A tunnel drilling construction transportation steering device

Abstract

A steering device for tunnel drilling and transportation is disclosed, relating to the field of tunnel drilling construction. In existing tunnel drilling operations, the internal space is relatively narrow, making it difficult to provide a large enough area for vehicles to turn around, thus preventing subsequent vehicles from entering and slowing down the overall construction progress. This invention includes a tractor platform, a steering platform, a fixed platform, and a steering retraction mechanism. The upper part of the tractor platform is rotatably connected to the steering platform, and the upper part of the tractor platform is fixedly connected to the fixed platform. The steering platform and the fixed platform are connected by the steering retraction mechanism, which drives the steering platform to move along an arc-shaped trajectory above the tractor platform. A hydraulic cylinder is installed in the groove of the fixed platform, and one end of the hydraulic cylinder is fixedly connected to the steering retraction mechanism. The hydraulic cylinder push rod drives the steering retraction mechanism to move. This invention is applied to the field of steering for construction and transportation vehicles in tunnels.

Description

Technical Field

[0001] This invention relates to the field of tunnel drilling construction, and more specifically to a tunnel drilling construction transportation steering device. Background Technology

[0002] During tunnel drilling, transport vehicles enter the tunnel primarily to remove excavated soil or transport building materials. The tunnel excavation process generates a large amount of excavated soil, which needs to be removed by transport vehicles to maintain unobstructed working space and facilitate subsequent construction. If the excavated soil cannot be removed in time, it will accumulate inside the tunnel, not only occupying space but also affecting the normal operation of construction equipment. Meanwhile, large quantities of materials such as concrete, steel, and anchor bolts need to be transported into the tunnel to provide the necessary material basis for tunnel excavation, initial support, and secondary lining. For example, during lining construction, concrete transport vehicles must deliver concrete to the working face for pouring the lining structure, ensuring the stability and safety of the tunnel.

[0003] Currently, during tunnel drilling operations, the internal space of a tunnel is relatively narrow, unlike an open road where there is enough room for vehicles to turn around. The cross-sectional area of ​​a tunnel is designed according to construction needs and safety regulations, primarily to ensure construction access and necessary space for transporting equipment and materials; it is difficult to have a sufficiently large area for vehicles to turn around.

[0004] The inconvenience of vehicles turning around increases the turnaround time for vehicles to travel back and forth, making it difficult to quickly transport materials into or out of the tunnel. For example, during tunnel boring machine (TBM) construction, if dump trucks cannot turn around and leave in time, subsequent vehicles cannot enter, causing the TBM to pause its excavation due to the accumulation of excavated soil, thus slowing down the overall construction progress.

[0005] Meanwhile, due to the difficulty of turning around, vehicles may need to repeatedly adjust their position or reverse inside the tunnel, a process that consumes more fuel or electricity, increasing construction costs. Moreover, when vehicles cannot turn around smoothly, it can easily cause congestion inside the tunnel, affecting the normal passage of other vehicles. Especially when multiple vehicles are working simultaneously, if a vehicle needs to turn around but is stopped due to space constraints, the entire transportation corridor can be paralyzed. Summary of the Invention

[0006] In order to solve the problem that in existing tunnel drilling operations, the internal space of the tunnel is relatively narrow, making it difficult to have a large enough area for vehicles to turn around, which prevents subsequent vehicles from entering and slows down the overall construction progress, the present invention provides a tunnel drilling construction transportation steering device.

[0007] The technical solution of this invention is:

[0008] A tunnel drilling construction transportation steering device, comprising a tractor platform, a steering platform, a fixed platform, and a steering retraction mechanism;

[0009] The upper part of the tractor platform is rotatably connected to the steering platform, and the upper part of the tractor platform is fixedly connected to the fixed platform. The steering platform and the fixed platform are connected by a steering retraction mechanism, and the steering retraction mechanism drives the steering platform to move along an arc trajectory above the tractor platform. The fixed platform is located above the tractor platform near the left edge of the tractor platform, and the tractor platform and the fixed platform are integrally fixedly connected.

[0010] An upslope plate is fixedly connected to one side of the head of the steering platform and the fixed platform, and the length of the upslope plate is the same as the width of the steering platform and the fixed platform. The tail of the steering platform and the fixed platform is provided with a groove for installing the steering retraction mechanism. A hydraulic cylinder is installed in the groove of the fixed platform. The hydraulic cylinder has an angle with the long side of the fixed platform, and the hydraulic cylinder is fixedly connected to one end of the steering retraction mechanism. The steering retraction mechanism is driven to move by the hydraulic cylinder push rod.

[0011] When the cylinder push rod of the hydraulic cylinder extends to its maximum distance, the two sides of the steering retraction mechanism are symmetrical, and the steering platform and the fixed platform are parallel. At this time, the front of the transport vehicle on the steering platform is set in the positive direction of the tunnel drilling and construction transport steering device.

