Flow regulation device

Abstract

The invention provides a flow regulating device, relates to the field of hydraulic equipment, and aims to optimize the structure of a throttle valve to a certain extent and realize stepless regulation of a throttle state. The invention provides a flow adjusting device. The flow adjusting device comprises a base body assembly, blades, an adjusting component and a driving assembly. An overflowing hole is formed in the base body assembly, a positioning part is formed along the inner wall of the overflowing hole, a plurality of guide grooves are formed in the circumferential direction of the positioning part, and the guide grooves extend in the radial direction; the number of the blades corresponds to that of the guide grooves, the blades are arc-shaped, a first column body is formed on a first surface of one end of each blade, a second column body is formed on a second surface of one end of each blade, the adjusting component is rotationally connected with the base body assembly, positioning holes corresponding to the guide grooves are formed in the circumferential direction of the adjusting component, and the first column bodies are inserted into the guide grooves; the second column body is inserted into the positioning hole; the driving assembly is connected with the adjusting component so as to drive the adjusting component to rotate relative to the base body assembly.

Description

Technical Field

[0001] The present application relates to the technical field of hydraulic equipment, and in particular to a flow regulating device. Background Art

[0002] With the continuous advancement of agricultural modernization, the intelligentization and efficiency of agricultural machinery have become a key trend in the industry's development. In the hydraulic systems of agricultural machinery, precise control is crucial for achieving efficient operation. Hydraulic systems drive actuators by controlling the flow, pressure, and direction of the oil, thereby completing various complex agricultural operations. As a speed control component of the hydraulic system, the throttling device offers greater system stability and cost advantages over volumetric speed control. Its primary function is to control the speed of the actuator by adjusting the oil flow area, playing a decisive role in the precision and stability of agricultural machinery operations.

[0003] Currently, common throttling devices in agricultural machinery hydraulic systems primarily take the form of fixed throttle valves or manual control valves. Fixed throttle valves offer a simple structure and low cost, but their non-adjustable throttling area cannot meet the varying demands for actuator speed in different operating scenarios. While manual control valves can adjust flow to a certain degree, they require frequent manual adjustments during actual operation. Furthermore, without any reference during adjustments, this not only increases operational complexity but also makes precise flow control difficult.

[0004] Therefore, there is an urgent need to provide a flow regulating device to solve the problems existing in the prior art. Summary of the Invention

[0005] The purpose of the embodiments of the present application is to provide a flow regulating device to optimize the throttle valve structure to a certain extent, realize stepless regulation of the throttling state, and improve the accuracy of throttling regulation.

[0006] The flow regulating device provided in the present application includes a base assembly, blades, a regulating member and a drive assembly; the base assembly is formed with an overflow hole, an annular positioning portion is formed along the inner wall of the overflow hole, a plurality of guide grooves are formed along the circumference of the positioning portion, and the plurality of guide grooves all extend radially; the number of the blades corresponds to the guide grooves, and the blades are arc-shaped, a first cylinder is formed on the first surface of one end of the blade, and a second cylinder is formed on the second surface, the regulating member is rotatably connected to the base assembly, and a positioning hole corresponding to the guide groove is formed along the circumference of the regulating member, the first cylinder is inserted into the guide groove, and the second cylinder is inserted into the positioning hole; the drive assembly is connected to the regulating member to drive the regulating member to rotate relative to the base assembly.

[0007] In which, the base assembly includes a base, a first cover and a second cover; the first cover and the second cover are relatively arranged on both sides of the base, and the first cover and the second cover are both formed with a through hole, the center of the through hole and the center of the flow hole are located in the same straight line, and the diameter of the through hole is smaller than the diameter of the flow hole, and is adapted to the inner ring diameter of the positioning portion.

[0008] Specifically, a sliding groove is formed on the inner wall of the flow hole, and the sliding groove is circular. The adjusting member is arranged in the sliding groove; the base is formed with a accommodating hole connected to the sliding groove, and part of the adjusting member can enter the accommodating hole, and the adjusting member entering the accommodating hole is formed with a first engaging portion, and the driving assembly includes a driving member and a mating member, one end of the driving member is connected to one end of the mating member, and the other end of the mating member is inserted into the accommodating hole, and a second meshing portion is formed corresponding to the position of the first meshing portion, and the first meshing portion and the second meshing portion are meshed with each other.

