A kind of outrigger platform leveling device and method thereof

Abstract

The present invention discloses an outrigger platform leveling device and method thereof, and relates to the technical field of loading platform. Firstly, the first outrigger oil cylinder, the second outrigger oil cylinder, the third outrigger oil cylinder and the fourth outrigger oil cylinder rise simultaneously, and stop rising when the hydraulic oil pressure at the oil pump outlet is equal to the pressure threshold value. At this time, the thrust of all the oil cylinders is close to the gravity of the bearing platform, specifically 80% of the gravity of the bearing platform, so that all the oil cylinders can be put on the ground at the fastest speed, effectively avoiding the occurrence of virtual position, greatly saving working time, and when leveling the bearing platform, two oil cylinders located on the same side rise simultaneously, which is equivalent to three-point plane determination, and there will be no problem of a single oil cylinder having no actual force, thereby avoiding the virtual position problem caused by the action of only one oil cylinder. The device has the advantages of simple installation, high precision and rapid leveling, and greatly improves the convenience of the entire outrigger platform leveling device.

Description

Technical Field

[0001] The invention relates to the technical field of loading platforms, and in particular to a leg platform leveling device and a method thereof. Background Art

[0002] When installing or using high-end equipment, high requirements are placed on the horizontal accuracy of the ground. Insufficient horizontal accuracy will seriously affect the performance and use of the equipment, especially some vehicle-mounted analysis equipment, such as equipment for analyzing the slope and flatness of the ground, and radar, etc. These devices need to be installed through the installation platform to ensure the horizontal accuracy of these devices. At present, traditional installation platforms have problems such as complex installation, low accuracy, long leveling time, and frequent empty positions, which are very inconvenient to use. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a leg platform leveling device, including a bearing platform, and also including

[0004] The inclination sensor is used to measure the inclination of the platform in real time. It is installed on the platform. The X-axis and Y-axis of the inclination sensor are parallel to the X-axis and Y-axis of the platform respectively. The angle of the X-axis of the platform is v, and the angle of the Y-axis is j.

[0005] The first outrigger oil cylinder, the second outrigger oil cylinder, the third outrigger oil cylinder and the fourth outrigger oil cylinder are symmetrically arranged at the four corners of the bearing platform, the first outrigger oil cylinder and the second outrigger oil cylinder are respectively arranged on both sides of the X-axis direction, and the first outrigger oil cylinder and the third outrigger oil cylinder are respectively arranged at the diagonal positions of the bearing platform, and the first outrigger oil cylinder, the second outrigger oil cylinder, the third outrigger oil cylinder and the fourth outrigger oil cylinder are all provided with stop valves;

[0006] The oil tank and the oil pump are used to supply oil to the first outrigger oil cylinder, the second outrigger oil cylinder, the third outrigger oil cylinder and the fourth outrigger oil cylinder at the same time;

[0007] The pressure sensor is used to detect the pressure of the hydraulic oil at the outlet of the oil pump in real time;

[0008] The main control module is electrically connected to the inclination sensor, the three-position four-way hydraulic reversing valve and the pressure sensor respectively, and a pressure threshold is preset so that when the hydraulic oil pressure at the outlet of the floating pump reaches the pressure threshold, the thrust of all cylinders is equal to 75%-85% of the platform gravity. The pressure value of the hydraulic oil at the outlet of the oil pump is read, and a cut-off signal is output when the pressure value of the hydraulic oil at the outlet of the oil pump is greater than or equal to the pressure threshold; the first inclination threshold and the second inclination threshold are preset, the first inclination threshold is set to 1-5 degrees, and the second inclination threshold is set to 0.01-1 degree, and the angle v and angle are read. j, and respectively compare with the first inclination angle threshold and the second inclination angle threshold, when the absolute value of angle v or angle j is greater than the first inclination angle threshold or the second inclination angle threshold, output a leveling signal; it is also used to determine the highest point, when v>0, j>0, the highest point is the second outrigger oil cylinder, when v>0, j<0, the highest point is the first outrigger oil cylinder, when v<0, j>0, the highest point is the fourth outrigger oil cylinder, when v<0, j<0, the highest point is the third outrigger oil cylinder; at the same time, the absolute values ​​of angle v and angle j are also compared, and the larger inclination angle is adjusted first;

