admixture material. L-shaped rods are fixedly connected to both sides of the top end of the anchor bolt body. The rods of the two L-shaped rods are slidably connected to the two sides of the anchor bolt head. A grout plug is attached to the top rod of the two anchor bolt heads. The grout plug is engaged with the inner wall of the grouting hole. The bottom plate of the grouting cylinder is provided with multiple arc grooves, and a conical plate is attached to the inner wall of each arc groove. The plate of each conical plate is also slidably connected to the rod of the anchor rod body.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes a sleeve plate moved downward by a rotating drum to press down on a ball rod on a U-shaped support plate. Continuous pressure causes the U-shaped support plate to tilt around the rotating rod as an axis. During this tilting process, the rotating shaft continuously applies pressure to the sleeve plate within the rectangular groove on the abutment rod. This causes the sleeve plate to slide and compress the second spring as the abutment rod moves up and down, causing it to deform under force. Driven by the unloaded second spring, it extends with impact force, striking the material plug and detaching it from the anchor rod body. Thus, the abutment rod extends out of the anchor rod body and presses against the inner wall of the tunnel. By providing additional support at relatively staggered positions on both sides of the anchor rod body, the anchor rod body can be kept horizontal within the tunnel wall. This avoids uneven pressure distribution during grouting solidification in tilted configurations, significantly reducing the cost of installing multiple additional supports and thus improving the support effect of the anchor rod body. When the grouting tube is retracted into the anchor bolt body under force, the grout plug attached to the anchor bolt head will detach from the grouting hole in the anchor bolt head under the obstruction of the two L-shaped rods at the bottom, and adhere to the surface of the anchor bolt head and the grouting tube. The impact force of subsequent cement grouting will easily move the lightweight grout plug upward, so that it will not hinder the cement grouting process. The grout plug previously located in the anchor bolt head will prevent soil and rock materials in the tunnel from entering the anchor bolt head and the grouting tube, thus avoiding grouting blockage.

[0015] This invention provides another layer of limiting and reinforcement by using multiple conical plates and arc-shaped grooves installed on the outer wall of the anchor bolt body near the tunnel opening. After the anchor bolt body is placed, the multiple conical plates installed on the outer wall of the grouting cylinder will stop rotating and pressing, and the conical plates will disengage from the corresponding arc-shaped grooves, allowing the conical plates to be driven into the tunnel opening. This effectively prevents the support force from deteriorating during use due to the large bearing capacity near the opening when the anchor bolt body is being supported, thereby improving the support force. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall cross-sectional structure of the anchor bolt body of the present invention; Figure 3 This is a schematic diagram of the cross-sectional structure of the anchor bolt body and the anchor bolt head of the present invention; Figure 4 For the present invention Figure 2A magnified view of the structure at point A in the middle; Figure 5 This is a partial structural diagram of the support component of the present invention; Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point B in the middle; Figure 7 This is a schematic diagram of the overall structure of the sleeve plate of the present invention; Figure 8 This is a schematic diagram of a partially disassembled support structure of the present invention; Figure 9 This is a schematic diagram of a partial cross-sectional structure of the anchor bolt body of the present invention; Figure 10 This is a schematic diagram of the unfolded structure of the abutment rod of the present invention; Figure 11 This is a schematic diagram of the overall structure of the cone plate of the present invention; Figure 12 This is a top view schematic diagram of the fitting of the arc groove and the conical plate of the present invention.

