TBM onboard automatic telescopic supporting tackle

Abstract

The invention relates to the technical field of mechanical engineering, in particular to a TBM onboard automatic telescopic supporting tackle which is characterized in that a pulley mechanism is arranged at the bottom of a tackle body; the hydraulic oil cylinder is fixed to the right side wall of the tackle body and connected with an external power source. The reinforcing mechanism is arranged on the tackle body and connected with the hydraulic oil cylinder. The supporting mechanisms are arranged on the left and right in the tackle body respectively. A hydraulic oil cylinder is adopted to control the pulley body to move forwards and backwards, the pulley body is matched to move between the sliding rail limiting plates, stable and efficient movement of the pulley body is achieved, and the supporting platform adjusting flexibility is improved. Loosening of the hydraulic oil cylinder caused by overlarge gravity is effectively prevented, the system stability is enhanced, extra supporting force is provided for the hydraulic drilling rig, and the equipment stability during operation is ensured; the onboard automatic telescopic supporting tackle body provides an integrated mounting platform for the hydraulic drilling rig, synchronous operation of tunneling and supporting of the double-shield TBM is achieved, and the supporting efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical engineering, and particularly relates to a TBM airborne automatic telescopic support trolley. Background Art

[0002] During the tunneling construction of a double-shield TBM in an underground coal mine, the trailing trailer and support platform of the TBM mainly use ground wheeled walking to move forward step by step. In the initial stage, a pneumatic bolt machine is used for support operations, and a hydraulic drill is not equipped for support. Since the TBM tunneling speed is fast, while the support speed of the pneumatic bolt machine is slow and time-consuming, the support lags far behind the TBM tunneling, resulting in low TBM tunneling efficiency and seriously affecting the tunneling speed. The TBM equipment cannot effectively exert its tunneling potential during tunneling. For this reason, a TBM airborne automatic telescopic support trolley is proposed. Summary of the Invention

[0003] The purpose of the present invention is to provide a TBM airborne automatic telescopic support trolley in view of the defects and deficiencies of the prior art. The hydraulic cylinder is used to control the forward and backward movement of the trolley body, and it cooperates with the pulley body to move between the slide rail limit plates, realizing the stable and efficient movement of the trolley body and improving the flexibility of the support platform adjustment; effectively preventing the hydraulic cylinder from loosening due to excessive gravity, enhancing the system stability, providing an additional supporting force for the hydraulic drill, and ensuring the stability of the equipment during operation; the airborne automatic telescopic support trolley body provides an integrated installation platform for the hydraulic drill, realizing the synchronous operation of double-shield TBM tunneling and support, and significantly improving the support efficiency.

[0004] To achieve the above object, the present invention adopts the following technical solutions: It includes a trolley body;

[0005] It further includes:

[0006] A pulley mechanism, and the pulley mechanism is arranged at the bottom of the trolley body;

[0007] A hydraulic cylinder, and the hydraulic cylinder is fixed on the right side wall of the trolley body and is connected to an external power supply;

[0008] A reinforcement mechanism, and the reinforcement mechanism is arranged on the trolley body and is connected to the hydraulic cylinder;

[0009] A support mechanism, and the number of the support mechanisms is several, and they are respectively arranged on the left and right inside the trolley body;

[0010] Through the design of the above technical solution, it is installed on the support platform. The external pipeline of the TBM on-board hydraulic pump station provides power for the hydraulic cylinder. The brake of the sliding body moves forward and backward under the control of the hydraulic cylinder to adjust the support position of the drill. By researching and installing the on-board automatic telescopic support sliding body, a mounting and fixing platform device is provided for the hydraulic drill, and the double-shield TBM realizes the hydraulic rotary support operation, greatly improving the support efficiency, achieving the balance between tunneling and support, and comprehensively enhancing the tunneling and support efficiency.

