Main truss
By setting a combined structure of square cylinder, cylindrical cylinder and reverse headwheel equipment on the bottom plate of the main truss, the problem of insufficient stability of the existing bridge-building machine's main truss hoisting cylinder is solved, and higher stability and flexibility are achieved, and construction safety and efficiency are improved.
Patent Information
- Application Number
- CN202510390008.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2025-05-09
AI Technical Summary
The main truss lifting cylinder of the existing bridge-building machine is insufficient in the load-bearing process, resulting in the problem of unstable support during actual work.
A main truss is designed, and a combined structure of square oil cylinder, cylindrical oil cylinder and reverse headwheel equipment is installed on the bottom plate. The stability is increased through the inverted "T" and "L" shape structures, and the action sequence of the oil cylinder is controlled differently through oil flow to achieve higher stability and flexibility.
Through this structural design, the stability of the hoisting cylinder is significantly improved, ensuring that the support is more stable during the load bearing process, and improving the overall construction safety and efficiency.
Smart Images
Figure CN119956685A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of intelligent cantilever bridge-building machines, and in particular to a main truss. Background Art
[0002] A bridge-building machine is a construction machine that comes with its own formwork and uses two sets of steel box beams to support the formwork and cast concrete beams hole by hole on site. The first bridge-building machine independently developed in my country was the ZQJ32 / 56 mobile support bridge-building machine developed by the Railway Construction Research and Design Institute in 1992. The bridge-building machine is composed of 87-type railway emergency repair steel beams and some newly made parts. It uses the segment assembly method as the basic construction method. It can assemble single-track railway box beams with a span of 32 to 56 meters. It can also be used for cast-in-place of beam holes or erection of T-beams with a span of less than 32 meters. The obvious advantages of bridge-building machine technology in engineering practice, such as high degree of mechanization, fast construction speed, and high construction quality. On December 12, 2024, the first intelligent cantilever bridge-building machine independently manufactured and produced by the applicant was officially put into use. The event was included in Baidu Encyclopedia.
[0003] In actual engineering practice, there are the following problems: The bridge-building machine in the prior art includes a main truss, on which a jacking cylinder and a counter-jacking wheel are arranged. The upper end of the jacking cylinder can support the wing plate of the beam body. In the actual working process, due to the load-bearing problem caused by the support, the jacking cylinder needs to improve stability. Summary of the invention
[0004] In order to overcome the above problems, the present invention proposes a solution to solve the above multiple problems at the same time.
[0005] The technical solution adopted by the present invention to solve its technical problems is: a main truss, including a bottom beam, a top beam, a connecting beam, a pedestrian pallet, a guardrail, a jacking system, a mounting portion, a hanger, an electrical cabinet, a mounting plate, a pump station, a bottom basket adjusting cylinder, and a line plate; the connecting beam is arranged between the bottom beam and the top beam, and the number of connecting beams is multiple, the pedestrian pallet is installed on the connecting beam, and the pedestrian pallet is provided with a guardrail, and the guardrail is used to protect the operator on the pedestrian pallet, the bottom beam is provided with a mounting portion, the mounting portion is provided with a bottom basket adjusting cylinder, and the top beam is installed with a hanger; the mounting plate is installed on the connecting beam, the pump station and the electrical cabinet are arranged above the mounting plate, and the line plate is installed on the connecting beam; the upper surface of the top beam is provided with a jacking system; the pump station includes a shell, and an oil pump and a control valve are installed in the shell; the electrical cabinet is provided with a power supply and a controller; The jacking system includes the bottom plate, the square oil cylinder, the cylindrical oil cylinder, the anti-top wheel device, and the anti-top wheel oil cylinder; the bottom plate is installed on the upper surface of the top beam, and the square oil cylinder, the cylindrical oil cylinder, and the anti-top wheel device are sequentially arranged on the bottom plate; the anti-top wheel device includes a base, an arm, and an anti-top