Box body anti-rotation structure of large-torque shifting fork type actuator

Abstract

The utility model discloses a box body anti-rotation structure of a large-torque shifting fork type actuator, and particularly relates to the field of shifting fork type actuators, the box body anti-rotation structure comprises a shifting fork type actuator box body, one end of the bottom of the shifting fork type actuator box body is fixedly connected with two first stabilizing lug plates, the surfaces of the first stabilizing lug plates are provided with connecting holes, and the connecting holes are connected with the shifting fork type actuator box body. And a mounting top plate is arranged at the bottom of the shifting fork type actuator box body. Firstly, the clamp top plate and the clamp bottom plate are fixed to a valve body pipeline, a second stabilizing rod penetrates through a connecting hole, a second inserting hole and a first inserting hole, and therefore a connecting plate, a second stabilizing lug plate, a third stabilizing lug plate and a first stabilizing lug plate can be stably fixed all the time; the shifting fork type actuator box body can be prevented from slightly rotating due to looseness between the shifting fork type actuator box body and the mounting top plate and between the mounting bottom plate and the valve body, so that the transmission precision is influenced, and the anti-rotation effect of the shifting fork type actuator box body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of scotch fork actuators, and more specifically to a box body anti-rotation structure of a large torque scotch fork actuator. Background Art

[0002] The scotch yoke pneumatic actuator is a piston actuator, suitable for the switch, cutoff or metering control of valves with a 90° rotation angle (such as ball valves, butterfly valves, and plug valves). The working principle is that compressed air enters the cylinder to push the piston to move linearly. The piston uses the piston pin and the U-shaped groove design of the scotch yoke to convert the linear motion of the piston into the rotational motion of the scotch yoke. The rotation of the scotch yoke drives the output shaft to rotate, thereby realizing the control of the valve. The high-torque scotch yoke actuator is a high-power scotch yoke actuator.

[0003] When the existing scotch fork actuator is connected to the valve body, bolts are passed through the two ends of the connecting piece to fix the valve body and the scotch fork actuator respectively, so as to achieve the installation and fixation of the scotch fork actuator. When in use, it is easy to cause slight looseness between the scotch fork actuator box and the connecting piece, or between the connecting piece and the valve body, resulting in slight rotation of the scotch fork actuator box relative to the valve body during operation, affecting the transmission accuracy and causing errors. Therefore, a box anti-rotation structure for a large torque scotch fork actuator is proposed. Utility Model Content

[0004] In order to overcome the above defects of the prior art, the utility model provides a box anti-rotation structure of a large torque yoke actuator to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a box anti-rotation structure of a large torque slewing fork actuator, comprising a slewing fork actuator box, two first stabilizing ear plates are fixedly connected to one end of the bottom of the slewing fork actuator box, a connection hole is opened on the surface of the first stabilizing ear plate, a mounting top plate is arranged at the bottom of the slewing fork actuator box, and four first stabilizing rods are fixedly connected to the bottom of the mounting top plate;

[0006] The bottom end of the first stabilizing rod is fixedly connected to a mounting base plate, and the third stabilizing ear plate and the second stabilizing ear plate are respectively fixedly connected to one side of the mounting top plate and the mounting base plate, and the surfaces of the third stabilizing ear plate and the second stabilizing ear plate are both provided with a second plug hole, the surface of the mounting top plate is provided with a first mounting hole, and the surface of the mounting base plate is provided with a second mounting hole;

[0007] A second stabilizing rod is inserted in the middle of the second insertion hole, a nut is fixedly connected to the bottom end of the second stabilizing rod, a clamp top plate and a clamp bottom plate are provided at the bottom of the second stabilizing rod, and connecting plates are symmetrically fixedly connected to both sides of the top of the clamp top plate.

[0008] Preferably, the mounting top plate is fixed to the bottom of the fork actuator housing by rivets penetrating the first mounting hole, and the third stabilizing ear plate corresponds to the first stabilizing ear plate.

[0009] Preferably, the second insertion hole is matched with the connecting hole, the second insertion hole is matched with the diameter of the second stabilizing rod, and the cross-sectional shape of the second stabilizing rod is set to be "U"-shaped.

