A rotating and anti-collision mechanism suitable for a caisson soil taking equipment

Abstract

The present application relates to a kind of rotation, anti-collision mechanism suitable for soil taking equipment, comprising: rotating mechanism, anti-collision mechanism, hinge assembly, gas spring, jack, sliding base, sliding base is symmetrically arranged, and it is slidably connected rotating mechanism by chute structure, anti-collision mechanism is installed on sliding base, so that soil taking equipment is freely floating, and effectively prevent soil taking equipment from colliding with well wall;Rotating mechanism's shell outside is equipped with hinge assembly, hinge assembly is connected jack by gas spring, and rotating mechanism is driven by jack, and it is displaced to contact with well wall along the guide rail on sliding base, so as to realize the rotation of soil taking equipment.The present application integrates rotation adjustment and positioning anti-collision function, and can realize the flexible rotation of soil taking equipment in open caisson operation at multiple angles and posture stability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of open caisson construction, especially to a non-draining open caisson process with underwater sinking, and in particular to a soil taking equipment mechanism integrating rotary driving and elastic anti-collision. BACKGROUND

[0002] With the change of the times, the depth required by the open caisson project gradually increases, and the traditional self-weight sinking process often fails to sink at a depth of 20-30 meters. Therefore, many deep well projects use soil taking equipment for construction. According to different construction processes, soil taking equipment is divided into various types.

[0003] At present, various types of open caisson soil taking equipment generally have the following technical difficulties: on the one hand, the existing rotary structure adopts the mechanism form of rotary bearing. This form has technical difficulties such as high cost, difficult maintenance, large structure, high energy consumption, or the need for large-scale lifting equipment to cooperate at any time. On the other hand, the anti-collision method relies on sensors, fixed jacks, and other methods. When operating in water, the sensor is prone to failure; when the open caisson settles unevenly, the required jack stroke is difficult to estimate, and the anti-collision structure cannot self-adaptively compensate for the position deviation, resulting in mechanical failure.

[0004] In the prior art, such as patent document CN113235599A, a rotary moving pressurizing device for open caisson construction is adopted, which uses a rotary pressurizing device with a turntable type, but needs an external ground fixed base, cannot adapt to the position change of the well wall during the sinking process of the open caisson, and relies on hydraulic cylinders for loading, which has a large structure. The traditional soil taking equipment uses rotary bearing to rotate, which has high energy consumption and requires disassembly of the entire machine for maintenance; the anti-collision uses fixed stroke jacks, which are prone to failure when the open caisson settles unevenly.

[0005] The present application is applicable to the non-draining open caisson construction process with underwater sinking. The soil taking equipment as the core equipment needs to adjust the soil taking position and angle in real time according to the attitude of the open caisson during the operation process, and needs to maintain a stable working state during fixed point soil taking. Therefore, the rotation adjustment precision and anti-collision reliability of the equipment have high requirements.

[0006] In view of the above problems, a mechanism with practicality, flexible rotation, stable self-adaptive anti-collision function is developed, which is the key to improving the operation efficiency and safety of the open caisson soil taking equipment. The present application innovatively designs a cooperative structure of rotary driving and elastic anti-collision, which can effectively solve the above technical difficulties and provide important technical support for the intelligentization and high efficiency of open caisson construction. SUMMARY

[0007] The present application provides a rotary anti-collision mechanism applicable to open caisson soil taking equipment. The mechanism integrates rotary adjustment and positioning anti-collision functions through innovative structural design, and can realize flexible rotation and attitude stability of the soil taking equipment during open caisson operation.

[0008] To achieve the above object, the technical scheme of the present application is: a rotating and anti-collision mechanism suitable for a soil taking device, comprising: a rotating mechanism, an anti-collision mechanism, a hinge assembly, an air spring, a jack, and a sliding base, the sliding base is symmetrically arranged, is connected to the rotating mechanism through a sliding groove structure, and the anti-collision mechanism is arranged on the sliding base to enable the soil taking device to freely float and effectively prevent the soil taking device from colliding with a well wall; the hinge assembly is installed on the outside of the shell of the rotating mechanism, the hinge assembly is connected to the jack through the air spring, the jack drives the rotating mechanism to make radial displacement along the guide rail on the sliding base and is in contact with the well wall, so that the soil taking device is rotated.

