Hydraulic motor valve body with adjustable flow

Abstract

The utility model discloses a hydraulic motor valve body with adjustable flow, which relates to the technical field of hydraulic motors and comprises a valve body, a channel is arranged in the valve body, a valve core is slidably arranged in the middle of the channel, a rotating rod is rotatably arranged in the middle of the valve body, a lead screw is arranged at one end of the rotating rod, and a valve rod is arranged at the other end of the rotating rod. The surface of the lead screw is in threaded connection with a sliding plate through a lead screw nut, two push rods are symmetrically arranged on one side of the sliding plate, a pressing block is arranged at one ends of the two push rods, the pressing block is sleeved with the valve element, a spring is arranged between the valve element and the pressing block, and a limiting ring is arranged in the channel. The hydraulic motor has the advantages that fine regulation and control of the flow of the hydraulic motor valve body can be achieved by adjusting the elastic limit of the spring, the higher-standard flow regulation requirement is met, the performance potential of the hydraulic motor is brought into full play, and the overall performance of the hydraulic motor is improved.

Description

Technical Field

[0001] The utility model relates to a hydraulic motor valve body, in particular to a hydraulic motor valve body with adjustable flow, belonging to the technical field of hydraulic motors. Background Art

[0002] A hydraulic motor, an actuator in a hydraulic system, converts the hydraulic pressure energy provided by a hydraulic pump into mechanical energy (torque and speed) at its output shaft. Also known as an oil motor, it is primarily used in injection molding machinery, ships, hoists, engineering machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, marine machinery, petrochemical industry, and port machinery. The valve body, a key component in a hydraulic motor, controls the direction and flow of the hydraulic oil, directly impacting its performance.

[0003] The functions of traditional hydraulic motor valve bodies are usually limited to basic opening and closing control and cannot adjust their own flow. This cannot meet the higher requirements for fine flow adjustment, which may lead to the hydraulic motor's performance not being fully utilized or even performance degradation. Utility Model Content

[0004] The purpose of the present utility model is to provide a hydraulic motor valve body with adjustable flow, so as to solve the problem raised in the above background technology that the traditional hydraulic motor valve body has limited functions, only basic opening and closing control, and cannot finely adjust the flow, which affects the performance of the motor and may cause performance degradation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic motor valve body with an adjustable flow, comprising a valve body body, a channel is opened inside the valve body body, a valve core is slidably provided in the middle of the channel, a rotating rod is rotatably provided in the middle of the valve body body, a screw rod is provided at one end of the rotating rod, a slide is threadedly connected to the surface of the screw rod through a screw nut, two push rods are symmetrically provided on one side of the slide, a pressure block is provided at one end of the two push rods, the valve core is sleeved on the outside of the pressure block, a spring is provided between the valve core and the pressure block, and a limit ring is provided inside the channel.

[0006] As a preferred technical solution of the present invention, an oil inlet hole is provided on one side of the bottom end of the valve body, the oil inlet hole is connected to the channel, and an oil inlet pipe is provided at the bottom end of the oil inlet hole.

[0007] As a preferred technical solution of the present invention, an oil outlet hole is provided on the other side of the bottom end of the valve body, the oil outlet hole is connected to the channel, and an oil outlet pipe is provided at the bottom end of the oil outlet hole, and the bottom ends of the oil inlet pipe and the oil outlet pipe are both provided with mounting plates, and a plurality of evenly spaced mounting holes are opened on the surface of the mounting plate.

[0008] As an optimal technical solution of the present invention, a protective shell is provided on one side of the valve body, the other end of the rotating rod passes through the valve body and extends to the interior of the protective shell, and an adjusting component is provided inside the protective shell, the adjusting component includes a worm gear, the worm gear is fixedly mounted on the end of the rotating rod, and one side of the worm gear is meshedly connected with a worm.

[0009] As a preferred technical solution of the present invention, the bottom end of the worm is rotatably connected to the inner wall of the protective shell, and the top end of the worm passes through the protective shell and is provided with a knob.

[0010] As a preferred technical solution of the present invention, a mechanical seal is provided between the valve body and the rotating rod, and one end of the valve core is fitted with one side of the limiting ring.

[0011] As a preferred technical solution of the present invention, a sliding groove that slides with the slide is provided inside the valve body.

[0012] As a preferred technical solution of the present invention, the material of the valve body is stainless steel, and the material of the valve core is alloy steel.

[0013] Compared with the related art, the hydraulic motor valve body with adjustable flow provided by the utility model has the following beneficial effects:

[0014] Through the setting adjustment component, the rotation of the knob drives the worm, which in turn causes the worm wheel to rotate. This action can synchronously drive the rotating rod and the screw to rotate in the forward or reverse direction. This chain reaction enables the slide plate and the two push rods to move smoothly in the horizontal direction, thereby pushing the pressure block to move inside the valve core, which can effectively compress the spring built into the valve core and adjust its elastic limit, thereby playing a key regulating role in the opening and closing control process of the valve core, and thus realizing fine control of the flow of the hydraulic motor valve body, which not only meets the higher standard flow regulation requirements, but also greatly exerts the performance potential of the hydraulic motor and improves its overall performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the utility model;

[0016] Figure 2 This is one of the cross-sectional structural diagrams of the valve body of the utility model;

[0017] Figure 3 This is one of the cross-sectional structural diagrams of the valve core of the utility model;

[0018] Figure 4 This is the second schematic diagram of the cross-sectional structure of the valve core of the utility model;

[0019] Figure 5 For this utility model Figure 3 A schematic diagram of the enlarged structure at point A;

[0020] Figure 6 This is the second schematic diagram of the cross-sectional structure of the valve body of the present invention.

