Self-propelled chiseling machine for low side wall of second lining of tunnel

Abstract

The invention discloses a tunnel second lining short side wall self-propelled scabbler which comprises a rail horizontally arranged at the upper end of a tunnel second lining short side wall, a scabbler base transversely moving along the rail, a scabbler arm connected to the scabbler base and a scabbler head longitudinally moving along the scabbler arm, the scabbler arm is longitudinally arranged and hinged to the scabbler base, and the scabbler head is hinged to the scabbler base. And a shock absorber is used as a support, so that movement constraint between the scabbling arm and the scabbling machine base is realized, and buffering and shock absorption are provided in the scabbling process. The tunnel scabbler can be suitable for tunnels with different section radians, the scabbler head is always tightly attached to the wall surface through the arrangement of the shock absorber, and curved surface scabbling is achieved; automatic chiseling can be realized after the operation track of the chiseling machine is mounted; the servo motor drives the chiseling machine head to move up and down and back and forth to realize one-time forming of curved surface chiseling; the scabbling depth can be realized by controlling the running speed; meanwhile, the bush hammer is provided with a spraying system, so that the dust falling effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, in particular to a self-propelled chiseling machine for a tunnel secondary lining low side wall. Background Art

[0002] At present, with the standardization and modernization of tunnel infrastructure construction, a series of new tunnel construction equipment has been promoted and used in order to reduce labor and speed up the construction progress. As a link in the middle and late stages of tunnel construction, the tunnel ditch cable trough is the "face" of tunnel construction and affects the image of the entire tunnel. Its construction technology and construction methods have always been key research projects. In order to increase the bonding strength of the post-cast concrete and the low side wall of the tunnel secondary lining during the pouring of the ditch cable trough and the tunnel secondary lining, the low side wall of the tunnel secondary lining must be roughened.

[0003] There are various types of automatic chiseling machines, but they are all for chiseling straight tunnel walls. However, since the lower part of the tunnel secondary lining low side wall has a curved surface, the existing automatic chiseling machines cannot handle the chiseling of the curved surface. Currently, there is still no automatic chiseling machine suitable for the tunnel secondary lining low side wall. At present, the chiseling process of the tunnel secondary lining low side wall is mainly done by manual handheld chiseling machines. Manual chiseling is inefficient, dusty and harsh, and the chiseling area and quality are uncontrollable. Summary of the invention

[0004] In order to solve the above technical problems, the present invention designs a self-propelled chiseling machine for the low side wall of the secondary lining of a tunnel.

[0005] The present invention adopts the following technical solution: A self-propelled roughing machine for a tunnel secondary lining low side wall comprises a track horizontally arranged at the upper end of the tunnel secondary lining low side wall, a roughing machine base moving laterally along the track, a roughing arm connected to the roughing machine base, and a roughing machine head moving longitudinally along the roughing arm; A servo motor is installed on the hair cutting machine base, and a roller group and a transmission wheel are built into the hair cutting machine base. The roller group and the transmission wheel are nested on the track, and the transmission wheel is driven by the servo motor to realize the hair cutting machine base to move horizontally along the track by itself; The chiseling arm is arranged longitudinally, hinged with the chiseling machine base, and supported by a shock absorber to realize motion constraint between the chiseling arm and the chiseling machine base and provide buffering and shock absorption for the chiseling process; A servo motor 2 is installed on the haircutting arm, and a transmission mechanism is arranged inside the haircutting arm. The transmission mechanism is controlled by the servo motor 2 to drive the haircutting machine head to move longitudinally along the haircutting arm to perform haircutting.

[0006] Preferably, the hair cutting machine also includes a remote control component, which controls servo motor 1, servo motor 2 and the hair cutting machine head to achieve control of the start and stop, manual / automatic switching, movement speed and movement direction of the hair cutting machine.

[0007] Preferably, a spray system is installed on the haircutting head, and the spray system is turned on when the haircutting head is in operation.

[0008] Preferably, a fixing seat is installed on the chiseling machine seat, a chiseling arm is hinged on the fixing seat via a pin shaft, and a shock absorber is installed between the fixing seat and the chiseling arm.

