Main valve group of feller

Abstract

The utility model discloses a main valve group of a feller, which comprises a main valve block of the feller, a reversing valve block fixedly connected to the side end of the main valve block of the feller, a proportional reversing valve fixedly connected to the upper end of the reversing valve block, a plug-in one-way overflow valve and a plug-in overflow valve mounted on the reversing valve block, and an electromagnetic valve cover plate fixedly connected to the front end of the reversing valve block, the two-way plug-in is fixed on the electromagnetic valve cover plate through a screw; the upper end of the feller main valve block is provided with a stacked pressure reducing valve group, a stacked overflow valve group, a stacked hydraulic control one-way valve, a stacked double overflow valve group, a stacked electromagnetic ball valve group, a stacked one-way valve group, a stacked one-way speed regulating valve group and an electromagnetic reversing valve. Multiple control functions are achieved by adopting a stacked structure, integration, miniaturization, no external leakage, simple structure and light weight are easy to achieve, linkage of an external execution mechanism is easy to achieve, the product is used in feller hydraulic equipment, and the overall structural size and weight of the equipment are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic control systems, in particular to a main valve group for a feller. Background Art

[0002] For logging machines, the hydraulic distribution valve is an important component of its hydraulic system. The hydraulic distribution valve determines the oil supply route and method of the hydraulic pump to each hydraulic component, and the flow distribution of each hydraulic component when working.

[0003] At present, when a felling machine is in use, multiple cylinders, hydraulic motors and other actuators are used for motion control, and external pipelines are connected to various valves to realize the motion control of the cylinders and hydraulic motors. There are problems such as complex structure, large size, leakage, and difficulty in realizing the motion control of multiple actuators. Therefore, it is necessary to design a main valve group for a felling machine. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a main valve group for a feller.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a main valve group of a felling machine includes a main valve block of a felling machine, a reversing valve block is fixedly connected to the side end of the main valve block of the felling machine, a proportional reversing valve is fixedly connected to the upper end of the reversing valve block, a cartridge-type one-way relief valve and a cartridge-type relief valve are installed on the reversing valve block, a solenoid valve cover is fixedly connected to the front end of the reversing valve block, a two-way plug-in is arranged inside the reversing valve block, and the two-way plug-in is fixed to the solenoid valve cover by screws; a plurality of oil channels are arranged inside the main valve block of the felling machine, and a superimposed pressure reducing valve group, a superimposed relief valve group, a superimposed hydraulically controlled one-way valve, a superimposed double relief valve group, a superimposed electromagnetic ball valve group, a superimposed one-way valve group, a superimposed one-way speed regulating valve group and an electromagnetic reversing valve are arranged on the upper end of the main valve block of the felling machine.

[0006] As a further description of the above technical solution:

[0007] The stacked pressure reducing valve group, the stacked overflow valve group, the stacked hydraulically controlled one-way valve and the electromagnetic reversing valve are a group, and three groups are provided. The stacked pressure reducing valve group, the stacked overflow valve group, the stacked hydraulically controlled one-way valve and the electromagnetic reversing valve are stacked and installed in sequence from bottom to top.

[0008] As a further description of the above technical solution:

[0009] The stacked pressure reducing valve group, the stacked one-way speed regulating valve group and the electromagnetic reversing valve are a group, and the stacked pressure reducing valve group, the stacked one-way speed regulating valve group and the electromagnetic reversing valve are stacked and installed together from bottom to top, and a J1 port is provided on the stacked one-way speed regulating valve group.

[0010] As a further description of the above technical solution:

[0011] The stacked electromagnetic ball valve group, the stacked one-way valve group, the stacked double overflow valve group and the electromagnetic reversing valve form a group, and the stacked electromagnetic ball valve group, the stacked one-way valve group, the stacked double overflow valve group and the electromagnetic reversing valve are stacked and installed together in sequence from bottom to top.

[0012] As a further description of the above technical solution:

[0013] The stacked double overflow valve group and the electromagnetic reversing valve form a group, and the stacked double overflow valve group and the electromagnetic reversing valve are stacked and installed together in sequence from bottom to top.

[0014] As a further description of the above technical solution:

[0015] The main valve block of the felling machine is provided with an A1 port, an A2 port, an A3 port, an A4 port, an A5 port, an A6 port, a B1 port, a B2 port, a B3 port, a B4 port, a B5 port, and a B6 port.

[0016] As a further description of the above technical solution:

[0017] The reversing valve block is provided with a P port, an A7 port, and an A8 port.