[0010] Preferably, the first stabilizing rod and the first mounting hole and the second mounting hole are offset from each other, the connecting plate corresponds to the second stabilizing ear plate, a first plug hole is provided at one end of the connecting plate, and the second stabilizing rod passes through the connecting hole and the middle of the second plug hole and the first plug hole.

[0011] Preferably, mounting plates are symmetrically fixedly connected to both ends of the clamp top plate and the clamp bottom plate, a threaded connection hole is opened in the middle of the mounting plate, and a fastening bolt is inserted in the middle of the threaded connection hole.

[0012] Technical effects and advantages of the utility model:

[0013] 1. The utility model firstly fixes the mounting top plate with the slewing fork actuator housing by bolts, fixes the mounting bottom plate with the valve body by bolts, and fixes the mounting top plate and the mounting bottom plate to the valve body pipeline by the clamp top plate and the clamp bottom plate. The second stabilizing rod penetrates the connecting hole, the second plug hole and the first plug hole, so that the connecting plate, the second stabilizing ear plate, the third stabilizing ear plate and the first stabilizing ear plate can be always stably fixed, so that the slewing fork actuator housing and the mounting top plate, the mounting bottom plate and the valve body can be prevented from causing slight rotation of the slewing fork actuator housing due to looseness, thereby affecting the transmission accuracy, and improving the anti-rotation effect of the slewing fork actuator housing;

[0014] 2. The utility model can also improve the stability of the connection between the first mounting hole and the mounting base plate by setting the first stabilizing rod, and facilitate the installation of the second stabilizing rod by aligning the first stabilizing ear plate with the third stabilizing ear plate and the second stabilizing ear plate. By using the connecting plate and the first plug hole, it is convenient to align the third stabilizing ear plate and the second stabilizing ear plate with the connecting plate through the second stabilizing rod, thereby improving the anti-rotation effect of the slewing fork actuator box, and fixing the slewing fork actuator box to the valve body pipeline by the clamp top plate and the clamp bottom plate, so that the slewing fork actuator box can be directly limited relative to the valve body pipeline, thereby preventing the slewing fork actuator box from rotating, and further improving the anti-rotation effect;

[0015] In summary, through the mutual influence of the above-mentioned multiple effects, the fork actuator housing and the valve body can be conveniently installed and fixed, and the fork actuator housing can be directly limited relative to the valve body pipeline through the second stabilizer bar to prevent the fork actuator housing from rotating, thereby improving the anti-rotation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 The utility model is a schematic diagram of the split structure of the scotch fork actuator box and the mounting top plate.

[0018] Figure 3 It is a schematic diagram of the connection structure of the installation top plate and the clamp top plate of the utility model.

[0019] Figure 4 It is a schematic diagram of the split structure of the installation top plate, the clamp top plate and the second stabilizing bar of the utility model.

[0020] Figure 5 It is a structural schematic diagram of the clamp top plate and the clamp bottom plate of the utility model.

[0021] The accompanying drawings are marked as follows: 1. fork actuator housing; 2. first stabilizing ear plate; 3. connecting hole; 4. mounting top plate; 5. first stabilizing rod; 6. mounting bottom plate; 7. first mounting hole; 8. second mounting hole; 9. second stabilizing ear plate; 10. third stabilizing ear plate; 11. second stabilizing rod; 12. nut; 13. clamp top plate; 14. clamp bottom plate; 15. mounting plate; 16. connecting plate; 17. first socket; 18. second socket. DETAILED DESCRIPTION

[0022] 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.

[0023] As attached Figure 1-5 The case anti-rotation structure of a large torque scotch fork actuator shown in the figure comprises a scotch fork actuator case 1, and two first stabilizing ear plates 2 are fixedly connected to one end of the bottom of the scotch fork actuator case 1. When the scotch fork actuator case 1 is installed, the installation position of the scotch fork actuator case 1 can be limited to prevent the scotch fork actuator case 1 from rotating, thereby improving the installation stability of the scotch fork actuator case 1. A connecting hole 3 is provided on the surface of the first stabilizing ear plate 2 for convenient connection and use. A mounting top plate 4 is provided at the bottom of the scotch fork actuator case 1 for convenient installation. Four first stabilizing rods 5 are fixedly connected to the bottom of the mounting top plate 4 to support the mounting top plate 4.

