Valve counter

Abstract

The utility model discloses a valve counter which comprises a mounting frame, an input shaft, an input gear, an opening gear set and a closing gear set, and the opening gear set comprises an opening shaft arranged on the mounting frame and a plurality of opening counting gears rotationally arranged on the opening shaft in the axial direction. The closing gear set comprises a closing shaft arranged on the mounting frame and a plurality of closing counting gears rotationally arranged on the closing shaft in the axial direction; the device further comprises an adjusting assembly, the adjusting assembly comprises a clutch rod and a carrier gear, the clutch rod is movably installed on the installation frame, the carrier gear is rotationally arranged on the clutch rod, and when the clutch rod moves in the axial direction, the carrier gear rotates. And the carrier gear is provided with a first position which is simultaneously meshed with the opening counting gear and the closing counting gear at the rear end and a second position which is completely separated from the opening counting gear and the closing counting gear at the rear end. According to the utility model, the counting gear can be adjusted as required to realize the adjustment of the stroke of the actuator, so that the accurate opening and closing of the valve are ensured, and the use is very convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of valves, in particular to a valve counter. Background Art

[0002] Electric actuators are widely used in valve control in the fields of petroleum, natural gas, water treatment, and ships. These applications have extremely high requirements for the safety of electric actuators after power failure and the performance stability after re-operation. After the actuator is started, it is required to correctly transmit the same direction of movement regardless of forward or reverse rotation, accurately transmit the same torque, and be able to stop accurately when stopped.

[0003] In order to achieve precise stroke control of the actuator, a counter is often configured on the electric actuator. The two sets of gears on the technical device control the motor's stroke in the clockwise and counterclockwise directions respectively. However, the existing counter cannot adjust the counting gear to adjust the actuator stroke, so the counter of the corresponding specification can only be configured according to the set stroke, which is very inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a valve counter. The utility model can adjust the counting gear according to the needs to achieve the adjustment of the actuator stroke, thereby ensuring the accurate opening and closing of the valve, and is very convenient to use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a valve counter, comprising a mounting frame, an input shaft, an input gear, an opening gear set, and a closing gear set, wherein the input gear is installed on the input shaft in linkage, and the two are key-connected, the mounting frame is composed of a front plate, a rear plate, and a connecting rod connecting the front plate and the rear plate together, the opening gear set comprises an opening shaft arranged on the mounting frame and a plurality of opening counting gears axially rotatably arranged on the opening shaft, the closing gear set comprises a closing shaft arranged on the mounting frame and a plurality of closing counting gears axially rotatably arranged on the closing shaft, the mounting frame is also provided with an opening transmission shaft and a closing transmission shaft, and a plurality of opening transmission shafts are installed in linkage on the opening transmission shaft, which are respectively meshed with the corresponding opening counting gears An opening transmission gear, a plurality of closing transmission gears respectively meshing with corresponding closing counting gears are interlockingly installed on the closing transmission shaft, an opening cam and a closing cam are respectively interlockingly installed on the ends of the opening transmission shaft and the closing transmission shaft, an opening travel switch and a closing travel switch respectively cooperating with the opening cam and the closing cam are provided on the mounting frame; an adjusting component is also included, the adjusting component includes a clutch rod and a bridge gear, the clutch rod is movably installed on the mounting frame, the bridge gear is rotatably arranged on the clutch rod, when the clutch rod moves axially, the bridge gear has a first position simultaneously meshing with the opening counting gear and the closing counting gear located at the rear end and a second position completely disengaged from the opening counting gear and the closing counting gear at the rear end.

[0006] By adopting the above technical solution, the opening gear group and the closing gear group are driven by the bridge gear. When the opening stroke or the closing stroke needs to be adjusted, it is only necessary to push the clutch lever axially to move the bridge gear to the second position, and then rotate the opening shaft or the closing shaft to adjust the opening counting gear or the closing counting gear, and then push the clutch lever back to the first position to make the bridge gear mesh with the opening counting gear and the closing counting gear at the rear end at the same time to realize the adjustment of the actuator stroke, thereby ensuring the accurate opening and closing of the valve, which is very convenient to use.

[0007] The utility model is further configured such that the adjustment component also includes a limiting sleeve, the limiting sleeve is arranged on the mounting frame, the clutch rod passes through the limiting sleeve, the clutch rod is provided with at least one limiting protrusion on the outer periphery, and the limiting sleeve is provided with a first limiting groove and a second limiting groove at one end close to the bridge gear. When the bridge gear is in the first position, the limiting protrusion on the clutch rod is embedded in the first limiting groove, and when the bridge gear is in the second position, the limiting protrusion on the clutch rod is embedded in the second limiting groove.

