CN201277342Y

CN201277342Y - Differential pinch valve

Info

Publication number: CN201277342Y
Application number: CNU2008202186819U
Authority: CN
Inventors: 崔永泉
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-27
Filing date: 2008-10-27
Publication date: 2009-07-22
Anticipated expiration: 2018-10-27

Abstract

The utility model belongs to industrial valves, in particular to a differential pipe clamp valve. The differential pipe clamp valve is characterized in that a clamp tube mechanism takes a rolling clamp type, a pair of rolling clamping bars are arranged in a valve body, a roll shell is installed outside the clamping bars, a rubber hose is arranged between two clamping bars on the vertical direction, one clamping bar is fixedly connected with an upper pair of rolling gears eccentrically, the other clamping bar is fixedly connected with a lower pair of rolling gears eccentrically, a swing frame is fixedly connected with a main spindle through a key, a hand wheel is fixedly connected with an endless screw, the endless screw is engaged and connected in a driving mode with a worm gear belt gear on the main spindle, a speed reduction motor is connected with the main spindle in a driving mode, and gears are arranged on the main spindle and are engaged and connected with an epicyclic gear in a driving mode to form a differential gear train. The differential pipe clamp valve is characterized in that the design is rational and the operation is simple and convenient, and the problem that an existing pipe clamp is easily overloaded and locked tightly is solved. Free conversion between electro motion and hand motion is available, hand motion and electro motion also can be operated simultaneously, and the operation is simple and convenient.

Description

Differential pipe clip valve

Technical field

The utility model belongs to industrial valve, particularly a kind of differential pipe clip valve.

Background technique

The kind of industry valve is a lot, and pipe clip valve is a kind of of industrial valve.Existing pipe clip valve mostly is single manually-operable, or manually and add electronic operation, also be add on the basis of original manual pipe clamp valve electronic.The clamp mechanism of its pipe clip valve also all is to be rotated by handwheel, and by positive left-hand thread transmission, lower clamp beam clamping sebific duct in the drive makes sebific duct produce distortion, thus the flow size of flowing medium in the control valve.The shortcoming of this kind pipe clip valve is that the folding limit of valve all has the dead point, when being used for electronic control like this, to limit switch that requirement is set is extremely tight, in case limit switch is malfunctioning, will cause burning or the mechanical damage of valve of motor.In addition, this kind clamp mechanism is constant all the time to its folded sebific duct force bearing point, and clamping force is wayward, very easily excessive during valve closes, makes sebific duct produce destruction too early, influences the working life of valve.

Summary of the invention

The utility model has overcome the defective of above-mentioned existence, and purpose is to provide a kind of high-grade differential pipe clip valve for industrial valve.

The differential pipe clip valve content Description of the utility model:

The differential pipe clip valve of the utility model, it is characterized in that: clamp mechanism is for rolling the folder formula, it is the clamping bar that a pair of rolling is set in valve body, roller shell is equipped with in the outside of clamping bar, and the vertical orientation of two clamping bars is provided with sebific duct, and a clamping bar is fixedlyed connected to hobbing machine off-centre with last, another clamping bar is fixedlyed connected to hobbing machine off-centre with following, rocker is fixedlyed connected with main shaft by key, and handwheel is fixedlyed connected with worm screw, and worm screw is connected with worm gear band meshed transmission gear on the main shaft; Reducing motor is connected with spindle, is provided with gear on main shaft, and gear and planetary pinion are connected by meshing transmission, and constitutes differential gear train.

The differential pipe clip valve of the utility model has characteristics reasonable in design, simple to operation, has solved existing pipe clip valve overload and locked problem easily.Can be electronic with manually freely change, manual, electronic can also the operation simultaneously, simple to operation.

Description of drawings

Fig. 1 is differential pipe clip valve structural representation

Among the figure: the 1st, valve body, the 2nd, sebific duct, the 3rd, roller shell, the 4th, clamping bar, the 5th is gone up hobbing machine, the 6th, valve seat, the 7th, planetary pinion, the 8th, planet pin, the 9th, rocker, the 10th, key, the 11st, main shaft, the 12nd, worm gear band gear, the 13rd, worm screw, the 14th, handwheel, the 15th, loam cake, the 16th, reducing motor, the 17th, back-up ring, the 18th, code-disc, the 19th, gear, the 20th, bearing, the 21st, screw, the 22nd is down to hobbing machine.

Embodiment

The differential pipe clip valve of the utility model is achieved in that to do below in conjunction with accompanying drawing and specifies.See Fig. 1, differential pipe clip valve is by: valve body 1, sebific duct 2, roller shell 3, clamping bar 4, goes up hobbing machine 5, valve seat 6, planetary pinion 7, planet pin 8, rocker 9, key 10, main shaft 11, worm gear band gear 12, worm screw 13, handwheel 14, loam cake 15, reducing motor 16, code-disc 18, gear 19, bearing 20, screw 21 and down hobbing machine 22 is constituted.

