Direction adjusting control device of hydraulic multi-way valve

Abstract

The utility model discloses a hydraulic multi-way valve direction adjusting control device which comprises a valve body, one end of the valve body is provided with a feeding port, the two ends of the valve body are provided with a first discharging port and a second discharging port respectively, a valve element is arranged in the valve body, the top of the valve element is fixedly connected with a rotating shaft, the outer side of the rotating shaft is fixedly connected with a disc, and the disc is fixedly connected with the valve element. A plurality of semicircular grooves with equal angles are formed in the bottom of the disc, and a plurality of cylinders are fixedly connected to the outer surface of the valve body. Errors caused by manually changing the angle of the hand wheel can be reduced, so that the control effect is improved, the influence on the working efficiency is reduced, the rotating shaft and the valve element connected to the rotating shaft can be driven to rotate, opening or closing of the valve is achieved, stability and accuracy of rotation are guaranteed, simple numerical value reading and adjusting can be achieved, and the working efficiency is improved. And the operation convenience of the device is improved.

Description

A hydraulic multi-way valve directional control device Technical Field

[0001] This utility model relates to the field of hydraulic multi-way valve technology, and in particular to a hydraulic multi-way valve directional control device. Background Technology

[0002] Hydraulic multi-way valves are key control components in hydraulic systems, widely used in mobile machinery such as construction machinery and lifting / transportation equipment. They control the reversing of hydraulic actuators, allowing hydraulic oil to control the direction and speed of the actuators' movement. With the development of related technologies, higher performance requirements are being placed on hydraulic multi-way valve reversing control devices.

[0003] In traditional hydraulic multi-way valve directional control, there are two main types: direct-acting and pilot-operated. In the direct-acting type, the main valve core movement is usually controlled by changing the handwheel angle, thereby controlling the directional control of the hydraulic multi-way valve. However, since the handwheel angle is usually changed manually, the control accuracy depends on the operator's skill and experience. Especially for complex and delicate control requirements, the control effect is often unsatisfactory, resulting in poor control performance and reduced work efficiency. In order to better address the above problems, promote the development of industry technology, and improve core competitiveness, this application proposes a new composition structure that is different from the existing technology. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a hydraulic multi-way valve directional control device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A hydraulic multi-way valve directional control device includes a valve body with an inlet at one end and a first outlet and a second outlet at both ends. A valve core is housed within the valve body, with a rotating shaft fixedly connected to the top of the valve core. A disc is fixedly connected to the outer side of the rotating shaft, and the bottom of the disc has multiple equally spaced semi-circular grooves. Multiple cylinders are fixedly connected to the outer surface of the valve body, each cylinder containing a damping return spring. A semi-circular protrusion is fixedly connected to the top of each damping return spring, and the semi-circular protrusion engages with the semi-circular groove. A control component for steering the valve core is located on the outer side of the valve body.

[0007] As a further embodiment of this utility model, the control component includes a worm gear, which is keyed to the outside of the rotating shaft. Multiple fixing brackets are fixedly connected to the outside of the valve body, and a housing is fixedly connected between the multiple fixing brackets. The rotating shaft is rotatably connected to the housing, and a worm is rotatably connected to the housing through a bearing, and the worm meshes with the worm gear.

[0008] As a further embodiment of this utility model, a pointer is fixedly connected to the outer side of the housing, and scale lines are integrally formed on the outer side of the disc.

[0009] As a further embodiment of this utility model, a threaded groove is provided on the outer side of the worm, and a tightening nut is threadedly connected to the outer side of the worm, and the tightening nut slides along the threaded groove.

[0010] As a further improvement of this invention, the valve body is provided with multiple sealing rings.

[0011] As a further embodiment of this utility model, a handwheel is fixedly connected to one side of the worm gear, and the surface of the handwheel is formed with anti-slip texture.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. This utility model includes a disc, and the semi-circular groove at the bottom of the disc cooperates with the semi-circular protrusion to achieve mechanical locking of the angle, reduce the error caused by manually changing the handwheel angle, thereby increasing the control effect and reducing the impact on work efficiency.

[0014] 2. This utility model is equipped with a worm gear. When the worm rotates, it meshes with the worm gear, causing the worm gear to rotate as well. This drives the rotating shaft and the valve core connected to it to rotate, thereby realizing the opening or closing of the valve and ensuring smooth and precise rotation.

