Rapidly detached rotary valve

Abstract

The invention relates to the technical field of pneumatic conveying, and particularly discloses a quick-disassembly rotary valve which comprises a valve body unit at least comprising a rotary valve body, a driving end plate, a disassembly end plate and a rotating shaft, and the driving end plate and the disassembly end plate are detachably connected to the driving end and the disassembly end of the rotary valve body; the two ends of the rotating shaft penetrate through the driving end plate and the dismounting end plate respectively and are in running fit with the driving end plate and the dismounting end plate; the supporting seat is connected to the driving end plate; the driving unit at least comprises a gear motor, and the gear motor is mounted on the supporting seat and is in spline connection with the rotating shaft; the linear sliding rail unit at least comprises a linear bearing support, a linear bearing and a sliding rod, the linear bearing support is arranged outside the rotary valve body, the linear bearing is arranged in the linear bearing support, the sliding rod is arranged in the linear bearing in a sliding and penetrating mode and parallel to the axial direction of the rotary shaft, one end of the sliding rod is connected to the dismounting end plate, and the other end of the sliding rod is provided with a limiting block; and the sliding rod is prevented from falling off from the linear bearing.

Description

Technical Field

[0001] This invention relates to the field of pneumatic conveying technology, particularly to the field of detachable rotary valve technology, and specifically to a quick-disassembly rotary valve. Background Technology

[0002] Rotary valves are key components in pneumatic conveying systems, primarily used to control the quantitative conveying of materials, isolate upstream and downstream pressures, and ensure stable system operation. They are widely used in industries such as chemical, food, building materials, and power. When changing materials or cleaning the internal components of a rotary valve, one side of the casing must be opened first to remove the star-shaped rotor, followed by cleaning of the casing and rotor itself. Traditional rotary valves have complex structures, requiring not only the removal of the end cover but also the disassembly of internal components such as bearings and oil seals before the rotor can be removed for cleaning. Some rotary valves have adjustable disc springs, requiring significant manpower, resources, and time for adjustment before reinstallation and reuse. Furthermore, this method demands considerable disassembly space, various tools, and leads to chaotic on-site management.

[0003] Therefore, it is particularly necessary to design a rotary valve that can be quickly disassembled to meet the requirements of quick disassembly, quick cleaning, quick installation, and saving manpower, material resources, and time. Summary of the Invention

[0004] The purpose of this invention is to design a quick-disassembly rotary valve, which aims to solve the problem that traditional rotary valves, due to their complex structure, cannot meet the requirements of quick disassembly, quick cleaning, quick installation, and saving manpower, material resources, and time.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: This invention designs a quick-disassembly rotary valve, which includes the following structural configuration: A valve body unit includes at least a rotary valve body, a drive end plate, a disassembly end plate, and a rotating shaft. The drive end plate and the disassembly end plate are detachably connected to the opposite drive end and disassembly end of the rotary valve body, respectively, to seal the cavity inside the rotary valve body. The two ends of the rotating shaft pass through the drive end plate and the disassembly end plate, respectively, and form a precise rotational fit with them. An impeller located in the cavity is provided on the rotating shaft. A support base, which is connected to the drive end plate; The drive unit includes at least a geared motor, which is mounted on the support base and its output end is splinedly connected to the rotating shaft; The linear slide rail unit includes at least a linear bearing support, a linear bearing, and a slide rod. The linear bearing support is symmetrically arranged outside the rotary valve body. The linear bearing is disposed in the linear bearing support. The slide rod slides through the linear bearing parallel to the axial direction of the rotating shaft. One end of the slide rod is connected to the disassembly end plate, and the other end is provided with a limit block to prevent the slide rod from falling out of the linear bearing.

[0006] Specifically, the quick-disassembly rotary valve designed in this invention includes a valve body unit, a drive unit, and a linear slide rail unit. By removing the disassembly end plate, the rotating shaft inside the valve body can be quickly pulled out, facilitating cleaning of the valve body and the rotating shaft. Simultaneously, thanks to the linear slide rail unit, after the rotating shaft inside the valve body is disassembled and pulled out, it remains at the same horizontal level as its original installation position. This allows for quick repositioning of the shaft back into the valve body after cleaning.

[0007] In this invention, the rotating shaft is splined to the output end of the geared motor, facilitating disconnection and torque transmission while ensuring reliable performance. This invention's quick-disassembly rotary valve achieves rapid disassembly and cleaning, simplifying maintenance and offering economic and reliable operation.

[0008] Furthermore, a quick-release rotary valve includes an air-sealing assembly disposed at the gap between the rotating shaft and the drive end plate and the disassembly end plate during rotational engagement. The drive end plate and the disassembly end plate are respectively provided with air holes for blowing air into the air-sealing assembly to achieve an air seal.

