A special ball valve for controlling the oil circuit of a hydraulic motor

Abstract

The present invention discloses a special ball valve for controlling the oil circuit of an oil motor, specifically relating to the technical field of ball valves, including a support seat, a regulating assembly provided on the support seat, the regulating assembly including an inner liner on the top of the support seat, a valve body sleeved on the outer side of the inner liner, and a guide cavity provided on the valve body. The present invention avoids abnormal pressure increase in the reinforced temporary arc chamber and the phenomenon of backflow when the medium is transported into the reinforced temporary arc chamber by transporting the medium into the return pipe through the reinforced temporary arc chamber, and adjusts the position of the discharge hole so that the discharge hole can be connected to each branch flow hole one by one. At the same time, by adjusting the position of the discharge hole, the medium can be transported to different branch pipes to facilitate the regulation of the medium transport direction. It is easy to quickly switch the medium transport direction while blocking the remaining branch flow holes, thereby improving the convenience of medium diversion and transport.

Description

Technical Field

[0001] The present invention relates to the technical field of ball valves, and more particularly to a special ball valve for controlling an oil circuit of an oil motor. Background Art

[0002] A hydraulic actuator is a type of hydraulic actuator commonly found in equipment such as steam and gas turbines. It uses the pressure of hydraulic oil to drive valves or regulating mechanisms to control the equipment's operating status (such as the opening of a steam turbine's intake valve). A ball valve installed in the hydraulic circuit of a hydraulic actuator is used to open, close, regulate, or switch the oil circuit, ensuring safe and precise control of oil flow and pressure.

[0003] Among them, the patent with announcement number CN222296599U discloses a hydraulic oil circuit switching ball valve for excavator attachments, including a valve body, a link pin shaft movably connected to the middle position of the valve body, a first ball valve steel ball is arranged above the link pin shaft, and a second ball valve steel ball is arranged below the link pin shaft. An A1 oblique oil port, a C1 oblique oil port, and an H oil port are opened on one side of the valve body, and an A2 oblique oil port, a C2 oblique oil port, and an E oil port are opened on the opposite side of the valve body. The upper part of the inner cavity of the valve body is divided into an A oil circuit and a B oil circuit by the first ball valve steel ball;

[0004] When this structure is in use, the lower part of the inner cavity of the valve body is divided into oil circuit C and oil circuit D by the second ball valve steel ball, and plugs are provided on both oil circuits B and D. Oil ports F and G are provided on the other side of the valve body, and the two ball valves connected in series are used to achieve the two-position six-way reversing requirement. Eight reversing oil ports can be arranged as required. However, when this structure is in use, it is unable to perform corresponding flow direction conversion and adjustment according to the number of pipelines required for medium transportation. It is not easy to switch to a single medium transportation direction, and it is not easy to reduce the impact force of the medium when the medium is directly transported. Backflow is prone to occur, affecting the medium transportation efficiency. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a special ball valve for controlling the oil circuit of a hydraulic motor, aiming to solve the problems raised in the above-mentioned background technology.

[0006] The present invention provides the following technical solution: a special ball valve for controlling the oil circuit of an oil motor, comprising a support seat, on which a regulating assembly is provided;

[0007] The regulating assembly includes an inner lining tube on the top of the support seat, a valve body is sleeved on the outer side of the inner lining tube, a guide cavity is opened on the valve body, a plurality of branch flow holes are distributed inside the guide cavity and pass through the valve body, and a plurality of branch flow holes are provided on the surface of each of the branch flow holes for conveying the medium;

[0008] A ball core is provided in the middle of the inner liner, a first return spring extending to the top of the inner cavity of the inner liner is provided on the top of the ball core, and a diverter plate is fixedly provided on the bottom of the ball core;

[0009] A reinforced temporary arc storage chamber is fixedly provided at the bottom of the support seat, a return pipe for diverting is fixedly provided at the bottom of the reinforced temporary arc storage chamber, an input pipe for diverting is fixedly provided on one side of the reinforced temporary arc storage chamber, a reduction block is slidably connected to the inside of the return pipe, a plurality of top rods are fixedly provided at the top of the reduction block, and a limiting ring is fixedly provided at the top of each of the top rods, the limiting ring is located at the bottom of the diverter plate, and a plurality of frame openings are opened through the limiting ring, an impact elimination chamber is opened at the bottom of the reduction block, and the shape of the impact elimination chamber is set to be conical;

