Rotor valve and high-temperature and high-pressure device

Abstract

The utility model provides a rotor valve and high-temperature and high-pressure equipment. The rotor valve comprises a valve body with a conical valve cavity; the rotor comprises a rotating shaft and a conical valve element arranged on the rotating shaft, the conical valve element is located in the conical valve cavity, and the radial outer surface of the conical valve element is configured to be matched with the radial inner surface of the conical valve cavity in shape; the adjusting mechanism is located at the axial end of the rotating shaft, is in driving connection with the rotating shaft and is configured to drive the rotating shaft to move in the axial direction so as to drive the conical valve element to move in the axial direction to adjust the gap between the conical valve element and the valve body, and the adjusting mechanism comprises a screw and a nut in threaded fit with the screw; the screw rod and the rotating shaft are connected in a relatively rotating manner without changing the axial position, and the nut is arranged in a relatively rotating manner without changing the axial position relative to the valve body; and the power source is in driving connection with the nut so as to drive the nut to rotate. According to the rotor valve, the axial position of the power source and the axial position of the valve body are not changed, and therefore the adjusting precision of an adjusting mechanism is improved.

Description

Technical Field

[0001] This disclosure relates to the field of material feeding technology, and in particular to a rotor valve and a high-temperature and high-pressure device. Background Technology

[0002] In cooking / sterilization production lines, high-temperature and high-pressure equipment is typically used to sterilize materials. Both the inlet and outlet ends are equipped with discharge valves. The discharge valve at the inlet receives materials from upstream of the high-temperature and high-pressure equipment and feeds them into the equipment, while the discharge valve at the outlet delivers the treated materials downstream. Currently, the commonly used discharge valve is the rotor valve. Rotary valves have excellent sealing performance, effectively sealing the high-temperature medium and ensuring continuous material flow in and out of the high-temperature and high-pressure equipment.

[0003] The gap between the valve body and rotor of a rotor valve is adjustable, and the adjustment methods are manual and automatic. Manual adjustment is simple and low-cost, but its adjustment accuracy is poor. Although rotor valves with automatic adjustment are more expensive, they offer faster adjustment speed and higher accuracy. The adjustment mechanism of rotor valves often uses a screw and nut combination to achieve automatic adjustment, and a power source including a drive chain or belt drives the screw to move. However, since the nut is a fixed part, while the screw is a moving and rotating transmission part, the driven pair of the drive chain or belt driving the screw will translate with the screw. This requires a larger gap between the driving and driven pairs, which leads to a longer drive chain or belt. Furthermore, the drive chain or belt has a larger play in both forward and reverse rotation, thus reducing the adjustment accuracy of the adjustment mechanism. Utility Model Content

[0004] The purpose of this disclosure is to provide a rotor valve and a high-temperature and high-pressure device, which aims to solve the problem that in general rotor valves, the driven pair of the power source moves axially with the screw, resulting in a large transmission misalignment of the power source, which in turn reduces the adjustment accuracy of the regulating mechanism.

[0005] This disclosure provides a rotor valve, comprising: a valve body having a conical valve cavity; a rotor including a rotating shaft and a conical valve core disposed on the rotating shaft, the conical valve core being located within the conical valve cavity, the radially outer surface of the conical valve core being configured to mate with the radially inner surface of the conical valve cavity; an adjusting mechanism located at the axial end of the rotating shaft and drivenly connected to the rotating shaft, configured to drive the rotating shaft to move axially thereby driving the conical valve core to move axially to adjust the gap between the conical valve core and the valve body, the adjusting mechanism including a screw and a nut threadedly engaged with the screw, the screw being rotatably connected to the rotating shaft with its axial position unchanged, and the nut being rotatably disposed with its axial position unchanged relative to the valve body; and a power source drivenly connected to the nut to drive the nut to rotate.

[0006] In some embodiments of the rotor valve, the end of the screw near the shaft is connected to the shaft via two first bearings configured to withstand radial and axial forces.

[0007] In some embodiments of the rotor valve,

[0008] The adjusting mechanism further includes a drive unit, and the power source is driven to the nut through the drive unit to drive the nut to rotate about the axis of the nut with the axial position relative to the valve body unchanged. The drive unit includes a drive shaft, and the drive shaft includes a mounting hole. The nut is located in the mounting hole. The drive shaft is driven to the nut and is configured to drive the nut to rotate about the axis of the nut so that the end of the screw away from the drive shaft reciprocates in the mounting hole along the extension direction of the axis of the screw.

[0009] The power source is driven to the drive shaft and is configured to drive the drive shaft to rotate about the axis of the drive shaft.

