Parallel operation system for heading machine and heading machine

Abstract

The invention provides a parallel operation system for a heading machine and the heading machine wherein the parallel operation system comprises an operation device and a displacement compensation mechanism for connecting the operation device and a main frame. The displacement compensation mechanism comprises a guide structure installed on the main machine frame, wheels in sliding fit with the guide structure in the axial direction of the main machine frame, a bearing mechanism fixedly connected with the wheels to bear operation equipment, and a translation oil cylinder used for driving the wheels or the bearing mechanism to translate in the direction opposite to the drilling direction. The displacement compensation mechanism is used for compensating the advancing displacement of the heading machine main machine structure so as to ensure that the operation equipment can keep a preset operation posture relative to a tunnel operation face, the purpose that the heading machine and the operation equipment conduct construction at the same time is achieved, and the construction efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of tunneling machine equipment technology, and in particular to a parallel operation system for a tunneling machine and a tunneling machine. Background Technology

[0002] In general, tunneling using open-face tunneling machines requires prior geological exploration. If the drilling reveals fractured strata or other unfavorable geological conditions in front of the tunneling machine, the drilling equipment needs to insert drill rods into the surrounding rock in front of the machine and inject grout through the drill rods to improve the stability of the surrounding rock through pretreatment. Currently, tunneling machines and operating equipment cannot operate synchronously; that is, the tunneling machine cannot simultaneously perform exploration and pretreatment operations during tunneling. If the operating equipment requires exploration or pretreatment, the tunneling machine must be stopped and wait, affecting construction efficiency and extending the construction period.

[0003] In view of this, it is necessary to design a parallel operation system for tunneling machines and a tunneling machine to solve one of the above problems. Summary of the Invention

[0004] This application provides a parallel operation system for a tunneling machine and a tunneling machine, which achieves the purpose of parallel construction of the main structure and operating equipment of the tunneling machine.

[0005] To achieve the above objectives, the technical solution provided in this application is as follows: This application provides a parallel operation system for a tunnel boring machine (TBM). The TBM includes a main frame, and the parallel operation system includes a working device and a displacement compensation mechanism for connecting the working device and the main frame. The displacement compensation mechanism includes a guide structure mounted on the main frame, a wheel that slides along the axial direction of the main frame with the guide structure, a support mechanism fixedly connected to the wheel to support the working device, and a translation cylinder for driving the wheel or the support mechanism to translate in the opposite direction to the drilling direction. The displacement compensation mechanism is used to compensate for the forward displacement of the TBM's main structure to ensure that the working device can maintain a predetermined working posture relative to a tunnel face.

[0006] Furthermore, the displacement compensation mechanism includes four guide structures and four wheels corresponding to each guide structure. The four guide structures are arranged symmetrically with the axis of the main frame as the center.

[0007] Furthermore, the guide structure has at least one guide surface, and the wheel has a groove and a contact surface located within the groove and cooperating with the guide surface.

[0008] Furthermore, the cross-section of the guide structure is rhomboid, the guide surface corresponds to one side of the rhombus, the angle between the guide surface and the horizontal plane is 30°-60°, the groove is V-shaped, and the contact surface is the inner wall surface of the groove.

[0009] Furthermore, the bearing mechanism includes a gear ring structure sleeved on the outer circumferential side of the main frame, a fixing structure for fixing the gear ring structure, a gear meshing with the gear ring structure, a drive motor that drives the gear to rotate along the gear ring structure, a base connected to the drive motor, the wheel being connected to the fixing structure, the working equipment being mounted on the base, and the drive motor driving the gear to rotate along the gear ring to drive the working equipment mounted on the base to rotate circumferentially around the gear ring structure.

[0010] Furthermore, the gear ring structure includes a body and a gear ring fixed to the radial end of the body. The fixing structure includes an L-shaped fixing ring plate and a reinforcing ring plate. The fixing ring plate extends in the same direction as the gear ring structure and is fixed to the body. The end of the reinforcing ring plate near the fixing ring plate extends to the side of the body. Furthermore, the bearing mechanism also includes a pair of connecting structures fixedly connected to both ends of the lower part of the base, a plurality of main support wheels and a plurality of guide wheels on the connecting structures, the main support wheels respectively abutting the upper and lower ends of the reinforcing ring plate, and the guide wheels located on both sides of the main support wheels laterally and respectively abutting the axial side of the reinforcing ring plate.