[0010] It can be seen that in the above technical solution, the medium in the return pipe flows through the reduction block and gathers between the reduction block and the return pipe. As the medium in the impact elimination chamber gathers more and more, the reduction block drives the push rod and the limit ring to move upward, and then the diverter plate pushes the ball core to move upward. When the ball core moves upward, the first return spring is compressed, and then the medium can be transported into the inner liner, and the medium in the enhanced temporary arc chamber is transported to the return pipe, thereby avoiding abnormal pressure increase in the enhanced temporary arc chamber, avoiding backflow when the medium is blocked when being transported to the enhanced temporary arc chamber, and avoiding medium backflow interfering with the normal process.

[0011] wherein the cam is secured to the bottom of the valve body with a secure grip on the valve body and securely holds the valve body in place until the cam is in a secure position relative to the valve body.

[0012] It can be seen that in the above technical solution, after the medium is transported into the inner liner, the handle is rotated to drive the turntable and the inner liner to rotate, thereby realizing the function of adjusting the position of the discharge hole, so that the discharge hole can be connected with each branch flow hole one by one, and at the same time, by adjusting the position of the discharge hole, the medium can be transported to different branch pipes, so as to facilitate the regulation of the medium delivery direction, and when the turntable rotates, it drives the arc top block to move, and the arc slope contacts the baffle, and then the baffle can be displaced in the guide cavity, so that the branch flow hole can be connected with the discharge hole, so as to ensure the accuracy of the medium in the inner liner being transported to the branch flow hole into the branch pipe, and when the arc top block is displaced to lift the baffle, the second return spring can be stretched, so that when the arc top block is not in contact with the baffle, the baffle can be reset by the elasticity of the second return spring itself, so as to facilitate the sealing of the branch flow hole, and it is easy to quickly switch the medium delivery direction while also sealing the remaining branch flow holes, thereby improving the convenience of medium steering and transportation.

[0013] Technical effects and advantages of the present invention:

[0014] 1. The present invention causes the medium in the impact reduction chamber to gather more and more, so that the reduction block drives the push rod and the limit ring to move upward, and then the diverter plate pushes the ball core to move upward. When the ball core moves upward, the first return spring is compressed, and then the medium can be transported into the inner liner;

[0015] 2. The present invention strengthens the method of delivering the medium in the temporary arc chamber to the return pipe, thereby avoiding abnormal pressure increase in the temporary arc chamber, preventing the medium from being blocked and flowing back when being delivered to the strengthened temporary arc chamber, and preventing the medium backflow from interfering with the normal process. By rotating the handle to drive the turntable and the inner liner to rotate, the function of adjusting the position of the discharge hole is realized, so that the discharge hole can be connected to each branch flow hole one by one. At the same time, by adjusting the position of the discharge hole, the medium can be delivered to different branch pipes, so as to facilitate the control of the medium delivery direction.

[0016] 3. In the present invention, when the turntable rotates, the arc top block is displaced, and the arc slope contacts the baffle, which in turn enables the baffle to displace in the guide cavity, so that the distribution flow hole can be connected with the discharge hole, thereby ensuring the accuracy of the medium in the inner liner being transported to the diversion pipe through the distribution flow hole;

[0017] 4. In the present invention, when the arc top block is displaced to lift the baffle, the second return spring can be stretched. This allows the baffle to be elastically reset by the second return spring when the arc top block is no longer in contact with the baffle, thereby facilitating the blocking of the branch flow holes. This facilitates rapid switching of the medium conveying direction while also blocking the remaining branch flow holes, thereby improving the convenience of medium diversion and conveying.