[0011] Preferably, the pulley mechanism includes:

[0012] Pulley bodies, the number of the pulley bodies is several, and they are respectively arranged in a matrix distribution on the front, back, left and right of the sliding body;

[0013] Connecting shafts, the number of the connecting shafts is two, and they are respectively inserted and fixed with the front and rear pulley bodies. The connecting shafts are rotatably connected through bearings and arranged in the sliding body;

[0014] Sliding rails, the number of the sliding rails is several, and they are respectively arranged at the bottom of the pulley bodies; several limiting plates are integrally formed on the sliding rails, and the limiting plates are arranged between two adjacent pulley bodies;

[0015] Through the design of the above technical solution, when the sliding body moves, the pulley bodies move between the limiting plates on the sliding rails, making the movement of the sliding body smooth.

[0016] Preferably, two front and rear reinforcement pipes are rotatably sleeved on the connecting shaft through bearings, and the reinforcement pipes are rotatably sleeved on the sliding body through bearings;

[0017] Through the design of the above technical solution, the reinforcement pipes make the load-bearing effect of the pulley bodies better.

[0018] Preferably, convex strips are integrally formed on the limiting plates, corresponding grooves are opened on the connecting shafts, and the convex strips and the grooves are arranged in rolling and embedding settings;

[0019] Through the design of the above technical solution, the rolling and embedding setting of the convex strips and the grooves helps the movement.

[0020] Preferably, annular grooves are opened on the opposite side walls between the pulley bodies, sliding grooves are opened on the side walls of the limiting plates, and balls are arranged in rolling and embedding settings at the intersections of the annular grooves and the sliding grooves;

[0021] Through the design of the above technical solution, balls are arranged in rolling and embedding settings at the intersections of the annular grooves and the sliding grooves, which helps the movement of the pulley bodies.

[0022] Preferably, the sliding rails are arranged in a left-right splicing manner; a connecting frame is fixed at the connection of the left and right sliding rails. The connecting frame is in an "L" shape structure and is arranged at the front side and the bottom of the connection of the sliding rails; a backing plate is fixed at the bottom of the sliding rails;

[0023] Through the above technical solution design, when connecting two slide rails, they are connected to the bottom and the front side of the slide rails through a connecting frame, and the slide rails on both sides are fixed. The backing plate raises the slide rails to be flush with the connecting frame, making the trolley body run stably.

[0024] Preferably, the reinforcement mechanism includes:

[0025] Reinforcement frames, the number of the reinforcement frames is several, and they are respectively fixedly distributed in a ring on the right side wall of the trolley body. The reinforcement frames are in an "L" shape and abut against the installation end of the hydraulic cylinder;

[0026] Connecting plates, the number of the connecting plates is several, and they respectively abut against the outer shell of the connecting end of the movable rod of the hydraulic cylinder. The connecting plates are arranged in one-to-one correspondence with the reinforcement frames;

[0027] Connecting screws, the number of the connecting screws is several, and they are respectively screwed through the connecting plates, the reinforcement frames and the trolley body by threads;

[0028] Through the above technical solution design, the reinforcement frames are fixedly distributed in a ring on the right side wall of the trolley body, the reinforcement frames abut against the installation end of the hydraulic cylinder, the connecting screws are respectively screwed through the connecting plates, the reinforcement frames and the trolley body by threads, and the connecting plates abut against the outer shell of the connecting end of the movable rod of the hydraulic cylinder, so that when the hydraulic cylinder drives the trolley body to move, the installation end of the hydraulic cylinder will not be loosened due to excessive gravity.

[0029] Preferably, the support mechanism all includes:

[0030] Support plates, the support plates are arranged inside the trolley body;

[0031] Moving screws, the moving screws are screwed through the side wall of the trolley body by threads, and the inner ends of the moving screws are rotatably connected to the support plates through bearings;

[0032] First limiting rods, the first limiting rods are fixed on the support plates, and the first limiting rods are movably inserted into the side wall of the trolley body;

[0033] Through the above technical solution design, after installing a hydraulic drill on the trolley body, rotate the moving screw, and under the action of the first limiting rod, the support plate moves to abut against the hydraulic drill.