[0012] When the cylinder push rod of the hydraulic cylinder extends to its minimum distance, the steering retraction mechanism drives the steering platform to rotate on the tractor platform, so that the steering platform and the fixed platform are on the same vertical line, and the tail of the steering platform and the tail of the fixed platform are aligned with each other with a gap at the alignment point. At this time, the front of the transport vehicle on the steering platform is positioned in the opposite direction to the drilling and construction transport steering device in the tunnel, so that the transport vehicle on the steering platform is transported to the top of the fixed platform and drives away from the fixed platform.

[0013] Furthermore, the steering retraction mechanism includes a left crank, a right crank, a shaft hinge joint, a short side hinge joint, a long side hinge joint, a pin, and a slider;

[0014] The number of left and right cranks is at least two, and the left and right cranks are arranged in an alternating, overlapping manner. A shaft hinge joint is installed near the middle position of each left and right crank. The short sides of each left and right crank are fixedly connected to short-side hinge joints, and the long sides of each left and right crank are fixedly connected to long-side hinge joints. After the shaft holes of the shaft hinge joints of the left and right cranks are aligned, a pin is inserted into the shaft hinge joint. The left and right cranks are rotatably connected through the pin, thereby driving the steering platform to rotate.

[0015] Furthermore, the short-side hinge joint of the left crank rod is disposed in the groove of the steering platform;

[0016] The long side hinge of the left curved rod is set in the groove of the fixed base, and the long side hinge of the left curved rod is fixedly connected to the slider. The slider is set in the slide groove, so that the slider moves along the slide groove.

[0017] Furthermore, the short-side hinge joint of the right-hand crank is disposed in the groove of the fixed base;

[0018] The long side hinge of the right crank is set in the groove of the steering platform, and the long side hinge of the right crank is fixedly connected to the slider. The slider is set in the slide groove, so that the slider moves along the slide groove.

[0019] Furthermore, the slider end inside the fixed base is equipped with a connector, which is connected to the cylinder push rod of the hydraulic cylinder through the connector, and the slider inside the fixed base is pushed by the cylinder push rod of the hydraulic cylinder.

[0020] Furthermore, a set of rolling mechanisms is also included below the steering platform, and the set of rolling mechanisms is arranged in a parallel structure below the steering platform.

[0021] Furthermore, the rolling mechanism includes balls, a pressure plate, a quick-release structure, and a locking plate;

[0022] The ball bearings are disposed in the arc-shaped groove of the steering platform and the conical groove of the pressure plate, and the locking plate passes through the insertion hole of the pressure plate;

[0023] The locking plate has a through-hole in the lateral direction. The quick-release structure is used in conjunction with the locking plate to fix the pressure plate.

[0024] Furthermore, the quick-release structure includes a bracket, a stop block, a front latch plate, a rear latch plate, an L-shaped slide groove, and a pivot for connecting the front latch plate and the rear latch plate;

[0025] The stop block is perpendicularly connected to the horizontal plate of the insert frame, the front and rear clamping plates are rotatably connected to the insert frame, the L-shaped slide grooves are symmetrically opened on the longitudinal plates on both sides of the insert frame, and the rotating shaft of the rear clamping plate is inserted into the L-shaped slide groove.

[0026] The insert has a U-shaped cross-section and is inserted into the lock hole of the lock plate.

[0027] Furthermore, a ramp is fixedly connected to the end of the tractor platform. The ramp is located below the upper slope of the fixed platform, and the slope of the ramp is the same as that of the upper slope.

[0028] Furthermore, a set of wheels is connected to the bottom of the tractor platform, and hydraulic support legs are installed between the set of wheels.

[0029] Compared with the prior art, the present invention has the following advantages:

[0030] This invention introduces a turning device for tunnel drilling and transportation, which improves transportation efficiency. During tunnel construction, transport vehicles can quickly turn around, reducing transportation time and accelerating the turnover of materials and equipment.

[0031] The entire turning operation of the transport vehicle in this invention is completed by the tunnel drilling and construction transport steering device, enabling the transport vehicle to quickly complete the turning operation inside the tunnel. This avoids the large blind spots that exist when the transport vehicle is reversing in the relatively narrow space of a tunnel, which can easily lead to collisions and other accidents. This device allows the vehicle to change direction while traveling forward, reducing the risk of accidents.

[0032] This invention incorporates a rolling mechanism, which reduces the frictional force on the steering platform during movement.

[0033] Meanwhile, the pressure plate of the rolling mechanism is an independent structure. When a ball in the middle position is severely worn, the pressure plate of the rolling mechanism can be quickly disassembled through the quick-release structure, which facilitates the replacement of the ball.