[0011] Furthermore, the translation cylinder includes a cylinder mounting base and a guide arm connected to the cylinder mounting base. The cylinder mounting base is fixedly connected to the main frame, and one end of the guide arm away from the cylinder mounting base is fixedly connected to a fixed structure.

[0012] Furthermore, the working equipment includes a main beam, a mounting component for mounting drill rods, a drive mechanism for driving the mounting component to drive the drill rods to drill, and a pitch adjustment mechanism for adjusting the drilling direction. The main beam is positioned higher than the bearing mechanism, and the pitch adjustment mechanism includes a mounting base fixedly connected to the base. The pitch adjustment mechanism drives the main beam to rotate around a transverse axis.

[0013] This application also provides a tunneling machine, wherein the tunneling machine includes a main frame and the above-mentioned parallel operation system for the tunneling machine is mounted on the main frame.

[0014] Compared with related technologies, the beneficial effects of this application are as follows: the displacement compensation mechanism in the parallel operation system for tunneling machines of this application can be moved backward relative to the main frame of the tunneling machine to compensate for the forward displacement of the main structure of the tunneling machine, so that the working device can maintain a predetermined working posture relative to a tunnel working face during the operation of the main structure, thereby achieving the purpose of parallel construction of the main structure of the tunneling machine and the working equipment, and improving the construction efficiency. Attached Figure Description

[0015] Figure 1 This is a front view of a parallel operation system according to an embodiment of the parallel operation system for tunneling machines in this application.

[0016] Figure 2 yes Figure 1 Enlarged view of the local structure at point A in the middle.

[0017] Figure 3 yes Figure 1 Enlarged view of the local structure at point B in the middle.

[0018] Figure 4 yes Figure 1 Side view of a parallel operation system.

[0019] Figure 5 yes Figure 4 Enlarged view of the local structure at point C.

[0020] Figure 6 This is a side view of a tunneling machine according to one embodiment of the tunneling machine of this application.

[0021] Figure 7 yes Figure 6 Front view of the tunnel boring machine.

[0022] Among them, 1-working equipment, 11-main beam, 12-installation component, 121-drill pipe joint, 122-transition joint, 13-drive mechanism, 131-rack, 132-stepping device, 133-rotating device, 14-pitch adjustment mechanism, 141-mounting base, 142-forward pitch cylinder, 143-rear pitch cylinder, 144-support connecting rod, 145-first hinge point, 146-second hinge point, 147-third hinge point, 148-fourth hinge point, 149-fifth hinge point, 15-orientation mechanism, 2-displacement compensation mechanism, 21-guide structure, 211-guide surface, 22-wheel, 221-groove, 222-contact surface, 23-bearing capacity. Mechanism, 231-Gear ring structure, 2311-Body, 2312-Gear ring, 232-Fixing structure, 2321-Fixing ring plate, 2322-Reinforcing ring plate, 2323-Mounting base plate, 2324-Supporting rib, 2325-Upper gear ring section, 2326-Lower gear ring section, 2327-Side gear ring section, 233-Gear, 234-Drive motor, 235-Base, 2351-Base plate, 2352-Transition platform, 2236-Connecting structure, 2361-Vertical plate, 2362-Mounting plate, 237-Main support wheel, 238-Guide wheel, 24-Translation cylinder, 24-Mounting seat, 242-Guide arm, 25-Standing platform, 3-Main frame. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0024] It should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the purpose of simplifying the description of this application, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application. Specifically, in this application, the direction towards the ground is defined as "lower," the direction away from the ground is defined as "upper," and the drilling direction of the tunnel boring machine is the depth direction of the tunnel, that is, the axis of the tunnel boring machine.

[0025] In the various figures of this application, for ease of illustration, certain dimensions of structures or parts may be exaggerated relative to other structural parts; therefore, they are only used to illustrate the basic structure of the subject matter of this application.