wheel, the base is installed on the bottom plate, the arm is installed on the base, the upper end of the arm is provided with an anti-top wheel, and the execution end of the anti-top wheel oil cylinder abuts against the arm; The square oil cylinder comprises a square cylinder body, and the square cylinder body has a square cross-section; the cylindrical oil cylinder comprises a first cylindrical cylinder body; the upper surface of the square cylinder body is higher than the upper surface of the first cylindrical cylinder body, the execution end of the square oil cylinder comprises a first abutment block, and the execution end of the cylindrical oil cylinder comprises a second abutment block, when not lifted, the upper surface of the first abutment block is higher than the upper surface of the second abutment block, and the area of the first abutment block is smaller than the area of the second abutment block; The bottom plate is provided with a convex plate portion, the cylindrical oil cylinder is mounted on the convex plate portion, the square oil cylinder is located on one side of the convex plate portion, and the anti-top wheel device is located on the other side of the convex plate portion; a second cylindrical cylinder body is provided at the lower end of the first cylindrical cylinder body, the diameter of the second cylindrical cylinder body is larger than the diameter of the first cylindrical cylinder body, the second cylindrical cylinder body is at least partially embedded in the convex plate portion, and the lower end of the first cylindrical cylinder body is embedded in the convex plate portion; The inner wall of the square cylinder body abuts against the side of the convex plate part; reinforcing ribs are installed on the front and rear sides of the square cylinder body; a connecting hole is provided in the convex plate part, and the connecting hole connects the lower cavity of the square oil cylinder with the lower cavity of the cylindrical oil cylinder, and the upper cavity of the square oil cylinder is connected with the cylindrical oil cylinder through a connecting pipe; the position where the connecting hole is connected to the cylindrical oil cylinder is located on the cylinder wall of the second cylindrical cylinder body. Preferably, the bottom plate is a rectangular plate.
[0006] Preferably, the first cylindrical cylinder body is formed integrally with the second cylindrical cylinder body.
[0007] Preferably, the number of the reinforcing ribs on the front side is two, and the number of the reinforcing ribs on the rear side is two.
[0008] Preferably, the diameter of the first cylindrical cylinder body is smaller than the length of the convex plate portion, and the diameter of the first cylindrical cylinder body is smaller than the width of the convex plate portion.
[0009] Preferably, the diameter of the second cylindrical cylinder body is smaller than the length of the convex plate portion, and the diameter of the second cylindrical cylinder body is smaller than the width of the convex plate portion.
[0010] Preferably, the outer side of the square cylinder body is flush with the outer side of the bottom plate.
[0011] Preferably, after the square oil cylinder, the cylindrical oil cylinder and the anti-top wheel device are installed on the bottom plate, there is still a gap.
[0012] Preferably, the gap is located on the inner side of the anti-top wheel device.
[0013] Preferably, the lower end of the anti-top wheel cylinder is not installed on the base plate.
[0014] The beneficial effects of the present invention are: Invention point 1: In view of the stability problem raised by the background technology, a combination is set up on the basis of the original one jacking cylinder, and two cylinders and a reverse jacking wheel are placed on a bottom plate. The stability is increased through the overall structure.
[0015] There is still some space left on the bottom plate after putting down three devices, which is convenient for adjusting the positions and sizes of the three devices.
[0016] Invention point 2: In response to the stability problem raised by the background technology, a convex plate portion is set on the bottom plate, and the exposed part of the second oil cylinder in the middle is set to be cylindrical, which forms an inverted "T" shape with the bottom plate, thereby increasing stability; and the lower part of the second oil cylinder is embedded in the convex plate portion and the bottom plate, making the structure more stable.
[0017] Invention point three: In response to the stability problem raised by the background technology, the first oil cylinder on the outside is set to be square, which forms an "L"-shaped structure with the bottom plate, thereby increasing the longitudinal stability; the inner side of the square cylinder body of the second oil cylinder abuts against the convex plate part, thereby making it more stable after being subjected to longitudinal force.
