Lining trolley for highway tunnel construction

Abstract

The invention relates to the field of tunnel lining equipment, in particular to a lining trolley for highway tunnel construction. The device comprises a vehicle body, an arched mold and a cleaning and demolding assembly. The vehicle body moves along the track to enter and exit the highway tunnel; the arched mold is arranged on the vehicle body in a semi-surrounding manner; the cleaning and demolding assembly is arranged in the length direction of the arched mold and arranged on the vehicle body in a liftable mode, and the two ends of the cleaning and demolding assembly are each provided with a multi-section type cleaning and demolding piece. By arranging the cleaning and demolding assembly penetrating through the arched mold, the multi-section type cleaning and demolding piece works at the two ends and inside and outside of the arched mold, the cleaning and demolding assembly can be used for scraping cleaning, auxiliary pouring and auxiliary demolding, and besides, the cleaning and demolding assembly can also blow out air to blow waste residues in the scraping cleaning process; and air supply drying is conducted on the concrete after pouring, forming and demolding are accelerated, and finally concrete lining pouring is efficiently and conveniently conducted on the highway tunnel.

Description

Technical Field

[0001] The invention relates to the field of tunnel lining equipment, in particular to a lining trolley for highway tunnel construction. Background Art

[0002] In highway tunnel construction, the lining trolley is a large-scale special equipment used for pouring the secondary lining (i.e. permanent support structure) of the tunnel. Its core functions are as follows: Formwork support and forming: Provide a rigid formwork system to ensure that the tunnel cross-section shape (such as round, horseshoe, etc.) required by the design is maintained during concrete pouring to avoid deformation.

[0003] Mechanized construction: Replaces traditional manual formwork to achieve mechanized and streamlined lining operations, greatly improving construction efficiency (especially suitable for long tunnels).

[0004] Ensure lining quality: through high-precision templates and hydraulic systems, the thickness, flatness and density of the lining are controlled to reduce defects such as honeycombs and pockmarks.

[0005] Before pouring concrete, pretreatment is required, mainly to remove concrete residues and other debris attached to the arch mold. Workers need to climb up the arch mold to polish each area, which is time-consuming and laborious. The Chinese patent type with authorization announcement number CN220815670U involves a lining trolley for highway tunnel construction, including a tunnel template, a support assembly and a cleaning assembly; the support assembly is accommodated in the tunnel template, and when the highway tunnel is lined, the end of the support assembly is used to abut against the inner wall of the tunnel template to support the tunnel template; the cleaning assembly includes a guide mechanism and a cleaning mechanism, the guide mechanism is accommodated in the tunnel template, the guide mechanism is connected to the inner top wall of the tunnel template through a vertical plate, one end of the cleaning mechanism is inserted into the tunnel template and is slidably connected to the guide mechanism, and the other end of the cleaning mechanism extends to the outside of the tunnel template along the length direction of the guide mechanism.

[0006] The lining trolley for the above-mentioned highway tunnel construction is equipped with a cleaning structure for the arch mold. The structure has a fixed shape and a single function. When the scraping operation is actually performed, the scraped dust and particles are easy to fly and adhere to the arch mold, causing secondary pollution, thereby affecting the cleaning effect. In addition, demolding treatment is required after pouring to avoid partial demolding of the masonry layer when it is separated from the template. In the prior art, a vibrator is generally set on the arch mold for multi-point vibration-assisted demolding. The auxiliary demolding method is single and the vibration demolding effect is limited. Summary of the invention

[0007] In view of the problems existing in the background technology, a lining trolley for highway tunnel construction is proposed. By setting a cleaning and demoulding component that penetrates the arch mold, its multi-stage cleaning and demoulding parts operate at both ends and inside and outside the arch mold. In addition to being used for scraping cleaning, auxiliary pouring and auxiliary demoulding, the cleaning and demoulding component can also blow away waste slag during scraping cleaning, supply air to dry the concrete after pouring, accelerate molding and demoulding, and finally realize efficient and convenient concrete lining pouring for highway tunnels.