[0017] In the picture: 1. Anchor bolt body; 11. Anchor bolt head; 12. Grouting cylinder; 13. Washer; 14. Nut; 2. Support section; 21. Disc plate; 22. Spring 1; 23. Rotary cylinder; 24. Arc groove; 25. Sleeve plate; 26. Sliding rod; 27. Rotating rod; 28. U-shaped support plate; 29. ​​Ball rod; 230. Rotating shaft; 231. Abutment rod; 232. Rectangular groove; 233. Sleeve disc; 234. Spring 2; 235. Arc abutment plate; 236. Material plug; 237. L-shaped rod; 238. Pulley plug; 239. Arc groove; 240. Conical plate. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] like Figures 1 to 12As shown, the present invention provides a tunneling machine anchor bolt support mechanism, including an anchor bolt body 1, an anchor bolt head 11 at the top of the anchor bolt body 1, a grouting hole through the center of the anchor bolt head 11, a grouting cylinder 12 fixedly connected through the inner wall of the bottom end of the anchor bolt head 11, the bottom outer wall of the grouting cylinder 12 and the inner wall of the anchor bolt body 1 being slidably connected, a gasket 13 being attached to the outer wall of the anchor bolt body 1 near the bottom end, a nut 14 being fixedly connected to the outer wall of one end of the gasket 13, the nut 14 being threadedly connected to the outer wall of the anchor bolt body 1, a support part 2 being provided between the inner wall of the anchor bolt body 1 and the pipe body of the grouting cylinder 12, the support part 2 including two sets of disc plates 21 provided on the outer wall of the grouting cylinder 12, the two sets of disc plates 21 being one large and one small, each set of disc plates 21 being provided with an elastic pressing structure.

[0020] Using the above method: the anchor body 1 is inserted into the tunnel hole groove until the anchor head 11 is pressed against the bottom of the tunnel hole groove. As a result, the anchor head 11 will be forced to press the connected grouting cylinder 12, causing it to retract within the anchor body 1. The presence of the nut 14 can adjust the spacing of the gaskets 13 on the anchor body 1.

[0021] Each small disc plate 21 has pressure blocks attached to both outer walls of its top two sides. Each pressure block is fixedly connected to the outer walls of both ends of the grouting cylinder 12. Each set of disc plates 21 is slidably connected to the body of the grouting cylinder 12. The outer wall of each large disc plate 21 is also fixedly connected to the inner wall of the anchor bolt body 1. Each elastic pressing structure includes a spring 22, the upper and lower ends of which are fixedly connected to the outer walls of one end of a large and one small disc plate 21, respectively. The outer wall of the grouting cylinder 12 is also fixedly connected to... The rotating cylinder 23 has an arc groove 24 on its outer wall. The arc groove 24 is specifically composed of a vertical arc corner groove and an arc ring groove around the upper and lower ends of the vertical arc corner groove. A sleeve plate 25 is fixedly connected to the bottom outer wall of the rotating cylinder 23. The sleeve plate 25 is rotatably connected to the outer wall of the grouting cylinder 12. A sliding rod 26 is slidably connected to the inner wall of the vertical arc corner groove. The sliding rod 26 can also be slidably connected to the inner wall of the arc ring groove. The other end of the sliding rod 26 is fixedly connected to the inner wall of the anchor rod body 1. The sliding rod 26 is also specifically an elastic telescopic rod.

[0022] Using the above scheme: During the retraction process of the grouting cylinder 12, the pressure block installed on the grouting cylinder 12 will drive the small disc plate 21 to move synchronously, thereby squeezing the spring 22 on the large disc plate 21 and causing it to deform under force. At this time, the arc groove on the rotating cylinder 23 will move vertically downward under the limit of the sliding rod 26, so that the sliding rod 26 moves upward to the top of the arc groove, thereby the sliding rod 26 elastically contacts the inner wall of one end of the arc groove.

[0023] An anchor bolt body 1 is also fixedly connected to a rotating rod 27 within its inner wall. A U-shaped support plate 28 is movably sleeved on the rod of the rotating rod 27. Ball rods 29 are fixedly connected to the outer walls of both ends of the U-shaped support plate 28 near the top. The bottom side plate of the sleeve plate 25 and the top of a ball rod 29 can be fitted together. A rotating shaft 230 is fixedly connected to the inner wall of the U-shaped support plate 28 near the bottom. A stop rod 231 is slidably connected to the rod of the rotating shaft 230. A rectangular groove 232 is formed through the top of the stop rod 231. A sleeve 233 is slidably connected to the outer wall of the rod 231. A spring 234 is fixedly connected between the bottom outer wall of the sleeve 233 and a section of the rod of the rod 231. An arc-shaped abutment plate 235 is fixedly connected to the side wall of the anchor rod body 1. The top of the arc-shaped abutment plate 235 is slidably connected to the bottom outer wall of the rod 231. A material plug 236 is inserted and engaged on one side wall of the anchor rod body 1 located on the arc-shaped abutment plate 235. The bottom rod of the rod 231 and the inner wall of the material plug 236 can be fitted and connected. Multiple arc grooves 239 are provided around the bottom plate of the grouting cylinder 12. A conical plate 240 is attached to the inner wall of each arc groove 239. The plate of each conical plate 240 is also slidably connected to the rod of the anchor body 1.

