A novel self-propelled trolley for one-time casting of the central partition wall of a double-arch tunnel.

Abstract

This invention provides a novel self-propelled trolley for one-time casting of a central partition wall in a double-arch tunnel, relating to the field of tunnel construction technology. It includes a front main frame and a rear main frame, both symmetrically distributed in two locations, with the front main frame positioned in front of the rear main frame. By activating a vibration motor and vibrating along the guide rail, it can guide the formwork casting in all directions, both vertically and horizontally. Since there is no need to install vibrators extensively on the formwork, the vibration guidance operation is simple, requiring only control of the drive motor. This solves the problems of the fixed and unadjustable connection structure of the overall steel formwork trolley, which makes it difficult to meet the casting needs of central partition walls of different widths. Furthermore, the trolley is prone to jamming and uneven operation when traveling along a track with a certain slope, and the extensive installation of vibrators on the formwork for concrete casting is cumbersome and increases maintenance costs.

Description

Technical Field

[0001] This invention relates to the field of tunnel construction technology, and in particular to a self-propelled central partition wall trolley for one-time casting of a novel double-arch tunnel. Background Technology

[0002] The twin-arch tunnel is mainly composed of a central partition wall connecting the two arches. Its structural characteristics dictate that its construction must be carried out in multiple steps, with significant inter-step interactions between each process. To ensure the internal solidity and external aesthetics of the central partition wall concrete, and to achieve rapid construction within the confined space, the tunnel is constructed using an integral steel formwork trolley and pumped concrete method.

[0003] However, the existing self-propelled trolleys for casting new double-arch tunnel partition walls in one go have many drawbacks. The overall steel formwork trolley connection structure is fixed and difficult to adjust, and the structural assembly and adjustment are cumbersome and laborious. This makes it difficult to meet the needs of casting partition walls of different widths. At the same time, the overall frame structure is large, and when it travels along a track with a certain slope, it is prone to jamming and running unevenly, requiring manual lifting, which greatly increases the labor intensity of workers. Moreover, vibrators are installed on a large area of ​​the formwork to guide the concrete pouring, requiring the use of multiple detection and control drive elements. This not only increases the equipment manufacturing cost but also makes the operation process cumbersome, resulting in increased maintenance costs. Summary of the Invention

[0004] In view of this, the present invention provides a novel self-propelled trolley for one-time casting of the central partition wall of a double-arch tunnel, which solves the problems of the overall steel formwork trolley connection structure being difficult to adjust and fix, making it difficult to meet the needs of casting central partition walls of different widths. At the same time, the trolley is prone to jamming and running unevenly when traveling along a track with a certain slope. Moreover, vibrators are installed on a large area of ​​the formwork to guide the concrete pouring, making the operation process cumbersome and increasing maintenance costs.

[0005] This invention provides a novel self-propelled trolley for one-time casting of a central partition wall in a double-arch tunnel. Specifically, it includes: a front main frame and a rear main frame, both symmetrically arranged in two locations, with the front main frame positioned in front of the rear main frame. An adjusting cylinder is provided between the front and rear main frames. Both the front and rear main frames have wheels at their bottoms, which are connected to a track. Two templates are located between the left and right sides of the front and rear main frames. These templates are symmetrically arranged, with support frames on their outer sides. An mounting frame is provided between the templates and the front and rear main frames, and this mounting frame is connected to the support frame. A sliding frame is provided on each template. Two vibration motors are mounted on the sliding frame. A first support cylinder and a second support cylinder are respectively located on the upper and lower sides of the front and rear main frames, with the first support cylinder connected to the mounting frame and the second support cylinder connected to the support frame.

[0006] Furthermore, the trolley front main frame is a rectangular frame structure, and the front end of the trolley front main frame is provided with two first connecting rods, which are distributed in a parallel manner. The bottom crossbar of the trolley front main frame is provided with a lifting cylinder, and the bottom of the telescopic rod of the lifting cylinder is provided with a sliding wheel, which is rolledly connected to the track.