[0034] Preferably, the second limiting rod is connected to the side wall of the trolley body through a shaft and a bearing seat. A limiting tube is movably sleeved on the second limiting rod, and the limiting tube is connected to the outer side wall of the support plate through a shaft and a bearing seat; after the fixing bolt is screwed through the limiting tube by threads, its inner end abuts against the second limiting rod;

[0035] Through the design of the above technical solution, tightening the fixing bolt fixes the limit pipe and the second limit rod, so that the support plate abuts against the hydraulic drill, further providing a supporting force.

[0036] Compared with the prior art, the beneficial effects of the present invention are:

[0037] 1. The hydraulic cylinder is used to control the forward and backward movement of the trolley body, and it cooperates with the pulley body to move between the slide rail limit plates, realizing the stable and efficient movement of the trolley body and improving the flexibility of adjusting the support platform;

[0038] 2. It effectively prevents the hydraulic cylinder from loosening due to excessive gravity, enhances the system stability, provides an additional supporting force for the hydraulic drill, and ensures the stability of the equipment during operation; The on-board automatic telescopic support trolley body provides an integrated installation platform for the hydraulic drill, realizing the synchronous operation of double-shield TBM tunneling and support, and significantly improving the support efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a schematic structural view of the present invention.

[0040] Figure 2 is a southwest isometric view of the present invention.

[0041] Figure 3 is Figure 2 an enlarged view of part A in

[0042] Figure 4 is Figure 2 an enlarged view of part B in

[0043] Figure 5 is a southeast isometric view of the present invention.

[0044] Figure 6 is Figure 5 an enlarged view of part C in

[0045] Figure 7 is Figure 5 an enlarged view of part D in

[0046] Figure 8 is a cross-sectional view of the pulley body and the limit plate in the present invention.

[0047] Figure 9 is a schematic structural view of the connecting shaft and the reinforcement pipe in the present invention.

[0048] Description of the reference numerals:

[0049] Pulley body 1, pulley mechanism 2, pulley body 2-1, connecting shaft 2-2, reinforcing pipe 2-3, slide rail 2-4, limiting plate 2-5, convex strip 2-6, groove 2-7, ring groove 2-8, chute 2-9, ball 2-10, connecting frame 2-11, backing plate 2-12, hydraulic cylinder 3, reinforcing mechanism 4, reinforcing frame 4-1, connecting plate 4-2, connecting screw 4-3, supporting mechanism 5, supporting plate 5-1, moving screw 5-2, first limiting rod 5-3, second limiting rod 5-4, limiting pipe 5-5, fixing bolt 5-6. Detailed implementation mode

[0050] Next, in combination with the attached drawings, the technical solutions in the present invention will be clearly and completely described. Only the preferred embodiments in the description are taken as examples. All other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present invention.

[0051] The following technical solutions are adopted in this detailed implementation mode:

[0052] Embodiment 1:

[0053] Please refer to Figure 1 , this Embodiment 1 includes a pulley body 1;

[0054] It also includes:

[0055] A pulley mechanism 2, and the pulley mechanism 2 is arranged at the bottom of the pulley body 1;

[0056] A hydraulic cylinder 3, and the hydraulic cylinder 3 is fixed on the right side wall of the pulley body 1. The hydraulic cylinder 3 is connected to an external power supply. The specific model of the hydraulic cylinder 3 is directly purchased, installed and used from the market according to actual use requirements;

[0057] A reinforcing mechanism 4, and the reinforcing mechanism 4 is arranged on the pulley body 1 and is connected to the hydraulic cylinder 3;

[0058] A supporting mechanism 5, and the number of the supporting mechanisms 5 is several, and they are respectively arranged on the left and right inside the pulley body 1.

