CN203309467U - A bearing platform capable of self-buffering and adjustment - Google Patents

Abstract

The utility model discloses a but load-bearing platform of oneself buffering adjustment, its characterized in that: it comprises a bearing table-board, a control device and a supporting device for self-buffering adjustment; the supporting device is composed of four supporting legs with buffer adjusting mechanisms and four pressure adjusting loops corresponding to the supporting legs. The self-buffering adjustment of the bearing platform can be realized through the mutual matching of the control device and the self-buffering adjustment supporting device.

Description

A bearing platform capable of self-buffering and adjustment

technical field

The utility model relates to a bearing platform, in particular to a bearing platform capable of self-buffering and adjustment.

Background technique

Currently, various support platforms are generally only suitable for surfaces with high hardness and high flatness, especially support platforms for supporting various large equipment or objects, which have extremely high requirements on the ground, otherwise they are easy to tilt and fall. In addition, the current support platforms rely on manual adjustment, and there are certain errors, and over the years, the errors will continue to increase, which will eventually affect the flatness of the carrying platform. In addition, the current load-carrying platform has low cushioning effect and cannot adapt to strong impact force, so there are certain defects.

Utility model content

In view of the above shortcomings, the purpose of this utility model is to provide a self-buffering and adjusting bearing platform with ingenious structure and superior performance.

The technical scheme that the utility model adopts for realizing the above object is:

A self-buffering and adjusting bearing platform is characterized in that it includes a bearing table, a control device and a self-buffering and adjusting supporting device; the supporting device consists of four supporting legs with a buffering adjustment mechanism and four The pressure regulating circuit corresponding to the support leg is composed; the support leg includes a connecting block, an air bag, a leg outer cylinder, a transparent cover and a telescopic rod; the leg outer cylinder is arranged between the connecting block and the transparent cover; the The telescopic rod is installed in the outer cylinder of the legs, and its lower part protrudes from the outer cylinder of the legs; an oil chamber is arranged in the outer cylinder of the legs, which is located in the space above the telescopic rod; the oil chamber passes through a The partition is divided into upper and lower parts, the upper part is provided with a pre-inflated closed air bag, the lower part stores hydraulic oil and is connected to the external pressure regulating circuit; the partition is provided with a damping hole; the lower end of the telescopic rod is installed useful A force sensor to measure the magnitude and direction of the contact force between the foot and the ground; the outer cover of the force sensor is covered with a rubber sleeve; the pressure regulation circuit includes a constant pressure oil source, an electro-hydraulic servo valve, a hydraulic control check valve and The pressure sensor, the constant pressure oil source, the electro-hydraulic servo valve and the hydraulic control check valve are connected in sequence, the hydraulic control check valve is connected to the oil chamber, and the pressure sensor is installed between the oil chamber and the hydraulic control valve. between check valves.

The control device is connected with the four pressure regulation circuits to form a total pressure regulation system. Through the data analysis of each sensor and the coordinated control of the pressure adjustment circuit of each support leg, the adjustment of the entire self-cushioning and adjusting support device is realized, thereby maintaining good flatness and cushioning strength.

Two linear bearings are arranged between the leg outer cylinder and the telescopic rod, and a shaft sleeve is arranged between the two linear bearings. A dustproof sealing ring is provided between the transparent cover and the telescopic rod. An oil seal is provided between the upper end piston of the telescopic rod and the leg outer cylinder.

The utility model has the advantage that the self-buffering adjustment of the load-carrying platform is realized through the mutual cooperation of the control device and the self-buffering and adjusting support device.

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

Description of drawings

Fig. 1 is the structural representation of present embodiment;

Fig. 2 is the structural representation of support leg;

FIG. 3 is a schematic diagram of a pressure regulating circuit.

Detailed ways

Referring to Fig. 1 to Fig. 3, a self-buffering and adjusting carrying platform provided in this embodiment is characterized in that it includes a carrying platform 20, a control device and a self-buffering and adjusting supporting device; the supporting device consists of Four supporting legs 21 with a buffer adjustment mechanism and four pressure adjustment circuits corresponding to the supporting legs 21; the supporting legs include a connecting block 1, an air bag 2, a leg outer cylinder 3, a transparent cover 11 and a telescopic rod 13; the leg outer cylinder 3 is arranged between the connecting block 1 and the transparent cover 11; the telescopic rod 13 is installed in the leg outer cylinder 3, and its lower part protrudes from the leg outer cylinder 3; An oil chamber 6 is arranged in the leg outer cylinder 3, which is located in the space above the telescopic rod 13; the oil chamber 6 is divided into upper and lower parts by a partition, and the upper part is provided with a pre-inflated closed air bag 2, and the lower part The hydraulic oil is stored and connected to the external pressure regulating circuit; the diaphragm is provided with a damping hole 4; the lower end of the telescopic rod 13 is installed with a force sensor 14 for measuring the magnitude and direction of the contact force between the foot and the ground The outside of the force sensor 14 is covered with a rubber sleeve 15; the pressure regulation circuit includes a constant pressure oil source 19, an electro-hydraulic servo valve 18, a hydraulic control check valve 17 and a pressure sensor 16, and the constant pressure oil source 19 , the electro-hydraulic servo valve 18 and the hydraulic control check valve 17 are connected sequentially, the hydraulic control check valve 17 is connected with the oil chamber 6, and the pressure sensor 16 is installed between the oil chamber 6 and the hydraulic control check valve Between 17.