[0010] In some embodiments of the rotor valve, the rotor valve further includes: a support frame, fixedly disposed relative to the valve body, the inner wall of the support frame forming a receiving cavity; two second bearings, the second bearings being configured to withstand radial and axial forces, located within the receiving cavity and sleeved on the drive shaft, the outer rings of the second bearings being supported on the inner wall of the support frame to be fixed relative to the support frame, the inner rings of the second bearings being fixed to the drive shaft, and the drive shaft being axially fixed and rotatably connected to the support frame via the two second bearings.

[0011] In some embodiments of the rotor valve, the adjusting mechanism further includes: a first limiting device configured to keep the axial position of the two second bearings relative to the drive shaft unchanged; and / or a second limiting device configured to keep the nut relative to the drive shaft unchanged.

[0012] In some embodiments of the rotor valve, the first limiting device includes: an annular flange disposed at one axial end of the drive shaft; a spacer sleeve disposed on the drive shaft and located between the two second bearings; and at least one stop nut disposed at the other axial end of the drive shaft and threadedly engaged with the outer surface of the drive shaft.

[0013] In some embodiments of the rotor valve,

[0014] The mounting hole is configured as a stepped hole, including a stepped surface perpendicular to the axis of the drive shaft;

[0015] The second limiting device includes a stop sleeve, the stop sleeve including a stop surface perpendicular to the axis of the drive shaft, the nut being located between the stop surface and the stepped surface, the stop sleeve being connected to the drive shaft and configured to keep the axial position of the nut relative to the drive shaft unchanged.

[0016] In some embodiments of the rotor valve, the regulating mechanism further includes an oil passage that connects the portion of the receiving cavity located between the two second bearings and the mounting hole.

[0017] In some embodiments of the rotor valve, the regulating mechanism further includes a first limiting device configured to maintain the axial position of the two second bearings relative to the drive shaft. The first limiting device includes a spacer sleeve fitted onto the drive shaft and located between the two second bearings. The oil passage includes:

[0018] A first oil hole is provided on the spacer, and the first end of the first oil hole communicates with the portion of the receiving cavity located between the two second bearings; and

[0019] A second oil hole is provided on the drive shaft. The first end of the second oil hole is connected to the second end of the first oil hole, and the second end of the second oil hole is connected to the mounting hole.

[0020] In some embodiments of the rotor valve, the power source is mounted on the support frame.

[0021] In some embodiments of the rotor valve, the rotor valve further includes an anti-rotation structure configured to limit the circumferential position of the screw and the valve body.

[0022] A second aspect of this disclosure provides a high-temperature and high-pressure device, including the rotor valve described in the first aspect of this disclosure, wherein the rotor valve is disposed at the inlet end and / or outlet end of the high-temperature and high-pressure device.

[0023] Based on the rotor valve provided in this disclosure, by setting the screw of the regulating mechanism to be connected to the rotating shaft in a fixed axial position and rotatable relative to it, setting the nut to be connected to the valve body in a fixed axial position and rotatable relative to it, and driving the power source to the nut, it is beneficial to ensure that the axial position of the power source and the valve body remains unchanged, to avoid transmission play problems, to improve the efficiency and stability of the power source transmission, and thus to improve the regulating accuracy of the regulating mechanism.

[0024] The high-temperature and high-pressure equipment disclosed herein includes the rotor valve of this disclosure, thereby possessing the advantages of the rotor valve of this disclosure.

[0025] Other features and advantages of this disclosure will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0026] The accompanying drawings, which are included to provide a further understanding of this disclosure and form part of this application, illustrate exemplary embodiments of this disclosure and are used to explain this disclosure, but do not constitute an undue limitation of this disclosure. In the drawings:

[0027] Figure 1 This is a cross-sectional structural schematic diagram of a rotor valve according to an embodiment of the present disclosure;

[0028] Figure 2 for Figure 1 The diagram shows an enlarged view of part of the rotor valve structure.

[0029] Figure 1 and Figure 2 In the figures, the labels represent:

[0030] 1. Valve body; 1a. Inlet; 1b. Outlet; 2. Rotor; 21. Shaft; 22. Conical valve core; 30. Nut; 31. Screw; 311. Positioning section; 312. Threaded section; 32. First bearing; 33. Drive shaft; 331. Annular flange; 33A. Stepped surface; 33a. Mounting hole; 33b. Second oil hole; 332. Driven sprocket; 35. Power source; 36. Support frame; 36A. Receiving cavity; 361. Mounting part; 37. Second bearing; 302. Spacer; 302a. First oil hole; 303. Stop nut; 304. Stop sleeve; 304A. Stop surface; 4. Rotor power source; 5. Rotor bearing; 6. Bearing housing end frame; 7. Valve cover; 71. Packing seal. Detailed Implementation

[0031] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this disclosure or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0032] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of this disclosure. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0033] In the description of this disclosure, it should be understood that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this disclosure.