[0007] Furthermore, a connecting rod is provided between the first connecting rods of the two trolley front main frames. Insert rods are provided at both ends of the connecting rod, and compression springs are fitted on the insert rods. The insert rods of the connecting rod slide through the baffles on the inner sides of the left and right first connecting rods, and the compression springs are supported between the baffles and the connecting rods.

[0008] Furthermore, the rear main frame of the trolley is a rectangular frame structure, and two second connecting rods are provided on the rear side of the rear main frame of the trolley. The two second connecting rods are distributed in a vertically parallel manner, and a connecting bolt is provided between the two second connecting rods of the rear main frame of the trolley. The connecting bolt passes through the baffles on the inner sides of the left and right second connecting rods and is controlled by a locking nut.

[0009] Furthermore, a limiting groove is provided at the front end of the top crossbar of the rear main frame of the trolley, and a first connecting frame and a second connecting frame are respectively provided on the upper and lower sides of the front end of the rear main frame of the trolley. The first connecting frame and the second connecting frame are distributed symmetrically, and the first connecting frame and the second connecting frame are rotatably connected to the front main frame of the trolley through a pin. The first connecting frame is provided with two limiting round rods, and the first connecting frame is slidably connected to the limiting groove through the limiting round rods.

[0010] Furthermore, the template is provided with grouting holes, which are distributed in a linear array. There are two limiting frames on both the front and rear sides of the template, and the limiting frames of the two templates are connected by connecting ropes. There are two guide rails on the opposite outer sides of the two templates, and the two guide rails are distributed in a parallel manner.

[0011] Furthermore, the guide rail is provided with a guide groove, and limit stops are provided on the upper and lower sides of the guide rail.

[0012] Furthermore, the mounting bracket has two U-shaped structures, and two fixed support rods are provided between the two mounting brackets. The two fixed support rods are distributed symmetrically, and an adjusting screw is provided between the two fixed support rods. The adjusting screw is rotatably connected to the fixed support rod through a bearing. A drive motor is provided on the rear fixed support rod, and the shaft of the drive motor is connected to the adjusting screw.

[0013] Furthermore, the sliding frame has a U-shaped structure, and a threaded sleeve is provided in the middle of the sliding frame. The sliding sleeve is slidably connected to the adjusting screw through the thread. The sliding frame has two sliding sleeves, which are symmetrically distributed. The sliding frame is slidably connected to the mounting frame through the sliding sleeves.

[0014] Furthermore, a sliding seat is provided on one side of the vibration motor, and two rolling wheels are rotatably mounted on the sliding seat. The sliding seat is connected to the short rod of the sliding frame, and the sliding seat is set in the guide groove of the guide rail. The rolling wheels are rotatably connected to the guide groove, and the vibration motor is set between the upper and lower limit stops.

[0015] Beneficial effects

[0016] 1. The trolley front main frame of this device is equipped with a lifting cylinder. Power is provided by the lifting cylinder, and the trolley front main frame can make arc motion with the pin of the second connecting frame as the axis. At the same time, it cooperates with the first connecting frame to slide backward along the limiting through groove, thereby realizing the lifting action of the front end of the trolley front main frame. This makes the device move more smoothly when moving uphill along the slope, which can meet the needs of tunnels with a certain slope. Its structure is more reasonable.

[0017] 2. The two front main frames of the trolleys in this device are connected by opposite first connecting rods, and the two rear main frames of the trolleys are connected by opposite second connecting frames. Since there are connecting rods between the first connecting rods, and with the elasticity of the compression spring, it can meet the use of partition walls of different widths. At the same time, there are connecting bolts between the second connecting rods, and the extension and retraction distance is controlled by locking nuts. Its connection structure is simple and the adjustment and use are more convenient and flexible.

[0018] 3. This device is powered by a drive motor, which rotates the adjusting screw to drive the sliding frame to slide back and forth along the mounting frame. Since the vibrating motor and the sliding seat are located inside the guide rail, they can slide along the guide groove. The upper and lower ends of the vibrating motor are in contact with two limit stops. When concrete is poured between the two templates, by turning on the vibrating motor and vibrating along the guide rail, the formwork pouring can be guided in all directions in terms of vertical and horizontal and front and back positions. Since there is no need to install vibrators on the template in a large area, its vibration guidance operation is simple and can be completed by controlling the drive motor. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram:

[0022] Figure 1 This is a schematic diagram of the overall axial structure of an embodiment of the present invention.

