General slope roadway self-walking auxiliary device and ramp heading machine

Abstract

The invention belongs to the technical field of cantilever type heading machines, and particularly relates to a general slope roadway self-walking auxiliary device and a ramp heading machine. The self-walking auxiliary device is used for being installed on the heading machine, and the self-walking auxiliary device applies downward pressure to the heading machine with a roadway top plate as counter-force support. The self-walking auxiliary device comprises a folding and unfolding mechanism and a sliding mechanism, one end of the folding and unfolding mechanism is connected with the heading machine, the other end of the folding and unfolding mechanism is connected with the sliding mechanism, the folding and unfolding mechanism can lift the sliding mechanism to make contact with a roadway top plate or fold towards the heading machine, and the sliding mechanism can move and slide along with the heading machine. Through the self-walking auxiliary device, the gradeability of the heading machine is improved, and the heading machine can reliably and autonomously walk and excavate in a roadway with a general gradient (less than 25 degrees) under the condition of no external traction.

Description

Technical Field

[0001] The invention belongs to the technical field of cantilever type tunnel boring machines, and in particular relates to a self-propelled auxiliary device for a general slope tunnel and a slope tunnel boring machine. Background Art

[0002] Currently, cantilevered tunnel boring machines are generally suitable for tunneling in tunnels with slopes between ±18°. Outside the range of ±18°, the slope resistance increases significantly, and the tunnel boring machine's climbing driving force is insufficient, resulting in difficulty in the tunnel boring machine's movement, which in turn affects the use of the tunnel boring machine.

[0003] In order to solve this problem, external auxiliary push-pull methods are generally used to overcome the slope resistance so that the cantilevered tunnel boring machine can walk normally on a large slope; there is also a plan to add side walking mechanisms on both sides of the tunnel boring machine body and tighten the two sides of the tunnel to increase the traction of the tunnel boring machine to achieve large slope walking. The current plan inevitably either increases the process and slows down the tunneling speed; or affects the passage space of the tunnel. Summary of the invention

[0004] The purpose of the present invention is to improve the climbing ability of the tunnel boring machine so that the tunnel boring machine can stably and autonomously walk and dig in a tunnel with a normal slope (less than 25°) without external traction.

[0005] The present invention provides the following technical solutions: a self-propelled auxiliary device for a general slope tunnel and a slope tunnel boring machine, wherein the self-propelled auxiliary device is used to be installed on the tunnel boring machine, and the self-propelled auxiliary device uses the tunnel roof as a reaction force support to apply downward pressure to the tunnel boring machine;

[0006] The self-propelled auxiliary device includes a folding mechanism and a sliding mechanism. One end of the folding mechanism is used to connect with the tunnel boring machine, and the other end is connected with the sliding mechanism. The folding mechanism can lift the sliding mechanism to contact the tunnel roof or fold toward the tunnel boring machine, and the sliding mechanism can slide with the tunnel boring machine.

[0007] Furthermore, the folding and unfolding mechanism includes a support beam and a telescopic joint. The support beam can be connected to the tunnel boring machine through a swivel joint at the bottom. The top of the support beam is connected to the telescopic joint. The telescopic joint is connected to the sliding mechanism through a swivel joint at the top.

[0008] Furthermore, the folding and unfolding mechanism also includes a flip cylinder, one end of which can be hinged to the tunnel boring machine and the other end can be hinged to the support beam; the flip cylinder serves as the drive of the swivel joint at the bottom of the support beam; the swivel joint at the top of the telescopic joint includes a swing cylinder, which serves as the drive.

[0009] Furthermore, the sliding mechanism includes a walking track, a sliding support mechanism, a cable winding device, a traction rope I and a traction rope II;

[0010] The cable winding device comprises a hydraulic motor and a cable winding drum, and the cable winding drum has two cable storage grooves; the traction rope I and the traction rope II are respectively wound on the two cable storage grooves of the cable winding drum, and the winding directions of the traction rope I and the traction rope II are opposite;

[0011] The top of the walking track is used to contact the tunnel roof, and the bottom of the walking track, the sliding support mechanism is slidably matched with the walking track through rollers; the wheel frame of the sliding support mechanism is connected with the telescopic joint.