[0034] In the description of this disclosure, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are generally based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this disclosure; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0035] In the following description, "left" and "right" are respectively referred to as Figure 1 and Figure 2 The left and right directions.

[0036] This disclosure provides a rotor valve. The rotor valve includes a valve body 1, a rotor 2, a power source 35, and an adjusting mechanism. The valve body 1 has a conical valve cavity. The rotor 2 includes a shaft 21 and a conical valve core 22 disposed on the shaft 21. The conical valve core 22 is located within the conical valve cavity. The radially outer surface of the conical valve core 22 is configured to mate with the radially inner surface of the conical valve cavity. The adjusting mechanism is located at the axial end of the shaft 21, is drivenly connected to the shaft 21, and is configured to drive the shaft 21 to move axially, thereby driving the conical valve core 22 to move axially to adjust the gap between the conical valve core 22 and the valve body 1. The adjusting mechanism includes a screw 31 and a nut 30 threadedly engaged with the screw 31. The screw 31 is rotatably connected to the shaft 21 with its axial position unchanged, and the nut 30 is rotatably disposed with its axial position unchanged relative to the valve body 1. The power source 35 is drivenly connected to the nut 30 to drive the nut 30 to rotate.

[0037] Based on the rotor valve provided in this disclosure, by setting the screw 31 of the adjusting mechanism to be connected to the rotating shaft 21 in a way that is axially fixed and rotatable relative to it, setting the nut 30 to be connected to the valve body 1 in a way that is axially fixed and rotatable relative to it, and driving the power source 35 to be connected to the nut 30, it is beneficial to ensure that the axial position of the power source 35 and the valve body 1 remains unchanged, which helps to avoid the problem of transmission play, improves the efficiency and stability of the power source 35 transmission, and thus helps to improve the adjustment accuracy of the adjusting mechanism.

[0038] In some embodiments, the power source 35 may include an actuation mechanism such as an electric motor or a hydraulic motor. The power source 35 may also include a transmission mechanism such as a transmission belt and pulley, a transmission chain and sprocket connected between the actuation mechanism and the nut 30.

[0039] like Figure 1 As shown, in some embodiments, the end of the screw 31 near the shaft 21 is connected to the shaft 21 via two first bearings 32, which are configured to withstand radial and axial forces.

[0040] The first bearing 32 is, for example, a radial thrust bearing or a tapered roller bearing, and the two first bearings 32 are installed facing each other or back to back.

[0041] The first bearing 32 can maintain the free rotation of the screw 31 while bearing the axial load, which is conducive to achieving the connection between the screw 31 and the shaft 21 with the axial position unchanged and relative rotational during the process of the screw 31 pushing and pulling the shaft 22 in the axial direction, thereby improving the operational stability of the adjustment mechanism.

[0042] like Figure 1As shown, in some embodiments, the adjusting mechanism further includes a drive unit. A power source 35 is driven to the nut 30 via the drive unit, so as to drive the nut 30 to rotate about its axis while maintaining its axial position relative to the valve body 1. The drive unit includes a drive shaft 33. The drive shaft 33 includes a mounting hole 33a, within which the nut 30 is located. The drive shaft 33 is driven to the nut 30 and configured to drive the nut 30 to rotate about its axis, causing the end of the screw 31 furthest from the shaft 21 to reciprocate within the mounting hole 33a along the extension direction of the screw 31's axis. The power source 35 is driven to the drive shaft 33 and configured to drive the drive shaft 33 to rotate about its axis.

[0043] The drive shaft 33 facilitates the power source 35's ability to drive the nut 30 to rotate via the drive shaft 33, thereby expanding the installation positions and configurations of the power source 35 and increasing the installation flexibility of the adjustment mechanism. For example, the overall structure of the adjustment mechanism can be made more compact by rationally arranging the position of the power source 35. The power source 35 drives the drive shaft 33 to rotate, thus driving the nut 30. Both the nut 30 and the drive shaft 33 are axially fixed relative to the valve body 1, which helps prevent relative movement between the power source 35 and the drive shaft 33 along the axial direction of the rotor valve, improving the stability and efficiency of power transmission from the power source 35. Furthermore, placing the nut 30 within the mounting hole 33a of the drive shaft 33 improves the stability of the nut 30's installation and reduces radial vibration during rotation. On the other hand, this arrangement allows the axial positions of the nut 30 and the drive shaft 33 to overlap, thereby reducing the axial dimension of the adjustment mechanism.