[0009] Further, the sliding base serves as a basic installation carrier and is used to install and fix the rotating mechanism and the anti-collision mechanism.

[0010] Further, the anti-collision mechanism comprises a longitudinal wheel on the left side which is in direct contact with the open caisson, and the longitudinal wheel structure enables the soil taking device to freely float and effectively prevents the soil taking device from colliding with the well wall; and a power element on the right side which drives the square tube to move through the jack and the air spring and makes the longitudinal wheel in contact with the well wall.

[0011] Further, the rotating mechanism comprises a power element on the upper side and a motor and a speed reducer which are installed on a sliding plate to provide rotating power; and an execution element on the lower side which is composed of a support, a seal, a bearing, and a tire, and when the tire is in contact with the well wall of the open caisson, the tire generates a rotating force to drive the soil taking device to rotate.

[0012] Further, the hinge assembly is installed on the outside of the shell of the rotating mechanism and is connected to the front end of the air spring through a high-strength pin shaft.

[0013] Further, the air spring is integrated on the rotating mechanism and the anti-collision mechanism, can adaptively adjust the anti-collision distance, realizes a buffering and damping effect, ensures the stability of the device during operation, and improves the impact resistance.

[0014] Further, the jack is integrated on the rotating mechanism and the anti-collision mechanism, is connected to the air spring on the left side, and is used to make the rotating mechanism and the anti-collision mechanism in contact with the well wall of the open caisson to make them function.

[0015] A soil taking device for an open caisson, which integrates the rotating and anti-collision mechanism according to any one of claims 1-7.

[0016] A method for operating the rotating and anti-collision mechanism, comprising:

[0017] Step S1: when the soil taking device is started, the jack on the rotating mechanism pushes the tire to be in contact with the well wall;

[0018] Step S2: the motor drives the tire to rotate through the speed reducer, and then drives the entire soil taking device to rotate to a target position;

[0019] Step S3: the jack on the rotating mechanism retracts, the jack piston rod of the anti-collision mechanism extends, the air spring, square tube and wheel assembly are pushed to translate outward until the longitudinal wheel is in close abutment with the caisson wall.

[0020] Further, if the earth taking equipment needs to be moved again, the jack piston rod of the anti-collision mechanism is simply retracted to separate the longitudinal wheel from the wall, and the above-mentioned flow cycle operation can be performed.

[0021] Compared with the prior art, the beneficial effects of the present application are:

[0022] By adopting the above technical scheme, the rotating adjustment and positioning anti-collision functions are integrated, the flexible rotation and posture stability of the earth taking equipment in the caisson operation can be realized. The beneficial effects that can be produced are: 1. small structure; 2. low manufacturing cost; 3. easy maintenance; 4. low energy consumption; 5. no need for large-scale hoisting equipment to cooperate with the operation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is the front view of the rotating and anti-collision mechanism suitable for the earth taking equipment of the present application;

[0024] Figure 2 is the top view of the rotating and anti-collision mechanism suitable for the earth taking equipment of the present application;

[0025] Figure 3 is the main sectional view of the rotating mechanism of the present application;

[0026] Figure 4 is the left sectional view of the rotating mechanism of the present application

[0027] Figure 5 is the front view of the anti-collision mechanism of the present application;

[0028] Figure 6 is the top view of the anti-collision mechanism of the present application. DETAILED DESCRIPTION

[0029] The present application will be further described below in combination with the drawings.