[0012] A guide wheel is arranged at one end of the walking track, and a cable drum of the cable winding device is arranged at the other end; the traction rope I passes around the roller of the sliding support mechanism and then turns back to the cable drum and is fixed on the walking track, and the traction rope II passes around the guide wheel and then is fixed on the wheel frame of the sliding support mechanism.

[0013] Furthermore, the wheel frame of the sliding support mechanism includes an ear plate and an elastic element, the ear plate is connected to the rotary joint at the top of the telescopic joint, and the roller is mounted on the ear plate through the elastic element.

[0014] Furthermore, the elastic element is a leaf spring assembly, two leaf spring assemblies are arranged side by side, the middle of the two leaf spring assemblies are fixed by ear plates, middle pressure plates and bolts, and the two sides are fixed by roller support frames, side pressure plates and bolts, and the two rollers are respectively installed on the roller support frames on both sides.

[0015] Furthermore, the telescopic joint is a booster cylinder with a rectangular cross-section of the cylinder barrel; a rectangular deep hole is opened at the top of the support beam, the cylinder barrel of the booster cylinder can be slidably sleeved in the rectangular deep hole, and the piston rod of the booster cylinder is connected to the bottom of the hole.

[0016] Furthermore, a guide groove is arranged on the circumferential surface of the roller, and the traction rope I is embedded in the guide groove.

[0017] Furthermore, the support beam is a double-sided broken line structure.

[0018] A slope tunnel boring machine includes a tunnel boring machine; it also includes the aforementioned general slope tunnel self-propelled auxiliary device; the general slope tunnel self-propelled auxiliary device is installed on the top of the tunnel boring machine in the center left and right through a support beam and a tilting cylinder, and the travel track is parallel to the moving direction of the tunnel boring machine.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] The self-propelled auxiliary device improves the climbing ability of the tunnel boring machine, and enables the tunnel boring machine to achieve reliable autonomous walking and excavation in tunnels with normal slopes (less than 25°) without external traction. The self-propelled auxiliary device relies on the internal booster cylinder to increase the positive pressure of the tunnel boring machine on the tunnel floor, thereby improving the adhesion of the tunnel boring machine and ultimately improving the driving force of the tunnel boring machine; the sliding support mechanism can adapt to the ups and downs of the tunnel roof and floor to prevent the tunnel boring machine from being impacted during walking; the walking track can reduce the friction between the tunnel boring machine and the tunnel roof, reducing walking resistance. The self-propelled auxiliary device is arranged on the upper part of the tunnel boring machine body, does not increase the width of the tunnel boring machine, and does not affect the passing space between the tunnel boring machine and the two sides of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of a self-propelled auxiliary device for a general slope lane;

[0022] Figure 2 It is a schematic diagram of the boost cylinder;

[0023] Figure 3 is a schematic diagram of a sliding support mechanism;

[0024] Figure 4 A schematic diagram of the walking track;

[0025] Figure 5 It is a schematic diagram of the cable winding device traction;

[0026] Figure 6 A side view of a ramp boring machine;

[0027] Figure 7 A top view of a ramp boring machine.

[0028] In the figure: 1-support beam; 2-turning cylinder; 3-boosting cylinder; 3.1-piston rod; 3.2-cylinder barrel; 3.3-support seat; 4-swinging cylinder; 5-sliding support mechanism; 5.1-ear plate; 5.2-side pressure plate; 5.3-roller support frame; 5.4-roller; 5.5-guide groove; 5.6-middle pressure plate; 5.7-leaf spring assembly; 6-travel track; 6.1-guide wheel; 6.2-guide groove; 7-cable winding device; 8-traction rope I; 9-traction rope II; 10-self-propelled auxiliary device for general slope tunnel; 11-tunnel boring machine; 12-tunnel roof. DETAILED DESCRIPTION

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Example 1

[0031] like Figure 1 As shown: a self-propelled auxiliary device for a general slope tunnel, the self-propelled auxiliary device is used to be installed on a tunnel boring machine, and the self-propelled auxiliary device uses the tunnel roof as a reaction force support to apply downward pressure to the tunnel boring machine, thereby increasing the friction between the tunnel boring machine and the tunnel floor.