[0059] Embodiment 2:

[0060] Please refer to Figure 2 , 3 , 8, 9. On the basis of Embodiment 1, the pulley mechanism 2 includes:

[0061] Pulley bodies 2-1, and the number of the pulley bodies 2-1 is several, and they are respectively arranged in a matrix distribution in the front, back, left and right of the pulley body 1;

[0062] The connecting shafts 2-2, the number of the connecting shafts 2-2 is two, and they are respectively inserted and fixed to the front and rear pulley bodies 2-1, and the connecting shafts 2-2 are rotatably connected to the inside of the trolley body 1 through bearings; two front and rear reinforcing pipes 2-3 are rotatably sleeved on the connecting shafts 2-2 through bearings, and the reinforcing pipes 2-3 are rotatably sleeved on the trolley body 1 through bearings;

[0063] The slide rails 2-4, the number of the slide rails 2-4 is several, and they are respectively arranged at the bottoms of the pulley bodies 2-1; several limiting plates 2-5 are integrally formed on the slide rails 2-4, and the limiting plates 2-5 are arranged between two adjacent pulley bodies 2-1; a rib 2-6 is integrally formed on the limiting plate 2-5, a corresponding groove 2-7 is formed on the connecting shaft 2-2, and the rib 2-6 and the groove 2-7 are arranged in a rolling and embedding manner; annular grooves 2-8 are formed on the opposite side walls between the pulley bodies 2-1, sliding grooves 2-9 are formed on the side walls of the limiting plates 2-5, and balls 2-10 are rollingly embedded at the intersections of the annular grooves 2-8 and the sliding grooves 2-9.

[0064] Embodiment 3:

[0065] Please refer to Figures 1-3 , the difference from Embodiment 2 is that the slide rails 2-4 are arranged in a left-right splicing manner; a connecting frame 2-11 is fixed by bolts at the connection of the left and right slide rails 2-4, the connecting frame 2-11 is in an "L" shape structure, and the connecting frame 2-11 is arranged at the front side and the bottom of the connection of the slide rails 2-4; a backing plate 2-12 is fixed at the bottom of the slide rail 2-4.

[0066] Embodiment 4:

[0067] Please refer to Figures 5-7 , on the basis of Embodiment 1, the reinforcing mechanism 4 includes:

[0068] Reinforcing frames 4-1, the number of the reinforcing frames 4-1 is several, and they are respectively annularly distributed and fixed on the right side wall of the trolley body 1, the reinforcing frames 4-1 are in an "L" shape structure, and the reinforcing frames 4-1 abut against the installation end of the hydraulic cylinder 3;

[0069] Connecting plates 4-2, the number of the connecting plates 4-2 is several, and they respectively abut against the outer shells at the connecting ends of the movable rods of the hydraulic cylinder 3, and the connecting plates 4-2 are arranged in one-to-one correspondence with the reinforcing frames 4-1;

[0070] Connecting screws 4-3, the number of the connecting screws 4-3 is several, and they are respectively screwed through the connecting plates 4-2, the reinforcing frames 4-1 and the trolley body 1 by threads.

[0071] Embodiment 5:

[0072] Please refer to Figure 4 , on the basis of Embodiment 1, the support mechanism 5 all includes:

[0073] A support plate 5-1, and the support plate 5-1 is arranged inside the trolley body 1;

[0074] A moving screw rod 5-2, and the moving screw rod 5-2 is screwed through the side wall of the trolley body 1 by threads, and the inner end of the moving screw rod 5-2 is rotatably connected to the support plate 5-1 through a bearing;

[0075] A first limiting rod 5-3, and the first limiting rod 5-3 is fixed on the support plate 5-1, and the first limiting rod 5-3 is movably inserted into the side wall of the trolley body 1;

[0076] A second limiting rod 5-4, and the second limiting rod 5-4 is connected to the side wall of the trolley body 1 through a shaft and a bearing seat. A limiting tube 5-5 is movably sleeved on the second limiting rod 5-4, and the limiting tube 5-5 is connected to the outer side wall of the support plate 5-1 through a shaft and a bearing seat. After a fixing bolt 5-6 is screwed through the limiting tube 5-5 by threads, its inner end abuts against the second limiting rod 5-4.

