CN210661613U

CN210661613U - High-efficient valve drive arrangement

Info

Publication number: CN210661613U
Application number: CN201921709156.1U
Authority: CN
Inventors: 蔡春喜; 王晋
Original assignee: Tianjin Tanggu Water Seal Valve Co ltd
Current assignee: Tianjin Tanggu Water Seal Valve Co ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-06-02
Anticipated expiration: 2029-10-12

Abstract

The utility model discloses a high-efficient valve drive arrangement mainly includes box, input shaft, worm cover, worm wheel etc, the case lid with the box is connected, be provided with the meshing in the box worm wheel and worm cover, be provided with two restrictions on the box the worm wheel rotates the displacement stop bolt, input shaft one end stretches into in the box, the worm cover is fixed on the input shaft, the cover has the locking disc on the input shaft, the locking disc with box fixed connection, be equipped with the axle sleeve between input shaft and box, the worm cover adopts the screw connection with the input shaft, be equipped with worm cover stop gear between worm cover and box. The input shaft and the worm sleeve of the utility model are connected by adopting a screw form, the positioning is accurate, the meshing precision is improved, and the screw connection form is convenient for later maintenance; the worm sleeve limiting mechanism is beneficial to correct meshing of the worm sleeve and the worm wheel, and meanwhile friction energy loss is effectively reduced, and the overall transmission efficiency is improved.

Description

High-efficient valve drive arrangement

Technical Field

The utility model belongs to the technical field of the valve, in particular to high-efficient valve drive arrangement.

Background

At present, the automatic control and remote control in the industries of chemical industry, petroleum industry, metallurgy industry, electric power industry, light textile industry and the like are commonly applied to valves with electric or pneumatic actuators, and the automatic valves are always in preset normally open or normally closed states when power is cut off or air is stopped. The patent application No. 201721440360.9 discloses a clutch type valve driving device, which is characterized in that: comprises a shell, and a worm wheel and a worm which are arranged in the shell and can be meshed or separated; the worm wheel is sleeved on the worm wheel shaft and rotates synchronously with the worm wheel shaft, the worm wheel shaft penetrates through the shell from top to bottom and can rotate in the shell, a first connecting part is arranged at the part of the worm wheel shaft extending out of the upper cover of the shell, and a second connecting part is arranged at the part of the worm wheel shaft extending out of the lower cover of the shell; the shaft sleeve is arranged on the worm shaft and rotates synchronously with the worm shaft, the worm shaft and the worm wheel shaft are arranged in a crossed manner, the worm shaft penetrates through the shell from front to back, two ends of the worm shaft, extending out of the shell, penetrate through the eccentric block and are fixedly arranged on the eccentric block in a rotatable manner, and one end of the worm shaft, extending out of the eccentric block, is provided with a third connecting part; the eccentric block can be fixedly arranged at the front side and the rear side of the shell in a rotatable mode by taking the fixed shaft as the center. The device can be combined with a pneumatic actuator or an electric actuator to realize pneumatic manual or electric manual control on the cut-off valve, and has the advantages of simple structure and reliable operation. But the structure of the worm and the worm shaft is simpler, the worm is easy to deviate, the adjusting and transmission precision is not enough, and the whole structure is inconvenient in operation and maintenance.

Disclosure of Invention

The utility model discloses to the technical problem who exists among the prior art, provide a high-efficient valve drive arrangement, the key connection structure who has designed input shaft, worm cover and box has improved regulation and transmission precision, has also made things convenient for drive arrangement's operation and maintenance.

The utility model adopts the technical proposal that: the utility model provides a high-efficient valve drive, mainly includes box, case lid, input shaft, worm cover, worm wheel and stop bolt etc, the case lid with the box is connected, be provided with the meshing in the box worm wheel and worm cover, be provided with two restrictions on the box the worm wheel rotates the displacement stop bolt, input shaft one end stretches into in the box, the worm cover is fixed on the input shaft, the cover has the locking disc on the input shaft, the locking disc with box fixed connection, be equipped with the axle sleeve between input shaft and box, the worm cover adopts screw connection with the input shaft, be equipped with worm cover stop gear between worm cover and box.

Preferably, the worm sleeve limiting mechanism comprises two adjusting gaskets and a needle bearing positioned between the adjusting gaskets, and the worm sleeve limiting mechanism is sleeved on the input shaft.

Preferably, the box body and the box cover are connected by bolts, and an adhesive layer is arranged on the contact surface of the box body and the box cover.

Preferably, the top of the worm wheel is provided with an indication switch.

The input shaft and the worm sleeve are fixedly connected by screws, so that the positioning is accurate; the input shaft is provided with the lock disc, the shaft sleeve is arranged between the input shaft and the box body, the adjusting gasket is arranged between the worm sleeve and the box body to limit the position of the worm sleeve, and meanwhile, the worm sleeve is ensured to be correctly meshed with the worm wheel, so that the adjusting and transmission precision is improved. The box body and the box cover are combined by adopting the design of bolt matching and gluing, the sealing performance is good, and the maintenance is also convenient. The indicating switch at the top of the worm gear visually indicates the state of the driving device.