[0044] like Figure 1 and Figure 2 As shown, in some embodiments, the rotor valve further includes a support frame 36 and two second bearings 37. The support frame 36 is fixedly disposed relative to the valve body 1. The inner wall of the support frame 36 forms a receiving cavity 36A. The second bearings 37 are configured to withstand radial and axial forces, located within the receiving cavity 36A and sleeved on the drive shaft 33. The outer ring of the second bearing 37 is supported on the inner wall of the support frame 36 to be fixed relative to the support frame 36. The inner ring of the second bearing 37 is fixed to the drive shaft 33. The drive shaft 33 is axially fixed to the support frame 36 and rotatably connected relative to it via the two second bearings 37.

[0045] The second bearing 37 is, for example, a radial thrust bearing or a tapered roller bearing, and the two second bearings 37 are installed facing each other or back to back.

[0046] The outer ring of the second bearing 37 is fixedly mounted relative to the support frame 36, and the inner ring of the second bearing 37 is fixed to the drive shaft 33. This arrangement helps to maintain the axial position of the second bearing 37 and the valve body 1, thereby ensuring the axial position of the drive shaft 33 and the valve body 1 remains constant, which in turn improves the stability of the adjustment mechanism along the axial position. The use of two second bearings 37 helps to prevent the drive shaft 33 from shifting axially due to applied axial force, thus maintaining stable rotation of the drive shaft 33 while keeping its axial position constant. Furthermore, the second bearing 37 can simultaneously withstand axial and radial forces, thereby improving the axial load-bearing capacity of the adjustment mechanism and expanding the operating range of the rotor valve.

[0047] In some embodiments, the adjusting mechanism further includes a first limiting device and a second limiting device. The first limiting device is configured to keep the axial position of the two second bearings 37 relative to the drive shaft 33 unchanged. The second limiting device is configured to keep the axial position of the nut 30 relative to the drive shaft 33 unchanged.

[0048] The first and second limiting devices enhance the adjustment stability of the adjusting mechanism. The first limiting device restricts the axial position of the two second bearings 37, reducing axial displacement and vibration caused by axial loads on the second bearings 37. The second limiting device restricts the axial position of the nut 30, reducing axial vibration caused by axial displacement of the nut 30 during adjustment. Thus, the first and second limiting devices improve the adjustment accuracy, efficiency, and service life of the adjusting mechanism.

[0049] like Figure 1 As shown, in some embodiments, the first limiting device includes an annular flange 331, a spacer 302, and at least one stop nut 303. The annular flange 331 is disposed at one axial end of the drive shaft 33. The spacer 302 is sleeved on the drive shaft 33 and located between two second bearings 37. At least one stop nut 303 is disposed at the other axial end of the drive shaft 33 and threadedly engages with the outer surface of the drive shaft 33. For example, the annular flange 331 may be disposed at a first end of the drive shaft 33 near the rotor 2, and the stop nut 303 may be mounted at a second end of the drive shaft 33 away from the rotor 2, with the second bearings 37 and the spacer 302 both located between the annular flange 331 and the stop nut 303. For example, the annular flange 331 can be located at the second end of the drive shaft 33 away from the rotor 2, while the stop nut 303 is installed at the first end of the drive shaft 33 near the rotor 2. The second bearing 37 and the spacer 302 are both located between the annular flange 331 and the stop nut 303.

[0050] An annular flange 331 is located at one axial end of the drive shaft 33, while a stop nut 303 is located at the other axial end of the drive shaft 33. This facilitates the installation of the spacer 302 and the second bearing 37 on the drive shaft 33. Specifically, the spacer 302 and the second bearing 37 can be fitted onto the drive shaft 33 from the end furthest from the annular flange 331, and are precisely positioned at the other end of the drive shaft 33 by the annular flange 331. The annular flange 331, spacer 302, and stop nut 303 facilitate the axial installation and positioning of the second bearing 37. Furthermore, the cooperation of the annular flange 331, spacer 302, and stop nut 303 on the drive shaft 33 effectively prevents axial displacement or wobble of the second bearing 37, thereby enhancing the adjustment stability of the adjustment mechanism.

[0051] like Figure 1 As shown, in some embodiments, the mounting hole 33a is configured as a stepped hole, including a stepped surface 33A perpendicular to the axis of the drive shaft 33. The second limiting device includes a stop sleeve 304. The stop sleeve 304 includes a stop surface 304A perpendicular to the axis of the drive shaft 33. The nut 30 is located between the stop surface 304A and the stepped surface 33A. The stop sleeve 304 is connected to the drive shaft 33 and configured to keep the axial position of the nut 30 relative to the drive shaft 33 constant.

