High-sensitivity direct drive valve displacement measuring device

Abstract

The utility model discloses a high sensitivity direct drive valve displacement measuring device, comprising a valve body and a mounting rack, a rising stem is arranged in the valve body, the mounting rack is provided with a first fixing rack and a second fixing rack which are oppositely arranged, the first fixing rack and the second fixing rack are respectively provided with an infrared emitter and an infrared receiver, and the infrared emitter and the infrared receiver are connected with the rising stem. Mounting boxes are fixedly mounted on the first fixing frame and the second fixing frame correspondingly, two sets of winding rods which are symmetrically distributed are arranged in the mounting boxes, dustproof films are wound on the two sets of winding rods correspondingly, and friction belts are mounted on the two sides of the mounting boxes correspondingly; the infrared transmitter and the infrared receiver which are located on the first fixing frame and the second fixing frame are wrapped through the arranged mounting box and the dustproof film in the mounting box, dustproof protection of the infrared transmitter and the infrared receiver is achieved, and automatic cleaning of the surface of the dustproof film is achieved through the arranged friction belt and the scraper.

Description

Technical Field

[0001] The utility model relates to the technical field of drive valve displacement measurement, in particular to a high-sensitivity direct drive valve displacement measurement device. Background Art

[0002] A high-sensitivity direct-drive valve is a valve that uses electromagnetic force to directly drive the valve core, characterized by high sensitivity and fast response. This valve typically uses electromagnetic force generated by a solenoid coil acting directly on the valve core, enabling rapid opening and closing. The flow of the medium can be precisely controlled by varying the current. Displacement measurement of high-sensitivity direct-drive valves is a crucial tool for ensuring valve performance and reliability. By measuring displacement, the valve's operating status can be monitored in real time, allowing potential issues to be identified and resolved promptly, thereby ensuring proper valve operation. Currently, displacement measurement devices use infrared displacement sensors mounted at the valve location, ensuring close contact between the sensor and the valve. The sensor's measurement range covers the entire displacement range of the valve, enabling displacement measurement of direct-drive valves.

[0003] When the displacement measuring device in the prior art is used, the infrared displacement sensor is directly installed on the surface of the direct-drive valve. The infrared displacement sensor is directly exposed to the air. Dust in the air will adhere to the surface of its infrared receiver and transmitter, thereby affecting the emission and reception sensitivity of infrared rays, resulting in a reduction in the accuracy of the direct-drive valve displacement measurement. Utility Model Content

[0004] The purpose of the present utility model is to provide a high-sensitivity direct-drive valve displacement measuring device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a high-sensitivity direct-drive valve displacement measuring device, comprising a valve body and a mounting bracket, the valve body being provided with an open rod, the open rod being provided with a slot, the mounting bracket being provided with two groups of oppositely arranged first fixing brackets and second fixing brackets, the first fixing bracket and the second fixing bracket being provided with an infrared transmitter and an infrared receiver respectively, the first fixing bracket and the second fixing bracket being fixedly installed with a mounting box, the mounting box being provided with two groups of symmetrically distributed winding rods, the two groups of winding rods being wrapped with a dustproof film, friction belts being respectively installed on both sides of the mounting box, two groups of symmetrically distributed scrapers being provided on both sides of the mounting box, the two groups of scrapers being distributed corresponding to the friction belts respectively, a mounting ring being provided at the left end of the first fixing bracket, a plurality of groups of annularly distributed adjusting rods being provided in the first fixing bracket, a clamping plate being fixedly installed on the plurality of adjusting rods, the clamping plate being arranged corresponding to the slot, and the clamping plate being movably connected to the open rod through the slot.

[0006] As a further preferred embodiment of the present technical solution, the first fixing frame is slidably connected to the mounting frame, the second fixing frame is fixedly connected to the mounting frame, and both the first fixing frame and the second fixing frame are provided with sealing covers, which are fixedly mounted to the corresponding first fixing frame and second fixing frame respectively by bolts.

[0007] As a further preferred embodiment of the present technical solution, two groups of fixed frames are fixedly installed in the installation box, and the two groups of fixed frames are respectively distributed on both sides of the dust-proof film. The two groups of winding rods respectively pass through the installation box and are rotatably connected to the installation box. The two groups of winding rods are both sleeved with transmission wheels, and a transmission belt is provided in the installation box, and the transmission belt is respectively connected to the two groups of transmission wheels.

