CN208900814U

CN208900814U - A kind of novel valve actuator

Info

Publication number: CN208900814U
Application number: CN201821296417.7U
Authority: CN
Inventors: 金松景
Original assignee: Ruida Automatic Control Valve Co Ltd
Current assignee: Ruida Automatic Control Valve Co Ltd
Priority date: 2018-08-13
Filing date: 2018-08-13
Publication date: 2019-05-24
Anticipated expiration: 2028-08-13

Abstract

The utility model relates to valve technology fields, specially a kind of novel valve actuator, valve stem nut including cabinet and rotation inside it, shaft-cup is connected on the cabinet, the shaft-cup is equipped with the lubricating box vertical with the valve stem nut axis direction, and the inner rotation of the lubricating box connects sprocket drive spindle, and one end of the gear shaft is connected with handwheel, the handwheel is located at the outside of the lubricating box, and the other end of the gear shaft has bevel gear；Because being equipped with the valve stem nut and its transmission device being sealed in cabinet and shaft-cup; reliable seal protection can be carried out to transmission parts; it reduces and is interfered by the corrosion of natural conditions; and transmission device is made of bevel gear set; it can change its transmission ratio and transmission direction, user can operate handwheel in vertical plane, and greatly reduce rotating torque; and there is good transmission accuracy and controllability, be conducive to operating personnel's being precisely controlled for valve.

Description

A kind of novel valve actuator

Technical field

The utility model relates to valve technology field, specially a kind of novel valve actuator.

Background technique

Valve be in the fluid system, for control the direction of fluid, pressure, flow device.Valve be make piping and Media flow or stopping in equipment and the device that can control its flow.Valve can be used for controlling empty gas and water, steam, various corruption The flowing of the various types fluid such as corrosion medium, mud, oil product, liquid metal and radiating medium.Valve is that pipeline fluid is defeated Send control unit in system, it be for changing access section and flow direction of medium, have water conservancy diversion, cut-off, throttling, non-return, The functions such as shunting or overflow release.For the valve of fluid control, from simplest shut-off valve to extremely complex robot control system(RCS) Used in various valves, kind and specification are various, and the inside nominal diameter of valve reaches 10m to latus rectum greatly from atomic small gauge valve Industrial pipeline valve.

Original valve actuating device is usually to be connected directly with driving screw rod, is in vertical direction, manual actuation process In rotated in the horizontal direction due to handwheel, and height is constantly changing, and is not only inconvenient to exert a force, and due to drive lead screw at In vertical state, influenced by natural conditions, it is difficult to preferable lubrication is maintained, so the resistance of driving is caused to become larger, To which inconvenient operating personnel accurately and reliably controls valve.

Utility model content

(1) the technical issues of solving

In view of the deficiencies of the prior art, the utility model provides a kind of novel valve actuator, has convenient for manipulation, can The problem of the advantages that lubrication leaned on, it is big to solve operation resistance, not can be carried out reliable control.

(2) technical solution

Above-mentioned convenient for manipulation to realize, with the purpose reliably lubricated, the utility model is provided the following technical solutions: one Kind of novel valve actuator, the valve stem nut including cabinet and rotation inside it are connected with shaft-cup on the cabinet, The shaft-cup is equipped with the lubricating box vertical with the valve stem nut axis direction, and the inner rotation connection of the lubricating box is with teeth Wheel shaft, one end of the gear shaft are connected with handwheel, and the handwheel is located at the outside of the lubricating box, the gear shaft it is another End has bevel gear, is connected on the valve stem nut and cap, and the outer wall of described and cap and valve stem nut is arranged set with teeth, described The outer wall of tooth set is fixed with transmission gear, the transmission gear and bevel gear engagement connection.

Preferably, the top of the valve stem nut is connected with valve stem nut interconnecting piece, the valve stem nut interconnecting piece it is outer Wall is spirally connected there are two described and cap, and described and cap is fastened on the inner wall of the tooth set.

Preferably, the upper and lower end faces that the tooth covers pass through thrust bearing and are rotatably connected on the shaft-cup and cabinet respectively Inner wall, the outer wall of tooth set is additionally provided with O-shaped rubber ring.

Preferably, there is the outer wall of the tooth set tooth to cover latch, and the inner wall of the transmission gear is equipped with inner card cage, the tooth Set latch and inner card cage are connected together, and the transmission gear is stuck on the shaft shoulder of tooth set, the transmission gear and tooth set Other end carries out axial fixation by thrust bearing.

Preferably, there is tooth plate, the transmission gear engages company with the bevel gear by tooth plate on the transmission gear It connects, the transmission ratio between the bevel gear and the transmission gear is 5.2:1.

Preferably, the gear shaft is rotatably connected on the inner wall of the lubricating box, the lubricating box by deep groove ball bearing On be additionally provided with pump nozzle, the gear shaft is equipped with the sealing ring fixed by circlip close to one end outer wall of the handwheel.

