Supporting device for tunneling

Abstract

The invention relates to the technical field of industry and mining, in particular to a supporting device for tunneling, which comprises a mounting mechanism fixed on a tunneling machine; a main supporting mechanism is slidably arranged on the mounting mechanism, an auxiliary supporting mechanism is fixedly arranged on the mounting mechanism, and driving parts of the main supporting mechanism and the auxiliary supporting mechanism are communicated with the hydraulic system; during the advancing work of the heading machine, the roadway top of the heading end is mainly supported by the main supporting mechanism and is supported by the auxiliary supporting mechanism in an auxiliary mode; when the heading machine stops working, the top of the heading end roadway is mainly supported by the auxiliary supporting mechanism. According to the supporting and protecting device for tunneling, the construction safety is improved in an alternate supporting and protecting mode.

Description

Technical Field

[0001] The invention relates to the technical field of industry and mining, and in particular to a supporting device for excavation. Background Art

[0002] Roadheaders are special mechanical equipment used for underground excavation, usually used for earthwork excavation in places such as tunnels, mines and other underground projects. Roadheaders can efficiently complete large-scale excavation tasks, so they are widely used in construction, transportation, mining and other industries.

[0003] At present, when the tunnel boring machine is working, it is necessary to support and protect the tunnel top at the tunneling end through supporting and protecting components, and to ensure the relative position of the supporting and protecting components and the tunnel top at the tunneling end through the hydraulic system. However, conventional supporting and protecting components still have the following defects:

[0004] When the support and protection components exceed the folding range, they need to be extended again. During this period, there is no support and protection, which poses a construction risk. Summary of the invention

[0005] In order to solve the technical problems existing in the background technology, the present invention provides a support device for excavation, which improves construction safety by an alternating support and protection method.

[0006] The technical solution adopted by the present invention is:

[0007] A support device for tunneling includes: a mounting mechanism fixed on a tunneling machine, on which: a main support mechanism is slidably arranged and a secondary support mechanism is fixedly arranged, and the driving components of the main support mechanism and the secondary support mechanism are interconnected with a hydraulic system.

[0008] The TBM performs traveling work intermittently: during the traveling work of the TBM, the top of the tunnel at the excavation end is mainly supported by the main support mechanism and auxiliary supported by the auxiliary support mechanism; during the period when the TBM stops traveling, the top of the tunnel at the excavation end is mainly supported by the auxiliary support mechanism.

[0009] Furthermore, the installation mechanism comprises:

[0010] The mounting arms are symmetrically fixedly arranged on both sides of the tunnel boring machine, and a container box is arranged at one end of the mounting arm away from the tunneling direction, a through groove is arranged through the upper end of the container box, and a horizontal cylinder is arranged on the outer wall of the container box;

[0011] A curved arm is arranged at one end of the mounting arm close to the excavation direction.

[0012] Furthermore, a waist hole group is provided through the mounting arm, and the waist hole group is used to fix to the tunnel boring machine.

[0013] Furthermore, there are multiple groups of waist hole groups staggeredly arranged along the direction of the mounting arm.

[0014] Furthermore, the main support mechanism comprises:

[0015] A sliding arm is slidably inserted in the container and connected to the stroke end of the horizontal cylinder, a lifting arm is hingedly provided at one end of the sliding arm close to the excavation direction, and a main lifting cylinder is provided between the lifting arm and the sliding arm;

[0016] A main support frame is hingedly arranged at the end of the lifting arm, and an adjusting cylinder is arranged between the main support frame and the lifting arm.

[0017] Furthermore, the hinged seat of the sliding arm and the main lifting cylinder is accommodated in the through groove.

[0018] Furthermore, the secondary support mechanism comprises:

[0019] A support base is fixedly arranged on the upper end of the crank arm, an auxiliary lifting cylinder is fixedly arranged on the upper end of the support base, and an auxiliary supporting frame is fixedly arranged on the stroke end of the auxiliary lifting cylinder.

[0020] Furthermore, the main support frame is configured in a "□" shape;

[0021] The auxiliary supporting frame is accommodated in the main supporting frame.

[0022] Furthermore, the tunneling machine is provided with a control mechanism;

[0023] The hydraulic system is electrically connected to the control mechanism.