[0018] In summary, through the corresponding coordinated use of various structures, the medium in the temporary arc chamber is transported to the return pipe through the enhanced temporary arc chamber, thereby avoiding abnormal pressure increase in the enhanced temporary arc chamber, avoiding the phenomenon of backflow caused by obstruction when the medium is transported to the enhanced temporary arc chamber, and avoiding the backflow of the medium interfering with the normal process. The function of adjusting the position of the discharge hole allows the discharge hole to be connected with each branch flow hole one by one. At the same time, by adjusting the position of the discharge hole, the medium can be transported to different branch pipes to facilitate the regulation of the medium transportation direction. The displacement of the arc top block to lift the baffle can also stretch the second return spring, so that when the arc top block is not in contact with the baffle, the baffle can be reset by the elasticity of the second return spring itself, thereby facilitating the blocking of the branch flow hole, facilitating the rapid switching of the medium transportation direction, and blocking the remaining branch flow holes, thereby improving the convenience of medium diversion and transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the technical solutions of the present disclosure, the following briefly introduces the drawings required for use in some embodiments. Obviously, the drawings described below are only drawings of some embodiments of the present disclosure, and those skilled in the art can also derive other drawings based on these drawings. Furthermore, the drawings described below are schematic diagrams and are not intended to limit the actual dimensions of the products, actual processes of the methods, actual timing of signals, and the like involved in the embodiments of the present disclosure.

[0020] Figure 1 It is the main view of the overall structure of the present invention.

[0021] Figure 2 It is a side view of the overall structure of the present invention.

[0022] Figure 3 It is a cross-sectional view of the overall structure of the present invention.

[0023] Figure 4 It is a three-dimensional diagram of the valve body, inner liner, diverter pipe, reinforced temporary arc chamber, return pipe and inlet pipe of the present invention.

[0024] Figure 5 It is a three-dimensional diagram of the handle, turntable, baffle, second return spring, first return spring, ball core and diverter plate of the present invention.

[0025] Figure 6 For the present invention Figure 4 Exploded diagram.

[0026] Figure 7 For the present invention Figure 5 Exploded diagram.

[0027] The accompanying drawings are marked as follows: 1. support seat; 2. inner lining cylinder; 3. valve body; 4. distribution flow hole; 5. diverter pipe; 6. ball core; 7. first return spring; 8. diverter plate; 9. reinforced temporary arc chamber; 10. return pipe; 11. input pipe; 12. reduction block; 13. push rod; 14. limiting ring; 15. frame mouth; 16. impact elimination chamber; 17. discharge hole; 18. guide chamber; 19. baffle; 20. pressure plate; 21. second return spring; 22. turntable; 23. arc top block; 24. arc slope; 25. handle. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0029] As attached Figure 1 - Figure 7 The illustrated embodiment shows a special ball valve for controlling the oil circuit of a hydraulic motor. The regulating assembly provided on the support seat 1 prevents abnormal pressure rise in the reinforced temporary arc chamber 9 from being transported to the return pipe 10 via the medium in the reinforced temporary arc chamber 9. This prevents obstruction and backflow of the medium when transported to the reinforced temporary arc chamber 9, and prevents backflow of the medium from interfering with the normal process. The position of the discharge hole 17 is adjusted so that the discharge hole 17 can be connected to each branch flow hole 4 one by one. At the same time, by adjusting the position of the discharge hole 17, the medium can be transported to different branch pipes 5 to facilitate control of the medium transport direction. The displacement of the arc top block 23 to lift the baffle 19 can also stretch the second return spring 21. When the arc top block 23 is no longer in contact with the baffle 19, the baffle 19 can be elastically reset by the second return spring 21, thereby facilitating the blocking of the branch flow hole 4. This facilitates rapid switching of the medium transport direction while blocking the remaining branch flow holes 4, thereby improving the convenience of medium diversion and transport. The specific structural arrangement of the assembly is as follows.

[0030] The regulating assembly includes an inner liner 2 on top of a support seat 1, a valve body 3 is sleeved on the outer side of the inner liner 2, a guide cavity 18 is formed on the valve body 3, and a plurality of branch flow holes 4 are distributed inside the guide cavity 18 and penetrate the valve body 3. The surfaces of the plurality of branch flow holes 4 are provided with a diversion pipe 5 for conveying the medium;

[0031] A ball core 6 is provided in the middle of the inner liner 2, a first return spring 7 is provided on the top of the ball core 6 and extends to the top of the inner cavity of the inner liner 2, and a diverter plate 8 is fixedly provided on the bottom of the ball core 6;