[0009] Furthermore, the driving member is a handwheel, the mating member is a worm, the handwheel is detachably connected to one end of the worm, the other end of the worm is inserted into the accommodating hole, and can rotate relative to the base; the first engaging portion is a worm tooth, and the worm tooth covers a portion of the side wall of the adjusting member along the circumference of the adjusting member.

[0010] Furthermore, the driving component is a driving motor or a hydraulic motor, and the driving motor is detachably connected to one end of the worm or the hydraulic motor is detachably connected to one end of the worm.

[0011] Furthermore, the drive assembly also includes a positioning member, a sealing plug, a first bearing, a bearing retaining ring and a first sealing member; the accommodating hole passes through the base along a first direction, the first sealing member is located in the accommodating hole, and is sleeved on one end of the worm gear close to the handwheel, the inner ring of the first bearing is sleeved on the other end of the worm gear, and the outer ring is fixedly connected to the inner wall of the accommodating hole, the bearing retaining ring stops the first bearing, the sealing plug seals the accommodating hole, and the positioning member locks the sealing plug.

[0012] Wherein, the base assembly further includes a locking member, a locking hole is formed on the base, the locking member is threadedly engaged with the locking hole, and one end of the locking member passes through the locking hole to abut or separate from the side wall of the adjusting member.

[0013] Specifically, the adjusting member is formed with a pointer portion, and the base is formed with a slideway. The pointer portion is arranged through the slideway, and the pointer portion can slide in the slideway to drive the adjusting member to rotate relative to the base.

[0014] Furthermore, the flow regulating device provided in the present application also includes a second bearing and a second seal, and a receiving groove is formed on the side of the regulating component facing away from the blade, and the second bearing is embedded in the receiving groove; the second seal is arranged between the second cover and the base, and the second seal forms a sealing protrusion, and the sealing protrusion is tightly fitted with the inner ring of the second bearing.

[0015] Furthermore, the flow regulating device provided by the present invention also includes a connecting component, and a plurality of connecting holes are formed on the first cover, the second cover, the second seal, and the base. The connecting component is arranged through the connecting holes to press the first cover and the second cover on both sides of the base.

[0016] Compared with the existing technology, the flow control device provided by this application has the following advantages:

[0017] The flow regulating device provided in the present application includes a base assembly, blades, a regulating member and a drive assembly; the base assembly is formed with a flow hole, an annular positioning portion is formed along the inner wall of the flow hole, a plurality of guide grooves are formed along the circumference of the positioning portion, and the plurality of guide grooves all extend radially; the number of blades corresponds to the guide grooves, and the blades are arc-shaped, a first column is formed on the first surface of one end of the blade, and a second column is formed on the second surface, the regulating member is rotatably connected to the base assembly, and a positioning hole corresponding to the guide groove is formed along the circumference of the regulating member, the first column is inserted into the guide groove, and the second column is inserted into the positioning hole; the drive assembly is connected to the regulating member to drive the regulating member to rotate relative to the base assembly.

[0018] From this analysis, it can be seen that the base assembly can provide installation space and positioning basis for the installation of blades, adjustment components and drive components. It can be understood that since the hydraulic oil needs to flow through the flow regulating device provided by this application to achieve flow adjustment, this application can achieve the passage of hydraulic oil by forming a flow hole through the base assembly, and through the positioning portion formed in the flow hole, it can achieve the positioning of multiple arc-shaped blades. Of course, the positioning portion in this application is annular to ensure the smooth passage of hydraulic oil.

[0019] By forming a plurality of radially extending guide grooves on the positioning portion and simultaneously forming a positioning hole in the adjustment member, a first column formed on the first surface of one end of the blade and a second column formed on the second surface can be accommodated. Since the first column and the second column are formed at the same end of the blade in this application, the other end of the blade is a free end. Since the adjustment member in this application is rotatably connected to the base assembly, when the adjustment member is rotated, the combined action of the positioning hole and the guide groove on the second column and the first column can cause the free end of the blade to move, and the blade to rotate.

[0020] Since the number of blades in the present application corresponds to the number of guide grooves, the present application also includes multiple blades, and the multiple blades can be stacked in sequence along the circumference of the positioning portion. Accordingly, when the adjustment member is rotated, the multiple blades rotate simultaneously, thereby forming a gradually converging or gradually expanding action mode.

