Trestle with intelligent regulation and control function

Abstract

The utility model relates to the technical field of tunnel construction, in particular to a trestle with an intelligent regulation and control function, which comprises a trestle main body and a regulation and control system, a front lifting support device is arranged at the front end part of the trestle main body, a trestle walking device is arranged at the rear end part of the trestle main body, and the front lifting support device comprises a front fixed support leg and a front movable support leg. A pressure sensor is arranged at the lower end of the front movable supporting leg and is in signal connection with the regulation and control system; the front lifting supporting device further comprises driving equipment used for driving the front movable supporting legs to ascend and descend, and the driving equipment is in signal connection with the regulation and control system. Due to the arrangement of the pressure sensor and the regulation and control system, when the front end of the trestle main body sinks, the regulation and control system can control the driving equipment to operate, so that the front movable supporting leg descends, the sinking amount of the front end of the trestle main body is compensated, and the problem that the front end of the trestle main body sinks due to the sinking of the bottom surface of the pressing position of the front movable supporting leg can be effectively solved. And the front end of the trestle main body sinks.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction, in particular to a trestle with intelligent control function. Background Art

[0002] During the tunnel construction process, the existing trestles are mainly erected above the excavated ground to facilitate the construction workers to pass through and the construction vehicles to transport building materials over the trestles.

[0003] The existing trestle main body support structure comprises a front lifting leg arranged at the front end of the trestle main body for supporting the front end of the trestle, a trestle walking device arranged at the bottom of the rear end of the trestle main body for supporting the rear end of the trestle, and a middle lifting support capable of moving along the length direction of the trestle main body for cooperating with the trestle walking device to move the trestle main body. For example, a self-propelled tunnel inverted arch steel arch frame construction trestle disclosed in a Chinese patent with publication number CN213574119U specifically discloses that the front lifting legs include lifting legs symmetrically arranged on both sides of the trestle main beam, an enlarged support is arranged at the bottom of the lifting legs, and the lifting mechanism of the lifting legs is a hydraulic cylinder. Specifically, the lifting legs include a fixed leg and a movable leg, the fixed leg is fixedly connected to the trestle main beam, and the relative position between the fixed leg and the movable leg is adjusted by the hydraulic cylinder. However, when the existing trestles are in use, they are generally put into use after being in a basically horizontal state by cooperating with the front lifting legs and the trestle walking device (the trestle walking device is located on the constructed roadbed (hard ground), and the front lifting legs are located on the unconstructed or under-construction roadbed (soft ground)); however, it is found during use that when construction vehicles pass the trestles many times, the front end of the trestles may sink. If the above situation is not discovered, when the fully loaded construction vehicles move the front end of the trestles, the front end of the trestles is prone to a rapid sinking reaction, thereby increasing the probability of safety accidents.

[0004] To this end, we designed a trestle with intelligent control function. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses a trestle with intelligent control function.

[0006] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0007] A trestle with intelligent control function, comprising a trestle body and a control system, wherein a front lifting support device is provided at the front end of the trestle body, a trestle walking device is provided at the rear end of the trestle body, the front lifting support device comprises a front fixed leg and a front movable leg, and a pressure sensor is provided at the lower end of the front movable leg, and the pressure sensor is connected to the control system signal;

[0008] The front lifting support device also includes a driving device for driving the front movable legs to lift and lower, and the driving device is connected to the control system signal.

[0009] Preferably, a pad is provided under the pressure sensor.

[0010] Preferably, the upper surface of the pad is provided with a sleeve which is sleeved on the lower end of the front movable leg, and the upper end of the sleeve is sealingly and movably matched with the front movable leg.

[0011] Preferably, a rubber ring is embedded in the inner cavity of the upper end portion of the sleeve, and the rubber ring seals and movably cooperates with the front movable leg.

[0012] Preferably, the trestle body is provided with an angle detection module for detecting its inclination angle, and the angle detection module is connected to the control system signal.