[0018] The utility model has the following beneficial effects:

[0019] Compared with the existing technology, the main valve group of the felling machine realizes multiple control functions by adopting an overall superimposed structure, is easy to integrate and miniaturize, has no external leakage, has a simple structure, is light in weight, and is easy to realize the linkage of external actuators. The product is used in the hydraulic equipment of the felling machine, reducing the overall structural size and weight of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural schematic diagram of the main valve group of a felling machine proposed by the utility model from a first perspective;

[0021] Figure 2 This is a structural schematic diagram of the main valve group of the felling machine proposed by the utility model from a second perspective;

[0022] Figure 3 This is a structural schematic diagram of the main valve group of a feller machine proposed by the utility model after the front view of the structural section;

[0023] Figure 4 The utility model is a schematic diagram of the main valve group of the felling machine.

[0024] Legend:

[0025] 1. Main valve block of feller; 2. Reversing valve block; 3. Proportional reversing valve; 4. Two-way plug-in; 5. Solenoid valve cover; 6. Cartridge-type one-way relief valve; 7. Cartridge-type relief valve; 8. Superimposed pressure reducing valve group; 9. Superimposed relief valve group; 10. Superimposed hydraulic control one-way valve; 11. Superimposed double relief valve group; 12. Superimposed electromagnetic ball valve group; 13. Superimposed one-way valve group; 14. Superimposed one-way speed regulating valve group; 15. Solenoid reversing valve. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Reference Figure 1-4 The main valve group of the felling machine provided by the utility model comprises a main valve block 1 of the felling machine, a reversing valve block 2 is fixedly connected to the side end of the main valve block 1 of the felling machine, a proportional reversing valve 3 is fixedly connected to the upper end of the reversing valve block 2, a cartridge-type one-way relief valve 6 and a cartridge-type relief valve 7 are installed on the reversing valve block 2, a solenoid valve cover plate 5 is fixedly connected to the front end of the reversing valve block 2, a two-way plug-in 4 is arranged inside the reversing valve block 2, and the two-way plug-in 4 is fixed to the solenoid valve cover plate 5 by screws; a plurality of oil passages are arranged inside the main valve block 1 of the felling machine, and the felling machine The upper end of the main valve block 1 is provided with a superimposed pressure reducing valve group 8, a superimposed relief valve group 9, a superimposed hydraulically controlled non-return valve 10, a superimposed double relief valve group 11, a superimposed electromagnetic ball valve group 12, a superimposed non-return valve group 13, a superimposed non-return speed regulating valve group 14 and an electromagnetic reversing valve 15; the feller main valve block 1 is provided with A1 port, A2 port, A3 port, A4 port, A5 port, A6 port, B1 port, B2 port, B3 port, B4 port, B5 port, B6 port; the reversing valve block 2 is provided with P port, A7 port, A8 port.

[0028] Specifically, the stacked pressure reducing valve group 8, the stacked relief valve group 9, the stacked hydraulic control check valve 10 and the electromagnetic reversing valve 15 are a group, and three groups are provided. The stacked pressure reducing valve group 8, the stacked relief valve group 9, the stacked hydraulic control check valve 10 and the electromagnetic reversing valve 15 are stacked and installed from bottom to top. The stacked pressure reducing valve group 8, the stacked one-way speed regulating valve group 14 and the electromagnetic reversing valve 15 are a group. The stacked pressure reducing valve group 8, the stacked one-way speed regulating valve group 14 and the electromagnetic reversing valve 15 are stacked and installed from bottom to top, and the stacked one-way speed regulating valve group 14 is provided with a J1 port. The stacked electromagnetic ball valve group 12, the stacked one-way valve group 13, the stacked double relief valve group 11 and the electromagnetic reversing valve 15 are a group. The stacked electromagnetic ball valve group 12, the stacked one-way valve group 13, the stacked double relief valve group 11 and the electromagnetic reversing valve 15 are stacked and installed from bottom to top. The stacked double relief valve group 11 and the electromagnetic reversing valve 15 are a group, and the stacked double relief valve group 11 and the electromagnetic reversing valve 15 are stacked and installed together from bottom to top. When working, long screws are used to connect and fix them during the stacking installation process to achieve pressure, flow and direction control of the hydraulic oil.