[0015] 3. This utility model includes a pointer. Through the cooperation of the pointer and the scale line, the movement of the pointer will be clearly reflected on the scale line, realizing convenient numerical reading and adjustment, and improving the ease of operation of the device. Attached Figure Description

[0016] Figure 1 is a three-dimensional structural schematic diagram of a hydraulic multi-way valve directional control device proposed in this utility model;

[0017] Figure 2 is a schematic diagram of the rear structure of a hydraulic multi-way valve directional control device proposed in this utility model;

[0018] Figure 3 is a partial cross-sectional view of a hydraulic multi-way valve directional control device proposed in this utility model.

[0019] Figure 4 is a schematic cross-sectional view of the housing structure of a hydraulic multi-way valve directional control device proposed in this utility model.

[0020] Figure 5 is a partially enlarged structural schematic diagram of a hydraulic multi-way valve directional control device proposed in this utility model;

[0021] Figure 6 is a cross-sectional view of the valve body of a hydraulic multi-way valve directional control device proposed in this utility model.

[0022] In the diagram: 1. Valve body; 2. Inlet; 3. First outlet; 4. Housing; 5. Handwheel; 6. Fixing bracket; 7. Second outlet; 8. Scale line; 9. Disc; 10. Cylinder; 11. Semi-circular groove; 12. Worm gear; 13. Shaft; 14. Worm; 15. Semi-circular protrusion; 16. Damping return spring; 17. Sealing ring; 18. Valve core; 19. Tightening nut; 20. Threaded groove; 21. Pointer. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. The described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] Referring to Figures 1-6, a hydraulic multi-way valve directional control device includes a valve body 1. One end of the valve body 1 is provided with a feed port 2, and the two ends of the valve body 1 are respectively provided with a first discharge port 3 and a second discharge port 7. A valve core 18 is provided inside the valve body 1. The valve core 18 is spherical and has a right-angle channel. A rotating shaft 13 is welded to the top of the valve core 18. A disc 9 is fixed to the outside of the rotating shaft 13 by bolts. A plurality of semi-circular grooves 11 with equal angles are provided at the bottom of the disc 9.

[0025] Multiple cylinders 10 are welded to the outer surface of the valve body 1. Each cylinder 10 is provided with a damping return spring 16. A semi-circular protrusion 15 is welded to the top of each damping return spring 16, and the semi-circular protrusion 15 is engaged with the semi-circular groove 11.

[0026] The valve body 1 has a control component on its outer side that rotates the valve core 18. The control component includes a worm gear 12, which is keyed to the outer side of the rotating shaft 13. Multiple fixing brackets 6 are fixedly connected to the outer side of the valve body 1. A housing 4 is fixedly connected between the multiple fixing brackets 6. The rotating shaft 13 is rotatably connected to the housing 4. A worm 14 is rotatably connected to the housing 4 through a bearing. The worm 14 meshes with the worm gear 12. The rotation of the worm 14 can drive the worm gear 12 and the rotating shaft 13 to rotate, thereby driving the rotating shaft 13 and the valve core connected to it to rotate, thus realizing the opening or closing of the valve 18. This ensures smooth and precise rotation. The fixing brackets 6 can fix the housing 4 to prevent the housing 4 from rotating with the rotating shaft 13, increasing the stability of the device.

[0027] The outer side of the worm 14 is provided with a threaded groove 20, and a tightening nut 19 is threadedly connected to the outer side of the worm 14. The tightening nut 19 slides along the threaded groove 20, which can lock the worm 14 to prevent the valve core 18 from being forced to rotate and increase the stability of the device.

[0028] In use, the rotating shaft 13 rotates and drives the disc 9 to rotate, causing the semi-circular protrusion 15 to disengage from the initial semi-circular groove 11. When the disc 9 drives the semi-circular groove 11 to rotate to a certain angle, the semi-circular protrusion 15 is engaged in other semi-circular grooves 11, thereby positioning the direction of the valve core 18. The sound of collision and the feeling of jerk indicate that the rotation is in place, reducing the error caused by manually changing the angle of the handwheel 5, thereby increasing the control effect and reducing the impact on work efficiency.