[0008] As a further preferred embodiment of the present technical solution, two groups of symmetrically distributed support rods and two groups of symmetrically distributed ejector rods are fixedly installed in the installation box, the dust-proof film is slidingly connected to the two groups of support rods and the ejector rods respectively, the two groups of friction belts are respectively arranged corresponding to the two groups of ejector rods, and the dust-proof film is respectively in contact with the surfaces of the two groups of friction belts.

[0009] As a further preferred embodiment of the present technical solution, two groups of symmetrically distributed mounting rods are provided on both sides of the mounting box, and two groups of symmetrically distributed pulleys and belts are sleeved on the mounting rods in the two groups, and the belts are respectively connected to the pulleys on the two groups of mounting rods for transmission, and the friction belts are respectively fixedly connected to the two groups of belts on both sides.

[0010] As a further preferred embodiment of the present technical solution, the two groups of scrapers are rotatably connected to the mounting box through a rotating shaft, and a second gear is installed on both groups of scrapers. A rack and a cylinder are provided in the mounting box, and the rack is meshed with the second gear, and the rack is connected to the output end of the cylinder piston rod, and the rack is slidably connected to the mounting box.

[0011] As a further preferred embodiment of the present technical solution, the mounting ring is rotatably connected to the first fixing frame via a bearing, inner and outer gear rings are fixedly mounted on the mounting ring, multiple groups of adjusting rods are rotatably connected to the first fixing frame via rotating shafts, multiple groups of adjusting rods are sleeved with a first gear, the first gear is meshed with the inner and outer gear rings, a driving wheel is provided in the first fixing frame, the driving wheel is rotatably connected to the first fixing frame via a rotating shaft, and the driving wheel is meshed with the inner and outer gear rings.

[0012] The utility model provides a high-sensitivity direct-drive valve displacement measuring device, which has the following beneficial effects:

[0013] (1) According to the utility model, after the exposed rod moves, the infrared transmitter converts the electrical signal into an infrared signal and sends it out through the transmitter. After receiving the infrared signal, the infrared receiver converts the infrared signal into an electrical signal for decoding processing, thereby realizing the measurement of the displacement distance of the exposed rod. The infrared transmitter and the infrared receiver located on the first fixing frame and the second fixing frame are wrapped by the provided installation box and the dustproof film in the installation box, thereby realizing dustproof protection for the infrared transmitter and the infrared receiver. The provided friction belt and scraper realize automatic cleaning of the surface of the dustproof film, thereby ensuring that the measuring device can accurately measure the displacement of the exposed rod.

[0014] (2) The utility model realizes the rapid combination and installation of the displacement measuring device and the driving valve through the installation ring in the first fixed frame and multiple groups of annularly distributed adjusting rods and clamping plates, in conjunction with the clamping groove opened on the exposed rod, thereby simplifying the installation process of the displacement measuring device and facilitating the rapid implementation of the driving valve displacement measurement work. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic structural diagram of the first fixing frame of the present invention;

[0017] Figure 3 For the utility model Figure 2 -A magnified view of the structure;

[0018] Figure 4 This is a schematic structural diagram of the installation box of the utility model;

[0019] Figure 5 This is a schematic structural diagram of the dust-proof film of the present invention;

[0020] Figure 6 For the utility model Figure 5 -A magnified view of the structure at point B;

[0021] Figure 7 This is a schematic diagram of the 5-C structure of the utility model;

