Self-propelled shield counter-force frame

Abstract

The invention discloses a self-propelled shield counter-force frame, and relates to the technical field of counter-force frames, an outer frame is arranged on the outer side of a vertical rod, an insertion rod is slidably connected to the outer frame, the insertion rod is inserted into an insertion opening of a stop seat, a pull rope is arranged at the input end of the insertion rod, the input end of the pull rope is arranged on a threaded seat, the threaded seat is in threaded connection with a screw, and the threaded seat is connected with a screw rod. The screw rod is arranged on the rear seat, the rear seat is arranged on the main frame, the input end of the screw rod is sleeved with a transmission belt, the other end of the transmission belt is sleeved with a screw rod belt wheel, a movable seat is arranged on the screw rod, a supporting rod is arranged at the output end of the movable seat, and the output end of the supporting rod is arranged on the auxiliary frame. The blocking seat can be driven by the first spring to reset, the blocking seat cannot block the auxiliary frame, and the auxiliary frame can be pulled to incline, so that the horizontal occupied space of the negative ring, the main frame and the auxiliary frame is changed, the vertical transportation space is increased, and the shield tunneling machine cannot be influenced by the negative ring and the whole reaction frame in the vertical transportation process.

Description

Technical Field

[0001] The invention relates to the technical field of reaction frames, in particular to a self-propelled shield reaction frame. Background Art

[0002] A shield machine is a tunnel boring machine that uses the shield method. The shield construction method is that the tunnel boring machine builds (lays) the "shield" (referring to the supporting segments) of the tunnel while excavating, which is different from the open construction method. Internationally, the broad shield machine can also be used in rock formations, but it is different from the open (non-shield method) tunnel boring machine. In my country, tunnel boring machines used in soft soil formations are usually called (narrow sense) shield machines, and those used in rock formations are called (narrow sense) TBMs. Shield machines are generally divided into hand-dug shields, extrusion shields, semi-mechanical shields (local air pressure, global air pressure), and mechanical shields (open-chest cutting shields, air pressure shields, mud-water pressure shields, earth pressure balance shields, mixed shields, and special-shaped shields according to their working principles.

[0003] Due to the small size of the shield starting shaft and space limitations, the shield must be started in parts. Traditional shield starting uses a fixed reaction frame to provide reaction support and installs a negative ring to start. The reaction frame and negative ring segments will occupy the vertical transportation space in the shaft. For confined space shafts, it will seriously affect the shield starting progress and safety, and even lead to a situation where the shield is difficult to start because the space in the starting working shaft is too small. Summary of the invention

[0004] Technical issues solved

[0005] In view of the deficiencies in the prior art, the present invention provides a self-propelled shield reaction frame to solve the problem that the reaction frame and negative ring segments occupy the vertical transportation space in the shaft, which seriously affects the starting progress and safety of the shield for confined space shafts.

[0006] Technical Solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a self-propelled shield reaction frame, comprising a main frame, a cylinder, a servo motor, a negative ring and a screw rod, the main frame is rotatably connected to a sub-frame, the sub-frame is detachably connected to the negative ring, the back side of the main frame is provided with a vertical rod, a block seat is slidably connected to the vertical rod, an outer frame is provided on the outer side of the vertical rod, a plug rod is slidably connected to the outer frame, the plug rod is plugged into the socket of the block seat, a pull rope is provided at the input end of the plug rod, the input end of the pull rope is arranged on a threaded seat, the threaded seat is threadedly connected to the screw rod, the screw rod is arranged on the rear seat, the rear seat is arranged on the main frame, the input end of the screw rod is sleeved with a transmission belt, the other end of the transmission belt is sleeved on the screw rod pulley, the screw rod is provided with a moving seat, the output end of the moving seat is provided with a support rod, and the output end of the support rod is arranged on the sub-frame.

[0008] Preferably, a vertical frame is arranged on the back side of the main frame, the vertical frame and the vertical rod are parallel to each other, the vertical frame and the vertical rod are arranged along the length direction of the main frame, and the vertical frame and the vertical rod are parallel to the main frame.

[0009] Preferably, the vertical frame is connected to an L-shaped outer frame, the insertion rod is vertically arranged on the outer frame, the insertion rod is arranged in an L-shape as a whole, one end of the insertion rod is detachably connected to a second spring, and the other end of the second spring is detachably connected to the outer frame.