[0032] The self-propelled auxiliary device includes a folding mechanism and a sliding mechanism. One end of the folding mechanism is used to connect with the tunnel boring machine, and the other end is connected with the sliding mechanism. The folding mechanism can lift the sliding mechanism to contact the tunnel roof or fold toward the tunnel boring machine, and the sliding mechanism can slide with the tunnel boring machine.

[0033] The folding and unfolding mechanism includes a support beam 1 and a telescopic joint. The support beam 1 can be connected to the tunnel boring machine through a swivel joint at the bottom. When the support beam 1 rotates, the self-walking assist device is lifted or lowered as a whole. The top of the support beam 1 is connected to the telescopic joint, and the telescopic joint lifts the sliding mechanism toward the tunnel roof. The telescopic joint is connected to the sliding mechanism through a swivel joint at the top. The swivel joint at the top of the telescopic joint adjusts the angle of the sliding mechanism to make the sliding mechanism fit against the tunnel roof.

[0034] The folding and unfolding mechanism also includes a tilting cylinder 2, one end of which can be hinged to the tunnel boring machine and the other end can be hinged to the support beam 1; the tilting cylinder 2 serves as the drive for the slewing joint at the bottom of the support beam 1; the slewing joint at the top of the telescopic joint includes a swinging cylinder 4, which serves as the drive.

[0035] like Figure 3 , Figure 4 , Figure 5 As shown: the sliding mechanism includes a walking track 6, a sliding support mechanism 5, a cable winding device 7; a traction rope Ⅰ8 and a traction rope Ⅱ9; the cable winding device 7 includes a hydraulic motor and a cable winding drum, and the cable winding drum has two cable storage grooves; the traction rope Ⅰ8 and the traction rope Ⅱ9 are respectively wound on the two cable storage grooves of the cable winding drum to prevent the two ropes from being entangled with each other, and the winding directions of the traction rope Ⅰ8 and the traction rope Ⅱ9 are opposite.

[0036] The running track 6 is a long "U"-shaped box beam. The top of the running track 6 is used to contact the tunnel roof. At the bottom of the running track 6, the sliding support mechanism 5 slides with the running track 6 through the roller 5.4; the wheel frame of the sliding support mechanism 5 is connected to the rotary joint at the top of the telescopic joint. When the tunnel boring machine is moving, the running track 6 is in close contact with the tunnel roof, and the roller 5.4 rolls in the running track 6, which can reduce the friction between the tunnel boring machine and the tunnel roof and reduce the walking resistance.

[0037] A guide wheel 6.1 is arranged at one end of the traveling track 6, and a cable drum of a cable winding device 7 is arranged at the other end. The hydraulic motor of the cable winding device 7 is fixed on the outside of the traveling track 6, and the hydraulic motor is connected to the cable drum; the traction rope I8 passes around the roller 5.4 of the sliding support mechanism 5 and then turns back to the cable drum and is fixed on the traveling track 6, and the traction rope II9 passes around the guide wheel 6.1 and is fixed on the wheel frame of the sliding support mechanism 5; the forward and backward movement of the traveling track 6 can be realized by forward and reverse rotation of the hydraulic motor of the cable winding device 7, and the traveling track 6 is fixed. When the sliding support mechanism 5 moves with the tunnel boring machine, the hydraulic motor of the cable winding device 7 rotates forward, and the tunnel boring machine and the sliding support mechanism 5 are stationary. When the hydraulic motor of the cable winding device 7 rotates reversely, the traveling track 6 moves.

[0038] A guide groove 5.5 is provided on the circumferential surface of the roller 5.4, and the traction rope I8 is embedded in the guide groove 5.5.

