Self-propelled hydraulic invert trestle hydraulic automatic balance system

Abstract

The present invention discloses a hydraulic automatic balance system for a self-propelled hydraulic invert trestle bridge, which includes two bridge plates, a front approach bridge plate, an angle adjustment hydraulic cylinder, a landing plate, support legs, a leveling hydraulic cylinder, anti-slip strips, and guardrails installed on the front and rear end faces of the bridge plates. In the present invention, first, by detecting the X-axis inclination angle and Y-axis inclination angle of the bridge plate with respect to the horizontal plane through the first horizontal sensor and the second horizontal sensor respectively, the controller controls the leveling hydraulic cylinder to level the bridge plate, thereby completing the automatic leveling of the bridge plate and improving the convenience of adjustment. Secondly, by sliding the push plate on the tops of the bridge plate and the front approach bridge plate, the concrete that has fallen onto the tops of the bridge plate and the front approach bridge plate is pushed outwards, thereby improving the anti-slip performance of the device. Finally, by the contraction of the sliding hydraulic cylinder, the bottom rod and the guardrail are driven to move downwards. At the same time, the slider slides down along the chute, thereby completing the downward adjustment of the guardrail and improving the adjustment performance of the guardrail.

Description

Technical Field

[0001] The present invention relates to the technical field of invert trestles, and particularly to a hydraulic automatic balance system for a self-propelled hydraulic invert trestle. Background Art

[0002] A hydraulic invert trestle is a way often adopted in tunnel engineering construction to pass through the invert operation area for the passage of personnel and mechanical equipment; it is generally used in the construction of railway projects, highway projects, municipal projects, and hydropower projects with invert excavation and support operations.

[0003] However, the existing invert trestles still have deficiencies: First, most of the existing invert trestles are leveled by the operator observing with the naked eye, making it difficult to achieve automatic leveling of the invert trestle, resulting in poor leveling convenience and accuracy. Second, most of the top of the deck of the invert trestle is provided with multiple groups of anti-slip strips. However, when transporting vehicles, concrete will spill onto the top of the deck and cover the anti-slip strips, leading to poor anti-slip performance of the deck. Finally, most of the guardrails of the invert trestle are fixed to the bridge body by welding. This type of fixed guardrail will be repeatedly installed and disassembled when over-width equipment and materials enter the site, which is time-consuming and laborious, and there is a problem of poor adjustability of the guardrail. Summary of the Invention

[0004] The purpose of the present invention is to propose a hydraulic automatic balance system for a self-propelled hydraulic invert trestle to solve the problems of poor leveling convenience, poor leveling accuracy, poor anti-slip performance of the deck, and poor adjustability of the guardrail.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A hydraulic automatic balance system for a self-propelled hydraulic invert trestle, including two bridge plates, a front approach bridge plate, an angle-adjusting hydraulic cylinder, a bridging plate, support legs, a leveling hydraulic cylinder, anti-slip strips, and guardrails installed on the front and rear end faces of the bridge plates. Both sides of the bottom of the two bridge plates are fixedly connected with support legs, and the two bridge plates are fixedly connected through a connecting plate. The bottom of each of the four groups of support legs is installed with a leveling hydraulic cylinder. Both sides of the two bridge plates are rotatably connected with a front approach bridge plate through a rotating shaft. The two front approach bridge plates are fixedly connected through a connecting plate. The side end faces of the two front approach bridge plates are rotatably connected with a bridging plate through a rotating shaft. An angle-adjusting hydraulic cylinder is installed between the support legs and the front approach bridge plate. Anti-slip strips are fixedly connected to the tops of the bridge plates and the front approach bridge plates. A two-way hydraulic cylinder is installed on the top of the connecting plate, and push plates are installed on both the front and rear sides of the two-way hydraulic cylinder. A first horizontal sensor is installed on the front end face of the bridge plate, and a second horizontal sensor is installed directly below the first horizontal sensor at the bottom of the bridge plate.

[0007] As a further description of the above technical solution:

[0008] A plurality of slide grooves are arranged inside the front and rear sides of the bridge plate.

[0009] As a further description of the above technical solution:

[0010] Slide blocks are slidably arranged on the inner sides of the plurality of slide grooves, and bottom rods are fixedly connected to the outer sides of the plurality of slide blocks.

[0011] As a further description of the above technical solution:

[0012] The top of the bottom rod is fixedly connected with a guardrail.

[0013] As a further description of the above technical solution:

[0014] The front and rear end surfaces of the supporting legs are both equipped with sliding hydraulic cylinders, and the top of the sliding hydraulic cylinder is fixedly connected to the bottom of the bottom rod.

