Tunnel construction grouting trolley

Abstract

The invention discloses a tunnel construction grouting trolley, and relates to the technical field of tunnel construction, the tunnel construction grouting trolley comprises a trolley body, the bottom of the trolley body is provided with a connecting groove, the bottom of the trolley body is provided with a set of front-back symmetrical mounting grooves, and the mounting grooves are located on the two sides of the connecting groove; a steering mechanism is movably connected to the center of the interior of the connecting groove through a bearing, a control mechanism is fixedly connected to the interior of one mounting groove, jacking auxiliary guide mechanisms are fixedly connected to the output ends of the two sides of the control mechanism, and the two sides of the jacking auxiliary guide mechanisms are movably connected to the two sides of the connecting groove through rotating shafts. Stable jacking of the trolley body is achieved, a stable moving foundation and guide support are provided for follow-up steering, the heeling risk in the steering process is effectively prevented, secondly, turning-around operation can be flexibly completed in a narrow tunnel of a huge grouting trolley, the problem that traditional equipment is difficult to steer in a limited space is solved, and the construction efficiency is improved. And the construction efficiency and safety are obviously improved.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction technology, specifically a tunnel construction grouting trolley. Background Technology

[0002] In tunnel construction projects, grouting trolleys are key equipment for tasks such as surrounding rock reinforcement and water plugging and seepage prevention. They can carry personnel and machinery to move within the tunnel and complete efficient grouting work. With the expansion of modern transportation tunnel construction, higher requirements are placed on the passability, operational efficiency, and safety of construction machinery. As a large special vehicle, the rationality of the structure and the completeness of the functions of the grouting trolley are directly related to the construction progress and quality of tunnel projects.

[0003] Referring to Chinese invention patent, publication number CN 211974996 U, entitled "A Vehicle-Mounted Grouting Trolley," the trolley includes a vehicle body comprising a driver's cab and a cargo compartment. A grouting operation area is formed on the upper side of the cargo compartment, and grouting equipment is installed in the grouting operation area. A mobile platform is connected to the rear of the cargo compartment and can move synchronously with the cargo compartment. A slurry preparation area is formed on the upper side of the mobile platform, and slurry preparation equipment is installed in the slurry preparation area. The vehicle-mounted grouting trolley provided by this application has a simple and reasonable structure, is convenient to install and use, and the modified vehicle-mounted grouting trolley can meet the requirements of long-distance power generation tunnel grouting projects, significantly reducing the impact on excavation and pouring construction, and reducing the time required to transfer grouting equipment.

[0004] However, some problems still exist in actual use: Existing tunnel grouting trolleys face particular difficulties when turning and making U-turns within the confined space of tunnels. Due to the limited space inside the tunnel, traditional trolleys cannot turn as flexibly as they can on open roads. Drivers often need highly skilled operators to make repeated adjustments, and sometimes even require specialized auxiliary vehicles to complete the U-turn. This not only greatly reduces construction efficiency and increases working time and costs, but also makes it easy for the equipment to scrape against the tunnel wall during repeated adjustments, leading to safety accidents. Furthermore, relying solely on the vehicle's own steering system is insufficient to meet the operational needs under complex working conditions, severely restricting the level of mechanization in tunnel construction. Summary of the Invention

[0005] Technical problems to be solved The purpose of this invention is to overcome the shortcomings of existing tunnel construction grouting trolleys, such as difficulty in turning around in narrow spaces, cumbersome operation, and safety hazards. Technical solution

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tunnel construction grouting trolley, comprising a vehicle body, a connecting groove being provided at the bottom of the vehicle body, and a set of symmetrical mounting grooves being provided at the bottom of the vehicle body, with the mounting grooves located on both sides of the connecting groove. A steering mechanism is movably connected to the center of the connecting groove via a bearing. A control mechanism is fixedly connected to the interior of one of the mounting grooves. A lifting auxiliary guide mechanism is fixedly connected to the output ends on both sides of the control mechanism, and the two sides of the lifting auxiliary guide mechanism are movably connected to the two sides of the connecting groove via rotating shafts.