[0010] Preferably, the upper ends of the vertical rod and the vertical frame are detachably connected with a fixing frame, and a first spring is sleeved on the vertical rod, and the first spring is located between the stop seat and the fixing frame.

[0011] Preferably, the screw rod is horizontally arranged on the side of the rear seat, the screw rod is rotatably connected to the side of the rear seat, the threaded seat of the screw rod is arranged in a rectangular shape as a whole, and the threaded seat overlaps the rear seat.

[0012] Preferably, the movable seat is arranged in an L-shape as a whole, the output end of the movable seat is rotatably connected to a support rod, the support rod is arranged in an L-shape as a whole, and the other end of the support rod is rotatably connected to the sub-frame.

[0013] Preferably, a pulley is detachably connected to the input end of the screw, the pulleys on the screw and the lead screw are arranged on the same side, and the pulley of the screw is located on the outer side of the rear seat.

[0014] Beneficial Effects

[0015] The present invention provides a self-propelled shield reaction frame, which has the following beneficial effects:

[0016] The self-propelled shield reaction frame is characterized in that a sub-frame is arranged on the main frame, and the sub-frame can be rotated on the main frame. When the sub-frame overlaps with the main frame, the sub-frame can be stabilized at the main frame position. When a negative ring is installed on the sub-frame, the negative ring, the main frame and the sub-frame occupy a large horizontal space. When the servo motor is started, the moving seat can move on the screw rod. When the moving seat moves, it can drive the support rod to pull the sub-frame. During the rotation of the screw rod, it will drive the plug rod to be pulled out of the socket. The blocking seat can be reset under the drive of the first spring, and the blocking seat will not be blocked at the sub-frame position. The sub-frame can be pulled and tilted, thereby changing the horizontal occupied space of the negative ring, the main frame and the sub-frame, thereby increasing the vertical transportation space. The shield machine will not be affected by the negative ring and the reaction frame as a whole during vertical transportation. After the shield machine is placed, the sub-frame is reset, and the shield machine can be connected with the negative ring to start. Through the setting, it can be achieved that the starting of the shield machine will not be affected.

[0017] The self-propelled shield reaction frame can realize transmission through the setting of a screw rod, a pulley is arranged on the screw rod, a screw rod is arranged on the outer side of the rear seat, a pulley is also arranged on the screw rod, a transmission belt can be sleeved between the pulleys, the screw rod can be driven to rotate when the screw rod rotates, the threaded seat on the screw rod can move horizontally along the screw rod, and when the threaded seat moves, the insertion rod can be pulled out of the socket of the blocking seat by a pull rope, so that the blocking seat is driven by the first spring to move up, and the blocking seat does not restrict the sub-frame, so that the sub-frame can rotate, thereby adjusting the angle of the sub-frame, and the negative ring angle on the sub-frame can be adjusted.

[0018] A self-propelled shield reaction frame,

[0019] A self-propelled shield reaction frame, BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0021] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0022] Figure 3 The overall structure of the present invention is shown in FIG. Figure 3 ;

[0023] Figure 4 It is a schematic diagram of the enlarged structure of region A in the present invention;

[0024] Figure 5 It is a schematic diagram of the enlarged structure of area B in the present invention.

[0025] In the figure:

[0026] 1. Main frame; 2. Negative ring; 3. Sub-frame; 4. Cylinder; 5. Fixed frame; 6. Servo motor; 7. Back seat; 8. First spring; 9. Vertical frame; 10. Block seat; 11. Socket; 12. Vertical rod; 13. Pull rope; 14. Screw rod; 15. Moving seat; 16. Support rod; 17. External frame; 18. Second spring; 19. Insert rod; 20. Threaded seat; 21. Screw rod; 22. Pulley; 23. Transmission belt; DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-Figure 5The present invention provides a self-propelled shield reaction frame, including a main frame 1, a cylinder 4, a servo motor 6, a negative ring 2 and a screw rod 14. The main frame 1 is rotatably connected to a sub-frame 3, and the sub-frame 3 is detachably connected to the negative ring 2. The back side of the main frame 1 is provided with a vertical rod 12, and a stopper 10 is slidably connected to the vertical rod 12. An outer frame 17 is provided outside the vertical rod 12, and an insertion rod 19 is slidably connected to the outer frame 17. The insertion rod 19 is inserted into the socket 11 of the stopper 10, and the input of the insertion rod 19 A pull rope 13 is provided at the end, the input end of the pull rope 13 is arranged on a threaded seat 20, the threaded seat 20 is threadedly connected to a screw rod 21, the screw rod 21 is arranged on a rear seat 7, the rear seat 7 is arranged on the main frame 1, the input end of the screw rod 21 is sleeved with a transmission belt 23, the other end of the transmission belt 23 is sleeved on a pulley 22 of the screw rod 14, a moving seat 15 is provided on the screw rod 14, and a support rod 16 is provided at the output end of the moving seat 15, and the output end of the support rod 16 is arranged on the sub-frame 3.