[0024] Using the above scheme: the sleeve 25, driven downward by the rotating cylinder 23, will press down on a ball rod 29 on the U-shaped support plate 28. Continuous pressure will cause the U-shaped support plate 28 to tilt around the rotating rod 27 as its axis. This will cause the rotating shaft 230 to continuously apply pressure to the sleeve 233 within the rectangular groove 232 on the abutment rod 231 during the tilting process. This will cause the sleeve 233 to slide and compress the second spring 234 as the abutment rod 231 moves up and down, causing it to deform under force. The angle change as the U-shaped support plate 28 tilts will cause the abutment rod 231 to tilt and slide on the arc-shaped abutment plate 235. As the sliding rod 26 moves upward to the top of the arc-shaped groove, the abutment rod 231 completely changes its initial orientation angle. Figure 7 As shown, without the obstruction of the right side plate of the arc-shaped abutment plate 235, turning to the left position, it will be driven by the no longer stressed spring 234 to extend with impact force, striking the material plug 236 to detach it from the anchor rod body 1. Thus, the abutment rod 231 extends out of the anchor rod body 1 and presses against the inner wall of the tunnel, as... Figure 2As shown, the design of the opposite symmetrical abutment rod 231 can optimize the force transmission path and reduce local stress concentration. When the symmetrical abutment rod 231 is used for grouting reinforcement, it can more evenly distribute the surrounding rock pressure and improve the overall bearing capacity, thereby improving the structural safety in tunnel engineering. Subsequently, it is necessary to pull back the anchor rod body 1 so that the grouting cylinder 12 can be automatically reset by the spring 22. In this way, when the rotating cylinder 23 is reset by force, the sliding rod 26 located in one end of the arc ring groove will slide in the inner wall of the arc ring groove. Under this dynamic, the rotating cylinder 23 will be reset while rotating and moving upward, thereby driving the sleeve plate 25 to rotate above the other ball rod 29, without colliding with the previously pressed ball rod 29. At the same time, after the anchor body 1 is placed, the multiple cone plates 240 installed on the outer wall of the grouting cylinder 12 will stop rotating and squeezing. At this time, the cone plates 240 will disengage from the corresponding arc grooves 239 and instead fit against the bottom outer wall of the grouting cylinder 12. At this time, the sharp end of each passively extended cone plate 240 will be nailed into the tunnel hole, which will play another level of limiting and reinforcement, ensuring that the anchor body 1 will not tilt or shift due to the weight of the rod in the tunnel. This allows the tunneling machine to insert the anchor body 1 into the tunnel and then proceed to place the next anchor body 1, thereby improving the support efficiency and quality of the anchor body 1.

[0025] Both the material plug 236 and the grout plug 238 are made of non-reactive mineral admixture material. L-shaped rods 237 are fixedly connected to both sides of the top of the anchor bolt body 1. The rods of the two L-shaped rods 237 are slidably connected to the two sides of the anchor bolt head 11. A grout plug 238 is attached to the top rod of the two anchor bolt heads 11. The grout plug 238 is snapped into the inner wall of the grouting hole.

[0026] Using the above scheme: when the grouting cylinder 12 is retracted into the anchor bolt body 1 under force, the grout plug 238 that is stuck on the anchor bolt head 11 will be separated from the grouting hole in the anchor bolt head 11 by the two L-shaped rods 237 at the bottom end, and will adhere to the surface of the anchor bolt head 11 and the grouting cylinder 12. The non-active mineral admixtures of the grout plug 238 and the material plug 236, such as quartz sand and fly ash, after screening, can enhance the mechanical properties of the grout body when used as a component to fill the cement grout in the subsequent process, and have no chemical reaction with the surrounding structure. The impact force brought by the subsequent cement grout injection will easily drive the light grout plug 238 upward, so that it will not hinder the cement grouting process.