[0052] The stop surface 304A of the stop sleeve 304 and the stepped surface 33A of the mounting hole 33a position the nut 30 axially, which helps to ensure the axial position of the nut 30 on the drive shaft 33 is stable and less prone to axial movement, thus improving the adjustment stability of the adjustment mechanism. In addition, this arrangement is compact and helps to reduce the space occupied by the adjustment mechanism.

[0053] In some embodiments, the adjusting mechanism further includes an oil passage. The oil passage connects the portion of the receiving cavity 36A located between the two second bearings 37 and the mounting hole 33a.

[0054] The second bearing 37 requires good lubrication during operation to reduce friction and wear and extend its service life. An oil passage is provided in the adjustment mechanism and connects the portion of the receiving cavity 36A located between the two second bearings 37 and the mounting hole 33a. This facilitates the introduction of lubricating oil into the portion between the two second bearings 37 and the mounting hole 33a, so that the threaded engagement position between the second bearing 37 and the nut 30 and screw 31 in the mounting hole 33a is adequately lubricated, thereby helping to maintain the stable operation of the adjustment mechanism.

[0055] In some embodiments, the oil passage includes a first oil hole 302a and a second oil hole 33b. The first oil hole 302a is disposed on the spacer 302, and its first end communicates with the portion of the receiving cavity 36A located between the two second bearings 37. The second oil hole 33b is disposed on the drive shaft 33, and its first end communicates with the second end of the first oil hole 302a, while its second end communicates with the mounting hole 33a.

[0056] The location of this oil circuit facilitates comprehensive lubrication of the parts of the adjustment mechanism that require lubrication. The lubricating oil flows from the receiving cavity 36A through the first oil hole 302a to the gap between the drive shaft 33 and the spacer 302, which helps the drive shaft 33 to be fully lubricated. The lubricating oil then enters the mounting hole 33a of the drive shaft 33 through the second oil hole 33b, thus forming a complete oil circuit for lubrication.

[0057] In some embodiments, the power source 35 is disposed on the support frame 36.

[0058] Mounting the power source 35 on the support frame 36 enhances the rigidity of the regulating mechanism and promotes its stable operation. Furthermore, this arrangement is compact, reducing the footprint of the rotor valve.

[0059] In some embodiments, the rotor valve further includes an anti-rotation structure (not shown) configured to limit the circumferential position of the screw 31 and the valve body 1. For example, the anti-rotation structure may include a slider and a guide rail, the slider being disposed on the screw 31 and the guide rail being disposed on the support frame 36 and extending axially along the rotor valve, the slider and the guide rail being slidably engaged axially along the rotor valve.

[0060] The anti-rotation structure facilitates the stable and rapid axial reciprocating movement of the screw 31, thereby improving the adjustment accuracy and stability of the adjustment mechanism.

[0061] Another aspect of this disclosure provides a high-temperature and high-pressure device, which includes the rotor valve provided in this disclosure.

[0062] The high-temperature and high-pressure equipment of this disclosure has the advantages of the rotor valve of this disclosure.

[0063] The following combination Figure 1 and Figure 2 The rotor valve of the present disclosure will be described in detail. For example... Figure 1As shown, the rotor valve includes a valve body 1, a rotor 2, a power source 35, and an adjusting mechanism. The valve body 1 has a conical valve cavity. The rotor 2 includes a rotating shaft 21 and a conical valve core 22 disposed on the rotating shaft 21. The conical valve core 22 is located within the conical valve cavity, and its radial outer surface is configured to mate with the radial inner surface of the conical valve cavity. During rotation, the rotor 2 may experience axial displacement due to vibration or other reasons. Therefore, the adjusting mechanism connected to the right end of the rotating shaft 21 drives the rotating shaft 21 to move axially, thereby driving the conical valve core 22 to move axially to adjust the gap between the conical valve core 22 and the valve body 1. The adjusting mechanism includes a screw 31 and a nut 30 threadedly engaged with the screw 31. The screw 31 is axially fixed and rotatably connected to the rotating shaft 21, and the nut 30 is rotatably positioned relative to the valve body 1 while maintaining its axial position. The power source 35 is driven by the nut 30 to drive its rotation.

[0064] In this embodiment, the adjustment mechanism of the rotor valve is independent of the valve cavity of the valve body 1. The nut 30 rotates with its axial position unchanged relative to the valve body 1 so as to drive the screw 31 to move only along the axial direction without rotating. This arrangement is conducive to realizing the driving connection between the power source 35 and the nut 30, thereby ensuring that the axial position of the power source 35 and the valve body 1 remains unchanged, avoiding the problem of transmission play, and thus improving the adjustment accuracy of the adjustment mechanism.