[0009] A three-position four-way hydraulic reversing valve is connected to the corresponding stop valves on the first leg cylinder, the second leg cylinder, the third leg cylinder and the fourth leg cylinder at the same time, and is used to control the lifting and lowering of the first leg cylinder, the second leg cylinder, the third leg cylinder and the fourth leg cylinder respectively, and stops working in response to a cut-off signal; in response to a leveling signal, controls the two cylinders on the same side to rise simultaneously until the angle v or the angle j is smaller than the inclination threshold.

[0010] The technical solution further defined in the present invention is:

[0011] Further, the pressure threshold is set such that when the hydraulic oil pressure at the outlet of the floating pump reaches the pressure threshold, the thrust of all cylinders is equal to 80% of the weight of the platform.

[0012] In the above-mentioned outrigger platform leveling device, the first inclination angle threshold is set to 2 degrees.

[0013] In the above-mentioned outrigger platform leveling device, the second inclination angle threshold is set to 0.1 degrees.

[0014] In the above-mentioned outrigger platform leveling device, the main control module is configured as a programmable logic controller.

[0015] A method for leveling a leg platform comprises the following steps:

[0016] S1, the first outrigger oil cylinder, the second outrigger oil cylinder, the third outrigger oil cylinder and the fourth outrigger oil cylinder are extended at the same time, a pressure threshold is preset, so that when the hydraulic oil pressure at the pump outlet reaches the pressure threshold, the thrust of all the oil cylinders is equal to 75%-85% of the weight of the load-bearing platform, and the first inclination angle threshold and the second inclination angle threshold are also preset, and the first inclination angle threshold is greater than the second inclination angle threshold;

[0017] S2, read the pressure value of the hydraulic oil at the oil pump outlet;

[0018] S3, comparing the pressure value of the hydraulic oil at the oil pump outlet with the pressure threshold, when the pressure value of the hydraulic oil at the oil pump outlet is less than the pressure threshold, executing step S2, otherwise executing step S4;

[0019] S4, reading the angle v of the X-axis of the carrier platform;

[0020] S5, compare the angle v of the X-axis of the support platform with the first inclination threshold value, when the angle v is greater than 0 and the absolute value is greater than the first inclination threshold value, the first leg oil cylinder and the second leg oil cylinder are extended, and step S4 is executed; when the angle v is less than 0 and the absolute value is greater than the first inclination threshold value, the third leg oil cylinder and the fourth leg oil cylinder are extended, and step S4 is executed; when the absolute value of the angle v is less than the first inclination threshold value, step S6 is executed;

[0021] S6, reading the angle j of the Y axis of the carrier platform;

[0022] S7, compare the angle j of the Y axis of the support platform with the first inclination threshold value, when the angle j is greater than 0 and the absolute value is greater than the first inclination threshold value, the first leg oil cylinder and the fourth leg oil cylinder are extended, and step S6 is executed; when the angle j is less than 0 and the absolute value is greater than the first inclination threshold value, the second leg oil cylinder and the third leg oil cylinder are extended, and step S6 is executed; when the absolute value of the angle j is less than the first inclination threshold value, step S8 is executed;

[0023] S8, reading the angle v of the X-axis of the carrier platform;

[0024] S9, compare the angle v of the X-axis of the support platform with the second inclination threshold value, when the angle v is greater than 0 and the absolute value is greater than the second inclination threshold value, the first leg oil cylinder and the second leg oil cylinder are extended, and step S8 is executed; when the angle v is less than 0 and the absolute value is greater than the second inclination threshold value, the third leg oil cylinder and the fourth leg oil cylinder are extended, and step S8 is executed; when the absolute value of the angle v is less than the second inclination threshold value, step S10 is executed;

[0025] S10, reading the Y-axis angle j of the carrier platform;

[0026] S11. Compare the angle j of the Y-axis of the support platform with the second inclination threshold. When the angle j is greater than 0 and its absolute value is greater than the second inclination threshold, the first leg cylinder and the fourth leg cylinder are extended, and step S10 is executed; when the angle j is less than 0 and its absolute value is greater than the second inclination threshold, the second leg cylinder and the third leg cylinder are extended, and step S10 is executed; when the absolute value of the angle j is less than the second inclination threshold, the leveling work is completed.