[0023] Figure 2 This is a schematic diagram of the front main frame, rear main frame, and adjusting cylinder structure of the trolley according to an embodiment of the present invention.

[0024] Figure 3 This is a schematic diagram of the exploded state structure of the front main frame and the rear main frame of the trolley according to an embodiment of the present invention.

[0025] Figure 4 These are schematic diagrams of the two trolley front main frames in an exploded state, according to an embodiment of the present invention.

[0026] Figure 5 This is a schematic diagram of the template structure of an embodiment of the present invention.

[0027] Figure 6 This is an exploded structural diagram of the trolley's front main frame and rear main frame, along with the mounting frame and support frame, according to an embodiment of the present invention.

[0028] Figure 7 This is a schematic diagram of the template, mounting frame, support frame, and sliding frame structure according to an embodiment of the present invention.

[0029] Figure 8 This is a schematic diagram of the sliding frame and vibration motor structure according to an embodiment of the present invention.

[0030] List of reference numerals

[0031] 1. Front main frame of the trolley; 101. First connecting rod; 102. Lifting cylinder; 103. Connecting rod; 104. Compression spring; 2. Rear main frame of the trolley; 201. Second connecting rod; 202. Limiting through groove; 203. First connecting frame; 204. Limiting round rod; 205. Second connecting frame; 3. Adjusting cylinder; 4. Template; 401. Grouting hole; 402. Limiting frame; 403. Connecting rope; 404. Guide rail; 4041. Guide slide groove; 4042. Limiting stop; 5. Mounting frame; 501. Fixed support rod; 502. Adjusting screw; 503. Drive motor; 6. Support frame; 7. Sliding frame; 701. Threaded sleeve; 702. Sliding sleeve; 8. Vibration motor; 801. Sliding seat; 802. Rolling wheel; 9. First support cylinder; 10. Second support cylinder. Detailed Implementation

[0032] To make the objectives, solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Unless otherwise stated, the terms used herein have their ordinary meanings in the art. The same reference numerals in the drawings represent the same parts.

[0033] Example: Please refer to Figures 1 to 8 As shown:

[0034] This invention provides a novel self-propelled trolley for one-time casting of a double-arch tunnel central partition wall, comprising a front main frame 1 and a rear main frame 2. Both the front and rear main frames are symmetrically arranged in two locations, with the front main frame 1 located in front of the rear main frame 2. An adjusting cylinder 3 is provided between the front and rear main frames 1 and 2. Both the front and rear main frames 1 and 2 are equipped with wheels at their bottoms, which are connected to a track. Two templates are located between the left and right front and rear main frames 1 and 2. 4; Two templates 4 are symmetrically distributed, and support frames 6 are provided on the outer sides of the two templates 4; An installation frame 5 is provided between the template 4 and the front main frame 1 and the rear main frame 2 of the trolley, and the installation frame 5 is connected to the support frame 6; A sliding frame 7 is provided on the template 4; Two vibration motors 8 are provided on the sliding frame 7; A first support cylinder 9 and a second support cylinder 10 are provided on the upper and lower sides of the front main frame 1 and the rear main frame 2 of the trolley, respectively, and the first support cylinder 9 is connected to the installation frame 5, and the second support cylinder 10 is connected to the support frame 6.

[0035] Among them, the front main frame 1 of the trolley is a rectangular frame structure, and the front end of the front main frame 1 of the trolley is provided with two first connecting rods 101, and the two first connecting rods 101 are distributed in a parallel manner. The bottom crossbar of the front main frame 1 of the trolley is provided with a lifting cylinder 102, and the bottom of the telescopic rod of the lifting cylinder 102 is provided with a sliding wheel, and the sliding wheel is connected to the track in a rolling manner.