[0007] Furthermore, the lifting auxiliary guide mechanism includes two connecting rods, which are symmetrically arranged and whose two ends are movably connected to the inside of the connecting groove via rotating shafts. Two symmetrical support frames are fixedly connected to the outer sides of the two connecting rods, and the support frames are L-shaped. A stabilizing rod and a transmission rod are fixedly connected to the end of the support frame away from the connecting rod, and both ends of the stabilizing rod and the transmission rod pass through the support frame. The stabilizing rod is located directly below the transmission rod.

[0008] Furthermore, the two ends of the stabilizer bar and the transmission bar are movably connected to casters via pivots, and the outer side of the stabilizer bar is movably connected to two symmetrical pulleys via bearings.

[0009] Furthermore, the control mechanism includes a control motor, which is fixedly connected inside one of the mounting slots. The output end of the control motor is fixedly connected to a drive sprocket via a coupling. Transmission sprockets are provided on both sides of the drive sprocket, and the drive sprocket is connected to the two transmission sprockets via a chain.

[0010] Furthermore, a set of symmetrical tensioning wheels is provided on the opposite sides of the drive sprocket and the transmission chain, and the tensioning wheels are movably connected to the inner wall of the connecting groove through a rotating shaft, with the opposite sides of the tensioning wheels pressed against the outer side of the chain.

[0011] Furthermore, the control mechanism also includes two connecting rods, which are symmetrically arranged and movably connected to the top of the connecting groove via a rotating shaft. Both ends of the two connecting rods are fixedly connected to winding rollers, and the end of the winding rollers away from the connecting rods is fixedly connected to the shaft of the transmission sprocket.

[0012] Furthermore, a steel cable is wound around the outer side of the winding roller, and the other end of the steel cable slides through the hub of the pulley and is fixedly connected to a collar, which is fixedly connected to the outer side of the transmission rod.

[0013] Furthermore, the steering mechanism includes a stabilizing disc, the top of which is movably connected to the center of the connecting groove via a rotating shaft. A connecting hole is provided at the bottom of the stabilizing disc, and a cylinder is fixedly connected inside the connecting hole. A stabilizing seat is fixedly connected to the output end of the cylinder. Transmission teeth are arranged in a circular array on the outer side of the stabilizing disc.

[0014] Furthermore, the steering mechanism also includes a drive motor, which is fixedly connected inside another mounting slot. The output end of the drive motor is fixedly connected to a drive bevel gear via a coupling, and the drive bevel gear meshes with the stabilizer plate via transmission teeth.

[0015] Compared with existing technologies, this tunnel construction grouting trolley has the following advantages: I. This invention uses the linkage between the connecting rod and the support frame to force the L-shaped support frame to rotate around the pivot and gradually unfold outward. During this process, the end caster touches the ground first and continues to lift with the rotation until the vehicle body is completely lifted off the ground and the bottom of the support frame remains parallel to the ground. This not only achieves the smooth lifting of the vehicle body, but also provides a stable moving base and guiding support for subsequent steering, effectively preventing the risk of tilting during the steering process.

[0016] Second, this invention uses a drive sprocket and chain to drive the transmission sprockets on both sides to rotate synchronously, and sets up symmetrical tensioning wheels on the transmission path to keep them tightly attached to the chain, ensuring stability and efficiency in the power transmission process and eliminating chain slippage. At the same time, the use of winding rollers and connecting rods to achieve synchronous linkage can precisely control the length and force of the steel cable winding and unwinding, thereby accurately adjusting the expansion and retraction range of the support frame, realizing automated control of the lifting process, greatly reducing the intensity of manual labor and improving the accuracy of the operation.