Preferably, the middle position of the handwheel is equipped with handle, and the handle is fixed on the gear by A type flat key The outer wall of axis is rotatably connected to handwheel sleeve on the outside of the handwheel.

(3) beneficial effect

Compared with prior art, the utility model provides a kind of novel valve actuator, have it is following the utility model has the advantages that

1, this kind of valve actuator easy to operate because device be equipped with the valve stem nut that is sealed in cabinet and shaft-cup and its Transmission device can carry out reliable seal protection to transmission parts, reduce and interfered by the corrosion of natural conditions, and be driven dress Set and be made of bevel gear set, thus it is possible to vary its transmission ratio and transmission direction, user can in vertical plane manipulator Wheel, and rotating torque is greatly reduced, be conducive to operator and reliably controlled.

2, this kind of valve actuator easy to operate can be added because being equipped with lubricating box in the outside of gear shaft by lubricating box Lubricating oil is infused, keeps transmission parts that there is good lubrication, can not only guarantee the steady reliable of transmission, and there is good biography Dynamic precision and controllability, are conducive to operating personnel's being precisely controlled for valve.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the schematic diagram of internal structure of the utility model.

Fig. 3 is that the tooth of the utility model covers overlooking structure diagram.

In figure: 1, cabinet；11, thrust bearing；12, pump nozzle；13, deep groove ball bearing；2, shaft-cup；3, lubricating box；4, hand Wheel；41, handle；42, handwheel sleeve；5, valve stem nut；501, valve stem nut interconnecting piece；And cap 51,；6, tooth set；61, tooth set card Tooth；7, transmission gear；71, inner card cage；72, tooth plate；8, gear shaft；81, bevel gear.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1-3, the utility model provides a kind of technical solution: a kind of novel valve actuator, including cabinet 1 with And rotation valve stem nut 5 inside it, shaft-cup 2 is connected on cabinet 1, and shaft-cup 2 is equipped with and 5 axis side of valve stem nut To vertical lubricating box 3, internal transmission parts progress can completely be sealed by cabinet 1, shaft-cup 2 and lubricating box 3 Come, prevents from interfering device lubrication because of natural cause, the inner rotation of lubricating box 3 connects sprocket drive spindle 8, gear shaft 8 One end is connected with handwheel 4, and handwheel 4 is located at the outside of lubricating box 3, and the other end of gear shaft 8 has a bevel gear 81, when operation, leads to It crosses the i.e. controllable gear shaft 8 of rotation handwheel 4 to be rotated in lubricating box 3, simultaneously cap 51, and cap 51 is connected on valve stem nut 5 It is arranged set 6 with teeth with the outer wall of valve stem nut 5, the outer wall of tooth set 6 is fixed with transmission gear 7, and transmission gear 7 and bevel gear 81 nibble Connection is closed, since the bevel gear 81 of 8 end of gear shaft engages with transmission gear 7, and then transmission gear 7 is controlled and occurs to turn Dynamic, tooth set 6 then drives valve stem nut 5 to be rotated by simultaneously cap 51.

Further, the top of valve stem nut 5 is connected with valve stem nut interconnecting piece 501, valve stem nut interconnecting piece 501 it is outer Wall is spirally connected, and there are two simultaneously caps 51, and cap 51 is fastened on the inner wall of tooth set 6, and two and cap 51 are screwed onto valve stem nut interconnecting piece 501 outer wall can mutually form extruding, guarantee two and cap 51 can be in valve stem nut interconnecting piece 501 with relatively reliable Position, tooth set 6 upper and lower end faces pass through the inner wall that thrust bearing 11 is rotatably connected on shaft-cup 2 and cabinet 1 respectively, tooth set 6 outer wall is additionally provided with O-shaped rubber ring, can cover 6 to tooth by thrust bearing 11 and form good lubrication, guarantees its rotation essence Degree, in addition, the position that two thrust bearings 11 can cover 6 to tooth is defined, it can by the O-shaped rubber ring of the outer wall of tooth set 6 To reduce the exudation that lubrication has, there is the outer wall of tooth set 6 tooth to cover latch 61, and the inner wall of transmission gear 7 is equipped with inner card cage 71, tooth set Latch 61 and inner card cage 71 are connected together, and transmission gear 7 is stuck on the shaft shoulder of tooth set 6, the other end of transmission gear 7 and tooth set 6 Face carries out axial fixation by thrust bearing 11, covers the tooth set 6 and transmission that latch 61 and inner card cage 71 are mutually clamped by tooth Gear 7 guarantees there is reliable transmission, realizes the transmission to valve stem nut 5, has tooth plate 72, transmission gear 7 on transmission gear 7 Connection is engaged with bevel gear 81 by tooth plate 72, the transmission ratio between bevel gear 81 and transmission gear 7 is 5.2:1, by larger Transmission ratio can reduce the driving torques of operator's needs, and then convenient working personnel operate, and gear shaft 8 passes through zanjon Ball bearing 13 is rotatably connected on the inner wall of lubricating box 3, is additionally provided with pump nozzle 12 on lubricating box 3, gear shaft 8 close to handwheel 4 one It holds outer wall to be equipped with the sealing ring fixed by circlip, can guarantee that gear shaft 8 turns in lubricating box 3 by deep groove ball bearing 13 It is dynamic reliable, and oiling can periodically be carried out by pump nozzle 12, guarantee lubricant effect, the middle position of handwheel 4 is equipped with handle 41, handle 41 is fixed on the outer wall of gear shaft 8 by A type flat key, and the outside of handwheel 4 is rotatably connected to handwheel sleeve 42, Ke Yibao Demonstrate,prove the connection between handwheel 4 and gear shaft 8.