[0009] Preferably, the chiseling arm has a chain transmission mechanism inside, including a chain, an active driving wheel and a driven driving wheel. The active driving wheel and the driven driving wheel are installed at both ends of the chiseling arm. A chain is transmitted between the active driving wheel and the driven driving wheel. Servo motor 2 controls the rotation of the active driving wheel, and the chiseling machine head is fixedly connected to the chain.

[0010] Preferably, a tensioning wheel is installed on the chiseling arm, and the tensioning wheel is connected to a chain.

[0011] Preferably, the damping of the shock absorber is adjustable to change the pressure applied to the chiseling arm.

[0012] Preferably, the roller group includes an upper guide wheel and a lower guide wheel, and the upper guide wheel and the lower guide wheel are nested on the track.

[0013] Preferably, a connecting plate is installed on the haircutting machine head, a connecting block is fixedly connected to the connecting plate, the connecting block is fixedly connected to the chain, a spray system is installed on both sides of the connecting plate, and a roller is attached to the haircutting machine head, the roller is embedded in the haircutting arm, and rolls along the inner side of the haircutting arm.

[0014] Preferably, fixing collars are evenly installed along a straight line on the rear side of the track, and the fixing collars are used to be installed on the steel bars at the upper end of the low side wall of the second lining of the tunnel.

[0015] The beneficial effects of the present invention are as follows: the present invention is applicable to tunnels with different cross-sectional curvatures; through the setting of the shock absorber, the roughening machine head is always in close contact with the wall surface to achieve curved surface roughening; the roughening can be performed automatically after the installation of the running track of the roughening machine is completed; the servo motor drives the roughening machine head to move up and down and forward and backward to achieve one-time roughening of the curved surface; the depth of the roughening can be achieved by controlling the running speed; and at the same time, the roughening machine is provided with a spray system to achieve the effect of dust reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view of the present invention; Figure 2 is a rear view of the present invention; Figure 3 It is a left side view of the present invention; Figure 4 is a top view of the present invention; Figure 5 It is a rear view of the chiseling arm of the present invention; Figure 6 It is a schematic diagram of the internal structure of the chiseling arm in the present invention; Figure 7 It is a stereoscopic diagram of the chiseling machine base in the present invention; Figure 8 It is a left side view of the chiseling machine base in the present invention; Fig. 9 It is a stereoscopic diagram of the hair cutting machine head in the present invention; Fig.10 It is a front view of the hair cutting machine head in the present invention; Fig.11 It is a right side view of the hair cutting machine head of the present invention; In the figure: 1. track, 2. chiseling machine base, 3. servo motor 1, 4. chiseling arm, 5. chiseling machine head, 6. servo motor 2, 7. shock absorber, 8. fixing ring, 9. active driving wheel, 10. driven driving wheel, 11. chain, 12. tensioning wheel, 13. roller, 14. synchronous wheel, 15. synchronous belt, 16. upper guide wheel, 17. lower guide wheel, 18. active transmission wheel, 19. fixing seat, 20. pin shaft, 21. connecting plate, 22. connecting block, 23. spray system. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Example: Figure 1-Figure 4 As shown, a self-propelled chiseling machine for the low side wall of the second lining of a tunnel comprises a track 1, a chiseling machine base 2, a servo motor 1 3, a chiseling arm 4, a chiseling machine head 5, a servo motor 2 6 and a shock absorber 7.

[0018] Fixed collars 8 are evenly installed along a straight line on the rear side of the track 1. The fixed collars 8 are used to be installed on the steel bars at the upper end of the low side wall of the second lining of the tunnel. The length of the track 1 can be customized and can be spliced ​​on site. The length of the track 1 can be adjusted according to the length of the working area. The track 1 in the roughened area can be disassembled and installed in the area to be roughened.