[0034] When the pressure plate is locked onto the locking plate, the quick-release structure of this invention first rotates the front and rear clamping plates into the insert, so that the front and rear clamping plates and the insert are in a linear structure. The quick-release structure is then passed through the locking hole of the locking plate. When the front clamping plate of the quick-release structure passes through the locking hole of the locking plate, one side of the front clamping plate is limited by a stop block, and the locking plate limits the other side of the front clamping plate. Then, the rear clamping plate slides along the L-shaped slide groove, so that the rear clamping plate slides into the longitudinal groove of the L-shaped slide groove. At this time, the rear clamping plate and the insert are in a vertical structure. The locking plate is set between the front and rear clamping plates, and the locking plate and the pressure plate can be quickly installed and removed without the aid of other tools.

[0035] In reuse of this invention, the first transport vehicle enters the steering platform. The hydraulic cylinder, through its push rod, drives the slider within the fixed platform to slide in a groove. The left crank rod drives the right crank rod of the steering retraction mechanism, causing the steering platform to rotate counter-clockwise on the tractor platform. When the hydraulic cylinder push rod extends to its minimum distance, the steering platform rotates to its maximum distance, forming a longitudinal linear structure with the fixed platform. At this point, the lead transport vehicle rotates 180 degrees through the steering platform, and the transport vehicle on this steering platform travels onto the fixed platform. After the transport vehicle leaves the steering platform, the hydraulic cylinder retracts its push rod, and the steering retraction mechanism... The structure rotates counterclockwise to rotate the steering platform, resetting it so that it is arranged parallel to the fixed platform. The second transport vehicle drives onto the steering platform, and after the first transport vehicle is loaded, it drives away from the fixed platform and exits the tunnel from one side. On the other side of the tunnel, transport vehicles waiting to be loaded can queue up and enter the steering platform to turn around. Through the above structure, transport vehicles on both sides of the tunnel can turn around in an orderly manner, leaving a waiting area for transport vehicles on one side of the tunnel. This ensures that multiple transport vehicles can continuously turn around and load within the tunnel, improving the transport efficiency. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the present invention;

[0037] Figure 2 yes Figure 1 A schematic diagram of the structure when the central steering platform rotates;

[0038] Figure 3 yes Figure 1 A schematic diagram of the structure when the steering platform and the fixed platform are engaged;

[0039] Figure 4 yes Figure 1 Enlarged view of part A in the middle;

[0040] Figure 5 This is a schematic diagram of the left crank of the steering retraction mechanism;

[0041] Figure 6 yes Figure 1 The main view in the middle;

[0042] Figure 7 yes Figure 3 The main view in the middle;

[0043] Figure 8 This is a schematic diagram of the structure of a transport vehicle when it turns using this invention;

[0044] Figure 9 This is a schematic diagram of the rolling mechanism;

[0045] Figure 10 yes Figure 9 Enlarged view of part B in the middle;

[0046] Figure 11 yes Figure 8 A structural diagram showing the structure without the pressure plate and quick-release mechanism installed.

[0047] Figure 12 This is a cross-sectional view of the pressure plate;

[0048] Figure 13 This is a structural diagram of the quick-release mechanism;

[0049] Figure 14 yes Figure 13 A bottom view;

[0050] Figure 15 yes Figure 14 Sectional view of CC;

[0051] Figure 16 This is a diagram showing the quick-release mechanism being inserted into the lock plate and removed from the lock plate;

[0052] In the diagram: 1. Tractor platform, 2. Steering platform, 3. Fixed platform, 4. Steering retraction mechanism, 5. Uphill ramp, 6. Tank, 7. Hydraulic cylinder, 8. Transport vehicle, 9. Rolling mechanism, 10. Buffer platform, 11. Wheel, 12. Hydraulic support leg, 13. Inspection plate.

[0053] 41. Left crank rod, 42. Right crank rod, 43. Shaft hinge joint, 44. Short side hinge joint, 45. Long side hinge joint, 46. Pin, 47. Slider, 48. Slide groove;

[0054] 91. Ball bearings; 92. Pressure plate; 93. Quick-release mechanism; 94. Locking plate; 95. Conical groove; 96. Graphene sleeve.

[0055] 94-1, Lock hole; 93-1, Insert bracket; 93-2, Stop block; 93-3, Front locking plate; 93-4, Rear locking plate; 93-5, L-shaped slide groove. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0057] Specific implementation method one: Combining Figure 1 — Figure 3This embodiment describes a tunnel drilling construction transportation steering device, which includes a tractor platform 1, a steering platform 2, a fixed platform 3, and a steering retraction mechanism 4.