[0013] Preferably, it also includes a middle lifting support device, and track beams for the middle lifting support device to travel are provided on both sides of the trestle body;

[0014] The middle lifting support device has a driving component for driving it to move and a position detection module for detecting its position, and both the driving component and the position detection module are connected to the control system signal;

[0015] The trestle bridge body is provided with scales from the front end to the rear end thereof, so as to detect the length dimension of the trestle bridge body erected above the excavated ground.

[0016] Preferably, the driving assembly comprises a driving motor, the output shaft fixing sleeve of the driving motor is provided with a driving gear, and the trestle body is provided with a rack matching the driving gear along its length direction.

[0017] Preferably, the driving assembly also includes a motor mounting seat, both ends of the motor mounting seat are correspondingly hinged with the upper ends of the connecting rods, and the lower ends of the two connecting rods are slidably connected to the fixed part of the middle lifting support device along the length direction of the motor mounting seat, and a tension spring is provided between the lower ends of the two connecting rods to facilitate the tendency of the motor mounting seat to approach the trestle body, thereby making the driving gear and the rack tightly meshed.

[0018] Preferably, the front movable leg comprises a first front movable leg and a second front movable leg correspondingly located behind the first front movable leg, and the second front movable leg is arranged to be inclined up and down, and the lower end of the second front movable leg is correspondingly located behind the upper end thereof;

[0019] The pressure sensor is disposed at the lower ends of the first front movable leg and the second front movable leg.

[0020] Preferably, the trestle body is T-shaped, the top surface of the wing of the trestle body is provided with a vehicle track for construction vehicles to pass through, and the belly of the trestle body is provided with a personnel passage for construction personnel to pass through.

[0021] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0022] 1. Due to the setting of the pressure sensor and the control system, when the front end of the trestle body sinks, the control system can control the operation of the driving device to make the front movable legs descend and compensate for the sinking of the front end of the trestle body, which can effectively solve the problem of sinking of the front end of the trestle body due to the sinking of the bottom surface of the downward pressure position of the front movable legs;

[0023] 2. Due to the setting of the pad and the sleeve, the space where the pressure sensor is located can be relatively sealed to prevent the pressure sensor from being eroded by soil after the lower end of the front movable leg sinks into the ground, thus affecting the pressure sensor detection operation;

[0024] 3. Due to the setting of the angle detection module, combined with the pressure sensor and the control system, the control system can control the descent of the front movable leg according to the feedback signal of the pressure sensor and the feedback signal of the angle detection module, so as to prevent the movable leg from compensating for the insufficient or excessive sinking of the front end of the trestle body, thereby ensuring that the trestle body is always in a horizontal posture;

[0025] 4. Since the position detection module and the trestle body have scale settings, the length of the trestle body erected above the excavated ground can be known by observing the scale, and the middle lifting support device can be located in the middle of the area where the trestle body is located above the excavated ground, so that the front lifting support device and the middle lifting support device can jointly support the trestle body under balanced force, thereby reducing the force on the front lifting support device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the main structure of the trestle in the utility model;

[0028] Figure 3 It is a partial cross-sectional view of the front movable leg and the pad in the utility model;

[0029] Figure 4 It is a structural schematic diagram of the driving component in the utility model;

[0030] Figure 5 This is a control flow chart of the utility model.