[0019] like Figure 5-Figure 6 As shown, a servo motor 26 is installed on the chiseling arm 4, and a chain transmission mechanism is arranged inside the chiseling arm 4, including a chain 11, an active driving wheel 9 and a driven driving wheel 10. The active driving wheel 9 and the driven driving wheel 10 are installed at both ends of the chiseling arm 4, and a chain 11 is transmitted between the active driving wheel 9 and the driven driving wheel 10. The servo motor 26 controls the rotation of the active driving wheel 9, and the chiseling head 5 is fixedly connected to the chain 11. The servo motor 26 controls the chain transmission mechanism to drive the chiseling head 5 to move longitudinally along the chiseling arm 4 for chiseling. A tensioning wheel 12 is installed on the chiseling arm 4, and the tensioning wheel 12 is connected to the chain 11 to ensure the tension of the chain 11.

[0020] like Figure 7-Figure 8 As shown, a servo motor 3 is installed on the haircutting machine base 2, and a roller group and a transmission wheel are built into the haircutting machine base 2. The roller group and the transmission wheel are nested on the track 1. The servo motor 3 drives the transmission wheel to realize the haircutting machine base 2 to move horizontally along the track 1. The roller group includes an upper guide wheel 16 and a lower guide wheel 17. The upper guide wheel 16 and the lower guide wheel 17 are nested on the track 1. The transmission wheel includes an active transmission wheel 18 and a synchronous wheel 14. The active transmission wheel 18 and the synchronous wheel 14 are driven by the servo motor 3 through a synchronous belt 15 to realize the lateral movement of the haircutting machine base 2. A fixed seat 19 is installed on the haircutting machine base 2. The haircutting arm 4 is hinged on the fixed seat 19 through a pin shaft 20, and a shock absorber 7 is used as a support to realize the motion constraint between the haircutting arm 4 and the haircutting machine base 2, and provide a buffering and shock absorbing effect for the haircutting process. At the same time, the damping of the shock absorber 7 can be adjusted to change the pressure applied to the haircutting arm 4. By setting the shock absorber 7, the roughening machine head 5 is always in close contact with the wall surface, so that the curved surface roughening can be achieved, which is suitable for tunnels with different cross-sectional curvatures.

[0021] like Figure 9-11 As shown, a connecting plate 21 is installed on the haircutting machine head 5, a connecting block 22 is fixedly connected to the connecting plate 21, the connecting block 22 is fixedly connected to the chain 11, and a spray system 23 is installed on both sides of the connecting plate 21. The spray system 23 is turned on when the haircutting machine head 5 is running. When the haircutting action starts, the spraying is automatically turned on to ensure that the dust is minimized during the operation. The haircutting machine head 5 is equipped with a roller 13, which is embedded in the haircutting arm 4 and rolls along the inner side of the haircutting arm 4.

[0022] The hair cutting machine also includes a remote control component, which controls the servo motor 1 3, the servo motor 2 6 and the hair cutting machine head 5 to control the start and stop, manual / automatic switching, movement speed and movement direction of the hair cutting machine.

[0023] The working process of the self-propelled roughening machine for the second lining low side wall of the tunnel is as follows: first install the track 1 on the steel bar at the upper end of the second lining low side wall of the tunnel that needs to be roughened, set the running speed through the remote control component, select the manual or automatic mode according to the needs, and select the automatic mode under normal operation. After starting the roughening machine, the servo motor 13 drives the active transmission wheel 18 to realize the roughening machine base 2 to move horizontally to the right along the track 1 to the specified position, and at the same time, the servo motor 13 drives the roughening machine head 5 to move downward along the roughening arm 4 for roughening through the chain 11. Through the setting of the shock absorber 7, the roughening machine head 5 is always close to the wall surface during roughening, realizing curved surface roughening, which can be applied to tunnels with different cross-sectional curvatures. After going down to the lowest end, the roughening machine base 2 continues to move horizontally to the right along the track 1 to the specified position, and the roughening machine head 5 moves upward along the roughening arm 4 for roughening until it reaches the uppermost end, and this reciprocating process completes the roughening operation of the entire tunnel.

[0024] When the chiseling operation needs to avoid the position, the manual mode can be used to manually select the direction for chiseling according to the remote control component.