[0030] As Figures 1 to 6As shown, the present invention provides a rotating and anti-collision mechanism for soil sampling equipment, comprising: a rotating mechanism 1, an anti-collision mechanism 2, a sliding base 3, a hinge assembly 4, a jack (hydraulic cylinder) 5, and a gas spring 6. The sliding base 3 is symmetrically arranged and slidably connected to the rotating mechanism 1 via a sliding groove structure. The anti-collision mechanism 2 is mounted on the sliding base 3, allowing the soil sampling equipment to float freely and effectively preventing it from colliding with the well wall. A hinge assembly 4 is installed on the outer side of the housing 1-4 of the rotating mechanism 1, connecting the rotating mechanism 2 and the gas spring 6. The rear end of the gas spring 6 is connected to the jack (hydraulic cylinder) 5. The jack (hydraulic cylinder) 5 can drive the rotating mechanism 2, causing it to move radially along the guide rail on the sliding base 3, pushing it to contact the well wall, thereby realizing the rotating function of the soil sampling equipment.

[0031] Sliding base 3: Serves as the basic installation carrier, and is used to install and fix the rotating mechanism and the anti-collision mechanism.

[0032] Anti-collision mechanism 2 consists of longitudinal wheels 2-1, square tubes 2-2, connecting frames 2-3, positioning plates 2-4, jacks (cylinders) 5, and gas springs 6. The longitudinal wheels 2-1 are on the left, directly contacting the caisson. Their structure allows the soil-removing equipment to float freely and effectively prevents collisions with the caisson wall. The power element on the right drives the square tubes 2-2 via the jacks (cylinders) 5 and gas springs 6, pushing the longitudinal wheels 2-1 against the caisson wall. The gas spring assembly provides adaptive anti-collision and shock absorption functions.

[0033] Rotating Mechanism 1: The upper part is the power element, with the electric motor 1-1 and the reducer 1-2 mounted on a sliding plate 1-5 to provide rotational power. The lower part is the actuator, which consists of a bracket 1-6, a seal 1-7, a bearing 1-8, a tire 1-3, and other components. When the tire 1-3 contacts the caisson wall, it can generate rotational force, driving the soil extraction equipment to rotate.

[0034] Hinge assembly 4: Installed on the outside of the housing 1-4 of the rotating mechanism 1, and connected to the front end of the gas spring by a high-strength pin.

[0035] Gas spring 6: Integrated into the rotating mechanism 1 and the anti-collision mechanism 2, it can adaptively adjust the anti-collision distance to achieve a buffering and shock absorption effect, ensure the stability of the equipment during operation, and improve the impact resistance.

[0036] Jack (cylinder) 5: Integrated on the rotating mechanism 1 and the anti-collision mechanism 2, with a gas spring 6 connected on the left side, used to push the rotating mechanism 1 and the anti-collision mechanism 2 onto the well wall so that they can perform their functions.

[0037] When the device needs to be used:

[0038] (1) According to Figure 3 As shown in Figure 4, assemble the motor, reducer, sliding plate, bearing, seal, tire, and other components as shown in the figure.

[0039] (2) After the above installation is completed, the jack, the gas spring, the positioning plate, the square tube and the longitudinal wheel are assembled according to the figure shown in 6. Figure 5

[0040] (3) After the above installation is completed, the anti-collision mechanism is installed to the sliding base according to 2. Figure 1

[0041] (4) When the soil taking equipment needs to be started, the operation steps are as follows: first, confirm that the equipment is in the initial position shown in 2, at this time, the driving piston rod of the jack is in the extended state, through the linkage action of the gas spring, the rotating mechanism is pushed to slide outward along the sliding groove until the tire is completely attached to the caisson wall; then start the motor, drive the tire to rotate through the transmission of the speed reducer, and then drive the whole soil taking equipment to rotate; after the soil taking equipment moves to the target soil taking position, the motor is turned off, and the piston rod of the jack is controlled to retract; after the above action is completed, the piston rod of the jack of the anti-collision mechanism is extended, the gas spring, the square tube and the wheel assembly are pushed to translate outward until the longitudinal wheel is tightly abutted with the caisson wall; if the equipment needs to be moved again, the piston rod is only retracted to separate the longitudinal wheel from the wall, and the above process can be operated in a cycle. Figure 1