[0027] One point that needs to be added is that the two cues 29 are designed to counterbalance each other, preventing one from being too light and the other too heavy. This would prevent the cues 29 from shifting and rotating due to their own weight before the plate 25 has applied any force to press them down.

[0028] The working principle and usage process of this invention are as follows: Beforehand, the slots in the tunnel requiring grouting and solidification support are drilled. Then, the anchor bolt body 1 is inserted into the tunnel slot using a tunneling machine until the anchor bolt head 11 is pressed against the bottom of the tunnel slot. This causes the anchor bolt head 11 to press against the connected grouting cylinder 12, causing it to retract within the anchor bolt body 1. Simultaneously, the pressure block installed on the grouting cylinder 12 moves the small disc plate 21, thus compressing the spring 22 on the large disc plate 21, causing it to deform. At this time, the arc-shaped groove on the rotating cylinder 23 moves vertically downward under the limit of the sliding rod 26, causing the sliding rod 26 to move upward to... At the top of the arc-shaped groove, the sliding rod 26 elastically contacts the inner wall of one end of the arc-shaped groove. At the same time, the sleeve plate 25, which is driven down by the rotating cylinder 23, will press down on a ball rod 29 on the U-shaped support plate 28. The continuous pressure will cause the U-shaped support plate 28 to tilt around the rotating rod 27 as the axis. This will cause the rotating shaft 230 to continuously press the sleeve plate 233 in the rectangular groove 232 on the abutment rod 231 during the tilting process. This will cause the sleeve plate 233 to slide and compress the spring 234 as the abutment rod 231 moves up and down, causing it to deform under force. The angle that changes with the tilt of the U-shaped support plate 28 will cause the abutment rod 231 to tilt and slide on the arc abutment plate 235. Driven by the unloaded spring 234, the impact force extends and strikes the material plug 236, causing it to detach from the anchor body 1. As a result, the abutment rod 231 extends out of the anchor body 1 and presses against the inner wall of the tunnel, improving the structural safety in the tunnel project. Subsequently, the anchor body 1 needs to be pulled back so that the grouting cylinder 12 is automatically reset by the spring 22. In this way, the sliding rod 26 in one end of the arc ring groove will slide in the inner wall of the arc ring groove when the rotating cylinder 23 is reset by force. Under this dynamic, the rotating cylinder 23 will reset while rotating and moving upward, thereby driving the sleeve plate 25 to rotate above the other ball rod 29 without colliding with the previously pressed ball rod 29. At this time, the sharp end of each passively extended cone plate 240 will be nailed into the inner wall of the tunnel. At the same time, when the grouting cylinder 12 is retracted into the anchor body 1 under force, the grout plug 238 that is stuck on the anchor head 11 will be separated from the grouting hole in the anchor head 11 by the two L-shaped rods 237 at the bottom end, and will adhere to the surface of the anchor head 11 and the grouting cylinder 12. The impact force of subsequent cement grouting will easily drive the lightweight grout plug 238 upward, so that it will not hinder the cement grouting process.

[0029] 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.

[0030] 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.

Claims

1. A tunneling machine anchor bolt support mechanism, comprising an anchor bolt body (1), characterized in that: An anchor head (11) is provided above the anchor body (1). A grouting hole is provided through the center of the anchor head (11). A grouting tube (12) is fixedly connected through the inner wall of the bottom end of the anchor head (11). The bottom outer wall of the grouting tube (12) and the inner wall of the anchor body (1) are slidably connected. A gasket (13) is attached to the outer wall of the anchor body (1) near the bottom end. One end of the outer wall of the gasket (13) is fixed A nut (14) is connected to the outer wall of the anchor body (1) by a thread. A support part (2) is provided between the inner wall of the anchor body (1) and the body of the grouting cylinder (12). The support part (2) includes two sets of disc plates (21) provided on the outer wall of the grouting cylinder (12). The two sets of disc plates (21) are specifically one large and one small. Each set of disc plates (21) is provided with an elastic pressing structure.