[0027] In the above-mentioned outrigger platform leveling method, in step S1, the pressure threshold is set so that when the hydraulic oil pressure at the pump outlet reaches the pressure threshold, the thrust of all cylinders is equal to 80% of the weight of the support platform.

[0028] In the above-mentioned outrigger platform leveling method, in step S1, the first inclination angle threshold is set to 2 degrees.

[0029] In the above-mentioned outrigger platform leveling method, in step S1, the second inclination angle threshold is set to 0.1 degrees.

[0030] The beneficial effects of the present invention are:

[0031] In the present invention, first, the first leg cylinder, the second leg cylinder, the third leg cylinder and the fourth leg cylinder rise at the same time, and stop rising when the hydraulic oil pressure at the oil pump outlet is equal to the pressure threshold. At this time, the thrust of all the cylinders is close to the gravity of the bearing platform, specifically 75%-85% of the gravity of the bearing platform, so that all the cylinders can be put on the ground at the fastest speed, effectively avoiding the occurrence of virtual position, greatly saving working time, and when leveling the bearing platform, the two cylinders located on the same side rise at the same time, which is equivalent to three-point plane determination, and there will be no problem of a single cylinder without actual force, thereby avoiding the virtual position problem caused by the action of only one cylinder, and has the advantages of simple installation, high precision and rapid leveling, which greatly improves the convenience of the entire leg platform leveling equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a principle block diagram of the present invention;

[0033] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0034] Figure 3 It is the principle diagram of the hydraulic system of the present invention;

[0035] Figure 4 The figure is a flow chart of the leveling method of the present invention.

[0036] Among them: 1. Load-bearing platform; 2. Inclination sensor; 3. First outrigger oil cylinder; 4. Second outrigger oil cylinder; 5. Third outrigger oil cylinder; 6. Fourth outrigger oil cylinder. DETAILED DESCRIPTION

[0037] This embodiment provides a leg platform leveling device, the structure of which is as follows Figures 1 to 3 As shown, it includes a carrying platform 1, characterized in that it also includes

[0038] Inclination sensor 2 is used to measure the inclination of the platform in real time and is installed on the platform 1. The X-axis and Y-axis of the inclination sensor 2 are parallel to the X-axis and Y-axis of the platform 1 respectively. The angle of the X-axis of the platform 1 is v, and the angle of the Y-axis is j.

[0039] The first outrigger oil cylinder 3, the second outrigger oil cylinder 4, the third outrigger oil cylinder 5 and the fourth outrigger oil cylinder 6 are symmetrically arranged at the four corners of the carrying platform 1, the first outrigger oil cylinder 3 and the second outrigger oil cylinder 4 are respectively arranged on both sides of the X-axis direction, and the first outrigger oil cylinder 3 and the third outrigger oil cylinder 5 are respectively arranged at the diagonal positions of the carrying platform 1, and the first outrigger oil cylinder 3, the second outrigger oil cylinder 4, the third outrigger oil cylinder 5 and the fourth outrigger oil cylinder 6 are all provided with stop valves;

[0040] The oil tank and the oil pump are used to supply oil to the first leg oil cylinder 3, the second leg oil cylinder 4, the third leg oil cylinder 5 and the fourth leg oil cylinder 6 at the same time;

[0041] The pressure sensor is used to detect the pressure of the hydraulic oil at the outlet of the oil pump in real time;

