A hydraulic oil balancing method for multi-capstan

Abstract

A kind of hydraulic oil balancing method for multiple winch, for balancing the pressure between winch in multiple winch system, multiple winch system includes variable pump station, oil tank, signal amplifier, multiple winch operating station and the winch consistent with the number of winch operating station, winch operating station includes head winch operating station and tail winch operating station group, winch operating station is connected with LY feedback oil circuit, the LY feedback oil circuit of all winch operating station is connected in parallel;LS feedback oil circuit and LX feedback oil circuit are connected with shuttle valve, LY feedback oil circuit is connected with the spring cavity of pressure compensation valve, the LS feedback oil circuit of head winch operating station is connected with the spring cavity of pressure compensation valve;LY feedback oil circuit connected together makes the pressure of the spring cavity of each pressure compensation valve consistent, so that the degree of opening opened by reversing valve determines the amount of hydraulic oil flowing to the winch connected to the winch operating station.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydraulic pump station oil supply, in particular to a linkage method for multiple winches. BACKGROUND

[0002] The hydraulic winch is a kind of equipment powered by hydraulic system, whose working principle is to convert pressure into mechanical energy through hydraulic oil circuit, so as to drive the winch to rotate. When multiple hydraulic winches need to work simultaneously, the connection of oil circuit can realize the cooperative work of multiple winches, improve the work efficiency and rescue ability, and realize the centralized control and management of multiple winches by using the flow and pressure transmission of hydraulic oil. In practical application, the technology of multiple hydraulic winch connection oil circuit is widely used in vehicle rescue, engineering construction, outdoor exploration and other fields, especially in occasions requiring a large amount of traction or multiple winches working cooperatively, the application of this technology is particularly important. The problem to be solved in the technology of multiple winch linkage is the balance of hydraulic oil between multiple winches, that is, the hydraulic oil can be evenly delivered to each winch according to the load of each winch. SUMMARY

[0003] The problem to be solved by the present application is the balance of hydraulic oil between multiple winches.

[0004] To achieve the above purpose, the technical scheme of the present application is as follows: a hydraulic oil balance method for multiple winches, the balance method is used to balance the pressure between winches in a multiple winch system, the multiple winch system comprises multiple winch control tables and winches consistent in number with the multiple winch control tables, the multiple winch control tables are connected one by one with the winches, the multiple winch control tables are provided with a reversing valve and a pressure compensation valve, and the reversing valve is connected with the pressure compensation valve; the multiple winch control tables are divided into a head winch control table group and a tail winch control table group, wherein the tail winch control table group is composed of more than one winch control table; the winch control table is connected with an LY feedback oil circuit, the LY feedback oil circuits of all winch control tables are connected in parallel, and the LY feedback oil circuit is connected with the spring cavity of the pressure compensation valve.

[0005] The specific steps include:

[0006] S1, the hydraulic oil flows to the reversing valve, and then flows to the pressure compensation valve through the reversing valve;

[0007] S2, after flowing through the pressure compensation valve, part of the hydraulic oil flows to the spring cavity of the pressure compensation valve;

[0008] S3, through the LY feedback oil circuit connected in parallel, the pressure signal is delivered to the remaining spring cavity of the pressure compensation valve, so that the spring cavities of all pressure compensation valves have consistent pressure.

[0009] The spring cavity of the pressure compensation valve in the head winch operating table is connected with the LY feedback oil line, all the LY feedback oil lines of the winch operating tables are connected in parallel, the maximum pressure signal is transmitted to the spring cavity of the pressure compensation valve in each winch operating table through the LY feedback oil line, the pressure in the spring cavity of all the pressure compensation valves is the same, and the pressure at the input end of each pressure compensation valve is also the same, since the input end of the pressure compensation valve is connected with the reversing valve, the pressure at the two ends of the reversing valve in each winch operating table is also the same, that is, the amount of hydraulic oil flowing into each winch operating table is only related to the opening size of the reversing valve, and the hydraulic oil can be balanced according to the opening size of each winch reversing valve to deliver the hydraulic oil. BRIEF DESCRIPTION OF DRAWINGS

[0010] Fig. 1 The whole hydraulic system schematic diagram of the embodiment of the present application is shown in the figure.

[0011] Fig. 2 The hydraulic system schematic diagram of the winch operating table in the embodiment of the present application is shown in the figure.

[0012] Fig. 3 The flow chart of the present application is shown in the figure. DETAILED DESCRIPTION

[0013] The present application will be further described in detail in combination with the drawings and specific embodiments.

[0014] A hydraulic oil balancing method for multiple winches, which is used for balancing the pressure between winches in a multiple winch system, the multiple winch system comprises multiple winch operating tables 1 and winches 2 consistent in number with the multiple winch operating tables 1, the multiple winch operating tables 1 are connected with the winches 2 one by one, the multiple winch operating tables 1 are provided with a reversing valve 11 and a pressure compensation valve 12, and the reversing valve 11 is connected with the pressure compensation valve 12.

[0015] The multiple winch operating tables 1 are divided into a head winch operating table 3 and a tail winch operating table group 4, wherein the tail winch operating table group 4 is composed of more than one winch operating table; the winch operating table is connected with a LY feedback oil line, all the LY feedback oil lines of the winch operating tables are connected in parallel, and the LY feedback oil line is connected with the spring cavity of the pressure compensation valve 12.