[0025] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A self-propelled chiseling machine for the low side wall of the secondary lining of a tunnel, characterized in that: It comprises a track (1) arranged horizontally on the upper end of the low side wall of the tunnel secondary lining, a chiseling machine base (2) moving laterally along the track (1), a chiseling arm (4) connected to the chiseling machine base (2), and a chiseling machine head (5) moving longitudinally along the chiseling arm (4); A servo motor 1 (3) is installed on the hair cutting machine base (2). The hair cutting machine base (2) has a roller group and a transmission wheel built in. The roller group and the transmission wheel are nested on the track (1). The servo motor 1 (3) drives the transmission wheel to realize the hair cutting machine base (2) to move horizontally along the track (1) by itself. The chiseling arm (4) is arranged longitudinally, is hinged to the chiseling machine base (2), and is supported by a shock absorber (7) to achieve motion constraint between the chiseling arm (4) and the chiseling machine base (2), and to provide buffering and shock absorption for the chiseling process; A servo motor 2 (6) is mounted on the haircutting arm (4), and a transmission mechanism is arranged inside the haircutting arm (4). The servo motor 2 (6) controls the transmission mechanism to drive the haircutting machine head (5) to move longitudinally along the haircutting arm (4) to perform haircutting.

2. A self-propelled chiseling machine for the secondary lining low side wall of a tunnel according to claim 1, characterized in that: The hair cutting machine also includes a remote control component, which controls servo motor 1 (3), servo motor 2 (6) and the hair cutting machine head (5) to achieve control of the start and stop, manual / automatic switching, movement speed and movement direction of the hair cutting machine.

3. A self-propelled chiseling machine for the secondary lining low side wall of a tunnel according to claim 1, characterized in that: The chiseling machine head (5) is provided with a spray system (23), and the spray system (23) is turned on when the chiseling machine head (5) is in operation.

4. A self-propelled chiseling machine for the secondary lining low side wall of a tunnel according to claim 1, characterized in that: A fixing seat (19) is installed on the chiseling machine base (2), a chiseling arm (4) is hingedly connected to the fixing seat (19) via a pin shaft (20), and a shock absorber (7) is installed between the fixing seat (19) and the chiseling arm (4).

5. The self-propelled chiseling machine for the secondary lining low side wall of a tunnel according to claim 1 is characterized in that: The chiseling arm (4) has a chain transmission mechanism inside, comprising a chain (11), an active driving wheel (9) and a driven driving wheel (10). The active driving wheel (9) and the driven driving wheel (10) are mounted at two ends of the chiseling arm (4). A chain (11) is transmitted between the active driving wheel (9) and the driven driving wheel (10). A servo motor 2 (6) controls the active driving wheel (9) to rotate, and the chiseling machine head (5) is fixedly connected to the chain (11).

6. A self-propelled chiseling machine for the secondary lining low side wall of a tunnel according to claim 5, characterized in that: A tension wheel (12) is mounted on the chiseling arm (4), and the tension wheel (12) is connected to the chain (11).

7. The self-propelled chiseling machine for the secondary lining low side wall of a tunnel according to claim 1 is characterized in that: The damping of the shock absorber (7) is adjustable, so as to change the pressure applied to the chiseling arm (4).

8. The self-propelled chiseling machine for the secondary lining low side wall of a tunnel according to claim 1 is characterized in that: The roller group comprises an upper guide wheel (16) and a lower guide wheel (17), and the upper guide wheel (16) and the lower guide wheel (17) are nested on the track (1).

9. The self-propelled chiseling machine for the secondary lining low side wall of a tunnel according to claim 3 is characterized in that: The chiseling machine head (5) is provided with a connecting plate (21), a connecting block (22) is fixedly connected to the connecting plate (21), the connecting block (22) is fixedly connected to the chain (11), a spray system (23) is installed on both sides of the connecting plate (21), and a roller (13) is attached to the chiseling machine head (5), the roller (13) is embedded in the chiseling arm (4), and rolls along the inner side of the chiseling arm (4).

10. The self-propelled chiseling machine for the secondary lining low side wall of a tunnel according to claim 1, characterized in that: The rear side of the track (1) is evenly and straightly installed with fixing collars (8), and the fixing collars (8) are used to be installed on the steel bars at the upper end of the low side wall of the second lining of the tunnel.

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