[0077] When the present invention is used, it is installed on the support platform. The external pipeline of the TBM-mounted hydraulic pump station provides power for the hydraulic cylinder 3. The trolley body 1 is controlled by the hydraulic cylinder 3 to brake and move forward and backward. The pulley body 2-1 moves between the limiting plates 2-5 on the slide rail 2-4, so that the trolley body 1 moves smoothly. The reinforcement frames 4-1 are fixedly distributed in a ring shape on the right side wall of the trolley body 1, and the reinforcement frames 4-1 abut against the installation end of the hydraulic cylinder 3. The connecting screw rods 4-3 are respectively screwed through the connecting plate 4-2, the reinforcement frames 4-1 and the trolley body 1 by threads. The connecting plate 4-2 abuts against the outer shell of the connecting end of the movable rod of the hydraulic cylinder 3, so that when the hydraulic cylinder 3 drives the trolley body 1 to move, the installation end of the hydraulic cylinder 3 will not be loosened due to excessive gravity. After a hydraulic drill is installed on the trolley body 1, the moving screw rod 5-2 is rotated. Under the action of the first limiting rod 5-3, the support plate 5-1 moves to abut against the hydraulic drill, and the fixing bolt 5-6 is tightened to fix the limiting tube 5-5 and the second limiting rod 5-4, so that the support plate 5-1 abuts against the hydraulic drill, further providing a supporting force. The support position of the drill is adjusted. By researching and installing the on-board automatic telescopic support trolley body 1, a mounting and fixing platform device is provided for the hydraulic drill, and the double-shield TBM realizes the hydraulic turning machine support operation, greatly improving the support efficiency and realizing tunneling and support.

[0078] Compared with the prior art, the beneficial effects of the present invention are:

[0079] 1. The hydraulic cylinder 3 is used to control the forward and backward movement of the trolley body 1, and in cooperation with the movement of the pulley body 2-1 between the limiting plates 2-5 of the slide rail 2-4, the smooth and efficient movement of the trolley body 1 is realized, and the flexibility of adjusting the support platform is improved;

[0080] 2. It is annularly fixed to the right side wall of the trolley body 1 through the reinforcement frame 4-1 and abuts against the installation end of the hydraulic cylinder 3. The connecting screw 4-3 passes through the connecting plate 4-2, the reinforcement frame 4-1 and the trolley body 1, effectively preventing the hydraulic cylinder 3 from loosening due to excessive gravity and enhancing the stability of the system.

[0081] 3. The support plate 5-1 is used to tightly press the hydraulic drill through the moving screw 5-2 and the first limiting rod 5-3, and the fixing bolt 5-6 is used to lock the limiting pipe 5-5 and the second limiting rod 5-4, providing an additional supporting force for the hydraulic drill and ensuring the stability of the equipment during operation.

[0082] 4. The airborne automatic telescopic support trolley body 1 provides an integrated installation platform for the hydraulic drill, realizing the synchronous operation of double-shield TBM tunneling and support, and significantly improving the support efficiency.

[0083] For those skilled in the art, they can modify the technical solutions recorded in the foregoing embodiments and make equivalent replacements for some technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A TBM machine-mounted automatic retractable support pulley, comprising a pulley body (1); It is characterized in that It also contains: A pulley mechanism (2), wherein the pulley mechanism (2) is arranged at the bottom of the pulley body (1); A hydraulic cylinder (3), wherein the hydraulic cylinder (3) is fixed on the right side wall of the pulley body (1), and the hydraulic cylinder (3) is connected to an external power supply; A reinforcement mechanism (4), wherein the reinforcement mechanism (4) is arranged on the pulley body (1), and the reinforcement mechanism (4) is connected to the hydraulic cylinder (3); The supporting mechanism (5) is in multiple numbers and is respectively arranged on the left and right sides of the pulley body (1).