[0042] The main control module is electrically connected to the inclination sensor 2, the three-position four-way hydraulic reversing valve and the pressure sensor respectively, and a pressure threshold is preset so that when the hydraulic oil pressure at the outlet of the floating pump reaches the pressure threshold, the thrust of all cylinders is equal to 75%-85% of the gravity of the bearing platform 1, and the pressure value of the hydraulic oil at the outlet of the oil pump is read. When the pressure value of the hydraulic oil at the outlet of the oil pump is greater than or equal to the pressure threshold, a cut-off signal is output; a first inclination angle threshold and a second inclination angle threshold are preset, the first inclination angle threshold is set to 1-5 degrees, and the second inclination angle threshold is set to 0.01-1 degree, and the angle v and angle are read. j, and respectively compare with the first inclination angle threshold and the second inclination angle threshold, when the absolute value of angle v or angle j is greater than the first inclination angle threshold or the second inclination angle threshold, output a leveling signal; it is also used to judge the highest point, when v>0, j>0, the highest point is the second outrigger oil cylinder 4, when v>0, j<0, the highest point is the first outrigger oil cylinder 3, when v<0, j>0, the highest point is the fourth outrigger oil cylinder 6, when v<0, j<0, the highest point is the third outrigger oil cylinder 5; at the same time, the absolute values ​​of angle v and angle j are also compared, and the larger inclination angle is adjusted first;

[0043] The three-position four-way hydraulic reversing valve is connected to the corresponding stop valves on the first leg cylinder 3, the second leg cylinder 4, the third leg cylinder 5 and the fourth leg cylinder 6 at the same time, and is used to control the lifting and lowering of the first leg cylinder 3, the second leg cylinder 4, the third leg cylinder 5 and the fourth leg cylinder 6 respectively, and stops working in response to the cut-off signal; in response to the leveling signal, controls the two cylinders located on the same side to rise simultaneously until the angle v or the angle j is smaller than the inclination threshold.

[0044] First, the first leg cylinder 3, the second leg cylinder 4, the third leg cylinder 5 and the fourth leg cylinder 6 rise at the same time, and stop rising when the hydraulic oil pressure at the oil pump outlet is equal to the pressure threshold. At this time, the thrust of all cylinders is close to the gravity of the load-bearing platform 1, specifically 80% of the gravity of the load-bearing platform 1, so that all cylinders can fall to the ground as quickly as possible, effectively avoiding the occurrence of empty positions and greatly saving working time.

[0045] Then read the data of the inclination sensor 2. Since the inclination sensor 2 is installed on the supporting platform 1, and the X" axis is parallel to the X axis, and the Y" axis is parallel to the Y axis, the X" axis angle v and the Y" axis angle j of the inclination sensor 2 are consistent with those of the supporting platform 1. When the absolute value of the angle v or the angle j is greater than the first inclination threshold or the second inclination threshold, the main control module controls the first leg cylinder 3, the second leg cylinder 4, the third leg cylinder 5 and the fourth leg cylinder 6 to work, so as to level the supporting platform 1. The first inclination threshold is set to 2 degrees, and the second inclination threshold is set to 0.1 degrees.

[0046] Next, determine which cylinder is at the highest point, as shown in Table 1, when v>0, j>0, the highest point is the second leg cylinder 4, when v>0, j<0, the highest point is the first leg cylinder 3, when v<0, j>0, the highest point is the fourth leg cylinder 6, and when v<0, j<0, the highest point is the third leg cylinder 5.

[0047] Serial number Angle value highest point 1 v>0,j>0 Second outrigger cylinder 2 v>0,j<0 First outrigger cylinder 3 v<0,j>0 Fourth leg cylinder 4 v<0,j<0 The third leg cylinder

[0048] Table 1 Highest point judgment table

[0049] At the same time, the absolute values ​​of angle v and angle j are also compared, and the larger inclination angle is adjusted first.

[0050] Assuming that the first outrigger oil cylinder 3 is at the highest point, and the absolute value of the angle v is greater than the absolute value of the angle j, at this time, the first outrigger oil cylinder 3 and the second outrigger oil cylinder 4 both maintain their original states, firstly adjust the third outrigger oil cylinder 5 and the fourth outrigger oil cylinder 6 so that the third outrigger oil cylinder 5 and the fourth outrigger oil cylinder 6 rise at the same time, because they share a common oil pump for oil supply, the hydraulic oil will preferentially flow to the side with low oil pressure, at this time, the third outrigger oil cylinder 5 and the fourth outrigger oil cylinder 6 as a whole are equivalent to a fulcrum, and the bearing platform 1 is equivalent to a three-point fixed surface, and there will be no problem of a single oil cylinder having no actual force, thereby avoiding the virtual position problem caused by only one oil cylinder in motion, until the absolute value of the angle v is less than the first inclination angle threshold, that is, 2 degrees; similarly, the second outrigger oil cylinder 4 and the third outrigger oil cylinder 5 are adjusted again according to the above steps, so that the second outrigger oil cylinder 4 and the third outrigger oil cylinder 5 rise at the same time, until the absolute value of the angle j is less than the first inclination angle threshold, that is, 2 degrees;