[0018] Invention point 4: In response to the stability problem raised by the background technology, the square cylinder body is higher in the natural state, and the abutment block of the actuator is higher, so the actuator is also higher; the cylindrical cylinder body is lower in the natural state, and the abutment block of the actuator is lower, so the actuator is also lower; therefore, the square cylinder can abut the beam wing plate faster during action; since the abutment block at the upper end of the square cylinder is attached with an elastic surface layer (non-flexible), it first abuts against the beam wing plate to provide non-rigid contact during the abutment process, and since the abutment block at the upper end of the cylindrical cylinder has a larger area and higher strength, it provides strength and stability during daily long-term support.
[0019] Invention point five: In response to the stability problem raised by the background technology, on the basis of invention point four, the movements of the two cylinders are further differentiated, and the external oil first enters the lower end of the square cylinder, and then enters the lower end of the cylindrical cylinder through the connecting hole on the convex plate; thus, when lifting, the square cylinder is lifted first; the other end can also first enter the upper end of the square cylinder, and then enter the upper end of the cylindrical cylinder through the connecting pipe. BRIEF DESCRIPTION OF THE DRAWINGS The present invention is further described below in conjunction with the accompanying drawings and embodiments.
[0020] Figure 1 It is a three-dimensional diagram of the main truss of the present invention.
[0021] Figure 2 It is a three-dimensional diagram of the connection between the main truss and the cross beam of the present invention.
[0022] Figure 3 It is a front schematic diagram of the main truss of the present invention.
[0023] Figure 4 It is a schematic side view of the main truss of the present invention.
[0024] Figure 5 It is an enlarged view of the jacking system of the present invention.
[0025] Figure 6 It is a schematic diagram of the oil circuit connection principle between two oil cylinders of the present invention.
[0026] In the figure, the reference numerals are as follows: 1. Bottom beam; 2. Top beam; 3. Connecting beam; 4. Pedestrian pallet; 5. Guardrail; 6. Lifting system; 7. Mounting part; 8. Bottom plate; 9. Gap; 10. Square cylinder; 11. Cylindrical cylinder; 12. First abutment block; 13. Second abutment block; 14. Counter-top wheel device; 15. Counter-top wheel cylinder; 16. Hanger; 17. Electrical cabinet; 18. Mounting plate; 19. Pump station; 20. Bottom basket adjustment cylinder; 21. Wire plate; 22. Convex plate; 23. Second cylindrical cylinder body; 24. Connecting hole; 25. Connecting pipe. DETAILED DESCRIPTION As shown in the figure: a main truss includes a bottom beam, a top beam, a connecting beam, a pedestrian pallet, a guardrail, a jacking system, a mounting part, a hanger, an electrical cabinet, a mounting plate, a pump station, a bottom basket adjustment cylinder, and a line plate; the connecting beam is arranged between the bottom beam and the top beam, and there are multiple connecting beams. The pedestrian pallet is installed on the connecting beam, and a guardrail is arranged on the pedestrian pallet. The guardrail is used to protect the operator on the pedestrian pallet. The bottom beam is provided with a mounting part, and a bottom basket adjustment cylinder is arranged on the mounting part. The top beam is provided with a hanger; wherein the hanger is used to connect the main truss to other equipment; the bottom basket adjustment cylinder is used to adjust the position of the bottom basket under the bridge-building machine system; The mounting plate is mounted on the connecting beam, the pump station and the electrical cabinet are arranged above the mounting plate, and the wiring plate is mounted on the connecting beam; a jacking system is arranged on the upper surface of the top beam; the pump station includes a shell, an oil pump and a control valve are installed in the shell; a power supply and a controller are