[0021] When the multiple blades gradually converge, the flow area of ​​the flow hole can be reduced, thereby reducing the flow of hydraulic oil. When the multiple blades gradually open, the flow hole can gradually return to its initial flow area. Because the multiple blades provided in this application gradually converge during the adjustment process, the flow area can gradually decrease or gradually return to its initial state, thus achieving five-level adjustment and making the adjustment process more precise.

[0022] Furthermore, since the present application further provides a driving assembly, and the driving assembly can be connected to the adjusting member, the adjusting member can be automatically driven, thereby reducing manual intervention and improving adjustment accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 A schematic diagram of the overall structure of the flow regulating device provided in an embodiment of the present application;

[0025] Figure 2 An exploded view of a flow regulating device provided in an embodiment of the present application;

[0026] Figure 3 A schematic diagram of the structure of the flow control device provided in an embodiment of the present application in a maximum throttling state;

[0027] Figure 4A schematic diagram of the structure of the flow control device provided in an embodiment of the present application in a minimum throttling state;

[0028] Figure 5 Schematic diagram of the flow regulating device provided in an embodiment of the present application being involved in a hydraulic system.

[0029] Icons: 1-base; 101-positioning part; 1011-guide groove; 102-accommodating hole; 103-sliding groove; 104-locking hole; 105-slideway; 1051-scale; 106-locking member; 2-first cover; 3-second cover; 4-adjusting member; 401-pointer part; 4011-pointer; 402-accommodating groove; 403-first engaging part; 404-positioning hole; 5-blade; 501-first column; 50 2-second cylinder; 6-handwheel; 601-fastening screw; 7-worm; 701-second meshing part; 702-first sealing member; 703-positioning member; 704-sealing plug; 705-first bearing; 706-bearing retaining ring; 8-second bearing; 9-second sealing member; 901-sealing protrusion; 10-third sealing member; 11-long bolt; 12-gasket; 13-locking nut; 14-flow regulating device; 15-control valve. DETAILED DESCRIPTION

[0030] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0031] In the description of this application, it should be noted that the terms "inner" and "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the product of this application is typically placed when in use. These terms are intended solely to facilitate the description of this application and simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" and the like are used solely for distinction and should not be construed as indicating or implying relative importance.

[0032] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0033] As Figures 1-5 shown, the flow regulating device provided by the application comprises a base assembly, a vane 5, a regulating member 4 and a driving assembly; the base assembly is formed with a flow hole, a positioning portion 101 in the shape of a ring is formed along the inner wall of the flow hole, a plurality of guide grooves 1011 are formed along the circumference of the positioning portion 101, and the plurality of guide grooves 1011 all extend along the radial direction; the number of the vanes 5 corresponds to the number of the guide grooves 1011, and the vanes 5 are in the shape of an arc, the first face of one end of the vane 5 is formed with a first cylinder 501, the second face is formed with a second cylinder 502, the regulating member 4 is rotationally connected with the base assembly, and a positioning hole 404 corresponding to the guide groove 1011 is formed along the circumference of the regulating member 4, the first cylinder 501 is arranged by being inserted into the guide groove 1011, and the second cylinder 502 is arranged by being inserted into the positioning hole 404; the driving assembly is connected with the regulating member 4 to drive the regulating member 4 to rotate relative to the base assembly.

[0034] Compared with the prior art, the flow regulating device provided by the application has the following advantages:

[0035] The flow regulating device provided by the application can provide installation space and positioning basis for the installation of the vane 5, the regulating member 4 and the driving assembly by the base assembly. It can be understood that, since the hydraulic oil needs to flow through the flow regulating device provided by the application to realize the adjustment of the flow, the base assembly 1 is formed with a flow hole to enable the hydraulic oil to pass through, and the positioning portion 101 formed in the flow hole can realize the positioning of the plurality of vanes 5 in the shape of an arc. Of course, the positioning portion 101 in the application is in the shape of a ring to ensure the smooth passing of the hydraulic oil.

[0036] A plurality of guide grooves 1011 extending along the radial direction are formed on the positioning portion 101, and the regulating member 4 is formed with a positioning hole 404 to accommodate the first cylinder 501 formed on the first face of one end of the vane 5 and the second cylinder 502 formed on the second face. Since the first cylinder 501 and the second cylinder 502 are formed on the same end of the vane 5 in the application, the other end of the vane 5 is a free end. Since the regulating member 4 is rotationally connected with the base assembly in the application, when the regulating member 4 is rotated, the free end of the vane 5 can be moved under the joint action of the positioning hole 404 and the guide groove 1011 on the second cylinder 502 and the first cylinder 501, and the vane 5 will be rotated at the same time.