[0024] A working method of a tunneling support device, comprising:

[0025] The tunnel boring machine is moving:

[0026] The control mechanism controls the hydraulic system: the main lifting cylinder adjusts the height of the end of the lifting arm, the adjusting cylinder adjusts the horizontality of the main support frame, the horizontal cylinder adjusts the sliding arm in the container, and according to the travel speed of the tunnel boring machine, the main support frame is attached to and supports the top of the tunnel at the excavation end;

[0027] The control mechanism controls the hydraulic system to make the auxiliary lifting cylinder adjust the height of the auxiliary support frame so that the upper top surface of the auxiliary support frame is lower than the upper top surface of the main support frame. The auxiliary support frame assists in supporting the top of the tunnel at the excavation end, and the auxiliary support frame in the main support frame moves along the excavation direction of the tunneling machine;

[0028] The tunnel boring machine stops moving:

[0029] The control mechanism controls the hydraulic system to make the auxiliary lifting cylinder adjust the height of the auxiliary support frame so that the upper top surface of the auxiliary support frame is higher than the upper top surface of the main support frame, and the auxiliary support frame fits and supports the top of the tunnel at the excavation end;

[0030] The control mechanism controls the hydraulic system to make the horizontal cylinder adjust the sliding arm in the container, so that the auxiliary support frame in the main support frame moves in the opposite direction of the tunneling machine until the auxiliary support frame reaches the rearmost position in the main support frame;

[0031] The control mechanism controls the hydraulic system: the main lifting cylinder adjusts the height of the end of the lifting arm, the adjusting cylinder adjusts the horizontality of the main support frame, and the horizontal cylinder adjusts the sliding arm in the container box, so that the main support frame fits and supports the top of the tunnel at the excavation end.

[0032] The advantages of the tunneling support device of the present invention are:

[0033] By means of alternating support and protection by the main support mechanism and the auxiliary support mechanism, complete support and protection of the tunnel top at the excavation end can be achieved during the excavation construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific implementation of the present invention, the drawings required in the specific implementation are briefly introduced below. The drawings in the following description are implementations of the present invention.

[0035] Figure 1 It is a general three-dimensional schematic diagram of a tunneling support device provided by an example of the present invention;

[0036] Figure 2 The present invention provides a three-dimensional schematic diagram of a switch body of a tunneling support device. Figure 1 ;

[0037] Figure 3 This invention is an example Figure 1 A three-dimensional enlarged schematic diagram of part A;

[0038] Figure 4 This invention is an example Figure 1 A three-dimensional enlarged schematic diagram of part B;

[0039] Figure 5 This invention is an example Figure 2 A three-dimensional enlarged schematic diagram of part C in the middle.

[0040] In the figure:

[0041] 1. Installation mechanism,

[0042] 10. Mounting arm, 11. Waist hole group, 12. Container, 13. Slot, 14. Horizontal cylinder, 15. Crank arm,

[0043] 2. Main support mechanism,

[0044] 20. Sliding arm, 21. Lifting arm, 22. Main lifting cylinder, 23. Adjusting cylinder, 24. Main support frame,

[0045] 3. Secondary support mechanism,

[0046] 30. Support base, 31. Auxiliary lifting cylinder, 32. Auxiliary supporting frame. DETAILED DESCRIPTION

[0047] In order to more clearly and specifically explain the specific implementation purpose and implementation mode of the present invention, the technical solution of the present invention will be fully described below. The described embodiments are part of the embodiments of the present invention, but not all of them. Without making creative work, all other embodiments based on the embodiments described in the present invention belong to the protection scope of the present invention.

[0048] The present invention provides a tunneling support device, such as Figure 1 , Figure 2 As shown, including:

[0049] A mounting mechanism 1 fixed on the tunnel boring machine, on which: a main supporting mechanism 2 is slidably arranged, and a secondary supporting mechanism 3 is fixedly arranged, and the driving components of the main supporting mechanism 2 and the secondary supporting mechanism 3 are interconnected with the hydraulic system. A control mechanism is arranged on the tunnel boring machine, and the hydraulic system is electrically connected to the control mechanism.

[0050] Installation mechanism 1, such as Figure 3 , Figure 4 As shown, including:

[0051] The mounting arms 10 are symmetrically fixed on both sides of the tunnel boring machine, and are penetrated by waist hole groups 11. A plurality of waist hole groups 11 are staggered along the direction of the mounting arms 10 for fixing to the tunnel boring machine. A container box 12 is arranged at one end of the mounting arm 10 away from the tunnel boring direction, and a through groove 13 is penetrated at the upper end of the container box 12. A horizontal cylinder 14 is arranged on the outer wall of the container box 12, and a curved arm 15 is arranged at one end of the mounting arm 10 close to the tunnel boring direction.