[0065] The power source 35 includes a motor and a transmission mechanism. The transmission mechanism includes a driving sprocket connected to the motor's drive shaft, a transmission chain, and a driven sprocket 332 mounted on the end of the drive shaft 33 away from the rotor 2. The transmission chain cooperates with the driving sprocket and the driven sprocket 332 to achieve a driving connection between the motor and the nut 30 of the adjusting mechanism, thereby driving the nut 30 to rotate. This arrangement helps maintain the axial relative positions of the driving and driven pairs of the transmission chain, thus avoiding the problem of large misalignment in the transmission chain during forward and reverse rotation. In embodiments not shown, the chain drive mechanism consisting of the driving sprocket, transmission chain, and driven sprocket 332 can be replaced with a belt drive mechanism.

[0066] The valve body 1 also includes an inlet 1a and an outlet 1b, which are connected to the valve cavity to deliver materials.

[0067] The rotor valve also includes: a rotor power source 4, a rotor bearing 5, a bearing housing end bracket 6, and a valve cover 7. The rotor power source 4 is located at the left end of the rotating shaft 21 of the rotor 2 and is drivenly connected to the rotating shaft 21 to drive the rotor 2 to rotate, thereby causing the conical valve core 22 of the rotor to rotate to carry the material from the feed port 1a of the rotor valve to the discharge port 1b.

[0068] The valve cover 7 is located on both axial sides of the valve body 1 to seal the valve cavity axially, preventing material leakage from the axial opening of the valve cavity during material conveying. The bearing housing end bracket 6 is located on the side of the valve cover 7 away from the valve cavity and is configured to mount the rotor bearing 5 on the shaft 21. A packing seal 71 is provided between the valve cover 7 and the shaft 21 to facilitate sealing of the valve cavity.

[0069] The screw 31 includes a screw body, and a positioning section 311 and a threaded section 312 disposed on the screw body. The positioning section 311 is located at the first end of the screw 31 near the rotating shaft 21. The radial dimension of the axially perpendicular section of the positioning section 311 is larger than the radial dimension of the axially perpendicular section of the screw body. The left and right end faces of the positioning section 311 along the axial direction are positioning surfaces, and the two positioning surfaces are correspondingly disposed with the two first bearings 32 of the adjusting mechanism, configured to position the corresponding first bearings 32 axially. The screw 31 and the rotating shaft 21 are rotatably connected relative to each other through the two first bearings 32, and the axial position of the screw 31 and the rotating shaft 21 remains unchanged.

[0070] During the rotation of the shaft 21 driven by the rotor power source 4, the shaft 21 and the screw 31 rotate relative to each other through two first bearings 32. During the adjustment process of the adjustment mechanism, the screw 31 pushes and pulls the shaft 21 to drive it to move axially, and the two first bearings 32 bear radial and axial loads. Therefore, the two first bearings 32 help to prevent the drive shaft 33 from rotating independently of the rotor power source 4, while the shaft 21 can move axially under the drive of the adjustment mechanism, thus improving the accuracy and stability of the adjustment mechanism.

[0071] The threaded section 312 is located at the second end of the screw 31 furthest from the shaft 21. The threaded section 312 is threadedly engaged with the nut 30, which is configured to rotate to drive the screw 31 to reciprocate axially, thereby driving the rotor 2 to reciprocate axially. Both the threaded section 312 and the nut 30 have trapezoidal threads, which helps to improve drive stability.

[0072] The adjusting mechanism also includes a drive unit, a first limiting device, and a second limiting device. The drive unit includes a drive shaft 33. The rotor valve includes two second bearings 37 and a support frame 36. The drive shaft 33 is configured to be driven to the nut 30 via a key connection to transmit torque to the nut 30. Driven by the drive shaft 33, the nut 30 rotates about its axis relative to the axial position of the valve body 1 without changing, thereby driving the threaded section 312 of the screw 31 to reciprocate axially. The support frame 36 is fixedly connected to the bearing seat end frame 6 located on the right side of the valve body 1, so as to be fixedly arranged relative to the valve body 1. The support frame 36 includes a large-diameter section near the bearing seat end frame 6 and a small-diameter section connected to the large-diameter section, the inner wall of the small-diameter section forming a receiving cavity 36A.

[0073] Two second bearings 37 are located within the receiving cavity 36A and sleeved on the drive shaft 33, arranged face-to-face. This arrangement allows the two second bearings 37 to withstand loads in both axial directions during the reciprocating movement of the screw 31 of the adjusting mechanism within the mounting hole 33a. The outer rings of the second bearings 37 are supported on the inner wall of the support frame 36 for relative fixation. The drive shaft 33 is axially fixed to the support frame 36 and rotatably connected relative to it via the two second bearings 37.