[0008] The present invention provides a lining trolley for highway tunnel construction, comprising a vehicle body, an arched mold and a cleaning demoulding assembly. The vehicle body moves along a track to enter and exit the highway tunnel; the arched mold is semi-enclosed and arranged on the vehicle body; the cleaning demoulding assembly is arranged along the length direction of the arched mold and can be lifted and lowered on the vehicle body, and both ends of the cleaning demoulding assembly are provided with multi-stage cleaning demoulding parts.

[0009] The multi-section cleaning demoulding parts move on the inside and outside of the arched mold by lifting. The multi-section cleaning demoulding parts move on the outer wall of the arched mold, on the one hand, to scrape and clean the debris attached to the arched mold, and on the other hand, to assist in pouring concrete from both sides of the pouring port. The multi-section cleaning demoulding parts rotate in sections on the inner wall of the arched mold, on the one hand, to knock on the inner wall of the arched mold to assist in demoulding, and on the other hand, to reduce the volume for storage.

[0010] Preferably, the vehicle body includes a support frame connected to the arched mold; a movable column cooperating with the track is arranged at the bottom of the support frame, and a liftable mounting frame is arranged at the upper end; and the cleaning and demoulding assembly is arranged on the mounting frame.

[0011] Preferably, a mounting groove is provided at the upper end of the support frame; a reset spring and a lifting drive member are provided at the bottom of the mounting groove; the support frame is driven by the lifting drive member, and the bottom end moves up and down in the mounting groove while being connected to the reset spring, and an auxiliary member for supporting or knocking is provided at the top of the support frame.

[0012] Preferably, the support frame is configured as a hollow semi-cylindrical structure with open ends, with the horizontal section facing downward, extending into the mounting groove, connected to the reset spring and the lifting drive member, and the arc section facing upward, connected to the auxiliary member; the translation drive member of the cleaning and demolding assembly is arranged in the semi-cylindrical cavity of the support frame along the length direction of the arched mold, and the two groups of cleaning and demolding members are respectively connected to the driving ends of the translation drive member and extend from the front and rear open sides.

[0013] Preferably, a connecting seat is provided on the driving end of the translation driving member; the connecting seat is connected to the cleaning demoulding member via a bending rod.

[0014] Preferably, the cleaning demoulding component includes a fixed frame located in the middle of the raised section of the arched mold, a rotating frame 1 rotatably connected to both sides of the fixed frame, and a rotating frame 2 rotatably connected to the rotating frame 1; the bending rod is connected between the connecting seat and the fixed frame.

[0015] Preferably, a vibrator 1 is provided on the rotating frame 1 and the rotating frame 2; and a vibrator 2 is provided on the arched mold.

[0016] Preferably, an air outlet valve is provided on the fixing frame; the connecting seat is hollow, with an air inlet cavity built in, and an air inlet fan connected to the air inlet cavity is provided outside; a filter is provided in the air inlet cavity; the bending rod is hollow, connecting the air inlet cavity and the air outlet valve.