[0037] Since the number of the vanes 5 corresponds to the number of the guide grooves 1011 in the application, the number of the vanes 5 in the application is also a plurality, and the plurality of vanes 5 can be arranged in sequence along the circumference of the positioning portion 101. Accordingly, when the regulating member 4 is rotated, the plurality of vanes 5 will be rotated at the same time, thereby forming a gradually gathering or gradually opening action mode.

[0038] When the plurality of vanes 5 gradually close, the flow area of the flow hole can be reduced, so as to realize the reduction of the hydraulic oil flow, and when the plurality of vanes 5 gradually open, the flow area of the flow hole can gradually recover to the initial state. Since the plurality of vanes 5 provided by the application gradually close during adjustment, the flow area can gradually reduce or gradually recover to the initial state, thereby realizing five-stage adjustment and making the adjustment process more accurate.

[0039] In addition, since the driving assembly is further provided and can be connected with the adjusting member 4, automatic driving of the adjusting member 4 can be realized, manual participation is reduced, and the adjustment accuracy is improved.

[0040] It should be noted here that the cooperation between the driving assembly and the adjusting member 4 in the application can adopt the following forms, such as the transmission form of the motor driving gear or rack, the transmission form of the motor driving sprocket chain, or the transmission form of the motor driving transmission belt. Considering the sealing effect, the transmission forms of the sprocket chain and the transmission belt require relatively complex sealing structures and methods, so the mode of the motor driving the rack to realize the rotation of the adjusting member 4 is described here.

[0041] In this way, the motor is arranged outside the base assembly, and can be further connected with a lead screw structure, that is, the motor drives the rotation of the lead screw, the lead screw nut is connected on the lead screw, and the rack is connected with the lead screw nut, so that the rack can move in a straight line through the motor. Of course, in this structure, the outer wall surface of the adjusting member 4 needs to form the meshing teeth, and the corresponding position of the meshing teeth on the base assembly forms an opening. Since the meshing teeth are formed on the side wall surface of the adjusting member 4, the sealing effect of the whole device will not be affected, and the meshing teeth pass through the opening and are engaged with the rack. When the motor starts to drive the rack to reciprocate in a straight line, the meshing teeth can be used to drive the rotation of the adjusting member 4. The rotation of the adjusting member 4 can synchronously drive the rotation of the vane 5, thereby realizing the gradual closing or gradual opening of the plurality of vanes 5.

[0042] It needs to be further explained here that, since the first column 501 and the second column 502 in the present application are formed at one end of the blade 5 and protrude from the surface of the blade 5, and multiple blades 5 need to be stacked one by one, the present application can accommodate the first column 501 through the guide groove 1011 formed on the positioning portion 101, and accordingly, the second column 502 can be accommodated through the positioning hole 404 formed in the adjusting member 4. Therefore, after assembly, the first surface of the blade 5 can be fitted with the positioning portion 101, and the second surface can be fitted with the adjusting member 4, thereby avoiding to a certain extent the problem of hydraulic oil leakage from the gap formed between the blade 5 and the adjusting member 4 and the positioning portion 101. At the same time, since the first column 501 and the second column 502 are located at the same end of the blade 5, the degree of fit between the multiple blades 5 can also be guaranteed, so as to reduce the gap in the internal structure to a certain extent and ensure the sealing effect.

[0043] Alternatively, as Figures 1-4 As shown, the adjusting member 4 in the present application is formed with a pointer portion 401 , and the base 1 is formed with a slide 105 . The pointer portion 401 is arranged through the slide 105 , and the pointer portion 401 can slide in the slide 105 , driving the adjusting member 4 to rotate relative to the base 1 .

[0044] Based on the above structure, the present application further optimizes the structural form of the adjusting member 4 so that the adjusting member 4 is formed with a pointer portion 401. At the same time, a slide 105 is formed at the position of the base 1 corresponding to the pointer portion 401, so that the pointer portion 401 can pass through the slide 105 and be exposed to the outside of the base 1. Through the pointer portion 401, when the adjusting member 4 rotates, it can drive the pointer portion 401 to rotate in the slide 105, so that the real-time position of the adjusting member 4 can be fed back to the operator, thereby ensuring the accuracy of the adjustment to a certain extent.