[0024] The bottom end of the first stabilizing rod 5 is fixedly connected with a mounting base plate 6, and one side of the mounting top plate 4 and the mounting base plate 6 is respectively fixedly connected with a third stabilizing ear plate 10 and a second stabilizing ear plate 9, and the surfaces of the third stabilizing ear plate 10 and the second stabilizing ear plate 9 are both provided with a second plug hole 18, the surface of the mounting top plate 4 is provided with a first mounting hole 7, and the surface of the mounting base plate 6 is provided with a second mounting hole 8. The mounting base plate 6 is installed on the valve body, so that the output end of the slewing fork actuator housing 1 is conveniently aligned with the driving end of the valve body, and the installation positions of the first mounting hole 7 and the mounting base plate 6 can be limited by the third stabilizing ear plate 10 and the second stabilizing ear plate 9, so that the slewing fork actuator housing 1 and the mounting top plate 4 and the mounting base plate 6 are limitedly connected through the second stabilizing rod 11;

[0025] A second stabilizing rod 11 is inserted in the middle of the second insertion hole 18, and a nut 12 is fixedly connected to the bottom end of the second stabilizing rod 11. A clamp top plate 13 and a clamp bottom plate 14 are provided at the bottom of the second stabilizing rod 11. Connecting plates 16 are symmetrically fixedly connected to the top two sides of the clamp top plate 13. The second stabilizing rod 11 can be used to stably connect the sled actuator housing 1 and the mounting top plate 4 and the mounting bottom plate 6. The mounting bottom plate 6 is mounted on the valve body through the second mounting hole 8, and the mounting top plate 4 is fixedly mounted on the bottom of the sled actuator housing 1 through the first mounting hole 7, so that the sled actuator housing 1 is fixedly connected to the valve body, which can improve the stability of the installation of the sled actuator housing 1, prevent the sled actuator housing 1 from rotating, and play an anti-rotation role.

[0026] As attached Figure 1 , 2 As shown, the mounting top plate 4 is fixed to the bottom of the fork actuator housing 1 by rivets passing through the first mounting holes 7, and the third stabilizing ear plate 10 corresponds to the first stabilizing ear plate 2, so that the mounting top plate 4 is conveniently fixed to the bottom of the fork actuator housing 1, and the mounting top plate 4 can be fixedly connected to the fork actuator housing 1 by the third stabilizing ear plate 10 corresponding to the first stabilizing ear plate 2.

[0027] As attached Figure 1-4 As shown, the second socket 18 is matched with the connecting hole 3, the second socket 18 is matched with the diameter of the second stabilizing rod 11, the cross-sectional shape of the second stabilizing rod 11 is set to be "U"-shaped, and the second stabilizing rod 11 passes through the third stabilizing ear plate 10 and the second stabilizing ear plate 9, so as to ensure the stability of the third stabilizing ear plate 10, the second stabilizing ear plate 9 and the first stabilizing ear plate 2, thereby preventing the fork actuator housing 1 from rotating.

[0028] As attached Figure 1-4As shown, the first stabilizing rod 5 and the first mounting hole 7 and the second mounting hole 8 are offset from each other, the connecting plate 16 corresponds to the second stabilizing ear plate 9, and a first plug hole 17 is provided at one end of the connecting plate 16. The second stabilizing rod 11 passes through the connecting hole 3 and the middle of the second plug hole 18 and the first plug hole 17. The mounting bottom plate 6 can be conveniently mounted on the valve body through the second mounting hole 8, which is convenient for installation and use. The second stabilizing rod 11 can stably connect the fork actuator housing 1 with the mounting top plate 4 and the first stabilizing rod 5 to prevent the fork actuator housing 1 from rotating, thereby improving the use effect.