[0022] In the figure: 1. Valve body; 2. Open rod; 3. Slot; 4. Mounting frame; 5. First fixing frame; 6. Second fixing frame; 7. Mounting ring; 8. Double-sided gear ring; 9. Adjusting rod; 10. Card plate; 11. First gear; 12. Driving wheel; 13. Infrared transmitter; 14. Infrared receiver; 15. Sealing cover; 16. Mounting box; 17. Winding rod; 18. Dustproof film; 19. Fixing frame; 20. Drive wheel; 21. Drive belt; 22. Support rod; 23. Ejector rod; 24. Mounting rod; 25. Pulley; 26. Belt; 27. Friction belt; 28. Scraper; 29. ​​Second gear; 30. Rack; 31. Cylinder. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0024] The utility model provides a technical solution: Figure 1-Figure 7 As shown, in this embodiment, a high-sensitivity direct-drive valve displacement measuring device includes a valve body 1 and a mounting frame 4. A rising rod 2 is provided in the valve body 1, and a slot 3 is provided on the rising rod 2. Two sets of first fixing frames 5 and second fixing frames 6 are provided on the mounting frame 4. The first fixing frame 5 and the second fixing frame 6 are respectively provided with an infrared transmitter 13 and an infrared receiver 14. The first fixing frame 5 and the second fixing frame 6 are fixedly installed with a mounting box 16. Two sets of symmetrically distributed winding rods 17 are provided in the mounting box 16. Dust-proof films 18 are wrapped around the two sets of winding rods 17. Friction belts 27 are respectively installed on both sides of the mounting box 16. Two sets of symmetrically distributed scrapers 28 are provided on both sides of the mounting box 16. The two sets of scrapers 28 are respectively connected to the friction belts 27. The belt 27 is distributed accordingly, a mounting ring 7 is provided at the left end of the first fixing frame 5, and a plurality of groups of annularly distributed adjusting rods 9 are provided in the first fixing frame 5. A card plate 10 is fixedly installed on the plurality of adjusting rods 9, and the card plate 10 is arranged corresponding to the card slot 3. The card plate 10 is movably connected to the open rod 2 through the card slot 3. The infrared transmitter 13 and the infrared receiver 14 located on the first fixing frame 5 and the second fixing frame 6 are wrapped by the provided installation box 16 and the dustproof film 18 in the installation box 16 to achieve dustproof protection for the infrared transmitter 13 and the infrared receiver 14, and the automatic cleaning of the surface of the dustproof film 18 is achieved by the provided friction belt 27 and the scraper 28, thereby ensuring that the measuring device accurately measures the displacement of the open rod 2.

[0025] like Figure 3 、 Figure 4 、 Figure 5 and Figure 6As shown, the first fixing frame 5 is slidably connected to the mounting frame 4, and the second fixing frame 6 is fixedly connected to the mounting frame 4. A sealing cover 15 is provided on the first fixing frame 5 and the second fixing frame 6. The sealing cover 15 is fixedly installed with the corresponding first fixing frame 5 and the second fixing frame 6 by bolts. The sealing cover 15 facilitates the staff to install the infrared transmitter 13 and the infrared receiver 14 in the first fixing frame 5 and the second fixing frame 6 respectively. Two sets of fixing frames 19 are fixedly installed in the mounting box 16. The two sets of fixing frames 19 are respectively distributed on both sides of the dustproof film 18. Two sets of winding rods 17 respectively penetrate the mounting box 16 and are rotatably connected to the mounting box 16. A transmission wheel 20 is sleeved on the two sets of winding rods 17. A transmission belt 21 is provided in the mounting box 16. The transmission belt 21 is respectively The infrared transmitter 13 and the infrared receiver 14 located in the first fixing frame 5 and the second fixing frame 6 are respectively protected by the dustproof film 18 in the installation box 16 to avoid direct contact with dust in the air, thereby effectively preventing dust from adhering to the infrared receiver 14 or the infrared transmitter 13 and causing displacement measurement errors. After the dustproof film 18 has been used for a period of time, the motor in the installation box 16 is started to drive the rotation of the winding rod 17, and the transmission conversion of the dustproof film 18 is realized under the action of the transmission belt 21 and the transmission wheel 20, thereby ensuring the cleanliness of the dustproof film 18 corresponding to the infrared transmitter 13 and the infrared receiver 14, thereby ensuring the accuracy of the displacement measurement device for the displacement measurement of the drive valve. 6 are fixedly installed with two groups of symmetrically distributed support rods 22 and two groups of symmetrically distributed ejector rods 23. The dust-proof film 18 is slidably connected to the two groups of support rods 22 and the ejector rods 23 respectively. The two groups of friction belts 27 are respectively arranged corresponding to the two groups of ejector rods 23. The dust-proof film 18 is respectively in contact with the surfaces of the two groups of friction belts 27. During the transmission process, the dust-proof film 18 is tightened and ejected under the action of the support rods 22 and the ejector rods 23, and the ejected dust-proof film 18 rubs against the friction belts 27. The friction belts 27 adsorb and remove the dust adhered to the dust-proof film 18, thereby realizing automatic cleaning of the dust-proof film 18. Two groups of symmetrically distributed mounting rods 24 are provided on both sides of the mounting box 16. Two groups of symmetrically distributed pulleys 25 and belts 26 are sleeved on the mounting rods 24 in the two groups. , the belts 26 are respectively connected to the pulleys 25 on the two sets of mounting rods 24 for transmission, and the friction belts 27 are respectively fixedly connected to the two sets of belts 26 on both sides. The two sets of scrapers 28 are respectively rotatably connected to the mounting box 16 through the rotating shaft. The two sets of scrapers 28 are installed with a second gear 29. A rack 30 and a cylinder 31 are provided in the mounting box 16. The rack 30 is meshed with the second gear 29, and the rack 30 is connected to the output end of the piston rod of the cylinder 31. The rack 30 is slidably connected to the mounting box 16. Under the action of the belt 26 and the pulley 25, the friction belt 27 is driven to transmit. During the transmission process of the friction belt 27, the dust and impurities cleaned from the dustproof film 18 are taken away from the dustproof film 18, and scraped with the scraper 28 during the transmission process to complete the removal of these dust and impurities.Prevent dust and impurities on the friction belt 27 from re-adhering to the dustproof film 18.