[0051] The above steps are coarse-precision adjustments, and then fine adjustments are performed. First, the third leg cylinder 5 and the fourth leg cylinder 6 are adjusted so that the third leg cylinder 5 and the fourth leg cylinder 6 rise at the same time until the absolute value of the angle v is less than the second inclination threshold, that is, 0.1 degrees; similarly, the second leg cylinder 4 and the third leg cylinder 5 are adjusted again according to the above steps so that the second leg cylinder 4 and the third leg cylinder 5 rise at the same time until the absolute value of the angle j is less than the second inclination threshold, that is, 0.1 degrees, thereby completing the entire leveling work, so that the entire leg platform leveling equipment has the advantages of simple installation, high precision and rapid leveling, which greatly improves the convenience of the entire leg platform leveling equipment.

[0052] A method for leveling an outrigger platform, such as Figure 4 As shown, the following steps are included

[0053] S1, the first outrigger oil cylinder (3), the second outrigger oil cylinder (4), the third outrigger oil cylinder (5) and the fourth outrigger oil cylinder (6) are extended simultaneously, a pressure threshold is preset, so that when the hydraulic oil pressure at the pump outlet reaches the pressure threshold, the thrust of all the oil cylinders is equal to 80% of the weight of the bearing platform (1), and a first inclination angle threshold and a second inclination angle threshold are also preset, the first inclination angle threshold is set to 2 degrees, and the second inclination angle threshold is set to 0.1 degrees;

[0054] S2, read the pressure value of the hydraulic oil at the oil pump outlet;

[0055] S3, comparing the pressure value of the hydraulic oil at the oil pump outlet with the pressure threshold, when the pressure value of the hydraulic oil at the oil pump outlet is less than the pressure threshold, executing step S2, otherwise executing step S4;

[0056] S4, reading the angle v of the X-axis of the carrier platform (1);

[0057] S5, comparing the angle v of the X-axis of the support platform (1) with a first inclination threshold value; when the angle v is greater than 0 and its absolute value is greater than the first inclination threshold value, the first outrigger oil cylinder and the second outrigger oil cylinder are extended, and step S4 is executed; when the angle v is less than 0 and its absolute value is greater than the first inclination threshold value, the third outrigger oil cylinder and the fourth outrigger oil cylinder are extended, and step S4 is executed; when the absolute value of the angle v is less than the first inclination threshold value, step S6 is executed;

[0058] S6, reading the Y-axis angle j of the carrier platform (1);

[0059] S7, compare the angle j of the Y axis of the support platform (1) with the first inclination threshold value, when the angle j is greater than 0 and the absolute value is greater than the first inclination threshold value, the first leg oil cylinder and the fourth leg oil cylinder are extended, and step S6 is executed; when the angle j is less than 0 and the absolute value is greater than the first inclination threshold value, the second leg oil cylinder and the third leg oil cylinder are extended, and step S6 is executed; when the absolute value of the angle j is less than the first inclination threshold value, step S8 is executed;

[0060] S8, reading the angle v of the X-axis of the carrier platform (1);

[0061] S9, comparing the angle v of the X-axis of the support platform (1) with the second inclination threshold value; when the angle v is greater than 0 and its absolute value is greater than the second inclination threshold value, the first outrigger oil cylinder and the second outrigger oil cylinder are extended, and step S8 is executed; when the angle v is less than 0 and its absolute value is greater than the second inclination threshold value, the third outrigger oil cylinder and the fourth outrigger oil cylinder are extended, and step S8 is executed; when the absolute value of the angle v is less than the second inclination threshold value, step S10 is executed;

[0062] S10, reading the Y-axis angle j of the carrier platform (1);

[0063] S11, compare the angle j of the Y axis of the support platform (1) with the second inclination threshold value; when the angle j is greater than 0 and its absolute value is greater than the second inclination threshold value, the first leg cylinder and the fourth leg cylinder are extended, and step S10 is executed; when the angle j is less than 0 and its absolute value is greater than the second inclination threshold value, the second leg cylinder and the third leg cylinder are extended, and step S10 is executed; when the absolute value of the angle j is less than the second inclination threshold value, the leveling work is completed.