[0029] In this utility model, a pointer 21 is fixed to the outer side of the housing 4 by bolts, and a scale line 8 is integrally formed on the outer side of the disc 9. Through the cooperation between the pointer 21 and the scale line 8, the movement of the pointer 21 will be clearly reflected on the scale line 8, realizing convenient numerical reading and adjustment, and improving the ease of operation of the device.

[0030] The valve body 1 is provided with multiple sealing rings 17, which seal the connection between the valve core 18 and the valve body 1, thereby increasing the stability of the device. A handwheel 5 is welded to one side of the worm gear 14. The surface of the handwheel 5 is formed with anti-slip texture, which makes it easier for the operator to rotate the worm gear 14 through the handwheel 5, thereby increasing the convenience of the device.

[0031] Working principle: When the multi-way valve needs to be directional controlled, loosen the tightening nut 19, then turn the handwheel 5 to make it rotate the worm gear 14. Since the worm wheel 12 and worm gear 14 are meshed, the rotation of the worm gear 14 drives the worm wheel 12 and the rotating shaft 13 to rotate, thereby driving the valve core 18 to rotate. The rotation of the rotating shaft 13 simultaneously drives the disc 9 to rotate. Since the bottom of the disc 9 has multiple semi-circular grooves 11, and the semi-circular grooves 11 are engaged with the semi-circular protrusions 15, when the disc 9 rotates, the multiple semi-circular protrusions on the valve body 1... The circular protrusion 15 disengages from the initial semi-circular groove 11. Since the bottom of the semi-circular protrusion 15 is equipped with a damping return spring 16, when the disc 9 drives the semi-circular groove 11 to rotate to a certain angle, the semi-circular protrusion 15 is engaged in other semi-circular grooves 11. Thus, the jolt when the semi-circular protrusion 15 enters the semi-circular groove 11 provides feedback on the direction and position of the valve core 18, confirming that it has been rotated to the correct position. This reduces the error caused by manually changing the angle of the handwheel 5, thereby increasing the control effect and reducing the impact on work efficiency.

[0032] Furthermore, although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydraulic multi-way valve directional control device, comprising a valve body (1), characterized in that, The valve body (1) has a feed inlet (2) at one end and a first discharge port (3) and a second discharge port (7) at both ends. The valve body (1) has a valve core (18) inside. A rotating shaft (13) is fixedly connected to the top of the valve core (18). A disc (9) is fixedly connected to the outside of the rotating shaft (13). A plurality of semi-circular grooves (11) with equal angles are opened at the bottom of the disc (9). A plurality of cylinders (10) are fixedly connected to the outer surface of the valve body (1). A damping return spring (16) is provided inside each of the plurality of cylinders (10). A semi-circular protrusion (15) is fixedly connected to the top of each of the plurality of damping return springs (16), and the semi-circular protrusion (15) is engaged with the semi-circular groove (11). A control component for turning the valve core (18) is provided on the outside of the valve body (1).

2. The hydraulic multi-way valve directional control device according to claim 1, characterized in that, The control component includes a worm gear (12), which is keyed to the outside of the rotating shaft (13). Multiple fixing brackets (6) are fixedly connected to the outside of the valve body (1). A housing (4) is fixedly connected between the multiple fixing brackets (6). The rotating shaft (13) is rotatably connected to the housing (4). A worm (14) is rotatably connected to the housing (4) through a bearing. The worm (14) meshes with the worm gear (12).

3. The hydraulic multi-way valve directional control device according to claim 2, characterized in that, A pointer (21) is fixedly connected to the outside of the housing (4), and a scale line (8) is integrally formed on the outside of the disc (9).

4. The hydraulic multi-way valve directional control device according to claim 2, characterized in that, The worm (14) has a threaded groove (20) on its outer side, and a tightening nut (19) is threadedly connected to the outer side of the worm (14), and the tightening nut (19) slides along the threaded groove (20).

5. A hydraulic multi-way valve directional control device according to claim 3, characterized in that, The valve body (1) is provided with multiple sealing rings (17).

6. The hydraulic multi-way valve directional control device according to claim 4, characterized in that, A handwheel (5) is fixedly connected to one side of the worm (14), and the surface of the handwheel (5) is formed with anti-slip texture.

Images