[0029] Working principle: The pressure oil enters the reversing valve block 2 from the P port through the pipeline, and the oil flows through the proportional reversing valve 3. By controlling the power of the proportional reversing valve 3, the pressure and flow of the hydraulic oil at the A7 or A8 port are controlled. The pressure can also be adjusted by the plug-in one-way relief valve 6; the hydraulic pressure of the P port is limited by the oil circuit composed of the two-way plug-in 4, the solenoid valve cover 5 and the plug-in relief valve 7. When the pressure exceeds the limit value, the load is unloaded to ensure the safety of the valve group; the hydraulic oil at the P port enters the superimposed pressure reducing valve group 8, the superimposed relief valve group 9, the superimposed hydraulic control one-way valve 10 and the solenoid reversing valve 15, and then passes through the A 1 or B1, A2 or B2, A6 or B6 ports for pressure and direction control; the hydraulic oil at the P port enters the superimposed pressure reducing valve group 8, the superimposed one-way speed regulating valve group 14 and the electromagnetic reversing valve 15, and then passes through the A3 or B3 or J1 port for pressure, flow and direction control; the hydraulic oil at the P port enters the superimposed electromagnetic ball valve group 12, the superimposed one-way valve group 13, the superimposed double overflow valve group 11 and the electromagnetic reversing valve 15, and then passes through the A4 or B4 port for pressure and direction control; the hydraulic oil at the P port enters the superimposed double overflow valve group 11 and the electromagnetic reversing valve 15, and then passes through the A5 or B5 port for pressure and direction control. In the whole process, pressure oil is provided to the external actuator, and the force and speed of the actuator are controlled. The valve block adopts cartridge valves and superimposed valves, which are easy to realize miniaturization and simple structure, reduce leakage of external pipes, reduce weight and reduce costs.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A main valve assembly for a felling machine, comprising a main valve block (1) for a felling machine, characterized in that: The side end of the main valve block (1) of the lumberjack is fixedly connected to a reversing valve block (2), the upper end of the reversing valve block (2) is fixedly connected to a proportional reversing valve (3), a plug-in check valve (6) and a plug-in overflow valve (7) are installed on the reversing valve block (2), the front end of the reversing valve block (2) is fixedly connected to a solenoid valve cover plate (5), a two-way plug-in (4) is arranged inside the reversing valve block (2), and the two-way plug-in (4) is fixed by screws. The main valve block (1) of the felling machine is fixed on the electromagnetic valve cover plate (5); a plurality of oil channels are arranged inside the main valve block (1) of the felling machine; the upper end of the main valve block (1) of the felling machine is provided with a stacked pressure reducing valve group (8), a stacked overflow valve group (9), a stacked hydraulically controlled non-return valve (10), a stacked double overflow valve group (11), a stacked electromagnetic ball valve group (12), a stacked non-return valve group (13), a stacked non-return speed regulating valve group (14) and an electromagnetic reversing valve (15).

2. The main valve assembly for a felling machine according to claim 1, characterized in that: The stacked pressure reducing valve group (8), the stacked overflow valve group (9), the stacked hydraulically controlled one-way valve (10) and the electromagnetic reversing valve (15) form a group, and three groups are provided. The stacked pressure reducing valve group (8), the stacked overflow valve group (9), the stacked hydraulically controlled one-way valve (10) and the electromagnetic reversing valve (15) are stacked and installed together in sequence from bottom to top.

3. The main valve assembly for a felling machine according to claim 1, characterized in that: The stacked pressure reducing valve group (8), the stacked one-way speed regulating valve group (14) and the electromagnetic reversing valve (15) form a group. The stacked pressure reducing valve group (8), the stacked one-way speed regulating valve group (14) and the electromagnetic reversing valve (15) are stacked and installed together in sequence from bottom to top, and a J1 port is provided on the stacked one-way speed regulating valve group (14).

4. The main valve assembly for a felling machine according to claim 1, characterized in that: The stacked electromagnetic ball valve group (12), the stacked one-way valve group (13), the stacked double overflow valve group (11) and the electromagnetic reversing valve (15) form a group, and the stacked electromagnetic ball valve group (12), the stacked one-way valve group (13), the stacked double overflow valve group (11) and the electromagnetic reversing valve (15) are stacked and installed together in sequence from bottom to top.

5. The main valve assembly for a felling machine according to claim 1, characterized in that: The stacked double overflow valve group (11) and the electromagnetic reversing valve (15) form a group, and the stacked double overflow valve group (11) and the electromagnetic reversing valve (15) are stacked and installed together in sequence from bottom to top.

6. The main valve assembly for a felling machine according to claim 1, characterized in that: The felling machine main valve block (1) is provided with an A1 port, an A2 port, an A3 port, an A4 port, an A5 port, an A6 port, a B1 port, a B2 port, a B3 port, a B4 port, a B5 port, and a B6 port.

7. The main valve assembly for a felling machine according to claim 1, characterized in that: The reversing valve block (2) is provided with a P port, an A7 port, and an A8 port.

Images