[0017] Preferably, multiple groups of auxiliary parts are arranged on the top of the hollow semi-columnar structure of the support frame, and each group includes a telescopic support cylinder and a support striking head located on the telescopic end of the telescopic support cylinder; the support striking head is not connected to the arch mold.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects: a hollow semi-column structure that can be raised and lowered is arranged on the vehicle body, and the arch mold is supported from both sides and the top at the same time, so that the device has good pressure resistance and stability, and the structure is compact and the volume is small. A cleaning demoulding assembly is arranged to penetrate the arch mold, and its multi-stage cleaning demoulding parts operate at both ends and inside and outside of the arch mold. When cleaning, the fixed frame, the rotating frame one and the rotating frame two form an arc structure that matches the curvature of the arch mold, and cooperate with the connection seat to translate, and the arc structure scrapes and cleans the attachments on the surface of the arch mold over a large area. When pouring, the two groups of arc structures are located on both sides of the pouring port in the middle, limiting the range of pouring. With the progress of pouring, the two groups of arc structures gradually move outward, and pour from the middle to both sides layer by layer until the pouring of the entire tunnel is completed. When demoulding, the rotating frame one and the rotating frame two rotate inward, cooperate with the connection seat to descend, and the fixed frame returns to the inside of the arch mold. The bent rotating frame 1 and rotating frame 2 rotate like a pendulum on both sides of the fixed frame, knocking the inner wall of the arch mold to assist demoulding. In other words, the cleaning demoulding component can be used for scraping and cleaning, auxiliary pouring and auxiliary demoulding. In addition, the outside air is introduced into the air inlet chamber through the air inlet fan, and the air is exhausted through the air outlet valve. On the one hand, the cleaning demoulding component can blow away the waste residue during scraping and cleaning to ensure that the arch mold is thoroughly cleaned. On the other hand, the cleaning demoulding component can supply air to the concrete after pouring to accelerate its drying and molding. In addition to the cleaning demoulding component, there are also auxiliary parts located on the top of the arch mold and vibrators 1 and 2 that have the function of assisting demoulding. Through the coordination and linkage of the above-mentioned structures, efficient and convenient concrete lining pouring of highway tunnels can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Front view of a lining trolley for highway tunnel construction; Figure 2 Side view of a lining trolley for highway tunnel construction; Figure 3 A disassembled view of a lining trolley for highway tunnel construction; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 A cross-sectional view of a lining trolley used for highway tunnel construction; Figure 6 It is a schematic diagram of the structure of the car body and the cleaning and demoulding components; Figure 7 It is a schematic diagram of the structure of the cleaning demoulding component; Figure 8 for Figure 7 Enlarged view of point B in the middle; Fig. 9 for Figure 5 Enlarged view of center C.

[0020] : 1. arched mold; 101. pouring port; 2. car body; 201. mounting frame; 202. support frame; 203. lifting drive member; 204. mounting groove; 205. reset spring; 206. hydraulic support rod; 207. auxiliary member; 20701. supporting knocking head; 20702. telescopic supporting cylinder; 208. moving column; 3. track; 4. cleaning demoulding assembly; 5. vibrator 2; 401. cleaning demoulding member; 40101. fixed frame; 40102. rotating frame 1; 40103. rotating frame 2; 40104. vibrator 1; 402. connecting seat; 403. translation drive member; 404. air inlet; 405. bending rod; 406. filter. DETAILED DESCRIPTION

[0021] The present invention provides a lining trolley for highway tunnel construction, such as Figure 1-Figure 2 As shown, the lining trolley for highway tunnel construction includes a car body 2, an arched mold 1, and a cleaning demoulding assembly 4. The car body 2 moves along the track 3 to enter and exit the highway tunnel; the arched mold 1 is semi-enclosed and arranged on the car body 2; the cleaning demoulding assembly 4 is arranged along the length direction of the arched mold 1, and is arranged on the car body 2 in a liftable manner, and both ends of the cleaning demoulding assembly 4 are provided with multi-segment cleaning demoulding parts 401; the multi-segment cleaning demoulding parts 401 move inside and outside the arched mold 1 by lifting, and the multi-segment cleaning demoulding parts 401 move on the outer wall of the arched mold 1, on the one hand, scrape and clean the debris attached to the arched mold 1, and on the other hand, assist in concrete pouring from both sides of the pouring port 101, and the multi-segment cleaning demoulding parts 401 rotate in sections on the inner wall of the arched mold 1, on the one hand, knock on the inner wall of the arched mold 1 to assist in demoulding, and on the other hand, reduce the volume for storage.

[0022] like Figure 3As shown, the vehicle body 2 includes a support frame 202 connected to the arched mold 1; a movable column 208 cooperating with the track 3 is arranged at the bottom of the support frame 202, and a liftable mounting frame 201 is arranged at the upper end; and a cleaning demoulding assembly 4 is arranged on the mounting frame 201.

[0023] In a further embodiment, a row of hydraulic support rods 206 are arranged at intervals on both sides of the support frame 202 ; one end of the hydraulic support rod 206 is fixedly connected to the arch mold 1 .