[0042] The core innovation point of the application is that the rotating adjustment and positioning and anti-collision functions are integrated, the soil taking equipment can be flexibly rotated at multiple angles and the posture is stable in the caisson operation. The rotating mechanism and the anti-collision mechanism are integrated through the sliding base, the rotating force is generated by the tire contacting the wall, and the anti-collision distance is self-adaptively adjusted by the linkage of the gas spring and the jack.​​​

Claims

1. A rotating and anti-collision mechanism suitable for caisson soil extraction equipment, characterized in that, include: The system comprises a rotating mechanism, an anti-collision mechanism, a hinge assembly, a gas spring, a jack, and a sliding base. The sliding base is symmetrically arranged and slidably connected to the rotating mechanism via a sliding groove structure. An anti-collision mechanism is mounted on the sliding base, allowing the soil-removing equipment to float freely and effectively preventing it from colliding with the well wall. A hinge assembly is installed on the outer side of the rotating mechanism's housing. This assembly is connected to the jack via a gas spring. The jack drives the rotating mechanism, radially displacing it along the guide rails on the sliding base until it contacts the well wall, thus rotating the soil-removing equipment to the target position. The anti-collision mechanism consists of a longitudinal wheel on the left, which directly contacts the well. This longitudinal wheel structure allows the soil-removing equipment to float freely and effectively prevents it from colliding with the well wall. The power element on the right moves a square tube via a jack and gas spring, pushing the longitudinal wheel against the well wall. Rotation mechanism: The upper part is the power element, with the electric motor and reducer mounted on a sliding plate to provide rotational power; the lower part is the actuator, consisting of a bracket, seal, bearing, and tire. When the tire contacts the caisson wall, it generates rotational force, driving the soil removal equipment to rotate to the target position.

2. The rotating and anti-collision mechanism for caisson soil extraction equipment according to claim 1, characterized in that, Sliding base: Serves as the basic installation carrier, and plays a role in installing and fixing the rotating mechanism and the anti-collision mechanism.

3. The rotating and anti-collision mechanism for caisson soil extraction equipment according to claim 1, characterized in that, Hinge assembly: Installed on the outside of the rotating mechanism housing, it is connected to the front end of the gas spring by a high-strength pin.

4. The rotation and anti-collision mechanism for caisson soil extraction equipment according to claim 1, characterized in that, Gas spring: Integrated into the rotating mechanism and anti-collision mechanism, it can adaptively adjust the anti-collision distance to achieve buffering and shock absorption, ensure the stability of the equipment during operation, and improve impact resistance.

5. The rotating and anti-collision mechanism for caisson soil extraction equipment according to claim 1, characterized in that, Jack: Integrated into the rotating mechanism and anti-collision mechanism, with a gas spring connected to the left side, used to push the rotating mechanism and anti-collision mechanism against the well wall so that they can function.

6. A soil extraction device for caissons, characterized in that: The rotating and anti-collision mechanism as described in any one of claims 1-5 is integrated.

7. A method of using the rotating, anti-collision mechanism according to any one of claims 1-5, characterized in that, include: Step S1: When the soil removal equipment is activated, the jacks on the rotating mechanism push the tires to fit against the well wall; Step S2: The electric motor drives the tires to rotate through the reducer, thereby driving the entire soil-boring equipment to rotate to the target position; Step S3: The jack on the rotating mechanism retracts, and the piston rod of the jack on the anti-collision mechanism extends, pushing the gas spring, square tube and wheel assembly to move outward until the longitudinal wheel is in close contact with the caisson wall.

8. The method according to claim 7, characterized in that: If the soil extraction equipment needs to be moved again, simply retract the jack piston rod of the anti-collision mechanism to separate the longitudinal wheel from the well wall, and then repeat the above process.

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