[0017] Third, this invention utilizes a cylinder-driven stabilizing seat, which first locks the vertical displacement of the vehicle body after it is lifted and then drives the drive bevel gear to mesh with the transmission gear on the outside of the stabilizing plate, driving the vehicle body to rotate around the center of the stabilizing plate. This allows the large grouting trolley to flexibly complete turning operations even in narrow tunnels, solving the problem of difficult turning in confined spaces with traditional equipment and significantly improving construction efficiency and safety. Secondly, during the downward displacement of the stabilizing seat, the sliding ring is simultaneously pulled, causing the telescopic rod and the pull rope to move along the same trajectory. The telescopic rod extends downward, ensuring that the sliding ring rotates along the trajectory of the vehicle body when it turns around in place later. Furthermore, the top of the control rope pulls the retaining ring to slide inside the groove, and the return spring is compressed and deformed until the retaining ring meshes with the limit gear through the limit teeth, thereby preventing the connecting rod from swaying and weakening the binding force on the steel cable, which would affect the stability of the vehicle body when turning.

[0018] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention; Figure 3 This is a schematic diagram of the internal connection structure of the connecting groove of the present invention; Figure 4 This is a schematic diagram of the lifting auxiliary guide machine structure of the present invention; Figure 5 This is a schematic diagram of the control mechanism structure of the present invention; Figure 6 This is a schematic diagram of the control motor connection structure of the present invention; Figure 7 This is a schematic diagram of the steel cable connection structure of the present invention; Figure 8 This is a schematic diagram of the steering mechanism structure of the present invention. Figure 9 This is a schematic diagram of the sliding ring connection structure of the present invention.

[0020] In the diagram: 1. Vehicle body; 2. Connecting groove; 3. Mounting groove; 4. Steering mechanism; 401. Stabilizer plate; 402. Cylinder; 403. Stabilizer seat; 404. Transmission gear; 405. Drive motor; 406. Drive bevel gear; 5. Control mechanism; 501. Control motor; 502. Drive sprocket; 503. Transmission sprocket; 504. Tensioner wheel; 505. Connecting rod; 506. Winding roller; 507. Steel cable; 508. Collar; 6. Lifting auxiliary guide mechanism; 601. Connecting rod; 602. Support frame; 603. Stabilizer bar; 604. Transmission rod; 605. Universal wheel; 606. Pulley; 7. Connecting hole; 8. Sliding ring; 9. Telescopic rod; 10. Control rope; 11. Slide groove; 12. Snap ring; 13. Limit gear; 14. Track wheel; 15. Return spring. Detailed Implementation

[0021] 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.

[0022] like Figure 1-8As shown, the present invention provides a technical solution: a tunnel construction grouting trolley, including a vehicle body 1, a connecting groove 2 opened at the bottom of the vehicle body 1, a set of front and rear symmetrical mounting grooves 3 opened at the bottom of the vehicle body 1, and the mounting grooves 3 are located on both sides of the connecting groove 2. A steering mechanism 4 is movably connected to the center of the connecting groove 2 through a bearing. A control mechanism 5 is fixedly connected inside one of the mounting grooves 3. A lifting auxiliary guide mechanism 6 is fixedly connected to the output ends on both sides of the control mechanism 5, and the two sides of the lifting auxiliary guide mechanism 6 are movably connected to the two sides of the connecting groove 2 through a rotating shaft.

[0023] By setting the bottom of the vehicle body 1 as a structure combining the connecting groove 2 and the mounting groove 3, a collaborative operation framework is constructed. The control mechanism 5 and the steering mechanism 4 are respectively placed in the mounting groove 3, and the steering mechanism 4 is movably connected in the center of the connecting groove 2. This allows the control mechanism 5 to drive the lifting auxiliary guide mechanism 6 on both sides to rotate and unfold around the pivot, realizing an integrated and compact layout of the three major functions of lifting, supporting and steering. It makes full use of the bottom space of the vehicle body 1, effectively solving the problem that traditional trolleys cannot flexibly turn in narrow tunnels due to the lack of auxiliary support. It ensures that the vehicle can be smoothly lifted off the ground and make a precise turn on the spot, significantly improving construction efficiency and safety.

