Special ball valve for controlling oil path of hydraulic servo-motor

Abstract

The invention discloses a special ball valve for controlling an oil path of a hydraulic servo-motor, and particularly relates to the technical field of ball valves, the special ball valve comprises a supporting seat, a regulation and control assembly is arranged on the supporting seat, the regulation and control assembly comprises a lining cylinder arranged at the top of the supporting seat, the outer side of the lining cylinder is sleeved with a valve body, and a guide cavity is formed in the valve body. By means of the mode that a medium in the reinforced temporary storage arc cavity is conveyed into the backflow pipe, abnormal rising of the pressure in the reinforced temporary storage arc cavity is avoided, the phenomenon of backflow caused by blocking when the medium is conveyed into the reinforced temporary storage arc cavity is avoided, the function of adjusting the positions of the discharging holes is achieved, the discharging holes can communicate with the branch conveying flow holes one by one, and the discharging efficiency is improved. And meanwhile, by adjusting the positions of the discharging holes, the media can be conveyed into different flow dividing pipes, so that the conveying direction of the media can be conveniently adjusted and controlled, the other flow dividing and conveying holes can be blocked while the conveying direction of the media is easily and rapidly switched, and the convenience of turning and conveying of the media is improved.

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] The hydraulic motor is a hydraulic actuator commonly found in steam turbines, gas turbines and other equipment. It drives valves or regulating mechanisms through the pressure of hydraulic oil to control the operating status of the equipment (such as the opening of the turbine intake valve). Oil circuit ball valve: A ball valve installed in the hydraulic circuit of the hydraulic motor is used to open and close, adjust or switch the oil circuit to ensure that the system safely and accurately controls the flow direction and pressure of the oil.

[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 is movably connected in the middle position of the valve body, a first ball valve steel ball is arranged above the link pin shaft, 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, 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, and the upper part of the inner cavity of the valve body is divided into an A oil circuit and a B oil circuit through the first ball valve steel ball; When this structure is in use, the lower part of the inner cavity of the valve body is divided into C oil circuit and D oil circuit by the second ball valve steel ball, and plugs are provided on both B oil circuit and D oil circuit. F oil port and G oil port are opened on the other side of the valve body, and the two ball valves connected in series are used to realize the two-position six-way switching requirement. Eight switching 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, and it is not easy to switch a single medium transportation direction. In addition, it is not easy to reduce the impact force of the medium when the medium is directly transported, and backflow is prone to occur, affecting the medium transportation efficiency. Summary of the invention

[0004] 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 an oil motor, aiming to solve the problems raised in the above-mentioned background technology.

[0005] 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 component is arranged; The regulating assembly includes an inner liner on the top of the support seat, a valve body is sleeved on the outer side of the inner liner, a guide cavity is opened on the valve body, a plurality of branch flow holes penetrating the valve body are distributed inside the guide cavity, and a plurality of branch flow holes are provided on the surface of each of the branch flow holes for conveying the medium; A ball core is arranged in the middle of the inner liner, a first return spring extending to the top of the inner cavity of the inner liner is arranged on the top of the ball core, and a diverter plate is fixedly arranged on the bottom of the ball core; A reinforced temporary arc storage chamber is fixedly provided at the bottom of the support seat, a return pipe for diversion is fixedly provided at the bottom of the reinforced temporary arc storage chamber, an input pipe for diversion is fixedly provided on one side of the reinforced temporary arc storage chamber, a reduction block is slidably connected inside 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, a plurality of frame openings are penetrated through the limiting ring, an impact elimination chamber is provided at the bottom of the reduction block, and the shape of the impact elimination chamber is set to be conical; It can be seen that in the above technical solution, the medium in the return pipe will flow through the reduction block and gather between the reduction block and the return pipe. As the medium in the impact 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 to the inner liner tube, and the medium in the enhanced temporary arc chamber is transported to the return pipe, so as to avoid abnormal pressure increase in the enhanced temporary arc chamber, avoid the phenomenon of backflow when the medium is transported to the enhanced temporary arc chamber, and avoid the backflow of the medium interfering with the normal process; Optionally, in a possible embodiment, a discharge hole is provided through the surface of the inner liner, the bottom end of the valve body extends to the support seat and is connected to the support seat by a flange, the inner liner is rotatably connected to the support seat, a baffle is provided on one side of the surface of the plurality of branch flow holes, and each of the baffles is located in the guide cavity and is slidably connected to the guide cavity, a pressure plate is fixedly provided on the top of the plurality of baffles, and a second return spring is fixedly provided at both ends of each of the pressure plates, the bottom ends of the plurality of second return springs extend to the top of the valve body and are fixed on the valve body, a turntable is provided on the top of the valve body, an arc top block is fixedly provided on the outer side of the turntable, an arc top block is provided with an arc slope, a handle is provided on the turntable, the handle passes through the turntable and the valve body and extends to the top of the inner liner, the turntable and the inner liner are fixedly connected to the handle by bolts, the turntable is located at the top of the inner cavity of the valve body and is rotatably connected to the valve body; It can be seen that in the above technical scheme, after the medium is transported into the inner liner, the handle is rotated to drive the turntable and the inner liner to rotate, so as to realize the function of adjusting the position of the discharge hole, so that the discharge hole can be connected with each branch delivery 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 control the medium transportation 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 move in the guide cavity, so that the branch delivery 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 delivery 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 blocking of the branch delivery hole, and it is easy to quickly switch the medium transportation direction while blocking the remaining branch delivery holes, thereby improving the convenience of medium steering and transportation.