[0039] like Figure 3 As shown: the wheel frame of the sliding support mechanism 5 includes an ear plate 5.1 and an elastic element. The ear plate 5.1 is connected to the telescopic joint. The roller 5.4 is installed on the ear plate through the elastic element. The elastic element adapts to the ups and downs of the tunnel top and bottom plate to prevent the tunnel boring machine from being impacted when walking.

[0040] The elastic element is a leaf spring assembly 5.7, which has great rigidity and can withstand great positive pressure and lateral force. Two leaf spring assemblies 5.7 are arranged side by side, the middle of the two leaf spring assemblies 5.7 are fixed by ear plates 5.1, middle pressure plates 5.6 and bolts, and the two sides are fixed by roller support frames 5.3, side pressure plates 5.2 and bolts, and the two rollers 5.4 are respectively installed on the roller support frames 5.3 on both sides.

[0041] The telescopic joint is a booster cylinder 3 whose cylinder barrel 3.2 has a rectangular cross section; a rectangular deep hole is opened at the top of the support beam 1, and the cylinder barrel 3.2 of the booster cylinder 3 can be slidably sleeved in the rectangular deep hole to prevent the sliding mechanism from rotating, and the piston rod 3.1 of the booster cylinder 3 is connected to the bottom of the hole.

[0042] The support beam 1 is a double-sided broken line structure, and the support beam 1 can ensure that the force of the booster cylinder 3 is perpendicular to the tunnel roof in the diagonal bracing state.

[0043] The swing cylinder 4 is a spiral swing cylinder, the support seat end of the swing cylinder 4 and the support seat of the boost cylinder 3 are fixed by bolts, and the shaft end flange of the swing cylinder 4 and the ear plate of the elastic support device 5 are fixed by bolts.

[0044] Example 2

[0045] like Figure 6 , Figure 7As shown: a slope tunnel boring machine, including a tunnel boring machine; also including the self-propelled auxiliary device for a general slope tunnel in Example 1; the self-propelled auxiliary device for a general slope tunnel is installed on the top of the tunnel boring machine in the center through a support beam 1 and a tilting cylinder 2, and the walking track 6 is parallel to the moving direction of the tunnel boring machine.

[0046] A main ear plate and a cylinder ear plate are respectively arranged at the front and rear of the top of the tunnel boring machine, which are respectively hinged to the hinge hole of the support beam 1 of the self-propelled auxiliary device and the bottom end of the tilting cylinder 2.

[0047] In a generally sloping tunnel, when the traveling power of the tunnel boring machine is insufficient, the tilting cylinder 2 is extended and the supporting beam 1 is swung to the extreme position; at the same time, the swinging cylinder 4 is operated to adjust the traveling track 6 to be roughly parallel to the tunnel roof; the hydraulic motor of the cable winding device 7 is operated to pull the traveling track 6 forward and backward through the traction rope Ⅰ8 and the traction rope Ⅱ9; then the booster cylinder 3 is operated to extend to push the traveling track 6 to tightly support the tunnel roof; then the steep-slope tunnel boring machine can be operated to move forward and backward.

[0048] When not working, operate the boost cylinder 3 to retract; then operate the flip cylinder 2 to retract and fold down the self-propelled auxiliary device; at the same time, operate the swing cylinder 4 to adjust the walking track 6 to be roughly parallel to the tunnel roof; finally, it can be close to the tunnel boring machine body.

[0049] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-propelled auxiliary device for general slope lanes, characterized in that: The self-propelled auxiliary device is used to be installed on the tunnel boring machine. The self-propelled auxiliary device uses the tunnel roof as a reaction force support to exert downward pressure on the tunnel boring machine. The self-propelled auxiliary device includes a folding mechanism and a sliding mechanism. One end of the folding mechanism is used to connect with the tunnel boring machine, and the other end is connected with the sliding mechanism. The folding mechanism can lift the sliding mechanism to contact the tunnel roof or fold toward the tunnel boring machine, and the sliding mechanism can slide with the tunnel boring machine.