[0058] The upper part of the tractor platform 1 is rotatably connected to the steering platform 2, and the upper part of the tractor platform 1 is fixedly connected to the fixed platform 3. The steering platform 2 and the fixed platform 3 are connected by a steering retraction mechanism 4, and the steering retraction mechanism 4 drives the steering platform 2 to move along an arc trajectory above the tractor platform 1. The fixed platform 3 is located above the tractor platform 1 near the left edge of the tractor platform 1, and the tractor platform 1 and the fixed platform 3 are integrally fixedly connected.

[0059] An upslope plate 5 is fixedly connected to one side of the head of the steering platform 2 and the fixed platform 3, and the length of the upslope plate 5 is the same as the width of the steering platform 2 and the fixed platform 3. The tail of the steering platform 2 and the fixed platform 3 is provided with a groove 6 for installing the steering retraction mechanism 4. A hydraulic cylinder 7 is installed in the groove 6 of the fixed platform 3. The hydraulic cylinder 7 has an angle with the long side of the fixed platform 3, and the hydraulic cylinder 7 is fixedly connected to one end of the steering retraction mechanism 4. The steering retraction mechanism 4 is driven to move by the hydraulic cylinder push rod of the hydraulic cylinder 7.

[0060] When the cylinder push rod of the hydraulic cylinder 7 extends to its maximum distance, the two sides of the steering retraction mechanism 4 are symmetrical.

[0061] The steering platform 2 and the fixed platform 3 are arranged in parallel. At this time, the front of the transport vehicle 8 on the steering platform 2 is set in the positive direction of the drilling and construction transport steering device in the tunnel.

[0062] When the cylinder push rod of the hydraulic cylinder 7 extends to its minimum distance, the steering retraction mechanism 4 drives the steering platform 2 to rotate on the tractor platform 1, so that the steering platform 2 and the fixed platform 3 are on the same vertical line, and the tail of the steering platform 2 and the tail of the fixed platform 3 are aligned, with a gap left at the alignment point. At this time, the front of the transport vehicle 8 on the steering platform 2 is set in the opposite direction of the drilling and construction transport steering device in the tunnel, so that the transport vehicle 8 on the steering platform 2 is transported to the top of the fixed platform 3, and the transport vehicle 8 drives away from the fixed platform 3.

[0063] Specific Implementation Method Two: Combining Figure 4 and Figure 5 This embodiment describes a tunnel drilling construction transportation steering device. The steering retraction mechanism 4 includes a left crank 41, a right crank 42, a shaft hinge joint 43, a short side hinge joint 44, a long side hinge joint 45, a pin 46, and a slider 47.

[0064] The number of left crank rods 41 and right crank rods 42 is at least two, and the left crank rods 41 and right crank rods 42 are arranged in an alternating, overlapping manner. A shaft hinge joint 43 is installed near the middle position of each of the left crank rods 41 and right crank rods 42. The short sides of the left crank rods 41 and right crank rods 42 are respectively fixedly connected to short side hinge joints 44, and the long sides of the left crank rods 41 and right crank rods 42 are respectively fixedly connected to long side hinge joints 45. After the shaft holes of the shaft hinge joints 43 of the left crank rods 41 and right crank rods 42 are aligned, a pin 46 is inserted into the shaft hinge joint 43. The left crank rods 41 and right crank rods 42 are rotatably connected through the pin 46, thereby driving the steering platform 2 to rotate.

[0065] The left curved rod 41 and the right curved rod 42 have the same structure. During installation, the two left curved rods 41 and the two right curved rods 42 are arranged in an alternating manner so that the centers of the insertion holes of the shaft hinge joints 43 on the left curved rods 41 and the right curved rods 42 are on the same straight line. At the same time, a pin 46 is inserted into the shaft hinge joint 43 to rotatably connect the two left curved rods 41 and the two right curved rods 42 through the pin 46.

[0066] The left crank 41 drives the right crank 42 to rotate. Since the right crank 42 is rotatably connected to the steering platform 2, when the left crank 41 drives the right crank 42, the right crank 42 drives the steering platform 2 to rotate counterclockwise, and the steering retraction mechanism 4 adjusts the angle of the steering platform 2.

[0067] Specific implementation method three: Combining Figure 4 — Figure 7 This embodiment describes a tunnel drilling construction transportation steering device in which the short side hinge joint 44 of the left crank rod 41 is installed in the groove 6 of the steering platform 2.

[0068] The long side hinge joint 45 of the left curved rod 41 is set in the groove 6 of the fixed base 3, and the long side hinge joint 45 of the left curved rod 41 is fixedly connected to the slider 47. The slider 47 is set in the slide groove 48, so that the slider 47 moves along the slide groove 48.