The control device is connected with the four pressure regulation circuits to form a total pressure regulation system. Through the data analysis of each sensor and the coordinated control of the pressure adjustment circuit of each support leg, the adjustment of the entire self-cushioning and adjusting support device is realized, thereby maintaining good flatness and cushioning strength.

Two linear bearings 8 , 10 are arranged between the leg outer cylinder 3 and the telescopic rod 13 , and a shaft sleeve 9 is arranged between the two linear bearings 8 , 10 . A dustproof sealing ring 12 is provided between the transparent cover 11 and the telescopic rod 13 . An oil seal 7 is provided between the upper end piston of the telescopic rod 13 and the leg outer cylinder 3 .

One of the loop schemes for buffer regulation. The pressure regulating circuit connected with the oil chamber 6 is shown in Fig. 3 . The constant pressure oil source 19 and the oil tank 20 among the figure all adopt the constant pressure oil source and the oil tank of the hydraulic drive system, also can be set separately. A pressure sensor 16 is installed between the oil chamber 6 and the hydraulic check valve 17 to measure the pressure of the hydraulic oil in the oil chamber 6 and transmit it to the control system. The hydraulic control check valve 17 is used to cut off the passage of hydraulic oil from the oil chamber 6 to the electro-hydraulic servo valve 18, so as to prevent the excessive pressure of the hydraulic oil in the oil chamber 6 from impacting the electro-hydraulic servo valve 18 when subjected to a strong impact. However, when the pressure in the oil chamber 6 is actively adjusted, the hydraulic control check valve 17 can communicate in both directions under the control of the electro-hydraulic servo valve 18 . The electro-hydraulic servo valve 18 quickly adjusts the oil volume in the oil chamber 6 according to the hydraulic oil pressure in the oil chamber 6 measured by the pressure sensor 16 and the hydraulic oil pressure corresponding to the spring stiffness of the air bag 2 determined by the hardness of the ground.

The spring stiffness of the air bag 2 is related to the gas pressure inside it, and the gas pressure is the same as the pressure of the hydraulic oil in the oil chamber 6 . The control system determines the optimal spring stiffness according to ground information, and compares the gas pressure corresponding to the spring stiffness with the pressure measured by the pressure sensor 16 , and then sends a corresponding current signal to the electro-hydraulic servo valve 18 . The electro-hydraulic servo valve 18 rapidly adjusts the oil volume in the oil chamber 6 according to the current signal until the pressure measured by the pressure sensor 16 is equal to the gas pressure corresponding to the optimal spring stiffness.

The utility model is not limited to the above-mentioned embodiments, and other self-buffering and adjusting carrying platforms obtained by adopting the same or similar technical features as the above-mentioned embodiments of the utility model are within the scope of protection of the utility model.

Claims (5)

1. A bearing platform capable of self-buffering and adjustment, characterized in that: it comprises a bearing table, a control device and a self-buffering and adjusting support device; said support device consists of four support legs with a buffer adjustment mechanism and four It consists of a pressure regulation circuit corresponding to the support leg; the support leg includes a connecting block (1), an air bag (2), a leg outer cylinder (3), a transparent cover (11) and a telescopic rod (13); The leg outer cylinder (3) is arranged between the connecting block (1) and the transparent cover (11); the telescopic rod (13) is installed in the leg outer cylinder (3), and its lower part protrudes from the The leg outer tube (3); the leg outer tube (3) is provided with an oil chamber (6), which is located in the upper space of the telescopic rod (13); the oil chamber (6) is divided by a partition It consists of upper and lower parts, the upper part is provided with a pre-inflated closed air bag (2), and the lower part stores hydraulic oil and is connected with the external pressure regulating circuit; the diaphragm is provided with a damping hole (4); the telescopic rod ( The lower end of 13) is equipped with the force sensor (14) that is used to measure the contact force magnitude and the direction between foot and ground; The outer cover of described force sensor (14) is covered with rubber sleeve (15); Described pressure regulation loop includes constant Pressure oil source (19), electro-hydraulic servo valve (18), hydraulic control check valve (17) and pressure sensor (16), the constant pressure oil source (19), electro-hydraulic servo valve (18) and hydraulic control One-way valves (17) are connected sequentially, the hydraulically controlled one-way valve (17) is connected to the oil chamber (6), and the pressure sensor (16) is installed between the oil chamber (6) and the hydraulically controlled one-way valve. Between the valve (17). 2. The carrying platform capable of self-buffering and adjustment according to claim 1, characterized in that: the control device is connected with the four pressure regulating circuits to form a general pressure regulating system. 3. The carrying platform capable of self-buffering and adjustment according to claim 1, characterized in that two linear bearings (8, 10) are arranged between the leg outer cylinder (3) and the telescopic rod (13) , a shaft sleeve (9) is arranged between the two linear bearings (8, 10). 4. The carrying platform capable of self-buffering and adjustment according to claim 1, characterized in that: a dust-proof sealing ring (12) is provided between the transparent cover (11) and the telescopic rod (13). 5. The carrying platform capable of self-buffering and adjustment according to claim 1, characterized in that: an oil seal (7) is provided between the upper end piston of the telescopic rod (13) and the leg outer cylinder (3).

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