[0052] Main support mechanism 2, such as Figure 3 , Figure 4 , Figure 5 As shown, including:

[0053] A sliding arm 20 is slidably inserted in the container box 12 and connected to the stroke end of the horizontal cylinder 14. A lifting arm 21 is hingedly provided at one end of the sliding arm 20 close to the excavation direction. A main lifting cylinder 22 is provided between the lifting arm 21 and the sliding arm 20. The hinge seat of the main lifting cylinder 22 and the sliding arm 20 is accommodated in the groove 13. A main support frame 24 is hingedly provided at the end of the lifting arm 21. The main support frame 24 is configured in a "□" shape. An adjusting cylinder 23 is provided between the main support frame 24 and the lifting arm 21.

[0054] Auxiliary support mechanism 3, such as Figure 5 As shown, including:

[0055] A support base 30 is fixedly arranged on the upper end of the crank arm 15 , and an auxiliary lifting cylinder 31 is fixedly arranged on the upper end of the support base 30 . An auxiliary support frame 32 is fixedly arranged on the stroke end of the auxiliary lifting cylinder 31 . The auxiliary support frame 32 is accommodated in the main support frame 24 .

[0056] According to the specific structure of a tunneling support device in the above embodiment, the working method of a tunneling support device is further described below:

[0057] The tunnel boring machine is moving, and the tunnel top at the excavation end is mainly supported by the main support mechanism 2 and auxiliary supported by the auxiliary support mechanism 3, which specifically includes:

[0058] The control mechanism controls the hydraulic system: the main lifting cylinder 22 adjusts the height of the end of the lifting arm 21, the adjusting cylinder 23 adjusts the horizontality of the main support frame 24, the horizontal cylinder 14 adjusts the sliding arm 20 in the container 12, and according to the traveling speed of the tunnel boring machine, the main support frame 24 is attached to and supports the top of the tunnel at the excavation end;

[0059] The control mechanism controls the hydraulic system to make the auxiliary lifting cylinder 31 adjust the height of the auxiliary support frame 32 so that the upper top surface of the auxiliary support frame 32 is lower than the upper top surface of the main support frame 24. The auxiliary support frame 32 assists in supporting the top of the tunnel at the excavation end, and the auxiliary support frame 32 in the main support frame 24 moves in the excavation direction of the tunneling machine;

[0060] The tunnel boring machine stops moving, and the tunnel top at the excavation end is mainly supported by the auxiliary support mechanism 3, which specifically includes:

[0061] The control mechanism controls the hydraulic system to make the auxiliary lifting cylinder 31 adjust the height of the auxiliary support frame 32 so that the upper top surface of the auxiliary support frame 32 is higher than the upper top surface of the main support frame 24, and the auxiliary support frame 32 is attached to and supports the top of the tunnel at the excavation end;

[0062] The control mechanism controls the hydraulic system to make the horizontal cylinder 14 adjust the sliding arm 20 in the container 12, so that the auxiliary support frame 32 in the main support frame 24 moves in the opposite direction of the tunneling machine until the auxiliary support frame 32 reaches the rearmost position in the main support frame 24;

[0063] The control mechanism controls the hydraulic system: the main lifting cylinder 22 adjusts the height of the end of the lifting arm 21, the adjusting cylinder 23 adjusts the horizontality of the main support frame 24, and the horizontal cylinder 14 adjusts the sliding arm 20 in the container 12, so that the main support frame 24 fits and supports the top of the tunnel at the excavation end.

[0064] Based on the above, an embodiment of a tunneling support device of the present invention is used as inspiration. Through the above description, relevant personnel can make various changes and modifications without departing from the scope of the technical idea of ​​the present invention.

Claims

1. A support device for excavation, characterized in that: include: A mounting mechanism (1) fixed on a tunnel boring machine, wherein: a main supporting mechanism (2) is slidably arranged on the mounting mechanism (1), and a secondary supporting mechanism (3) is fixedly arranged on the mounting mechanism (1), and the driving components of the main supporting mechanism (2) and the secondary supporting mechanism (3) are interconnected with a hydraulic system; The tunnel boring machine performs intermittent traveling work: During the traveling work of the tunnel boring machine, the tunnel top at the tunneling end is mainly supported by the main support mechanism (2) and auxiliary supported by the auxiliary support mechanism (3); When the tunnel boring machine stops moving, the tunnel top at the tunneling end is mainly supported by the auxiliary support mechanism (3).