[0024] In a further embodiment, the movable columns 208 are respectively arranged at the four top corners of the bottom of the support frame 202, and the bottom is provided with wheels, which move along the track 3 laid in advance through the electric control wheels, and drive the arch mold 1 to move synchronously.

[0025] like Figure 4 As shown, a mounting groove 204 is provided at the upper end of the support frame 202; a reset spring 205 and a lifting drive member 203 are provided at the bottom of the mounting groove 204; the support frame 202 is driven by the lifting drive member 203, and the bottom end moves up and down in the mounting groove 204, while being connected to the reset spring 205, and an auxiliary member 207 for supporting or knocking is provided at the top of the support frame 202.

[0026] In a further embodiment, the lifting drive member 203 is a lifting cylinder, which drives the support frame 202 to slide in the installation groove 204 along the vertical direction; the return spring 205 buffers the lifting of the support frame 202.

[0027] The support frame 202 is configured as a hollow semi-columnar structure with open ends, with the horizontal section facing downward and extending into the installation groove 204, connected to the reset spring 205 and the lifting drive member 203, and the arc section facing upward and connected to the auxiliary member 207; the translation drive member 403 of the cleaning and demolding assembly 4 is arranged in the semi-columnar cavity of the support frame 202 along the length direction of the arch mold 1, and the two groups of cleaning and demolding parts 401 are respectively connected to the driving ends of the translation drive member 403, and then extend from the front and rear open sides.

[0028] In a further embodiment, the support frame 202 is configured as a hollow semi-columnar structure, which can improve the supporting performance of the vehicle body 2 while reducing the volume and weight, and can also provide storage and protection for the translation drive component 403; the translation drive component 403 is configured as a double-headed bidirectional cylinder arranged in the semi-columnar cavity along the length direction of the hollow semi-columnar structure; notches are set in front and behind the installation groove 204, and when the support frame 202 descends, the translation drive component 403 descends synchronously at the notch position.

[0029] like Figure 5-Figure 8As shown, a connecting seat 402 is provided on the driving end of the translation driving member 403; the connecting seat 402 is connected to the cleaning demolding member 401 through a bending rod 405. The connecting seat 402 is driven to move horizontally by the translation driving member 403, and is driven to move up and down by the lifting driving member 203, thereby driving the cleaning demolding member 401 to move up and down and translate to meet the needs of cleaning and storage.

[0030] The cleaning demoulding part 401 includes a fixed frame 40101 located in the middle of the raised section of the arched mold 1, a rotating frame 1 40102 rotatably connected to both sides of the fixed frame 40101, and a rotating frame 2 40103 rotatably connected to the rotating frame 1 40102; a bending rod 405 is connected between the connecting seat 402 and the fixed frame 40101.

[0031] In a further embodiment, the bending rod 405 is configured to be hook-shaped, the short hook section is connected to the connecting seat 402 , and the long rod section is connected to the fixing frame 40101 .

[0032] In a further embodiment, the fixed frame 40101, the rotating frame 1 40102 and the rotating frame 2 40103 are all arc-shaped structures, and the rotating frame 1 40102 and the rotating frame 2 40103 are respectively driven to rotate by corresponding motors.

[0033] During cleaning, the fixed frame 40101, the rotating frame 1 40102 and the rotating frame 2 40103 form an arc structure that matches the curvature of the arched mold 1. The arc structure cooperates with the translation of the connecting seat 402 to scrape and clean a large area of ​​attachments on the surface of the arched mold 1.

[0034] During pouring, the two sets of arc structures are located on both sides of the most central pouring port 101 to limit the pouring range. As the pouring progresses, the two sets of arc structures gradually move outwards, pouring layer by layer from the middle to both sides until the pouring of the entire tunnel is completed.

[0035] When demoulding, the rotating frame 1 40102 and the rotating frame 2 40103 rotate inward, cooperate with the connection seat 402 to descend, and the fixed frame 40101 returns to the inside of the arched mold 1. The bent rotating frame 1 40102 and the rotating frame 2 40103 rotate on both sides of the fixed frame 40101, knocking the inner wall of the arched mold 1 to assist demoulding.