[0045] It should be noted that in this application, a scale 1051 is formed on the base 1 at a position corresponding to the slide 105, and a pointer 4011 pattern is formed on the pointer portion 401. The pointer 4011 and the scale 1051 can be used to accurately determine the rotation angle of the adjustment member 4, thereby achieving precise adjustment of the convergence state of the blades 5. When the drive assembly drives the adjustment member 4 to rotate, the pointer portion 401 moves synchronously, thereby also providing real-time feedback on the rotation angle of the adjustment member 4 through the pointer 4011 and the scale 1051, thereby ensuring adjustment accuracy.

[0046] It is understandable that since the device provided in this application needs to be assembled to Figure 5In the hydraulic system shown, the pressure of the hydraulic system is different under different working conditions. When the pressure is low, the adjustment component 4 can be controlled manually, but when the pressure is too high, stronger sealing is required, so the fit between the various parts is tighter.

[0047] Therefore, the present application further optimizes the structure of the drive assembly. Specifically, Figure 2 As shown, the inner wall of the flow hole in the present application is formed with a sliding groove 103, the sliding groove 103 is circular, and the adjusting member 4 is arranged in the sliding groove 103; the base 1 is formed with a accommodating hole 102 connected to the sliding groove 103, and part of the adjusting member 4 can enter the accommodating hole 102, and the adjusting member 4 entering the accommodating hole 102 is formed with a first engaging portion 403, the driving assembly includes a driving member and a mating member, one end of the driving member is connected to one end of the mating member, and the other end of the mating member is inserted into the accommodating hole 102, and a second meshing portion 701 is formed at the position corresponding to the first meshing portion 403, and the first meshing portion 403 and the second meshing portion 701 are meshed.

[0048] The present application can accommodate a mating component through the accommodating hole 102 formed on the base 1, and the mating component in the present application can adopt the above-mentioned rack structure, and realize the driving of the adjustment component 4 through reciprocating motion in the accommodating hole 102. Therefore, the driving component in the present application can also adopt a motor and a screw rod structure to realize the movement of the rack in the accommodating hole 102.

[0049] However, since the accommodating hole 102 is connected to the sliding groove 103 in this application, and the driving component is located outside the base 1, the use of the reciprocating motion of the rack also poses a great challenge to the sealing. Therefore, the mating component in this application adopts the worm 7. Since a second meshing portion 701 is formed on the worm 7, the first meshing portion 403 formed by the adjusting component 4 in this application is a worm gear structure, and the driving of the adjusting component 4 is achieved through the cooperation of the worm gear 7.

[0050] In some embodiments, the driving component in the present application can be a handwheel 6, which can first be used to drive the worm 7. When the worm 7 can be driven to rotate, the driving of the adjusting component 4 can be completed, thereby realizing the movement of the blade 5.

[0051] When the adjusting member 4 still cannot be driven by the handwheel 6, since the handwheel 6 and the worm 7 in this application are detachably connected, the handwheel 6 can be removed and the motor drive can be replaced. That is, preferably, the driving member in this application is a driving motor or a hydraulic motor, and the driving motor is detachably connected to one end of the worm 7 or the hydraulic motor is detachably connected to one end of the worm 7.

[0052] In the present application, the hand wheel 6 is detachably connected to the worm 7 by a fastening screw 601 .

[0053] It is understandable that, since the hydraulic motor can provide greater torque, when the pressure in the hydraulic system is high, the hydraulic motor can be used for driving, and when the hand wheel 6 cannot be used for driving, the drive motor can be used to drive the worm 7 first.

[0054] It should be noted here that the position locking between the worm 7 and the adjusting member 4 can be achieved through the cooperation of the first meshing portion 403 and the second meshing portion 701. Since the hydraulic motor also has a self-locking function, under working conditions with higher pressure, the use of a hydraulic motor can further ensure that the position of the adjusting member 4 is stable after rotation.

[0055] It should be further explained here that the present application has three levels of self-locking. When the handwheel 6 is installed, the self-locking function is achieved by the self-locking and screws between the first meshing part 403 of the worm gear structure and the worm 7. When the motor is installed, the self-locking is achieved by the power-off brake of the motor itself. When a hydraulic motor is used, the mid-position O-type function of the hydraulic motor reversing valve can achieve self-locking on the basis of the self-locking of the first meshing part and the worm 7, thereby ensuring the stability of the overall device.