[0008] By adopting the above technical solution, the clutch rod and the bridge gear can be circumferentially limited when the bridge gear is located at the first position and the second position respectively, thereby improving the stability of the structure.

[0009] The utility model is further configured such that the adjustment component also includes a spring and a retaining spring, the retaining spring is clamped on the clutch rod, the spring sleeve is arranged on the outer periphery of the clutch rod, one end of the spring is against the retaining spring, and the other end of the spring is against the limiting shaft sleeve, so that the limiting protrusion is limited in the first limiting groove or the second limiting groove under the action of the spring force.

[0010] By adopting the above technical solution, the stability of the adjustment component structure can be further improved.

[0011] The utility model is further configured that the front ends of the opening transmission shaft, the closing transmission shaft and the clutch rod are all provided with a straight groove.

[0012] By adopting the above technical solution, it is convenient to rotate the opening transmission shaft, the closing transmission shaft and the clutch lever.

[0013] The utility model is further configured to include an angle display disk, a pointer, an angle transmission rod, an angle transmission gear, a first gear shaft and a second gear shaft. The first gear shaft and the second gear shaft are installed on a mounting frame. The first gear shaft and the second gear shaft are axially provided with large and small gear sets meshing in sequence. A branch gear meshing with the large and small gear sets is installed in a linkage manner on the input shaft. The angle transmission rod is rotatably installed on the mounting frame. The angle transmission gear is linkage installed on the angle transmission rod, and a locking head is radially penetrated on the angle transmission gear. A plurality of locking grooves for the locking head to be inserted are evenly arranged on the angle transmission rod in a circumferential direction. The angle display disk is installed at the end of the angle transmission rod, and the pointer is installed on the mounting frame to point to the scale of the angle display disk.

[0014] By adopting the above technical solution, the display of the rotation angle of the worm gear can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the adjustment component of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of the utility model from a first viewing direction;

[0018] Figure 4 It is a second view structural schematic diagram of the internal structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the matching structure of the angle transmission rod and the angle transmission gear of the utility model;

[0020] Figure 6 for Figure 5 Cross-sectional view of the structure.

[0021] In the figure: 1. mounting frame; 2. input shaft; 3. input gear; 4. opening gear set; 5. closing gear set; 6. opening shaft; 7. opening counting gear; 8. closing shaft; 9. closing counting gear; 10. opening transmission shaft; 11. closing transmission shaft; 12. opening transmission gear; 13. closing transmission gear; 14. opening cam; 15. closing cam; 16. opening travel switch; 17. closing travel switch; 18. adjustment assembly; 19. clutch lever; 20 , bridge gear; 21, first position; 22, second position; 23, limiting protrusion; 24, first limiting groove; 25, second limiting groove; 26, spring; 27, retaining spring; 28, straight groove; 29, angle display plate; 30, pointer; 31, angle transmission rod; 32, angle transmission gear; 33, first gear shaft; 34, second gear shaft; 35, large and small gear set; 36, branch gear; 37, locking head; 38, locking groove; 39, limiting sleeve. 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] Example: As attached Figures 1 to 6The valve counter shown in the figure comprises a mounting frame 1, an input shaft 2, an input gear 3, an opening gear set 4, and a closing gear set 5. The input gear 3 is installed on the input shaft 2 in a linkage manner. The opening gear set 4 comprises an opening shaft 6 arranged on the mounting frame 1 and a plurality of opening counting gears 7 axially rotatably arranged on the opening shaft 6. The closing gear set 5 comprises a closing shaft 8 arranged on the mounting frame 1 and a plurality of closing counting gears 9 axially rotatably arranged on the closing shaft 8. Both the opening counting gear 7 and the closing counting gear 9 are decimal gear sets or hexadecimal gear sets. The mounting frame 1 is also provided with an opening transmission shaft 10 and a closing transmission shaft 11. The opening transmission shaft 10 is linked to be installed with a plurality of opening transmission gears 12 respectively meshing with the corresponding opening counting gears 7. The closing transmission shaft 11 is linked to be installed with A plurality of closing transmission gears 13 respectively meshed with the corresponding closing counting gears 9, the ends of the opening transmission shaft 10 and the closing transmission shaft 11 are respectively linked with an opening cam 14 and a closing cam 15, and the mounting frame 1 is provided with an opening travel switch 16 and a closing travel switch 17 for respectively cooperating with the opening cam 14 and the closing cam 15; it also includes an adjustment component 18, the adjustment component 18 includes a clutch rod 19 and a bridge gear 20, the clutch rod 19 is movably mounted on the mounting frame 1, and the bridge gear 20 is rotatably set on the clutch rod 19, when the clutch rod 19 moves axially, the bridge gear 20 has a first position 21 that is simultaneously meshed with the opening counting gear 7 and the closing counting gear 9 located at the rear end, and a second position 22 that is completely separated from the opening counting gear 7 and the closing counting gear 9 at the rear end. The opening gear set 4 and the closing gear set 5 are driven by the bridge gear 20. When the opening stroke or the closing stroke needs to be adjusted, it is only necessary to push the clutch rod 19 axially to move the bridge gear 20 to the second position 22, and then rotate the opening shaft 6 or the closing shaft 8 to adjust the opening counting gear 7 or the closing counting gear 9, and then move the clutch rod 19 back to the first position 21, so that the bridge gear 20 is engaged with the opening counting gear 7 and the closing counting gear 9 at the rear end at the same time to realize the adjustment of the actuator stroke, thereby ensuring the accurate opening and closing of the valve, which is very convenient to use.