[0069] The groove 6 in the steering platform 2 and the fixed platform 3 is a rectangular groove structure. The groove 6 in the steering platform 2 and the fixed platform 3 facilitates the installation of the steering retraction mechanism 4. The top and bottom of the groove 6 are respectively provided with sliding grooves 48, and each sliding groove 48 is slidably installed with a slider 47. The slider 47 slides along the sliding groove 48. The slider 47 in the upper part of the groove 48 in the fixed platform 3 is connected to the hydraulic push rod of the oil cylinder 7. Therefore, when the hydraulic push rod of the oil cylinder 7 pushes the slider 47 in the sliding groove 48, the slider 47 in the sliding groove 48 drives the movement between the left crank rod 41 and the right crank rod 42. Depending on the needs, the upper slide groove 48 and the lower slide groove 48 in the groove 6 of the fixed base 3 can be fixedly connected by a push plate. The push plate and the two slides 47 form a U-shaped structure. The hydraulic push rod of the cylinder 7 can be fixed in the middle position of the push plate through the joint, so that the cylinder 7 can drive the slides 47 of the upper slide groove 48 and the lower slide groove 48 to slide at the same time.

[0070] Specific implementation method four: Combination Figure 4 — Figure 8 This embodiment describes a tunnel drilling construction transportation steering device in which the short side hinge joint 44 of the right curved rod 42 is set in the groove 6 of the fixed base 3.

[0071] The long side hinge joint 45 of the right crank rod 42 is set in the groove 6 of the steering platform 2, and the long side hinge joint 45 of the right crank rod 42 is fixedly connected to the slider 47. The slider 47 is set in the slide groove 48, so that the slider 47 moves along the slide groove 48.

[0072] The short-side hinge joints 44 on the left crank 41 and the right crank 42 are integrally fixedly connected to the left crank 41 and the right crank 42 respectively, and a rotating shaft is inserted into the short-side hinge joints 44 of the left crank 41 and the right crank 42. The rotating shaft is set in the groove 6, and the top and bottom of the rotating shaft are fixed in the groove of the steering platform 2 and the fixed platform 3, so that the short-side hinge joints 44 of the left crank 41 and the right crank 42 can rotate along the rotating shaft.

[0073] A rotating shaft is inserted into the long-side hinge joint 45 on the left crank 41 and the right crank 42. The top and bottom of the rotating shaft are vertically connected to the slider 47. When the slider 47 slides, the rotating shaft on the slider 47 drives the long-side hinge joint 45 on the left crank 41 and the right crank 42 to move, thereby enabling the left crank 41 and the right crank 42 to run.

[0074] Specific Implementation Method Five: Combining Figure 4 — Figure 8This embodiment describes a tunnel drilling and transportation steering device. The slider 47 inside the fixed base 3 has a connector installed at its end, and is connected to the cylinder push rod of the cylinder 7 through the connector. The slider 47 inside the fixed base 3 is pushed by the cylinder push rod of the cylinder 7.

[0075] When the cylinder push rod of the hydraulic cylinder 7 extends to its maximum distance, the two sides of the steering retraction mechanism 4 are symmetrical.

[0076] The steering platform 2 and the fixed platform 3 are arranged in parallel. At this time, the front of the transport vehicle 8 on the steering platform 2 is set in the positive direction of the drilling and construction transport steering device in the tunnel.

[0077] When the cylinder push rod of the hydraulic cylinder 7 extends to its minimum distance, the steering retraction mechanism 4 drives the steering platform 2 to rotate on the tractor platform 1, so that the steering platform 2 and the fixed platform 3 are on the same vertical line, and the tail of the steering platform 2 and the tail of the fixed platform 3 are aligned, with a gap left at the alignment point. At this time, the front of the transport vehicle 8 on the steering platform 2 is set in the opposite direction of the drilling and construction transport steering device in the tunnel, so that the transport vehicle 8 on the steering platform 2 is transported to the top of the fixed platform 3, and the transport vehicle 8 drives away from the fixed platform 3.

[0078] Specific Implementation Method Six: Combination Figure 9 — Figure 12 This embodiment describes a tunnel drilling construction transportation steering device. Below the steering platform 2, there is also a set of rolling mechanisms 9, which are arranged in a parallel structure below the steering platform 2.

[0079] The bottom of the steering platform 2 is equipped with a rolling mechanism 9. When the steering platform 2 rotates, the steering platform 2 drives the rolling mechanism 9 to move synchronously. When the steering platform 2 rotates on the tractor platform 1, a set of balls 91 on the rolling mechanism 9 roll on the tractor platform 1, thereby reducing the friction between the steering platform 2 and the tractor platform 1, so that the steering platform 2 can work smoothly.

[0080] Specific implementation method seven: Combination Figure 9 — Figure 12 This embodiment describes a tunnel drilling construction transportation steering device, wherein the rolling mechanism 9 includes a ball bearing 91, a pressure plate 92, a quick-release structure 93, and a locking plate 94.

