Small-torque inner pull rod type shifting fork executing mechanism

Abstract

The utility model relates to the technical field of shifting fork actuating mechanisms, in particular to a small-torque inner pull rod type shifting fork actuating mechanism which comprises a small-torque shifting fork actuator and a mounting mechanism used for assembling the small-torque shifting fork actuator, and a gear shaft is arranged in the middle of the top end of the small-torque shifting fork actuator. A horizontally-arranged top plate is arranged above the gear shaft, a net plate is fixedly embedded in the middle of the upper end face of the top plate, and the mounting mechanism comprises a bottom plate, a mounting frame, a mounting lug, a first limiting piece, a first bolt, a second limiting piece, a supporting frame and a second bolt. The bottom plate is of a horizontally-arranged rectangular plate-shaped structure, and a mounting frame is fixedly connected to the lower end face of the bottom plate. Through the design of the bottom plate, the mounting frame and the mounting lugs, the small-torque shifting fork actuator can be conveniently mounted, the supporting frame and the top plate jointly define the protection cavity on the upper end face of the bottom plate, the small-torque shifting fork actuator is located in the protection cavity, and the whole small-torque shifting fork actuator can be protected.

Description

Technical Field

[0001] The utility model relates to the technical field of shift fork actuators, in particular to a small torque inner pull rod type shift fork actuator. Background Art

[0002] Scotch yoke pneumatic actuator is a piston actuator. Scotch yoke pneumatic actuator usually refers to the pneumatic actuator with the structure of "single cylinder double piston-variable torque scotch yoke". The working principle of the scotch yoke actuator is: compressed air enters the cylinder, pushing the scotch yoke to move, the scotch yoke converts the linear motion of the piston into rotational motion, and outputs torque through the output shaft, thereby realizing the control of the opening and closing angle of the valve.

[0003] The output torque of the scotch fork actuator changes with the angle, reaching a maximum value at the opening and closing points, which is consistent with the characteristics of the butterfly valve and ball valve requiring a large torque for opening and closing, and can truly play the role of the actuator, ensure the performance of the valve and extend the service life of the valve. However, the existing small torque scotch fork actuator is not easy to install when in use, and the top of the existing small torque scotch fork actuator lacks a protective component, and the top of the small torque scotch fork actuator is easily hit by mistake.

[0004] Therefore, we propose a small torque inner pull rod type scotch fork actuator. Utility Model Content

[0005] The main purpose of the utility model is to provide a small torque inner pull rod type fork actuator, which is convenient for installing the small torque fork actuator through the design of the base plate, the mounting frame and the mounting ears. The support frame and the top plate jointly enclose a protective cavity on the upper end surface of the base plate. The small torque fork actuator is located in the protective cavity, which can protect the small torque fork actuator as a whole, and can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A small torque inner pull rod type fork actuator, the utility model described in the small torque inner pull rod type fork actuator comprises a small torque fork actuator and a mounting mechanism for assembling the small torque fork actuator, the small torque fork actuator is provided with a gear shaft at the center of the top end, a horizontally arranged top plate is provided above the gear shaft, a mesh plate is fixedly inlaid at the center of the upper end surface of the top plate, and the mounting mechanism comprises a bottom plate, a mounting frame, a mounting ear, a first limiter, a first bolt, a second limiter, a support frame and a second bolt;

[0008] The base plate is a horizontally arranged rectangular plate-shaped structure, and a mounting frame is fixedly connected to the lower end surface of the base plate. First limit members for limiting the position of a small torque fork actuator are fixedly inlaid on both sides of the upper end surface of the base plate, and second limit members for installing a slide groove are provided at both ends of the upper end surface of the base plate. Support frames for supporting the top plate are fixedly inserted at both ends of the upper end surface of the base plate, and two groups of support frames are relatively parallel, and both ends of the lower end surface of the top plate are fixedly connected to the top of the support frames.

[0009] By adopting the above technical scheme, support frames for supporting the top plate are fixedly inserted at both ends of the upper end surface of the bottom plate on both sides, and two groups of support frames are relatively parallel. Both ends of the lower end surface of the top plate are fixedly connected to the top of the support frames, which can protect the top of the small torque fork actuator to avoid accidental contact. The support frame and the top plate jointly enclose a protective cavity on the upper end surface of the bottom plate. The small torque fork actuator is located in the protective cavity, which can protect the small torque fork actuator as a whole.

[0010] Specifically, the support frame and the top plate together enclose a protection cavity on the upper end surface of the bottom plate, and the upper parts of both sides of the support frame are fixedly connected to side plates, and an opening is provided in the center of one side of the side plate.