[0056] Preferably, the drive assembly in this application also includes a positioning member 703, a sealing plug 704, a first bearing 705, a bearing retaining ring 706 and a first sealing member 702; the accommodating hole 102 passes through the base 1 along the first direction, the first sealing member 702 is located in the accommodating hole 102, and is sleeved on one end of the worm 7 close to the handwheel 6, the inner ring of the first bearing 705 is sleeved on the other end of the worm 7, and the outer ring is fixedly connected to the inner wall of the accommodating hole 102, the bearing retaining ring 706 stops the first bearing 705, the sealing plug 704 seals the accommodating hole 102, and the positioning member 703 locks the sealing plug 704.

[0057] Since the worm 7 needs to rotate relative to the base 1, the rotation of the worm 7 can be achieved by setting a first bearing 705, and the sealing plug 704 and the first sealing member 702 that are further set can achieve sealing between the worm 7 and the base 1. In addition, the sliding groove 103 can be opened or closed by disassembling and assembling the sealing plug 704, so that lubricating oil can be added to the position of the worm 7 and the first meshing part 403 to ensure smooth meshing rotation process.

[0058] Alternatively, as Figures 1-4As shown, the base assembly in the present application includes a base 1, a first cover 2 and a second cover 3; the first cover 2 and the second cover 3 are relatively arranged on both sides of the base 1, and the first cover 2 and the second cover 3 are both formed with a through hole, the center of the through hole and the center of the flow hole are located in the same straight line, and the diameter of the through hole is smaller than the diameter of the flow hole, and is adapted to the inner ring diameter of the positioning portion 101.

[0059] The first cover 2 and the second cover 3 in the present application can be made of stainless steel, and a pipeline connection interface or a flange can be further provided on the side of the first cover 2 and the second cover 3 facing away from the base 1, so as to achieve the purpose of quickly connecting the flow regulating device provided in the present application to the hydraulic system.

[0060] The pipeline connection interface in this application can be a threaded pipe sleeve, which can be quickly connected to the hydraulic pipeline through threaded cooperation, and the flange can integrate the oil pipe. Through the connection between the flange and the first cover 2 and the second cover 3, the pipeline can be smoothly connected and the oil circuit can be unobstructed.

[0061] Alternatively, as Figures 1-4 As shown, the base assembly in the present application also includes a locking member 106, a locking hole 104 is formed on the base 1, the locking member 106 is threadedly engaged with the locking hole 104, and one end of the locking member 106 passes through the locking hole 104 to abut or separate from the side wall of the adjusting member 4.

[0062] The present application further opens a locking hole 104 on the base 1 and correspondingly sets a locking member 106, so that the adjusting member 4 can be locked by the locking member 106. The locking member 106 in the present application adopts a screw, and a screwing portion is provided at one end outside the base 1. The screwing portion can conveniently tighten or loosen the locking member 106, and by rotating the locking member 106, the end away from the screwing portion can be abutted against the outer wall of the adjusting member 4, thereby forming a top screw structure to achieve locking of the adjusting member 4.

[0063] Preferably, there are two locking holes 104 in the present application, and they are relatively arranged at the two ends of the slide 105. Accordingly, the number of locking members 106 corresponds to the locking holes 104. By setting two locking members 106, uniform force can be applied to lock the adjustment member 4, thereby ensuring the stability of the locking.

[0064] Alternatively, as Figures 1-4 As shown, the flow regulating device provided in the present application further includes a second bearing 8 and a second seal 9. A receiving groove 402 is formed on the side of the regulating member 4 facing away from the blade 5, and the second bearing 8 is embedded in the receiving groove 402; the second seal 9 is arranged between the second cover 3 and the base 1, and the second seal 9 is formed with a sealing protrusion 901, which is tightly fitted with the inner ring of the second bearing 8.

[0065] In order to realize the rotation of the adjusting member 4 relative to the base 1, the present application sets a second bearing 8. At the same time, a receiving groove 402 is formed on the side of the adjusting member 4 facing away from the blade 5, so as to accommodate the second bearing 8. The second bearing 8 in the present application is a thrust ball bearing. When the second cover 3 is connected to the base 1 and the hydraulic oil passes through, the hydraulic oil acts on the blade 5, so that the adjusting member 4 obtains the thrust of the hydraulic oil and fits tightly with the thrust ball bearing, and then the thrust ball bearing can realize the rotation of the adjusting member 4 relative to the base 1 and the second cover 3.