[0081] The ball bearing 91 is disposed in the arc-shaped groove of the steering platform 2 and the conical groove 95 of the pressure plate 92, and the locking plate 94 passes through the insertion hole of the pressure plate 92.

[0082] The locking plate 94 has a through-hole 94-1 in the lateral direction. The quick-release structure 93 is used in conjunction with the locking plate 94 to fix the pressure plate 92.

[0083] The pressure plate 92 is a rectangular structure with a conical groove 95 in the middle, and each ball 91 corresponds to one pressure plate 92. Each pressure plate 92 is an independent structure, and two quick-release structures 93 are installed on each pressure plate 92.

[0084] The locking plate 94 is a rectangular insert structure, and the locking plate 94 passes through an insertion hole on the pressure plate 92. The shape of the insertion hole is the same as the cross-sectional shape of the locking plate 94, thereby facilitating the insertion of the locking plate 94 through the pressure plate 92 and through each ball 91.

[0085] Specific implementation method eight: Combination Figure 13 — Figure 16 This embodiment describes the tunnel drilling construction transportation steering device. The quick-release structure 93 includes a bracket 93-1, a stop block 93-2, a front clamping plate 93-3, a rear clamping plate 93-4, an L-shaped slide 93-5, and a rotating shaft for connecting the front clamping plate 93-3 and the rear clamping plate 93-4.

[0086] The stop block 93-2 is vertically connected to the horizontal plate surface of the insert 93-1. The front plate 93-3 and the rear plate 93-4 are rotatably connected to the insert 93-1. The L-shaped slide groove 93-5 is symmetrically opened on the two longitudinal plates of the insert 93-1, and the rotating shaft of the rear plate 93-4 is inserted into the L-shaped slide groove 93-5.

[0087] The insert 93-1 has a U-shaped cross-section and is inserted into the lock hole 94-1 of the lock plate 94.

[0088] The quick-release structure 93 has a bracket 93-1 that is rotatably connected to the front plate 93-3 and the rear plate 93-4 respectively. The width of the front plate 93-3 and the rear plate 93-4 is less than the height of the bracket 93-1, so that when the front plate 93-3 and the rear plate 93-4 rotate, they can rotate into the bracket 93-1. The stop block 93-2 mainly limits the front plate 93-3 to prevent the front plate 93-3 from continuing to rotate when it is perpendicular to the bracket 93-1.

[0089] When the quick-release structure 93 locks the pressure plate 92 onto the locking plate 94, it first rotates the front locking plate 93-3 and the rear locking plate 93-4 into the insert 93-1, making the front locking plate 93-3 and the rear locking plate 93-4 linearly aligned with the insert 93-1. The quick-release structure 93 then passes through the locking hole 94-1 of the locking plate 94. When the front locking plate 93-3 passes through the locking hole 94-1, it rotates under its own weight, making it perpendicular to the insert 93-1. One side of the front locking plate 93-3 is limited by the stop block 93-2, and the locking plate 94 limits the other side of the front locking plate 93-3. Then, the rear locking plate 93-4 slides along the L-shaped slide groove 93-5, allowing it to slide into the L-shaped slide groove 93-5. In the longitudinal groove of 5, the rear retaining plate 93-4 and the insert 93-1 are in a vertical structure. At this time, the locking plate 94 is set between the front retaining plate 93-3 and the rear retaining plate 93-4. The locking plate 94 and the pressure plate 92 can be quickly installed and removed without the aid of other tools. When it is necessary to remove the quick-release structure 93 from the lock hole 94-1, slide the rear retaining plate 93-4 along the L-shaped slide groove 93-5 so that the rear retaining plate 93-4 slides into the transverse groove of the L-shaped slide groove 93-5, so that the rear retaining plate 93-4 and the insert 93-1 are in a parallel structure. Then move the quick-release structure 93 horizontally to the side of the front retaining plate 93-3 and slide the quick-release structure 93 out of the lock hole 94-1 of the locking plate 94. The pressure plate 92 is then separated from the locking plate 94, and the worn ball bearing 91 is replaced.

[0090] Specific Implementation Method Nine: Combining Figure 13 — Figure 16 This embodiment describes a tunnel drilling construction transportation steering device in which a buffer platform 10 is fixedly connected to the end of the tractor platform 1. The buffer platform 10 is located below the upper slope plate 5 of the fixed base 3, and the slope of the buffer platform 10 is the same as the slope of the upper slope plate 5.

[0091] By setting an uphill plate 5 at the end of the fixed platform 3 and a ramp 10 at the end of the tractor platform 1, the transport vehicle 8 can drive onto the steering platform 2 along the ramp 10 and the uphill plate 5.