[0064] In addition to the above embodiments, the present invention may also have other implementation modes; any technical solutions formed by equivalent replacement or equivalent transformation shall fall within the protection scope required by the present invention.

Claims

1. A leg platform leveling device, comprising a bearing platform (1), characterized in that: Also includes The inclination sensor (2) is used to measure the inclination of the support platform in real time and is installed on the support platform (1). The X-axis and Y-axis of the inclination sensor (2) are respectively parallel to the X-axis and Y-axis of the support platform (1). The angle of the X-axis of the support platform (1) is v, and the angle of the Y-axis is j. A first outrigger oil cylinder (3), a second outrigger oil cylinder (4), a third outrigger oil cylinder (5) and a fourth outrigger oil cylinder (6) are symmetrically arranged at four corners of the support platform (1), the first outrigger oil cylinder (3) and the second outrigger oil cylinder (4) are arranged at both sides of the X-axis direction, and the first outrigger oil cylinder (3) and the third outrigger oil cylinder (5) are arranged at diagonal positions of the support platform (1), and the first outrigger oil cylinder (3), the second outrigger oil cylinder (4), the third outrigger oil cylinder (5) and the fourth outrigger oil cylinder (6) are all provided with stop valves; An oil tank and an oil pump, used for simultaneously supplying oil to the first outrigger oil cylinder (3), the second outrigger oil cylinder (4), the third outrigger oil cylinder (5) and the fourth outrigger oil cylinder (6); The pressure sensor is used to detect the pressure of the hydraulic oil at the outlet of the oil pump in real time; The main control module is electrically connected to the inclination sensor (2), the three-position four-way hydraulic reversing valve and the pressure sensor respectively, and a pressure threshold is preset so that when the hydraulic oil pressure at the outlet of the floating pump reaches the pressure threshold, the thrust of all cylinders is equal to 75%-85% of the weight of the support platform (1), and the pressure value of the hydraulic oil at the outlet of the oil pump is read, and a cut-off signal is output when the pressure value of the hydraulic oil at the outlet of the oil pump is greater than or equal to the pressure threshold; A first tilt angle threshold and a second tilt angle threshold are preset, the first tilt angle threshold is set to 1-5 degrees, and the second tilt angle threshold is set to 0.01-1 degrees, an angle v and an angle j are read, and are respectively compared with the first tilt angle threshold and the second tilt angle threshold, and when the absolute value of the angle v or the angle j is greater than the first tilt angle threshold or the second tilt angle threshold, a leveling signal is output; it is also used to determine the highest point, when v>0, j>0, the highest point is the second outrigger oil cylinder (4), when v>0, j<0, the highest point is the first outrigger oil cylinder (3), when v<0, j>0, the highest point is the fourth outrigger oil cylinder (6), and when v<0, j<0, the highest point is the third outrigger oil cylinder (5); at the same time, the absolute values ​​of the angle v and the angle j are also compared, and the larger angle is adjusted first; The three-position four-way hydraulic reversing valve is simultaneously connected to the corresponding stop valves on the first leg oil cylinder (3), the second leg oil cylinder (4), the third leg oil cylinder (5) and the fourth leg oil cylinder (6), and is used to control the lifting and lowering of the first leg oil cylinder (3), the second leg oil cylinder (4), the third leg oil cylinder (5) and the fourth leg oil cylinder (6) respectively, and stops working in response to a cut-off signal; in response to a leveling signal, controls the two oil cylinders located on the same side to rise simultaneously until the angle v or the angle j is smaller than the inclination threshold.

2. The outrigger platform leveling device according to claim 1, characterized in that: The pressure threshold is set so that when the hydraulic oil pressure at the outlet of the floating pump reaches the pressure threshold, the thrust of all cylinders is equal to 80% of the weight of the support platform (1).