[0006] Technical effects and advantages of the present invention: 1. The present invention gathers more and more media in the impact-absorbing chamber, 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 to the inner liner; 2. The present invention strengthens the way of conveying the medium in the temporary arc chamber to the return pipe, thereby avoiding abnormal pressure increase in the temporary arc chamber, avoiding the phenomenon of backflow when the medium is blocked when conveyed to the temporary arc chamber, and avoiding the medium backflow interfering with the normal process. The function of adjusting the position of the discharge hole is realized by rotating the handle to drive the turntable and the inner liner to rotate, so that the discharge hole can 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 conveyed to different branch pipes, so as to facilitate the regulation of the medium conveying direction; 3. When the rotating disk rotates, the arc top block is displaced, and the arc slope contacts the baffle, which enables the baffle to displace in the guide cavity, so that the distribution flow hole can be connected with the discharge hole, so as to ensure the accuracy of the medium in the inner liner tube being transported to the distribution pipe through the distribution flow hole; 4. In the present invention, 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, which is convenient for blocking the branch delivery holes, and it is easy to quickly switch the medium delivery direction while blocking the remaining branch delivery holes, thereby improving the convenience of medium steering delivery; To sum up, through the corresponding coordinated use of various structures, the medium in the enhanced temporary arc chamber is transported to the reflux pipe, so as to avoid abnormal pressure increase in the enhanced temporary arc chamber, avoid the phenomenon of backflow caused by obstruction when the medium is transported to the enhanced temporary arc chamber, and avoid the medium backflow 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, which is convenient for blocking the branch flow hole, and it is easy to quickly switch the medium transportation direction while blocking the remaining branch flow holes, thereby improving the convenience of medium steering transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in 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. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams, and are not intended to limit the actual size of the product involved in the embodiments of the present disclosure, the actual process of the method, the actual timing of the signal, etc.

[0008] Figure 1 It is the front view of the overall structure of the present invention.

[0009] Figure 2 It is a side view of the overall structure of the present invention.

[0010] Figure 3 It is a cross-sectional view of the overall structure of the present invention.

[0011] Figure 4 It is a stereoscopic diagram of the valve body, inner liner, shunt pipe, enhanced temporary arc storage chamber, return pipe and input pipe of the present invention.

[0012] Figure 5 It is a stereoscopic diagram of the handle, the turntable, the baffle, the second return spring, the first return spring, the ball core and the diverter plate of the present invention.

[0013] Figure 6 For the present invention Figure 4 Exploded diagram.

[0014] Figure 7 For the present invention Figure 5 Exploded diagram.

[0015] 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 storage 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

[0016] 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 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 creative work are within the scope of protection of the present invention.

[0017] As attached Figure 1 - Figure 7 The special ball valve for controlling the oil circuit of the oil motor shown in the figure, through the regulating component arranged on the support seat 1, the medium in the reinforced temporary arc chamber 9 is transported to the return pipe 10, so as to avoid abnormal pressure increase in the reinforced temporary arc chamber 9, avoid the phenomenon of backflow when the medium is transported to the reinforced temporary arc chamber 9, and avoid the medium backflow interfering with the normal process, and the function of adjusting the position of the discharge hole 17, so that the discharge hole 17 can be connected with each branch flow hole 4 one by one, and at the same time, by adjusting the position of the discharge hole 17, the medium can be transported to different branch pipes 5, so as to facilitate the regulation of the medium transportation direction, and the arc top block 23 is displaced to lift the baffle 19, so that 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, so as to facilitate the blocking of the branch flow hole 4, and it is easy to quickly switch the medium transportation direction while blocking the remaining branch flow holes 4, so as to improve the convenience of medium steering transportation, and the specific structure of the component is arranged as follows; The regulating assembly includes an inner liner 2 on the top of the support seat 1, a valve body 3 is sleeved on the outer side of the inner liner 2, a guide cavity 18 is opened on the valve body 3, a plurality of branch flow holes 4 penetrating the valve body 3 are distributed inside the guide cavity 18, and a plurality of branch flow holes 4 are disposed on the surface of each of the plurality of branch flow holes 4 for conveying the medium; A ball core 6 is arranged 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 arranged on the top of the ball core 6, and a diverter plate 8 is fixedly arranged on the bottom of the ball core 6; 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 inside the return pipe 10, a plurality of top 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 top 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; A discharge hole 17 is formed on the surface of the inner liner 2, 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 plurality of branch delivery 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 fixedly provided on the top of the plurality of baffles 19, and a second return spring 21 is fixedly provided at both ends of each pressure plate 20, and a plurality of second return springs 21 are fixedly provided on the top of the plurality of 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 outer side 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.