[0026] This application provides a parallel operation system for tunneling machines, specifically for open-face tunneling machines, such as... Figures 1 to 7 As shown, the tunneling machine includes a main frame 3, and the parallel operation system includes a working device 1 and a displacement compensation mechanism 2 for connecting the working device 1 and the main frame 3. The displacement compensation mechanism 2 is used to compensate for the forward displacement of the main structure of the tunneling machine, so as to ensure that the working device 2 can maintain a predetermined working posture relative to a tunnel working face, thereby achieving the purpose of simultaneous operation of the working device 2 and the main structure of the tunneling machine, and improving the work efficiency of construction.

[0027] The working equipment 1 in this application includes, but is not limited to, a pre-directional drilling rig or a rock bolt drilling rig. The working equipment 1 is installed on the main frame 3 through a displacement compensation mechanism 2. During the drilling process of the tunneling machine, the working equipment 1 is used to explore the geological conditions ahead in advance. If unfavorable geological conditions such as fractured strata are encountered, grouting reinforcement or pipe roof reinforcement is required through the working equipment 1. This application takes the pre-directional drilling rig as an example for detailed explanation. The working equipment 1 of this application increases the coverage of the construction by adjusting the angle of the inclined insertion of the mounting part 12, while reducing the area of ​​drill rod overlap and increasing the drilling distance.

[0028] Specifically, such as Figure 1 and Figure 4 As shown, the working equipment 1 includes a main beam 11, a mounting component 12 for mounting the drill rod, a drive mechanism 13 for driving the mounting component 12 to drive the drill rod to drill, and a pitch adjustment mechanism 14 for adjusting the drilling direction. The pitch adjustment mechanism 14 includes a mounting base 141 connected to the displacement compensation mechanism 2. Through the coordinated cooperation of the components, the pitch adjustment mechanism 14 drives the main beam 11 to rotate around a transverse axis, thereby adjusting the drilling direction of the drill rod.

[0029] like Figure 4 As shown, the main beam 11 is a long, rigid support used to support and fix the mounting component 12, the drive mechanism 13, and the pitch adjustment mechanism 14. The extension direction of the main beam 11 is the drilling direction, and when the main beam 11 is in a horizontal state, the drilling direction is the axial direction of the tunnel.

[0030] The mounting component 12 includes a drill pipe joint 121, a transition joint 122 rotatably connected to the drill pipe joint 121, a main body connected to the rear end of the transition joint 122, and a delivery pipe installed at the rear end of the main body. The drill pipe joint 121 is used to connect the drill pipe. The mounting component 12 is a hollow design. When it is necessary to fix the front of the tunneling machine, high-pressure fluid is injected into the drill pipe through the delivery pipe end. The fluid passes sequentially through the main body, the drill pipe joint 121, the drill pipe threaded to the drill pipe joint 121, and the spiral drill bit at the other end of the drill pipe. The high-pressure fluid (water or mud) is delivered to the spiral drill bit through the drill pipe. The spiral drill bit can rotate under the power of the high-pressure fluid, providing some power for drilling. When it is necessary to explore the geological conditions ahead in advance, the spiral drill bit is first disassembled, and then a cylindrical measuring device is delivered into the mounting component 12 to the front of the drill pipe to obtain the geological conditions in advance.

[0031] The working device 1 of this application uses a spiral drill bit. Forward rotation will generate a forward thrust between the spiral drill bit and the rock mass. Therefore, under the action of the spiral drill bit's own thrust and the drive mechanism 13, it is guaranteed that a sufficiently long distance can be drilled in a single operation. Reverse rotation will generate a backward thrust between the spiral drill bit and the rock mass.

[0032] The transition joint 122 is used to connect the main body and the drill pipe joint 121. The design of the transition joint 122 facilitates the disassembly and installation of the drill pipe joint 121. In the event of wear of the drill pipe joint 121, it is convenient to disassemble the drill pipe joint 121 for repair or replacement.

[0033] The drive mechanism 13 includes a rack 131 mounted on the main beam 11 and a stepping device 132 meshing with the rack 131. The rack 131 is arranged along the drilling direction. The stepping device 132 can generate a large forward thrust or backward pull. The mounting part 12 is mounted on the stepping device 132. The thrust generated by the stepping device 132 can be transmitted to the spiral drill bit through the drill rod. The combined action of the two enables long-distance drilling in rock formations.