[0036] In a further embodiment, a vibrator 1 40104 is provided on the rotating frame 1 40102 and the rotating frame 2 40103; a vibrator 2 5 is provided on the arch mold 1; by providing the vibrator 1 40104 and the vibrator 2 5, the exhaust and compaction of the concrete during pouring are accelerated.

[0037] In a further embodiment, an air outlet valve is provided on the fixing frame 40101; the connecting seat 402 is hollow, with an air inlet cavity built in, and an air inlet fan 404 connected to the air inlet cavity is provided outside; a filter screen 406 is provided in the air inlet cavity; the bending rod 405 is hollow, connecting the air inlet cavity and the air outlet valve; the external air is introduced into the air inlet cavity through the air inlet fan 404, and the air outlet valve exhausts the air. On the one hand, when scraping and cleaning, the exhaust air can be used to purge the waste residue to ensure that the arch mold 1 is thoroughly cleaned. On the other hand, air can be supplied to the concrete after pouring to accelerate its drying and forming.

[0038] like Fig. 9 As shown, multiple groups of auxiliary parts 207 are arranged on the top of the hollow semi-columnar structure of the support frame 202, each group includes a telescopic support cylinder 20702 and a support knocking head 20701 located on the telescopic end of the telescopic support cylinder 20702; the support knocking head 20701 is not connected to the arch mold 1; when pouring, the support knocking head 20701 is against the top of the arch mold 1 to support the concrete. When demoulding, the support knocking head 20701 knocks the top of the arch mold 1 to accelerate its separation from the concrete.

[0039] The working method of the lining trolley for highway tunnel construction is as follows: first, the track 3 is laid in advance in the highway tunnel; the vehicle body 2 moves along the track 3 to drive the arch mold 1 into the tunnel; the connecting seat 402 is driven to move horizontally through the translation drive 403, extending the two ends of the arch mold 1, and the connecting seat 402 is driven to move upward to the outside of the arch mold 1 through the lifting drive 203, and at the same time, the fixed frame 40101, the rotating frame 1 40102 and the rotating frame 2 40103 form an arc structure matching the arc of the arch mold 1, and the arc structure moves back and forth with the further translation of the connecting seat 402, and the attachments on the surface of the arch mold 1 are scraped and cleaned in a large area. During the scraping and cleaning, the external air is introduced into the air inlet cavity through the air inlet fan 404, and the air outlet valve is exhausted to blow away the waste residue. After the cleaning is completed, the two groups of arc structures are located on both sides of the pouring port 101 in the middle, and the pouring port 101 is opened and concrete is introduced, and the concrete is poured between the arc structures on both sides. The supporting striking head 20701 is pressed against the top of the arch mold 1, and the hydraulic supporting rod 206 is pressed against the side of the arch mold 1 to support the concrete. After the section is poured, the outside air is introduced into the air inlet chamber through the air inlet fan 404, and the air is exhausted through the air outlet valve to supply air to the concrete to accelerate its drying and molding. Vibrator 1 40104 and vibrator 2 5 work to accelerate the exhaust and compaction of the concrete during pouring. Then the two groups of arc structures gradually move outward, and continue to pour layer by layer from the middle to both sides until the pouring and drying of the entire tunnel are completed. Then, the connecting seat 402 is driven down to the inner side of the arch mold 1 by the lifting drive 203, and the rotating frame 1 40102 and the rotating frame 2 40103 rotate inward, cooperate with the connection seat 402 to descend, and the fixed frame 40101 returns to the inside of the arch mold 1. The bent rotating frame 1 40102 and rotating frame 2 40103 rotate back and forth at a certain frequency on both sides of the fixed frame 40101 like a pendulum, knocking the inner wall of the arch mold 1, supporting the knocking head 20701 to knock the top of the arch mold 1, and accelerating the separation of the arch mold 1 from the concrete. After demoulding, the car body 2 moves along the track 3 to drive the arch mold 1 to the outside of the tunnel.