[0092] Specific Implementation Method Ten: Combining Figure 1 — Figure 16 This embodiment describes a tunnel drilling and transportation steering device where a set of wheels 11 are connected to the bottom of the tractor platform 1, and hydraulic support legs 12 are installed between the wheels.

[0093] Working principle:

[0094] In use, the tunnel drilling and transportation steering device is transported into the tunnel. The steering platform 2 and fixed platform 3 of the tunnel drilling and transportation steering device are arranged in parallel. The first transport vehicle 8 enters the steering platform 2 via the ramp 10 and the ramp 5 of the steering platform 2. The hydraulic cylinder 7 is activated, and the hydraulic cylinder 7 drives the slider 47 in the fixed platform 3 to slide in the slide groove 48 through the hydraulic cylinder push rod. When the slider 47 in the fixed platform 3 slides in the slide groove 48, the shaft in the slider 47 will drive the long side hinge joint 45 connected to the slider 47 to move, thereby driving the right crank 42 of the steering retraction mechanism 4 through the left crank 41. When the right crank 42 moves, the slider 47 in the right crank 42 will move along the slide groove 48, causing the steering platform 2 to rotate counterclockwise on the tractor platform 1. When the hydraulic cylinder push rod of the hydraulic cylinder 7 extends to the minimum distance, the steering platform 2 rotates to the maximum distance, and the steering platform 2 and the fixed platform 3 are arranged in a longitudinal direction. In the linear structure, the leading transport vehicle 8 rotates 180 degrees via the steering platform 2, and then travels onto the fixed platform 3. After the transport vehicle 8 leaves the steering platform 2, the hydraulic cylinder 7 drives the hydraulic cylinder push rod to retract, causing the steering retraction mechanism 4 to rotate counterclockwise, resetting the steering platform 2 so that it is arranged parallel to the fixed platform 3. The second transport vehicle then enters the steering platform 2. After the first transport vehicle 8 is loaded, it leaves the fixed platform 3 and exits the tunnel from one side. On the other side of the tunnel, transport vehicles 8 waiting to be loaded can queue up and enter the steering platform 2 to turn around. Through the above structure, transport vehicles 8 on both sides of the tunnel can turn around in an orderly manner, leaving a waiting area for transport vehicles 8 on one side of the tunnel. This ensures that multiple transport vehicles 8 can continuously turn around and load within the tunnel, improving the transport efficiency of the transport vehicles 8.

[0095] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent substitutions, and improvements made to the above embodiments without departing from the scope of the present invention, based on the technical essence of the present invention and within the spirit and principles of the present invention, shall still fall within the protection scope of the present invention.

Claims

1. A tunnel drilling construction transportation steering device, characterized in that, The tunnel drilling and transportation steering device includes a tractor platform (1), a steering platform (2), a fixed platform (3), and a steering retraction mechanism (4); The upper part of the tractor platform (1) is rotatably connected to the steering platform (2), and the upper part of the tractor platform (1) is fixedly connected to the fixed platform (3). The steering platform (2) and the fixed platform (3) are connected by a steering retraction mechanism (4), and the steering retraction mechanism (4) drives the steering platform (2) to move along an arc trajectory above the tractor platform (1). The fixed platform (3) is located above the tractor platform (1) near the left edge of the tractor platform (1), and the tractor platform (1) and the fixed platform (3) are integrally fixedly connected. The tunnel drilling construction transportation steering device also includes an upslope plate (5), a trough (6) and a hydraulic cylinder (7). The upslope plate (5) is fixedly connected to one side of the head of the steering platform (2) and the fixed platform (3), and the length of the upslope plate (5) is the same as the width of the steering platform (2) and the fixed platform (3). The tail of the steering platform (2) and the fixed platform (3) is provided with a trough (6) for installing the steering retraction mechanism (4). The hydraulic cylinder (7) is installed in the trough (6) of the fixed platform (3). The hydraulic cylinder (7) has an angle with the long side of the fixed platform (3), and the hydraulic cylinder (7) is fixedly connected to one end of the steering retraction mechanism (4). The steering retraction mechanism (4) is pushed to move by the hydraulic cylinder push rod of the hydraulic cylinder (7). When the cylinder push rod of the cylinder (7) is pushed to the maximum distance, the steering retraction mechanism (4) has a symmetrical structure on both sides, and the steering platform (2) and the fixed platform (3) have a parallel structure. At this time, the front of the transport vehicle (8) on the steering platform (2) is set in the positive direction of the tunnel drilling construction transport steering device. When the cylinder push rod of the cylinder (7) extends to its minimum distance, the steering retraction mechanism (4) drives the steering platform (2) to rotate on the tractor platform (1), so that the steering platform (2) and the fixed platform (3) are on the same vertical line, and the tail of the steering platform (2) and the tail of the fixed platform (3) are aligned, with a gap at the alignment point. At this time, the front of the transport vehicle (8) on the steering platform (2) is set in the opposite direction of the tunnel drilling construction transport steering device, so that the transport vehicle (8) on the steering platform (2) is transported to the top of the fixed platform (3), and the transport vehicle (8) drives away from the fixed platform (3).