[0034] The drive mechanism 13 includes a rotating device 133 mounted on the stepping device 132. The rotating device 133 is connected to the mounting component 12 and drives the drill rod or drill bit to rotate forward or backward around the axial direction. The forward and reverse rotation of the rotating device 133 enables the connection and disconnection of the drill rod.

[0035] When installing the drill rod, the drive mechanism 13 retracts to the rear end of the main beam 11. After the drill rod is installed, the stepping device 132 begins to advance along the rack 131. Under the coordinated drive of the spiral drill bit, the stepping device 132 and the rotating device 133, the drill rod drills into the fractured stratum area to be reinforced.

[0036] The elevation adjustment mechanism 14 drives the main beam 11 to rotate around a transverse axis, thereby adjusting the angle at which the front end of the main beam 11 is raised or lowered, and thus adjusting the direction of drill rod insertion. In this application, the transverse axis is a virtual straight line, which is perpendicular to the straight line where the axial direction is located. With the main beam 11 in the horizontal direction as 0°, the rotation angle of the main beam 11 is -5° to 25° to meet the requirements of the drill rod for the angle of the main beam 11 under different construction conditions such as drilling, grouting or curing.

[0037] The pitch adjustment mechanism 14 further includes a front pitch cylinder 142 hinged to one end of the main beam 11 and the mounting base 141, and a rear pitch cylinder 143 hinged to the other end of the main beam 11 and the mounting base 141. The main beam 11, the mounting base 141, the front pitch cylinder 142, and the rear pitch cylinder 143 form a quadrilateral. The mounting base 141 is the base of the quadrilateral and is used to mount the working equipment 1 on the main frame 3. The front pitch cylinder 142 and the rear pitch cylinder 143 are the two sides of the quadrilateral. The front pitch cylinder 142 is located in front of the main beam 11 relative to the rear pitch cylinder 143.

[0038] When the main beam 11 needs to increase its rotation angle, the telescopic arm of the forward tilting cylinder 142 is extended, while the telescopic arm of the rear tilting cylinder 143 is in a retracted state. At this time, the front end of the main beam 11 rotates upward around the hinge point where the forward tilting cylinder 142 and the mounting base 42 are connected. The rotation angle depends on the length of the opening of the telescopic arm of the forward tilting cylinder 142. Correspondingly, when the main beam 11 needs to decrease its rotation angle, the length of the opening of the telescopic arm of the rear tilting cylinder 143 is adjusted, while the telescopic arm of the forward tilting cylinder 142 is in a retracted state. The rear end of the main beam 11 rotates upward around the hinge point where the rear tilting cylinder 143 and the mounting base 141 are connected.

[0039] Of course, when it is necessary to move the working equipment 1 as a whole upward, the forward tilting cylinder 142 and the rear tilting cylinder 143 can be operated simultaneously to open the telescopic arm and move the working equipment 1 as a whole upward.

[0040] The telescopic arms of the forward tilting cylinder 142 and the backward tilting cylinder 143 are both shorter than the length of the mounting base 141. The mounting base 141 is longer, which increases the support area for fixing the entire advanced directional drilling rig 1 and effectively improves the stability of the working equipment 1.

[0041] The forward tilting cylinder is hinged to the main beam 11 to form a first hinge point 145, and the rear tilting cylinder 143 is hinged to the main beam 11 to form a second hinge point 146. The length of the mounting base 141 is less than the distance between the first hinge point 145 and the second hinge point 146. Both the forward tilting cylinder 142 and the rear tilting cylinder 143 are in an outward tilting state, which can decompose the pressure of the main beam 11 and other components on the main beam 11 on the displacement compensation mechanism 2, thereby improving the structural strength and stability of the working equipment 1.

[0042] The mounting base 141 is hinged to the rear tilt cylinder 143 to form a third hinge point 147. The pitch adjustment mechanism 14 also includes a support link 144 that is hinged to the first hinge point 145 and the third hinge point 147 respectively. The support link 144, the forward tilt cylinder 142 and the mounting base 141 form a structurally stable triangle. When the rear tilt cylinder 143 is extended, the center of gravity of the working equipment 1 falls on the triangle formed by the support link 144, the forward tilt cylinder 142 and the mounting base 141. When the rotation angle of the main beam 11 is negative, the stability of the working equipment 1 is improved.

