Double-clip type worm gear butterfly valve with high wear resistance

Abstract

The utility model discloses a high wear-resistant wafer type worm gear butterfly valve, which relates to the technical field of wafer type worm gear butterfly valves, and comprises a valve body, a driving box is fixedly mounted on the valve body, a driving component is mounted on the valve body, the driving component comprises a driving shaft, a valve core is rotatably mounted in the valve body, and the driving shaft is fixedly inserted in the valve core. A worm wheel body is fixedly installed on the driving shaft, a worm is rotatably installed in the driving box and meshed with the worm wheel body, a rotating disc is fixedly installed at one end of the worm, a lubricating assembly is installed at the top end of the driving box, and a limiting assembly is installed on the valve body. The driving assembly is used for driving the lubricating assembly to lubricate the connecting position of the worm gear body and the worm, abrasion of the worm gear body and the worm can be reduced, the abrasion resistance of the worm gear body and the worm can be improved, and the service life of the worm gear body and the worm can be prolonged; the rotating angle of the turntable and the opening and closing of the valve core are convenient to observe.

Description

Technical Field

[0001] The utility model relates to the technical field of wafer-type worm gear butterfly valves, in particular to a highly wear-resistant wafer-type worm gear butterfly valve. Background Art

[0002] The butterfly plate of the wafer butterfly valve is installed in the diameter direction of the pipeline. In the cylindrical channel of the butterfly valve body, the disc-shaped butterfly plate rotates around the axis. The rotation angle is between 0°-90°, which can play the role of flow regulation. When the butterfly plate rotates to 90°, the valve reaches the maximum opening. The wafer butterfly valve has a simple structure, small size, light weight, and is composed of only a few parts.

[0003] Most of the existing worm gear wafer-type butterfly valves are not equipped with lubrication devices. If the worm gear wafer-type worm gear butterfly valves are not lubricated in time during use, wear will be caused to the connection between the worm gear and the worm, resulting in reduced wear resistance and service life. In view of the above problems, the inventors propose a highly wear-resistant wafer-type worm gear butterfly valve to solve the above problems. Utility Model Content

[0004] In order to solve the problem that most of the existing worm gear wafer-type worm gear butterfly valves are not equipped with a lubrication device, the utility model aims to provide a highly wear-resistant wafer-type worm gear butterfly valve.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a highly wear-resistant clamped worm gear butterfly valve, comprising a valve body, a drive box fixedly mounted on the valve body, a drive assembly mounted on the valve body, the drive assembly comprising a drive shaft, and the drive shaft is rotatably mounted in the drive box, a valve core is rotatably mounted in the valve body, and the drive shaft is fixedly inserted in the valve core, a worm wheel body is fixedly mounted on the drive shaft, a worm is rotatably mounted in the drive box, and the worm is meshed with the worm wheel body, a turntable is fixedly mounted on one end of the worm, a lubrication assembly is mounted on the top of the drive box, and a limit assembly is mounted on the valve body.

[0006] Preferably, the lubrication assembly includes an oil storage tank, and the oil storage tank is fixedly installed on the top of the driving box, an oil outlet pipe is fixedly installed on the bottom of the oil storage tank, and the oil outlet pipe is connected to the inside of the oil storage tank, a pressure plate is provided on a sliding card in the oil storage tank, a gear rod is movably inserted in the oil storage tank, and the bottom end of the gear rod is fixedly connected to the pressure plate, a gear seat is fixedly installed on the top of the oil storage tank, a rotating shaft is rotatably installed on the gear seat, a driving gear is movably sleeved on the rotating shaft, and the driving gear is meshed with the tooth groove on the gear rod.

[0007] Preferably, four spring blocks distributed in an annular manner are movably mounted on the rotating shaft, four annular grooves are opened in the driving gear, and the spring blocks are movably clamped in the corresponding grooves, a spring limit block is movably mounted on the gear seat, and the spring limit block is movably clamped in the tooth groove of the driving gear, a reducer is fixedly mounted on one side of the driving box, a first bevel gear is fixedly mounted on the bottom end of the inner shaft of the reducer and the worm, and the two first bevel gears are meshed, a second bevel gear is fixedly mounted on the top end of the inner shaft of the reducer and one end of the rotating shaft, and the two second bevel gears are meshed.