[0024] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 and Figure 8 As shown, the lifting auxiliary guide mechanism 6 includes two connecting rods 601. The two connecting rods 601 are symmetrically arranged and their two ends are movably connected to the inside of the connecting groove 2 through rotating shafts. Two symmetrical support frames 602 are fixedly connected to the outer sides of the two connecting rods 601. The support frames 602 are L-shaped. A stabilizing rod 603 and a transmission rod 604 are fixedly connected to the end of the support frame 602 away from the connecting rods 601, and both ends of the stabilizing rod 603 and the transmission rod 604 pass through the support frame 602. The stabilizing rod 603 is located directly below the transmission rod 604. The two ends of the stabilizing rod 603 and the transmission rod 604 are movably connected to casters 605 through rotating shafts. Two symmetrical pulleys 606 are movably connected to the outer side of the stabilizing rod 603 through bearings.

[0025] When the transmission rod 604 is pulled by the steel cable 507 of the control mechanism 5, the force is transmitted to the connecting rod 601 through the support frame 602, forcing the L-shaped support frame 602 to rotate outward around the pivot inside the connecting groove 2. During this process, the universal wheels 605 at its end first touch the ground. As the rotation continues, the lever structure formed by the support frame 602 gradually lifts the vehicle body 1 until the wheels leave the ground. This not only provides stable multi-point support during the lifting process, ensuring the stability of the vehicle body 1 after it is suspended in the air, but also effectively reduces frictional resistance by guiding the steel cable 507 through the pulley 606 on the stabilizer rod 603, making the lifting action smooth and efficient. When fully extended, the multiple sets of universal wheels 605 contact the ground to form a stable moving platform. Together with the parallel structure at the bottom of the support frame 602, this provides a solid mechanical foundation for subsequent steering operations, preventing rollover or swaying during the steering process, and greatly improving the safety and stability of operations in narrow tunnels.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the control mechanism 5 includes a control motor 501, which is fixedly connected inside one of the mounting slots 3. The output end of the control motor 501 is fixedly connected to a drive sprocket 502 via a coupling. Drive sprockets 503 are arranged on both sides of the drive sprocket 502, and the drive sprocket 502 is connected to the two drive sprockets 503 via a chain. A set of symmetrical tensioning wheels 504 is arranged on the opposite sides of both the drive sprocket 502 and the drive chain. The tensioning wheels 504 are movably connected to the inner wall of the connecting slot 2 via a rotating shaft. Close to the outside of the chain, the control mechanism 5 also includes two connecting rods 505. The two connecting rods 505 are symmetrically arranged and movably connected to the top of the connecting groove 2 through a rotating shaft. Both ends of the two connecting rods 505 are fixedly connected to a winding roller 506, and the end of the winding roller 506 away from the connecting rod 505 is fixedly connected to the shaft of the transmission sprocket 503. A steel cable 507 is wound around the outside of the winding roller 506. The other end of the steel cable 507 slides through the hub of the pulley 606 and is fixedly connected to a collar 508. The collar 508 is fixedly connected to the outside of the transmission rod 604.

[0027] By controlling the motor 501 to drive the drive sprocket 502 at its output end to rotate, the chain drives the transmission sprockets 503 on both sides to rotate synchronously, thereby driving the coaxially fixed winding rollers 506 to perform the winding operation. During this process, the two winding rollers 506 on the same side are linked by the connecting rod 505 to ensure that they can rotate at the same speed and in the same direction. This, in turn, pulls the transmission rod 604 through the steel cable 507. The tension wheel 504 is always close to the outside of the chain, effectively eliminating the slack and vibration of the chain during transmission, ensuring the stability and accuracy of power transmission, and preventing slippage. This ensures the smooth operation of the lifting action. At the same time, through the coordinated cooperation of the winding rollers 506 and the connecting rod 505, precise control of the winding length and tension of the steel cable 507 is achieved, allowing the support frames 602 on both sides to unfold synchronously. This avoids the tilting of the vehicle body 1 due to uneven force, greatly improving the automation level and operational safety of the device.