[0043] Similarly, when the forward tilting cylinder 142 is in the telescopic state, the support link 144 can decompose the pressure applied by the working equipment 1 to the forward tilting cylinder 142, thereby improving the overall stability of the working equipment 1.

[0044] The forward tilting cylinder 142 and the mounting base 141 form a fourth hinge point 148. The height of the third hinge point 147 is higher than the height of the fourth hinge point 148. When both the forward tilting cylinder 142 and the rear tilting cylinder 143 are in their initial retracted state, the front end of the main beam 11 is slightly higher than the rear end, meaning the main beam 11 always maintains an angle with the horizontal line, meeting the angle requirements for grouting and curing by the working equipment 1. When drilling forward through the working equipment 1, the telescopic arm of the rear tilting cylinder 143 is extended, causing the main beam 11 to rotate around the line where the third hinge point 147 is located, thereby adjusting the drilling angle.

[0045] The support link 147 is hinged to the main beam 11 to form a fifth hinge point 149. The fifth hinge point 149 and the first hinge point 145 are arranged vertically on the same connecting plate, so that the forward tilting cylinder 142 and the support link 144 are on the same plane. When the tilting adjustment mechanism 14 is subjected to pressure, no external force is generated on the side, which further improves the overall stability of the working equipment 1.

[0046] The length of the support link 144 is greater than the length of the mounting base 141 and less than the distance between the first hinge point 145 and the second hinge point 146. The support link 144 also forms a triangle with the main beam 11 and the rear tilting cylinder 143, which helps to decompose the pressure applied to the rear tilting cylinder 43 and improve the overall stability of the working equipment 1.

[0047] The working equipment 1 also includes a directional mechanism 15 installed at the front of the main beam 11. The axis of the directional mechanism 15 and the axis of the mounting component 12 are on the same straight line. The directional mechanism 15 can locally adjust the direction of the drill rod insertion into the rock and soil, so that the drill rod has a certain turning ability in the initial stage. After the pitch adjustment mechanism 14 adjusts the angle of the main beam 11 and determines the drilling direction, the drill rod is accurately positioned at the position to be fixed by means of the directional mechanism 15. When the drill rod is inserted obliquely into the hard rock layer, it gradually changes from oblique insertion to straight insertion, reducing the overlapping area of ​​the drill rod in the hard rock and effectively increasing the drilling distance.

[0048] like Figures 1 to 5 As shown, the displacement compensation mechanism 2 includes a guide structure 21 mounted on the main frame 3, a wheel 22 that slides along the axial direction of the main frame 3 with the guide structure 21, a support mechanism 23 fixedly connected to the wheel 22 to support the working equipment 1, and a translation cylinder 24 for driving the wheel 22 or the support mechanism 23 to translate in the opposite direction of the drilling direction. When the main component of the tunneling machine is drilling forward normally, the translation cylinder 24 indirectly drives the working equipment 1 to move backward relative to the main frame 3, so as to maintain the working equipment 1 in a predetermined working posture relative to a tunnel working face. That is, the working equipment 1 is relatively stationary relative to the side wall of the tunnel, so as to continue to complete the ongoing construction work. The drilling of the tunneling machine will not affect the working equipment 1, so as to achieve the purpose of simultaneous construction of the working equipment 1 and the main component of the tunneling machine.

[0049] The guide structure 21 is fixed to the main frame 3 by a steel plate. The guide structure 21 guides the translation of the wheel 22, so that the wheel 22 can move smoothly along the main frame 3.

[0050] like Figure 1 As shown, the displacement compensation mechanism includes four guide structures 21 and four wheels 22 corresponding to each guide structure 21. The four guide structures 21 are arranged symmetrically around the axis of the main frame 3, which increases the number of mating points between the bearing mechanism 23 and the main frame 3 and improves the bonding strength between the bearing mechanism 23 and the main frame 3.