[0074] The support frame 36 includes a mounting portion extending axially to the outer side of the small diameter section and located radially outward of the small diameter section. The motor of the power source 35 is fixedly connected to the mounting portion. The driven sprocket 332 of the transmission mechanism of the power source 35 is fixedly connected to the right end of the drive shaft 33. The driving sprocket of the transmission mechanism is connected to the drive shaft of the motor. The transmission chain cooperates with the driving sprocket and the driven sprocket 332 to realize that the motor drives the driven sprocket 332 to rotate, thereby driving the drive shaft 33 to rotate.

[0075] The drive shaft 33 includes a mounting hole 33a, within which a nut 30 is located. The mounting hole 33a is configured as a stepped hole, including a stepped surface 33A perpendicular to the axis of the drive shaft 33. The right end of the nut 30 is axially positioned via the stepped surface 33A. The drive shaft 33 drives the nut 30 to rotate, causing the threaded section 311 of the screw 31 to reciprocate axially within the mounting hole 33a.

[0076] The first limiting device is configured to maintain the axial position of the two second bearings 37 relative to the drive shaft 33. The first limiting device includes an annular flange 331, a spacer 302, and two stop nuts 303. The annular flange 331 is located at the left end of the drive shaft 33, and one of the two second bearings 37 is axially positioned and installed through the right end face of the annular flange 331. The spacer 302 is sleeved on the drive shaft 33 and located between the two second bearings 37 to provide axial positioning for the two second bearings 37. The two stop nuts 303 are located at the right end of the drive shaft 33 and are threadedly connected to the drive shaft 33 for fixed installation. The two stop nuts 303 increase the tightening force, thereby preventing the stop nuts 303 from loosening. Even if one stop nut 303 loosens, the other stop nut 303 still provides tightening force, thus reducing the risk of failure of the connecting structures on the drive shaft 33.

[0077] The second limiting device includes a stop sleeve 304 installed at the left end of the drive shaft 33. The stop sleeve 304 includes a stop surface 304A perpendicular to the axis of the drive shaft 33. The nut 30 is located between the stop surface 304A and the stepped surface 33A, thereby keeping the axial position of the nut 30 relative to the drive shaft 33 unchanged.

[0078] like Figure 2 As shown, the adjusting mechanism also includes an oil passage. The oil passage connects the portion of the receiving cavity 36A located between the two second bearings 37 and the mounting hole 33a. The oil passage includes a first oil hole 302a and a second oil hole 33b. The first oil hole 302a is disposed on the spacer 302 and extends radially. The first end of the first oil hole 302a communicates with the portion of the receiving cavity 36A located between the two second bearings 37. The second oil hole 33b is disposed on the drive shaft 33 and extends radially along the drive shaft 33. The first end of the second oil hole 33b communicates with the second end of the first oil hole 302a. The second end of the second oil hole 33b communicates with the mounting hole 33a. The oil passage connecting the portion between the two second bearings 37 and the mounting hole 33a facilitates lubrication of all lubrication-required components, including the second bearings 37, drive shaft 33, nut 30, and screw 31, in a single operation. This reduces friction and wear between the relatively moving contact surfaces, thereby improving the adjusting stability of the adjusting mechanism.

[0079] In summary, the rotor valve of this embodiment uses a rotating nut 30 in the adjusting mechanism to drive the screw 31 to move axially. The power source 35 is connected to the nut 30 to provide torque. Since the nut 30 is a rotating component and its relative position to the valve body 1 is fixed axially, it is advantageous to also fix the relative position of the power source 35 to the valve body 1 axially. This helps reduce the axial distance between the driving and driven pairs of the power source 35's transmission chain, thus avoiding transmission misalignment and improving the efficiency and stability of the power source 35's drive, thereby improving the adjusting accuracy of the adjusting mechanism. The power source 35 is fixedly mounted on the support frame 36, which helps reduce the vibration of the power source 35 relative to the valve body 1, further improving the adjusting stability of the adjusting mechanism.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and not to limit them; although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this disclosure or equivalent substitutions can be made to some technical features, all of which should be covered within the scope of the technical solutions claimed in this disclosure.

Claims

1. A rotor valve, characterized in that, include: The valve body (1) has a conical valve cavity; The rotor (2) includes a shaft (21) and a conical valve core (22) disposed on the shaft (21). The conical valve core (22) is located in the conical valve cavity, and the radial outer surface of the conical valve core (22) is configured to match the radial inner surface shape of the conical valve cavity. An adjusting mechanism, located at the axial end of the rotating shaft (21) and drivenly connected to the rotating shaft (21), is configured to drive the rotating shaft (21) to move axially, thereby driving the conical valve core (22) to move axially to adjust the gap between the conical valve core (22) and the valve body (1). The adjusting mechanism includes a screw (31) and a nut (30) threadedly engaged with the screw (31). The screw (31) is axially fixed and rotatably connected to the rotating shaft (21), and the nut (30) is axially fixed and rotatably disposed relative to the valve body (1). A power source (35) is driven to the nut (30) to drive the nut (30) to rotate.