[0031] In the figure: 1. trestle body; 11. track beam; 12. rack; 13. vehicle track; 14. personnel passage; 2. front lifting support device; 21. front fixed support leg; 22. front movable support leg; 221. first front movable support leg; 222. second front movable support leg; 23. driving device; 3. trestle walking device; 4. pressure sensor; 5. control system; 6. pad; 61. sleeve; 62. rubber ring; 7. angle detection module; 8. middle lifting support device; 81. driving assembly; 811. driving motor; 812. driving gear; 813. motor mounting seat; 814. connecting rod; 815. tension spring; 82. position detection module. DETAILED DESCRIPTION

[0032] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. to indicate directions or positional relationships, they only correspond to the drawings of the present application, in order to facilitate the description of the present invention; it should be understood that if there are terms such as "end", "side", "end part", "lateral", "lateral", "transverse", "longitudinal", etc. to indicate directions or positional relationships, they only correspond to the length and width of the corresponding parts, that is, "end part" indicates the head and tail areas in the length direction of the corresponding part, and "side part" indicates the head and tail areas in the width direction of the corresponding part; this is for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction.

[0033] Embodiment 1, in combination with the attached Figure 1-5 A trestle with intelligent control function, comprising a trestle body 1 and a control system 5, a front lifting support device 2 is provided at the front end of the trestle body 1, a trestle walking device 3 is provided at the rear end of the trestle body 1, the front lifting support device 2 comprises a front fixed leg 21 and a front movable leg 22, and a pressure sensor 4 is provided at the lower end of the front movable leg 22, and the pressure sensor 4 is connected to the control system 5 by signal;

[0034] The front lifting support device 2 also includes a driving device 23 for driving the front movable legs 22 to lift and lower, and the driving device 23 is connected to the control system 5 by signals. The driving device 23 can be a hydraulic cylinder as required.

[0035] Due to the arrangement of the pressure sensor 4 and the control system 5, when the front end of the trestle body 1 sinks, the control system 5 can control the driving device 23 to operate, so that the front movable leg 22 descends and compensates for the sinking of the front end of the trestle body 1, which can effectively solve the problem of sinking of the front end of the trestle body 1 due to the ground subsidence at the downward pressure position of the front movable leg 22. Specifically, when the fully loaded construction vehicle moves from the rear end to the front end of the trestle body 1, the center of gravity of the trestle body 1 and the construction vehicle assembly gradually shifts toward the front end of the trestle body 1. At this time, the pressure value detected by the pressure sensor 4 should theoretically increase gradually (the pressure value change is related to the walking speed of the construction vehicle). When the pressure value change detected by the pressure sensor 4 is abnormal (the pressure value increase speed suddenly decreases, the pressure value remains unchanged or even decreases), it means that the front end of the trestle body 1 begins to sink or has a sinking trend. At this time, the control system 5 can control the driving device 23 to operate, so that the front movable leg 22 descends again, and the sinking of the trestle body 1 is compensated by the descent of the front movable leg 22, ensuring that the front movable leg 22 lands firmly.

[0036] As required, a pad 6 is provided under the pressure sensor 4 to increase the ground contact area of ​​the front movable leg 22 .

[0037] In some possible embodiments, the front movable leg 22 may include a first front movable leg 221 and a second front movable leg 222 correspondingly located behind the first front movable leg 221, and the second front movable leg 222 is arranged to be inclined up and down, and the lower end of the second front movable leg 222 is correspondingly located behind its upper end; this can increase the strength of the front lifting support device 2.

[0038] Pressure sensors 4 are provided at the lower ends of the first front movable leg 221 and the second front movable leg 222 .

[0039] In some possible embodiments, the trestle body 1 is T-shaped, a vehicle track 13 for construction vehicles to pass through is provided on the top surface of the wing of the trestle body 1, and a personnel passage 14 for construction workers to pass through is provided in the belly of the trestle body 1; this can achieve the separation of people and vehicles.

[0040] Embodiment 2, combined with the attached Figure 1-5 , a trestle with intelligent control function, based on the first embodiment, in order to prevent the lower end of the front movable leg 22 from sinking into the ground, causing the pressure sensor 4 to be eroded by soil and affecting the detection operation of the pressure sensor 4, the upper plate surface of the pad 6 is provided with a sleeve 61 sleeved on the lower end of the front movable leg 22, and the upper end of the sleeve 61 is sealed and movably matched with the front movable leg 22; it should be noted that the sealed and movable match can be understood as a small gap or a seamless match.