[0008] Preferably, the limit assembly includes two annularly distributed fixing plates, and the fixing plates are fixedly mounted on one side of the valve body, one end of the two fixing plates is fixedly mounted with a buckle, a limit rod is fixedly mounted on the turntable, and the limit rod can be movably snapped into the corresponding buckle.

[0009] Compared with the prior art, the beneficial effects of the utility model are:

[0010] 1. In the utility model, by providing a lubrication assembly, the driving assembly is used to drive the lubrication assembly to lubricate the connection between the worm wheel body and the worm, which can reduce the wear of the worm wheel body and the worm, and improve their wear resistance and service life;

[0011] 2. In the present invention, by providing a limit assembly, the limit assembly can limit the rotation angle of the turntable, and it is also convenient to observe the rotation angle of the turntable and the opening and closing of the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the drive box of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal structure of the oil storage tank of the utility model;

[0016] Figure 4 This is a schematic diagram of the split structure of the rotating shaft and the driving gear of the utility model;

[0017] Figure 5 For this utility model Figure 2 A schematic diagram of the enlarged structure in the middle.

[0018] In the figure: 1. valve body; 11. drive box; 2. drive assembly; 21. turntable; 22. worm; 23. reducer; 24. first bevel gear; 25. worm gear body; 26. drive shaft; 3. valve core; 4. lubrication assembly; 41. oil storage tank; 411. oil outlet pipe; 42. gear rod; 43. gear seat; 44. rotating shaft; 441. spring block; 45. second bevel gear; 46. pressure plate; 47. drive gear; 471. slot; 48. spring limit block; 5. limit assembly; 51. fixing plate; 52. buckle; 53. limit rod. DETAILED DESCRIPTION

[0019] 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.

[0020] Example: Figure 1-4 As shown, the utility model provides a highly wear-resistant wafer-type worm gear butterfly valve, including a valve body 1, a drive box 11 is fixedly installed on the valve body 1, a drive assembly 2 is installed on the valve body 1, the drive assembly 2 includes a drive shaft 26, and the drive shaft 26 is rotatably installed in the drive box 11, a valve core 3 is rotatably installed in the valve body 1, and the drive shaft 26 is fixedly inserted in the valve core 3, a worm body 25 is fixedly installed on the drive shaft 26, a worm 22 is rotatably installed in the drive box 11, and the worm 22 is meshed with the worm body 25, a turntable 21 is fixedly installed at one end of the worm 22, and the drive box 11 A lubrication component 4 is installed on the top, and a limit component 5 is installed on the valve body 1. Rotating the turntable 21 drives the worm 22 to rotate, and the worm 22 drives the worm wheel body 25 to rotate. The worm wheel body 25 drives the valve core 3 to rotate and open and close through the driving shaft 26. At the same time, the driving component 2 drives the lubrication component 4 to lubricate the connection between the worm wheel body 25 and the worm 22, which can reduce the wear of the worm wheel body 25 and the worm 22 and improve their wear resistance and service life. The limit component 5 can limit the rotation angle of the turntable 21, and it is also convenient to observe the rotation angle of the turntable 21 and the opening and closing of the valve core 3.

[0021] The lubrication assembly 4 includes an oil storage tank 41 , and the oil storage tank 41 is fixedly installed on the top of the driving box 11 , and an oil outlet pipe 411 is fixedly installed on the bottom of the oil storage tank 41 , and the oil outlet pipe 411 is connected to the inside of the oil storage tank 41 .

[0022] By adopting the above technical solution, the solid lubricating oil in the oil storage tank 41 is dropped to the connection between the worm 22 and the worm wheel body 25 through the oil outlet pipe 411 .

[0023] A pressing plate 46 is slidably provided in the oil storage tank 41 , a gear rod 42 is movably inserted in the oil storage tank 41 , and the bottom end of the gear rod 42 is fixedly connected to the pressing plate 46 .