[0009] Specifically, the gas seal assembly is installed in the gap between the rotating shaft and the drive end plate and the disassembly end plate, providing a certain pressure of gas to prevent materials or dust inside the rotary valve from entering the outside or the bearing.

[0010] Furthermore, a quick-release rotary valve includes a first bearing plate, a first bushing, and a first bearing. The first bearing plate is disposed on the disassembly end plate, the first bushing is sleeved on the end of the rotating shaft away from the geared motor, and the first bearing is sleeved outside the first bushing and disposed inside the first bearing plate.

[0011] Furthermore, a quick-release rotary valve includes a first round nut assembly disposed on the first bushing for securing the first bushing to the end of the shaft.

[0012] Furthermore, a quick-release rotary valve is also provided: the rotary valve further includes a cover plate disposed on the first bearing pressure plate for covering the end of the first round nut assembly and the shaft.

[0013] Furthermore, a quick-disassembly rotary valve is provided: the drive unit further includes a coupling and a drive shaft; the end of the rotating shaft is provided with an external spline, and the end of the drive shaft is provided with an internal spline; one end of the drive shaft is connected to the output end of the geared motor through the coupling, and the other end is splined with the rotating shaft through the engagement of the internal and external splines, with the connection point located inside the support base.

[0014] Furthermore, a quick-disassembly rotary valve is provided: the support base is also equipped with a speed sensor, which is used to detect the rotational speed of the shaft for easy control.

[0015] Furthermore, a quick-disassembly rotary valve is provided with a second bearing pressure plate on the drive end plate; the rotary valve also includes a second bushing and a second bearing; the second bushing is sleeved on the end of the rotating shaft, and the second bearing is sleeved on the outside of the second bushing and disposed inside the second bearing pressure plate; the support seat is connected to the second bearing pressure plate.

[0016] Furthermore, a quick-release rotary valve includes a second round nut assembly disposed on the second bushing for securing the second bushing to the end of the shaft.

[0017] Specifically, both the first and second round nut assemblies in this invention are equipped with round nut retaining washers to prevent axial movement.

[0018] Furthermore, a quick-release rotary valve includes a linear slide rail unit comprising a connecting plate, a slide rod support, and a buffer pad; the connecting plate is detachably connected to the disassembly end plate, and the end of the slide rod is connected to the connecting plate; the slide rod support is connected to the support base, and the slide rod slides through the slide rod support; the buffer pad is connected to the limiting block to prevent the slide rod from falling out of the slide rod support.

[0019] The beneficial effects of this invention are: This invention relates to a quick-disassembly rotary valve. By removing the bolts connecting the disassembly end plate to the valve body, the disassembly end plate, along with the rotating shaft inside the valve body, can be quickly removed. The disassembly end plate, secured to it, moves parallel to the axis of the rotating shaft, achieving rapid, simple, and efficient disassembly, facilitating cleaning of the valve body and the rotating shaft. Thanks to the linear guide rail unit, after the rotating shaft inside the valve body is disassembled and pulled out, it remains at the same horizontal level as its original installation position. This allows for quick repositioning of the rotating shaft back into the valve body after cleaning.

[0020] The quick-disassembly rotary valve designed in this invention features a splined connection between the end of the rotating shaft and the drive shaft. This not only allows for precise positioning, convenient disconnection, and torque transmission, but also results in a simple structure and reliable performance. The quick-disassembly rotary valve designed in this invention has a simple and compact structure. It allows for rapid disassembly and cleaning, facilitates maintenance, and is economical and reliable. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the quick-disassembly rotary valve designed according to Embodiment 1 of the present invention; Figure 2 A cross-sectional view of the quick-disassembly rotary valve designed in Embodiment 1 of the present invention; Figure 3 A top view of the quick-disassembly rotary valve designed according to Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the quick-disassembly rotary valve designed in Embodiment 1 of the present invention after disassembly.

[0023] The markings in the image are as follows: 1-Valve body unit, 2-Support base, 3-Drive unit, 4-Linear slide rail unit, 10-Rotary valve body, 11-Drive end plate, 12-Disassembly end plate, 13-Rotating shaft, 14-Air seal assembly, 15-First bearing pressure plate, 16-First bushing, 17-First bearing, 18-First round nut assembly, 19-Cover plate, 20-Speed ​​sensor, 30-Gear motor, 31-Coupling, 32-Drive shaft, 33-Second bushing, 34-Second bearing, 35-Second round nut assembly, 40-Linear bearing support, 41-Linear bearing, 42-Slide rod, 43-Connecting plate, 44-Slide rod support, 45-Buffer pad, 101-Drive end, 102-Disassembly end, 103-Cavity, 110-Air hole, 111-Second bearing pressure plate, 131-Impeller, 132-External spline, 421-Limit block. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present invention or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be understood that the terms "upper," "lower," "left," "right," "top," and "bottom," etc., indicating orientation or positional relationships, are merely for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Moreover, the terms "first," "second," etc., are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein.