[0015] As a further description of the above technical solution:

[0016] A controller is installed on the side end surface of the supporting leg.

[0017] As a further description of the above technical solution:

[0018] The four groups of leveling hydraulic cylinders are respectively a first leveling hydraulic cylinder, a second leveling hydraulic cylinder, a third leveling hydraulic cylinder and a fourth leveling hydraulic cylinder.

[0019] As a further description of the above technical solution:

[0020] The first horizontal sensor is horizontally arranged along the X-axis direction of the bridge plate, and the second horizontal sensor is horizontally arranged along the Y-axis direction of the bridge plate.

[0021] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0022] 1. In the present invention, the first level sensor and the second level sensor respectively detect the X-axis inclination angle and the Y-axis inclination angle of the bridge deck and the horizontal plane, and the controller controls the leveling hydraulic cylinder to level the bridge deck, thereby completing the automatic leveling of the bridge deck, thereby improving the convenience of adjustment.

[0023] 2. In the present invention, the X-axis inclination angle and Y-axis inclination angle of the bridge deck to the horizontal plane are detected by the first horizontal sensor and the second horizontal sensor respectively, and the data are transmitted to the controller in real time. The highest point of the four corners of the bridge deck is calculated by the controller, and the leveling hydraulic cylinder at the bottom of the highest point of the bridge deck remains unchanged, and the other three groups of leveling hydraulic cylinders are lifted up until the first horizontal sensor detects that the X-axis inclination angle of the bridge deck to the horizontal plane and the second sensor detects that the Y-axis inclination angle of the bridge deck to the horizontal plane is 0, thereby completing the automatic leveling of the bridge deck, thereby improving the accuracy of adjustment.

[0024] 3. In the present invention, through the extension of the bidirectional hydraulic cylinder, the push plate is pushed to slide on the top of the bridge plate and the front guide bridge plate, so as to push the concrete falling on the top of the bridge plate and the front guide bridge plate outwards, preventing the concrete from covering the anti-slip strips and reducing the anti-slip performance of the top of the bridge plate and the front guide bridge plate, thereby improving the anti-slip performance of the device.

[0025] 4. In the present invention, when ultra-wide equipment and materials enter the site, through the contraction of the sliding hydraulic cylinder, the bottom rod and the guardrail are driven to move downwards. At the same time, the slider slides down along the chute, thus completing the downward adjustment of the guardrail and improving the adjustment performance of the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Shows a schematic structural diagram of a self-propelled hydraulic invert trestle hydraulic automatic balance system provided according to an embodiment of the present invention;

[0027] Figure 2 Shows a schematic diagram according to the top view of the present invention;

[0028] Figure 3 Shows a schematic connection structure diagram of a bridge plate and a guardrail provided according to an embodiment of the present invention;

[0029] Figure 4 Shows a schematic top view of a bridge plate provided according to an embodiment of the present invention;

[0030] Figure 5 Shows a schematic diagram of a distribution map of leveling hydraulic cylinders provided according to an embodiment of the present invention.

[0031] LEGEND DESCRIPTION:

[0032] 1. Bridge plate; 2. Front guide bridge plate; 3. Angle adjustment hydraulic cylinder; 4. Apron plate; 5. Support leg; 6. Leveling hydraulic cylinder; 601. First leveling hydraulic cylinder; 602. Second leveling hydraulic cylinder; 603. Third leveling hydraulic cylinder; 604. Fourth leveling hydraulic cylinder; 7. First horizontal sensor; 8. Second horizontal sensor; 9. Chute; 10. Bottom rod; 11. Guardrail; 12. Sliding hydraulic cylinder; 13. Connecting plate; 14. Anti-slip strip; 15. Push plate; 16. Controller; 17. Slider; 18. Bidirectional hydraulic cylinder. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0034] Example 1. Refer to Figures 1-5 , the present invention provides a technical solution: a self-propelled hydraulic invert trestle hydraulic automatic balance system, including two bridge plates 1, a front approach bridge plate 2, an angle adjustment hydraulic cylinder 3, a landing plate 4, support legs 5, a leveling hydraulic cylinder 6, anti-slip strips 14, and guardrails 11 installed on the front and rear end faces of the bridge plate 1. Support legs 5 are fixedly connected to both sides of the bottom of the two bridge plates 1, and the two bridge plates 1 are fixedly connected through a connecting plate 13. Leveling hydraulic cylinders 6 are installed at the bottoms of the four groups of support legs 5. The two sides of the two bridge plates 1 are rotatably connected to the front approach bridge plate 2 through rotating shafts. The two groups of front approach bridge plates 2 are fixedly connected through the connecting plate 13. A landing plate 4 is rotatably connected to the side end faces of the two groups of front approach bridge plates 2 through rotating shafts. An angle adjustment hydraulic cylinder 3 is installed between the support legs 5 and the front approach bridge plate 2. Anti-slip strips 14 are fixedly connected to the tops of the bridge plate 1 and the front approach bridge plate 2. A two-way hydraulic cylinder 18 is installed on the top of the connecting plate 13, and push plates 15 are installed on both the front and rear sides of the two-way hydraulic cylinder 18. A first horizontal sensor 7 is installed on the front end face of the bridge plate 1, and a second horizontal sensor 8 is installed directly below the first horizontal sensor 7 at the bottom of the bridge plate 1. By extending the two-way hydraulic cylinder 18 to both the front and rear sides, the push plates 15 are driven to slide on the tops of the bridge plate 1 and the front approach bridge plate 2. The concrete slag that has fallen onto the tops of the bridge plate 1 and the front approach bridge plate 2 is pushed outwards by the push plates 15, preventing the concrete slag from covering the anti-slip strips 14 and causing the anti-slip performance of the device to decline.