[0024] By adopting the above technical solution, the gear rod 42 drives the pressing plate 46 to descend to squeeze the solid lubricating oil in the oil storage tank 41 .

[0025] A gear seat 43 is fixedly mounted on the top of the oil storage tank 41 , a rotating shaft 44 is rotatably mounted on the gear seat 43 , a driving gear 47 is movably sleeved on the rotating shaft 44 , and the driving gear 47 is meshed with a tooth groove on the gear rod 42 .

[0026] By adopting the above technical solution, the rotating shaft 44 drives the driving gear 47 to rotate forward, and the driving gear 47 drives the gear rod 42 to descend.

[0027] Four spring blocks 441 distributed in an annular manner are movably mounted on the rotating shaft 44, four annular grooves 471 are opened in the driving gear 47, and the spring blocks 441 are movably clamped in the corresponding grooves 471, and a spring limit block 48 is movably mounted on the gear seat 43, and the spring limit block 48 is movably clamped in the tooth groove of the driving gear 47.

[0028] By adopting the above technical solution, the rotating shaft 44 drives the driving gear 47 to rotate forward through the spring block 441. When the rotating shaft 44 reverses, the driving gear 47 is limited by the spring limit block 48 (the spring limit block 48 is in the shape of a right-angled slope), so that the driving gear 47 does not follow the reverse rotation of the rotating shaft 44. When new oil needs to be added to the oil storage tank 41, the position of the gear rod 42 can be manually adjusted.

[0029] A reducer 23 is fixedly installed on one side of the drive box 11, and a first bevel gear 24 is fixedly installed on the bottom end of the inner shaft of the reducer 23 and the worm 22, and the two first bevel gears 24 are meshed, and a second bevel gear 45 is fixedly installed on the top end of the inner shaft of the reducer 23 and one end of the rotating shaft 44, and the two second bevel gears 45 are meshed.

[0030] By adopting the above technical solution, the worm 22 drives the inner shaft of the reducer 23 to rotate at a reduced speed through the first bevel gear 24 , and the inner shaft of the reducer 23 drives the rotating shaft 44 to rotate through the second bevel gear 45 .

[0031] The limiting assembly 5 includes two fixing plates 51 distributed in an annular manner, and the fixing plates 51 are fixedly installed on one side of the valve body 1 , and a buckle 52 is fixedly installed on one end of the two fixing plates 51 .

[0032] By adopting the above technical solution, the fixing plate 51 can limit the position of the turntable 21 .

[0033] A limit rod 53 is fixedly mounted on the rotating disk 21 , and the limit rod 53 can be movably inserted into a corresponding buckle 52 .

[0034] By adopting the above technical solution, the limiting rod 53 is inserted into the buckle 52 for fixation.

[0035] Working principle: When the utility model is in use, the rotating turntable 21 drives the worm 22 to rotate, the worm 22 drives the worm wheel body 25 to rotate, the worm wheel body 25 drives the valve core 3 to rotate and open and close through the driving shaft 26, and at the same time, the worm 22 drives the inner shaft of the reducer 23 to rotate at a reduced speed through the first bevel gear 24, and the inner shaft of the reducer 23 drives the rotating shaft 44 to rotate through the second bevel gear 45, and the rotating shaft 44 drives the driving gear 47 to rotate forward through the vertical surface of the spring block 441 (the shape of the spring block 441 is a right-angle arc surface), and the driving gear 47 drives the gear rod 42 to descend, and the gear rod 42 drives the pressure plate 46 to descend to squeeze the solid lubricant in the oil storage tank 41 (when the rotating shaft 44 is reversed, the vertical surface of the spring limit block 48 is used to limit the driving gear 47, so that the driving gear 47 It does not follow the reverse rotation of the rotating shaft 44. At this time, the arc surface of the spring block 441 on the rotating shaft 44 contacts the groove 471 on the driving gear 47, so that the spring block 441 is retracted into the rotating shaft 44, so that the rotating shaft 44 is reversed alone. When new oil needs to be added to the oil storage tank 41, the position of the gear rod 42 can be manually adjusted) to make the solid lubricating oil in the oil storage tank 41 fall to the connection between the worm 22 and the worm wheel body 25 through the oil outlet pipe 411, and lubricate the connection between the worm wheel body 25 and the worm 22, which can reduce the wear of the worm wheel body 25 and the worm 22, and improve their wear resistance and service life. The limiting rod 53 on the fixed plate 51 and the turntable 21 can limit the rotation angle of the turntable 21, which is also convenient for observing the rotation angle of the turntable 21 and the opening and closing of the valve core 3.