2. The self-propelled auxiliary device for general slope lanes according to claim 1, characterized in that: The folding and unfolding mechanism comprises a support beam (1) and a telescopic joint. The support beam (1) can be connected to a tunnel boring machine via a swivel joint at the bottom. The top of the support beam (1) is connected to the telescopic joint. The telescopic joint is connected to a sliding mechanism via a swivel joint at the top.

3. The self-propelled auxiliary device for general slope lanes according to claim 2, characterized in that: The folding and unfolding mechanism also includes a tilting cylinder (2), one end of which can be hinged to the tunnel boring machine and the other end of which is hinged to the support beam (1); the tilting cylinder (2) serves as a driver for the slewing joint at the bottom of the support beam (1); the slewing joint at the top of the telescopic joint includes a swinging cylinder (4), which serves as a driver.

4. The self-propelled auxiliary device for general slope lanes according to claim 2, characterized in that: The sliding mechanism comprises a walking track (6), a sliding support mechanism (5), a cable winding device (7); a traction rope I (8) and a traction rope II (9); The cable winding device (7) comprises a hydraulic motor and a cable winding drum, wherein the cable winding drum has two cable storage grooves; the traction rope I (8) and the traction rope II (9) are respectively wound on the two cable storage grooves of the cable winding drum, and the winding directions of the traction rope I (8) and the traction rope II (9) are opposite; The top of the walking track (6) is used to contact the tunnel roof, and the bottom of the walking track (6) and the sliding support mechanism (5) are slidably matched with the walking track (6) through rollers (5.4); the wheel frame of the sliding support mechanism (5) is connected to the telescopic joint. A guide wheel (6.1) is arranged at one end of the walking track (6), and a cable drum of a cable winding device (7) is arranged at the other end; a traction rope I (8) After passing the roller (5.4) of the sliding support mechanism (5), it is folded back to the cable drum and fixed on the walking track (6); the traction rope II (9) passes the guide wheel (6.1) and is fixed on the wheel frame of the sliding support mechanism (5).

5. The self-propelled auxiliary device for normal slope lanes according to claim 4, characterized in that: The wheel frame of the sliding support mechanism (5) comprises an ear plate (5.1) and an elastic element. The ear plate (5.1) is connected to the rotary joint at the top of the telescopic joint, and the roller (5.4) is mounted on the ear plate via the elastic element.

6. The self-propelled auxiliary device for normal slope lanes according to claim 5, characterized in that: The elastic element is a leaf spring assembly (5.7), two leaf spring assemblies (5.7) are arranged side by side, the middle of the two leaf spring assemblies (5.7) are fixed by an ear plate (5.1), a middle pressure plate (5.6) and bolts, and the two sides are fixed by a roller support frame (5.3), a side pressure plate (5.2) and bolts, and the two rollers (5.4) are respectively installed on the roller support frames (5.3) on both sides.

7. The self-propelled auxiliary device for normal slope lanes according to claim 2, characterized in that: The telescopic joint is a booster cylinder (3) whose cylinder barrel (3.2) has a rectangular cross section; a rectangular deep hole is opened at the top of the support beam (1), the cylinder barrel (3.2) of the booster cylinder (3) can be slidably sleeved in the rectangular deep hole, and the piston rod (3.1) of the booster cylinder (3) is connected to the bottom of the hole.

8. The self-propelled auxiliary device for normal slope lanes according to claim 4, characterized in that: A guide groove (5.5) is arranged on the circumferential surface of the roller (5.4), and the traction rope I (8) is embedded in the guide groove (5.5).

9. The self-propelled auxiliary device for normal slope lanes according to claim 2, characterized in that: The support beam (1) is a double-sided broken line structure.

10. A ramp boring machine, comprising a boring machine; characterized in that: It also includes the self-propelled auxiliary device for general slope tunnels as described in claim 6; the self-propelled auxiliary device for general slope tunnels is installed on the top of the tunnel boring machine in the center left and right through the support beam (1) and the tilting cylinder (2), and the walking track (6) is parallel to the moving direction of the tunnel boring machine.

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