[0032] A reinforced temporary arc storage chamber 9 is fixedly provided at the bottom of the support seat 1, a return pipe 10 for diversion is fixedly provided at the bottom of the reinforced temporary arc storage chamber 9, an input pipe 11 for diversion is fixedly provided on one side of the reinforced temporary arc storage chamber 9, a reduction block 12 is slidably connected to the inside of the return pipe 10, a plurality of ejector rods 13 are fixedly provided at the top of the reduction block 12, and a limit ring 14 is fixedly provided at the top of each ejector rod 13, the limit ring 14 is located at the bottom of the diverter plate 8, and a plurality of frame openings 15 are opened through the limit ring 14, and an impact elimination chamber 16 is opened at the bottom of the reduction block 12, and the shape of the impact elimination chamber 16 is set to be conical;

[0033] The surface of the inner liner 2 is penetrated by a discharge hole 17. The bottom end of the valve body 3 extends to the support seat 1 and is connected to the support seat 1 through a flange. The inner liner 2 is rotatably connected to the support seat 1. A baffle 19 is provided on one side of the surface of the multiple branch flow holes 4, and each baffle 19 is located in the guide cavity 18 and is slidably connected to the guide cavity 18. A pressure plate 20 is fixed on the top of each of the multiple baffles 19, and a second return spring 21 is fixed at both ends of each pressure plate 20. Multiple second return springs 21 are fixed on the top of each of the multiple baffles 19. The bottom ends of the springs 21 extend to the top of the valve body 3 and are fixed on the valve body 3. A turntable 22 is provided on the top of the valve body 3. An arc top block 23 is fixedly provided on the outside of the turntable 22. An arc slope 24 is provided on the arc top block 23. A handle 25 is provided on the turntable 22. The handle 25 passes through the turntable 22 and the valve body 3 and extends to the top of the inner liner 2. The turntable 22 and the inner liner 2 are fixedly connected to the handle 25 by bolts. The turntable 22 is located at the top of the inner cavity of the valve body 3 and is rotatably connected to the valve body 3.

[0034] According to the above structure, when in use, the medium is transported to the reinforced temporary arc storage chamber 9 through the input pipe 11, the medium is temporarily stored in the reinforced temporary arc storage chamber 9 and diverted through the return pipe 10, and the medium in the return pipe 10 flows through the reduction block 12 and gathers between the reduction block 12 and the return pipe 10. As the medium in the impact reduction chamber 16 gathers more and more, the reduction block 12 drives the push rod 13 and the limit ring 14 to move upward, and then the diverter plate 8 pushes the ball core 6 to move upward. When the ball core 6 moves upward, the first return spring 7 is compressed, so that the medium can be transported to the inner liner 2;

[0035] Furthermore, by transporting the medium in the enhanced arc storage chamber 9 to the return pipe 10, an abnormal increase in the pressure in the enhanced arc storage chamber 9 is avoided, and backflow of the medium is prevented when being transported to the enhanced arc storage chamber 9, thereby preventing the backflow of the medium from interfering with the normal process.

[0036] After the medium is delivered to the inner liner 2, the handle 25 is rotated to drive the turntable 22 and the inner liner 2 to rotate, thereby adjusting the position of the discharge hole 17 so that the discharge hole 17 can be connected to each branch flow hole 4 one by one. At the same time, by adjusting the position of the discharge hole 17, the medium can be delivered to different branch pipes 5, so as to facilitate the regulation of the medium delivery direction.

[0037] When the rotary disk 22 rotates, the arc top block 23 is displaced, and the arc slope 24 contacts the baffle 19, which in turn enables the baffle 19 to be displaced in the guide cavity 18, so that the distribution flow hole 4 can be connected with the discharge hole 17, thereby ensuring the accuracy of the medium in the inner liner 2 being transported to the distribution pipe 5 through the distribution flow hole 4;

[0038] Moreover, when the arc top block 23 is displaced to lift the baffle 19, the second return spring 21 can be stretched, so that when the arc top block 23 is not in contact with the baffle 19, the baffle 19 can be reset by the elasticity of the second return spring 21 itself, which is convenient for blocking the branch delivery hole 4, making it easy to quickly switch the medium delivery direction while also blocking the remaining branch delivery holes 4, thereby improving the convenience of medium diversion and delivery.