[0024] As attached Figure 1 and attached Figure 2As shown, the adjustment assembly 18 also includes a limiting sleeve 39, which is arranged on the mounting frame 1, and the clutch rod 19 passes through the limiting sleeve 39. The clutch rod 19 is provided with at least one limiting protrusion 23 on the outer circumference, and the limiting sleeve 39 is provided with a first limiting groove 24 and a second limiting groove 25 at one end thereof close to the bridge gear 20. When the bridge gear 20 is located at the first position 21, the limiting protrusion 23 on the clutch rod 19 is embedded in the first limiting groove 24, and when the bridge gear 20 is located at the second position 22, the limiting protrusion 23 on the clutch rod 19 is embedded in the second limiting groove 25. When the bridge gear 20 is located at the first position 21 and the second position 22, respectively, the clutch rod 19 and the bridge gear 20 can be circumferentially limited to improve the stability of the structure.

[0025] As attached Figure 1 and attached Figure 2 As shown, the adjustment assembly 18 also includes a spring 26 and a retaining spring 27, the retaining spring 27 is clamped on the clutch rod 19, the spring 26 is sleeved on the outer periphery of the clutch rod 19, one end of the spring 26 abuts against the retaining spring 27, and the other end of the spring 26 abuts against the limiting shaft sleeve 39, so that the limiting protrusion 23 is limited in the first limiting groove 24 or the second limiting groove 25 under the action of the spring 26. This design can further improve the stability of the structure of the adjustment assembly 18.

[0026] As attached Figure 1 and attached Figure 2 As shown, the front ends of the opening transmission shaft 10, the closing transmission shaft 11 and the clutch lever 19 are all provided with a straight groove 28. The straight groove 28 is provided for a straight screwdriver to be inserted, so as to facilitate the rotation operation of the opening transmission shaft 10, the closing transmission shaft 11 and the clutch lever 19.

[0027] As attached Figures 3 to 6 As shown, it also includes an angle display plate 29, a pointer 30, an angle transmission rod 31, an angle transmission gear 32, a first gear shaft 33 and a second gear shaft 34, the first gear shaft 33 and the second gear shaft 34 are mounted on the mounting frame 1, the first gear shaft 33 and the second gear shaft 34 are provided with a large and small gear set 35 meshing in sequence in the axial direction, the input shaft 2 is linked with a branch gear 36 meshing with the large and small gear set 35, the angle transmission rod 31 is rotatably mounted on the mounting frame 1, the angle transmission gear 32 is linked with the angle transmission rod 31, and a locking head 37 is radially penetrated on the angle transmission gear 32, and a plurality of locking grooves 38 for the locking head 37 to be inserted are uniformly arranged on the angle transmission rod 31 along the circumferential direction, the angle display plate 29 is mounted on the end of the angle transmission rod 31, and the pointer 30 is mounted on the mounting frame 1 to point to the scale of the angle display plate 29. This design can realize the display of the rotation angle of the worm gear.