[0029] As attached Figure 5 As shown, the two ends of the clamp top plate 13 and the clamp bottom plate 14 are symmetrically fixedly connected with the mounting plate 15, the middle of the mounting plate 15 is provided with a threaded connection hole, and the middle of the threaded connection hole is inserted with a fastening bolt. The clamp bottom plate 14 and the clamp top plate 13 are clamped in the connecting pipe of the valve body, so that the position of the connecting plate 16 can be limited, so that the second stabilizing rod 11 passes through the first plug hole 17, and the fork actuator housing 1 can be further fixed to prevent the fork actuator housing 1 from rotating, thereby improving the anti-rotation fixing effect.

[0030] Working principle of the utility model: when in use, it is only necessary to clamp the clamp top plate 13 and the clamp bottom plate 14 on the valve body pipeline through the mounting plate 15, and the mounting top plate 4 is fixedly connected to the fork actuator housing 1 through the bolts penetrating the first mounting hole 7, and the third stable ear plate 10 is made to correspond to the first stable ear plate 2, and then the mounting bottom plate 6 is fixedly connected to the valve body through the bolts penetrating the second mounting hole 8, and the second stable ear plate 9 is made to correspond to the connecting plate 16, and the output end of the fork actuator housing 1 is connected to the driving end of the valve body;

[0031] Then the second stabilizing rod 11 is passed through the connecting hole 3 and the middle of the second plug hole 18 and the first plug hole 17 and the nut 12 is rotated to fix it, which can facilitate the installation and fixation of the fork actuator housing 1 and improve the anti-rotation strength of the fork actuator housing 1.

[0032] 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 protection scope of the present invention.

Claims

1. A case anti-rotation structure for a large torque scotch fork actuator, comprising a scotch fork actuator case (1), characterized in that: Two first stabilizing ear plates (2) are fixedly connected to one end of the bottom of the scotch fork actuator housing (1), and a connection hole (3) is provided on the surface of the first stabilizing ear plate (2). A mounting top plate (4) is provided at the bottom of the scotch fork actuator housing (1), and four first stabilizing rods (5) are fixedly connected to the bottom of the mounting top plate (4); The bottom end of the first stabilizing rod (5) is fixedly connected to a mounting base plate (6), and one side of the mounting top plate (4) and the mounting base plate (6) is respectively fixedly connected to a third stabilizing ear plate (10) and a second stabilizing ear plate (9), and the surfaces of the third stabilizing ear plate (10) and the second stabilizing ear plate (9) are both provided with a second plug hole (18), the surface of the mounting top plate (4) is provided with a first mounting hole (7), and the surface of the mounting base plate (6) is provided with a second mounting hole (8); A second stabilizing rod (11) is inserted into the middle of the second insertion hole (18), a nut (12) is fixedly connected to the bottom end of the second stabilizing rod (11), a clamp top plate (13) and a clamp bottom plate (14) are provided at the bottom of the second stabilizing rod (11), and connecting plates (16) are symmetrically fixedly connected to the top two sides of the clamp top plate (13).

2. The box anti-rotation structure of a large torque scotch fork actuator according to claim 1, characterized in that: The mounting top plate (4) is fixed to the bottom of the fork actuator housing (1) by means of rivets penetrating the first mounting holes (7), and the third stabilizing ear plate (10) corresponds to the first stabilizing ear plate (2).

3. The box anti-rotation structure of a large torque scotch fork actuator according to claim 1, characterized in that: The second insertion hole (18) is matched with the connection hole (3), the second insertion hole (18) is matched with the diameter of the second stabilizing rod (11), and the cross-sectional shape of the second stabilizing rod (11) is set to be "U"-shaped.

4. The box anti-rotation structure of a large torque scotch fork actuator according to claim 1, characterized in that: The first stabilizing rod (5) and the first mounting hole (7) and the second mounting hole (8) are mutually offset, the connecting plate (16) corresponds to the second stabilizing ear plate (9), one end of the connecting plate (16) is provided with a first plug hole (17), and the second stabilizing rod (11) passes through the middle of the connecting hole (3) and the second plug hole (18) and the first plug hole (17).

5. The box anti-rotation structure of a large torque scotch fork actuator according to claim 1, characterized in that: The two ends of the clamp top plate (13) and the clamp bottom plate (14) are symmetrically fixedly connected with a mounting plate (15), a threaded connection hole is opened in the middle of the mounting plate (15), and a fastening bolt is inserted in the middle of the threaded connection hole.

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