[0029] By starting the servo motor 6, the moving seat 15 can move on the screw rod 14. When moving, the moving seat 15 can drive the support rod 16 to pull the sub-frame 3. During the rotation of the screw rod 14, the plug rod 19 will be driven to pull out the socket 11. The blocking seat 10 can be reset under the drive of the first spring 8, and the blocking seat 10 will not block the position of the sub-frame 3. The sub-frame 3 can be pulled and tilted, thereby changing the horizontal occupied space of the negative ring 2, the main frame 1 and the sub-frame 3, thereby increasing the vertical transportation space. The shield machine will not be affected by the negative ring 2 and the reaction frame as a whole during vertical transportation. After the shield machine is placed, the sub-frame 3 is reset, and the shield machine can be connected to the negative ring 2 to start. Through the setting, it can be achieved that the shield start will not be affected. Transmission can be achieved through the setting of the screw rod 14. A pulley 22 is arranged on the screw rod 14. A screw rod 21 is arranged on the outer side of the rear seat 7. A pulley 22 is also arranged on the screw rod 21. A transmission belt 23 can be sleeved between the pulleys 22. When the screw rod 14 rotates, the screw rod 21 can be driven to rotate. The threaded seat 20 on the screw rod 21 can move horizontally along the screw rod 21. When the threaded seat 20 moves, the plug rod 19 can be pulled out of the socket 11 of the block seat 10 by the pull rope 13, so that the block seat 10 is driven by the first spring 8 to move up, and the block seat 10 can not restrict the sub-frame 3, so that the sub-frame 3 can rotate, thereby adjusting the angle of the sub-frame 3, and the angle of the negative ring 2 on the sub-frame 3 can be adjusted.

[0030] A vertical frame 9 is arranged on the back side of the main frame 1, and the vertical frame 9 and the vertical rod 12 are parallel to each other. The vertical frame 9 and the vertical rod 12 are arranged along the length of the main frame 1, and the vertical frame 9 and the vertical rod 12 are parallel to each other with the main frame 1. By arranging the vertical frame 9 on the main frame 1, the vertical frame 9 can be connected with the blocking seat 10, and the vertical frame 9 and the vertical frame 9 can restrict the blocking seat 10 at the same time, and the blocking seat 10 can move up and down stably without rotating, so as to stably block the sub-frame 3 when stable.

[0031] The vertical frame 9 is connected to an L-shaped outer frame 17, and the insertion rod 19 is vertically arranged on the outer frame 17. The insertion rod 19 is arranged in an L-shape as a whole. The second spring 18 is detachably connected to one end of the insertion rod 19, and the other end of the second spring 18 is detachably connected to the outer frame 17. By arranging the outer frame 17 on the vertical frame 9, the outer frame 17 can limit the insertion rod 19, and the insertion rod 19 can move on the outer frame 17, thereby moving to the position of the socket 11 of the blocking seat 10.

[0032] The upper ends of the vertical rod 12 and the vertical frame 9 are detachably connected with the fixing frame 5, and the first spring 8 is sleeved on the vertical rod 12, and the first spring 8 is located between the stopper 10 and the fixing frame 5. The stopper 10 can be driven by the setting of the first spring 8, and the first spring 8 can drive the stopper 10 to reset when the stopper 10 is not restricted by the insertion rod 19.

[0033] The screw rod 21 is horizontally arranged on the side of the rear seat 7, the screw rod 21 is rotatably connected to the side of the rear seat 7, the threaded seat 20 of the screw rod 21 is arranged in a rectangular shape as a whole, and the threaded seat 20 overlaps the rear seat 7. The movement of the threaded seat 20 can be realized by the arrangement of the screw rod 21, and the threaded seat 20 can move on the screw rod 21, and the threaded seat 20 will not rotate under the limit of the rear seat 7.