Compared with the prior art, the utility model discloses the beneficial effect who has is: 1. the stop bolt is designed in a limiting way, is easy to adjust and can completely realize accurate opening and closing at 90 degrees;

2. the light lock disc design ensures the controllability of the valve switch under the condition of not increasing the torque, and has low cost, simple mode and easy operation;

3. the input shaft and the worm sleeve are connected in a screw form, so that the positioning is accurate, and the meshing precision is improved;

4. an adjusting gasket is arranged between the worm sleeve and the box body to ensure the correct meshing of the worm sleeve and the worm wheel;

5. due to the design of the needle roller bearing, the friction energy loss is effectively reduced, and the overall transmission efficiency is improved;

6. the box body and the box cover are combined by adopting a bolt matched adhesive design, so that a rubber pad is abandoned, and the maintenance difficulty and cost are reduced while the waterproof and dustproof effect is ensured.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic front view of the present invention;

fig. 3 is a schematic front view of the present invention without a case cover.

In the figure, 1-box body, 2-box cover, 3-input shaft, 4-worm sleeve, 5-worm wheel, 6-stop bolt, 7-shaft sleeve, 8-adjusting gasket, 9-needle bearing, 10-lock disc and 11-indication switch.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The embodiment of the utility model discloses a high-efficient valve drive device, as shown in the figure, it includes box 1, case lid 2, input shaft 3, worm cover 4, worm wheel 5 and stop bolt 6, box 1 and case lid 2 adopt bolted connection, are equipped with the adhesive layer on its contact surface, input shaft 3 one end stretches into in the box 1, be equipped with axle sleeve 7 between input shaft 3 and box 1, axle sleeve 7 inlays on the box 1, worm cover 4 also fixes on input shaft 3, worm cover 4 adopts the screw connection with input shaft 3, be equipped with worm cover stop gear between box 1 and worm cover 4, worm cover stop gear cover is in on the input shaft 3, worm cover stop gear includes two adjustment gasket 8 and the bearing 9 that is located between adjustment gasket 8, the cover has lock disc 10 on the input shaft 3, the lock disc 10 is located outside the box body 1 and fixedly connected with the box body 1, the worm wheel 5 is arranged in the box body 1, the worm wheel 5 is meshed with the worm sleeve 4, the top of the worm wheel 5 is provided with an indicating switch 11, the indicating switch 11 is fixed on the worm wheel 5, and the box body 1 is provided with two stop bolts 6 used for limiting the rotation displacement of the worm wheel 5.

When the driving device is in a closed state, the worm sleeve 4 is meshed with the worm wheel 5, one side of the worm wheel 5 is tightly attached to the stop bolt 6, and the indication switch 11 points to SHUT. In the opening process, the input shaft 3 rotates to drive the worm sleeve 4 fixed on the input shaft to rotate, and the worm wheel 5 also rotates as the worm sleeve 4 is meshed with the worm wheel 5; until the other side of the worm wheel 5 clings to the other stop bolt 6, the driving device is in an open state; the indication switch 11 rotates together with the worm wheel 5, and the indication switch 11 points to OPEN at this time.

The present invention has been described in detail with reference to the embodiments, but the description is only exemplary of the present invention and should not be construed as limiting the scope of the present invention. The protection scope of the present invention is defined by the claims. Technical scheme, or technical personnel in the field are in the utility model technical scheme's inspiration the utility model discloses an essence and protection within range, design similar technical scheme and reach above-mentioned technological effect, perhaps to the impartial change that application scope was made and improve etc. all should still belong to within the protection scope is covered to the patent of the utility model.

Claims

1. The utility model provides a high-efficient valve drive, mainly includes box, case lid, input shaft, worm cover, worm wheel and stop bolt, the case lid with the box is connected, be provided with the meshing in the box worm wheel and worm cover, be provided with two restrictions on the box the worm wheel rotational displacement stop bolt, input shaft one end stretches into in the box, the worm cover is fixed on the input shaft, its characterized in that: the worm gear box is characterized in that a lock disc is sleeved on the input shaft and fixedly connected with the box body, a shaft sleeve is arranged between the input shaft and the box body, the worm sleeve is connected with the input shaft through a screw, and a worm sleeve limiting mechanism is arranged between the worm sleeve and the box body.

2. A high efficiency valve actuator assembly as set forth in claim 1 wherein: the worm sleeve limiting mechanism comprises two adjusting gaskets and a needle bearing positioned between the adjusting gaskets, and the worm sleeve limiting mechanism is sleeved on the input shaft.

3. A high efficiency valve actuator assembly as set forth in claim 1 wherein: the box body and the box cover are connected by bolts, and an adhesive layer is arranged on the contact surface of the box body and the box cover.

4. A high efficiency valve actuator assembly as set forth in claim 1 wherein: and an indicating switch is arranged at the top of the worm wheel.