2. The tunneling machine anchor bolt support mechanism according to claim 1, characterized in that: Each of the small disc plates (21) has a pressure block attached to the outer wall on both sides of the top. The two pressure blocks are fixedly connected to the outer walls of both ends of the grouting cylinder (12). Each set of disc plates (21) is slidably connected to the pipe body of the grouting cylinder (12). The outer wall of each large disc plate (21) is also fixedly connected to the inner wall of the anchor body (1).

3. The tunneling machine anchor bolt support mechanism according to claim 2, characterized in that: Each elastic pressing structure includes a spring (22), the upper and lower ends of which are fixedly connected to the outer wall of one end of a large and one small disc plate (21), and a rotating cylinder (23) is also fixedly connected to the outer wall of the grouting cylinder (12).

4. The tunneling machine anchor bolt support mechanism according to claim 3, characterized in that: The outer wall of the rotating cylinder (23) is provided with an arc groove (24). The arc groove (24) is specifically composed of a vertical arc corner groove and an arc ring groove around the upper and lower ends of the vertical arc corner groove. A sleeve plate (25) is fixedly connected to the bottom outer wall of the rotating cylinder (23). The sleeve plate (25) is rotatably connected to the outer wall of the grouting cylinder pipe (12).

5. The tunneling machine anchor bolt support mechanism according to claim 4, characterized in that: A sliding rod (26) is slidably connected to the inner wall of the vertical arc groove, and the sliding rod (26) and the inner wall of the arc groove can also be slidably connected. The other end of the sliding rod (26) is fixedly connected to the inner wall of the anchor body (1), and the sliding rod (26) is specifically an elastic telescopic rod.

6. The tunneling machine anchor bolt support mechanism according to claim 5, characterized in that: A rotating rod (27) is fixedly connected to the inner wall of the anchor body (1). A U-shaped support plate (28) is movably sleeved on the rod body of the rotating rod (27). A ball rod (29) is fixedly connected to the outer walls of both ends of the U-shaped support plate (28) near the top. The bottom side plate of the sleeve plate (25) and the top of the ball rod (29) can be fitted together. A rotating shaft (230) is fixedly connected to the inner wall of the U-shaped support plate (28) near the bottom.

7. The tunneling machine anchor bolt support mechanism according to claim 6, characterized in that: A stop rod (231) is slidably connected to the shaft (230), and a rectangular groove (232) is provided through the top of the stop rod (231). A sleeve (233) is slidably connected to the outer wall of the stop rod (231).

8. The tunneling machine anchor bolt support mechanism according to claim 7, characterized in that: A spring 2 (234) is fixedly connected between the bottom outer wall of the sleeve (233) and a section of the rod of the abutment (231). An arc abutment plate (235) is fixedly connected in the side wall of the anchor body (1). The top of the arc abutment plate (235) and the bottom outer wall of the abutment (231) are in close sliding connection.

9. The tunneling machine anchor bolt support mechanism according to claim 8, characterized in that: The anchor rod body (1) is connected to a material plug (236) through one end of the side wall of the arc abutment plate (235), and the bottom end of the abutment rod (231) and the inner wall of the material plug (236) can fit together.

10. The tunneling machine anchor bolt support mechanism according to claim 9, characterized in that: The material plug (236) and the grout plug (238) are both made of non-active mineral admixture material. L-shaped rods (237) are fixedly connected to both sides of the top of the anchor rod body (1). The rods of the two L-shaped rods (237) are slidably connected to the two sides of the anchor head (11). A grout plug (238) is attached to the top rods of the two anchor heads (11). The grout plug (238) is snapped into the inner wall of the grouting hole. The bottom plate of the grouting cylinder (12) is provided with multiple arc grooves (239), and each arc groove (239) has a conical plate (240) attached to its inner wall. Each conical plate (240) is also slidably connected to the rod of the anchor body (1).

Images