arranged in the electrical cabinet; The jacking system includes the bottom plate, the square oil cylinder, the cylindrical oil cylinder, the anti-top wheel device, and the anti-top wheel oil cylinder; the bottom plate is installed on the upper surface of the top beam, and the square oil cylinder, the cylindrical oil cylinder, and the anti-top wheel device are sequentially arranged on the bottom plate; the anti-top wheel device includes a base, an arm, and an anti-top wheel, the base is installed on the bottom plate, the arm is installed on the base, the upper end of the arm is provided with an anti-top wheel, and the execution end of the anti-top wheel oil cylinder abuts against the arm; The square oil cylinder comprises a square cylinder body, and the square cylinder body has a square cross-section; the cylindrical oil cylinder comprises a first cylindrical cylinder body; the upper surface of the square cylinder body is higher than the upper surface of the first cylindrical cylinder body, the execution end of the square oil cylinder comprises a first abutment block, and the execution end of the cylindrical oil cylinder comprises a second abutment block, when not lifted, the upper surface of the first abutment block is higher than the upper surface of the second abutment block, and the area of the first abutment block is smaller than the area of the second abutment block; The bottom plate is provided with a convex plate portion, the cylindrical oil cylinder is mounted on the convex plate portion, the square oil cylinder is located on one side of the convex plate portion, and the anti-top wheel device is located on the other side of the convex plate portion; a second cylindrical cylinder body is provided at the lower end of the first cylindrical cylinder body, the diameter of the second cylindrical cylinder body is larger than the diameter of the first cylindrical cylinder body, the second cylindrical cylinder body is at least partially embedded in the convex plate portion, and the lower end of the first cylindrical cylinder body is embedded in the convex plate portion; The inner wall of the square cylinder body abuts against the side of the convex plate part; reinforcing ribs are installed on the front and rear sides of the square cylinder body; a connecting hole is provided in the convex plate part, and the connecting hole connects the lower cavity of the square oil cylinder with the lower cavity of the cylindrical oil cylinder, and the upper cavity of the square oil cylinder is connected with the cylindrical oil cylinder through a connecting pipe; the position where the connecting hole is connected to the cylindrical oil cylinder is located on the cylinder wall of the second cylindrical cylinder body. As shown in the figure: the bottom plate is a rectangular plate. The first cylindrical cylinder body and the second cylindrical cylinder body are formed integrally. The number of reinforcing ribs on the front side is two, and the number of reinforcing ribs on the rear side is two. The diameter of the first cylindrical cylinder body is smaller than the length of the convex plate portion, and the diameter of the first cylindrical cylinder body is smaller than the width of the convex plate portion. The diameter of the second cylindrical cylinder body is smaller than the length of the convex plate portion, and the diameter of the second cylindrical cylinder body is smaller than the width of the convex plate portion. The outer side of the square cylinder body is flush with the outer side of the bottom plate. After the square oil cylinder, cylindrical oil cylinder, and anti-top wheel device are installed on the bottom plate, a gap is still left. The gap is located on the inner side of the anti-top wheel device. The lower end of the anti-top wheel cylinder is not installed on the bottom plate.
[0027] The above detailed description is a specific description of a feasible embodiment of the present invention. The embodiment is not intended to limit the patent scope of the present invention. Any equivalent implementation or modification that does not deviate from the present invention should be included in the patent scope of this case.
