CN207796241U - A kind of valve self-locking worm gear reducer driving device - Google Patents

Abstract

The utility model proposes a kind of valve self-locking worm gear reducer driving devices, including babinet, case lid, the first axle sleeve, input shaft, worm screw, turbine and handwheel, rubber gasket is set between babinet and case lid, axis hole is equipped in babinet, the first end of input shaft stretches into axis hole, and worm screw has been bolted on input shaft, the turbine cooperation in worm screw and case lid, first axle is set between input shaft and axis hole, and the second end of input shaft is connect with handwheel；Wherein, the tube wall of the first axle sleeve is equipped at least one through-hole, and ball is arranged in through-hole, a rubber sealing boot is arranged outside the tube wall of the first axle sleeve.

Description

A kind of valve self-locking worm gear reducer driving device

Technical field

The utility model is related to valve high efficiency worm gear reducer driving device more particularly to a kind of valve self-locking snails Take turns speed reducing driving device.

Background technology

(hereinafter referred to as worm wheel head, it is general that worm wheel head is that valve industry drives worm gear reducer to worm gear reducer driving device Referred to as) main application and the keying of valve control, and are divided into single-stage worm wheel head, twin-stage worm wheel head, multi-stage gear and are driven with worm gear reducer For dynamic, planetary gear with worm gear reducer driving etc., single-stage worm wheel head is typically employed in 1/4 week valve opened and closed of more small-bore rotation On, such as butterfly valve, ball valve etc.；Meanwhile worm wheel head is also classified into angle stroke (90 degree of stroke) and more revolutions (360 deg rotating displaying), It is also differed according to the valve types of structure different application.Traditional valve with worm wheel head mainly by：Babinet, input shaft, worm gear, Worm screw, oil sealing, tightening adjusting screw, case lid, gasket, box body bolt, spring washer, locking nut, caging bolt, worm gear O-ring, Switch direction board, switch direction board screw, handwheel and pin members composition.Wherein, rubber is used between babinet and case lid Pad sealing；Sealing ring in addition to input shaft lacks locking and seal member, therefore prior art worm gear between input shaft and babinet Head has the following problems：Sealing between babinet and case lid uses rubber seal, rubber using meeting aging in a period of time, Using rubber after a period of time can and babinet and case lid adhesion, in maintaining or very troublesome, and input shaft when with changing The serious wear between babinet can lead to occur gap between input shaft and babinet, to influence to use and sealing effect.

Utility model content

To overcome the problems of the prior art, the utility model proposes valve self-locking worm gear reducer driving device packet Babinet, case lid, the first axle sleeve, input shaft, worm screw, turbine and handwheel are included, rubber gasket is set between the babinet and case lid, Axis hole is equipped in the babinet, the first end of the input shaft is stretched into the axis hole, is bolted on the input shaft There is the worm screw, turbine in the worm screw and case lid cooperation, the first axle is set on the input shaft and described Between axis hole, the second end of the input shaft is connect with the handwheel；Wherein, the tube wall of first axle sleeve is equipped at least one A through-hole, the through-hole is interior to be arranged ball, and a rubber sealing boot is arranged outside the tube wall of first axle sleeve.

The utility model proposes the valve in self-locking worm gear reducer driving device, the section of the through-hole is to incline Oblique chamfering.

The utility model proposes the valve in self-locking worm gear reducer driving device, the diameter of the ball is more than The pipe thickness of first axle sleeve.

The utility model proposes the valve in self-locking worm gear reducer driving device, the upper end of the turbine connects Direction board is switched, the switch direction board is connected by screw with the turbine.

The utility model proposes the valve in self-locking worm gear reducer driving device, further comprise end cap, institute It states end cap to be arranged in the axis hole, the first end in contact of the end cap and the input shaft.

The utility model proposes the valve in self-locking worm gear reducer driving device, on the outside of the axle sleeve further It is provided with oil sealing.

The utility model proposes the valve in self-locking worm gear reducer driving device, the first end of the input shaft Outside is equipped with the second axle sleeve.

Compared with prior art, the beneficial effects of the utility model：The utility model passes through the process of insertion input shaft, profit Ball is jacked up to outside axle sleeve with input shaft, to by rubber sealing boot and axis hole close fit, to make axle sleeve and axis hole it Between lock and formed sealed connection, solve input shaft and axis hole rub the wear problem to be formed, also solve because of rubber seal Enclose adhesion problems caused by aging.

Description of the drawings

Fig. 1 is the outside schematic diagram of the utility model valve self-locking worm gear reducer driving device.

Fig. 2 is the A-A sectional views of Fig. 1.

In figure, 1- babinets, 2- case lids, the first axle sleeves of 3-, 4- input shafts, 5- worm screws, the second axle sleeves of 6-, 7- handwheels, 8- axis Hole, 9- switch direction board, 10- through-holes, 11- balls, 12- rubber sealing boots, 13- end caps, 14- oil sealings.