[0036] A limiting slot 202 is provided at the front end of the top crossbar of the rear main frame 2 of the trolley. A first connecting frame 203 and a second connecting frame 205 are respectively provided on the upper and lower sides of the front end of the rear main frame 2 of the trolley, and the first connecting frame 203 and the second connecting frame 205 are symmetrically distributed. The first connecting frame 203 and the second connecting frame 205 are rotatably connected to the front main frame 1 of the trolley via pins. Two limiting round rods 204 are provided on the first connecting frame 203, and the first connecting frame 203 is connected to the front main frame 1 of the trolley via the limiting round rods 204. The limiting groove 202 is slidably connected. The trolley front main frame 1 of this device is equipped with a lifting cylinder 102. Power is provided by the lifting cylinder 102, and the trolley front main frame 1 can make arc motion with the pin of the second connecting frame 205 as the axis. At the same time, it cooperates with the first connecting frame 203 to slide backward along the limiting groove 202, thereby realizing the lifting action of the front end of the trolley front main frame 1. This makes the device move more smoothly when it moves uphill along the slope, which can meet the needs of tunnels with a certain slope. Its structure is more reasonable.

[0037] Among them, a docking rod 103 is provided between the first connecting rods 101 of the two front main frames 1 of the trolley. The docking rod 103 has insert rods at both ends, and compression springs 104 are fitted on the insert rods. The insert rods of the docking rod 103 slide through the baffles on the inner sides of the left and right first connecting rods 101, and the compression springs 104 are supported between the baffles and the docking rod 103.

[0038] The rear main frame 2 of the trolley has a rectangular frame structure, and two second connecting rods 201 are provided on the rear side of the rear main frame 2. The two second connecting rods 201 are distributed in a parallel manner, and a connecting bolt is provided between the two second connecting rods 201 of the trolley rear main frame 2. The connecting bolt passes through the baffles on the inner sides of the left and right second connecting rods 201 and is controlled by a locking nut. The two trolley front main frames 1 in this device are connected by opposite first connecting rods 101, and the two trolley rear main frames 2 are connected by opposite second connecting frames 205. Since there is a connecting rod 103 between the first connecting rods 101, in conjunction with the elastic action of the compression spring 104, it can meet the use of partition walls of different widths. At the same time, there is a connecting bolt between the second connecting rods 201, and the extension and retraction distance is controlled by a locking nut. Its connection structure is simple and the adjustment and use are more convenient and flexible.

[0039] The template 4 is provided with grouting holes 401, and the grouting holes 401 are distributed in a linear array. There are two limiting frames 402 on both the front and rear sides of the template 4. The limiting frames 402 of the two templates 4 are connected with connecting ropes 403. There are two guide rails 404 on the opposite outer sides of the two templates 4, and the two guide rails 404 are distributed in a parallel manner.

[0040] The guide rail 404 is provided with a guide groove 4041, and the guide rail 404 is provided with limit stops 4042 on the upper and lower sides.

[0041] The mounting bracket 5 has two U-shaped structures, and two fixed support rods 501 are provided between the two mounting brackets 5. The two fixed support rods 501 are distributed symmetrically. An adjusting screw 502 is provided between the two fixed support rods 501. The adjusting screw 502 is rotatably connected to the fixed support rod 501 through a bearing. A drive motor 503 is provided on the rear fixed support rod 501, and the rotating shaft of the drive motor 503 is connected to the adjusting screw 502.

[0042] The sliding frame 7 has a U-shaped structure, and a threaded sleeve 701 is provided in the middle of the sliding frame 7. The sliding sleeve 702 is slidably connected to the adjusting screw 502 by means of threads. The sliding frame 7 has two sliding sleeves 702, and the two sliding sleeves 702 are distributed symmetrically. The sliding frame 7 is slidably connected to the mounting frame 5 through the sliding sleeves 702.