[0051] like Figure 3As shown, the guide structure has at least one guide surface 211, and the wheel 22 has a groove 221 and a contact surface 222 located within the groove 221 and cooperating with the guide surface 211. The groove 221 can limit the wheel 22 in the vertical translation direction, preventing the wheel 22 from deviating from the translation direction.

[0052] Furthermore, the cross-section of the guide structure 21 is rhomboid, the guide surface 211 corresponds to one side of the rhombus, the groove 221 is V-shaped, and the contact surface 222 is the inner wall surface of the groove.

[0053] The angle between the guide surface 211 and the horizontal plane is 30°-60°. Preferably, the angle between the guide surface 211 and the horizontal plane is 45°. Correspondingly, the contact surface 222 is also at 45° to the horizontal plane. The guide surface 211 located below can also support the wheel 22. Similarly, the contact surface 222 located below also supports the guide structure 21.

[0054] In this application, there are two guide surfaces 211, which respectively contact the two contact surfaces 222 of the groove 221. The two guide surfaces 211 form the corner positions of a rhombus, which further increases the bonding strength between the wheel 22 and the guide structure 21.

[0055] The supporting mechanism 23 is positioned below the main beam 11, providing sufficient space for the operation equipment 1 to rotate.

[0056] like Figure 2 and Figure 5 As shown, the supporting mechanism 23 includes a gear ring structure 231 sleeved on the outer periphery of the main frame 3, a fixing structure 232 for fixing the gear ring structure 231, a gear 233 meshing with the gear ring structure 231, a drive motor 234 driving the gear 233 to rotate along the gear ring structure 231, and a base 235 connected to the drive motor 234. The wheel 22 is connected to the fixing structure 232. The working device 1 is mounted on the base 235. The drive motor 234 drives the gear 233 to rotate along the gear ring structure 231 to drive the working device 1, which is supported on the base 235, to rotate circumferentially around the gear ring structure 231. This allows the working device 1 to not only rotate relative to itself along a transverse axis, but also to translate back and forth relative to the tunneling machine and rotate circumferentially around the tunneling machine, providing a flexible working space for the working device 1 and meeting the diverse operational needs of the working device.

[0057] like Figure 2 As shown, the toothed ring structure 231 includes a body 2311 and a toothed ring 2312 fixed to the radial end of the body 2311. The body 2311 is ring-shaped, and the toothed ring 2312 is distributed around the body 2311 in the radial direction.

[0058] The fixing structure 232 is fixed to the body 2311. Specifically, the fixing structure 232 includes an L-shaped fixing ring plate 2321 and a reinforcing ring plate 2322. The fixing ring plate 2321 extends in the same direction as the gear ring structure 231 and is fixed to the gear ring structure 231. The fixing ring plate 2321 is fixed to the body 2311 by bolts. The reinforcing ring plate 2322 extends to the side of the body 2311 near the end of the fixing ring plate 2321. Generally, the fixing ring plate 2321 and the reinforcing ring plate 2322 are fixed together and then fixed to the body 2311.

[0059] It is understood that the fixed ring plate 2321 and the reinforcing ring plate 2322 can also be integrally formed structures, which are also within the protection scope of this application.

[0060] like Figure 3 As shown, the fixing structure 232 further includes a mounting base plate 2323 disposed on the fixing ring plate 2321 for mounting the wheel 22, and support ribs 2324 for fixing the mounting base plate 2323 and the fixing ring plate 2321. Four mounting base plates 2323 and four support ribs 2324 are provided, corresponding to the wheel 22. The support ribs 2324 and the wheel 22 are located on both sides of the mounting base plate 2323, thereby strengthening the structural strength of the fixing structure 232.

[0061] In this application, the gear ring structure 231 and the fixing structure 232 are arranged to form a gear ring assembly. The gear ring assembly is designed in segments to facilitate hoisting and installation. Specifically, the gear ring assembly includes an upper gear ring segment 2325, a lower gear ring segment 2326, and a side gear ring segment 2327 located between the upper gear ring 2325 and the lower gear ring 2326, and the various parts are connected by flanges.