[0041] Furthermore, a rubber ring 62 is embedded in the inner cavity of the upper end of the sleeve 61 , and the rubber ring 62 is sealingly and movably matched with the front movable leg 22 .

[0042] Embodiment 3, in combination with the attached Figure 1-5 , a pier with intelligent control function, based on the first or second embodiment, the pier body 1 is provided with an angle detection module 7 for detecting its inclination angle, and the angle detection module 7 is connected to the control system 5 by signal;.

[0043] As required, the angle detection module 7 may adopt existing devices capable of detecting tilt angles, such as a gyroscope and an angle detection sensor.

[0044] In this way, through the cooperation between the angle detection module 7 and the pressure sensor 4, the control system 5 can control the descent of the front movable legs 22 according to the feedback signal of the pressure sensor 4 and the feedback signal of the angle detection module 7 to ensure that the trestle body 1 is always in a horizontal posture.

[0045] Embodiment 4, in combination with the attached Figure 1-5 , a trestle with intelligent control function, based on any one of the first to third embodiments, further comprising a middle lifting support device 8, and track beams 11 for the middle lifting support device 8 to travel are provided on both sides of the trestle body 1;

[0046] The middle lifting support device 8 has a driving component 81 for driving it to move and a position detection module 82 for detecting its position. Both the driving component 81 and the position detection module 82 are connected to the control system 5 by signals. The position detection module 82 can be a sensor as needed.

[0047] The trestle body 1 is provided with scales from its front end to the rear end, so that the length of the trestle body 1 erected above the excavated ground can be known by observing the scales, and the middle lifting support device 8 can be located in the middle of the area where the trestle body 1 is located above the excavated ground, so that the front lifting support device 2 and the middle lifting support device 8 can jointly support the trestle body 1 under balanced force, thereby reducing the force on the front lifting support device 2.

[0048] Specifically, the middle lifting support device 8 also has fixed legs and movable legs.

[0049] Furthermore, the driving assembly 81 includes a driving motor 811, and a driving gear 812 is fixedly mounted on the output shaft of the driving motor 811. The trestle body 1 is provided with a rack 12 along its length direction that cooperates with the driving gear 812. At this time, the position detection module 82 can be an encoder connected to the output shaft of the driving motor 811. By detecting the number of rotations of the output shaft of the driving motor 811, the position of the middle lifting support device 8 relative to the length direction of the trestle body 1 can be obtained.

[0050] Furthermore, the driving assembly 81 also includes a motor mounting seat 813, both ends of the motor mounting seat 813 are correspondingly hinged with the upper ends of the connecting rods 814, and the lower ends of the two connecting rods 814 are slidably connected to the fixed part of the middle lifting support device 8 along the length direction of the motor mounting seat 813, and a tension spring 815 is provided between the lower ends of the two connecting rods 814 to facilitate the tendency of the motor mounting seat 813 to approach the trestle body 1, thereby making the driving gear 812 and the rack 12 tightly meshed; such an arrangement can pull the connecting rod 814 through the tension spring 815, so that the angle between the two connecting rods 814 becomes smaller, thereby making the motor mounting seat 813 close to the trestle body 1, ensuring that the driving gear 812 and the rack 12 are always tightly meshed, that is, when the middle lifting support device 8 is moving along the length direction of the trestle body 1, or when the middle lifting support device 8 is moving the trestle body 1 after landing, and when the driving gear 812 and the rack 12 are worn, it can ensure that the driving gear 812 and the rack 12 are tightly meshed.

[0051] It should be noted that the lower end of the connecting rod 814 can be slidably connected to the fixed part of the middle lifting support device 8 along the top of the motor mounting seat 813, and can also rotate relative to the fixed part of the middle lifting support device 8; according to needs, the lower end of the connecting rod 814 can be hinged with a slider to improve the sliding connection between the slider and the fixed part of the middle lifting support device 8. At this time, the tension spring 815 can be arranged between the two sliders corresponding to the lower ends of the two connecting rods 814.