[0043] A sliding seat 801 is provided on one side of the vibrating motor 8, and two rolling wheels 802 are rotatably mounted on the sliding seat 801. The sliding seat 801 is connected to the short rod of the sliding frame 7, and the sliding seat 801 is set in the guide groove 4041 of the guide rail 404. The rolling wheels 802 are in rolling connection with the guide groove 4041. The vibrating motor 8 is set between the upper and lower limit stops 4042. This device is powered by the drive motor 503, which rotates the adjusting screw 502, driving the sliding frame 7 to move back and forth along the mounting frame 5. Sliding: Since the vibrating motor 8 and the sliding seat 801 are located inside the guide rail 404, they can slide along the guide groove 4041. The upper and lower ends of the vibrating motor 8 are in contact with the two limiting stops 4042. When concrete is poured between the two templates 4, by turning on the vibrating motor 8 and vibrating along the guide rail 404, the pouring of the template 4 can be guided in all directions in the upper, lower and front and back positions. Since there is no need to install vibrators on the template 4 in a large area, its vibration guidance operation is simple and can be completed by controlling the drive motor 503 to run.

[0044] The specific usage and function of this embodiment: In this invention, the lifting cylinder 102 provides power, enabling the front main frame 1 of the trolley to move in an arc around the pin of the second connecting frame 205. Simultaneously, the first connecting frame 203 slides backward along the limiting groove 202, thereby achieving the lifting action of the front end of the front main frame 1. This makes the entire device move more smoothly uphill along a slope, meeting the requirements for tunnels with a certain slope, and its structure is more reasonable. The two front main frames 1 of the trolley are connected by opposing first connecting rods 101, and the two rear main frames 2 of the trolley are connected by opposing second connecting frames 205. Because the first connecting rods 101 are connected by connecting rods 103, and with the elastic action of the compression spring 104, it can accommodate the use of partition walls of different widths. Meanwhile, the second connecting rods... A connecting bolt is provided between 201, and the extension and retraction distance between them is controlled by locking nuts. Its connection structure is simple and its adjustment and use are more convenient and flexible. Power is provided by drive motor 503, which makes adjusting screw 502 rotate, which can drive sliding frame 7 to slide back and forth along mounting frame 5. Since vibrating motor 8 and sliding seat 801 are located in guide rail 404, they can slide along guide groove 4041. The upper and lower ends of vibrating motor 8 are in contact with two limit stops 4042. When concrete is poured between the two templates 4, by turning on vibrating motor 8 and vibrating along guide rail 404, the pouring of template 4 can be guided in all directions in the vertical and horizontal and back and forth positions. Since there is no need to install vibrators on template 4 in a large area, its vibration guidance operation is simple and can be completed by controlling the operation of drive motor 503.

[0045] Finally, it should be noted that when describing the position of each component and the mating relationship between them, the present invention usually uses one or a pair of components as examples. However, those skilled in the art should understand that such positions, mating relationships, etc., are also applicable to other components or other pairs of components.

[0046] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the scope of protection of the present invention, which is determined by the appended claims.

Claims

1. A self-propelled trolley for one-time casting of a novel double-arch tunnel central partition wall, characterized in that: A self-propelled trolley for casting a new type of double-arch tunnel partition wall in one go includes: a front main frame (1) and a rear main frame (2). The front main frame (1) and the rear main frame (2) are distributed symmetrically on both sides, with the front main frame (1) located in front of the rear main frame (2). An adjusting cylinder (3) is provided between the front main frame (1) and the rear main frame (2). The bottom of the front main frame (1) and the rear main frame (2) are provided with wheels, which are connected to the track. Two templates (4) are provided between the front main frame (1) and the rear main frame (2) on both sides. The two templates (4) are arranged in a symmetrical manner. The templates are symmetrically distributed, and two templates (4) are provided with support frames (6) on their outer sides; the templates (4) are provided with mounting frames (5) between the front main frame (1) and the rear main frame (2) of the trolley, and the mounting frames (5) are connected to the support frames (6); the templates (4) are provided with sliding frames (7); the sliding frames (7) are provided with two vibration motors (8); the front main frame (1) and the rear main frame (2) of the trolley are provided with a first support cylinder (9) and a second support cylinder (10) on their upper and lower sides, respectively, and the first support cylinder (9) is connected to the mounting frame (5), and the second support cylinder (10) is connected to the support frame (6); The template (4) is provided with grouting holes (401), and the grouting holes (401) are distributed in a linear array. There are two limiting frames (402) on both the front and rear sides of the template (4). The limiting frames (402) of the two templates (4) are connected with connecting ropes (403). There are two guide rails (404) on the opposite outer sides of the two templates (4), and the two guide rails (404) are distributed in a parallel manner. The guide rail (404) is provided with a guide groove (4041), and the guide rail (404) is provided with limit stops (4042) on the upper and lower sides.