[0062] The curvature of the upper gear segment 2325 is the same as that of the lower gear segment 2326, while the curvature of the side gear segment 2327 is greater than that of the upper gear segment 2325 and the lower gear segment 2326. Preferably, the curvature of the upper gear segment 2325 and the lower gear segment 2326 is 36°, the curvature of the side gear segment 2327 is 144°, and the tooth pitch at the joint of each gear segment is consistent with the standard tooth pitch.

[0063] The gear 233 meshes with the gear ring 2312 to ensure the stability of the gear 233 when rotating relative to the gear ring 2312.

[0064] like Figure 2As shown, the base 235 includes a base plate 2351 and a transition platform 2352 mounted on the upper part of the base plate 2351. The transition platform 2352 is set higher than the drive motor 234 to provide clearance space for the working equipment 1 to adjust its direction and to prevent the working equipment 1 from interfering with the drive motor 234.

[0065] like Figure 5 As shown, the bearing mechanism 23 also includes a pair of connecting structures 236 fixedly connected to the lower ends of the base 235, a plurality of main support wheels 237 and a plurality of guide wheels 238 on the connecting structures 236. The main support wheels 237 are respectively attached to the upper and lower ends of the reinforcing ring plate 2322 and bear the weight of the entire bearing mechanism 23 and the working equipment 1. The guide wheels 238 are located on both sides of the main support wheels 237 in the lateral direction and are respectively attached to the axial side of the reinforcing ring plate 2322. When the gear 233 rotates relative to the gear ring 2312, it plays a guiding and limiting role. On the one hand, it can improve the smoothness of rotation, and on the other hand, it can prevent lateral rolling or shaking when the gear ring structure 231 is subjected to force, ensuring stable meshing between the gear 233 and the gear ring 2312.

[0066] The connection structure 236 includes a longitudinal plate 2361 connected to the bottom of the substrate 2351 and a mounting plate 2362 mounted on the bottom of the longitudinal plate 2361. The longitudinal plate 2361 has a bottom surface, and the mounting plate 2362 is disposed outward relative to the bottom surface. The upper end of the reinforcing ring plate 2322 is in contact with the bottom surface, and the side end of the reinforcing ring plate 2322 is in contact with the mounting plate 2362, thereby improving the structural strength and stability of the bearing mechanism 23.

[0067] like Figure 6 As shown, the translation cylinder 24 includes a cylinder mounting base 241 and a guide arm 242 connected to the cylinder mounting base 241. The cylinder mounting base 241 is fixedly connected to the main frame 3. One end of the guide arm 242 away from the cylinder mounting base 241 is fixedly connected to the fixed structure 232. Specifically, the guide arm 242 is fixed on the fixed ring plate 2321. Through the extension and retraction of the translation cylinder 24, the bearing mechanism 23 is translated relative to the main frame 3 along the ground with the assistance of the wheels 22 and the guide structure 21.

[0068] like Figure 6 As shown, the displacement compensation mechanism 2 also includes a standing platform 25 fixedly installed on the fixed ring plate 2321. The standing platform 25 is installed on the fixed ring plate 2321 through a flange and forms an integral part with the fixed structure 232, so as to achieve the effect of moving relative to the main frame 3 at the same time.

[0069] The manned platform 25 is located on the rear side of the working equipment 1, which facilitates the operation of the working equipment 1 by construction personnel on the manned platform 25.

[0070] This application also provides a tunneling machine, such as Figure 6 and Figure 7 As shown, it includes a main frame 3 and the aforementioned parallel operation system for the tunneling machine. The parallel operation system is installed on the main frame 3. Specifically, the guide structure 21 is fixed to the main frame 3 by a steel plate, thereby causing the displacement compensation mechanism 2 and the operating equipment 1 installed on the displacement compensation mechanism 2 to translate relative to the main frame 3.

[0071] Of course, the displacement compensation mechanism 2 can also carry the working equipment 2 to move relative to the main frame 3 in the drilling direction to meet the flexible operation requirements of the working equipment 1.

[0072] In summary, the displacement compensation mechanism 2 in the parallel operation system for tunneling machines of this application, which carries the working device 1, can move backward relative to the main frame 3 of the tunneling machine to compensate for the forward displacement of the main structure of the tunneling machine. This allows the working device 1 to maintain a predetermined working posture relative to a tunnel working face during the operation of the main structure, thereby achieving the purpose of parallel construction of the main structure of the tunneling machine and the working device 1 and improving construction efficiency.