2. The TBM machine-mounted automatic retractable support pulley according to claim 1, characterized in that: The pulley mechanism (2) comprises: A pulley body (2-1), wherein the pulley bodies (2-1) are in plurality and are arranged in a matrix arrangement at the front, rear, left and right sides of the pulley body (1); Connecting shafts (2-2), the number of the connecting shafts (2-2) being two, and the connecting shafts (2-2) are respectively inserted and fixed to the front and rear pulley bodies (2-1), and the connecting shafts (2-2) are screwed and inserted into the pulley body (1) through bearings; The slide rails (2-4) are multiple in number and are respectively arranged at the bottom of the pulley body (2-1); the slide rails (2-4) are integrally formed with multiple limiting plates (2-5), and the limiting plates (2-5) are arranged between two adjacent pulley bodies (2-1).

3. The TBM machine-mounted automatic retractable support pulley according to claim 2, characterized in that: Two front and rear reinforcement pipes (2-3) are arranged on the connecting shaft (2-2) through a bearing rotation sleeve, and the reinforcement pipes (2-3) are arranged on the pulley body (1) through the bearing rotation sleeve.

4. The TBM machine-mounted automatic retractable support pulley according to claim 2, characterized in that: A convex strip (2-6) is integrally formed on the limiting plate (2-5), a corresponding concave groove (2-7) is provided on the connecting shaft (2-2), and the convex strip (2-6) and the concave groove (2-7) are rollingly embedded.

5. The TBM machine-mounted automatic retractable support pulley according to claim 2, characterized in that: An annular groove (2-8) is provided on the opposite side walls of the pulley body (2-1), a sliding groove (2-9) is provided on the side wall of the limiting plate (2-5), and a ball (2-10) is rollingly embedded at the intersection of the annular groove (2-8) and the sliding groove (2-9).

6. The TBM machine-mounted automatic retractable support pulley according to claim 2, characterized in that: The slide rails (2-4) are spliced ​​on the left and right sides; a connecting frame (2-11) is fixed at the connection of the left and right slide rails (2-4); the connecting frame (2-11) is in an "L"-shaped structure; the connecting frame (2-11) is arranged at the front side and the bottom of the connection of the slide rails (2-4); a pad (2-12) is fixed at the bottom of the slide rail (2-4).

7. The TBM machine-mounted automatic retractable support pulley according to claim 1, characterized in that: The reinforcement mechanism (4) comprises: A reinforcement frame (4-1), wherein the reinforcement frames (4-1) are in a plurality and are respectively distributed in a ring shape and fixed on the right side wall of the pulley body (1); the reinforcement frames (4-1) are in an "L"-shaped structure, and the reinforcement frames (4-1) are disposed against the mounting end of the hydraulic cylinder (3); Connecting plates (4-2), the number of the connecting plates (4-2) being several and respectively disposed against the outer shell of the movable rod connecting end of the hydraulic oil cylinder (3), and the connecting plates (4-2) and the reinforcing frames (4-1) being disposed in one-to-one correspondence; The connecting screw rods (4-3) are multiple in number and are respectively threadedly connected to the connecting plate (4-2), the reinforcement frame (4-1) and the pulley body (1).

8. The TBM machine-mounted automatic retractable support pulley according to claim 1, characterized in that: The supporting mechanism (5) comprises: A support plate (5-1), wherein the support plate (5-1) is arranged in the pulley body (1); A movable screw rod (5-2), wherein the movable screw rod (5-2) is threadedly connected and penetrates the side wall of the pulley body (1), and the inner end of the movable screw rod (5-2) is screwedly connected to the support plate (5-1) via a bearing; A No. 1 limiting rod (5-3), wherein the No. 1 limiting rod (5-3) is fixed on the support plate (5-1), and the No. 1 limiting rod (5-3) is movably inserted on the side wall of the pulley body (1).

9. The TBM machine-mounted automatic retractable support pulley according to claim 8, characterized in that: The second limiting rod (5-4) is connected to the side wall of the pulley body (1) through a shaft and a bearing seat; a limiting tube (5-5) is movably sleeved on the second limiting rod (5-4); the limiting tube (5-5) is connected to the outer side wall of the support plate (5-1) through the shaft and the bearing seat; after the fixing bolt (5-6) is screwed through the limiting tube (5-5) through a thread, its inner end is abutted against the second limiting rod (5-4).

Images