[0028] like Figure 2 , Figure 3 , Figure 4 and Figure 8 As shown, the steering mechanism 4 includes a stabilizing disc 401. The top of the stabilizing disc 401 is movably connected to the center of the connecting groove 2 via a rotating shaft. A connecting hole 7 is provided at the bottom of the stabilizing disc 401. A cylinder 402 is fixedly connected inside the connecting hole 7, and a stabilizing seat 403 is fixedly connected to the output end of the cylinder 402. A transmission gear 404 is arranged in a ring array on the outer side of the stabilizing disc 401. The steering mechanism 4 also includes a drive motor 405. The drive motor 405 is fixedly connected to the inside of another mounting groove 3. A drive bevel gear 406 is fixedly connected to the output end of the drive motor 405 via a coupling, and the drive bevel gear 406 meshes with the stabilizing disc 401 through the transmission gear 404.

[0029] The vehicle body 1 can be stably turned in place by the cooperation of cylinder 402 and drive motor 405. After the vehicle body 1 is lifted off the ground by the lifting auxiliary guide mechanism 6, the output end of cylinder 402 extends downward, pushing the stabilizer 403 to support it firmly on the ground to fix the vertical position of the vehicle body 1. Then, drive motor 405 is started, and drive motor 405 drives drive bevel gear 406 to rotate. Through the meshing transmission of transmission teeth 404 on the outer ring array of stabilizer disc 401, drive stabilizer disc 401 and connected vehicle body 1 to rotate around the central axis. Cylinder 402 and stabilizer 403 form a reliable ground support point, effectively locking the vertical displacement during the turning process and preventing the vehicle body 1 from shaking or overturning during rotation. The meshing transmission of drive bevel gear 406 and transmission teeth 404 provides precise and strong rotational torque, enabling the huge grouting trolley to easily achieve precise turning operations in place in narrow tunnel spaces, greatly improving the flexibility and safety of operation in confined spaces.

[0030] like Figure 2 and Figure 9 As shown, a sliding ring 8 is movably connected to the bottom outer side of the stabilizer 403 via a bearing. A set of symmetrical telescopic rods 9 are fixedly connected to the outer side of the sliding ring 8, and the top of the telescopic rods 9 is fixedly connected to the top of the connecting groove 2. Two control ropes 10 are fixedly connected to the outer side of the sliding ring 8. Two sets of symmetrical sliding grooves 11 are fixedly connected to the top of the connecting groove 2. A retaining ring 12 is slidably connected, and the retaining ring is semi-circular. A limiting tooth is opened inside the retaining ring 12. A limiting gear 13 is fixedly connected to the middle position of the connecting rod 505, and the retaining ring 12 is adapted to the limiting tooth ring. A track wheel 14 is rotatably connected to the end of the connecting groove 2 away from the retaining ring 12. The end of the control rope 10 away from the sliding ring 8 slides through the track wheel 14 and is fixedly connected to the top of the retaining ring 12. A return spring 15 is sleeved on the outer side of the control rope 10, and the return spring 15 is located inside the sliding groove 11.

[0031] The downward movement of the stabilizer 403 causes the sliding ring 8 to move downward synchronously, thereby stretching the telescopic rod 9 and using the control rope 10 to pull the retaining ring 12 to slide within the groove 11 against the elastic force of the return spring 15 until the limiting teeth inside the retaining ring 12 are tightly engaged with the limiting gear 13 on the connecting rod 505. The telescopic rod 9 ensures the following and stability of the sliding ring 8 during the turning process of the vehicle body 1. Secondly, the locking effect of the retaining ring 12 and the limiting gear 13 effectively fixes the position of the connecting rod 505, preventing the steel cable 507 from weakening the binding force on the support frame 602 due to the shaking of the connecting rod 505 when the vehicle body 1 rotates in place. This ensures the absolute stability of the support structure of the vehicle body 1 during the turning process and greatly improves the safety of high-altitude operations.