[0018] According to the above structure, when in use, the medium is transported to the enhanced temporary arc storage chamber 9 through the input pipe 11, the medium is temporarily stored in the enhanced temporary arc storage chamber 9 and diverted through the return pipe 10, 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, and the reduction block 12 drives the push rod 13 and the limit ring 14 to move upward through the medium in the impact elimination chamber 16. Then the diverter plate 8 pushes the ball core 6 to move upward, and when the ball core 6 moves upward, the first return spring 7 is compressed, and then the medium can be transported to the inner liner 2; Furthermore, by transporting the medium in the enhanced arc storage chamber 9 to the return pipe 10, the pressure in the enhanced arc storage chamber 9 is prevented from abnormally increasing, and the medium is prevented from being blocked and flowing back when being transported to the enhanced arc storage chamber 9, so that the medium backflow interferes with the normal process; After the medium is transported into the inner liner 2, the handle 25 is rotated to drive the turntable 22 and the inner liner 2 to rotate, so as to adjust the position of the discharge hole 17, so that the discharge hole 17 can 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, so as to adjust the medium transport direction. When the rotating disk 22 rotates, the arc top block 23 is driven to move, and the arc slope 24 contacts the baffle 19, so that the baffle 19 can move in the guide cavity 18, so that the distribution flow hole 4 can be connected with the discharge hole 17, so as to ensure the accuracy of the medium in the inner liner 2 being transported to the distribution pipe 5 through the distribution flow hole 4; In addition, 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 flow hole 4, and it is easy to quickly switch the medium conveying direction while blocking the remaining branch flow holes 4, thereby improving the convenience of medium steering and conveying.

[0019] Different from the prior art, the present application discloses a special ball valve for controlling the oil circuit of an oil motor. By strengthening the way that the medium in the temporary arc chamber 9 is transported to the return pipe 10, the abnormal increase of the pressure in the temporary arc chamber 9 is avoided, the phenomenon of backflow caused by the obstruction when the medium is transported to the strengthened temporary arc chamber 9 is avoided, and the medium backflow interferes with the normal process. The function of adjusting the position of the discharge hole 17 enables 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 transportation direction. The arc top block 23 is displaced to lift the baffle 19, and 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, so as to facilitate the blocking of the branch flow hole 4, and it is easy to quickly switch the medium transportation direction while blocking the remaining branch flow holes 4, thereby improving the convenience of medium steering transportation.

[0020] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A special ball valve for controlling the oil circuit of an oil 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 tube (2) on the top of the support seat (1), a valve body (3) is sleeved on the outer side of the inner lining tube (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 arranged 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 arranged at the top of the ball core (6), and a diverter plate (8) is fixedly arranged at 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).

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 slidably connected to a reduction block (12) inside, a plurality of push rods (13) are fixedly provided on the top of the reduction block (12), and a limiting ring (14) is fixedly provided on the top 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 formed 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 formed through the surface of the inner liner (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 liner (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: A baffle (19) is provided on one side of the surface 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).

6. The special ball valve for controlling the oil circuit of the hydraulic motor according to claim 5, characterized in that: A pressure plate (20) is fixedly disposed on the top of each of the plurality of baffles (19), and a second return spring (21) is fixedly disposed on 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).

7. The special ball valve for controlling the oil circuit of the hydraulic motor according to claim 1, characterized in that: A rotating disk (22) is arranged on the top of the valve body (3), an arc top block (23) is fixedly arranged on the outside of the rotating disk (22), and an arc slope (24) is provided on the arc top block (23).

8. The special ball valve for controlling the oil circuit of the hydraulic motor according to claim 7 is characterized by: The rotating disk (22) is provided with a handle (25), and the handle (25) passes through the rotating disk (22) and the valve body (3) and extends to the top end of the liner cylinder (2).

9. The special ball valve for controlling the oil circuit of the hydraulic motor according to claim 8 is characterized by: The rotating disk (22) and the inner liner (2) are both fixedly connected to the handle (25) by means of bolts; the rotating disk (22) is located at the top of the inner cavity of the valve body (3) and is rotatably connected to the valve body (3).

10. The special ball valve for controlling the oil circuit of the hydraulic motor according to claim 1, characterized in that: The surfaces of the plurality of flow distribution holes (4) are each provided with a flow distribution pipe (5) for conveying a medium.

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