2. The self-propelled central partition wall trolley for one-time casting of a novel double-arch tunnel as described in claim 1, characterized in that: The trolley front main frame (1) is a rectangular frame structure, and the front end of the trolley front main frame (1) is provided with two first connecting rods (101), and the two first connecting rods (101) are distributed in a parallel manner. The bottom crossbar of the trolley front main frame (1) is provided with a lifting cylinder (102), and the bottom of the telescopic rod of the lifting cylinder (102) is provided with a sliding wheel, and the sliding wheel is connected to the track in a rolling manner.

3. The self-propelled central partition wall trolley for one-time casting of a novel double-arch tunnel as described in claim 2, characterized in that: A connecting rod (103) is provided between the first connecting rod (101) of the two trolley front main frame (1). The connecting rod (103) has insert rods at both ends and a compression spring (104) is fitted on the insert rod. The insert rod of the connecting rod (103) slides through the baffles on the inner side of the left and right first connecting rods (101), and the compression spring (104) is supported between the baffle and the connecting rod (103).

4. The self-propelled central partition wall trolley for one-time casting of a novel double-arch tunnel as described in claim 1, characterized in that: The rear main frame (2) of the trolley is a rectangular frame structure, and there are two second connecting rods (201) on the rear side of the trolley rear main frame (2). The two second connecting rods (201) are distributed in a parallel manner. A connecting bolt is provided between the two second connecting rods (201) of the trolley rear main frame (2). The connecting bolt passes through the baffles on the inner side of the left and right second connecting rods (201) and is controlled by a locking nut.

5. The self-propelled central partition wall trolley for one-time casting of a novel double-arch tunnel as described in claim 4, characterized in that: The front end of the top crossbar of the rear main frame (2) of the trolley is provided with a limiting through groove (202). The front end of the rear main frame (2) of the trolley is provided with a first connecting frame (203) and a second connecting frame (205) respectively. The first connecting frame (203) and the second connecting frame (205) are symmetrically distributed. The first connecting frame (203) and the second connecting frame (205) are rotatably connected to the front main frame (1) of the trolley through a pin. The first connecting frame (203) is provided with two limiting round rods (204). The first connecting frame (203) is slidably connected to the limiting through groove (202) through the limiting round rods (204).

6. The self-propelled central partition wall trolley for one-time casting of a novel double-arch tunnel as described in claim 1, characterized in that: The mounting bracket (5) has two U-shaped structures, and two fixed support rods (501) are provided between the two mounting brackets (5). The two fixed support rods (501) are distributed symmetrically. An adjusting screw (502) is provided between the two fixed support rods (501). The adjusting screw (502) is rotatably connected to the fixed support rod (501) through a bearing. A drive motor (503) is provided on the rear fixed support rod (501), and the shaft of the drive motor (503) is connected to the adjusting screw (502).

7. The self-propelled central partition wall trolley for one-time casting of a novel double-arch tunnel as described in claim 1, characterized in that: The sliding frame (7) has a U-shaped structure, and a threaded sleeve (701) is provided in the middle of the sliding frame (7). The sliding sleeve (702) is slidably connected to the adjusting screw (502) by means of threads. There are two sliding sleeves (702) on the sliding frame (7), and the two sliding sleeves (702) are distributed symmetrically. The sliding frame (7) is slidably connected to the mounting frame (5) through the sliding sleeves (702).

8. The self-propelled central partition wall trolley for one-time casting of a novel double-arch tunnel as described in claim 1, characterized in that: The vibration motor (8) is provided with a sliding seat (801) on one side, and two rolling wheels (802) are rotatably installed on the sliding seat (801). The sliding seat (801) is connected to the short rod of the sliding frame (7), and the sliding seat (801) is set in the guide groove (4041) of the guide rail (404). The rolling wheels (802) are rotatably connected to the guide groove (4041), and the vibration motor (8) is set between the upper and lower limit stops (4042).

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