[0040] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A lining trolley for highway tunnel construction, characterized in that: include: A vehicle body (2), the vehicle body (2) moves along a track (3) and enters and exits a highway tunnel; An arched mold (1), the arched mold (1) being semi-enclosed and arranged on the vehicle body (2); and a cleaning demoulding component (4), the cleaning demoulding component (4) being arranged along the length direction of the arched mold (1) and being arranged on the vehicle body (2) in a liftable manner, and both ends of the cleaning demoulding component (4) being provided with multi-segment cleaning demoulding parts (401); The multi-segment cleaning demoulding member (401) is moved on the inner and outer sides of the arched mold (1) by lifting. The multi-segment cleaning demoulding member (401) moves on the outer wall of the arched mold (1) to scrape and clean the debris attached to the arched mold (1) and assist in pouring concrete from both sides of the pouring port (101). The multi-segment cleaning demoulding member (401) is rotated in sections on the inner wall of the arched mold (1) to knock on the inner wall of the arched mold (1) to assist in demoulding and to reduce the volume for storage.

2. The lining trolley for highway tunnel construction according to claim 1, characterized in that: The vehicle body (2) comprises a support frame (202) connected to the arched mold (1); a movable column (208) cooperating with the track (3) is arranged at the bottom of the support frame (202), and a liftable mounting frame (201) is arranged at the upper end; The cleaning and demoulding assembly (4) is arranged on the mounting frame (201).

3. The lining trolley for highway tunnel construction according to claim 2, characterized in that: The upper end of the support frame (202) is provided with a mounting groove (204); a reset spring (205) and a lifting drive member (203) are provided at the bottom of the mounting groove (204); the support frame (202) is driven by the lifting drive member (203), and the bottom end moves up and down in the mounting groove (204), while being connected to the reset spring (205); and an auxiliary member (207) for supporting or knocking is provided at the top end of the support frame (202).

4. The lining trolley for highway tunnel construction according to claim 3, characterized in that: The support frame (202) is configured as a hollow semi-columnar structure with two open ends, the horizontal section facing downwards, extending into the mounting groove (204), connected to the return spring (205) and the lifting drive member (203), and the arc section facing upwards, connected to the auxiliary member (207); The translation drive member (403) of the cleaning demoulding assembly (4) is arranged in the semi-cylindrical cavity of the support frame (202) along the length direction of the arched mold (1), and the two groups of cleaning demoulding members (401) are respectively connected to the driving ends of the translation drive member (403) and extend from the front and rear open sides.

5. The lining trolley for highway tunnel construction according to claim 4, characterized in that: A connecting seat (402) is provided on the driving end of the translation driving member (403); the connecting seat (402) is connected to the cleaning demoulding member (401) via a bending rod (405).

6. The lining trolley for highway tunnel construction according to claim 5, characterized in that: The cleaning demoulding member (401) comprises a fixed frame (40101) located in the middle of the raised section of the arched mold (1), a rotating frame 1 (40102) rotatably connected to both sides of the fixed frame (40101), and a rotating frame 2 (40103) rotatably connected to the rotating frame 1 (40102); The bending rod (405) is connected between the connecting seat (402) and the fixing frame (40101).

7. The lining trolley for highway tunnel construction according to claim 6, characterized in that: Vibrator 1 (40104) is provided on rotating frame 1 (40102) and rotating frame 2 (40103); A second vibrator (5) is provided on the arched mold (1).

8. The lining trolley for highway tunnel construction according to claim 6, characterized in that: An air outlet valve is provided on the fixing frame (40101); The connecting seat (402) is hollow and has an air inlet cavity built therein. An air inlet fan (404) connected to the air inlet cavity is arranged outside the connecting seat (402). A filter screen (406) is arranged inside the air inlet cavity. The bending rod (405) is hollow and communicates with the air inlet cavity and the air outlet valve.

9. The lining trolley for highway tunnel construction according to claim 4, characterized in that: A plurality of auxiliary parts (207) are arranged on the top of the hollow semi-columnar structure of the support frame (202), each group comprising a telescopic support cylinder (20702) and a support striking head (20701) located on the telescopic end of the telescopic support cylinder (20702); The supporting striking head (20701) is not connected to the arched mold (1).

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