[0011] Specifically, mounting ears are fixedly connected to the lower parts of both sides of the mounting frame, a second mounting hole is provided in the center of the bottom end of the mounting frame, and a first mounting hole that is compatible with the bottom end of the small torque fork actuator is provided in the center of the upper end surface of the base plate, and the first mounting hole is located directly above the second mounting hole.

[0012] Specifically, the first limit members are provided in multiple groups in parallel, the second limit members are provided in two groups, the small torque fork actuator is located between the two groups of the first limit members, and the small torque fork actuator is also located between the two groups of the second limit members.

[0013] Specifically, the first limit member is fixedly connected to the lower parts of both sides of the small torque fork actuator through first bolts.

[0014] Specifically, the second limit member is slidably connected to the slide groove, and the second limit member is fixedly connected to the lower parts of both ends of the small torque fork actuator through second bolts.

[0015] Beneficial effects of the utility model:

[0016] (1) The small torque inner pull rod type fork actuator described in the utility model is convenient for mounting the small torque fork actuator on the base plate through the design of the first limit member, the second limit member, the first bolt and the second bolt. The small torque fork actuator is convenient for mounting through the design of the base plate, the mounting frame and the mounting ears, so that the small torque fork actuator can be used flexibly, thereby improving the practicality of the small torque fork actuator.

[0017] (2) The utility model describes a small torque inner pull rod type fork actuator, in which both ends of the upper end surface of the bottom plate are fixedly plugged with support frames for supporting the top plate, and two groups of support frames are relatively parallel. Both ends of the lower end surface of the top plate are fixedly connected to the top of the support frames, which can protect the top of the small torque fork actuator to avoid accidental contact. The support frame and the top plate jointly enclose a protection cavity on the upper end surface of the bottom plate, and the small torque fork actuator is located in the protection cavity, which can protect the small torque fork actuator as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a three-dimensional diagram of a small torque fork actuator of the utility model;

[0021] Figure 3 It is a three-dimensional diagram of the installation mechanism of the utility model;

[0022] In the figure: 1. small torque fork actuator; 2. mounting mechanism; 3. bottom plate; 4. mounting frame; 5. mounting ear; 6. first limit piece; 7. first bolt; 8. slide groove; 9. second limit piece; 10. support frame; 11. top plate; 12. side plate; 13. protective cavity; 14. mesh plate; 15. opening; 16. gear shaft; 17. first mounting hole; 18. second mounting hole. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] As an embodiment of the present utility model, Figure 1-Figure 3 As shown, a small torque inner pull rod type fork actuator described in the utility model comprises a small torque fork actuator 1 and a mounting mechanism 2 for assembling the small torque fork actuator 1, a gear shaft 16 is provided at the center of the top of the small torque fork actuator 1, a horizontally arranged top plate 11 is provided above the gear shaft 16, a mesh plate 14 is fixedly inlaid at the center of the upper end surface of the top plate 11, and the mounting mechanism 2 comprises a bottom plate 3, a mounting frame 4, a mounting ear 5, a first stopper 6, a first bolt 7, a second stopper 9, a support frame 10 and a second bolt;

[0025] The base plate 3 is a horizontally arranged rectangular plate-like structure, and a mounting frame 4 is fixedly connected to the lower end surface of the base plate 3. First limit members 6 for limiting the position of the small torque fork actuator 1 are fixedly inlaid on both sides of the upper end surface of the base plate 3, and second limit members 9 for installing the slide groove 8 are provided at both ends of the upper end surface of the base plate 3. Support frames 10 for supporting the top plate 11 are fixedly inserted at both ends of the upper end surface of the base plate 3. Two groups of support frames 10 are relatively parallel, and both ends of the lower end surface of the top plate 11 are fixedly connected to the top of the support frame 10.

[0026] When in use, push the bottom end of the second limit member 9 in the slide groove 8 toward the direction of the small torque fork actuator 1 until the second limit member 9 is in close contact with both ends of the small torque fork actuator 1, and then pass one end of the second bolt through the second limit member 9 and fix it to the lower part of the two ends of the small torque fork actuator 1.

[0027] The utility model also includes that the support frame 10 and the top plate 11 jointly enclose a protection cavity 13 on the upper end surface of the bottom plate 3, and the upper parts of both sides of the support frame 10 are fixedly connected to side plates 12, and an opening 15 is provided in the center of one side of the side plate 12.

[0028] The utility model also includes that the lower parts of both sides of the mounting frame 4 are fixedly connected with mounting ears 5, the bottom end of the mounting frame 4 is provided with a second mounting hole 18 in the center, and the upper end surface of the base plate 3 is provided with a first mounting hole 17 adapted to the bottom end of the small torque fork actuator 1 in the center, and the first mounting hole 17 is located directly above the second mounting hole 18.