[0026] like Figure 2 and Figure 3 As shown, the mounting ring 7 is rotatably connected to the first fixing frame 5 through a bearing, and an inner and outer gear rings are fixedly installed on the mounting ring 7. Multiple groups of adjusting rods 9 are rotatably connected to the first fixing frame 5 through a rotating shaft, and multiple groups of adjusting rods 9 are sleeved with a first gear 11, which is meshed with the inner and outer gear rings. A driving wheel 12 is provided in the first fixing frame 5, and the driving wheel 12 is rotatably connected to the first fixing frame 5 through a rotating shaft. The driving wheel 12 is meshed with the inner and outer gear rings. The left end of the first fixing frame 5 is sleeved on the upper end of the exposed rod 2, and the rotation of the driving wheel 12 is driven by the motor in the first fixing frame 5, and the double-sided gear ring 8 drives the mounting ring 7 to rotate. The first gear 11 meshed with the double-sided gear ring 8 drives the corresponding adjusting rod 9 to deflect, so that the clamping plate 10 on the adjusting rod 9 is clamped into the clamping slot 3 to complete the rapid fixed installation of the first fixing frame 5 and the exposed rod 2.

[0027] The utility model provides a high-sensitivity direct-drive valve displacement measuring device, and its specific working principle is as follows: a sealing cover 15 is used to facilitate the staff to install the infrared transmitter 13 and the infrared receiver 14 in the first fixing frame 5 and the second fixing frame 6 respectively, and the infrared transmitter 13 and the infrared receiver 14 located in the first fixing frame 5 and the second fixing frame 6 are respectively protected by the dust-proof film 18 in the installation box 16 to avoid direct contact with dust in the air, thereby effectively preventing dust from adhering to the infrared receiver 14 or the infrared transmitter 13 and causing errors in displacement measurement. After the dust-proof film 18 has been used for a period of time, the motor in the installation box 16 is started to drive the rotation of the winding rod 17, and the transmission conversion of the dust-proof film 18 is realized under the action of the transmission belt 21 and the transmission wheel 20, thereby ensuring the cleanliness of the dust-proof film 18 corresponding to the infrared transmitter 13 and the infrared receiver 14, thereby ensuring the accuracy of the displacement measuring device in measuring the displacement of the driven valve. During the transmission process, the dust-proof film 18 is expanded under the action of the support rod 22 and the ejection rod 23 The dust-proof film 18 is automatically cleaned by the friction belt 27 and the dust-proof film 18 is removed by the friction belt 27. The friction belt 27 is driven by the belt 26 and the pulley 25. The dust and impurities removed from the dust-proof film 18 are taken away from the dust-proof film 18 during the transmission process of the friction belt 27. The dust and impurities are scraped against the scraper 28 during the transmission process to complete the removal of the dust and impurities, thereby preventing the dust and impurities on the friction belt 27 from sticking to the dust again. Attached to the dust-proof film 18, the left end of the first fixing frame 5 is sleeved on the upper end of the exposed rod 2. The motor in the first fixing frame 5 drives the driving wheel 12 to rotate, and cooperates with the double-sided gear ring 8 to drive the mounting ring 7 to rotate. The first gear 11 engaged with the double-sided gear ring 8 drives the corresponding adjusting rod 9 to deflect, so that the card plate 10 on the adjusting rod 9 is inserted into the card slot 3 to complete the rapid fixed installation of the first fixing frame 5 and the exposed rod 2. The model of the infrared transmitter 13 is TSAL6100, and the model of the infrared receiver 14 is TSOP2840.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-sensitivity direct-drive valve displacement measuring device, comprising a valve body (1) and a mounting frame (4), characterized in that: The valve body (1) is provided with an open rod (2), and a slot (3) is provided on the open rod (2). The mounting frame (4) is provided with two sets of first fixing frames (5) and second fixing frames (6) which are arranged opposite to each other. The first fixing frame (5) and the second fixing frame (6) are provided with an infrared transmitter (13) and an infrared receiver (14) respectively. The first fixing frame (5) and the second fixing frame (6) are both fixedly installed with a mounting box (16). The mounting box (16) is provided with two sets of symmetrically distributed winding rods (17). The two sets of winding rods (17) are both wrapped with a dustproof film (18). ), friction belts (27) are respectively installed on both sides of the installation box (16), and two groups of symmetrically distributed scrapers (28) are provided on both sides of the installation box (16), and the two groups of scrapers (28) are respectively distributed corresponding to the friction belts (27), a mounting ring (7) is provided at the left end of the first fixing frame (5), and multiple groups of annularly distributed adjustment rods (9) are provided in the first fixing frame (5), and a clamping plate (10) is fixedly installed on the multiple groups of adjustment rods (9), and the clamping plate (10) is arranged corresponding to the clamping slot (3), and the clamping plate (10) is movably clamped with the exposed rod (2) through the clamping slot (3).