[0039] Different from the prior art, the present application discloses a special ball valve for controlling the oil circuit of a hydraulic motor. By strengthening the temporary arc chamber 9 to transport the medium into the return pipe 10, the abnormal pressure increase in the temporary arc chamber 9 is avoided, the phenomenon of obstruction and backflow of the medium when transported into the strengthened temporary arc chamber 9 is avoided, and the backflow of the medium is avoided to interfere with the normal process. The function of adjusting the position of the discharge hole 17 allows the discharge hole 17 to be connected with each branch flow hole 4 one by one. At the same time, by adjusting the position of the discharge hole 17, the medium can be transported to different branch pipes 5 to facilitate the regulation of the medium transport direction. The displacement of the arc top block 23 to lift the baffle 19 can also stretch the second return spring 21, so that when the arc top block 23 is not in contact with the baffle 19, the baffle 19 can be reset by the elasticity of the second return spring 21 itself, so as to facilitate the blocking of the branch flow hole 4. It is easy to quickly switch the medium transport direction while blocking the remaining branch flow holes 4, thereby improving the convenience of medium diversion and transport.

[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A special ball valve for controlling the oil circuit of an oil servo motor, comprising a support seat (1), characterized in that: The support seat (1) is provided with a regulating component; The regulating assembly comprises an inner lining cylinder (2) on the top of the support seat (1), a valve body (3) is sleeved on the outer side of the inner lining cylinder (2), a guide cavity (18) is opened on the valve body (3), and a plurality of distribution flow holes (4) are distributed inside the guide cavity (18) and penetrate the valve body (3); A ball core (6) is provided in the middle of the inner liner (2), a first return spring (7) extending to the top of the inner cavity of the inner liner (2) is provided on the top of the ball core (6), and a diverter plate (8) is fixedly provided on the bottom of the ball core (6); A reinforced temporary arc chamber (9) is fixedly provided at the bottom of the support seat (1), a return pipe (10) for diverting flow is fixedly provided at the bottom of the reinforced temporary arc chamber (9), and an input pipe (11) for diverting flow is fixedly provided on one side of the reinforced temporary arc chamber (9); A baffle (19) is provided on one side of the surface of each of the plurality of distribution flow holes (4), and each of the baffles (19) is located in the guide cavity (18) and is slidably connected to the guide cavity (18); A pressure plate (20) is fixedly provided at the top of each of the plurality of baffles (19), and a second return spring (21) is fixedly provided at both ends of each of the pressure plates (20), and the bottom ends of each of the plurality of second return springs (21) extend to the top of the valve body (3) and are fixed on the valve body (3); A rotary disc (22) is provided on the top of the valve body (3), an arc top block (23) is fixedly provided on the outside of the rotary disc (22), and an arc slope (24) is provided on the arc top block (23).

2. The special ball valve for controlling the oil circuit of the hydraulic motor according to claim 1 is characterized by: The return pipe (10) is internally slidably connected to a reduction block (12), a plurality of push rods (13) are fixedly provided at the top end of the reduction block (12), and a limiting ring (14) is fixedly provided at the top end of each push rod (13).

3. The special ball valve for controlling the oil circuit of the hydraulic motor according to claim 2 is characterized by: The limiting ring (14) is located at the bottom of the diverter plate (8), and a plurality of frame openings (15) are provided through the limiting ring (14). The bottom of the reduction block (12) is provided with an impact elimination chamber (16), and the shape of the impact elimination chamber (16) is set to be conical.

4. The special ball valve for controlling the oil circuit of the hydraulic motor according to claim 1 is characterized by: A discharge hole (17) is provided through the surface of the inner lining cylinder (2), the bottom end of the valve body (3) extends to the support seat (1) and is connected to the support seat (1) via a flange, and the inner lining cylinder (2) is rotatably connected to the support seat (1).

5. The special ball valve for controlling the oil circuit of the hydraulic motor according to claim 1 is characterized by: The turntable (22) is provided with a handle (25), and the handle (25) passes through the turntable (22) and the valve body (3) and extends to the top end of the liner cylinder (2).

6. The special ball valve for controlling the oil circuit of the hydraulic motor according to claim 5 is characterized by: The turntable (22) and the inner lining cylinder (2) are both fixedly connected to the handle (25) via bolts. The turntable (22) is located at the top of the inner cavity of the valve body (3) and is rotatably connected to the valve body (3).

7. The special ball valve for controlling the oil circuit of the hydraulic motor according to claim 1 is characterized by: The surfaces of the plurality of diversion and delivery holes (4) are each provided with a diversion pipe (5) for delivering the medium.

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