[0029] The utility model also includes that the first limit members 6 are relatively provided in multiple groups in parallel, the second limit members 9 are relatively provided in two groups, the small torque fork actuator 1 is located between the two relatively groups of the first limit members 6, and the small torque fork actuator 1 is also located between the two groups of the second limit members 9.

[0030] The utility model also includes that the first limit member 6 is fixedly connected to the lower parts of both sides of the small torque fork actuator 1 through the first bolts 7 .

[0031] The utility model further comprises that the second limit member 9 is slidably connected to the slide groove 8, and the second limit member 9 is fixedly connected to the lower parts of both ends of the small torque fork actuator 1 through second bolts.

[0032] When the utility model is in use, the small torque fork actuator 1 is located on the upper end surface of the base plate 3, and the small torque fork actuator 1 is located between the two relatively first limit members 6. At the same time, the small torque fork actuator 1 is also located between the two second limit members 9. The first limit members 6 are fixedly connected to the lower parts of both sides of the small torque fork actuator 1 by the first bolts 7, and then the bottom ends of the second limit members 9 are pushed in the slide grooves 8 toward the direction of the small torque fork actuator 1 until the second limit members 9 are in close contact with both ends of the small torque fork actuator 1, and then one end of the second bolt is passed through the second limit members 9 and fixedly connected to the lower parts of both ends of the small torque fork actuator 1. The small torque fork actuator 1 is conveniently installed through the mounting frame 4 and the mounting ear 5. The top end of the small torque fork actuator 1 can be protected by the design of the top plate 11. The support frame 10 and the top plate 11 jointly enclose a protective cavity 13 on the upper end surface of the base plate 3, and the small torque fork actuator 1 is located in the protective cavity 13.

[0033] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A small torque inner pull rod type fork actuator, characterized in that: The invention comprises a small torque fork actuator (1) and a mounting mechanism (2) for assembling the small torque fork actuator (1), wherein a gear shaft (16) is provided at the center of the top of the small torque fork actuator (1), a horizontally arranged top plate (11) is provided above the gear shaft (16), a mesh plate (14) is fixedly embedded at the center of the upper end surface of the top plate (11), and the mounting mechanism (2) comprises a bottom plate (3), a mounting frame (4), a mounting ear (5), a first stopper (6), a first bolt (7), a second stopper (9), a support frame (10) and a second bolt; The bottom plate (3) is a horizontally arranged rectangular plate-shaped structure, the lower end surface of the bottom plate (3) is fixedly connected to a mounting frame (4), both sides of the upper end surface of the bottom plate (3) are fixedly inlaid with first limit members (6) for limiting the position of the small torque fork actuator (1), both ends of the upper end surface of the bottom plate (3) are provided with second limit members (9) for installing the slide groove (8), both ends of the upper end surface of the bottom plate (3) are located on both sides and fixedly plugged with support frames (10) for supporting the top plate (11), the support frames (10) are relatively parallel and provided with two groups, and both ends of the lower end surface of the top plate (11) are fixedly connected to the top of the support frame (10).

2. A small torque inner pull rod type fork actuator according to claim 1, characterized in that: The support frame (10) and the top plate (11) together enclose a protective cavity (13) on the upper end surface of the bottom plate (3); the upper portions of both sides of the support frame (10) are fixedly connected to side plates (12); and an opening (15) is provided in the center of one side of the side plate (12).

3. The low-torque inner-pull rod type fork actuator according to claim 1, characterized in that: The lower parts of both sides of the mounting frame (4) are fixedly connected with mounting ears (5), a second mounting hole (18) is provided at the center of the bottom end of the mounting frame (4), and a first mounting hole (17) adapted to the bottom end of the small torque fork actuator (1) is provided at the center of the upper end surface of the base plate (3), and the first mounting hole (17) is located directly above the second mounting hole (18).

4. A small torque inner pull rod type fork actuator according to claim 1, characterized in that: The first limit members (6) are provided in multiple groups in parallel with each other, the second limit members (9) are provided in two groups in parallel with each other, the small torque fork actuator (1) is located between the two groups of the first limit members (6), and the small torque fork actuator (1) is also located between the two groups of the second limit members (9).

5. The low-torque inner-pull-rod type fork actuator according to claim 1, characterized in that: The first limiting member (6) is fixedly connected to the lower parts of both sides of the low-torque fork actuator (1) via first bolts (7).

6. The low-torque inner-pull-rod type fork actuator according to claim 1, characterized in that: The second limit member (9) is slidably connected to the slide groove (8), and the second limit member (9) is fixedly connected to the lower parts of both ends of the small torque fork actuator (1) via second bolts.

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