2. A high-sensitivity direct-drive valve displacement measuring device according to claim 1, characterized in that: The first fixing frame (5) is slidably connected to the mounting frame (4), and the second fixing frame (6) is fixedly connected to the mounting frame (4). The first fixing frame (5) and the second fixing frame (6) are both provided with sealing covers (15), and the sealing covers (15) are fixedly installed with the corresponding first fixing frame (5) and second fixing frame (6) by bolts.

3. The high-sensitivity direct-drive valve displacement measuring device according to claim 1, characterized in that: Two groups of fixed frames (19) are fixedly installed in the installation box (16), and the two groups of fixed frames (19) are respectively distributed on both sides of the dustproof film (18). The two groups of winding rods (17) respectively penetrate the installation box (16) and are rotatably connected to the installation box (16). The two groups of winding rods (17) are both sleeved with transmission wheels (20). A transmission belt (21) is provided in the installation box (16), and the transmission belt (21) is respectively connected to the two groups of transmission wheels (20).

4. The high-sensitivity direct-drive valve displacement measuring device according to claim 1, characterized in that: Two groups of symmetrically distributed support rods (22) and two groups of symmetrically distributed ejector rods (23) are fixedly installed in the installation box (16); the dustproof film (18) is slidably connected to the two groups of support rods (22) and the ejector rods (23), and the two groups of friction belts (27) are respectively arranged corresponding to the two groups of ejector rods (23); the dustproof film (18) is respectively in contact with the surfaces of the two groups of friction belts (27).

5. The high-sensitivity direct-drive valve displacement measuring device according to claim 1, characterized in that: Two groups of symmetrically distributed mounting rods (24) are provided on both sides of the mounting box (16), and two groups of symmetrically distributed pulleys (25) and belts (26) are sleeved on the mounting rods (24) in the two groups. The belts (26) are respectively connected to the pulleys (25) on the two groups of mounting rods (24). The friction belts (27) are respectively fixedly connected to the two groups of belts (26) on both sides.

6. The high-sensitivity direct-drive valve displacement measuring device according to claim 1, characterized in that: The two groups of scrapers (28) are respectively connected to the installation box (16) through a rotating shaft. The two groups of scrapers (28) are both installed with a second gear (29). A rack (30) and a cylinder (31) are provided in the installation box (16). The rack (30) is meshed with the second gear (29). The rack (30) is connected to the output end of the piston rod of the cylinder (31). The rack (30) is slidably connected to the installation box (16).

7. The high-sensitivity direct-drive valve displacement measuring device according to claim 1, characterized in that: The mounting ring (7) is rotatably connected to the first fixing frame (5) through a bearing, and inner and outer gear rings are fixedly mounted on the mounting ring (7). Multiple groups of adjusting rods (9) are rotatably connected to the first fixing frame (5) through a rotating shaft, and multiple groups of adjusting rods (9) are sleeved with a first gear (11), and the first gear (11) is meshed with the inner and outer gear rings. A driving wheel (12) is provided in the first fixing frame (5), and the driving wheel (12) is rotatably connected to the first fixing frame (5) through a rotating shaft, and the driving wheel (12) is meshed with the inner and outer gear rings.

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