[0032] Working principle: When the vehicle body 1 completes the grouting operation in the tunnel and needs to turn around and drive out of the tunnel, the control motor 501 is started first. The control motor 501 drives the drive sprocket 502 at its output end to rotate. The drive sprocket 502 drives the transmission sprockets 503 on both sides to rotate synchronously through the chain. During this process, the two sets of tensioning wheels 504, which are symmetrically arranged at the top and bottom, are always close to the outside of the chain to ensure that the chain transmission is stable and does not slip. As the drive sprocket 503 rotates, the winding roller 506 fixedly connected to its shaft rotates accordingly. The two winding rollers 506 on the same side are linked by the connecting rod 505 to ensure that they rotate at the same speed and in the same direction, thus beginning to wind the steel cable 507. During the winding and tightening process, the steel cable 507 pulls the drive rod 604 to rotate outward through the collar 508. The drive rod 604 drives the top of the support frame 602 fixedly connected to it to follow its trajectory. The support frame 602 is L-shaped, and its other end rotates inside the connecting groove 2 through the connecting rod 601, causing the entire support frame 602 to rotate around the hinge point. In the initial stage of the rotation and unfolding of the support frame 602, the universal wheels 605 at its end first contact the ground. As the support frame 602 continues to rotate, its top gradually lifts the vehicle body 1 upwards, eventually causing the wheels of the vehicle body 1 to completely leave the ground. At this time, the bottom of the support frame 602 remains parallel to the ground, and all the universal wheels 605 are in contact with the ground, providing stable support and a stable foundation for the movement of the vehicle body 1. After the lifting is completed, cylinder 402 is activated. The output end of cylinder 402 extends downward, pushing the stabilizer 403 to firmly support the ground. During the downward movement of the stabilizer 403, the sliding ring 8 is pulled, causing the telescopic rod 9 and the pull rope to move along the same trajectory. The telescopic rod 9 extends downward, ensuring that when the vehicle body 1 turns around in place later, the sliding ring 8 rotates along the trajectory of the vehicle body 1. Next, the top of the control rope 10 pulls the retaining ring 12 to slide inside the slide groove 11. The return spring 15 is compressed and deformed until the retaining ring 12 meshes with the limiting gear 13 through the limiting teeth, ensuring that the connecting rod 505 swings to the steel cable. 507 The restraint force weakens, and then the drive motor 405 is turned on. The drive motor 405 drives the drive bevel gear 406 to rotate. The drive bevel gear 406 meshes with the transmission teeth 404 of the outer ring array of the stabilizer disc 401, thereby driving the stabilizer disc 401 to rotate around its top pivot at the center of the connecting groove 2. Since the vehicle body 1 is movably connected to the stabilizer disc 401 through the connecting groove 2 and has been lifted at this time, the vehicle body 1 follows the drive of the drive motor 405 to rotate in place, realizing a precise turning and U-turn operation. After the U-turn is completed, the reverse operation is performed to retract all the deployed parts and start the vehicle to drive out of the tunnel.

[0033] It should be noted that in this document, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. The terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, unless otherwise explicitly specified and limited, the terms "fixed," "installed," "connected," and "linked" should be interpreted broadly. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "linked" can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] 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 tunnel construction grouting trolley, comprising a vehicle body (1), characterized in that: The bottom of the vehicle body (1) is provided with a connecting groove (2), and the bottom of the vehicle body (1) is provided with a set of front and rear symmetrical mounting grooves (3), and the mounting grooves (3) are located on both sides of the connecting groove (2). The center of the connecting groove (2) is movably connected to a steering mechanism (4) through a bearing. One of the mounting grooves (3) is fixedly connected to a control mechanism (5). The output ends of the control mechanism (5) are fixedly connected to a lifting auxiliary guide mechanism (6), and the two sides of the lifting auxiliary guide mechanism (6) are movably connected to the two sides of the connecting groove (2) through a rotating shaft.

2. The tunnel construction grouting trolley according to claim 1, characterized in that: The lifting auxiliary guide mechanism (6) includes two connecting rods (601). The two connecting rods (601) are symmetrically arranged and their two ends are movably connected to the inside of the connecting groove (2) through a rotating shaft. Two symmetrical support frames (602) are fixedly connected to the outer sides of the two connecting rods (601). The support frames (602) are L-shaped. A stabilizing rod (603) and a transmission rod (604) are fixedly connected to the end of the support frame (602) away from the connecting rod (601). Both ends of the stabilizing rod (603) and the transmission rod (604) pass through the support frame (602). The stabilizing rod (603) is located directly below the transmission rod (604).