[0036] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A highly wear-resistant wafer-type worm gear butterfly valve, comprising a valve body (1), characterized in that: A drive box (11) is fixedly mounted on the valve body (1), a drive assembly (2) is mounted on the valve body (1), the drive assembly (2) comprises a drive shaft (26), and the drive shaft (26) is rotatably mounted in the drive box (11), a valve core (3) is rotatably mounted in the valve body (1), and the drive shaft (26) is fixedly inserted in the valve core (3), a worm gear body (25) is fixedly mounted on the drive shaft (26), a worm (22) is rotatably mounted in the drive box (11), and the worm (22) is meshed with the worm gear body (25), a turntable (21) is fixedly mounted on one end of the worm (22), a lubrication assembly (4) is mounted on the top end of the drive box (11), and a limit assembly (5) is mounted on the valve body (1).

2. A highly wear-resistant wafer-type worm gear butterfly valve as claimed in claim 1, characterized in that: The lubrication assembly (4) comprises an oil storage tank (41), and the oil storage tank (41) is fixedly mounted on the top end of the drive box (11), and an oil outlet pipe (411) is fixedly mounted on the bottom end of the oil storage tank (41), and the oil outlet pipe (411) is communicated with the interior of the oil storage tank (41).

3. A highly wear-resistant wafer-type worm gear butterfly valve as claimed in claim 2, characterized in that: A pressing plate (46) is slidably mounted in the oil storage box (41), a gear rod (42) is movably inserted in the oil storage box (41), and the bottom end of the gear rod (42) is fixedly connected to the pressing plate (46).

4. A highly wear-resistant wafer-type worm gear butterfly valve as claimed in claim 2, characterized in that: A gear seat (43) is fixedly mounted on the top of the oil storage tank (41), a rotating shaft (44) is rotatably mounted on the gear seat (43), a driving gear (47) is movably sleeved on the rotating shaft (44), and the driving gear (47) is meshed with a tooth groove on the gear rod (42).

5. A highly wear-resistant wafer-type worm gear butterfly valve as claimed in claim 4, characterized in that: Four spring blocks (441) are movably mounted on the rotating shaft (44) and are distributed in an annular manner. Four grooves (471) are arranged in an annular manner in the driving gear (47), and the spring blocks (441) are movably engaged in the corresponding grooves (471). A spring stop block (48) is movably mounted on the gear seat (43), and the spring stop block (48) is movably engaged in the tooth groove of the driving gear (47).

6. A highly wear-resistant wafer-type worm gear butterfly valve as claimed in claim 1, characterized in that: A reducer (23) is fixedly mounted on one side of the drive box (11); a first bevel gear (24) is fixedly mounted on the bottom end of the inner shaft of the reducer (23) and the worm (22), and the two first bevel gears (24) are meshed; a second bevel gear (45) is fixedly mounted on the top end of the inner shaft of the reducer (23) and one end of the rotating shaft (44), and the two second bevel gears (45) are meshed.

7. A highly wear-resistant wafer-type worm gear butterfly valve as claimed in claim 1, characterized in that: The limit assembly (5) comprises two fixing plates (51) distributed in an annular shape, and the fixing plates (51) are fixedly mounted on one side of the valve body (1), and one end of the two fixing plates (51) is fixedly mounted with a buckle (52).

8. A highly wear-resistant wafer-type worm gear butterfly valve as claimed in claim 1, characterized in that: A limiting rod (53) is fixedly mounted on the rotating disk (21), and the limiting rod (53) can be movably snapped into a corresponding buckle (52).

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