[0026] Example 1

[0027] like Figures 1-4 As shown, this embodiment 1 designs a quick-disassembly rotary valve, which includes the following structural configuration: The valve body unit 1 includes a rotary valve body 10, a drive end plate 11, a disassembly end plate 12, and a rotating shaft 13. The drive end plate 11 and the disassembly end plate 12 are detachably connected to the opposite drive end 101 and disassembly end 102 of the rotary valve body 10 by bolts to seal the cavity 103 inside the rotary valve body 10. The two ends of the rotating shaft 13 pass through the drive end plate 11 and the disassembly end plate 12 respectively and form a precise rotational fit with them. An air-sealing assembly 14 is also provided at the gap between the rotating shaft 13 and the drive end plate 11 and the disassembly end plate 12. Air holes 110 are provided on the drive end plate 11 and the disassembly end plate 12 for supplying air to the air-sealing assembly 14. 4. Air is blown in to achieve an airtight seal at the gap. A first bearing pressure plate 15 is provided on the disassembly end plate 12. A first bushing 16 is fitted on the end of the rotating shaft 13 away from the geared motor 30 and fixed by a first round nut assembly 18. A first bearing 17 is fitted on the outside of the first bushing 16 to form a rotational fit with it. The first bearing 17 is also provided inside the first bearing pressure plate 15. A cover plate 19 is also provided on the first bearing pressure plate 15 to cover the first round nut assembly 18 and the end of the rotating shaft 13. An impeller 131 located in the cavity 103 is also provided on the rotating shaft 13. A second bearing pressure plate 111 is also provided on the drive end plate 11. The support base 2 is connected to the drive end plate 11 (specifically, the support base 2 is connected to the second bearing pressure plate 111). The support base 2 is also provided with a speed sensor 20, which is used to detect the speed of the rotating shaft 13. The drive unit 3 includes a geared motor 30, a coupling 31, and a drive shaft 32. The geared motor 30 is mounted on the support base 2 and serves as a power output unit to drive the rotating shaft 13 to rotate. Specifically, the rotating shaft 13 has an external spline 132 at one end near the geared motor 30. One end of the drive shaft 32 is connected to the output end of the geared motor 30 via the coupling 31, and the other end is provided with an internal spline. The drive shaft 32 and the rotating shaft 13 are connected by the internal splines at their respective ends. The external splines 132 mesh to form a spline connection, realizing transmission. The connection between the drive shaft 32 and the rotating shaft 13 is located inside the support base 2. The speed sensor 20 can detect the speed of the rotating shaft 13. The end of the rotating shaft 13 is fitted with a second bushing 33 and fixed by a second round nut assembly 35. A second bearing 34 is fitted on the outside of the second bushing 33 and is disposed inside the second bearing pressure plate 111. The support base 2 is connected to the second bearing pressure plate 111. And a linear guide rail unit 4, which includes a linear bearing support 40, a linear bearing 41, a slide rod 42, a connecting plate 43, a slide rod support 44, and a buffer pad 45. The linear bearing support 40 is symmetrically arranged outside the rotary valve body 10. The linear bearing 41 is disposed in the linear bearing support 40. The connecting plate 43 is detachably connected to the detachable end plate 12. The slide rod support 44 is connected to the support base 2. The slide rod 42 is parallel to the rotating shaft 1. The axially slidably passes through the linear bearing 41 and the slide rod support 44, with one end of the slide rod 42 connected to the connecting plate 43 and the other end provided with a limit block 421. A buffer pad 45 is also connected to the limit block 421. The limit block 421 provides a limiting function to prevent the slide rod 42 from falling out of the slide rod support 44 due to excessive amplitude when the rotating shaft 13 is pulled out after disassembly. At the same time, the buffer pad 45 provides a buffering function to prevent the limit block 421 from rigidly contacting the slide rod support 44.

[0028] During disassembly, after removing the connecting bolts between the disassembly end plate 12 and the rotary valve body 10, the cavity 103 of the rotary valve can be opened. Then, the connecting plate 43, along with the disassembly end plate 12 and various parts within the disassembly end plate 12, are moved along the slide rod 42. The rotating shaft 13 can then be removed. This quick-disassembly rotary valve designed in Embodiment 1 allows for rapid disassembly and cleaning of the rotary valve, facilitating maintenance and offering economic reliability.