2. The rotor valve according to claim 1, characterized in that, The end of the screw (31) near the shaft (21) is connected to the shaft (21) via two first bearings (32), which are configured to withstand radial and axial forces.

3. The rotor valve according to claim 1, characterized in that, The adjustment mechanism further includes a drive unit, and the power source (35) is driven to the nut (30) through the drive unit so as to drive the nut (30) to rotate about the axis of the nut (30) with the axial position of the nut (30) remaining unchanged relative to the valve body (1). The drive unit includes a drive shaft (33), and the drive shaft (33) includes a mounting hole (33a). The nut (30) is located in the mounting hole (33a). The drive shaft (33) is driven to the nut (30) and is configured to drive the nut (30) to rotate about the axis of the nut (30) so that the end of the screw (31) away from the shaft (21) reciprocates in the mounting hole (33a) along the extension direction of the axis of the screw (31). The power source (35) is driven to connect with the drive shaft (33) and is configured to drive the drive shaft (33) to rotate about the axis of the drive shaft (33).

4. The rotor valve according to claim 3, characterized in that, The rotor valve also includes: The support frame (36) is fixedly disposed relative to the valve body (1), and the inner wall of the support frame (36) forms a receiving cavity (36A). Two second bearings (37), configured to withstand radial and axial forces, are located within the receiving cavity (36A) and sleeved on the drive shaft (33). The outer ring of the second bearing (37) is supported on the inner wall of the support frame (36) to be fixed relative to the support frame (36). The inner ring of the second bearing (37) is fixed to the drive shaft (33). The drive shaft (33) is axially connected to the support frame (36) through the two second bearings (37) and is rotatable relative to it.

5. The rotor valve according to claim 4, characterized in that, The adjustment mechanism further includes: A first limiting device is configured to keep the axial position of the two second bearings (37) relative to the drive shaft (33) unchanged; and / or A second limiting device is configured to keep the axial position of the nut (30) relative to the drive shaft (33) unchanged.

6. The rotor valve according to claim 5, characterized in that, The first limiting device includes: An annular flange (331) is disposed at one end of the drive shaft (33) along the axial direction; Spacer (302), fitted onto the drive shaft (33) and located between the two second bearings (37); and At least one stop nut (303) is disposed on the other end of the drive shaft (33) along the axial direction and is threaded to the outer surface of the drive shaft (33).

7. The rotor valve according to claim 5, characterized in that, The mounting hole (33a) is configured as a stepped hole, including a stepped surface (33A) perpendicular to the axis of the drive shaft (33). The second limiting device includes a stop sleeve (304), the stop sleeve (304) including a stop surface (304A) perpendicular to the axis of the drive shaft (33), the nut (30) being located between the stop surface (304A) and the stepped surface (33A), the stop sleeve (304) being connected to the drive shaft (33) and configured to keep the axial position of the nut (30) relative to the drive shaft (33) unchanged.

8. The rotor valve according to claim 4, characterized in that, The adjustment mechanism also includes an oil passage that connects the portion of the receiving cavity (36A) located between the two second bearings (37) and the mounting hole (33a).

9. The rotor valve according to claim 8, characterized in that, The adjusting mechanism further includes a first limiting device configured to keep the axial position of the two second bearings (37) relative to the drive shaft (33) unchanged. The first limiting device includes a spacer (302) sleeved on the drive shaft (33) and located between the two second bearings (37). The oil passage includes: A first oil hole (302a) is provided on the spacer (302), and the first end of the first oil hole (302a) communicates with the portion of the receiving cavity (36A) located between the two second bearings (37); and The second oil hole (33b) is provided on the drive shaft (33). The first end of the second oil hole (33b) is connected to the second end of the first oil hole (302a), and the second end of the second oil hole (33b) is connected to the mounting hole (33a).

10. The rotor valve according to claim 4, characterized in that, The power source (35) is mounted on the support frame (36).

11. The rotor valve according to any one of claims 1 to 10, characterized in that, It also includes an anti-rotation structure configured to limit the circumferential position of the screw (31) and the valve body (1).

12. A high-temperature and high-pressure device, characterized in that, It includes at least one rotor valve according to any one of claims 1 to 11, the rotor valve being disposed at the inlet end and / or outlet end of the high temperature and high pressure equipment.

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