[0035] Example 2. As Figure 3 and Figure 4 shown, a plurality of sliding grooves 9 are opened inside both the front and rear sides of the bridge plate 1. Sliders 17 slide inside the plurality of sliding grooves 9. Bottom rods 10 are fixedly connected to the outer sides of the plurality of sliders 17. Guardrails 11 are fixedly connected to the tops of the bottom rods 10. Sliding hydraulic cylinders 12 are installed on both the front and rear end faces of the support legs 5, and the tops of the sliding hydraulic cylinders 12 are fixedly connected to the bottoms of the bottom rods 10. When over-wide equipment and materials enter the site, by contracting the sliding hydraulic cylinders 12, the bottom rods 10 and the guardrails 11 are driven to move downwards. At the same time, the sliders 17 slide downwards inside the sliding grooves 9, thus completing the adjustment of the guardrails 11.

[0036] Example 3. As Figure 3 and Figure 5As shown in the figure, a controller 16 is installed on the side end face of the support leg 5. The four groups of leveling hydraulic cylinders 6 are respectively the first leveling hydraulic cylinder 601, the second leveling hydraulic cylinder 602, the third leveling hydraulic cylinder 603, and the fourth leveling hydraulic cylinder 604. The first horizontal sensor 7 is horizontally arranged along the X-axis direction of the bridge plate 1, and the second horizontal sensor 8 is horizontally arranged along the Y-axis direction of the bridge plate 1. The inclination angle of the bridge plate 1 with respect to the X-axis of the horizontal plane is detected by the first horizontal sensor 7, and the inclination angle of the bridge plate 1 with respect to the Y-axis of the horizontal plane is detected by the second horizontal sensor 8. The detected data is transmitted to the controller 16 in real time and analyzed by the controller 16. If the inclination angle of the bridge plate 1 with respect to the X-axis of the horizontal plane is greater than 0, and the inclination angle of the bridge plate 1 with respect to the Y-axis of the horizontal plane is greater than 0, then the position of the fourth leveling hydraulic cylinder 604 of the bridge plate 1 is the highest point. If the inclination angle of the bridge plate 1 with respect to the X-axis of the horizontal plane is greater than 0, and the inclination angle of the bridge plate 1 with respect to the Y-axis of the horizontal plane is less than 0, then the position of the third leveling hydraulic cylinder 603 of the bridge plate 1 is the highest point. If the inclination angle of the bridge plate 1 with respect to the X-axis of the horizontal plane is less than 0, and the inclination angle of the bridge plate 1 with respect to the Y-axis of the horizontal plane is less than 0, then the position of the first leveling hydraulic cylinder 601 of the bridge plate 1 is the highest point. If the inclination angle of the bridge plate 1 with respect to the X-axis of the horizontal plane is less than 0, and the inclination angle of the bridge plate 1 with respect to the Y-axis of the horizontal plane is greater than 0, then the position of the second leveling hydraulic cylinder 602 of the bridge plate 1 is the highest point. The controller 16 analyzes the highest points at the four corners of the bridge plate 1. The leveling hydraulic cylinders 6 at the bottom of the highest points remain unchanged, and the other three groups of leveling hydraulic cylinders 6 move upward, thereby completing the leveling of the bridge plate 1.