[0029] The above-described preferred embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of the invention. Any obvious variations or modifications derived from the technical solutions of the present invention are still within the protection scope of the present invention.

Claims

1. A quick-disassembly rotary valve, characterized in that, The rotary valve includes the following structural configuration: The valve body unit (1) includes at least a rotary valve body (10), a drive end plate (11), a disassembly end plate (12), and a rotating shaft (13). The drive end plate (11) and the disassembly end plate (12) are detachably connected to the opposite drive end (101) and disassembly end (102) of the rotary valve body (10) to seal the cavity (103) inside the rotary valve body (10). The two ends of the rotating shaft (13) pass through the drive end plate (11) and the disassembly end plate (12) respectively and form a precise rotational fit with them. An impeller (131) is provided on the rotating shaft (13) and located in the cavity (103). Support base (2), which is connected to the drive end plate (11); The drive unit (3) includes at least a geared motor (30), which is mounted on the support base (2) and its output end is connected to the rotating shaft (13) by a spline. And a linear slide rail unit (4), which includes at least a linear bearing support (40), a linear bearing (41) and a slide rod (42). The linear bearing support (40) is disposed outside the rotary valve body (10). The linear bearing (41) is disposed in the linear bearing support (40). The slide rod (42) slides parallel to the axial direction of the rotating shaft (13) and passes through the linear bearing (41). One end of the slide rod (42) is connected to the disassembly end plate (12), and the other end is provided with a limit block (421) to prevent the slide rod (42) from falling out of the linear bearing (41).

2. The quick-disassembly rotary valve according to claim 1, characterized in that, The rotary valve also includes an air-sealing assembly (14), which is disposed at the gap between the rotating shaft (13) and the drive end plate (11) and the disassembly end plate (12) for rotational engagement. The drive end plate (11) and the disassembly end plate (12) are respectively provided with air holes (110) for blowing air into the air-sealing assembly (14) to perform air sealing.

3. A quick-disassembly rotary valve according to claim 1, characterized in that, The rotary valve further includes a first bearing plate (15), a first bushing (16), and a first bearing (17); the first bearing plate (15) is disposed on the disassembly end plate (12), the first bushing (16) is sleeved on the shaft (13) at one end away from the geared motor (30), and the first bearing (17) is sleeved outside the first bushing (16) and disposed inside the first bearing plate (15).

4. A quick-disassembly rotary valve according to claim 3, characterized in that, The rotary valve also includes a first round nut assembly (18) disposed on the first bushing (16) for securing it to the end of the shaft (13).

5. A quick-disassembly rotary valve according to claim 4, characterized in that, The rotary valve also includes a cover plate (19) disposed on the first bearing pressure plate (15) for covering the ends of the first round nut assembly (18) and the shaft (13).

6. A quick-disassembly rotary valve according to claim 1, characterized in that, The drive unit (3) also includes a coupling (31) and a drive shaft (32). The end of the rotating shaft (13) is provided with an external spline (132), and the end of the drive shaft (32) is provided with an internal spline; one end of the drive shaft (32) is connected to the output end of the geared motor (30) through a coupling (31), and the other end is connected to the rotating shaft (13) through the meshing of the internal and external splines, and the connection is located inside the support seat (2).

7. A quick-disassembly rotary valve according to claim 6, characterized in that, The support base (2) is also provided with a speed sensor (20), which is used to detect the speed of the rotating shaft (13).

8. A quick-disassembly rotary valve according to claim 1 or 6, characterized in that, A second bearing pressure plate (111) is also provided on the drive end plate (11). The rotary valve also includes a second bushing (33) and a second bearing (34); the second bushing (33) is sleeved on the end of the rotating shaft (13), and the second bearing (34) is sleeved on the outside of the second bushing (33) and disposed inside the second bearing pressure plate (111); the support seat (2) is connected to the second bearing pressure plate (111).

9. A quick-disassembly rotary valve according to claim 8, characterized in that, The rotary valve also includes a second round nut assembly (35) disposed on the second bushing (33) for securing it to the end of the shaft (13).

10. A quick-disassembly rotary valve according to claim 1, characterized in that, The linear slide rail unit (4) further includes a connecting plate (43), a slide rod support (44), and a buffer pad (45); the connecting plate (43) is detachably connected to the detachable end plate (12), and the end of the slide rod (42) is connected to the connecting plate (43); the slide rod support (44) is connected to the support base (2), and the slide rod (42) slides through the slide rod support (44); the buffer pad (45) is connected to the limiting block (421) to prevent the slide rod (42) from falling out of the slide rod support (44).

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