[0021] In the figure: 1. Valve body; 2. Channel; 3. Valve core; 4. Rotating rod; 5. Screw rod; 6. Slide plate; 7. Push rod; 8. Pressure block; 9. Spring; 10. Limiting ring; 11. Oil inlet hole; 12. Protective shell; 13. Adjustment assembly; 1301. Worm gear; 1302. Worm; 1303. Knob; 14. Oil outlet pipe; 15. Slide groove; 16. Mounting plate; 17. Oil outlet hole; 18. Oil inlet pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-6 The utility model provides a hydraulic motor valve body with adjustable flow, including a valve body 1. The valve body 1 is an existing device that can be installed inside a hydraulic motor. A channel 2 is opened inside the valve body 1. A valve core 3 is slidably provided in the middle of the channel 2. A sealing ring is provided at the connection between the channel 2 and the valve core 3 to facilitate sealing. A rotating rod 4 is rotatably provided in the middle of the valve body 1. A screw rod 5 is provided at one end of the rotating rod 4. A slide plate 6 is threadedly connected to the surface of the screw rod 5 through a screw nut. Two push rods 7 are symmetrically provided on one side of the slide plate 6. A pressure block 8 is provided at one end of the two push rods 7. The forward and reverse rotation of the screw rod 5 can drive the slide plate 6 on the surface of the screw rod 5 to move in the horizontal direction. The push rod 7 and the pressure block 8 are combined, so that the pressure block 8 moves inside the valve core 3, and then can squeeze the spring 9 set at the valve core 3. By changing the elastic limit of the spring 9 itself, the valve core 3 can be adjusted during opening and closing control, and the flow of the hydraulic motor valve body itself can be adjusted to meet the higher requirements for fine flow adjustment, so that the performance of the hydraulic motor can be fully utilized and its own performance can be improved. The valve core 3 is sleeved on the outside of the pressure block 8, and a spring 9 is provided between the valve core 3 and the pressure block 8 to facilitate the support of the valve core 3. A limit ring 10 is provided inside the channel 2. When adjusting its flow, the limit ring 10 is raised to block and limit the valve core 3.

[0024] A protective shell 12 is provided on one side of the valve body 1, and a scale line is provided on the protective shell 12. The rotation of the knob 1303, in conjunction with the pointer on its surface and the scale line, can be used to accurately control the rotation of the worm 1302. The other end of the rotating rod 4 passes through the valve body 1 and extends to the interior of the protective shell 12. An adjusting component 13 is provided inside the protective shell 12. The adjusting component 13 includes a worm gear 1301, which is fixedly mounted on the end of the rotating rod 4. A worm 1302 is meshed with one side of the worm gear 1301. The rotation of the worm gear 1302 drives the meshing worm gear 1301 and the rotating rod 4 to rotate synchronously, thereby driving the screw rod 5 to rotate synchronously in forward and reverse directions.

[0025] The bottom end of the worm 1302 is rotatably connected to the inner wall of the protective shell 12. The top end of the worm 1302 passes through the protective shell 12 and is provided with a knob 1303, which supports the bottom end of the worm 1302 for rotation and plays a role in stabilization and reinforcement. The knob 1303 can be used to drive the worm 1302 to rotate.

[0026] A mechanical seal is provided between the valve body 1 and the rotating rod 4 to facilitate sealing. One end of the valve core 3 is in contact with one side of the limiting ring 10, so that the pressure block 8 can limit the position of the valve core 3 by the limiting ring 10 during movement, which is convenient for adjustment.

[0027] An oil inlet hole 11 is provided on one side of the bottom end of the valve body 1. The oil inlet hole 11 is connected to the channel 2, and an oil inlet pipe 18 is provided at the bottom end of the oil inlet hole 11. The oil inlet hole 11 and the oil inlet pipe 18 are provided to facilitate the transportation of oil.

[0028] An oil outlet hole 17 is provided on the other side of the bottom end of the valve body 1. The oil outlet hole 17 is connected to the channel 2, and an oil outlet pipe 14 is provided at the bottom end of the oil outlet hole 17. The bottom ends of the oil inlet pipe 18 and the bottom ends of the oil outlet pipe 14 are both provided with a mounting plate 16, and a plurality of mounting holes evenly spaced are opened on the surface of the mounting plate 16. The oil outlet hole 17 facilitates the oil outlet. At the same time, the mounting plate 16 and the mounting holes provided at the oil inlet pipe 18 and the oil outlet pipe 14, in combination with relevant fasteners, can facilitate the installation of the valve body 1 to the hydraulic motor.