[0052] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A pier with intelligent control function, comprising a pier body (1) and a control system (5), characterized in that: The front end of the trestle body (1) is provided with a front lifting support device (2), and the rear end of the trestle body (1) is provided with a trestle walking device (3), the front lifting support device (2) comprises a front fixed support leg (21) and a front movable support leg (22), and a pressure sensor (4) is provided at the lower end of the front movable support leg (22), and the pressure sensor (4) is connected to the control system (5) by signal. The front lifting support device (2) further comprises a driving device (23) for driving the front movable support leg (22) to lift and lower, and the driving device (23) is connected to the control system (5) by signal.

2. The trestle with intelligent control function according to claim 1, characterized in that: A backing plate (6) is provided below the pressure sensor (4).

3. The trestle with intelligent control function according to claim 2, characterized in that: The upper plate surface of the pad (6) is provided with a sleeve (61) sleeved on the lower end of the front movable leg (22), and the upper end of the sleeve (61) is sealingly and movably matched with the front movable leg (22).

4. The trestle with intelligent control function according to claim 3, characterized in that: A rubber ring (62) is embedded in the inner cavity of the upper end portion of the sleeve (61), and the rubber ring (62) seals and movably cooperates with the front movable leg (22).

5. The trestle with intelligent control function according to claim 1, characterized in that: The trestle body (1) is provided with an angle detection module (7) for detecting its tilt angle, and the angle detection module (7) is connected to the control system (5) by signal.

6. The trestle with intelligent control function according to claim 1, characterized in that: It also includes a middle lifting support device (8), and track beams (11) for the middle lifting support device (8) to travel are provided on both sides of the trestle body (1); The middle lifting support device (8) comprises a driving component (81) for driving the middle lifting support device to move and a position detection module (82) for detecting the position of the middle lifting support device, wherein the driving component (81) and the position detection module (82) are both connected to the control system (5) by signals; The trestle bridge body (1) is provided with scales from its front end to its rear end, so as to facilitate detection of the length of the trestle bridge body (1) erected above the excavated ground.

7. The trestle with intelligent control function according to claim 6, characterized in that: The driving assembly (81) comprises a driving motor (811), the output shaft fixing sleeve of the driving motor (811) is provided with a driving gear (812), and the trestle body (1) is provided with a rack (12) matching the driving gear (812) along its length direction.

8. The trestle with intelligent control function according to claim 7, characterized in that: The driving assembly (81) further comprises a motor mounting seat (813), both ends of which are hinged with corresponding upper ends of connecting rods (814), and the lower ends of the two connecting rods (814) are slidably connected to the fixed part of the middle lifting support device (8) along the length direction of the motor mounting seat (813), and a tension spring (815) is provided between the lower ends of the two connecting rods (814) to facilitate the tendency of the motor mounting seat (813) to approach the trestle body (1), thereby allowing the driving gear (812) to be tightly meshed with the rack (12).

9. The trestle with intelligent control function according to claim 1, characterized in that: The front movable leg (22) comprises a first front movable leg (221) and a second front movable leg (222) correspondingly located behind the first front movable leg (221), and the second front movable leg (222) is arranged to be inclined up and down, and the lower end of the second front movable leg (222) is correspondingly located behind the upper end thereof; The pressure sensor (4) is provided at the lower end of each of the first front movable supporting leg (221) and the second front movable supporting leg (222).

10. The trestle with intelligent control function according to claim 1, characterized in that: The trestle bridge body (1) is T-shaped, and a vehicle track (13) for construction vehicles to pass through is provided on the top surface of the wing of the trestle bridge body (1), and a personnel passage (14) for construction personnel to pass through is provided on the belly of the trestle bridge body (1).

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