Claims
1. A main truss, characterized in that: It includes the bottom beam, the top beam, the connecting beam, the pedestrian pallet, the guardrail, the jacking system, the mounting part, the hanger, the electrical cabinet, the mounting plate, the pump station, the bottom basket adjusting cylinder, and the line plate; the connecting beam is arranged between the bottom beam and the top beam, and there are multiple connecting beams. The pedestrian pallet is installed on the connecting beam, and the pedestrian pallet is provided with a guardrail for protecting the operator on the pedestrian pallet. The bottom beam is provided with a mounting part, and the mounting part is provided with a bottom basket adjusting cylinder, and the top beam is installed with a hanger; the mounting plate is installed on the connecting beam, and the pump station and the electrical cabinet are arranged above the mounting plate, and the line plate is installed on the connecting beam; the upper surface of the top beam is provided with a jacking system; the pump station includes a shell, and an oil pump and a control valve are installed in the shell; the electrical cabinet is provided with a power supply and a controller; The jacking system includes a bottom plate, a square oil cylinder, a cylindrical oil cylinder, an anti-top wheel device, and an anti-top wheel oil cylinder; the bottom plate is installed on the upper surface of the top beam, and the square oil cylinder, the cylindrical oil cylinder, and the anti-top wheel device are sequentially arranged on the bottom plate; the anti-top wheel device includes a base, an arm, and an anti-top wheel, the base is installed on the bottom plate, the arm is installed on the base, the upper end of the arm is provided with an anti-top wheel, and the execution end of the anti-top wheel oil cylinder abuts against the arm; The square oil cylinder comprises a square cylinder body, and the square cylinder body has a square cross-section; the cylindrical oil cylinder comprises a first cylindrical cylinder body; the upper surface of the square cylinder body is higher than the upper surface of the first cylindrical cylinder body, the execution end of the square oil cylinder comprises a first abutment block, and the execution end of the cylindrical oil cylinder comprises a second abutment block, when not lifted, the upper surface of the first abutment block is higher than the upper surface of the second abutment block, and the area of the first abutment block is smaller than the area of the second abutment block; The bottom plate is provided with a convex plate portion, the cylindrical oil cylinder is mounted on the convex plate portion, the square oil cylinder is located on one side of the convex plate portion, and the anti-top wheel device is located on the other side of the convex plate portion; a second cylindrical cylinder body is provided at the lower end of the first cylindrical cylinder body, the diameter of the second cylindrical cylinder body is larger than the diameter of the first cylindrical cylinder body, the second cylindrical cylinder body is at least partially embedded in the convex plate portion, and the lower end of the first cylindrical cylinder body is embedded in the convex plate portion; The inner wall of the square cylinder body abuts against the side of the convex plate part; reinforcing ribs are installed on the front and rear sides of the square cylinder body; a connecting hole is provided in the convex plate part, and the connecting hole connects the lower cavity of the square oil cylinder with the lower cavity of the cylindrical oil cylinder, and the upper cavity of the square oil cylinder is connected with the cylindrical oil cylinder through a connecting pipe; the position where the connecting hole is connected to the cylindrical oil cylinder is located on the cylinder wall of the second cylindrical cylinder body.
2. A main truss according to claim 1, characterized in that: The bottom plate is a rectangular plate.
3. A main truss according to claim 1, characterized in that: The first cylindrical cylinder body is formed integrally with the second cylindrical cylinder body.
4. A main truss according to claim 1, characterized in that: The number of the reinforcing ribs on the front side is two, and the number of the reinforcing ribs on the rear side is two.
5. A main truss according to claim 1, characterized in that: The diameter of the first cylindrical cylinder body is smaller than the length of the convex plate portion, and the diameter of the first cylindrical cylinder body is smaller than the width of the convex plate portion.
6. A main truss according to claim 1, characterized in that: The diameter of the second cylindrical cylinder body is smaller than the length of the protruding plate portion, and the diameter of the second cylindrical cylinder body is smaller than the width of the protruding plate portion.
7. A main truss according to claim 1, characterized in that: The outer side of the square cylinder body is flush with the outer side of the bottom plate.
8. A main truss according to claim 1, characterized in that: After the square oil cylinder, the cylindrical oil cylinder and the anti-top wheel device are installed on the bottom plate, there is still a gap.
9. A main truss according to claim 8, characterized in that: The gap is located on the inner side of the anti-top wheel device.
10. A main truss according to claim 1, characterized in that: The lower end of the anti-top wheel oil cylinder is not installed on the bottom plate.