Claims

1. A valve counter, comprising a mounting frame (1), an input shaft (2), an input gear (3), an opening gear set (4), and a closing gear set (5), wherein the input gear (3) is mounted on the input shaft (2) in a linkage manner, the opening gear set (4) comprises an opening shaft (6) arranged on the mounting frame (1) and a plurality of opening counting gears (7) axially rotatably arranged on the opening shaft (6), the closing gear set (5) comprises a closing shaft (8) arranged on the mounting frame (1) and a plurality of closing counting gears (9) axially rotatably arranged on the closing shaft (8), the mounting frame (1) is also provided with an opening transmission shaft (10) and a closing transmission shaft (11). The invention relates to a mounting frame (11), wherein a plurality of opening transmission gears (12) respectively meshing with corresponding opening counting gears (7) are installed on the opening transmission shaft (10), and a plurality of closing transmission gears (13) respectively meshing with corresponding closing counting gears (9) are installed on the closing transmission shaft (11), an opening cam (14) and a closing cam (15) are installed on the ends of the opening transmission shaft (10) and the closing transmission shaft (11), respectively, and an opening travel switch (16) and a closing travel switch (17) respectively cooperating with the opening cam (14) and the closing cam (15) are provided on the mounting frame (1); the invention is characterized in that: The invention also comprises an adjusting assembly (18), wherein the adjusting assembly (18) comprises a clutch rod (19) and a bridge gear (20), wherein the clutch rod (19) is movably mounted on the mounting frame (1), and the bridge gear (20) is rotatably mounted on the clutch rod (19), and when the clutch rod (19) moves axially, the bridge gear (20) has a first position (21) in which it is simultaneously engaged with an opening counting gear (7) and a closing counting gear (9) located at the rear end, and a second position (22) in which it is completely disengaged from the opening counting gear (7) and the closing counting gear (9) at the rear end.

2. The valve counter according to claim 1, characterized in that: The adjustment assembly (18) further comprises a limiting sleeve (39), wherein the limiting sleeve (39) is arranged on the mounting frame (1); the clutch rod (19) passes through the limiting sleeve (39); the clutch rod (19) is provided with at least one limiting protrusion (23) on the outer periphery; the limiting sleeve (39) is provided with a first limiting groove (24) and a second limiting groove (25) at one end thereof close to the bridge gear (20); when the bridge gear (20) is located at the first position (21), the limiting protrusion (23) on the clutch rod (19) is embedded in the first limiting groove (24); and when the bridge gear (20) is located at the second position (22), the limiting protrusion (23) on the clutch rod (19) is embedded in the second limiting groove (25).

3. The valve counter according to claim 2, characterized in that: The adjustment assembly (18) further comprises a spring (26) and a retaining spring (27), wherein the retaining spring (27) is clamped on the clutch rod (19), and the spring (26) is sleeved on the outer periphery of the clutch rod (19), and one end of the spring (26) abuts against the retaining spring (27), and the other end of the spring (26) abuts against the limiting shaft sleeve (39), so that the limiting protrusion (23) is limited in the first limiting groove (24) or the second limiting groove (25) under the action of the spring force.

4. The valve counter according to claim 1, characterized in that: The front ends of the opening transmission shaft (10), the closing transmission shaft (11) and the clutch rod (19) are all provided with a straight groove (28).

5. The valve counter according to claim 1, characterized in that: The invention also comprises an angle display plate (29), a pointer (30), an angle transmission rod (31), an angle transmission gear (32), a first gear shaft (33) and a second gear shaft (34), wherein the first gear shaft (33) and the second gear shaft (34) are mounted on the mounting frame (1), and the first gear shaft (33) and the second gear shaft (34) are provided with a large and small gear set (35) meshing in sequence in the axial direction, and a branch gear (36) meshing with the large and small gear set (35) is linkedly mounted on the input shaft (2), and the angle transmission gear (32) is provided with a first gear shaft (33) and a second gear shaft (34) meshing with each other in the axial direction. The rod (31) is rotatably mounted on the mounting frame (1), the angle transmission gear (32) is linked to be mounted on the angle transmission rod (31), and a locking head (37) is radially penetrated on the angle transmission gear (32), a plurality of locking grooves (38) for the locking head (37) to be inserted are evenly arranged on the angle transmission rod (31) along the circumferential direction, the angle display disk (29) is mounted on the end of the angle transmission rod (31), and the pointer (30) is mounted on the mounting frame (1) to point to the scale of the angle display disk (29).

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