Specific implementation mode

Below in conjunction with schematic diagram to the utility model proposes valve carried out more with self-locking worm gear reducer driving device Detailed description, which show the preferred embodiments of the utility model, it should be appreciated that those skilled in the art can change The utility model of this description, and still realize the advantageous effects of the utility model.Therefore, following description should be understood as pair In the widely known of those skilled in the art, and it is not intended as limitations of the present invention.

Referring to Fig. 1, the utility model valve self-locking worm gear reducer driving device includes babinet 1, case lid 2, first axle Set 3, input shaft 4, worm screw 5, turbine and handwheel 7, are arranged rubber gasket between the babinet 1 and case lid 2, in the babinet 1 Equipped with axis hole 8, the first end of the input shaft 4 stretches into the axis hole 8, has been bolted on the input shaft 4 described Worm screw 5, the turbine cooperation in the worm screw 5 and the case lid 2, first axle sleeve 3 are arranged in the input shaft 4 and the axis Between hole 8, the second end of the input shaft 4 is connect with the handwheel 7.The upper end connecting valve direction board 9 of the turbine, it is described Switch direction board 9 is connected by screw with the turbine.

Referring specifically to Fig. 2, wherein the tube wall of first axle sleeve 3 is equipped at least one through-hole 10, in the through-hole 10 Ball 11 is set, a rubber sealing boot 12 is arranged outside the tube wall of first axle sleeve 3.Through-hole 10 and rolling in this specific embodiment The quantity of pearl 11 is two, and those skilled in the art can be according to actual use demand adjustment.Preferably, section of the through-hole 10 Face is inclined chamfering.The diameter of the ball 11 is more than the pipe thickness of first axle sleeve 3.The utility model passes through insertion The process of input shaft 4 is jacked up ball 11 to outside axle sleeve using input shaft 4, to match rubber sealing boot 12 and axis hole 8 closely It closes, to make to lock and be formed sealed connection between axle sleeve and axis hole 8, solves the abrasion of input shaft 4 and the friction formation of axis hole 8 Problem also solves the adhesion problems caused by rubber seal aging.

As shown in Fig. 2, the preferred embodiment of the utility model further comprises that end cap 13, the end cap 13 are arranged in institute It states in axis hole 8, the first end in contact of the end cap 13 and the input shaft 4.It is further preferable that further being set on the outside of the axle sleeve It is equipped with oil sealing 14.The second axle sleeve 6 is equipped on the outside of the first end of the input shaft 4, the second axle sleeve 6 is existing axle sleeve, is played pair In the protection that 4 end of input shaft more optimizes.

The preferred embodiment that above are only the utility model, does not play the role of any restrictions to the utility model. Any person of ordinary skill in the field, in the range of not departing from the technical solution of the utility model, to the utility model The technical solution and technology contents of exposure make the variations such as any type of equivalent replacement or modification, belong to without departing from the utility model Technical solution content, still fall within the scope of protection of the utility model.

Claims (7)

1. a kind of valve self-locking worm gear reducer driving device, which is characterized in that including babinet, case lid, the first axle sleeve, input Rubber gasket is arranged in axis, worm screw, turbine and handwheel between the babinet and case lid, axis hole is equipped in the babinet, described defeated The first end for entering axis stretches into the axis hole, has been bolted the worm screw on the input shaft, the worm screw and described Turbine cooperation in case lid, the first axle are set between the input shaft and the axis hole, and the second of the input shaft End is connect with the handwheel；Wherein, the tube wall of first axle sleeve is equipped at least one through-hole, and rolling is arranged in the through-hole The tube wall of pearl, first axle sleeve is arranged a rubber sealing boot outside.

2. valve according to claim 1 self-locking worm gear reducer driving device, which is characterized in that the through-hole is cut Face is inclined chamfering.

3. valve according to claim 2 self-locking worm gear reducer driving device, which is characterized in that the ball it is straight Diameter is more than the pipe thickness of first axle sleeve.

4. valve according to claim 1 self-locking worm gear reducer driving device, which is characterized in that the turbine it is upper Connecting valve direction board, the switch direction board is held to be connected with the turbine by screw.

5. valve according to claim 1 self-locking worm gear reducer driving device, which is characterized in that further comprise holding Lid, the end cap are arranged in the axis hole, the first end in contact of the end cap and the input shaft.

6. valve according to claim 1 self-locking worm gear reducer driving device, which is characterized in that on the outside of the axle sleeve It is further provided with oil sealing.

7. valve according to claim 1 self-locking worm gear reducer driving device, which is characterized in that the input shaft The second axle sleeve is equipped on the outside of first end.