2. A tunneling support device according to claim 1, characterized in that: The mounting mechanism (1) comprises: Mounting arms (10) are symmetrically fixedly arranged on both sides of the tunnel boring machine, a container box (12) is arranged at one end of the mounting arm (10) away from the tunnel boring direction, a through groove (13) is arranged through the upper end of the container box (12), and a horizontal cylinder (14) is arranged on the outer wall of the container box (12); A curved arm (15) is provided at one end of the mounting arm (10) close to the excavation direction.

3. A tunneling support device according to claim 2, characterized in that: The mounting arm (10) is provided with a waist hole group (11) penetrating therethrough, and the waist hole group (11) is used to be fixed to the tunnel boring machine.

4. A tunneling support device according to claim 3, characterized in that: The waist hole groups (11) are arranged in a staggered manner in a plurality of groups along the direction of the mounting arm (10).

5. A tunneling support device according to claim 2, characterized in that: The main supporting mechanism (2) comprises: A sliding arm (20) is slidably inserted in the container box (12) and connected to the stroke end of the horizontal cylinder (14); a lifting arm (21) is hingedly provided at one end of the sliding arm (20) close to the excavation direction; a main lifting cylinder (22) is provided between the lifting arm (21) and the sliding arm (20); A main support frame (24) is hingedly provided at the end of the lifting arm (21), and an adjustment cylinder (23) is provided between the main support frame (24) and the lifting arm (21).

6. A tunneling support device according to claim 5, characterized in that: The hinged seat of the sliding arm (20) and the main lifting cylinder (22) is accommodated in the through groove (13).

7. A tunneling support device according to claim 5, characterized in that: The auxiliary support mechanism (3) comprises: A support base (30) is fixedly arranged on the upper end of the crank arm (15), an auxiliary lifting cylinder (31) is fixedly arranged on the upper end of the support base (30), and an auxiliary support frame (32) is fixedly arranged on the stroke end of the auxiliary lifting cylinder (31).

8. A tunneling support device according to claim 7, characterized in that: The main support frame (24) is arranged in a "□" shape; The auxiliary support frame (32) is accommodated in the main support frame (24).

9. A tunneling support device according to claim 8, characterized in that: The tunnel boring machine is provided with a control mechanism; The hydraulic system is electrically connected to the control mechanism.

10. A working method of a tunneling support device, according to the tunneling support device of claim 9, characterized in that: The tunnel boring machine is moving: The control mechanism controls the hydraulic system to make the main lifting cylinder (22) adjust the height of the end of the lifting arm (21), make the adjusting cylinder (23) adjust the horizontality of the main support frame (24), make the horizontal cylinder (14) adjust the sliding arm (20) in the container box (12), and make the main support frame (24) fit and support the top of the tunnel at the excavation end according to the travel speed of the tunnel boring machine; The control mechanism controls the hydraulic system to make the auxiliary lifting cylinder (31) adjust the height of the auxiliary support frame (32) so that the upper top surface of the auxiliary support frame (32) is lower than the upper top surface of the main support frame (24), the auxiliary support frame (32) assists in supporting the top of the tunnel at the excavation end, and the auxiliary support frame (32) in the main support frame (24) moves along the excavation direction of the tunneling machine; The tunnel boring machine stops moving: The control mechanism controls the hydraulic system to make the auxiliary lifting cylinder (31) adjust the height of the auxiliary support frame (32) so that the upper top surface of the auxiliary support frame (32) is higher than the upper top surface of the main support frame (24), and the auxiliary support frame (32) is attached to and supports the top of the tunnel at the excavation end; The control mechanism controls the hydraulic system to make the horizontal cylinder (14) adjust the sliding arm (20) in the container (12), so that the auxiliary support frame (32) in the main support frame (24) moves in the opposite direction of the excavation of the tunnel boring machine until the auxiliary support frame (32) reaches the rearmost position in the main support frame (24); The control mechanism controls the hydraulic system: the main lifting cylinder (22) adjusts the height of the end of the lifting arm (21), the adjusting cylinder (23) adjusts the horizontality of the main support frame (24), and the horizontal cylinder (14) adjusts the sliding arm (20) in the container box (12) so that the main support frame (24) fits and supports the top of the tunnel at the excavation end.

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