The mode of clamp is for rolling the folder formula, it is the clamping bar 4 that a pair of rolling is set in valve body 1, roller shell 3 is equipped with in the outside of clamping bar 4, the vertical orientation of two clamping bars 4 is provided with sebific duct 2, a clamping bar 4 is fixedlyed connected to hobbing machine 5 off-centre with last, and to hobbing machine 22 eccentric fixedlying connected, fixedlys connected with main shaft 11 by key 10 by rocker 9 with down for another clamping bar 4, handwheel 14 is fixedlyed connected with worm screw 13, and the worm gear band gear 12 on worm screw 13 and the main shaft 11 is connected by meshing transmission; Reducing motor 16 is in transmission connection with main shaft 11, is provided with gear 19 on main shaft 11, and gear 19 and the planetary pinion 7 formation differential gear train that is connected by meshing transmission can be realized not having switching and implement manually or electric operating.

The clamp mechanism that the utility model adopted is the clamping bar that is provided with a pair of rolling for rolling the folder formula, and roller shell is equipped with in the clamping bar outside.In the process that implement to clamp, the force bearing point of its sebific duct is that the axis along sebific duct moves to clamping bar to sebific duct, and this rotates around it axle separately to clamping bar and can realize 360 degree rotations, thus, as long as clamping force is set, just can not produce overload.

When implementing manually-operable, reducing motor 16 is motionless, and main shaft 11 is also motionless, and also motionless by the rocker 9 that key 10 and main shaft 11 are fixed together, at this moment, whole train becomes fixed shaft gear train.The worm screw 13 that rotation handwheel 14 is fixed together with it just begins to rotate, and the worm gear band gear 12 and planetary pinion 7, the gear 19 that are enclosed within on the main shaft 11 by sky are delivered to down rotation to hobbing machine 22, down hobbing machine 22 is meshed hobbing machine 5 with last, thereby in the drive to hobbing machine 5 with reverse to hobbing machine 22 down to rolling, because being off-centre, clamping bar 4 is fixed on down hobbing machine 22 with last on the hobbing machine 5, so, just drive a pair of clamping bar 4 and produce radially clamping movement by 3 pairs of sebific ducts 2 of roller shell when gear mesh rolls, force bearing point produces along axis and moves simultaneously.

When implementing electric operating, reducing motor 16 rotates, make main shaft 11 rotations, and drive rocker 9 and planetary pinion 7 around its rotation, because gear 19 is 30 with the number of teeth of planetary pinion 7, and the number of teeth of worm gear band gear 12 is 29, planetary pinion 7 whenever circles around main shaft 11 like this, gear 19 just produces the angular displacement of 12 degree, the i.e. angular displacement of a tooth pitch.Velocity ratio is under 1: 30. gear 19 drives hobbing machine 22 to be realized rotating with same angular velocity, and drive upward reverse to rolling to hobbing machine 5. drive a pair of clamping bar 4 simultaneously and produce radially clamping movement by 3 pairs of sebific ducts 2 of roller shell, force bearing point produces along axis and moves simultaneously.

Because the differential pipe clip valve of the utility model has adopted differential gear train, manually, simple to operation with electronic can the operation simultaneously, solved existing pipe clip valve overload and locked problem easily.In the Transmitted chains of differential pipe clip valve, be provided with differential attachment, can make electronic and the manual switch freedom, need not do the clutch operation, manual and electric can also be operated simultaneously, operates extremely simple and convenient.As add and intelligent control system can realize intelligent control very easily.

Claims

1, a kind of differential pipe clip valve, be by valve body (1), sebific duct (2), roller shell (3), clamping bar (4), go up hobbing machine (5), valve seat (6), planetary pinion (7), planet pin (8), rocker (9), key (10), main shaft (11), worm gear band gear (12), worm screw (13), handwheel (14), loam cake (15), reducing motor (16), code-disc (18), gear (19), bearing (20), screw (21) and down hobbing machine (22) being constituted, it is characterized in that: the mode of clamp is for rolling the folder formula, it is the clamping bar (4) that a pair of rolling is set in valve body (1), roller shell (3) is equipped with in the outside of clamping bar (4), the vertical orientation of two clamping bars (4) is provided with sebific duct (2), a clamping bar (4) is fixedlyed connected to hobbing machine (5) is eccentric with last, another clamping bar (4) is fixedlyed connected to hobbing machine (22) is eccentric with following, rocker (9) is fixedlyed connected with main shaft (11) by key (10), handwheel (14) is fixedlyed connected with worm screw (13), and the worm gear band gear (12) on worm screw (13) and the main shaft (11) is connected by meshing transmission; Reducing motor (16) is in transmission connection with main shaft (11), is provided with gear (19) on main shaft (11), and gear (19) is connected by meshing transmission with planetary pinion (7), constitutes differential gear train.