3. The outrigger platform leveling device according to claim 1, characterized in that: The first tilt angle threshold is set to 2 degrees.

4. The outrigger platform leveling device according to claim 1, characterized in that: The second tilt angle threshold is set to 0.1 degrees.

5. The outrigger platform leveling device according to claim 1, characterized in that: The main control module is configured as a programmable logic controller.

6. A method for using the outrigger platform leveling device according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, the first outrigger oil cylinder (3), the second outrigger oil cylinder (4), the third outrigger oil cylinder (5) and the fourth outrigger oil cylinder (6) are extended simultaneously, a pressure threshold is preset, so that when the hydraulic oil pressure at the outlet of the floating pump reaches the pressure threshold, the thrust of all the oil cylinders is equal to 75%-85% of the weight of the bearing platform (1), and a first inclination angle threshold and a second inclination angle threshold are also preset, and the first inclination angle threshold is greater than the second inclination angle threshold; S2, read the pressure value of the hydraulic oil at the oil pump outlet; S3, comparing the pressure value of the hydraulic oil at the oil pump outlet with the pressure threshold, when the pressure value of the hydraulic oil at the oil pump outlet is less than the pressure threshold, executing step S2, otherwise executing step S4; S4, reading the angle v of the X-axis of the support platform (1); S5, comparing the angle v of the X-axis of the support platform (1) with the first inclination threshold value; when the angle v is greater than 0 and its absolute value is greater than the first inclination threshold value, the first leg oil cylinder (3) and the second leg oil cylinder (4) are extended, and step S4 is executed; when the angle v is less than 0 and its absolute value is greater than the first inclination threshold value, the third leg oil cylinder (5) and the fourth leg oil cylinder (6) are extended, and step S4 is executed; when the absolute value of the angle v is less than the first inclination threshold value, step S6 is executed; S6, reading the Y-axis angle j of the carrier platform (1); S7, compare the angle j of the Y axis of the support platform (1) with the first inclination threshold value, when the angle j is greater than 0 and the absolute value is greater than the first inclination threshold value, the first leg cylinder (3) and the fourth leg cylinder (6) are extended, and step S6 is executed; when the angle j is less than 0 and the absolute value is greater than the first inclination threshold value, the second leg cylinder (4) and the third leg cylinder (5) are extended, and step S6 is executed; when the absolute value of the angle j is less than the first inclination threshold value, step S8 is executed; S8, reading the angle v of the X-axis of the support platform (1); S9, comparing the angle v of the X-axis of the support platform (1) with the second inclination threshold value; when the angle v is greater than 0 and its absolute value is greater than the second inclination threshold value, the first leg cylinder (3) and the second leg cylinder (4) are extended, and step S8 is executed; when the angle v is less than 0 and its absolute value is greater than the second inclination threshold value, the third leg cylinder (5) and the fourth leg cylinder (6) are extended, and step S8 is executed; when the absolute value of the angle v is less than the second inclination threshold value, step S10 is executed; S10, reading the Y-axis angle j of the support platform (1); S11, compare the angle j of the Y axis of the support platform (1) with the second inclination threshold value; when the angle j is greater than 0 and its absolute value is greater than the second inclination threshold value, the first leg cylinder (3) and the fourth leg cylinder (6) are extended, and step S10 is executed; when the angle j is less than 0 and its absolute value is greater than the second inclination threshold value, the second leg cylinder (4) and the third leg cylinder (5) are extended, and step S10 is executed; when the absolute value of the angle j is less than the second inclination threshold value, the leveling work is completed.

7. The method for using the outrigger platform leveling device according to claim 6, characterized in that: In step S1, the pressure threshold is set so that when the hydraulic oil pressure at the outlet of the floating pump reaches the pressure threshold, the thrust of all cylinders is equal to 80% of the weight of the support platform (1).

8. The method for using the outrigger platform leveling device according to claim 6, characterized in that: In step S1, the first tilt angle threshold is set to 2 degrees.

9. The method for using the outrigger platform leveling device according to claim 6, characterized in that: In step S1, the second tilt angle threshold is set to 0.1 degrees.

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