[0073] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0074] The detailed descriptions listed above are merely specific illustrations of feasible embodiments of this application and are not intended to limit the scope of protection of this application. All equivalent embodiments or modifications made without departing from the spirit of the art of this application should be included within the scope of protection of this application.

Claims

1. A parallel operation system for a tunneling machine, for an open-face tunneling machine, the tunneling machine including a main frame, characterized in that, The parallel operation system includes a working device and a displacement compensation mechanism for connecting the working device and the main frame. The displacement compensation mechanism includes a guide structure mounted on the main frame, a wheel that slides along the axial direction of the main frame with the guide structure, a support mechanism fixedly connected to the wheel to support the working device, and a translation cylinder for driving the wheel or the support mechanism to translate in the opposite direction of the drilling direction. The displacement compensation mechanism is used to compensate for the forward displacement of the tunneling machine's main structure to ensure that the working device can maintain a predetermined working posture relative to a tunnel working face.

2. The parallel operation system for a tunneling machine as described in claim 1, characterized in that, The displacement compensation mechanism includes four guide structures and four wheels corresponding to each guide structure. The four guide structures are arranged symmetrically with the axis of the main frame as the center.

3. The parallel operation system for a tunneling machine as described in claim 1, characterized in that, The guide structure has at least one guide surface, and the wheel has a groove and a contact surface located within the groove and cooperating with the guide surface.

4. The parallel operation system for a tunneling machine as described in claim 3, characterized in that, The cross-section of the guide structure is rhomboid, the guide surface corresponds to one side of the rhombus, the angle between the guide surface and the horizontal plane is 30°-60°, the groove is V-shaped, and the contact surface is the inner wall surface of the groove.

5. The parallel operation system for a tunneling machine as described in claim 1, characterized in that, The bearing mechanism includes a gear ring structure sleeved on the outer circumferential side of the main frame, a fixing structure for fixing the gear ring structure, a gear meshing with the gear ring structure, a drive motor that drives the gear to rotate along the gear ring structure, and a base connected to the drive motor. The wheel is connected to the fixing structure, and the working equipment is mounted on the base. The drive motor drives the gear to rotate along the gear ring to drive the working equipment mounted on the base to rotate circumferentially around the gear ring structure.

6. The parallel operation system for a tunneling machine as described in claim 5, characterized in that, The gear ring structure includes a body and a gear ring fixed to the radial end of the body. The fixing structure includes an L-shaped fixing ring plate and a reinforcing ring plate. The fixing ring plate extends in the same direction as the gear ring structure and is fixed to the body. The end of the reinforcing ring plate near the fixing ring plate extends to the side of the body.

7. The parallel operation system for a tunneling machine as described in claim 6, characterized in that, The bearing mechanism further includes a pair of connecting structures fixedly connected to both ends of the lower part of the base, a plurality of main support wheels and a plurality of guide wheels disposed on the connecting structures, the main support wheels respectively abutting the upper and lower ends of the reinforcing ring plate, and the guide wheels located on both sides of the main support wheels laterally and respectively abutting the axial side of the reinforcing ring plate.

8. The parallel operation system for a tunneling machine as described in any one of claims 1 to 7, characterized in that, The translation cylinder includes a cylinder mounting base and a guide arm connected to the cylinder mounting base. The cylinder mounting base is fixedly connected to the main frame, and one end of the guide arm away from the cylinder mounting base is fixedly connected to a fixed structure.

9. The parallel operation system for a tunneling machine as described in any one of claims 1 to 7, characterized in that, The working equipment includes a main beam, a mounting component for installing drill rods, a drive mechanism for driving the mounting component to drive the drill rods to drill, and a pitch adjustment mechanism for adjusting the drilling direction. The main beam is positioned higher than the load-bearing mechanism. The pitch adjustment mechanism includes a mounting base fixedly connected to the base. The pitch adjustment mechanism drives the main beam to rotate around a transverse axis.

10. A tunneling machine, characterized in that, Includes a main frame, and a parallel operation system for a tunneling machine as described in any one of claims 1 to 9, wherein the parallel operation system is mounted on the main frame.

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