2. The tunnel drilling and transportation steering device according to claim 1, characterized in that, The steering retraction mechanism (4) includes a left crank (41), a right crank (42), a shaft hinge (43), a short side hinge (44), a long side hinge (45), a pin (46), and a slider (47); The number of left crank rods (41) and right crank rods (42) is at least two, and the left crank rods (41) and right crank rods (42) are arranged in an alternating, overlapping manner. The left crank rods (41) and right crank rods (42) are respectively installed with shaft hinge joints (43) near the middle position. The short sides of the left crank rods (41) and right crank rods (42) are respectively fixedly connected with short side hinge joints (44), and the long sides of the left crank rods (41) and right crank rods (42) are respectively fixedly connected with long side hinge joints (45). After the shaft holes of the shaft hinge joints (43) of the left crank rods (41) and right crank rods (42) are aligned, a pin (46) is inserted into the shaft hinge joint (43). The left crank rods (41) and right crank rods (42) are rotatably connected through the pin (46), thereby driving the steering platform (2) to rotate.

3. The tunnel drilling construction transportation steering device according to claim 2, characterized in that, The short side hinge joint (44) of the left crank rod (41) is set in the groove (6) of the steering platform (2); The long side hinge (45) of the left curved rod (41) is set in the groove (6) of the fixed base (3), and the long side hinge (45) of the left curved rod (41) is fixedly connected to the slider (47). The slider (47) is set in the slide groove (48) so that the slider (47) moves along the slide groove (48).

4. The tunnel drilling and transportation steering device according to claim 3, characterized in that, The short side hinge joint (44) of the right curved rod (42) is set in the groove (6) of the fixed base (3); The long side hinge joint (45) of the right crank rod (42) is set in the groove (6) of the steering platform (2), and the long side hinge joint (45) of the right crank rod (42) is fixedly connected to the slider (47). The slider (47) is set in the slide groove (48) so that the slider (47) moves along the slide groove (48).

5. The tunnel drilling and transportation steering device according to claim 4, characterized in that, The slider (47) inside the fixed base (3) is equipped with a connector at its end, and is connected to the cylinder push rod of the cylinder (7) through the connector. The slider (47) inside the fixed base (3) is pushed by the cylinder push rod of the cylinder (7).

6. The tunnel drilling and transportation steering device according to claim 1, characterized in that, Below the steering platform (2) is also a set of rolling mechanisms (9), which are arranged in parallel below the steering platform (2).

7. The tunnel drilling and transportation steering device according to claim 6, characterized in that, The rolling mechanism (9) includes a ball (91), a pressure plate (92), a quick-release structure (93), and a locking plate (94); The ball bearing (91) is disposed in the arc groove of the steering platform (2) and the conical groove (95) of the pressure plate (92), and the locking plate (94) passes through the insertion hole of the pressure plate (92); The locking plate (94) has a through-hole (94-1) in the lateral direction. The quick-release structure (93) is used in conjunction with the locking plate (94) to fix the pressure plate (92).

8. The tunnel drilling and transportation steering device according to claim 7, characterized in that, The quick-release structure (93) includes a bracket (93-1), a stop block (93-2), a front retaining plate (93-3), a rear retaining plate (93-4), an L-shaped slide (93-5), and a pivot for connecting the front retaining plate (93-3) and the rear retaining plate (93-4); The stop block (93-2) is vertically connected to the horizontal plate of the insert (93-1), the front plate (93-3) and the rear plate (93-4) are rotatably connected to the insert (93-1), the L-shaped slide groove (93-5) is symmetrically opened on both sides of the longitudinal plate of the insert (93-1), and the rotating shaft of the rear plate (93-4) is inserted into the L-shaped slide groove (93-5); The insert (93-1) has a U-shaped cross-section and is inserted into the lock hole (94-1) of the lock plate (94).

9. The tunnel drilling construction transportation steering device according to claim 1, characterized in that, The tractor platform (1) is fixedly connected to a ramp (10) at its end. The ramp (10) is located below the ramp (5) of the fixed base (3), and the ramp (10) has the same slope as the ramp (5).

10. The tunnel drilling construction transportation steering device according to claim 9, characterized in that, The bottom of the tractor platform (1) is connected to a set of wheels (11), and hydraulic support legs (12) are installed between the set of wheels.

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