[0029] The valve body 1 is provided with a sliding groove 15 for slidingly cooperating with the slide 6. The sliding groove 15 provided on the valve body 1 ensures that the slide 6 is not restricted in the sliding process.

[0030] The material of the valve body 1 is stainless steel. The valve body 1 is made of stainless steel as a whole. Stainless steel has excellent corrosion resistance and high temperature resistance, and is suitable for a variety of corrosive media and high temperature environments. The material of the valve core 3 is alloy steel. The valve core 3 is made of alloy steel. Alloy steel has higher strength and hardness, as well as good wear resistance and corrosion resistance.

[0031] When in use, first place the hydraulic motor valve body at a suitable working location, and use the mounting plate 16 and mounting holes provided at the oil inlet pipe 18 and the oil outlet pipe 14, in combination with relevant bolts and nuts, to install it to the hydraulic motor. After the installation is completed, oil is added to the inside of the oil inlet pipe 18, and the oil enters the inside of the channel 2 through the oil inlet hole 11. The pressure generated by the oil causes the valve core 3 to move in the opposite direction, thereby pushing the valve core 3 to move inside the channel 2. At this time, the oil is discharged through the oil outlet hole 17; when it is necessary to adjust the flow rate of the valve body 1 itself, the worm 1302 is driven to rotate by the knob 1303, and the rotation of the knob 1303 is adjusted in combination with the scale line at the protective shell 12 and the pointer at the knob 1303. The rotation can be precisely adjusted. By rotating the worm 1302 and in combination with the meshing worm wheel 1301, the rotating rod 4 and the screw rod 5 can be driven to rotate in the forward and reverse directions. Combined with the screw nut and the slide groove 15, the slide plate 6 can be fine-tuned along the surface of the screw rod 5, so that the two push rods 7 can move smoothly in the horizontal direction, thereby pushing the pressure block 8 to produce displacement inside the valve core 3. Combined with the limit ring 10, the valve core 3 is limited and blocked, so that the pressure block 8 compresses the spring 9 built into the valve core 3 and fine-tunes its elastic limit. Through the change in the elastic limit of the spring 9 itself, it plays a key regulating role in the opening and closing control process of the valve core 3, thereby realizing fine regulation of the flow rate of the hydraulic motor valve body, and finally the hydraulic motor can be used.

[0032] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic motor valve body with adjustable flow, comprising a valve body (1), characterized in that: A channel (2) is provided inside the valve body (1), a valve core (3) is provided in a sliding manner in the middle of the channel (2), a rotating rod (4) is provided in the middle of the valve body (1), a screw rod (5) is provided at one end of the rotating rod (4), a slide plate (6) is connected to the surface of the screw rod (5) through a screw nut, two push rods (7) are symmetrically provided on one side of the slide plate (6), a pressure block (8) is provided at one end of the two push rods (7), the valve core (3) is sleeved on the outside of the pressure block (8), a spring (9) is provided between the valve core (3) and the pressure block (8), and a limit ring (10) is provided inside the channel (2).

2. The hydraulic motor valve body with adjustable flow according to claim 1, characterized in that: An oil inlet hole (11) is provided on one side of the bottom end of the valve body (1), the oil inlet hole (11) is communicated with the channel (2), and an oil inlet pipe (18) is provided at the bottom end of the oil inlet hole (11).

3. The hydraulic motor valve body with adjustable flow according to claim 2, characterized in that: An oil outlet hole (17) is provided on the other side of the bottom end of the valve body (1), the oil outlet hole (17) is communicated with the channel (2), and an oil outlet pipe (14) is provided at the bottom end of the oil outlet hole (17). The bottom ends of the oil inlet pipe (18) and the oil outlet pipe (14) are both provided with a mounting plate (16), and a surface of the mounting plate (16) is provided with a plurality of mounting holes that are evenly spaced.

4. The hydraulic motor valve body with adjustable flow according to claim 1, characterized in that: A protective shell (12) is provided on one side of the valve body (1), the other end of the rotating rod (4) passes through the valve body (1) and extends to the interior of the protective shell (12), and an adjusting component (13) is provided inside the protective shell (12), and the adjusting component (13) includes a worm gear (1301), the worm gear (1301) is fixedly mounted on the end of the rotating rod (4), and one side of the worm gear (1301) is meshedly connected with a worm (1302).

5. The hydraulic motor valve body with adjustable flow according to claim 4, characterized in that: The bottom end of the worm (1302) is rotatably connected to the inner wall of the protective shell (12), and the top end of the worm (1302) passes through the protective shell (12) and is provided with a knob (1303).

6. The hydraulic motor valve body with adjustable flow according to claim 1, characterized in that: A mechanical seal is provided between the valve body (1) and the rotating rod (4), and one end of the valve core (3) is in contact with one side of the limiting ring (10).

7. The hydraulic motor valve body with adjustable flow according to claim 1, characterized in that: The valve body (1) is provided with a sliding groove (15) in sliding engagement with the slide plate (6).

8. The hydraulic motor valve body with adjustable flow according to claim 1, characterized in that: The material of the valve body (1) is stainless steel, and the material of the valve core (3) is alloy steel.

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