[0037] Working principle: During use, the first horizontal sensor 7 detects the inclination angle of the bridge plate 1 with respect to the X-axis of the horizontal plane, and the second horizontal sensor 8 detects the inclination angle of the bridge plate 1 with respect to the Y-axis of the horizontal plane. The detected data is transmitted to the controller 16 in real time and analyzed by the controller 16. If the inclination angle of the bridge plate 1 with respect to the X-axis of the horizontal plane is greater than 0 and the inclination angle of the bridge plate 1 with respect to the Y-axis of the horizontal plane is greater than 0, the position of the fourth leveling hydraulic cylinder 604 of the bridge plate 1 is at the highest point. If the inclination angle of the bridge plate 1 with respect to the X-axis of the horizontal plane is greater than 0 and the inclination angle of the bridge plate 1 with respect to the Y-axis of the horizontal plane is less than 0, the position of the third leveling hydraulic cylinder 603 of the bridge plate 1 is at the highest point. If the inclination angle of the bridge plate 1 with respect to the X-axis of the horizontal plane is less than 0 and the inclination angle of the bridge plate 1 with respect to the Y-axis of the horizontal plane is less than 0, the position of the first leveling hydraulic cylinder 601 of the bridge plate 1 is at the highest point. If the inclination angle of the bridge plate 1 with respect to the X-axis of the horizontal plane is less than 0 and the inclination angle of the bridge plate 1 with respect to the Y-axis of the horizontal plane is greater than 0, the position of the second leveling hydraulic cylinder 602 of the bridge plate 1 is at the highest point. The controller 16 analyzes the highest points at the four corners of the bridge plate 1. The leveling hydraulic cylinders 6 at the bottom of the highest points remain unchanged, and the other three groups of leveling hydraulic cylinders 6 move upward, thereby completing the leveling of the bridge plate 1. When over-wide equipment and materials enter the site, the contraction of the sliding hydraulic cylinder 12 drives the bottom rod 10 and the guardrail 11 to move downward. At the same time, the slider 17 slides downward in the chute 9, thereby completing the adjustment of the guardrail 11. The bidirectional hydraulic cylinder 18 extends to the front and rear sides, driving the push plate 15 to slide on the tops of the bridge plate 1 and the front approach bridge plate 2. The push plate 15 pushes the concrete slag that has fallen onto the tops of the bridge plate 1 and the front approach bridge plate 2 outward, preventing the concrete slag from covering the anti-slip strips 14 and causing a decline in the anti-slip performance of the device.

[0038] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. Self-propelled hydraulic invert trestle hydraulic automatic balance system, including two bridge plates (1), front approach bridge plate (2), angle-adjusting hydraulic cylinder (3), bridging plate (4), support legs (5), leveling hydraulic cylinder (6), anti-slip strips (14) and guardrails (11) installed at the front and rear end faces of the bridge plate (1). It is characterized in that Support legs (5) are fixedly connected to both sides of the bottoms of the two bridge plates (1), and the two bridge plates (1) are fixedly connected through a connecting plate (13). Leveling hydraulic cylinders (6) are installed at the bottoms of the four groups of support legs (5). The two sides of the two bridge plates (1) are rotatably connected to the front approach bridge plate (2) through a rotating shaft. The two groups of front approach bridge plates (2) are fixedly connected through a connecting plate (13). The side end faces of the two groups of front approach bridge plates (2) are rotatably connected to the bridging plate (4) through a rotating shaft. An angle-adjusting hydraulic cylinder (3) is installed between the support legs (5) and the front approach bridge plate (2). Anti-slip strips (14) are fixedly connected to the tops of the bridge plate (1) and the front approach bridge plate (2). A two-way hydraulic cylinder (18) is installed on the top of the connecting plate (13), and push plates (15) are installed on the front and rear sides of the two-way hydraulic cylinder (18). A first horizontal sensor (7) is installed on the front end face of the bridge plate (1), and a second horizontal sensor (8) is installed directly below the first horizontal sensor (7) at the bottom of the bridge plate (1). Multiple groups of sliding grooves (9) are opened inside the front and rear sides of the bridge plate (1). Sliders (17) slide inside the multiple groups of sliding grooves (9). The outer sides of the multiple groups of sliders (17) are fixedly connected to a bottom rod (10). The top of the bottom rod (10) is fixedly connected to a guardrail (11). Sliding hydraulic cylinders (12) are installed on the front and rear end faces of the support legs (5), and the tops of the sliding hydraulic cylinders (12) are fixedly connected to the bottom of the bottom rod (10). A controller (16) is installed on the side end face of the support leg (5). The four leveling hydraulic cylinders (6) are respectively a first leveling hydraulic cylinder (601), a second leveling hydraulic cylinder (602), a third leveling hydraulic cylinder (603) and a fourth leveling hydraulic cylinder (604). The first horizontal sensor (7) is horizontally arranged along the X-axis direction of the bridge plate (1), and the second horizontal sensor (8) is horizontally arranged along the Y-axis direction of the bridge plate (1).

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