[0066] Since the lubricating oil and hydraulic oil of the second bearing 8 are two different oils, the present application further provides a second seal 9 and a sealing protrusion 901 formed on the second seal 9 to isolate the second bearing 8 from the hydraulic oil, thereby ensuring the stability of the operation of the entire device.

[0067] Alternatively, as Figures 1-4 As shown, the flow regulating device provided by the present invention also includes a connecting component. A plurality of connecting holes are formed on the first cover 2, the second cover 3, the second seal 9, and the base 1. The connecting component is arranged through the connecting holes to press the first cover 2 and the second cover 3 on both sides of the base 1.

[0068] The connection assembly in this application includes a long bolt 11, a washer 12 and a locking nut 13, such as Figure 2 As shown, in the present application, corresponding connecting holes are formed on the base 1, the first cover 2, the second cover 3 and the second seal 9, so that the long bolt 11 can pass through the connecting holes, and through the cooperation of the locking nut 13 and the long bolt 11, the first cover 2 and the second cover 3 can be pressed on both sides of the base 1, thereby achieving the compression of the second seal 9.

[0069] Accordingly, since oil leakage may also occur between the first cover 2 and the base 1, the present application further provides a third seal 10 between the first cover 2 and the base 1. At the same time, a connecting hole is also formed on the third seal 10, so that the third seal 10 can be pressed between the first cover 2 and the base 1 to ensure the sealing performance between the first cover 2 and the base 1.

[0070] It is necessary to add that, if Figure 5The figure shows a schematic diagram of the flow regulating device 14 provided in the present application being connected to the hydraulic system, wherein there are two flow regulating devices, which can regulate the flow of hydraulic oil A1-A2 and B2-B1. Since the present application further provides two control valves 15, four regulation modes can be achieved, namely, A1-A2 and B2-B1 both flow through the flow regulating device 14, or A1-A2 does not flow through the flow regulating device 14 and B2-B1 flows through the flow regulating device 14, or A1-A2 flows through the flow regulating device 14 and B2-B1 does not flow through the flow regulating device 14, or neither A1-A2 nor B2-B1 flows through the flow regulating device 14. Since the flow regulating device 14 in the present application can be driven by three types of means: a handwheel 6, a drive motor, and a hydraulic motor, it can adapt to different flow pressures and ensure the stable operation and flow regulation accuracy of the overall hydraulic system.

[0071] When the flow control device provided in this application is installed in the system, measuring the hydraulic system's damping requires energizing the two-position, three-way solenoid valve on the A1-A2 line and de-energizing the two-position, three-way solenoid valve on the B2-B1 line, placing the A-side oil port in a throttled state. The measurement and control system collects signals from the flow sensor and pressure sensor, analyzes and calculates the hydraulic system's damping aperture value under the current meter-in state when port A is connected to the pressure port.

[0072] Furthermore, to measure hydraulic system damping, the two-position, three-way solenoid valve on the A1-A2 line is de-energized, while the two-position, three-way solenoid valve on the B2-B1 line is energized, placing the B-side oil port in a throttled state. The measurement and control system collects signals from the flow sensor and pressure sensor, analyzes and calculates them, and determines the hydraulic system damping aperture value in the current meter-out state when port A is connected to the pressure port.

[0073] Furthermore, to measure hydraulic system damping, the two-position, three-way solenoid valve on the A1-A2 line and the two-position, three-way solenoid valve on the B2-B1 line are energized, placing both sides A, B, and the oil port in a throttled state. The measurement and control system collects signals from the flow and pressure sensors on the corresponding lines and, through analysis and calculation, determines the hydraulic system damping aperture value for ports A and B in the current throttled state.

[0074] Next, de-energize the two-position, three-way solenoid valve on the A1-A2 line and the two-position, three-way solenoid valve on the B2-B1 line. Turning handwheel 6, the electric motor or hydraulic motor drives the flow control device to reset to the maximum throttle aperture, eliminating significant hydraulic damping within the system.

[0075] At this time, both the inlet and outlet are in the unthrottled state. The hydraulic system's action or response speed in the current state can be compared with the speed in the throttled state, and the difference between the states can be intuitively read.

[0076] When the test is completed, the system is reset. When the system is reset, the two-position three-way electromagnetic reversing valve on the A1-A2 line is powered off, the two-position three-way electromagnetic reversing valve on the B2-B1 line is powered off, the proportional overflow valve is powered off, and the flow regulating device is driven to the maximum throttling aperture state by the hand wheel 6, the direct current servo motor or the micro hydraulic servo motor. Even if the hydraulic system is connected in the shutdown state of the device, the device is still in the most energy-saving working condition, and each place is in the maximum flow area state, and there is no system pressure holding situation, so that the safety hidden danger caused by operation error can be avoided.