3. A tunnel construction grouting trolley according to claim 2, characterized in that: The stabilizer bar (603) and the transmission bar (604) are movably connected at both ends by a rotating shaft to casters (605), and the outside of the stabilizer bar (603) is movably connected to two symmetrical pulleys (606) by a bearing.

4. A tunnel construction grouting trolley according to claim 1, characterized in that: The control mechanism (5) includes a control motor (501), which is fixedly connected inside one of the mounting slots (3). The output end of the control motor (501) is fixedly connected to a drive sprocket (502) via a coupling. The drive sprocket (502) is provided with transmission sprockets (503) on both sides, and the drive sprocket (502) is connected to the two transmission sprockets (503) via a chain.

5. A tunnel construction grouting trolley according to claim 4, characterized in that: The drive sprocket (502) and the transmission chain are each provided with a set of symmetrical tensioning wheels (504) on opposite sides. The tensioning wheels (504) are movably connected to the inner wall of the connecting groove (2) via a rotating shaft. The opposite sides of the tensioning wheels (504) are close to the outer side of the chain.

6. A tunnel construction grouting trolley according to claim 5, characterized in that: The control mechanism (5) also includes two connecting rods (505). The two connecting rods (505) are symmetrically arranged and movably connected to the top of the connecting groove (2) through a rotating shaft. Both ends of the two connecting rods (505) are fixedly connected to a winding roller (506), and the end of the winding roller (506) away from the connecting rod (505) is fixedly connected to the axis of the transmission sprocket (503).

7. A tunnel construction grouting trolley according to claim 6, characterized in that: The outer side of the winding roller (506) is wound with a steel cable (507). The other end of the steel cable (507) slides through the hub of the pulley (606) and is fixedly connected to a collar (508). The collar (508) is fixedly connected to the outer side of the transmission rod (604). The steering mechanism (4) includes a stabilizing disc (401). The top of the stabilizing disc (401) is movably connected to the center of the connecting groove (2) through a rotating shaft. A connecting hole (7) is opened at the bottom of the stabilizing disc (401). A cylinder (402) is fixedly connected inside the connecting hole (7). A stabilizing seat (403) is fixedly connected to the output end of the cylinder (402). Transmission teeth (404) are arranged in a ring array on the outer side of the stabilizing disc (401).

8. A tunnel construction grouting trolley according to claim 1, characterized in that: The steering mechanism (4) also includes a drive motor (405), which is fixedly connected to the inside of another mounting slot (3). The output end of the drive motor (405) is fixedly connected to a drive bevel gear (406) through a coupling, and the drive bevel gear (406) meshes with the stabilizer plate (401) through a transmission gear (404).

9. A tunnel construction grouting trolley according to claim 8, characterized in that: The bottom outer side of the stabilizer (403) is movably connected to a sliding ring (8) via a bearing. A set of symmetrical telescopic rods (9) are fixedly connected to the outer side of the sliding ring (8), and the top of the telescopic rods (9) is fixedly connected to the top of the connecting groove (2). Two control ropes (10) are fixedly connected to the outer side of the sliding ring (8). Two sets of symmetrical sliding grooves (11) are fixedly connected to the top of the connecting groove (2). The sliding connection is connected to a retaining ring (12), and the retaining ring is semi-circular. The retaining ring (12) has a limiting tooth inside. A limiting gear (13) is fixedly connected to the middle position of the connecting rod (505), and the retaining ring (12) is compatible with the limiting tooth ring.

10. A tunnel construction grouting trolley according to claim 1, characterized in that: The end of the connecting groove (2) away from the retaining ring (12) is rotatably connected to the track wheel (14). The end of the control rope (10) away from the sliding ring (8) slides past the track wheel (14) and is fixedly connected to the top of the retaining ring (12). A reset spring (15) is sleeved on the outside of the control rope (10), and the reset spring (15) is located inside the sliding groove (11).

Images