[0034] The movable seat 15 is arranged in an L-shape as a whole, and the output end of the movable seat 15 is rotatably connected with a support rod 16, and the support rod 16 is arranged in an L-shape as a whole, and the other end of the support rod 16 is rotatably connected to the sub-frame 3. The sub-frame 3 can be supported by the setting of the support rod 16, and the sub-frame 3 can also be pulled, so that the sub-frame 3 can be rotated.

[0035] The input end of the screw 21 is detachably connected with a pulley 22, which is arranged on the same side as the pulley 22 on the screw 14, and the pulley 22 of the screw 21 is located on the outside of the rear seat 7. The pulley 22 can be connected with the transmission belt 23, so that the screw 14 and the screw 21 can move simultaneously.

[0036] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0037] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of units is only for some logical functions, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0038] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

[0039] The above description is only a specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A self-propelled shield reaction frame, comprising a main frame (1), a cylinder (4), a servo motor (6), a negative ring (2) and a screw rod (14), characterized in that: The main frame (1) is rotatably connected to a sub-frame (3), and the sub-frame (3) is detachably connected to a negative ring (2). A vertical rod (12) is provided on the back side of the main frame (1), and a stopper (10) is slidably connected to the vertical rod (12). An outer frame (17) is provided on the outer side of the vertical rod (12), and an insertion rod (19) is slidably connected to the outer frame (17). The insertion rod (19) is inserted into a socket (11) of the stopper (10), and a pull rope (13) is provided at the input end of the insertion rod (19). The input end of the pull rope (13) is arranged on a screw thread. The threaded seat (20) is threadedly connected to a screw rod (21), the screw rod (21) is arranged on a rear seat (7), the rear seat (7) is arranged on a main frame (1), the input end of the screw rod (21) is sleeved with a transmission belt (23), the other end of the transmission belt (23) is sleeved on a pulley (22) of a screw rod (14), the screw rod (14) is provided with a movable seat (15), the output end of the movable seat (15) is provided with a support rod (16), and the output end of the support rod (16) is arranged on the auxiliary frame (3).

2. A self-propelled shield reaction frame according to claim 1, characterized in that: A vertical frame (9) is arranged on the back side of the main frame (1); the vertical frame (9) and the vertical rod (12) are parallel to each other; the vertical frame (9) and the vertical rod (12) are arranged along the length of the main frame (1); the vertical frame (9) and the vertical rod (12) are parallel to the main frame (1).

3. The self-propelled shield reaction frame according to claim 1, characterized in that: The vertical frame (9) is connected to an L-shaped outer frame (17), the insertion rod (19) is vertically arranged on the outer frame (17), the insertion rod (19) is arranged in an L-shape as a whole, one end of the insertion rod (19) is detachably connected to a second spring (18), and the other end of the second spring (18) is detachably connected to the outer frame (17).

4. The self-propelled shield reaction frame according to claim 1, characterized in that: The upper ends of the vertical rod (12) and the vertical frame (9) are detachably connected to a fixing frame (5), and a first spring (8) is sleeved on the vertical rod (12), and the first spring (8) is located between the stop seat (10) and the fixing frame (5).

5. The self-propelled shield reaction frame according to claim 1, characterized in that: The screw rod (21) is horizontally arranged on the side of the rear seat (7), the screw rod (21) is rotatably connected to the side of the rear seat (7), the threaded seat (20) of the screw rod (21) is arranged in a rectangular shape as a whole, and the threaded seat (20) overlaps the rear seat (7).

6. The self-propelled shield reaction frame according to claim 1, characterized in that: The movable seat (15) is arranged in an L-shape as a whole, and the output end of the movable seat (15) is rotatably connected to a support rod (16), the support rod (16) is arranged in an L-shape as a whole, and the other end of the support rod (16) is rotatably connected to the sub-frame (3).

7. The self-propelled shield reaction frame according to claim 1, characterized in that: A pulley (22) is detachably connected to the input end of the screw rod (21), the screw rod (21) and the pulley (22) on the lead screw (14) are arranged on the same side, and the pulley (22) of the screw rod (21) is located on the outside of the rear seat (7).

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