[0077] It should be noted that the features in the embodiments of the present application can be combined with each other without conflict.

[0078] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A flow regulating device, characterized in that: It includes a base assembly, blades, an adjustment member and a drive assembly; The base assembly is formed with a flow hole, an annular positioning portion is formed along the inner wall of the flow hole, and a plurality of guide grooves are formed along the circumference of the positioning portion, and the plurality of guide grooves all extend in the radial direction; The number of the blades corresponds to the guide grooves, and the blades are arc-shaped. A first column is formed on the first surface of one end of the blade, and a second column is formed on the second surface. The adjusting member is rotatably connected to the base assembly, and a positioning hole corresponding to the guide groove is formed along the circumference of the adjusting member. The first column is inserted into the guide groove and the second column is inserted into the positioning hole. The driving assembly is connected to the adjusting member to drive the adjusting member to rotate relative to the base assembly.

2. The flow regulating device according to claim 1, characterized in that: The base assembly includes a base, a first cover and a second cover; The first cover and the second cover are relatively arranged on both sides of the base, and both the first cover and the second cover are formed with a through hole, the center of the through hole and the center of the flow hole are located in the same straight line, and the diameter of the through hole is smaller than the diameter of the flow hole and is adapted to the inner ring diameter of the positioning portion.

3. The flow regulating device according to claim 2, characterized in that: The inner wall of the flow hole is formed with a sliding groove, the sliding groove is circular, and the regulating member is arranged in the sliding groove; The base is formed with a receiving hole connected to the sliding groove, part of the adjusting member can enter the receiving hole, and the adjusting member entering the receiving hole is formed with a first engaging portion, the driving assembly includes a driving member and a mating member, one end of the driving member is connected to one end of the mating member, the other end of the mating member is inserted into the receiving hole, and a second engaging portion is formed at the position corresponding to the first engaging portion, and the first engaging portion and the second engaging portion are engaged with each other.

4. The flow regulating device according to claim 3, characterized in that: The driving member is a hand wheel, and the matching member is a worm. The hand wheel is detachably connected to one end of the worm, and the other end of the worm is inserted into the receiving hole and can rotate relative to the base. The first engagement portion is a worm gear, and the worm gear covers a portion of a side wall of the adjustment member along a circumferential direction of the adjustment member.

5. The flow regulating device according to claim 4, characterized in that: The driving component is a driving motor or a hydraulic motor, and the driving motor is detachably connected to one end of the worm or the hydraulic motor is detachably connected to one end of the worm.

6. The flow regulating device according to claim 4, characterized in that: The drive assembly further includes a positioning member, a sealing plug, a first bearing, a bearing retaining ring and a first sealing member; The accommodating hole passes through the base in a first direction. The first sealing member is located in the accommodating hole and is sleeved on one end of the worm gear close to the handwheel. The inner ring of the first bearing is sleeved on the other end of the worm gear, and the outer ring is fixedly connected to the inner wall of the accommodating hole. The bearing retaining ring stops the first bearing, the sealing plug seals the accommodating hole, and the positioning member locks the sealing plug.

7. The flow regulating device according to claim 2, characterized in that: The base assembly further includes a locking member. A locking hole is formed on the base. The locking member is threadedly engaged with the locking hole. One end of the locking member passes through the locking hole to abut against or separate from the side wall of the adjusting member.

8. The flow regulating device according to claim 2, characterized in that: The adjusting member is formed with a pointer portion, and the base is formed with a slideway. The pointer portion is arranged through the slideway, and the pointer portion can slide in the slideway to drive the adjusting member to rotate relative to the base.

9. The flow regulating device according to claim 2, characterized in that: It also includes a second bearing and a second sealing member, wherein a receiving groove is formed on a side of the regulating member away from the blade, and the second bearing is embedded in the receiving groove; The second sealing member is disposed between the second cover and the base, and a sealing convex portion is formed on the second sealing member. The sealing convex portion is tightly fitted with the inner ring of the second bearing.

10. The flow regulating device according to claim 9, characterized in that: It also includes a connecting component. A plurality of connecting holes are formed on the first cover, the second cover, the second seal, and the base. The connecting component is set through the connecting holes to press the first cover and the second cover on both sides of the base.

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