Working principle: when being controlled, the handle 41 on handwheel 4 is rotated, rotation handwheel 4 controls 8 turns of gear shaft It is dynamic, and then rotated with dynamic bevel gear 81, bevel gear 81 is engaged with transmission gear 7 by tooth plate 72, then driving cog 7 band movable tooth set 6 of wheel covers latch 61 by tooth and is rotated, and tooth set 6 then drives the valve stem nut 5 for being located at its inner wall to rotate, and completes Control to valve, and reliable seal protection can be carried out to transmission parts by the cabinet 1 of sealing and shaft-cup 2, reduce by Corrosion to natural conditions is interfered, and since bevel gear 81 and transmission gear 7 change its transmission ratio and transmission direction, user Handwheel 4 can be operated in vertical plane, and greatly reduces rotating torque, be conducive to operator and reliably controlled System can not only guarantee the steady reliable of transmission, and have good transmission accuracy and controllability, be conducive to operating personnel for Valve is precisely controlled.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in process, method, article or equipment including the element.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of novel valve actuator, the valve stem nut (5) including cabinet (1) and rotation inside it, it is characterised in that: It is connected with shaft-cup (2) on the cabinet (1), the shaft-cup (2) is equipped with vertical with the valve stem nut (5) axis direction Lubricating box (3), the inner rotation of the lubricating box (3) connects sprocket drive spindle (8), and one end of the gear shaft (8) is connected with Handwheel (4), the handwheel (4) are located at the outside of the lubricating box (3), and the other end of the gear shaft (8) has bevel gear (81), it is connected on the valve stem nut (5) and cap (51), the outer wall of described and cap (51) and valve stem nut (5) is arranged with teeth It covers (6), the outer wall of the tooth set (6) is fixed with transmission gear (7), the transmission gear (7) and the bevel gear (81) engagement Connection.

2. a kind of novel valve actuator according to claim 1, it is characterised in that: the top of the valve stem nut (5) It is connected with valve stem nut interconnecting piece (501), the outer wall of the valve stem nut interconnecting piece (501) is spirally connected, and there are two described and caps (51), described and cap (51) is fastened on the inner wall of the tooth set (6).

3. a kind of novel valve actuator according to claim 1, it is characterised in that: the upper and lower ends of the tooth set (6) Face passes through the inner wall that thrust bearing (11) is rotatably connected on the shaft-cup (2) and cabinet (1) respectively, the tooth set (6) it is outer Wall is additionally provided with O-shaped rubber ring.

4. a kind of novel valve actuator according to claim 1, it is characterised in that: the outer wall of the tooth set (6) has Tooth covers latch (61), and the inner wall of the transmission gear (7) is equipped with inner card cage (71), tooth set latch (61) and inner card cage (71) Be connected together, the transmission gear (7) is stuck on the shaft shoulder of the tooth set (6), the transmission gear (7) and tooth set (6) it is another One end face carries out axial fixation by thrust bearing (11).

5. a kind of novel valve actuator according to claim 1, it is characterised in that: have on the transmission gear (7) Tooth plate (72), the transmission gear (7) engage connection with the bevel gear (81) by tooth plate (72), the bevel gear (81) and Transmission ratio between the transmission gear (7) is 5.2:1.

6. a kind of novel valve actuator according to claim 1, it is characterised in that: the gear shaft (8) passes through zanjon Ball bearing (13) is rotatably connected on the inner wall of the lubricating box (3), is additionally provided with pump nozzle (12) on the lubricating box (3), described One end outer wall of the gear shaft (8) close to the handwheel (4) is equipped with the sealing ring fixed by circlip.

7. a kind of novel valve actuator according to claim 1, it is characterised in that: the middle position of the handwheel (4) Place is equipped with handle (41), and the handle (41) is fixed on the outer wall of the gear shaft (8) by A type flat key, the handwheel (4) Outside is rotatably connected to handwheel sleeve (42).