[0016] In the embodiment, the hydraulic oil flows to the pressure compensation valve 12 through the reversing valve 11, and then flows out from the pressure compensation valve 12, part of the hydraulic oil flows back to the pressure compensation valve 12, and the other part of the hydraulic oil flows to the LY feedback oil line, since all the LY feedback oil lines are connected in parallel, the signal oil is input into the spring cavity of the pressure compensation valve 12 through the LY feedback oil line, so that the pressure in the spring cavity of each pressure compensation valve is consistent, and the hydraulic oil flows to each winch operating table averagely, and the amount of the hydraulic oil flowing to the winch 2 is controlled by the opening size of the reversing valve 12.

[0017] As Figs. 1-2 shown, the winch console and the winch 2 are connected with the oil drain path T0, the oil drain path T0 is connected with the reversing valve 11, the oil drain path T0 is connected with the pilot type overflow valve 13 between the reversing valve 11, and the reversing valve 11 is connected with the balance valve 14 between the oil tank 2.

[0018] In this embodiment, after the reversing valve 11 is reset, the winch 2 stops working, at this time, part of the hydraulic oil in the feedback oil path does not flow back to the oil tank, the pilot type overflow valve 13 is opened, the signal oil in the feedback oil path flows to the T0 oil drain path through the pilot type overflow valve 13, thereby flowing back to the oil tank, and unloading is realized; at the same time, part of the hydraulic oil in the oil path of the reversing valve 11 stays, at this time, the balance valve 14 is opened, the hydraulic oil of the reversing valve 11 flows back to the oil tank through the balance valve 14, and unloading is realized.

[0019] The hydraulic oil balancing method for multiple winches described above, the specific steps include:

[0020] S1, the hydraulic oil flows to the reversing valve 11, and then flows to the pressure compensation valve 12 through the reversing valve 11;

[0021] S2, after the hydraulic oil flows through the pressure compensation valve 12, part of the hydraulic oil flows to the spring cavity of the pressure compensation valve 12;

[0022] S3, through the LY feedback oil path connected in parallel, the pressure signal is transmitted to the spring cavity of the remaining pressure compensation valve 12, so that the spring cavity pressures of all the pressure compensation valves 12 are consistent;

[0023] S4, the reversing valve 11 is pushed to reset the reversing valve 11, at this time, the winch 2 stops working;

[0024] S5, the pilot type overflow valve 13 is opened, so that the hydraulic oil in the feedback oil path flows away through the oil drain path T0;

[0025] S6, the balance valve 14 is opened, so that the hydraulic oil in the oil path of the reversing valve 11 flows away through the balance valve 14.

[0026] The above method, the pressure signal is transmitted to the LY feedback oil circuit connected with the spring cavity of the pressure compensation valve 12 in a winch operating station. Since all the LY feedback oil circuits of the winch operating stations are connected in parallel, the maximum pressure signal is transmitted to the spring cavity of the pressure compensation valve 12 in each winch operating station through the LY feedback oil circuit, that is, the pressure in the spring cavities of all the pressure compensation valves 12 is the same, which also makes the pressure at the input end of each pressure compensation valve 12 the same. Since the input end of the pressure compensation valve 12 is connected with the reversing valve 11, the pressure at both ends of the reversing valve 11 in each winch operating station is also the same, that is, the amount of hydraulic oil flowing into each winch operating station is only related to the opening size of the reversing valve 11, and the hydraulic oil can be balanced according to the opening size of the reversing valve 11 in each winch operating station to deliver the hydraulic oil.

Claims

1. A hydraulic oil balancing method for a multi-capstan, the balancing method is used to balance the pressure between the capstans in a multi-capstan system, the multi-capstan system comprises a plurality of capstan control platforms (1) and a plurality of capstans (2) consistent with the number of capstan control platforms (1), the plurality of capstan control platforms (1) are connected one-to-one with the capstans (2), characterized in that: The plurality of winch control stations (1) are provided with a reversing valve (11) and a pressure compensation valve (12), the reversing valve (11) is connected with the pressure compensation valve (12); The plurality of winch control stations (1) are divided into a head winch control station (3) and a tail winch control station group (4), wherein the tail winch control station group (4) is composed of more than one winch control station; the winch control station is connected with an LY feedback oil circuit, the LY feedback oil circuits of all winch control stations are connected in parallel, and the LY feedback oil circuit is connected with a spring cavity of the pressure compensation valve (12); The specific steps include: S1, hydraulic oil flows to the reversing valve (11), and then flows to the pressure compensation valve (12) through the reversing valve (11); S2, after the hydraulic oil flows through the pressure compensation valve (12), part of the hydraulic oil flows to the spring cavity of the pressure compensation valve (12); S3, through the LY feedback oil circuits connected in parallel, the pressure signal is transmitted to the remaining spring cavity of the pressure compensation valve (12), so that the pressures of the spring cavities of all pressure compensation valves (12) are consistent.

2. The hydraulic oil balancing method for multiple capstans according to claim 1, characterized by: The winch control station and the winch are connected with a drain circuit T0, and the drain circuit T0 is connected with an input end of an oil tank.

3. The hydraulic oil balancing method for multiple capstans according to claim 2, characterized by: The drain circuit T0 is connected with the pressure compensation valve (12), and a pilot type overflow valve (13) is connected between the drain circuit T0 and the pressure compensation valve (12).

4. The hydraulic oil balancing method for multiple capstans according to claim 3, characterized by: The reversing valve (11) is also connected with a balance valve (14).

5. The hydraulic oil balancing method for multiple capstans of claim 4, wherein: The step S3 further includes the following steps: S4, push the reversing valve (11) to reset the reversing valve (11), at this time the winch (2) stops working; S5, open the pilot type overflow valve (13), so that the hydraulic oil in the feedback oil circuit flows away through the drain circuit T0; S6, open the balance valve (14), so that the hydraulic oil in the oil circuit of the reversing valve (11) flows away through the balance valve (14).

Images